Damp Proofing Specialists in Wandsworth (SW18)
Professional damp proofing specialists in Wandsworth, South West London.
Why Choose All Well for Damp Proofing in Wandsworth?
Wandsworth's housing stock is largely Victorian terraces and period houses, most of them built before 1920 in SW18. That means original slate or bitumen damp-proof courses that are now well over a hundred years old, often bridged by raised external ground levels or simply failed. We work across these streets regularly: the terraces around Wandsworth Common, the period houses near the river, and the older stock between Wandsworth High Street and Earlsfield. Penetrating damp is also common here. Exposed south-west-facing elevations take the weather, and pointing that was last done decades ago lets moisture straight through the brick.
Every project comes with a fixed-price contract, single project manager, and full certification including Building Control sign-off.
Damp Proofing for Wandsworth Properties
Wandsworth is known for its victorian terraces, riverside developments, period houses. Our damp proofing services are tailored to these property types, ensuring results that complement the character of your home.
Postcodes we cover: SW18
Damp Proofing Tip for Wandsworth Homeowners
If your SW18 property is within the Wandsworth Common conservation area, any external repairs to brickwork or render still need to use materials that match the original. Wandsworth Council's conservation officer will notice mismatched pointing on a front elevation. We use lime mortar on pre-1919 brick walls as a matter of course, because cement repointing traps moisture and accelerates spalling on the soft London stock brick common throughout these streets.
Damp proofing for Victorian and period houses in SW18
Damp treatment depends heavily on what we find: how many walls are affected, whether replastering is needed after treatment, and whether the job is rising damp, penetrating damp, or condensation, each requiring a different fix. We'll give you a written, fixed-price quote before anything starts.
Rising damp treatment for Victorian terraces in SW18
Chemical DPC injection is the standard fix for rising damp in Wandsworth's pre-1920 terraces. Most ground-floor treatments on a standard Victorian terrace involve replastering to 1.2 metres once the injection is complete. All our chemical DPC work carries a 20-year written guarantee backed by the product manufacturer.
Basement tanking for SW18 period houses
Period houses in Wandsworth with cellars or lower-ground-floor rooms often need tanking rather than injection, particularly those close to the Wandle or the Thames, where groundwater pressure is higher. Cementitious tanking slurry and cavity drain membrane systems are both options, chosen after we assess the hydrostatic pressure and the condition of the existing floor and walls. These systems carry a 10-year guarantee.
Diagnosing damp in Wandsworth's Victorian and period housing stock
The three types of damp, rising, penetrating, and condensation, look similar on a wall but need completely different treatments. We use calibrated moisture meters and thermal imaging to get the diagnosis right before we quote. Treating the wrong type leaves the problem unsolved.
Rising damp signs in SW18 Victorian terraces
In the terraces around Wandsworth Common and Earlsfield, rising damp typically shows as a tidemark up to one metre high, with white salt deposits (efflorescence) and blown plaster at ground-floor level. The original slate DPC in these houses has often cracked or been bridged where external paving has been raised flush with an air brick. We see it most on north-facing walls and on the party wall side where ground levels differ between properties.
Penetrating damp on SW18's exposed elevations
South-west-facing elevations in SW18 catch the prevailing wet weather directly. Failed pointing, cracked render, or deteriorated window flashings let water track through the wall and show up internally as spreading damp patches that worsen after rain. We inspect externally first. Often a targeted repointing or flashing repair solves the problem without any internal treatment.
Our damp proofing process in Wandsworth, from survey to guarantee
We don't sell treatments. We diagnose, then fix what we find. Every job starts with a free site visit and moisture survey, followed by a written report and fixed quote. Work typically takes one to two weeks, and we handle replastering after treatment so you're not left with bare walls.
Wandsworth conservation area: damp repairs on listed and period buildings
Some of the older period houses near Wandsworth Common sit within the conservation area. External repairs, repointing, render, chimney flashings, must use sympathetic materials. We use hydraulic lime mortars on pre-1919 brickwork throughout SW18 as standard. It's the correct material technically and it satisfies the conservation officer without needing a separate discussion.
Damp Proofing in Wandsworth: What's Included
How I price damp proofing in Wandsworth
I price every damp proofing job in Wandsworthafter I’ve seen it. No two properties are the same, so a number here would only mislead you. What you get instead is a fixed-price contract, a week-by-week programme, and no costs that turn up later.
Get a fixed quoteWhat Our Customers Say
“All Well managed our project from start to finish. The fixed-price contract meant no surprises, and the result is stunning.”
Verified Customer
Wandsworth
“Professional team, clear communication throughout. They handled everything including Building Control sign-off.”
Verified Customer
Wandsworth
Frequently Asked Questions
- How much does damp proofing cost in Wandsworth?
- We price after a free site visit because the right fix varies with the type of damp, the number of walls affected, and whether replastering is needed once treatment is done. Rising damp in a Victorian terrace usually means chemical DPC injection, while basement tanking suits SW18 period houses with cellars depending on the area and hydrostatic conditions. We give a fixed written quote before work begins, with no surprises mid-job.
- Do you offer a guarantee on damp proofing work in SW18?
- Yes. Chemical DPC injection carries a 20-year written guarantee backed by the product manufacturer, silicone-based cream systems from suppliers like Safeguard or Sovereign. Basement tanking systems are guaranteed for 10 years. The documentation is Property Care Association compliant, which solicitors and mortgage lenders routinely ask for during conveyancing. We provide it as standard.
- How long does damp proofing take in a Wandsworth property?
- Most treatments take one to two weeks, including any replastering after the injection has cured. A straightforward rising damp treatment on a single ground-floor wall in a SW18 Victorian terrace is typically done in two to three days. If tanking is involved, or if multiple walls need treating and replastering, allow closer to two weeks. We'll give you a programme before starting.
- Why use All Well for damp proofing in Wandsworth rather than a specialist damp company?
- Specialist damp companies make their money selling treatments, so there's a commercial incentive to diagnose damp even when the problem is condensation or a simple pointing repair. We diagnose honestly: if the fix is a flashing repair or lime repointing, we'll tell you that rather than sell you a DPC injection you don't need. We also handle the full job, treatment, replastering, and any associated remedial work, without you coordinating separate trades. We work across SW18 and know the Victorian stock here well.
All Well has completed 100+ projects across 25 London boroughs since 2020. We are NICEIC approved for electrical work, FENSA registered for glazing, and CHAS certified for site safety, with Public Liability insurance to £5 million. 57+ Google reviews average 4.5 stars. All Well Property Services® is a UK registered trademark, Companies House no. 12721034, operating from Unit 1 Limes Avenue, Anerley SE20 8QR.
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