Damp Proofing & Mould Removal Specialists in Barnet
Persistent damp, black mould that returns, or a musty smell that won’t shift? Most Barnet properties have an identifiable, treatable cause. We find it before recommending anything — backed by a 10-year guarantee on selected treatments.
Why Damp & Mould Solutions
Damp Specialists Who Know Barnet Properties
Barnet has a high concentration of Victorian and Edwardian properties — solid brick construction, suspended timber floors, and no original damp proof course. We know how these buildings behave, and what genuine damp looks like versus misdiagnosis.
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 Barnet postcodes EN4, EN5, N2, N3, N12, NW4.
Our services in Barnet
Damp Proofing, Surveys & Mould Removal Across Barnet
We treat every common cause of damp in Barnet 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 Barnet
Rising damp is prevalent in Barnet’s pre-1920 housing stock — Victorian terraces in Finchley, Hendon, and Golders Green frequently have failed or absent damp proof courses. It typically 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 Barnet
A professional damp survey is the only reliable way to distinguish rising damp from penetrating damp or condensation — misdiagnosis is common and leads to wasted money. We use calibrated moisture meters, boroscopes, and hygrometers to map your 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 Barnet Properties
Penetrating damp is caused by external water ingress — defective pointing, cracked render, damaged roofing, leaking gutters, or faulty window seals. It appears as damp patches on walls or ceilings, often following rainfall.
- 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 Barnet
Black mould in Barnet flats and modern homes 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 within weeks.
- 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 Barnet — Wet Rot, Dry Rot & Woodworm
Barnet’s older properties often have suspended timber floors and timber joists that 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 Barnet
Buying a property in Barnet? Our pre-purchase damp and timber survey gives you a clear picture of moisture and structural conditions before you exchange. Barnet’s period housing stock often raises flags in standard surveys that require specialist assessment.
- 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 Barnet
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 Barnet 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 Barnet
Damp Problems We’ve Solved Across Barnet
A small selection of recent jobs in the Barnet area. Every property is different — these examples illustrate how we approach diagnosis and treatment in the local housing stock.
Victorian Terrace, Finchley — Rising Damp to Ground Floor Walls
Tide marks and flaking plaster to two ground floor rooms. Survey confirmed failed original DPC. Chemical injection DPC installed, walls tanked, replastered with Sika renovation system. 10-year guarantee issued.
First Floor Flat, Hendon — Black Mould & Condensation
Tenant reporting persistent black mould to bedroom and bathroom walls. Survey identified condensation as sole cause — no structural damp found. Mould removed, PIV unit installed, landlord compliance documentation issued.
Property Purchase, Mill Hill — Damp Survey for Buyers
Standard survey flagged “damp” to rear of property. Our survey identified penetrating damp from defective pointing — not rising damp as originally feared. Report used to renegotiate purchase price. Repair cost significantly lower than initial estimate.
Areas covered in Barnet
Damp Proofing Across the London Borough of Barnet
We cover the full London Borough of Barnet, with regular work across all major areas. Select your area for local information, or call us to confirm availability.
Don’t see your area? Call 020 4542 6114 — we cover the full borough and surrounding areas including Hertfordshire borders.
Common questions
FAQ
How much does a damp survey in Barnet cost?
How do I know if my Barnet property has rising damp or condensation?
Do you treat rising damp in Victorian and Edwardian houses in Barnet?
Is mould in my Barnet flat damp proofing or a ventilation problem?
Which areas of Barnet do you cover?
Do you provide a guarantee on damp proofing work in Barnet?
Get in touch
Book a Damp Survey in Barnet
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. Barnet 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 Barnet
Fill in your details — same-week appointments frequently available across Barnet.
Stop Damp at the Source in Barnet
A proper diagnosis from a CSRT-qualified specialist before spending money on any treatment — that’s where every job starts.