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Dry rot spreads through timber and even across masonry, so speed matters. Proofterior identify dry rot and wet rot in Southampton homes, stop the moisture feeding it, remove and replace decayed timber and treat the surrounding wall — backed by a 25-year insured guarantee.
- ISSE accredited
- 25-year insured guarantee
- In-house specialist team
Book your complimentary survey
Tell us what is happening and a specialist will find the real cause and give you a fixed price to fix it. No obligation.
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Genuine reviews from local homeowners
Over 200 verified reviews across Checkatrade, Google and Yell




“Excellent service from start to finish. The survey was thorough and professional, with honest, evidence-based advice rather than trying to sell unnecessary work. I came away with complete peace of mind.”
Alex Richards-Taylor
Google review

“Excellent service throughout. Ashton came out to look at an issue raised on a part-exchange survey and, rather than recommend expensive remediation, told me honestly there was nothing wrong with the wall. Great to have an honest discussion.”
Ian M.
BH16 · Damp Investigation

“Dylan and the Proofterior team were amazing. The report was incredibly comprehensive. Can’t recommend them enough.”
Sam Short
Google review

“Very pleased with the work on our living room and bedroom walls. Punctual, polite and friendly, and completed on time even though it was Easter week. Many thanks to everyone at Proofterior.”
Chris G.
BH20 · Penetrating Damp Treatment

“Dan was very thorough, professional and polite. Quick to respond and I would highly recommend.”
Malik R.
Yell · Quick & Professional

“The workmen were clean, pleasant and efficient and took just one day. The very next day we noticed a big difference with the damp issue. Many thanks.”
Nick Bennett
Google review

“Able to fit my job in for the next day and completed in a day as agreed. Not the lowest quote, but it comes with a 25-year guarantee, which I wanted — long-term peace of mind was vital.”
Alan M.
BH23 · Flat Roof Reseal

“Ashton was so friendly and informative. I’ve gone from worried to empowered — someone you can trust to do the right thing.”
Suzanna Furbank
Google review

“Really amazing service. Dan provided a really thorough damp investigation and a very helpful damp report. Very quick responses too.”
Paul A.
Yell · Damp Investigation

“Happy with the speed — a full flat survey within a week. They explained our options, the price was extremely competitive, and our tenants are pleased with their fresher, safer flat.”
Verified Customer
SP6 · Damp Proofer

“Dan provided a very professional service from start to finish. Very good communication and a first-class job.”
Mark H.
Yell · Professional Service

“Excellent service from start to finish. The survey was thorough and professional, with honest, evidence-based advice rather than trying to sell unnecessary work. I came away with complete peace of mind.”
Alex Richards-Taylor
Google review

“Excellent service throughout. Ashton came out to look at an issue raised on a part-exchange survey and, rather than recommend expensive remediation, told me honestly there was nothing wrong with the wall. Great to have an honest discussion.”
Ian M.
BH16 · Damp Investigation

“Dylan and the Proofterior team were amazing. The report was incredibly comprehensive. Can’t recommend them enough.”
Sam Short
Google review

“Very pleased with the work on our living room and bedroom walls. Punctual, polite and friendly, and completed on time even though it was Easter week. Many thanks to everyone at Proofterior.”
Chris G.
BH20 · Penetrating Damp Treatment

“Dan was very thorough, professional and polite. Quick to respond and I would highly recommend.”
Malik R.
Yell · Quick & Professional

“The workmen were clean, pleasant and efficient and took just one day. The very next day we noticed a big difference with the damp issue. Many thanks.”
Nick Bennett
Google review

“Able to fit my job in for the next day and completed in a day as agreed. Not the lowest quote, but it comes with a 25-year guarantee, which I wanted — long-term peace of mind was vital.”
Alan M.
BH23 · Flat Roof Reseal

“Ashton was so friendly and informative. I’ve gone from worried to empowered — someone you can trust to do the right thing.”
Suzanna Furbank
Google review

“Really amazing service. Dan provided a really thorough damp investigation and a very helpful damp report. Very quick responses too.”
Paul A.
Yell · Damp Investigation

“Happy with the speed — a full flat survey within a week. They explained our options, the price was extremely competitive, and our tenants are pleased with their fresher, safer flat.”
Verified Customer
SP6 · Damp Proofer

“Dan provided a very professional service from start to finish. Very good communication and a first-class job.”
Mark H.
Yell · Professional Service
Areas we cover near Southampton
Our specialists regularly work throughout Southampton and the surrounding neighbourhoods.
Why Southampton homes get dry rot
The city’s Victorian and Edwardian terraces have suspended timber floors and timber built into walls — exactly where rot takes hold when moisture gets in.
Blocked air bricks
In terraces across Shirley, Freemantle and Portswood, air bricks are often buried by raised paths or blocked by extensions, leaving subfloor timbers in still, damp air.
Leaks behind bay windows and roofs
Leaking bay roofs, valley gutters and old downpipes soak lintels, wall plates and joist ends, often out of sight for years.
Student lets and empty periods
HMOs in Portswood and Highfield can go unheated between tenancies, letting humidity build and decay start unnoticed.
How we treat dry rot in Southampton
1. Timber survey
We confirm whether it is dry rot or wet rot, trace the full extent of the outbreak and find the moisture source behind it.
2. Remove and treat
Decayed timber is cut out well beyond the visible damage, and surrounding masonry is treated with fungicide where dry rot strands have spread.
3. Repair and prevent
New pre-treated timbers go in, ventilation and air bricks are restored and the leak or damp source is repaired so rot cannot return.
Services we provide in Southampton
Every service is delivered by our own in-house team and backed by our 25-year guarantee.
Your local damp, mould & timber team in Southampton
Rot in Southampton homes is almost always linked to a moisture problem that has been missed — a buried air brick, a leaking gutter or bridged damp. Our survey report shows you photos of the decay and its cause, explains what must be replaced and what can be kept, and gives an itemised quote. Work is carried out by vetted, Proofterior-trained specialists, managed by us.
Built to impress, built to last
Diagnosis first
We identify the real cause before recommending any treatment. No guesswork, and never unnecessary work.
In-house specialist team
Vetted, Proofterior-trained specialists, managed by us from survey to completion. No compromises.
25-year guarantee
Every treatment is backed by our 25-year insured guarantee, giving you lasting protection and peace of mind.
Recent projects near Southampton
Real photos from Proofterior jobs in and around the area — surveyed, treated and finished by our own in-house team.






Covering Dorset, Hampshire & Wiltshire
Local knowledge, specialist expertise and lasting protection for the home you care about.
Everything you might be wondering
Dry rot leaves timber cracked into cubes, can produce white cotton-wool growth and orange-brown spore dust, and spreads across masonry. Wet rot stays where the timber is wet and usually looks dark and soft. Our survey confirms which you have.
It is not a health risk in itself, but it can seriously weaken floors, joists and roof timbers if left untreated, so it should be dealt with quickly.
Yes. We replace decayed joists, wall plates and floorboards with pre-treated timber as part of the same job.
Yes. We work with landlords and agents across Southampton and arrange access with tenants directly.
No. Your initial property survey is completely complimentary and carried out with no obligation. A specialist visits your property, carries out a thorough assessment, and gives you clear, honest recommendations in plain English.
As a local, in-house team we are usually able to arrange a survey visit within a few days. Call us on 01202 287503 and we will book a time that suits you.
Get clear, honest answers about your home in Southampton
A qualified specialist will visit your property, carry out a thorough inspection and give you clear recommendations in plain English — everything explained in one visit, with no obligation.
