Window and Door Draught Proofing and Sealing Costs VIC 2026 - Get Free Quotes

What Draught Proofing and Sealing Covers

Draught proofing is the work of sealing the gaps around windows and doors, and elsewhere in a home, that let air leak in and out. It covers fitting seals to the bottom and edges of doors, weatherstripping windows so they close tightly, sealing gaps around frames with the right filler, and dealing with the other small openings that let draughts through, such as unused vents and chimneys. The aim is to stop the uncontrolled air leakage that makes a home cold and draughty in winter and lets the cool air escape in summer, so it is fundamentally about controlling the air moving through the building. Much of it is small, low-cost work that adds up to a noticeable difference. What ties it together is closing the gaps that waste heating and cooling. Each gap sealed is a little less conditioned air leaking away. Added up across a whole home, those small gaps make a large difference. A house can have surprising amounts of total leakage spread across many minor openings. Sealing them one by one is how the overall draughtiness is brought down. No single gap is large, but together they account for a real share of the heat loss. That is why a thorough job seals many small things rather than one big one. The attention to the little gaps is what separates a thorough job from a quick one. A careful installer hunts down the sources a rushed one walks past. Thoroughness is the quality that makes the difference in the end.

The work is simple in nature, which shapes who does it and what matters. Draught proofing is unlicensed work that a handyman, a draught-proofing specialist or a capable homeowner can do, so what matters is using good-quality seals and fitting them properly, rather than any licence, and it sits comfortably within general handyman services for the home. Done well with durable seals, it lasts for years, while a cheap or careless job soon fails. This page is the Victorian guide to window and door draught proofing, what it costs in 2026, how doors and windows are sealed, the balance with ventilation, the rebate pathway, and how to get it done well, so you can make your home more comfortable and cheaper to run. It is written to help you seal a home effectively without falling into the one trap of over-sealing it. That single caution aside, the work is among the simplest improvements a home can have.

The reason draught proofing is so worthwhile is that draughts waste a surprising amount of energy, and sealing them is cheap. Air leaking around poorly sealed windows and doors is one of the largest sources of heat loss in a typical home, so stopping it noticeably reduces the heating needed in a Victorian winter and the cooling in summer, which shows up as lower energy bills and a more comfortable home, all for a modest outlay. Few home improvements return their cost as quickly in comfort and savings. Across the state, draught proofing is widely regarded as one of the most cost-effective energy efficiency measures available. It delivers a real, noticeable improvement for very little money. That combination of low cost and clear benefit is what makes it so widely recommended. It is often the first thing suggested for a cold or draughty house. Before bigger upgrades are considered, sealing the draughts is the obvious starting point. It is the low-cost step that improves comfort while larger plans are weighed up. There is rarely a reason to delay it, given how cheap and effective it is. It improves the home immediately while bigger decisions can wait. Few improvements offer so much benefit for so little delay or expense. That is a large part of why it is so widely recommended for Victorian homes. The combination of low cost, quick payback and real comfort is hard to match. For a draughty Victorian home, it is usually the first improvement worth making.

The sections ahead set out what draught proofing costs in Victoria for 2026, why draughts matter so much for comfort and energy bills, and how doors and windows are sealed. They cover sealing gaps and the other common draught sources, the important balance between sealing and the ventilation a home needs, the Victorian Energy Upgrades rebate that can reduce the cost, and how to get the work done well. The aim is that you understand what the work involves, why it is so worthwhile, and the one important caution around ventilation, so you can seal your home effectively and safely. The figures are Victorian and current for 2026, and the theme throughout is that draught proofing is cheap, effective and well worth doing, provided it is balanced against the ventilation the home requires. Get that balance right and the result is a warmer, cheaper home that still breathes properly. The two goals, comfort and healthy air, are entirely compatible with a little thought.

