London & Surrey’s
Damp, Mould & Leak
Specialists
Our surveyors find the problem and our own engineers fix it. Clear evidence-based reports for landlords, property managers and insurance-related decisions.
Complete Detection, Treatment & Repair
Investigation, treatment and repair under one roof. Our engineers handle everything from the first call to the finished job. No subcontractors.
Damp Proofing
Rising damp, penetrating damp and condensation. Surveys by qualified surveyors and long-term waterproofing treatment.
Mould Treatment
Professional biocidal mould removal. We treat the moisture cause, not just the visible surface. Awaab’s Law compliant.
Leak Detection
Thermal imaging, acoustic detection and tracer gas. Any hidden leak found without unnecessary damage.
CCTV Drainage
HD camera surveys identifying blockages, root intrusion and collapsed pipes. Full written report and video.
Central Heating
Hidden heating leaks found without lifting floors. Boiler installation and central heating repair.
Insurance Reports
Independent trace and access investigations. Insurance-ready written reports within 24–48 hours.
One Team.
Start to Finish.
Many companies survey your property and hand you a report. You then have to find your own contractor, manage the job and hope they fix what was diagnosed. We don’t work that way.
Our engineers handle the detection, the repair and the reinstatement. One call, one team, one bill.
- Damp proofing, mould treatment and waterproofing
- Leak detection using thermal imaging and tracer gas
- CCTV drainage surveys and high-pressure jetting
- Central heating leaks and boiler installation
- Wet rot, dry rot and timber treatment
- Professional reports for landlords, councils and insurers
Are You Compliant?
Since October 2025, social landlords must act on emergency hazards within 24 hours, investigate damp and mould within 10 working days, and provide a written summary within 3 working days. Our surveyors investigate and our reporting team delivers a compliant written report, fast.
Independent Survey Report
Full written survey with moisture readings, photos and remediation plan. Prepared to the standard councils and housing associations require.
24-Hour Turnaround
Reports typically delivered within 24 hours of survey. Meet the 10-working-day investigation requirement without delay.
Legal-Format Reports
Formatted for Housing Ombudsman complaints, local authority escalations and legal proceedings.
We Fix It Too
In-house treatment means you can meet the 7-day repair commencement requirement without a separate contractor.
Why Customers Choose DML
Real investigations, written reports and repairs handled by one team.
Passed up to 12 Checkatrade vetting checks · £1,000 Checkatrade guarantee
What our Checkatrade customers say
Leak detection and mould treatmentLeak detection and mould treatment There was a horrible smell coming from my kitchen called damp mould leak How to trace an access carried out they repaired the leak and my insurance paid me back. They also treated the mould that I had.
Very happyGreat customer service
Mould treatmentGreat service , the guy who came was very informative and helpful. Have already recommended this company to a friend of mine who is experiencing similar issues at home.
leak detectionI had a leak in my living room underneath the floorboards which they were able to found with minimal damage and it also put everything and repaired it. thank you
Water leaking and mould treatmentWe had a leak repair done recently and after getting several plumbing quotes, this company was by far the cheapest. They arrived on time, quickly carried out the leak detection, found the source of the water leak, and fixed it the same day. Since the repair, we’ve treated the mould in one of the bedrooms that had been caused by the leak, and everything is now sorted. Professional, efficient, and great value for money. Highly recommend for anyone needing reliable plumbing services or leak repairs.
Registered UK company
Damp – Mould – Leak Detection Ltd · No. 16310132
Fully insured
All works covered and guaranteed
London & Surrey
Local teams across London and Surrey
Written reports
Every investigation documented — for landlords and insurers
Start to finish
One company from investigation to report to repair
REAL JOB
REAL JOB
REAL JOB
Trusted by homeowners, landlords, property managers and insurers across London & Surrey.
Recent investigation case studies are being added from completed DML jobs.
One team, the report each of you needs
From homeowners to housing teams — we investigate the cause, document it clearly, and fix it.
Ready to Fix the Problem?
Surveys available across London and Surrey. Same-day attendance for emergencies.