Business Details
31 Years
experience
Expert Damp Proofing Services in London
London Damp Company has been protecting homes from damp in Central, West, and South London since 1995. Our team of experienced surveyors and builders combines meticulous craftsmanship with cutting-edge damp proofing technology to deliver cost-effective solutions. Specialising in rising damp, penetrating damp, condensation, and wood rot treatments, we prioritise heritage conservation while ensuring structural integrity. With a 100% diagnosis and cure guarantee, our services include free inspections, 20-year product warranties, and specialist plastering.Our expertise extends to basement waterproofing, cavity drainage, and timber infestation treatments, serving both residential and commercial properties. We maintain transparency through no-obligation consultations and free surveys, ensuring clients receive tailored solutions without pressure. Our commitment to quality is evidenced by hundreds of successfully completed projects across London's diverse architectural landscape.
Services
Damp Proofing
Basement Waterproofing
Timber Treatment
Condensation Control
Rising Damp Cure
Details
- Year established: 1995
Highlights and features
- 20 years of specialist damp proofing experience in London
- 100% diagnosis and cure guarantee on all treatments
- Heritage conservation specialists for period properties
- Free inspections in Central, South, and West London
- 20-year product warranties on damp proofing systems
What people say
Efficient and friendly team
Excellent service
Highly experienced
Second to none workmanship
Brilliant treatment results
Services
Damp Proofing
Our chemical damp proofing creates impermeable barriers against rising damp. Using pressure-injected solutions, we stop moisture ascent in walls. This treatment includes salt-neutralising plastering to prevent recurrence. Ideal for Victorian and period properties with failed damp courses. Lasts up to 20 years with proper maintenance.
Basement Waterproofing
We apply cementitious slurry or cavity drainage systems to basement structures. This creates waterproof barriers against groundwater ingress. Systems include membrane drainage and pump installations for flood-prone areas. Suitable for converting damp basements into habitable spaces with 20-year guarantees.
Timber Treatment
Our specialists treat dry rot, wet rot, and woodworm infestations. The process involves identifying moisture sources, removing affected timber, and applying preservative treatments. We replace structural timbers where necessary, ensuring complete eradication of infestations and preventing recurrence.
Condensation Control
We implement ventilation systems and breathable plastering solutions to manage condensation. This includes installing passive vents and heat exchange fans. Our approach addresses black mould growth and prevents timber decay caused by persistent moisture in residential and commercial properties.
Heritage Damp Proofing
Specialist damp solutions for listed buildings and conservation areas. We use traditional materials and methods that maintain architectural integrity while eliminating damp. Includes lime-based plasters and period-appropriate damp courses that comply with heritage regulations.
People
Nicholas
Lead Surveyor
With 20 years' experience in London damp proofing, Nicholas specialises in diagnosing complex damp issues. He oversees all technical operations and guarantees period-appropriate treatments for heritage properties. Holds CSSW Surveyor qualifications.
Questions
What causes rising damp in London properties?
Rising damp occurs when groundwater ascends through walls via capillary action, leaving salt deposits that perpetuate dampness. Common in older properties with failed damp proof courses.
How do you treat condensation problems?
We address condensation through ventilation improvements, specialist plastering, and moisture control solutions while identifying underlying damp causes.
Do you offer guarantees on damp proofing?
Yes, we provide 20-year product guarantees on chemical damp courses and 10-year guarantees on tanking systems.
Can damp affect property value?
Untreated damp weakens structures and lowers property value. Our treatments restore structural integrity and maintain property worth.
Are your treatments suitable for listed buildings?
Yes, our heritage specialists use period-appropriate methods that respect architectural integrity while eliminating damp.
How quickly can you complete a survey?
We offer free surveys with reports delivered within 48 hours of onsite inspections.
Reviews (4)
Peter Taylor
Jul 21, 2021
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Nicholas and his team carried out damp work on our home and we highly recommend the London Damp Co. The quality of work was at a very high standard and the plaster finish afterwards was exemplary. Nicholas was also kind enough to fix a couple of plumbing problems as well, which were tricky. Again this work was excellent. A few months later, we can confirm that the damp problems remain completely sorted. The cost of everything was extremely competitive too. We have no hesitation in rating Nicholas as five stars. Thank you for all your help. We would have no hesitation asking for your help again
Courtney Brown
Feb 25, 2021
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Was advised to send pictures etc by email and a surveyor would do a report or decide IF they needed to come out. Although their web site said you hear from them in 48 hours. They did not respond or even update me. I then chased them 5 days later to be told I'd have it the next day. Then chased again as it was the first time they had even confirmed receiving my information only to be told they do not cover the area due to covid. So I wasted 6 days that I could of had another contractor appointed. Unprofessional is an understatement.
Ben Allen
Nov 20, 2019
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These guys are highly unprofessional, I would suggest you avoid them. I paid 99 for them to do a survey and then never heard anything. I spent weeks chasing them. After two months I finally got my money back. A complete waste of time.
Michelle Brooke
Oct 15, 2019
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Under NO circumstances should you use this company. Incorrectly tanked my bedroom in 2016 and didn't even complete the job. No response to any of my emails or phone calls and the insurance 'guarantee' they provided was not worth the paper it is written on. Company owner largely stoned and incoherent when on site. Now having to get their shoddy work ripped out at great cost and redone by a reputable company. See attached photo. AVOID.