Why Draughts Matter

Draughts are a major source of wasted heating and cooling, which is why sealing them pays off. In a typical home, a large share of the heat lost in winter goes out through air leakage around windows, doors and other gaps, so the heater works harder and longer to keep the home warm, and in summer the same gaps let the cooled air escape. This uncontrolled air movement is both uncomfortable and expensive, since you are effectively paying to heat or cool air that promptly leaks away. Sealing the gaps keeps the conditioned air inside where you want it. Stopping draughts is one of the most direct ways to cut wasted energy in a home. It tackles the heat loss at its source rather than just adding more heating. Sealing the leaks means the heating you do use actually stays in the home. The result is the same warmth for less running of the heater.

Comfort is the other half of the picture, and it is felt immediately. A draughty home feels cold near windows and doors even when the heater is running, with cold air pooling around the feet and rooms that never quite feel warm, and sealing the draughts removes that chill and makes the whole home feel more comfortable. The difference is often noticeable straight away, which is part of why draught proofing is so satisfying. It also reduces the dust and noise that come in with the draughts. The comfort improvement alone makes draught proofing worthwhile for many households, before the energy savings are even counted. A home that feels warm and still, rather than cold and draughty, is simply nicer to live in. The chill around windows and doors that people put up with disappears once they are sealed.

Victoria's climate makes draught proofing particularly valuable, especially for heating. Much of Victoria has cold winters, so homes are heated for a good part of the year, which means heat loss through draughts is a real and ongoing cost, and the southern and elevated parts of the state feel this most. The savings from sealing a draughty home accrue every winter, year after year, so the modest cost is recovered comfortably over time. Summer cooling benefits too, particularly in the hotter north and west. The heating-dominated Victorian climate is exactly the setting where draught proofing delivers its strongest and most lasting value. In the cooler southern and hill suburbs, the winter savings are felt keenly, with related work like door services often handled at the same time. The longer and colder the heating season, the more a sealed home saves over the years. In much of Victoria that season is a long one, so the savings accumulate. A sealed home keeps returning that benefit every winter it is lived in. The one-off cost is recovered comfortably across a few heating seasons. After that, the savings simply continue each year at no further cost. The seals keep working quietly through every heating and cooling season.

Door Draught Proofing

Doors are often the worst offenders, and the gap under the door is the first thing to seal. The gap beneath an external door can let a significant draught through, and it is sealed with a door bottom seal, a brush seal, an automatic drop seal or a simple door sweep fitted to the bottom of the door, closing the gap to the threshold. This is one of the cheapest and most effective single draught-proofing jobs, since the under-door gap is usually the largest. It suits external doors especially, where the draught and the temperature difference are greatest. Sealing the bottom of an external door is the classic quick win in draught proofing. It is often the single change that makes the biggest immediate difference to a room. The under-door draught is usually the one people feel most around their feet.

The gaps around the sides and top of a door also leak, and a perimeter seal addresses them. Weather seals fitted to the door frame, or to the door itself, close the gaps along the jambs and head so the door seals against them when closed, which deals with the draughts that a bottom seal alone leaves, completing the job on a draughty door. This is worth doing on external doors and on internal doors to unheated spaces, and it pairs naturally with any door repairs or adjustments. A door that is warped or poorly fitting may need attention first. Sealing the full perimeter, not just the bottom, is what properly draught-proofs a door. A bottom seal alone leaves the side and top gaps still leaking. Closing the whole perimeter is what turns a partial fix into a proper one. The side and head seals finish what the bottom seal begins. A door is only fully sealed once all four edges are dealt with. Leaving any edge open gives the draught an easy way back in.

Some doors need a little repair or adjustment before they can be sealed well, which is worth knowing. A door that has dropped, warped or no longer closes squarely will not seal effectively no matter how good the weatherstripping, so addressing the fit first, through adjustment or door frame and jamb repair, gets the best result, and a handyman can often do both together. An old front entry door that is beyond sealing may be better replaced. Getting the door working properly is the foundation for sealing it. A well-fitting, well-sealed door is the goal, and sometimes that means a small repair first. The two jobs, fitting and sealing, naturally go together for the best result. A door that closes squarely and seals well is far more effective than weatherstripping over a poor fit.

