What We Do

Our Damp Treatment Services

Specialist damp proofing and timber treatment services for homeowners across Essex and Suffolk. Expert diagnosis, lasting solutions, and up to 20-year guarantees.

Rising damp treatment on a brick wall
South East Damp Experts
Up to 20-year guarantee

Damp Proofing

Rising Damp

Rising damp is one of the most common and damaging damp problems in UK homes. We diagnose the true cause and apply lasting chemical DPC treatments — guaranteed.

Full moisture survey using calibrated diagnostic equipment
Chemical DPC injection into masonry
Salt-resistant renovation plaster system
20-year guarantee registered with the GPT

Rising damp is frequently misdiagnosed. Our CSTDB/CSSW qualified surveyors use calibrated moisture meters to confirm the cause before recommending any treatment.

Basement waterproofing installation
South East Damp Experts
Up to 20-year guarantee

Waterproofing

Basement Waterproofing

A wet basement or cellar does not have to stay that way. We design and install complete waterproofing systems to BS 8102 standards that keep your below-ground space permanently dry.

Full structural and moisture survey
Cavity drain membrane system installation
Sump and pump unit for automatic water discharge
20-year guarantee registered with the GPT

We design bespoke systems for each property — Type A, B, or C — depending on your specific water table conditions and structural requirements.

Condensation and mould on a wall
South East Damp Experts
Installation guaranteed

Ventilation

Condensation & Mould

Condensation is the most common cause of damp in UK homes — and the most frequently misdiagnosed. We identify the true cause and provide lasting ventilation solutions.

Full ventilation and moisture assessment
PIV unit or extraction fan installation
Biocidal mould treatment to affected areas
Anti-mould decoration system where required

Many cases of condensation are incorrectly diagnosed as rising or penetrating damp. Our surveyors confirm the cause before specifying any treatment.

Dry rot treatment on timber
South East Damp Experts
Up to 20-year guarantee

Timber Treatment

Rot Treatment

Rot in timber is a serious structural problem that spreads rapidly if left untreated. Our qualified timber surveyors identify the type of rot, eliminate the source, and restore affected timbers.

Full timber and damp survey by CSTDB-qualified surveyor
Safe removal and disposal of all affected timber
Specialist fungicide treatment to surrounding masonry
Replacement of structural timbers where required

Dry rot can spread through masonry and across large areas of a property. Early diagnosis and treatment is essential to prevent costly structural damage.

Woodworm damage in timber
South East Damp Experts
Treatment guaranteed

Timber Treatment

Woodworm Treatment

Woodworm can silently destroy the structural and decorative timbers in your home. Our qualified surveyors identify the species, assess the damage, and apply targeted treatment.

Full timber inspection to confirm active infestation
Species identification and damage assessment
Permethrin-based insecticide treatment by spray or brush
Underlying damp conditions identified and resolved

Active woodworm infestations are most visible in spring and summer when adult beetles emerge. Fresh exit holes and powdery frass indicate an active infestation.

Penetrating damp staining on a wall
South East Damp Experts
Works guaranteed

Damp Proofing

Penetrating Damp

Penetrating damp enters through defects in the building fabric — walls, roof, windows, or gutters. We trace the source, fix the defect, and treat the internal damage.

Thorough external and internal inspection
Identification and repair of the moisture entry point
Internal replastering and mould treatment
Redecoration preparation and finish

Penetrating damp can appear at any height on a wall and is directly linked to rainfall. It is often confused with rising damp — correct diagnosis is essential.

PIV ventilation unit installation
South East Damp Experts
Installation guaranteed

Ventilation

PIV & Ventilation

Poor ventilation is the root cause of most condensation and mould problems. We install Positive Input Ventilation units and extraction fans that keep your home fresh and dry.

Full ventilation assessment of the property
PIV unit installed in loft or wall-mounted for flats
Bathroom and kitchen extraction fans upgraded where required
Energy-efficient, virtually silent operation

PIV units are one of the most cost-effective solutions for condensation. A single loft-mounted unit can ventilate an entire house for as little as £1 per week to run.

Iso-Therm insulation membrane installation
South East Damp Experts
Installation guaranteed

Insulation

Iso-Therm Insulation Membranes

Iso-Therm is a high-performance insulation membrane system that eliminates cold bridging on solid walls, dramatically improving thermal comfort and stopping condensation at source.

Wall construction and thermal performance assessment
Membrane fixed with adhesive and mechanical fixings
Boarded and plastered to a smooth finish
Ready for decoration — minimal depth added to wall

Iso-Therm is particularly effective in Victorian and Edwardian properties with solid brick walls that cannot be insulated externally.

Our Guarantee Promise

Every treatment we carry out is backed by a long-term guarantee registered with the Guarantee Protection Trust — giving you complete peace of mind that your investment is protected.

10 Years

Damp Proofing Guarantee

20 Years

Timber Treatment Guarantee

10 Years

Basement Waterproofing

GPT

Guarantee Protection Trust

Ready to Solve Your Damp Problem?

Book a professional survey with one of our qualified surveyors. We will diagnose the problem, explain our findings clearly, and provide a detailed, honest quotation.

"Used South East Damp Experts for a rising damp treatment on my house in Brentwood — they were really tidy workers and good communication all the way through the job. Highly recommend."

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Julie D·Brentwood, EssexYell.com

"Professional, efficient and ultra reliable throughout the process, as well as really approachable and friendly. Couldn't do more to help. Their quote came in significantly cheaper than the other company's and included more for our money. Top guys, top company. Couldn't recommend highly enough."

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Michael W·EssexYell.com

"The team provided a fantastic service from getting the initial survey done to the actual works itself. They were professional, friendly, reliable, efficient and very tidy. I really recommend these guys."

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Valerie O·EssexYell.com

"Promptly turned up to perform a survey. I felt confident I was not being pushed to get work done unnecessarily — the surveyor seemed very knowledgeable. Staff were courteous and professional when attending my property. Would use again and highly recommend."

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Jacqui C·EssexYell.com

"Reliable and respectful, good communication from the team. Completed our damp proofing on time and left our property clean and tidy."

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Jacky R·EssexYell.com

"I had rising damp at a property I was purchasing and used South East Damp Experts to carry out a survey which was done promptly. Dan was super helpful and communicative. The work was done efficiently and they even cleaned up well afterwards. Always very friendly, respectful and professional."

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Stacey J·EssexYell.com

"Incredible team, highly recommend these guys. Very friendly and professional, they did a fantastic job, nothing was an issue. Would definitely use them again. 100% recommended."

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Dan·EssexGoogle