Damp Proofing Services for Manchester Homes & Buildings
Manchester’s historic architecture, industrial heritage, and ever-changing weather conditions mean that damp is a frequent issue across all property types. At RTC Group, we specialise in identifying the root causes of damp and applying targeted treatments that suit each building’s structure and location.
From converted mills in Ancoats to Edwardian semis in Sale and Hulme, we tailor our damp proofing solutions to each property’s age, materials, layout, and moisture exposure. Whether you’re facing condensation issues in a ground-floor flat or chronic rising damp in your period property, we offer a full spectrum of damp control services designed to deliver permanent results.
Our services range from advanced chemical DPC injections to full membrane installations and structural waterproofing for basements. Discover more about our Damp Proofing services.
Rising Damp Treatment
Rising damp is a common problem in Manchester’s older housing stock, especially properties built before damp proof courses were standard. Over time, brick and mortar act like a sponge, drawing groundwater up through the walls. The result? Peeling wallpaper, visible tide marks, musty smells, and deteriorating plaster—signs you shouldn’t ignore.
Chemical Damp Proof Course (DPC)
RTC Group uses cutting-edge DPC injection technology to form a barrier that prevents further moisture ingress from the ground. Our approach is minimally invasive but highly effective in stopping rising damp.
Salt-Resistant Replastering
After installing a chemical DPC, we remove contaminated plaster and apply breathable, salt-resistant plaster systems to ensure lasting protection and a smooth, redecorated finish.
Long-Term Protection
All rising damp work includes long-term, insurance-backed guarantees to give you total peace of mind. Learn more on our Rising Damp service page.
Penetrating Damp & Waterproofing Solutions
Penetrating damp is caused when water breaches your walls through cracks, defective render, porous bricks, or failing guttering. In Manchester’s climate—characterised by steady rainfall and frequent storms—penetrating damp is a growing concern for both older and modern buildings.
External Waterproofing
We apply breathable yet highly water-resistant coatings to external masonry, preventing further ingress while allowing moisture inside the wall to evaporate. Our External Waterproofing treatments preserve both structure and appearance.
Interior Tanking Systems
For below-ground spaces like cellars and basements, our tanking systems block lateral damp from the surrounding earth. See our Basement Waterproofing options to learn more.
Condensation & Mould Control
Manchester’s urban housing and frequent temperature fluctuations often cause condensation issues, which can lead to mould and damp odours in homes. These problems are most common in bathrooms, kitchens, and bedrooms, where moisture builds up with insufficient ventilation.
Positive Input Ventilation (PIV)
Our range of ventilation systems, including PIV units, improves airflow throughout your property. These systems lower internal humidity levels and eliminate the conditions mould needs to grow.
Anti-Mould Treatments
Once mould is removed, we apply specialist coatings that resist regrowth, ensuring your walls remain clean and safe. Visit our Mould Removal page for treatment details.
Woodworm Treatment
Untreated or poorly ventilated timber in lofts, floor voids, and older joists are especially vulnerable to woodworm infestations in Manchester homes. These beetles lay eggs that hatch into larvae, which burrow into the wood and compromise its structural strength.
Expert Woodworm Eradication
RTC Group’s Woodworm Treatments involve targeted chemical application to infected areas. We also inspect and, if needed, replace damaged timber to ensure long-term structural safety.
Dry Rot Treatment
Dry rot is a destructive and highly aggressive fungus that feeds on damp timber and spreads rapidly in areas with poor ventilation and high moisture levels. It thrives in concealed spaces like subfloors, wall voids, and roof structures—often going unnoticed until significant damage has already occurred. The fungus can weaken wooden beams, joists, and supports, and even pass through masonry to reach adjacent timber, making it one of the most serious threats to a property’s structural integrity. If not identified and treated promptly, dry rot can compromise floors, ceilings, and entire sections of your building, leading to extensive repair costs and ongoing safety concerns.
Dry Rot Remediation
Our Dry Rot service involves identifying the moisture source, removing decayed material, applying antifungal treatments, and restoring structural elements with treated replacements.
Wet Rot Treatment
Wet rot occurs when wood remains damp for prolonged periods, often as a result of hidden plumbing leaks, rising damp, faulty gutters, or persistent condensation in poorly ventilated spaces. It typically affects timber that is in regular contact with moisture-prone areas—such as skirting boards, floor joists, or window frames—especially where airflow is restricted and damp conditions go unnoticed.
Unlike dry rot, wet rot tends to stay confined to the immediate area of moisture exposure, but it still leads to significant weakening and decay of the affected wood. The timber often becomes soft, spongy, and discoloured, losing its structural strength over time. If left untreated, wet rot can lead to costly repairs and further moisture-related problems in your property.
Comprehensive Wet Rot Repair
We investigate the root moisture problem, treat all affected wood, and replace sections beyond repair. Learn more on our Wet Rot page.
Why Choose RTC Group in Manchester?
Homeowners, landlords, and commercial clients across Greater Manchester choose RTC Group for expert advice, friendly service, and trusted results. We pride ourselves on professional care, technical excellence, and thorough aftercare for every job we complete.
-
Over 35 years of local expertise across Manchester and the North West
-
PCA-certified technicians and TrustMark accredited work
-
Insurance-backed guarantees for all damp, timber, and rot treatments
-
Tailored solutions for all property types, including historic and commercial buildings
-
Clean, efficient and respectful work practices with minimal disruption
