Proofterior Group Limited
Proofterior specialist inspecting and treating structural timber
ISSE accredited
Checkatrade approved member
Biokil Crown approved contractor
Yell reviewed business
ISSE accredited
Checkatrade approved member
Biokil Crown approved contractor
Yell reviewed business
ISSE accredited
Checkatrade approved member
Biokil Crown approved contractor
Yell reviewed business
ISSE accredited
Checkatrade approved member
Biokil Crown approved contractor
Yell reviewed business
ISSE accredited
Checkatrade approved member
Biokil Crown approved contractor
Yell reviewed business
ISSE accredited
Checkatrade approved member
Biokil Crown approved contractor
Yell reviewed business
Timber preservation specialists

Timber Treatment Specialists in Dorset, Hampshire & Wiltshire

Woodworm, wet rot and dry rot all trace back to one thing — moisture. Proofterior identifies the true cause, treats or replaces the affected timber, and resolves the damp behind it, safeguarding the structure of your home. Every treatment follows Property Care Association (PCA) guidance and is backed by our 25-year insured guarantee.

  • ISSE accredited
  • 25-year insured guarantee
  • In-house specialist team
01202 287503
4.9/5 · 200+ reviews

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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First, who's enquiring?

What homeowners say

Genuine reviews from local homeowners

Over 200 verified reviews across Checkatrade, Google and Yell

Checkatrade logo
9.36/10
83 reviews
Google logo
4.9/5
106 reviews
Yell logo
5.0/5
64 reviews
Google logo

“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.”

A

Alex Richards-Taylor

Google review

Checkatrade logo

“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.”

I

Ian M.

BH16 · Damp Investigation

Google logo

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

S

Sam Short

Google review

Checkatrade logo

“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.”

C

Chris G.

BH20 · Penetrating Damp Treatment

Yell logo

“Dan was very thorough, professional and polite. Quick to respond and I would highly recommend.”

M

Malik R.

Yell · Quick & Professional

Google logo

“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.”

N

Nick Bennett

Google review

Checkatrade logo

“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.”

A

Alan M.

BH23 · Flat Roof Reseal

Google logo

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

S

Suzanna Furbank

Google review

Yell logo

“Really amazing service. Dan provided a really thorough damp investigation and a very helpful damp report. Very quick responses too.”

P

Paul A.

Yell · Damp Investigation

Checkatrade logo

“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.”

V

Verified Customer

SP6 · Damp Proofer

Yell logo

“Dan provided a very professional service from start to finish. Very good communication and a first-class job.”

M

Mark H.

Yell · Professional Service

Google logo

“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.”

A

Alex Richards-Taylor

Google review

Checkatrade logo

“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.”

I

Ian M.

BH16 · Damp Investigation

Google logo

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

S

Sam Short

Google review

Checkatrade logo

“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.”

C

Chris G.

BH20 · Penetrating Damp Treatment

Yell logo

“Dan was very thorough, professional and polite. Quick to respond and I would highly recommend.”

M

Malik R.

Yell · Quick & Professional

Google logo

“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.”

N

Nick Bennett

Google review

Checkatrade logo

“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.”

A

Alan M.

BH23 · Flat Roof Reseal

Google logo

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

S

Suzanna Furbank

Google review

Yell logo

“Really amazing service. Dan provided a really thorough damp investigation and a very helpful damp report. Very quick responses too.”

P

Paul A.

Yell · Damp Investigation

Checkatrade logo

“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.”

V

Verified Customer

SP6 · Damp Proofer

Yell logo

“Dan provided a very professional service from start to finish. Very good communication and a first-class job.”

M

Mark H.

Yell · Professional Service

Why it matters

Treat the timber, fix the moisture

Timber decay and wood-boring beetle rarely appear in dry, well-ventilated timber. Where you find active woodworm, wet rot or dry rot, there is almost always a moisture problem feeding it — a leak, penetrating damp, or poor sub-floor ventilation.

That is why treating the timber alone is never enough. If the damp is left in place, the decay simply returns, and dry rot in particular can spread quickly through masonry and sound timber if it is not dealt with properly.

Following PCA guidance, our surveyor confirms whether an infestation is active, establishes the extent of any decay, and treats or replaces the affected timber while resolving the moisture source behind it — all carried out by our own in-house team.

Structural timber inspected and treated by the Proofterior team
Know your enemy

The timber problems we treat

Each has a different cause and a different treatment. Our survey confirms exactly what you are dealing with before any work is quoted.

Woodworm (wood-boring beetle)

Larvae tunnel through timber, leaving small round exit holes and fine bore dust. Left untreated, an active infestation weakens joists, floorboards and roof timbers over time.

