NBN Fault Repair and Troubleshooting Services SA 2026 - Complete Cost Breakdown

NBN Fault Repair Costs in South Australia for 2026

An nbn fault is really a question about location before it is a question about money. The network operator repairs everything in the street, in the pit and up to the boundary of your property at no charge. Everything from that point inward is paid for by you. Until somebody establishes which side the problem sits on, no quote means anything and no retailer can help you.

The pricing on the owner side is straightforward once you are there. A registered cabler callout across South Australia in 2026 runs $120 to $250 including diagnosis, with hourly rates of $95 to $180 after the first hour. An internal socket repair sits between $150 and $380 and a new data outlet between $180 and $450. Replacing a failed lead-in cable on the owner side of the boundary runs anywhere from $600 to $2,800, depending on the length of the run and whether the existing conduit is still usable.

What catches people out is the loop that follows. You report a fault, the retailer runs a line test, the test comes back healthy because the network side is healthy, and the ticket is closed while your internet stays broken. That cycle can repeat itself for weeks on end. It happens because a retailer has no visibility of your internal wiring, your sockets or your wifi, and no mechanism for sending anybody to look at them. Breaking the loop means establishing the fault is internal and then calling a cabler directly.

South Australia has a specific wrinkle that shapes a lot of this, which is the mix of technologies across the state. Metropolitan Adelaide carries a patchwork of fibre to the premises, fibre to the node and hybrid fibre coaxial laid at different times, the regional towns are largely fibre to the node or fixed wireless, and the pastoral country runs on satellite. Each of those fails in its own way, so the first useful question anybody will ask you is which one you have.

Diagnosing the Fault Before You Call Anyone

Thirty minutes of checking costs nothing and determines everything that follows. The goal is narrow, which is to work out whether the problem is the network, the internal wiring or your own equipment.

Start at the network device, which is the box the nbn connection terminates in. On a fibre connection it is a white wall-mounted unit with a row of indicator lights. On fibre to the node there is no such box and the connection runs to a wall socket, and on hybrid fibre coaxial it is a small modem fed by a coaxial cable. Learning which of those you have takes one look and saves a great deal of confusion later. The lights on a fibre unit tell you a lot, since a device with no power or no optical signal is a different problem from one showing a healthy link while your router cannot connect.

The next step is isolating your own equipment. Plug a laptop directly into the network device or the first socket with a cable, bypassing the router and the wifi, and see whether the connection works. If it does, the fault is in your router or your wifi and no cabler is needed. If it does not, move the router to the first socket in the house and try again, because a working connection at one socket and a dead one at another points squarely at the internal wiring between them. Where the trouble turns out to be the computer , not the line at all, computer repair is a different and usually cheaper call.

Test at the boundary if you can reach it safely. Many South Australian properties have the incoming line terminating at an external box on the wall, and a connection that works when tested there but fails inside puts the fault in the owner-side cable or the internal wiring with certainty. That single test is what converts a fortnight of retailer tickets into one cabler visit.

Write down what you found and when, with times and dates. A log showing the pattern, such as dropping out every afternoon or failing only in wet weather, is genuinely useful to a technician and is also what you will need if the matter has to be escalated. Both wifi troubleshooting and general IT support become much cheaper when the problem has already been narrowed down.

Callout and Hourly Rates

Fixed-line communications cabling in Australia must be done by a registered cabler, which is a specific registration rather than a general electrical licence, although a great many South Australian electricians hold both. That requirement is why a handyman cannot legally work on your internal phone or data cabling.

A callout across South Australia runs $120 to $250 and typically includes the first half hour or hour of diagnosis. Hourly rates after that sit between $95 and $180 depending on the operator and whether the work is domestic or commercial. Many cablers will credit the callout against the repair if the work proceeds on the same visit, which is worth asking about before they arrive rather than after.

Minimum charges apply and they are entirely reasonable. Replacing a single damaged socket is fifteen minutes of actual work and nobody will attend for fifteen minutes of revenue, so expect a minimum of around $150 to $250 for any attendance. Bundling is the way around it, so if you want an extra data outlet in a home office or a television point moved, having that done on the same visit costs far less than a separate trip.

After-hours attendance carries a premium of $80 to $200 on top. Unlike a burst pipe, a dead internet connection is rarely worth that premium, and the honest advice is to wait for business hours unless you cannot work without it. Where you do need something immediately, remote IT support can often resolve router and configuration problems the same hour at a fraction of a callout, because no physical visit is involved.

