Rising Damp Assessment and Repairs QLD 2026 - Complete Pricing Guide

Rising Damp Assessment and Repair Costs in Queensland for 2026

Rising damp is one of the most misdiagnosed and mistreated building defects in Queensland, with the term frequently applied to any moisture problem on an internal wall regardless of whether the moisture is actually rising from the ground through capillary action or entering the wall through an entirely different mechanism such as lateral damp (water penetrating the wall from outside due to poor drainage or waterproofing failure), condensation (moisture from the air condensing on cool wall surfaces), plumbing leaks behind the wall, or bridging of the existing damp-proof course by raised garden beds, paths, or render that covers the DPC and allows moisture to bypass it. The correct diagnosis of the moisture source is the single most important step in the treatment process, because the treatment for rising damp (installing a new damp-proof course) will not resolve a moisture problem that is caused by a different mechanism, and the homeowner will have paid for an expensive treatment that fails to address the actual issue.

Genuine rising damp occurs when the damp-proof course (DPC) that was installed during the building's construction has failed, deteriorated, or been bridged, allowing groundwater to be drawn up into the wall by the capillary forces that exist within the porous structure of brick, concrete block, and stone masonry. The height to which moisture can rise depends on the porosity of the masonry, the rate of evaporation from the wall surface, and the availability of groundwater at the base of the wall, but it rarely exceeds 1.0 to 1.5 metres above ground level because the rate of evaporation from the exposed wall surface increases with height and eventually equals the rate of capillary rise, creating an equilibrium. The dissolved salts (primarily sodium chloride, calcium sulphate, and magnesium sulphate) that are carried upward with the moisture are deposited within the wall as the water evaporates, and these salts are hygroscopic (meaning they absorb moisture from the air), which can cause the wall to remain damp even after the rising moisture source has been treated, until the salt-contaminated render and plaster are removed and replaced.

The building stock most affected by rising damp in Queensland includes pre-1950s masonry homes (particularly in the older suburbs of Brisbane, Ipswich, and Toowoomba) where the original DPC was a layer of slate, lead, or bitumen-impregnated felt that has deteriorated over decades of service, and post-war brick and block construction where the DPC was a polyethylene sheet or bitumen membrane that may have been damaged during construction or has deteriorated at the overlap joints. Newer construction built to current building standards with a properly installed polyethylene DPC and adequate ground clearance should not experience rising damp, but it can occur if the DPC is bridged by raised external ground levels, garden beds built against the wall, or render applied below the DPC level.

Professional Damp Assessment

A professional rising damp assessment is the essential first step before any treatment is commenced, because the assessment determines whether the moisture problem is genuinely rising damp or one of the several other moisture conditions that can produce similar visual symptoms. A qualified damp assessor uses a combination of visual inspection, moisture meter readings (using both pin-type and non-invasive meters from brands like Protimeter, Tramex, and Wagner), thermal imaging (using FLIR or Testo cameras to map the moisture distribution on the wall surface), salt analysis (testing the wall for the presence of hygroscopic salts that indicate rising damp), and ground moisture assessment to build a comprehensive picture of the moisture source, the extent of the damage, and the appropriate treatment.

The assessment process typically begins with a visual inspection of the affected walls, noting the height and distribution of the damp staining, the condition of the paint and render, the presence of salt crystallisation (white powdery deposits on the wall surface called efflorescence, or sub-surface crystallisation called cryptoflorescence that causes the render to break away from the masonry), and any external factors that could be contributing to the moisture (such as high ground levels, garden beds against the wall, blocked sub-floor ventilation, or missing or damaged downpipes that direct rainwater against the wall). The moisture meter readings are taken at multiple heights on the affected wall to map the moisture profile, which helps distinguish between rising damp (where moisture readings are highest at the base of the wall and decrease with height) and other moisture sources (where the moisture pattern may be uniform, localised, or highest at a point above the base).

A professional damp assessment in Queensland costs $300 to $800 depending on the size of the property, the number of walls assessed, and the detail of the report provided. The assessment should result in a written report that identifies the moisture source, the extent of the damage, the recommended treatment method, an estimate of the treatment cost, and the expected outcome. A damp specialist who recommends treatment without performing a thorough assessment, or who diagnoses rising damp based solely on visual inspection without moisture meter readings and salt analysis, may not be providing a reliable diagnosis. Our water leak detection guide covers the related discipline of detecting moisture from plumbing leaks that can be confused with rising damp.

