Under New Ownership
Find the cause.
Fix the damp.
Pay when it’s done.
Southern Damp Proofing are your local experts for damp proofing and damp related problems across South London, South East London and parts of Kent. Rising and penetrating damp, condensation and mould, basement tanking, rot and woodworm, all starting with a free survey.
Surveys, treatment and making good, by one team.
Our terms
“Under New Ownership: We do not require a deposit… and only expect payment when job is completed and certified with our accredited guarantee.”
No deposit
Nothing to pay before the work starts.
Pay on completion
Payment once the job is completed and certified.
Free survey
Free No Obligation Site Damp Surveys.
No hidden charges
No hidden charges or call out charges, and itemised quotes.
Southern Damp Proofing carries both comprehensive employers/public liability insurance and professional indemnity insurance.
01What we treat
Every kind of damp, above and below ground.
We help people eradicate all types of damp from all types of properties, above and below ground, at home or on commercial premises.
Damp surveys and Pre-Purchase reports
Before starting any kind of treatment, our specialist surveyors inspect the premises to detect the cause of dampness and give you a report. If it warrants damp treatment, we will give you a comprehensive and transparent quotation so you can understand the nature of the suggested work.
Buying a property? Our timber and damp surveys include a Pre-Purchase Report for Woodworm, Rot & Damp Problems.
Rising Damp and Penetrating Damp
Rising damp comes up from the ground, usually through a damaged damp proof course or none at all. We inject chemicals and gels into the wall to create an artificial DPC, which is far cheaper than cutting in a physical one.
Penetrating Damp can show up at any level of the house, from leaky roofing, poorly maintained guttering, burst pipes or tired render and pointing. We find the defect and treat the wall.
Condensation and mould
If you face issues with condensation and mould growth in your home or water streaming in your windows and musty smell indoors, we can be of help.
Our services include damp proofing, mould eradication and condensation control.
Basement Tanking and Structural Waterproofing
We provide customised waterproofing solutions whether you are looking to renovate your basement at home or you are planning to revamp your commercial space.
Cellar and basement waterproofing, cavity drainage systems, inner wall waterproofing and mastic asphalt.
Wet Rot and Dry Rot
Dry rot, if left untreated, can cause serious threats to the property resulting in wide-spread damage to the wood and masonry.
Our surveyors inspect the timber, diagnose whether it is wet or dry rot, and treat it accordingly.
Woodworm and Timber treatment
An experienced surveyor from our team inspects your property and confirms if a live woodworm (the Anobium Punctatum or the Furniture Beetle) infestation is present.
If traces of such infestation are found, then our experts spray or paint an insecticide solution on the affected area which completely eliminates the woodworm infestation.
02Know your damp
Rising, penetrating or condensation?
It’s imperative that damp is identified as soon as possible. Getting the diagnosis right is the whole job, which is why every treatment starts with a survey.
Rising Damp
Caused by moisture underground that rises through your floors and brickwork, commonly because of a damaged damp proof course, or no damp proof course at all. It usually climbs to around 900 mm and leaves a tide mark, with a powdery white substance on the walls damaging paint and plaster.
Penetrating Damp
Unlike rising damp, it can happen at any level of your property. Leaky roofing, fractures in paint, poorly maintained guttering, burst pipes, cracked tiles or worn render and pointing let water in, and left untreated it can damage walls, floors and ceilings and even rot timbers.
Condensation
Water streaming down the windows, mould growth and a musty smell indoors. We get to the source so the problem stays gone.
03How a job runs
From survey to sign-off, you’re never left guessing.
Free survey
We come out, inspect the property and find what is actually causing the damp. The survey is free and there is never any obligation.
A clear, itemised quote
You get a detailed and comprehensive quote so that you understand exactly what has been included, with no hidden charges or call out charges.
Treatment and making good
Our team treats the damp and makes good afterwards, from re-plastering to render repairs, and keeps the site clean and tidy. We keep you updated on the schedule as the work goes.
Sign-off, then payment
We only expect payment when job is completed and certified with our accredited guarantee. We check in again after completion to make sure you are happy.
