Call Now
Website
Call
Business Details
50+ Years
experience
Professional Damp Proofing Solutions London
Established in 1971, Tapco HomeDry has built a reputation as one of London and the Home Counties' premier specialists in damp proofing, basement conversion, and property preservation. With over 50 years of continuous trading, our expertise spans rising damp prevention, condensation control, dry rot eradication, and structural waterproofing. As ISO 9001:2015-certified professionals and long-term members of the Property Care Association (PCA), we combine technical excellence with a commitment to client satisfaction.

Our team of PCA-qualified surveyors and technicians delivers tailored solutions for homeowners, landlords, and commercial clients, ensuring compliance with industry standards. Backed by Guarantee Protection Insurance (GPI) and a 40-year track record of visiting 4,000+ properties annually, we provide long-term guarantees and transparent, no-commission surveys. Our dedication to quality has earned us a 'Excellent' Trustpilot rating and recognition as a Which? Trusted Trader.
Services
Damp Proofing Basement Waterproofing Dry Rot Treatment Condensation Control Property Maintenance
Details
  • Year established: 1971
Highlights and features
  • 50 years of specialist experience in damp and timber preservation
  • ISO 9001:2015-certified quality management systems
  • PCA-qualified surveyors with no commission-based recommendations
  • Guarantee Protection Insurance-backed long-term guarantees
  • 4,000+ properties treated annually across London and the Home Counties
Associations and certifications
  • ISO 9001:2015
  • Property Care Association (PCA)
  • Guarantee Protection Insurance (GPI)
  • Basement Waterproofing Association (BWA)
What people say
Professional team Excellent workmanship Prompt service Thorough surveys Reliable solutions
Services
Damp Proofing
Our damp proofing specialists address rising damp and lateral damp penetration through capillary action or hydrostatic pressure. Using chemical injections, physical barriers, and advanced tanking systems, we prevent moisture transmission in walls. Tailored solutions include cavity drain membranes for basements and cementitious waterproof coatings, all compliant with BS8102:2009 standards.
Basement Waterproofing
We transform basements into habitable spaces through structural waterproofing and cavity drain membrane systems. Our Delta Membrane and Sovereign-approved installations manage hydrostatic pressure while ensuring thermal efficiency. Complete solutions include drainage channels, pump stations, and plastering finishes for residential and commercial properties.
Dry Rot Treatment
Specialist eradication of Serpula lacrymans dry rot infestations using borate treatments and fungicidal solutions. We remove affected timbers, apply preservatives, and replace with treated wood following building regulations. Comprehensive surveys identify moisture sources to prevent recurrence in London's older properties.
Condensation Control
Targeting condensation caused by lifestyle factors and poor ventilation, we install ventilation systems, thermal linings, and moisture barriers. Our PCA-certified surveys identify dew point issues and recommend solutions like extractor fans and wall insulation to prevent mould growth in Victorian and modern properties.
Property Maintenance
Comprehensive maintenance services for domestic and commercial properties including cavity wall tie replacement, brick stitching, and structural repairs. We address cracks from subsidence, perform rain penetration repairs, and maintain waterproofing systems across London's diverse building stock.
Questions
How do I identify rising damp versus condensation?
Rising damp shows horizontal damp patches up to 1m high with tide marks. Condensation creates black mould patches on cold walls. Our PCA surveyors use moisture meters and thermal imaging to diagnose accurately.
Do you offer guarantees for damp proofing work?
All treatments come with transferable guarantees protected by Guarantee Protection Insurance (GPI) for 10 years, ensuring coverage even if we cease trading.
Can you treat damp in listed buildings?
Yes, we specialise in preserving historic properties using breathable materials and traditional methods that comply with conservation area regulations.
What areas do you cover?
We operate across London, Surrey, Kent, Hampshire, Berkshire, and the wider Home Counties with rapid response times for emergency surveys.
How long does basement waterproofing take?
Most residential projects complete in 3-5 days using our streamlined process, with commercial installations scheduled according to site requirements.
Are your treatments safe for families?
We use aqueous-based preservatives with 1-hour re-entry times, ensuring safety for children, pets, and allergy sufferers during and after treatment.
Reviews (3)
Chris Shepherd
Apr 13, 2018 Report
Completed replacement hopper, lead lined gutter of London Roof and replaced tiles. Internal replacement of water damaged joists in the loft.
Grant James
Apr 12, 2018 Report
Air vents installed to the house and Tapco Homedry engineer's are friendly, job done very well, efficient and clean up was excellent!
Clare Eb
Mar 01, 2018 Report
Absolutely fantastic from start to finish. My house has just been treated for rising damp. The workman were skilled, efficient and considerate. They've done a sterling job and I wouldn't hesitate to recommend Tapco to anybody.