Damp Proofing in North London
London’s housing stock is full of older properties, high external ground levels and basements – which is why damp problems are so common in London homes. At London Leak Repairs we don’t just cover over damp patches; we identify why the wall is damp and install the right damp proofing system so it stays dry.
Whether it’s rising damp, penetrating damp or damp made worse by a previous leak, we provide survey-led damp proofing in London for homeowners, landlords and managing agents.
Why damp proof your property?
- Stop paint bubbling, flaking plaster and salt deposits
- Protect timber joists and floorboards from rot
- Make basements and lower-ground rooms usable
- Improve air quality and reduce mould growth
- Protect the value of London property
Our Damp Proofing Services
1. Damp Surveys & Diagnosis
We start by confirming the source of moisture – is it rising damp from the ground, penetrating damp through the wall, or moisture made worse by condensation or an old leak? Getting this right avoids unnecessary work.
2. Rising Damp Treatment
Where the original DPC is missing, bridged or failed, we install a modern damp proof course and remove salt-contaminated plaster. We then re-plaster with a specification suitable for damp walls so it doesn’t “bleed through” again.
3. Penetrating Damp Solutions
If water is getting through solid walls, cracked render, high external ground levels or failed pointing, we combine building repairs with internal protection to stop lateral moisture movement.
4. Cavity Drain & Basement Damp Proofing
For basements and lower-ground rooms we can install cavity drain membranes or tanking systems – ideal in London where external levels can’t always be lowered.
5. Condensation & Ventilation Improvements
A lot of “damp” in London flats is actually condensation. We can supply and install ventilation/condensation control to reduce surface mould and keep walls dry.
6. Replastering & Making Good
After treatment we apply specialist replastering designed for previously damp or salt-laden walls, and make good so your decorator can finish.
Damp Problems We Commonly See in London
- Tide marks and salt crystals on ground floor walls
- Plaster blowing off chimney breasts and party walls
- Damp behind built-in joinery or wardrobes
- Wet basements and vaults
- Black mould in poorly ventilated rooms
- Damp following a historic plumbing or roof leak
Because we also offer leak detection and repair, we can rule out (or fix) an active leak before we install any damp proofing.
Book Damp Proofing in London
Need Damp Proofing in London today? Get in touch to discuss the issue and arrange a visit.