Chemical Damp-Proof Course Injection

Chemical DPC injection is the most common and cost-effective treatment for rising damp in Queensland because it creates a new damp-proof barrier within the existing wall without requiring the wall to be partially demolished, which preserves the structural integrity and the external appearance of the building. The process involves drilling a series of holes into the mortar course at the DPC level (typically 150mm above the external ground level), spacing the holes at 100 to 150mm centres, and injecting a silicone-based or silane/siloxane-based water repellent solution into the holes under low pressure or by gravity feed. The injected solution penetrates the masonry surrounding each hole, forming a continuous water-repellent barrier across the width and length of the wall that prevents moisture from rising above the injection level.

The injection products used by Queensland damp specialists include silicone cream (a thixotropic silicone-based product that stays in the injection hole and penetrates the surrounding masonry by capillary action), silane/siloxane solution (a liquid that is injected under low pressure and penetrates deep into the masonry), and resin-based products that fill the pores of the masonry to create a physical barrier. Leading DPC injection product brands include Dryzone (by Safeguard Europe), Stormdry (by Remmers), Aridion, and Tech-Dry, with each product having different application methods, penetration characteristics, and performance specifications. The choice of injection product depends on the wall construction (brick, block, or stone), the wall thickness, and the porosity of the masonry.

Chemical DPC injection costs $80 to $150 per linear metre of wall in Queensland, with the cost reflecting the number of holes drilled, the volume of product injected, and the wall thickness. A single-leaf brick wall (110mm thick) requires injection from one side only, while a double-leaf cavity wall requires injection of both leaves, and a solid double-brick wall (230mm thick) may require injection from both sides to achieve full penetration across the wall thickness. The total cost for chemical DPC injection on a typical Queensland home with 20 to 40 linear metres of affected wall ranges from $1,600 to $6,000 for the injection work alone, with the replastering and repainting adding substantially to the total project cost. The injection work is typically completed in one to two days, with the treated wall requiring several weeks to dry out before replastering can commence.

Physical DPC Installation

Physical DPC installation involves cutting a horizontal slot through the full thickness of the wall at the DPC level and inserting a physical barrier (typically a high-density polyethylene sheet or a stainless steel strip) that creates an impermeable barrier that moisture cannot cross. Physical DPC is the most effective rising damp treatment because it creates a complete barrier rather than relying on chemical penetration into the masonry, but it is more expensive, more disruptive, and carries a higher risk of structural cracking during the cutting process. The slot is cut using a chain saw (for brick walls) or a diamond-tipped circular saw, and the DPC membrane is inserted into the slot, which is then mortared closed.

Physical DPC installation costs $150 to $300 per linear metre in Queensland, making it approximately double the cost of chemical injection. The method is recommended for walls where chemical injection is unlikely to be effective (such as very thick stone walls, rubble-filled walls, or walls where the masonry is so saturated that the injection product cannot penetrate adequately), for walls where the rising damp is severe and a guaranteed barrier is required, and for heritage buildings where the wall construction makes chemical injection unpredictable. Physical DPC is less commonly used than chemical injection in Queensland because the majority of affected homes have standard brick or block construction where chemical injection is effective and more cost-efficient.

Replastering After Rising Damp Treatment

The salt-contaminated render and plaster on walls affected by rising damp must be removed and replaced after the DPC treatment is installed, because the hygroscopic salts deposited within the render will continue to attract moisture from the air even after the rising moisture source has been cut off. If the salt-contaminated render is left in place, the wall will remain damp and the visual symptoms of rising damp will persist, leading the homeowner to believe the treatment has failed when in fact the DPC is working correctly but the residual salts are maintaining the moisture. The replastering scope involves removing all render from the affected area to a height of at least 300mm above the highest point of visible damp staining, cleaning the exposed masonry to remove surface salts, applying a salt-inhibiting primer or render additive, and replastering with a breathable render system that allows the wall to continue drying while preventing the salts from migrating to the new surface.

