Damp proofing services
Choose the right starting point for your home: diagnosis first, then a treatment matched to the source of moisture and the affected materials.
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Start with what you have noticed
A damp wall, recurring mould and a wet window can look connected without sharing the same cause. Tell us where the problem appears and what changes before it becomes worse. A mark following rainfall calls for different checks from moisture collecting in a closed bedroom overnight. You do not need to decide on a treatment before getting in touch.
The free homeowner damp survey includes inside and outside inspection, moisture readings, an honest recommendation and a written quotation for work needed. Keep photographs of intermittent marks and leave damaged surfaces visible where practical. This gives the inspection useful context without asking you to open up walls or disturb finishes.
Match the service to the diagnosis
Rising damp treatment considers moisture moving from the ground through masonry. DPC injection is the barrier component where a new course is appropriate; the condition of plaster and outside levels also matter. Penetrating damp treatment traces water entering through the building fabric so the relevant defect can be addressed before making good indoors.
Condensation control looks at indoor moisture, extraction, air movement and cold surfaces. Mould removal considers the growth and affected materials alongside the conditions that allow it to return. If you have found small holes or dust in timber, the woodworm information explains general identification and treatment options; ask separately about service availability and timber assessment arrangements.
Masonry water-repellent treatment
Masonry protection cream can reduce rainwater absorption by suitable porous masonry. Damp Pro and Co carries out water-repellent treatments as part of penetrating damp work where appropriate. The decision starts with wall condition and the source of water, not a coating applied over an unexplained indoor patch.
Rising damp treatment
Diagnosis and lasting treatment of ground moisture rising through walls, backed by a 20-year guarantee.
Damp proof course (DPC) installation
New chemical damp proof course injected into failed or bridged walls, with specialist replastering.
Penetrating damp treatment
Tracing and stopping rainwater getting in through walls, pointing, gutters and openings.
Condensation control
Ventilation and humidity solutions that stop streaming windows, black spotting and damp air.
Mould treatment
Safe removal of black mould and treatment of the cause, so it does not come back.
Woodworm treatment
Identification, survey and treatment options for insect-affected timber. Ask about service availability.
Free damp survey
A no-obligation survey by a trained technician, with clear findings and a written recommendation.
Mould survey
An inspection should explain why mould grows in a particular place, how far affected finishes extend and what needs checking before removal. Start with the moisture and the material, rather than a cleaner.
Pre-purchase damp survey
A damp remark in a valuation or house survey deserves a clear next step. Before instructing a specialist, establish which questions need answering, what access is available and who needs the findings.
Basement tanking
A wet cellar needs an assessment of the structure and water route before a waterproofing method is selected. Tanking and cavity drainage work differently, and neither should be specified from a stain alone.
Positive input ventilation
A PIV unit introduces filtered air to help improve air exchange in a suitable home. Choosing positive input ventilation starts with checking the building, moisture sources and existing ventilation, not buying a unit by floor area alone.
Dry rot treatment
Suspected fungal decay needs attention to the moisture feeding it and the condition of the timber. Dry rot treatment is a diagnosis and repair question, not simply a choice of liquid to apply to a damaged surface.
Wood rot repair
Wood rot repair starts by establishing why timber stayed wet and how much strength or usable material has been lost. Drying, treatment and replacing damaged components are separate parts of the decision.
Wall tie replacement
Wall ties connect the two leaves of a cavity wall. Suspected corrosion or failure needs assessment of the wall and its construction before repair is proposed; cracking alone does not establish the diagnosis.
Landlord damp and mould
Landlords and letting agents need a clear record of reported mould, a timely assessment of the moisture source and a practical plan for repairs. Start with the property and the concern raised, not an assumption about how the tenant lives.
Commercial damp proofing
A damp problem in business premises needs a scope suited to the building and its use. Establish the moisture source, safe access and who can authorise investigation before planning repairs around staff, visitors or tenants.
For address-specific regional information, see north London damp proofing enquiries or damp proofing near Heathrow.
Discuss your home with Seth
Damp Pro and Co is based in Ruislip and covers roughly a 12-mile radius across north-west London and South Bucks. Follow the areas hub for local information and existing town treatment pages, or use the enquiry form to describe your concern. Give the full address and affected rooms so survey arrangements can be discussed. A written recommendation lets you understand the proposed work before deciding how to proceed.
Worried about damp? Book your free survey today.
Open 24 hours. Over 30 years' experience. 20-year guarantee on completed DPC work.