Internal Wiring and Socket Faults

Internal wiring is the single most common paid repair in this category and the one retailers cannot touch. Socket repair or replacement runs $150 to $380 and a new data outlet $180 to $450.

The faults behind it are all thoroughly mundane. Old telephone sockets wired in series rather than to a single point, corroded terminals in a socket that has been in a wall since the 1970s, a cable stapled through during a renovation, extension leads and splitters that degrade the signal, and disused alarm or fax wiring still bridged across the line. All five produce the same symptom, which is a connection syncing at a fraction of its speed or dropping out with no pattern to it. On fibre to the node in particular the internal wiring matters enormously, because the copper inside your house is part of the signal path.

The standard fix on an older South Australian house is consolidating to a single point. A cabler disconnects everything except one socket, wires the connection directly to it, and runs new data cabling from there to wherever it is actually needed. That approach typically costs $350 to $900 depending on how many runs are involved and it routinely produces a step improvement in speed and stability on fibre to the node connections.

Construction decides the price more than the cable does. A plasterboard home on a slab with roof access is straightforward and the cabler can run a new outlet in an hour. A solid bluestone or double-brick Adelaide bungalow with no roof cavity above part of the house, or a 1960s brick home with a concrete slab between storeys, needs surface conduit or careful chasing and takes considerably longer. Expect the upper end of every range in those houses, and consider structured data cabling if more than one or two outlets are needed, because doing them together is much cheaper per point.

Where the work touches anything shared, a strata or community title property adds a step. Cabling that passes through common property generally needs the body corporate consent before it happens, and retrofitting approval afterwards is far harder than asking first. That applies across a great many Adelaide units, townhouses and apartment conversions.

Network Device and Power Faults

The network termination device is the box on your wall that the fibre or coaxial connection terminates in, and it is network operator equipment instead of yours. That distinction matters because a faulty unit is replaced at no cost to you.

Power supplies fail far more often than the devices themselves. The unit is fed by a plug pack, and those degrade over years of continuous use in a warm roof space, garage or laundry. The symptom is a device that works intermittently, drops out when it warms up in the afternoon, or has gone dark. Before reporting anything, check that the plug pack is in the socket, that the socket itself works with something else plugged into it, and that nobody has switched it off at the wall, because that last one accounts for a surprising number of total outages. An electrical fault finding visit is the right call where the powerpoint itself is dead , not the device plugged into it, and an electrical safety inspection is worth considering on any house where several circuits are behaving oddly.

Battery backup units on older fibre installations are worth knowing about. Some early fibre to the premises connections were installed with a battery backup for the network device, and those batteries reached end of life years ago. A unit alarming or beeping is usually the dead battery , not a line fault, and the batteries are no longer supported, so the normal outcome is simply removing it from service.

Where the device is genuinely faulty, the replacement is arranged through your retailer instead of directly with the network operator, and you should not be charged. If a technician attends and finds the fault was in your equipment or your internal wiring , not the network, an incorrect callout fee can be charged to your retailer and passed on to you, and that fee is typically a few hundred dollars. That risk is why the self-diagnosis step matters so much.

Heat is the recurring South Australian factor here. A network device or router mounted in a garage, a laundry with a west-facing window, or worst of all a roof space will spend summer afternoons well beyond its rated operating temperature. The symptom is a connection that works all winter and turns unreliable every January. Relocating the equipment into the conditioned part of the house fixes it permanently, and that single change resolves a meaningful share of the dropout complaints in the Riverland, the Murraylands and the north.

Lead-In Cable and Conduit Faults

The lead-in is the cable running from the street or the pit to your building, and it is where the most expensive owner-side repairs live. Replacement of that cable runs $600 to $2,800.

The split in responsibility is the thing to establish first. Infrastructure up to the boundary is the network operator responsibility, and the cable from there to the building is generally the property owner responsibility. On a suburban block that owner-side run might be ten metres. On a rural property where the house sits three hundred metres back from the road it can be very long indeed, and that length is why the upper end of the range exists.

Conduit is the real cost driver rather than the cable. Where there is existing serviceable conduit the new cable is pulled through it and the job is quick. Where the conduit has collapsed, which is extremely common on older Adelaide properties because reactive clay crushes shallow-laid conduit over decades, the run has to be excavated and re-laid. That turns a few hundred dollars into a few thousand, and on a property with a driveway, paving or established garden across the route it costs more again.

