Expert Damp Proofing Services in Bolton
Bolton’s diverse property landscape—from red-brick terraces and stone cottages to post-war semis and modern developments—faces a wide range of damp challenges. Combined with Lancashire’s wet climate and seasonal humidity, homes and businesses are frequently affected by rising damp, water ingress, and condensation. Left unchecked, these problems can cause visible interior damage, compromise structural integrity, and reduce property value.
RTC Group provides detailed damp surveys using modern diagnostic tools to identify the root cause of your moisture issues. Every treatment is customised to your building’s age, construction materials, and layout. From chemical damp proof course (DPC) injection and waterproof membranes to structural tanking and improved ventilation systems, we offer effective, durable solutions that restore and future-proof Bolton properties.
For heritage and listed buildings, we deliver sympathetic treatments that maintain structural integrity while complying with conservation guidelines. Whatever the scale of your issue, you can rely on RTC Group for guaranteed results. Learn more about our Damp Proofing services.
Rising Damp Treatment
Rising damp occurs when groundwater travels up through porous brick or stone walls due to a failed or missing damp proof course. In Bolton’s older housing stock, this is a common issue. Typical signs include tide marks, peeling paint, crumbling plaster, and musty odours.
If not treated, rising damp can compromise timber joists and flooring, damage decorative finishes, and increase indoor humidity levels. RTC Group identifies and addresses the root cause, protecting your home from further deterioration.
Chemical DPC Installation
We inject an advanced chemical damp proof course into affected walls, forming a long-lasting barrier that prevents further moisture rising. Learn more on our Rising Damp page.
Salt-Resistant Replastering
After treatment, we apply specialist salt-resistant plaster to walls, ensuring moisture control and a durable, smooth finish.
Guaranteed Protection
All rising damp treatments include robust, insurance-backed guarantees for long-term peace of mind.
Penetrating Damp & External Waterproofing
Penetrating damp is caused by external water entering through walls due to cracks, porous materials, or defective pointing. It’s particularly prevalent in exposed Bolton properties, especially those with older masonry.
External Wall Treatments
RTC Group uses breathable, weatherproof coatings to seal walls and prevent water ingress while allowing vapour to escape. Visit our External Waterproofing page for more.
Internal Tanking Systems
Our Basement Waterproofing systems provide effective moisture control for basements and lower ground spaces, stopping lateral damp and protecting your structure.
Condensation & Mould Control
Condensation is a frequent concern in Bolton homes, particularly in rooms with limited airflow or poor insulation. Warm air meeting cold surfaces leads to water droplets that promote mould growth, creating health risks and damaging surfaces.
Over time, persistent condensation results in black mould around windows, cold walls, or in corners—especially in kitchens, bathrooms, and bedrooms. RTC Group helps homeowners reduce moisture, improve air circulation, and eliminate mould.
PIV and Ventilation Solutions
We install Positive Input Ventilation (PIV) units and custom ventilation upgrades to reduce humidity and control condensation.
Mould Removal & Prevention
Our Mould Removal service includes deep cleaning of affected areas and applying long-lasting anti-mould coatings.
Woodworm Treatment
Untreated or damp timber in Bolton homes—especially in lofts, floors, and substructures—is at risk of woodworm infestation. These insects bore into timber, leaving behind exit holes and frass, and can severely weaken structural elements over time.
Safe, Targeted Treatments
Our Woodworm Treatment service includes a full assessment, chemical treatment, and timber repair or replacement where required.
Dry Rot Treatment
Dry rot is one of the most destructive timber decay fungi. It thrives in damp, unventilated spaces—such as floor voids, roof spaces, or behind plaster—and spreads quickly across timber and even masonry.
Signs include brittle, crumbly timber, a musty odour, and large fruiting bodies. If untreated, dry rot can affect structural stability.
Complete Remediation
Our Dry Rot service covers removal of infected material, treatment of surrounding areas with antifungal solutions, moisture control, and timber restoration.
Wet Rot Treatment
Wet rot is caused by ongoing exposure to moisture, typically from leaks, poor ventilation, or rising damp. Unlike dry rot, it stays localised but still significantly weakens timber.
Inspection & Repair
RTC Group’s Wet Rot specialists identify the moisture source, remove decayed wood, and restore the affected areas to structural safety.
Why Choose RTC Group in Bolton?
Bolton residents choose RTC Group for our unmatched expertise, local knowledge, and dedication to customer care. With decades of hands-on experience treating homes and buildings across Greater Manchester and Lancashire, we tailor every service to suit each property’s construction and condition.
Our team is PCA-certified and TrustMark accredited, and every treatment is guaranteed to last. We take pride in clear communication, respectful on-site conduct, and solutions that truly last. Whether you need rising damp treatment, rot repair, or a full waterproofing system, RTC Group delivers results you can trust.
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35+ years of local experience
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Fully certified, award-winning technicians
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Heritage property expertise
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Tailored, building-specific solutions
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Insurance-backed guarantees
