Damp Proofing & Mould Removal Specialists in Finchley
Finchley has one of the highest concentrations of Victorian terrace housing in North London — with clay-heavy soil that retains moisture year-round and original slate DPCs that have been failing for decades. Rising damp is common and diagnosable. So is condensation in subdivided conversion flats. We identify which you have before recommending anything.
Why Damp & Mould Solutions
Damp Specialists Who Know Finchley Properties
East Finchley, Finchley Central, and North Finchley are dominated by late Victorian and Edwardian housing built on London clay — one of the most moisture-retentive soils in the region. Original slate DPCs typically fail after 80–100 years. Finchley’s converted-flat stock also sees condensation frequently misdiagnosed as structural damp.
CSRT-qualified surveyors
Every survey carried out by a qualified specialist — not a sales rep.
Detailed written reports
Useful for mortgage lenders, insurers, and property purchases.
10-year guarantee
On selected damp proofing treatments — transferable on property sale.
Same-week surveys
Fast availability across Finchley postcodes — N2, N3, N12.
Our services in Finchley
Damp Proofing, Surveys & Mould Removal Across Finchley
We treat every common cause of damp in Finchley residential and commercial properties. Each service begins with a proper diagnosis — we don’t recommend treatment until we know the cause.
Rising Damp Treatment in Finchley
Rising damp is common across Finchley’s older housing stock — particularly pre-1940 properties where original DPCs have failed or are absent. It presents as tide marks, salt deposits, and damp lower walls up to around one metre.
- Chemical DPC injection — CSRT-specified method
- Tanking and replastering with damp-resistant render
- 10-year guarantee on completed works
- Salt removal and finishing included
Damp Survey in Finchley
A professional damp survey is the only reliable way to distinguish rising damp from penetrating damp or condensation. We use calibrated moisture meters, boroscopes, and hygrometers to map your Finchley property accurately.
- CSRT-qualified surveyor — independent, not sales-led
- Written report with photographs and moisture readings
- Suitable for home purchases, mortgage requirements, and insurance
- Fixed-price quotation provided where treatment is required
Penetrating Damp in Finchley Properties
Penetrating damp — caused by defective pointing, cracked render, damaged roofing, or leaking gutters — appears as damp patches following rainfall. Common throughout Finchley’s period and post-war stock.
- Source identified before any treatment is carried out
- External masonry repair, pointing, and waterproof coatings
- Internal tanking where required
- No surface-only treatments without root-cause repair
Mould Removal & Condensation Control in Finchley
Black mould in Finchley flats and converted houses is almost always caused by condensation and inadequate ventilation — not structural damp. We treat the mould and address the root cause so it doesn’t return.
- Professional mould removal and anti-fungal treatment
- Positive input ventilation (PIV) for whole-home humidity control
- Ventilation assessment and fan installation
- Landlord documentation provided on request
Timber Treatment in Finchley — Wet Rot, Dry Rot & Woodworm
Older properties in Finchley with suspended timber floors can be affected by damp-related decay. Wet rot and dry rot left untreated will compromise structural integrity. We carry out full diagnosis and treatment.
- Wet rot and dry rot identification and eradication
- Woodworm treatment and preventive application
- Joist and floor repair or replacement where required
- Moisture source addressed as part of the same works
Pre-Purchase Damp Survey in Finchley
Buying a property in Finchley? Our pre-purchase damp and timber survey gives you a clear picture before you exchange — with fast turnaround for buyers working to exchange deadlines.
- Independent report — no vested interest in recommending treatment
- Fast turnaround for buyers working to exchange deadlines
- Covers rising damp, penetrating damp, condensation, and timber
- Report format accepted by mortgage lenders and solicitors
Not sure which service you need?
That’s exactly what a damp survey is for. We’ll identify the cause of your problem — rising damp, penetrating damp, or condensation — and tell you what’s actually needed to fix it. No upselling, no unnecessary work. Learn more about our damp survey →
How it works
Our Process in Finchley
We never recommend treatment before we know the cause. Every job starts with a proper survey — and we’ll tell you honestly if you don’t need us.
Survey
CSRT-qualified specialist assesses your Finchley property — often same week
Report
Written diagnosis with moisture readings, photographs, and honest conclusions
Fixed Quote
Itemised, written quote — no surprises, no hidden charges, no obligation
Treatment
Works carried out by our own engineers — not subcontracted — with full aftercare
Recent work in Finchley
Damp Problems We’ve Solved Across Finchley
A small selection of recent jobs in the Finchley area. Every property is different — these examples illustrate how we approach diagnosis and treatment in the local housing stock.
Victorian Terrace, East Finchley — Rising Damp to Both Ground Floor Rooms
Tide marks and salt deposits to front and rear ground floor walls. Survey confirmed original slate DPC had failed — London clay compounding moisture levels. Chemical injection DPC, tanked replaster with renovation render. 10-year guarantee issued.
Converted Flat, Finchley Central — Mould to Bedroom and Bathroom
Ground floor conversion flat with mould to two rooms. Survey confirmed condensation as sole cause — blocked sub-floor air bricks had raised internal humidity. Air bricks cleared, PIV installed, mould treated.
Pre-Purchase Survey, North Finchley — Damp to Chimney Breast
RICS report flagged damp to chimney breast. Our survey identified penetrating damp from a capped but unventilated chimney stack — not rising damp. Chimney ventilated and capping repaired. Report used at purchase negotiation.
Areas covered near Finchley
Damp Proofing Across Finchley and Surrounding Areas
We cover Finchley and all surrounding neighbourhoods. Select your area for local information, or call us to confirm availability.
Don’t see your area? Call 020 4542 6114 — we cover a wide area across North and North West London.
Common questions
FAQ — Damp Proofing in Finchley
How much does a damp survey in Finchley cost?
Why is rising damp so common in Finchley Victorian houses?
Is mould in my Finchley conversion flat a damp problem?
Do you cover N2, N3, and N12?
Do you guarantee damp proofing in Finchley?
Get in touch
Book a Damp Survey in Finchley
Speak to a CSRT-Qualified Damp Specialist
Tell us about the problem you’re seeing and your property type — we’ll confirm whether we can help and what to expect from a survey. Finchley homeowners, buyers, and landlords all welcome.
💡 Tip: Send photos of the affected area to info@dampandmouldsolutions.co.uk — the more we can see before the survey, the faster we can advise on likely cause and solution.
Request a Survey in Finchley
Fill in your details — same-week appointments frequently available across Finchley.
Stop Damp at the Source in Finchley
A proper diagnosis from a CSRT-qualified specialist before spending money on any treatment — that’s where every job starts.