Window Draught Proofing

Windows leak around the opening sashes, and weatherstripping is the main fix. The gaps where a window sash meets the frame are sealed with weatherstripping, foam, rubber or brush seals fitted so the window closes tightly against them, stopping the draughts that come through a loose-fitting or older window. Different window types, sliding, double-hung, casement and awning, take slightly different seals, but the principle is the same, closing the gap at the opening. This works on most existing windows without replacing them, which keeps the cost low. Weatherstripping the opening parts of a window is the straightforward way to stop it leaking air. It targets exactly where the draught comes through without disturbing the glass. For most windows, sealing the opening parts is all that is required. The fixed parts of a window rarely leak, so the focus is on the sashes that move.

Older and timber windows often leak the most and benefit the most from sealing. Original timber windows, common in older Victorian homes, frequently have gaps from age, shrinkage and wear, so they can be quite draughty, and sealing them makes a marked difference to comfort while keeping the character windows in place. This is a popular alternative to replacement for those who want to keep their original windows, and it ties into any glass repairs the windows need. Where windows are beyond sealing, replacement or retrofit is the other path. For period homes especially, sealing the existing windows is often the sensible, character-preserving choice. It keeps the original joinery that gives an older Victorian home its character. Many owners of period homes much prefer sealing to losing their original windows. Keeping the character joinery while gaining the comfort is the appeal. It is a practical way to modernise the performance of an old home without altering its look. The comfort improves while the period character stays exactly as it was. For heritage and older homes, that is often the deciding advantage. It delivers modern comfort without compromising the original windows.

For homes wanting to go further, draught sealing pairs naturally with double glazing and other upgrades. Where comfort and efficiency are a priority, sealing can be combined with, or lead on to, double glazing through double glazed window retrofit, which adds insulation as well as sealing, or with replacing failed windows entirely via window installation and repairs. Sealing is the cheapest first step, while glazing is the larger upgrade for those who want it. The two work well together as a comfort strategy. Draught sealing stands on its own, but it also sits naturally alongside the bigger window-efficiency upgrades. Many homeowners seal first and consider glazing later as budget allows. Sealing now does not rule out a glazing upgrade down the track.

Sealing Gaps and Other Sources

Beyond the doors and windows themselves, the gaps around their frames leak air and are sealed with the right filler. The join between a window or door frame and the surrounding wall often has gaps that let draughts through, and these are sealed with an appropriate gap filler or caulk, neatly applied, which closes a draught source that weatherstripping the opening alone does not address. This is simple work but it makes a difference, since these perimeter gaps can be surprisingly leaky. It also tidies the finish around the frame. Sealing the gaps around the frames, as well as the openings, is part of a thorough draught-proofing job. Skipping the frame gaps leaves an easy draught path that the weatherstripping misses. A thorough job seals both the opening and the surround. Leaving one or the other undone means the draught simply finds the gap that remains.

Homes have a number of other draught sources that are easily overlooked, and a good job addresses them. Unused chimneys, old wall vents, gaps where pipes and cables pass through walls, and gaps around skirting and floorboards can all let draughts in, so a thorough draught-proofing job looks for and seals these, often with simple, inexpensive solutions like a chimney draught stopper. An open, unused chimney in particular can lose a lot of heat. Finding and sealing these lesser-known sources adds to the result. A comprehensive draught-proofing job goes beyond the obvious windows and doors to the other gaps around the home. The overlooked sources often add up to as much as the windows and doors themselves. An unused open chimney in particular can undo much of the sealing done elsewhere.

Sealing also connects to broader weatherproofing and insulation, which work together for comfort. Draught proofing complements insulation, since sealing stops air leakage while ceiling and wall insulation slows heat conduction, and the two together make a much bigger difference than either alone, which is worth bearing in mind when improving a home's comfort. Sealing gaps in the building fabric, such as around weatherboards, contributes too. Draughts, insulation and the building envelope are all part of the same comfort picture. Draught proofing is most powerful as part of a wider approach to sealing and insulating the home. Sealing and insulation reinforce each other, which is why they are often planned together, sometimes with carpentry and timber repairs to the building fabric. Together they address both the air leaking out and the heat conducting through. A home that is both sealed and insulated holds its temperature far better. The two measures complement each other rather than overlapping.