For a property being connected instead of repaired, the same cost sits in the installation and is covered in our nbn connections and installations guide. The practical advice for any pre-2000 Adelaide property is to assume the conduit may not be usable and to get that checked early, because discovering it on the day a technician attends means a wasted appointment and a long wait for the next one.

On very long rural runs, satellite is sometimes the better economic answer than repairing the lead-in at all. Where replacing three hundred metres of collapsed conduit is a four thousand dollar civil job, a satellite installation may cost less, work sooner and avoid the problem recurring. That comparison is worth doing explicitly on any property where the lead-in run is long.

Fibre to the Node and Copper Line Faults

Fibre to the node runs fibre to a street cabinet and then uses the existing copper pair for the last stretch to your house, which means the copper and every joint in it is part of your connection. It is the technology most prone to fault and it still serves a great deal of South Australia.

Distance from the node sets your ceiling speed and nothing can change that except a technology upgrade. A property four hundred metres from its node performs very differently from one two kilometres away on the same plan, and a technician cannot fix physics. Knowing your approximate distance explains a lot of otherwise baffling speed complaints, and it also tells you whether paying for a faster plan will achieve anything at all.

Water in the pit is the classic fault and it has a signature worth recognising. A connection that degrades or drops out during and after rain, then recovers as things dry, is almost always moisture in a copper joint somewhere between you and the node. That is a network-side fault repaired at no cost to you, but it needs reporting as a pattern instead of as a single outage, because a technician attending on a dry day will find nothing wrong. Write the dates down each time it happens.

Internal copper matters more on this technology than on any other. Because the signal path includes the wiring inside your house, old series-wired sockets, corroded terminals and disused bridged cabling all drag the sync speed down, and consolidating to a single point commonly produces an immediate and substantial improvement. That is the one owner-side repair on fibre to the node that reliably pays for itself.

Fibre to the Premises Faults

Fibre to the premises is the most reliable of the fixed technologies and when it does fail it tends to fail completely rather than degrade. A fibre connection that is working at all is usually working properly.

The commonest fault is physical damage to the fibre itself, and it is almost always caused by somebody digging. Landscaping, fencing, a new driveway, irrigation trenching or a pool excavation all cut fibre, and unlike copper a cut fibre produces an immediate total outage with no partial service. If the break sits inside your boundary and a contractor you engaged caused it, the cost falls to you, and it runs $600 to $2,000 because splicing fibre requires specialist equipment.

That exposure is avoidable and the mechanism is free. Before any excavation on your property, including a fence post, request the underground asset information for your address through the national referral service, which returns plans showing where services run. It takes a few days and costs nothing, and it is the difference between a straightforward landscaping job and a two thousand dollar fibre repair plus however long you spend without a connection.

Indicator lights on the network device are diagnostic on this technology. A unit with power but no optical signal points to a break between you and the exchange and is a network fault to raise with your retailer. A unit showing a healthy optical link while your router cannot connect puts the problem in your own equipment or the data cable between the two, which is an owner-side matter and usually a cheap one.

Upgrades sit alongside repairs on this particular technology. Where an address on fibre to the node is eligible for a fibre upgrade, that process replaces the copper entirely and resolves a whole class of faults permanently instead of repairing them repeatedly. It is worth checking eligibility before spending money on internal copper work, because an upgrade can make that spend unnecessary.

Hybrid Fibre Coaxial Faults

Hybrid fibre coaxial uses the former cable television network for the final run to the property, and in South Australia it serves parts of metropolitan Adelaide where that network was originally built. It has its own distinct set of faults with it.

Signal splitters are by far the usual culprit here. The coaxial network was designed for television and many houses still have splitters installed to feed multiple outlets, each of which weakens the signal. One that is slow or drops out often improves markedly when the modem is connected straight to the incoming coaxial cable with the splitters removed, and that is a cheap owner-side fix at $150 to $350. The same coaxial network often feeds television outlets, so antenna and television point work is more often than not bundled into the same visit.

Corrosion in the connectors is the second common cause. Coaxial connectors on an external wall, in a garage or in a roof space corrode over twenty years, and the symptom is a connection that degrades slowly over months instead of failing suddenly. Replacing the connectors and the short cable runs is inexpensive and frequently restores full performance.