The cost of render removal and replastering after rising damp treatment ranges from $50 to $100 per square metre in Queensland, with the area typically extending 300mm above the damp line on all affected walls. For a typical room with 6 linear metres of affected wall and a damp height of 1 metre (requiring replastering to 1.3 metres), the replaster area is approximately 8 square metres and the cost is $400 to $800 per room. Replastering the entire affected area of a typical Queensland home costs $1,500 to $5,000 depending on the number of rooms and the total wall area involved. The replastered walls must be allowed to dry for several weeks (typically four to eight weeks depending on the wall thickness and the season) before painting, and a breathable masite or lime-based paint should be used rather than a non-breathable acrylic paint that would trap moisture within the wall. Our waterproofing services guide covers the render and membrane systems used for moisture management on building exteriors.

Drainage and Ground Management

Addressing the ground conditions around the building is an essential complement to the DPC treatment, because reducing the amount of moisture in the soil at the base of the wall reduces the driving force behind rising damp and improves the long-term effectiveness of the treatment. Common ground management measures include lowering external ground levels to restore the minimum 150mm clearance below the DPC (which may have been lost over time as garden beds, paths, and paving have been added against the wall), installing drainage channels or agricultural drains along the wall base to divert surface water away from the building, ensuring all downpipes discharge into the stormwater system rather than spilling water at the base of the wall, and removing garden beds and vegetation that have been placed against the wall and are holding moisture against the masonry.

The cost of external drainage improvements ranges from $500 to $3,000 depending on the scope, with simple ground level adjustments and garden bed relocation at the lower end and installation of subsoil drainage systems at the upper end. Our French drain and subsoil drainage guide covers the installation of agricultural drainage systems that manage subsurface water around buildings. For stumped Queensland homes, improving the sub-floor ventilation by clearing blocked vents, installing additional vents, or adding mechanical ventilation fans ($300 to $2,000) can significantly reduce the moisture level in the sub-floor space and the walls above it.

Queensland-Specific Considerations

Queensland's climate and building stock create specific rising damp conditions that differ from the southern states where rising damp is more commonly discussed. The warm temperatures across Queensland accelerate evaporation from wall surfaces, which means that rising damp in Queensland may not reach as high on the wall as it would in cooler climates (where slower evaporation allows the moisture to rise further before reaching equilibrium), but the faster evaporation also concentrates the salts more rapidly, which can cause more severe salt damage to the render and masonry in a shorter period. The seasonal rainfall pattern, with heavy summer rain followed by dry winter months, creates a cycle of high and low ground moisture that can cause the visible symptoms of rising damp to fluctuate with the seasons, being most apparent during and immediately after the wet season when ground moisture levels are highest.

The Queenslander-style homes that are iconic to the state's building heritage are built on elevated timber stumps with timber-framed walls, and while the raised construction provides excellent sub-floor ventilation that helps manage moisture, the ground-level additions and enclosures that have been added to many Queenslanders over the decades (converting the under-house area to living space, laundry, or garage) can create rising damp conditions in the new ground-level masonry walls that were not part of the original construction. These ground-level additions are particularly susceptible to rising damp because they often have inadequate DPC installation, reduced sub-floor ventilation (due to the enclosure of the original open sub-floor space), and direct contact with the ground moisture that the original raised construction was designed to avoid.

The Queensland Building and Construction Commission requires building work to comply with the National Construction Code, which mandates DPC installation in all masonry construction. The Australian Building Codes Board publishes the NCC requirements, and Standards Australia publishes the relevant standards including AS 2904 (Damp-proof Courses and Flashings) that specify the DPC material requirements. Consumer protection under Australian Consumer Law, enforced by the Australian Competition and Consumer Commission, applies to rising damp treatment services, and the Queensland Government provides consumer guidance on building repairs and trade engagement. Worksafe Queensland requirements apply to the treatment work, particularly where confined space access is required for sub-floor work.

Misdiagnosis and Common Mistakes

Rising damp is one of the most frequently misdiagnosed building moisture problems in Queensland, and incorrect diagnosis leads to expensive treatments that do not fix the actual problem. Industry estimates suggest that up to 40 percent of properties diagnosed with rising damp by non-specialist operators actually have a different moisture source (lateral penetration, condensation, plumbing leaks, or subfloor ventilation deficiency) that requires a completely different and often much cheaper solution. The most common misdiagnosis is treating lateral damp (water entering the wall horizontally from soil banked above the DPC level) as rising damp; the fix for lateral damp is lowering the soil level and improving drainage at $200 to $800, while the chemical DPC injection treatment prescribed for rising damp costs $3,000 to $15,000 and does nothing to prevent lateral water entry. Another frequent error is diagnosing rising damp in a Queenslander home on stumps where the subfloor ventilation is inadequate, causing moisture to condense on the underside of the floor and migrate into the lower walls; the solution is improving the subfloor ventilation with additional vents or a mechanical fan ($300 to $1,200) rather than injecting a DPC that the home's construction does not require.