Sealing and Ventilation Balance

This is the one important caution in draught proofing: a home still needs adequate ventilation, and over-sealing can cause problems. While sealing draughts is beneficial, a home needs some fresh air to stay healthy and to manage moisture, so the goal is to stop the uncontrolled draughts while retaining the deliberate ventilation, not to seal the home completely airtight. Over-sealing without thought can trap moisture and lead to condensation and mould, particularly in bathrooms, kitchens and bedrooms. The skill is sealing the waste while keeping the home breathing. Good draught proofing stops the draughts you do not want while preserving the ventilation you do. Telling wasteful airflow apart from deliberate ventilation is the skill that good draught proofing relies on. Sealing the first while keeping the second is exactly the skill to look for.

The most serious ventilation concern is gas appliances, which need air and must never be starved of it. Flueless gas heaters and other gas appliances need adequate ventilation to operate safely, since they consume air and produce combustion products, so any draught proofing in a home with gas heating must preserve the required ventilation, which is a genuine safety matter regulated by Energy Safe Victoria. A reputable installer is aware of this and will not seal a room in a way that compromises a gas appliance's air supply. This is the key reason draught proofing should be done thoughtfully. Where there are gas appliances, maintaining safe ventilation takes absolute priority over sealing. No saving on energy is worth compromising a gas appliance's air supply. A competent installer treats the gas appliance ventilation as a fixed requirement, not a variable. It is the one part of the job that is never traded off for a tighter seal. Safe combustion air comes before any energy saving, without exception. This is the single rule a responsible installer never bends.

Managing moisture and air quality is the other side of sensible sealing, and it is straightforward to get right. A well-sealed home should still have working exhaust fans in wet areas and a way to air the home, so that the moisture from cooking, showering and breathing is removed rather than trapped, which keeps condensation and mould at bay, a matter relevant to household health. The aim is controlled ventilation, mechanical where needed, rather than relying on draughts. A home can be both well-sealed and well-ventilated with a little thought. Balancing the sealing against proper ventilation is what makes draught proofing both effective and healthy. A home can be snug and dry without being stuffy or damp. Working exhaust fans and a way to air the home keep the moisture moving.

Victorian Energy Upgrades and Rebates

Victoria runs an energy efficiency program that can reduce the cost of eligible draught sealing, which is worth knowing about. The Victorian Energy Upgrades program, administered by the Essential Services Commission, provides discounts on a range of energy-saving improvements for homes, and weather sealing of existing homes can be an eligible activity, so the cost of qualifying draught proofing may be reduced through the program. The discount is delivered through accredited providers who participate in the program. This is a genuine, Victoria-specific way to make the work cheaper. The Victorian Energy Upgrades program is a real avenue for reducing the cost of eligible draught sealing. It is one of several activities the program supports to improve home energy efficiency. Insulation and other upgrades may be eligible under the same program.

Accessing the program means using an accredited provider, which shapes how to go about it. To receive a Victorian Energy Upgrades discount, the work must be done by, or arranged through, a provider accredited under the program, who handles the eligibility and the discount, so if you want to use the program it is worth asking installers whether they participate and what is eligible. Not every draught-proofing job or installer is part of the program, and the eligible activities and discounts are set by the scheme. Checking the current details with an accredited provider or the program is the way to be sure. Using an accredited provider is the path to a Victorian Energy Upgrades discount on eligible sealing. Without accreditation, an installer cannot deliver the program discount. So if the rebate matters to you, the provider's accreditation is the first thing to confirm. An accredited provider can also tell you exactly what is eligible.

Even without a rebate, draught proofing is cheap and pays back quickly, so the program is a bonus rather than a necessity. Because the work is so low-cost and the energy savings so reliable, draught proofing is well worth doing whether or not a discount applies, and the Victorian Energy Upgrades program simply makes eligible work cheaper still. Other home energy improvements, such as insulation, may also be eligible under the program. It is worth exploring what is available when planning home efficiency work. The rebate is a welcome reduction where it applies, on top of work that already represents excellent value. Even at full price, the comfort and savings make the job worthwhile. The rebate simply shortens an already quick payback.