The device itself is network equipment and replaced at no cost where it has failed. As with fibre, the test that saves money is connecting a computer directly to the modem with a cable, because a healthy result there puts the fault in your router or wifi rather than in the network, and no technician visit is needed at all.

Fixed Wireless and Satellite Faults

Fixed wireless serves a great many South Australian regional towns and their surrounds, using an antenna on your roof pointed at a tower. Satellite covers the properties beyond even that, which in this state means a very large area.

Antenna alignment is the main fixed wireless fault and it drifts for mundane reasons. Wind loading over years, a storm, mounting hardware working loose, or somebody leaning a ladder against it all move the dish slightly, and a small angular change is a large signal change at distance. Realignment runs $200 to $450 and is usually a quick visit. Tree growth is the other cause and it is slower and more permanent, because a line of sight that was clear when the antenna was installed closes up over five or ten years and the only fixes are height or removing the obstruction.

Congestion on fixed wireless is a tower capacity issue , not a fault at your property, and it has a recognisable pattern of good performance overnight and poor performance from late afternoon through evening. No technician visit will change it and no amount of internal cabling work will either. Where a business depends on the connection, remote IT support can at least keep the rest working. It is worth reporting so that it is recorded, but the realistic alternatives are a different technology or accepting the limitation.

Satellite faults divide into obstruction, weather and equipment. An obstruction that has grown into the sky view is the commonest, heavy rain causes brief outages that are inherent to the technology rather than a fault, and the dish and router are consumer equipment with ordinary failure rates. For properties where the fixed network simply does not reach, our satellite installation guide covers the installation side and the costs that go with it.

For remote South Australian properties, the practical reality is that nobody is attending quickly. A fault on a station in the far north or west of Ceduna may wait a week or more for a technician. That makes a backup path genuinely valuable, whether it is a mobile data service as a second connection or a spare router kept on the shelf. Where the issue is configuration rather than hardware, remote IT support resolves it the same day without anybody driving anywhere.

Intermittent Dropouts and Speed Problems

Intermittent faults are the hardest to get fixed because the thing that resolves them is a pattern instead of a single event. A technician attending while everything works will find nothing wrong and close the job.

The only discipline that reliably works is logging it. Record the date, the time it started, how long it lasted and what else was happening, over at least a week. Patterns emerge quickly and each pattern points somewhere specific. Dropouts at the same hour every evening are congestion. Dropouts confined to hot afternoons are a thermal problem. Dropouts during and after rain are water in a copper joint. Dropouts when a particular appliance runs are electrical interference. Random dropouts with no pattern at all are usually failing equipment.

Each of those points somewhere different, which is the whole value of keeping the log. It tells you which one you have before anybody charges you to go looking.

Speed complaints need separating into two different questions before anything useful can be done. The first is whether the connection is delivering what the plan promises, which is tested with a wired computer at the first socket at a quiet time of day. The second is whether the speed is reaching your devices, which is a wifi question. A great many speed complaints are wifi coverage problems in houses with thick walls, and no nbn fault exists at all.

Retailers are required to tell you what speeds to expect on your plan during busy hours instead of only the theoretical maximum, and the broader rules on how broadband performance is advertised are overseen by the Australian Competition and Consumer Commission. If you are consistently receiving well below the busy-period speed your retailer advertised for the plan, that is a basis for either a remedy or moving to a cheaper plan that matches what the line can deliver.

Router, Modem and WiFi Faults

A large share of what people report as nbn faults are router or wifi problems, and the distinction matters because the fix is cheap and nobody needs to visit. Router supply and configuration runs $180 to $600.

Retailer-supplied routers are built to a price and they are the weak point in a great many connections. The wifi radio is modest, the processor struggles once a household has thirty connected devices, and the units run hot. Replacing one with a decent unit from a manufacturer like TP-Link, Asus, Netgear or Ubiquiti typically costs $180 to $450 for the hardware and resolves a long list of complaints that no amount of line testing would have touched. Keep the retailer settings, because the replacement needs the same connection credentials and in some cases a specific configuration.

The age of the unit is a reasonable guide. A router more than about five years old is likely to be the limiting factor in a modern household regardless of how well it worked when it was installed, because the number of devices in an average South Australian home has grown a good deal over that period and older units simply run out of capacity.