To protect yourself from misdiagnosis, insist that the assessor uses a calibrated pin-type or capacitance moisture meter to take readings at multiple heights on each affected wall (at 100mm, 300mm, 600mm, 900mm, and 1,200mm from the floor) and records the readings in a written report. True rising damp produces a characteristic moisture profile: the highest readings are at the base of the wall (100 to 300mm), decreasing progressively as you move up the wall, with the readings dropping to normal (dry) levels above the maximum capillary rise height of approximately 1,200mm. If the moisture readings are highest at mid-wall height or are concentrated on one wall rather than distributed around the building, the moisture source is unlikely to be rising damp and further investigation is needed before any treatment is specified. A reputable damp specialist will welcome your request for a second opinion and will provide their moisture data and report for you to share with the second assessor. Any operator who pressures you to commit to treatment immediately without allowing time for a second opinion should be treated with extreme caution, because their diagnosis may not withstand independent scrutiny.

Heritage and Older Buildings

Rising damp treatment in heritage-listed and older buildings in Queensland requires particular care to preserve the heritage character and fabric of the building while effectively managing the moisture problem. Heritage buildings often have stone or rubble masonry walls that are thicker and more porous than modern brick or block construction, original lime-based renders and mortars that perform differently from modern cement-based products, and architectural features (such as decorative mouldings, cornices, and rendered details) that can be damaged by aggressive treatment methods. The heritage approach to rising damp treatment prioritises lime-based renders and mortars (which are vapour-permeable and compatible with the original construction), careful chemical injection at pressures that do not damage the historic mortar joints, and external drainage improvements that manage the moisture source without altering the heritage streetscape.

The cost of heritage-sensitive rising damp treatment is typically 20 to 50 percent higher than standard treatment because of the additional care required, the use of specialist lime-based products, and the potential need for heritage consultant input on the treatment specification. Heritage-listed properties may require approval from the Queensland Heritage Council before external works or changes to the building fabric can proceed, and the treatment specification should be prepared in consultation with a heritage architect or building consultant to ensure compliance with the heritage listing requirements. The older suburbs of Brisbane (such as Paddington, Red Hill, Auchenflower, and New Farm), Ipswich, and Toowoomba have significant concentrations of heritage masonry buildings that are susceptible to rising damp due to their age and original DPC technology.

Rising Damp and Hot Water System Installations

Properties with rising damp issues that are also replacing or installing a hot water system should coordinate the two projects to avoid conflicts between the rising damp treatment and the hot water system installation. Hot water systems installed at ground level against external walls (which is the standard configuration for electric storage and heat pump systems in Queensland) can contribute to localised moisture accumulation at the base of the wall through condensate discharge, temperature and pressure relief valve drainage, and splash from rainfall hitting the system. The concrete pad beneath the hot water system should be graded to fall away from the wall at a minimum slope of 1 in 50, and the condensate and TPR valve discharge should be directed to a stormwater drain or soakaway at least 300mm from the wall rather than being allowed to pool at the base of the wall where it feeds directly into the rising damp zone.

Where rising damp treatment involves injection of a chemical DPC along the base of an external wall, the hot water system may need to be temporarily relocated to allow the damp specialist to access the full wall length for injection drilling, and the system should be repositioned after treatment with appropriate drainage provisions to prevent future moisture accumulation. The temporary disconnection and reconnection of the hot water system costs $200 to $400 and should be performed by a licensed Queensland plumber. If the hot water system is due for replacement within the next two to three years (electric storage systems over 8 years old and gas systems over 10 years old are approaching end of life), consider replacing the system at the same time as the rising damp treatment so the new system can be positioned and plumbed with proper drainage from the outset. A heat pump hot water system produces condensate during operation (5 to 15 litres per day in Queensland's humid climate), and if this condensate drains against the base of the wall, it maintains a constant moisture source that can reactivate damp even after a successful chemical DPC injection.

