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Business Details
Damp Proofing & Timber Treatment Experts in Kent
South East Timber & Damp has been a trusted name in property care and preservation for over 15 years. Founded by Dean and Annabelle Webster, our husband-and-wife leadership combines decades of industry expertise with a commitment to excellence. As accredited members of the Property Care Association and a Which? Trusted Trader, we specialise in diagnosing and resolving damp, timber decay, and waterproofing challenges for residential and commercial properties across Kent and southeast England. Our team of certified surveyors and technicians delivers tailored solutions, including rising damp treatment, dry rot remediation, and basement waterproofing, supported by 10-year guarantees backed by GPI insurance.

With a focus on transparency, we publish all customer feedback and maintain rigorous standards through accreditations like CHAS and TrustMark. Our approach prioritises long-term property integrity while minimising disruption, ensuring clients receive expert advice and durable results. This dedication to quality has earned us a 9.63 average rating on CheckATrade and recognition as a leading remedial specialist in Kent.
Services
Damp Proofing Timber Treatment Basement Waterproofing Damp Surveys Listed Building Preservation
Highlights and features
  • We have over 15 years of experience in damp and timber preservation.
  • Our team includes CSRT, CSSW, and CSJK qualified surveyors.
  • All work is guaranteed for up to 10 years with GPI insurance backing.
  • We publish unedited customer feedback for complete transparency.
  • We are accredited by industry-leading organisations including the PCA and CHAS.
Associations and certifications
  • Property Care Association
  • Which? Trusted Trader
  • TrustMark
  • Constructionline
  • CHAS
  • Checkatrade
  • Guarantee Protection Insurance (GPI)
What people say
Excellent service Knowledgeable team Reliable solutions Transparent process Guaranteed results
Services
Damp Proofing
Our damp proofing specialists address rising damp, penetrating damp, and condensation issues using industry-approved methods. We conduct thorough moisture assessments to identify root causes before implementing chemical damp courses, waterproof membranes, or ventilation improvements. Treatments are tailored to property age and construction type, with 10-year guarantees provided for all structural interventions. This ensures long-term protection against moisture ingress and associated damage.
Timber Treatment
Specialist remediation for dry rot, wet rot, and woodworm infestations forms a core part of our service offering. Our CSRT-certified surveyors assess timber decay extent before applying appropriate biocidal treatments and structural repairs. We use borate-based solutions for chemical preservation while maintaining period property authenticity through traditional repair techniques. All treatments include post-treatment monitoring and guarantee coverage.
Basement Waterproofing
We design and install Type A (barrier), Type B (structurally integral), and Type C (drained) waterproofing systems for below-ground spaces. Our CSSW-qualified surveyors create bespoke solutions incorporating cavity drain membranes, sump pump systems, and structural tanking. This enables conversion of damp basements into habitable spaces while complying with British Standard 8102 standards for waterproofing.
Damp Surveys
Our comprehensive damp surveys include moisture meter testing, hygrometric analysis, and visual inspections to diagnose damp causes accurately. Available in Snapshot, Comprehensive, and Fast-Track formats, these assessments identify whether issues stem from rising damp, penetrating damp, or condensation. Survey reports include detailed remediation recommendations and cost estimates for required treatments.
Listed Building Preservation
We provide specialist damp and timber treatments for Grade II, II*, and I listed buildings while maintaining historical integrity. Our approach combines traditional lime-based materials with modern diagnostics to address moisture issues in period properties. Works comply with English Heritage guidelines and SPAB-recommended practices, ensuring preservation of architectural character alongside structural protection.
People
Dean Webster
Managing Director
With over 30 years' experience, Dean is a CSRT, CSSW, and CSJK qualified surveyor specialising in remedial property treatments. He personally oversees all technical operations and complex damp surveys, ensuring adherence to industry best practices while maintaining the company's Which? Trusted Trader status.
Annabelle Webster
Business Development Director
Annabelle manages client relations and service coordination, leveraging her extensive knowledge of property preservation to ensure customer satisfaction. She plays a key role in maintaining the company's high service standards through staff development and process optimisation.
Questions
What are the signs of damp in my property?
Common indicators include musty odours, visible mould growth, damp patches on walls, peeling wallpaper, white salt stains, and cold or damp wall surfaces. Our comprehensive surveys identify these symptoms to determine the underlying cause.
What's the difference between rising damp and penetrating damp?
Rising damp occurs when ground moisture travels upward through walls via capillary action, typically stopping at 1m height. Penetrating damp results from water ingress through external walls due to defects like damaged gutters or cracked brickwork.
Are your damp surveys free?
No, our surveys range from £95 to £295. This ensures thorough, professional assessments by qualified surveyors rather than sales-driven diagnostics, providing accurate solutions that save money long-term.
Do you offer guarantees for your work?
Yes, we provide 10-year guarantees on chemical damp proofing, tanking, and timber treatments. These guarantees are backed by GPI insurance for added security and can be transferred to new property owners.
Are you members of industry trade bodies?
We are accredited members of the Property Care Association, Which? Trusted Trader, TrustMark, and CHAS. These memberships demonstrate our commitment to industry standards and professional excellence.