Coverage problems are a separate matter from the router itself and they are heavily influenced by what the house is built from. Solid stone, double brick, foil-backed sarking and a concrete slab between storeys all block wifi effectively, which is why a single router in the hallway of an Adelaide bluestone cottage cannot cover it no matter how good the router is. The answer in those houses is additional access points with wired backhaul , not a more powerful single unit, and mesh and wifi work is the right starting point. A mesh system supplied and configured runs $450 to $1,600.

Before buying anything, two free checks are worth doing. Move the router to a central position instead of leaving it where the socket happens to be, because position matters more than specification in most houses. And change the wifi channel, since in an Adelaide apartment building or a dense inner suburb the two point four gigahertz band is commonly congested with neighbouring networks and a channel change alone can transform performance.

Who Is Responsible and Who Pays

Three parties can be involved in an nbn fault and they have quite different roles, which is why being passed between them is such a common experience. Knowing the boundaries lets you direct the problem to whoever can actually act on it.

Your retailer is your only point of contact with the network. You cannot raise a fault with the network operator directly as a residential customer, so the retailer lodges it on your behalf, and that is the correct channel for anything on the network side. The network operator owns and maintains the infrastructure to the boundary and the network device, and repairs that at no charge. You own everything from the boundary in, meaning the owner-side lead-in, the internal cabling, the sockets and all your own equipment.

The incorrect callout charge is the trap worth knowing about. If a network technician attends and finds the fault was in your wiring or your equipment , not the network, a fee of a few hundred dollars can be charged through to your retailer and passed on to you. That is entirely avoidable with half an hour of self-diagnosis, and it is the main financial reason to do the checks before reporting anything.

Rental properties add a layer and the division is reasonably clear in practice. Permanent infrastructure, meaning the lead-in, internal cabling and sockets, is the owner responsibility because it is part of the building. The service, the plan and usually the router are the tenant responsibility because they are the tenant service. A tenant should report a cabling or socket fault to the agent in writing rather than arranging a cabler themselves, since the cost is the owner concern and unauthorised work creates its own problem.

Strata and community title properties involve the body corporate for anything touching common property. Cabling that passes through a common wall, a riser or a shared roof space generally needs consent, and that is worth obtaining in writing before work rather than after. Across the many Adelaide unit and townhouse developments this is a frequent source of delay.

Escalating a Fault That Is Not Getting Fixed

The escalation path exists and it works, but only if the groundwork is there. Two things carry an escalation, being a written record and a reference number for every contact.

Start by asking your retailer to escalate internally and to give you the fault reference. Retailers are obliged to have a complaints process and a great many unresolved faults are resolved at that step once they stop being a routine ticket and become a complaint. Put it in writing even if you began by phone, because a written record is what the next stage will ask for.

Where the retailer cannot or will not resolve it, the Telecommunications Industry Ombudsman handles disputes between consumers and telecommunications providers at no cost to you, and it can deal with matters including prolonged faults, missed appointments and billing for a service that has not worked. Its involvement is typically what finally moves a long-running fault, and what it will ask you for is your log of dates, symptoms, reference numbers and what each party told you.

Keep your expectations grounded on what escalation can achieve. It can compel attention, a proper investigation, appointments that are actually kept and compensation or billing adjustment for a service you paid for and did not receive. It cannot make a fibre to the node line go faster than its distance allows, and it cannot resolve a fault that is in your own internal wiring, which remains yours to fix at your cost.

Adelaide Metropolitan Pricing Variations

Cabler rates are reasonably uniform across metropolitan Adelaide, so what varies between suburbs is how long the work takes instead of what the hour costs. Construction of the house is really the whole story.

The older inner and inner-eastern suburbs are the expensive ones. Bluestone and sandstone cottages in Prospect, Norwood, Unley and the city fringe have solid walls with no cavity to run a cable through and limited roof access above parts of the house. Many also carry a century of accumulated telephone wiring still bridged across the line. A job quoted at an hour in a newer house is comfortably three hours in one of those, and the result often needs surface conduit because there is nowhere else for the cable to go.

CBD apartments and the inner-city unit conversions carry a different constraint, which is permission rather than construction. Work touching common property needs body corporate consent, risers may be locked and require building management access, and some buildings have a nominated contractor you are obliged to use. None of that is expensive in itself but all of it adds delay, and that delay is worth factoring in before you promise anybody a working connection by a particular date. Where a home office is being set up from scratch, software installation and setup is worth scheduling after the connection is proven rather than before.