Saving Money on Rising Damp Treatment

The single biggest way to save money on rising damp treatment is to catch the problem early before the salt contamination has penetrated deeply into the wall and the plaster damage has spread across a large area. A wall where rising damp has been active for two years may need 10 square metres of replastering at $80 to $150 per square metre ($800 to $1,500), while the same wall caught within six months may need only 3 to 4 square metres ($240 to $600), saving $500 to $900 on the replastering alone with no change to the injection cost. If your building inspector or pest inspector mentions damp at the base of a wall during a routine inspection, act on it promptly rather than waiting for visible damage to worsen. Getting two or three quotes from specialist damp operators (not general builders or painters) ensures you receive competitive pricing from people who will correctly diagnose the problem, because an incorrect diagnosis leads to wasted money on treatments that do not address the actual moisture source.

Compare the total project cost, not just the injection price per metre. Some operators quote a low per-metre injection rate but charge separately for drilling, replastering preparation, waste removal, and site cleanup, while others provide an all-inclusive price that covers every stage from assessment through to final painting. Ask each quoting operator to specify exactly what is included and what is excluded so you can compare on a like-for-like basis. If only one or two walls are affected, treating those walls now and monitoring the remaining walls over the next 12 months is a reasonable approach that avoids paying for preventive treatment on walls that may not need it. However, if the assessment shows moisture readings are elevated across multiple walls, treating all affected walls in a single visit saves on mobilisation costs ($200 to $400 per visit) compared to treating walls individually over multiple visits.

Rising Damp vs Other Moisture Problems: How to Tell the Difference

Distinguishing rising damp from other moisture sources is essential because the treatment for each is different, and applying the wrong treatment wastes money and leaves the problem unresolved. Rising damp produces a characteristic pattern: moisture and salt damage concentrated at the base of the wall, extending upward in a roughly horizontal band to a maximum height of about 1.2 metres, with a visible tide mark where the damp zone meets the dry wall above. The damage is persistent and does not fluctuate with the weather. Condensation, by contrast, produces water droplets on cold surfaces (windows, external walls, mirrors) and tends to appear during cold, humid weather and disappear when conditions change, and it is often worst in bathrooms, kitchens, and bedrooms where moisture is generated by showering, cooking, and breathing overnight. Condensation does not produce salt deposits on the wall surface.

Lateral damp (water entering through the wall from outside due to defective rendering, poor drainage, or soil banked against the wall above the DPC level) can mimic rising damp but is caused by water penetrating horizontally rather than rising vertically. Lateral damp is common in Queensland homes where garden beds have been built up against the external walls over time, raising the soil level above the original DPC and allowing water to bypass it. The fix for lateral damp is often as simple as lowering the soil level to 150mm below the DPC and improving the surface drainage, which costs $200 to $800 compared to $3,000 to $15,000 for a full rising damp treatment. If the moisture investigation also reveals a burst pipe or leaking supply line near the affected wall, repairing the pipe may resolve the moisture source entirely without any DPC treatment. A qualified damp assessor uses a moisture profile (measuring moisture content at different heights up the wall) to distinguish between rising damp, lateral damp, and condensation. Rising damp shows highest readings at the base, decreasing upward. Lateral damp shows elevated readings at the height of the external moisture source. Condensation shows elevated surface readings but normal readings within the wall depth.

Queensland Soil Types and Rising Damp Risk

The soil type beneath and surrounding a building directly influences rising damp risk because different soils hold and transmit moisture differently. Queensland's reactive black clay soils (found across western Brisbane suburbs like Kenmore, Chapel Hill, and Springfield, through the Ipswich corridor, and across much of the Darling Downs) are particularly problematic because they retain large volumes of water during the wet season, maintaining prolonged contact between moisture and the base of the building. These clay soils also undergo significant volume changes between wet and dry conditions, creating ground movement that can crack mortar joints, open gaps at the wall-to-footing junction, and damage existing DPC materials, all of which allow moisture to bypass the damp-proofing and enter the wall. Homes built on reactive clay in Queensland are more likely to need rising damp treatment than identical homes on sandy or loamy soils.

Sandy coastal soils along the Gold Coast, Sunshine Coast, and Moreton Bay have lower rising damp risk because sand drains freely and does not hold water against the building for extended periods. However, homes in low-lying coastal areas with high water tables can still experience rising damp because the permanent water level in the soil may be close to or above the footing level, maintaining constant capillary contact regardless of the soil drainage rate. The red volcanic soils found around Toowoomba and the Atherton Tablelands are moderately well-draining but can develop hardpan layers that trap water beneath the surface, creating localised rising damp problems in buildings where the footing sits on or near the hardpan layer. Understanding the soil type at your property helps your damp specialist select the most effective treatment approach, because the injection rate (the amount of chemical injected per metre) and the drainage recommendations vary depending on how the surrounding soil behaves in wet conditions.