What Drives Draught Proofing Pricing in Victoria

The scale of the job is the first and largest driver of cost. Sealing a single draughty door or window is a small, cheap job, while draught proofing a whole home covers many doors, windows, frame gaps and other sources, so the number of openings and the extent of the work set the broad cost. A handyman charging by the hour, or a specialist quoting a whole-home package, both price largely on the scope. The simplest jobs are well within do-it-yourself territory, while a comprehensive job is worth having done properly. So the size of the job, from one door to a whole house, mainly sets the price. A handful of problem spots is modest, while a full home is a larger but still affordable package. Either way, draught proofing sits at the cheaper end of home improvements.

The quality of the seals and the condition of the openings shape much of the rest. Good-quality, durable seals cost a little more than cheap ones but last far longer and seal better, so the products used affect both the price and the value, and a worn or poorly fitting door or window may need adjustment or repair before it can be sealed well, which adds to the work. The honest installer explains where a repair would get a better result than sealing alone. Any related home repairs can be bundled in. The quote should set out the seals, the openings covered and any repairs, so you can see what you are paying for. A clear breakdown also lets you compare two installers fairly. Two quotes for the same scope and seal quality are the only fair comparison. Headline prices alone can hide a big difference in what is actually being sealed. The scope and the seal quality are where the real comparison lies.

Where the home is and whether a rebate applies fill in the rest of the cost across Victoria. Rates are competitive across the Melbourne metropolitan area, while jobs in Geelong, Ballarat, Bendigo, the Latrobe Valley, Gippsland, Shepparton, Mildura and around the Mornington Peninsula can carry some travel, particularly for a small job. A Victorian Energy Upgrades discount, where it applies, reduces the cost through an accredited provider. The cheapest quote using poor seals is a weak saving, since they soon fail and the draughts return, meaning the job has to be redone. On draught proofing, durable seals and a thorough job matter more than the lowest price. Cheap seals that fail within a season turn a small saving into a repeat job. Durable seals fitted well are the better value over the years they last. The slightly higher upfront cost of good seals is repaid in how long they keep working. A quality seal can outlast several cheap ones, making it cheaper in the long run. Buying once and sealing well beats resealing repeatedly with poor materials. Durable seals mean the job is done properly the first time.

Value in draught proofing is comfort and savings that continue every season for very little money. Well-fitted, durable seals make a home noticeably warmer and cheaper to run, winter after winter, for a small one-off cost that is recovered through lower energy bills, which makes draught proofing one of the best-value improvements a home can have. The little saved on cheap seals is lost when they fail and the draughts return within a season. Done well, draught proofing keeps a home comfortable and efficient with no ongoing effort. The best outcome is a home that holds its warmth in winter and its cool in summer, sealed thoroughly and ventilated sensibly. That balance of comfort, efficiency and fresh air is what good draught proofing delivers. It is a small, sensible improvement that keeps giving back every season.

What to Look Out For

Because draught proofing is unlicensed, the quality of the seals and the care of the installation are what you rely on, so look at both. With no licence to fall back on, judge an installer on the quality of the seals they use and the neatness and thoroughness of their work, since cheap seals and a rushed job will not last, while good seals well fitted will seal for years. Ask what seals they use and whether they are durable, and look at the standard of finish. A thorough installer seals the whole perimeter and the other sources, not just the obvious under-door gap. On unlicensed work, the products and the care are your main guide to a job that lasts. The seals and the thoroughness tell you more than any sales pitch. A look at the products and the finish is the most honest guide to the job.

The most important thing to check is that ventilation, especially for gas appliances, is preserved, which a good installer raises themselves. A trustworthy installer is aware that a home needs ventilation and that gas appliances must not be starved of air, so be cautious of anyone who seals a home completely without a thought for fresh air or the gas heater, since over-sealing can cause condensation, mould or, with gas appliances, a genuine safety risk. The consumer protections overseen by Consumer Affairs Victoria apply to the work either way. An installer who talks about the ventilation balance is one who understands the work. Preserving safe ventilation is the one non-negotiable in any draught-proofing job. Everything else can flex, but the home's air supply cannot. A good installer holds that line without needing to be asked.