Wet rot

The most common form of timber decay, caused by persistent damp. It stays localised to the wet area, softening and darkening timber — but will keep spreading while the moisture remains.

Dry rot (Serpula lacrymans)

The most serious decay of all. It can travel through masonry and sound timber in search of moisture, so it demands prompt, thorough treatment and removal of the damp source.

Structural timber decay

Where floors, joists or roof timbers have been affected long-term, weakened sections are cut out and replaced with treated timber, restoring the strength of the structure.

Real results

Real timber projects across the South

Every job below is a genuine Proofterior project across Dorset, Hampshire and Wiltshire — diagnosed properly, treated at the source and finished to a lasting standard. Click any project to see the before, after and exactly how we put it right.

Spot it early

The warning signs to look for

If you recognise any of these in your home, it is worth having your timber checked properly before decay spreads.

Book a complimentary survey
  • Small round holes (1–2mm) in floorboards, joists or furniture
  • Fine, powdery bore dust beneath or around timber
  • Timber that feels soft, spongy or crumbles when pressed
  • Darkened, cracked or shrinking wood
  • A damp, musty or mushroom-like smell
  • Fine grey strands or orange-red spore dust (a sign of dry rot)
  • Springy, weak or sagging floors
  • Peeling paint over timber with damp beneath
Recent work

Our work across Dorset, Hampshire & Wiltshire

Real photos from recent Proofterior projects — every job surveyed, treated and finished by our own in-house team.

Damp and timber survey by a Proofterior specialist
Damp and timber survey by a Proofterior specialist
Timber decay caused by damp
Timber decay caused by damp
Targeted treatment for wet rot, dry rot and woodworm
Targeted treatment for wet rot, dry rot and woodworm
Structural timber repairs and reinstatement
Structural timber repairs and reinstatement
Dry, strong and protected timberwork after treatment
Dry, strong and protected timberwork after treatment
Reinstating joinery and final detailing after timber treatment
Reinstating joinery and final detailing after timber treatment
Simple, transparent process

From first call to lasting protection

1

Complimentary survey

Our specialist surveys your timber using visual inspection and moisture testing equipment.

2

Expert diagnosis

We identify the type of infestation or decay, determine its extent and find the moisture source.

3

Specialist treatment

We carry out targeted treatment and any necessary timber repairs or replacements.

4

25-year guarantee

All work is backed by our 25-year insured guarantee for complete peace of mind.

Proven methods

How we put it right

Once the cause is confirmed, we use the proven method that matches the problem — never an unnecessary blanket treatment.

Targeted woodworm treatment

Active infestations are treated with specialist preservatives that eradicate the beetle at every life stage, protecting surrounding timber from re-infestation.

Rot eradication & moisture control

We treat wet and dry rot with the correct fungicidal products and, critically, remove the moisture source feeding it so the decay cannot return.

Timber repair & replacement

Where decay has weakened the structure, affected sections are cut out and replaced with pre-treated timber, restoring strength and integrity.

Sub-floor ventilation

Improving airflow beneath suspended timber floors keeps timbers dry, preventing the damp conditions that allow rot and woodworm to take hold.

25yr
Insured guarantee on every treatment
200+
5-star reviews across Checkatrade, Google & Yell
PCA
Aligned & ISSE accredited surveyors
Vetted
Proofterior-trained specialist team
Why homeowners choose 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.

Where we work

Covering Dorset, Hampshire & Wiltshire

Local knowledge, specialist expertise and lasting protection for the home you care about.

Common questions

Everything you might be wondering

Look for small round holes (1–2mm) in timber, fine bore dust beneath the holes, and weakened or crumbling wood. A professional survey will confirm whether the infestation is active and needs treating.

Dry rot (Serpula lacrymans) can spread through masonry and sound timber and is far more destructive. Wet rot usually stays localised to the damp area. Both need professional treatment and both need the moisture source resolved.

No. Where timber is structurally sound we treat it in place. We only cut out and replace sections that have decayed to the point of losing strength — and always with pre-treated timber.

Not if the moisture behind it is resolved, which is exactly what we do. Treating the timber and fixing the damp together is what makes our work last — and it is covered by our 25-year guarantee.

Book your survey

Get clear, honest answers about your home

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.

Complimentary, no-obligation property survey
Expert diagnosis by ISSE accredited specialists
Clear written recommendations you can act on
Transparent pricing with no hidden costs
01202 287503
Step 1 of 3We'll phone you back within 5 minutes

First, who's enquiring?