Out in the northern and southern growth areas the work is cheapest and quickest. Plasterboard construction on a slab with clear roof access means a cabler can run a new outlet quickly, and the houses are new enough to have sensible cabling already. Estates in Munno Para, Blakeview and Seaford were in many cases built with fibre from the outset, which removes a whole class of fault. The eastern foothills sit in between, with newer houses but stepped and split-level construction that complicates cable runs.

Regional South Australian Pricing Patterns

Regional pricing on this work is driven by two things that pull in opposite directions, being lower labour rates and a much thinner pool of registered cablers. In the larger centres the first wins and in the remote country the second does.

The larger regional centres, from Mount Gambier across to Port Lincoln and up through Port Augusta, all have local cablers and electricians holding cabling registration, and a town job prices at or slightly below outer Adelaide. Travel enters the moment you are outside the town boundary, typically as a mobilisation charge of $100 to $350, and on a long rural driveway the owner-side lead-in run is both longer and more likely to need excavation.

The mix of technologies changes what goes wrong. Regional towns are predominantly fibre to the node, so copper faults, water in pits and distance-limited speeds dominate the fault list. The surrounding farming country runs largely on fixed wireless, where alignment and tree growth are the recurring issues. The pastoral north and the far west are satellite, where the problems are obstruction, weather and equipment instead of cabling at all.

Availability rather than price is the real constraint beyond the regional centres. West of Ceduna, around Coober Pedy and Roxby Downs, and on stations across the north, there may be no registered cabler within several hours, and a fault can wait a week or more for attendance. Properties in that country are well served by keeping a spare router on hand and by having a secondary connection path, because a single point of failure several hundred kilometres from the nearest technician is a genuine business risk , not an inconvenience. For the broader picture, our South Australian electrical services hub covers the trades who most often hold cabling registration alongside their electrical licence.

The Adelaide Hills deserve a separate mention because it looks metropolitan and behaves regionally. Stirling, Crafers, Aldgate and the surrounding districts have heavy tree cover that affects fixed wireless line of sight, long driveways that make owner-side lead-in runs expensive, and stone houses that make internal cabling slow. Adelaide-based cablers will travel there readily, so availability is good, but the jobs themselves take longer than their metropolitan equivalents.

What to Look Out For When Hiring

This category has one hard requirement and a number of soft ones. The hard requirement is cabler registration, and it is the first thing to establish before anyone touches a cable.

Fixed-line communications cabling must be carried out by a registered cabler, and the registration is specific. A general electrical licence does not by itself authorise the work, although many South Australian electricians hold both and will say so readily. Ask for the registration details and check them instead of accepting a verbal assurance, because non-compliant cabling can affect your insurance position and will certainly complicate matters if a fault is later attributed to it.

The things worth asking before anyone attends are straightforward. Ask whether the callout includes diagnosis and whether it is credited against the repair if the work goes ahead on the same visit. Ask what the hourly rate is after the first hour and in what increments it is billed. Ask whether the quote covers making good, meaning patching and painting where a cable has been chased into a wall, since that is frequently excluded and is a separate trade. And ask what happens if the fault turns out to be on the network side, because an honest operator will tell you they will identify it, document it for your retailer, and charge only the diagnosis.

For getting comparable quotes, the single most valuable thing is doing the self-diagnosis first and writing it down. A page describing which technology you have, what the device lights show, whether a cabled laptop works at the first socket, and what the fault pattern is over a week lets an operator quote the actual job instead of quoting an investigation. Hand the same page to each operator you call. Then bundle, because a cabler already on site can add a data outlet, move a television point or fix a dead socket in another room for a fraction of a separate visit, and those small items are precisely where a second callout is wasted money.

Be sceptical of two specific sales approaches in this category. The first is an operator who proposes a full rewire of the house before diagnosing anything, since consolidating to a single point is usually enough and costs a third as much. The second is anyone selling hardware as the answer to a fault they have not measured, because a new router does not fix a water-affected copper joint and a mesh system does not fix a line syncing at a fraction of its capacity. Measurement should always come first and hardware second.

On payment and paperwork, keep it simple and documented. Get the scope and the price in writing before work starts and keep any deposit modest on a job of this size. Ask for a written record of what was done, including the cable type and where it was run, because that record is genuinely useful the next time anybody works on the house. You can verify a contractor business details and licensing position through Consumer and Business Services before engaging them.