On the rebate and the claims, a little scepticism serves you well. If an installer offers a Victorian Energy Upgrades discount, it is reasonable to confirm they are genuinely accredited under the program and that the work is eligible, and to be wary of inflated claims about savings, since while draught proofing is genuinely effective, the exact saving depends on the home. Honest, realistic advice about what sealing will achieve is a good sign. A reputable installer neither oversells the savings nor cuts corners on ventilation. Checking accreditation and keeping expectations realistic protects you on both the rebate and the result. Honest figures and genuine accreditation are the marks of a trustworthy provider. A reputable installer gives realistic advice about the savings rather than overpromising.

How to Get Useful Quotes

A clear description of your home and the draughts gets you a more useful quote. Note how many doors and windows need sealing, whether they are external or internal, the rough age and type of the windows, and where you notice the worst draughts, along with any doors that stick or do not close well. Mention whether you have gas heating, so the installer can factor in the ventilation. Photos of the doors, windows and any obvious gaps help an installer gauge the job. The suburb matters for travel. The clearer the picture of your home and its draughts, the closer the quote and the better the advice.

Being clear on the scope and the seals is what makes quotes comparable. Decide whether you want a few problem spots sealed or a whole-home job, and ask each installer what seals they will use, whether they are durable, what openings and sources they will cover, and whether they address the ventilation balance, since a quick job with cheap seals and a thorough job with good ones are very different at what can look like a similar price. If you want to use the Victorian Energy Upgrades program, ask whether they are accredited. Comparing quotes for the same scope and seal quality is the only fair basis, rather than headline prices alone.

A single job posted on The Quote Yard puts your draught proofing in front of several Victorian installers at once. Weigh the replies on the same points, the seals used and their durability, the openings and sources covered, the attention to ventilation, and any rebate, so you are comparing like with like. A quote that is very cheap may use poor seals or cover only the obvious gaps, which means the draughts return and the job is wasted, while a thorough quote with good seals lasts for years. The quote worth taking uses durable seals, covers the home thoroughly, and respects the ventilation. Collecting a few quotes costs nothing and shows who will seal your home properly.

Getting It Right and Australian Consumer Law

Because the work is unlicensed, the durability of the seals and the thoroughness of the job are your main assurances, alongside any workmanship guarantee. A reputable installer uses durable seals and stands behind their work, so keeping the quote and noting what seals were used is sensible, since a good job should keep the draughts out for years before the seals need refreshing. For a small job, evident quality is enough, while for a whole-home job a workmanship guarantee adds confidence. Cheap seals that fail within a season are the thing to avoid. On draught proofing, durable products and a thorough, guaranteed job are your protection.

Where the Victorian Energy Upgrades program is involved, the accreditation and the program's terms are your safeguard, so it is worth confirming them. A discount under the program must be delivered through an accredited provider, with the eligibility and the discount handled under the program's rules administered by the Essential Services Commission, so confirming the provider's accreditation and the eligible activity is how you ensure the rebate is genuine. The savings claims should be realistic rather than inflated. Checking the accreditation protects you when a rebate is part of the deal. For program work, the provider's accreditation is the assurance the discount is legitimate.

Underneath it all sit the consumer guarantees, which apply to draught-proofing work and the materials used. The work must be carried out with due care and skill and the seals be of acceptable quality and fit for purpose, protections administered through Consumer Affairs Victoria and backed by the national framework overseen by the ACCC, while gas appliance ventilation safety is regulated by Energy Safe Victoria. Where sealing is part of wider work, it can tie into security doors and screens or coordinate with property maintenance, so the jobs can be planned together. Choose an installer using durable seals, working thoroughly and respecting the ventilation balance, and draught proofing will make your Victorian home warmer, cheaper to run and more comfortable for years.