Regional Rising Damp Costs Across Queensland

Rising damp treatment costs across Queensland reflect the regional availability of damp specialists, the building stock characteristics, and the local market conditions. Greater Brisbane has the most damp treatment specialists and the most competitive pricing, with chemical DPC injection costing $80 to $130 per metre and comprehensive treatment packages (injection, replastering, and painting) costing $3,000 to $12,000 for a typical affected area. The Gold Coast and Sunshine Coast have fewer dedicated damp specialists than Brisbane, and some Brisbane-based operators service these areas with travel charges. Toowoomba has a significant stock of older masonry homes that are susceptible to rising damp, and the area is served by both local operators and Brisbane-based specialists.

Regional Queensland centres including Townsville, Cairns, Mackay, and Rockhampton have very limited dedicated rising damp treatment services, and homeowners in these areas may need to engage a South East Queensland-based specialist to travel to the property for assessment and treatment. The travel component adds $300 to $1,000 to the project cost depending on the distance, but the specialist expertise is essential for achieving a correct diagnosis and effective treatment. The tropical Queensland climate in Cairns and Townsville creates high ground moisture levels during the wet season that can exacerbate rising damp in susceptible buildings, and the salt-laden air in coastal areas can contribute additional salt contamination to already affected walls. For properties with both rising damp and drainage issues, a coordinated approach that addresses both the surface water drainage and the rising damp treatment delivers the best outcome.

What to Look Out For in Rising Damp Quotes

A rising damp treatment quote should be based on a thorough assessment that includes moisture meter readings, visual inspection, and an explanation of the diagnosis. The quote should specify the treatment method, the injection product brand and type (for chemical DPC), the linear metres of wall to be treated, the replastering scope and area, the drying time expected before replastering, the painting specification, the warranty period and terms, and the total cost including all stages of the work. Be cautious of operators who provide a quote without performing a detailed assessment, who diagnose rising damp based solely on visual inspection, or who pressure you into signing a contract immediately without allowing time to obtain a second opinion.

The warranty on rising damp treatment is an important consideration because it provides assurance that the treatment will be effective over the long term. Chemical DPC injection warranties typically range from 10 to 30 years, with reputable operators offering 20-year or lifetime guarantees backed by the product manufacturer. Physical DPC warranties are typically lifetime because the physical barrier does not degrade. Confirm that the warranty covers both the DPC injection and the replastering (because replaster failure is the most common post-treatment issue), and check whether the warranty is backed by insurance or a guarantee scheme that will honour the warranty if the operator ceases trading.

Post your rising damp assessment or treatment on The Quote Yard to connect with qualified damp specialists across Queensland. For related services, our plumbing services guide covers general plumbing costs, our waterproofing services guide covers wet area and external waterproofing, our French drain guide covers subsoil drainage, our water leak detection guide covers moisture investigation, and our laundry plumbing guide covers moisture management in laundry areas.

Insist that any rising damp quote is based on a proper assessment that includes calibrated moisture meter readings taken at multiple heights on each affected wall (not just a visual inspection), and ask the operator to provide the moisture reading data as part of their report so you can compare the before-treatment readings with the post-treatment readings to verify the treatment has worked. A rising damp quote of $2,500 based solely on a visual inspection from an operator who spent 15 minutes on site is far less reliable than a $4,000 quote based on a two-hour assessment with moisture profiling, salt analysis, and a written report explaining the diagnosis. The assessment itself typically costs $200 to $500 and should be deductible from the treatment cost if you proceed with the same operator. Be extremely cautious of operators who diagnose rising damp and quote treatment on the first visit without allowing you time to obtain a second opinion, because rising damp is one of the most commonly misdiagnosed building moisture problems, and operators who profit from the treatment have a financial incentive to diagnose rising damp whether it is present or not. Getting an independent assessment from a second damp specialist ($200 to $500) before committing to a treatment costing $5,000 to $15,000 is a small investment that can prevent you paying thousands for treatment of a problem you may not have.