04Recent jobs
Damp treatment, render repairs and roofs cleared of moss.
Photos from real jobs, from external render patching to a roof cleared of moss build up.
05Reviews
What customers say.
4.5
Average rating from 22 Google reviews
“Southern Damp Proofing carried out work at my home in November 2024 and further work in February 2025. The team was led by Tobie, and I couldn’t be happier with the experience. From the initial consultation, Tobie provided an informative and detailed quote, clearly explaining the various options for the work to be done, including precautionary damp treatment. His expertise and transparency made it easy to understand the best course of action for my property. There were 3 main areas for damp treatment and the removal of moss build up in my roof - the difference as you can see in the photos is incredible.
Throughout the project, the team was incredibly communicative. They always turned up exactly when they said they would and kept me informed about any delays due to weather conditions. This level of communication was very reassuring and demonstrated their professionalism.
The team worked diligently and efficiently, ensuring that the job was completed to a high standard. They took great care to leave the site very clean and tidy each day, which I greatly appreciated.
I’m extremely happy with the quality of the work carried out by Tobie and his team. The damp proofing has made a significant difference, and I feel confident in the longevity of their work. I would highly recommend Southern Damp Proofing to anyone in need of damp treatment services.”
“Southern Damp Proofing have been absolutely fantastic from from start to finish. Dan carried out the survey and oversaw the project, checking in during the work and again on completion to make sure everything was done properly and that we were happy. Everything was kept to the exact timescale as agreed. The plasterers were especially impressive, very tidy, respectful of our home, and left everything clean once finished. Jen in the office also called daily and was extremely helpful updating us on the schedule of works. Everything went smoothly Highly recommend.”
R Smith, Google review, February 2026
“Southern damp proofing has been absolutely brilliant from the start to finish. 3 internal walls damp proofed and outside render repaired. I was told about every bit they have done step by step. I’ve had 2 follow up phone calls since completion. They donated 50 pound from the job to my charity of choice, even though they don’t post that they do this from every job. Really pleased”
Steve Christie, Google review, March 2026
“Tobie and his team sorted out some riding damp and re plastering in my kitchen. They were friendly and efficient and carried out the work to a good standard, with a very smooth finish to the new plasterwork. They were also very tidy. Communication with Tobie throughout the process was excellent. I would be happy to recommend them.”
chris tracey, Google review, March 2025
“Southern damp proofing. Very professional. I was very impressed with the quote, right through to the finished job. Highly recommend. Thank you Dan Brown.”
Mark Bisset, Google review, February 2026
06The team
Names you’ll get to know.
We’re very proud of our team of damp proofing specialists. From the first visit to the final check-in call, you deal with the same small team.
Dan Brown
Owner and surveyor
Dan carries out surveys and oversees projects, checking in during the work and again on completion.
Tobie
Leads the team on site
Tobie leads the team on site, and talks you through the options at the initial consultation and quote.
Jen
Office
Jen keeps you updated on the schedule of works while the job is running.
“They donated 50 pound from the job to my charity of choice, even though they don’t post that they do this from every job.”
Steve Christie, Google review
07Where we work
South London, South East London and parts of Kent.
We work all over South London, South East London and parts of Kent and cover all aspects of damp related remedial works. Based in Welling, we regularly work in:
- Beckenham
- Bermondsey
- Bromley
- Camberwell
- Catford
- Chislehurst
- Deptford
- Eltham
- Greenwich
- Lambeth
- Lewisham
- Orpington
- Penge
- Poplar
- Sidcup
- Southwark
- Streatham
- Welling
- Woolwich
In Kent
- Sevenoaks
- Westerham
08Contact
Book your free survey.
Call us today on 020 7971 1329 to arrange a free survey, or send us the details. The more you can tell us about the type, location and size of the property, the better.
- Phone020 7971 1329
- Emailquotes@southerndampproofing.co.uk
- Address17 Westbrook Road, Welling DA16 1QE
Opening hours
- Mon-Fri
- 8am-5:30pm
- Saturday
- Closed
- Sunday
- Closed