Damp can happen in ways you least expect. Maybe the paint keeps bubbling near the floor. Maybe one room always smells musty after a wet week.
Or there’s a patch that dries out for a bit, but the damp always seems to come back. Most people leave it alone until it spreads — and that’s when it gets expensive.
The issue isn’t just spotting damp. It’s finding someone who’ll check it properly and give you straight answers. Some firms turn up, glance around, and recommend treatments on the spot — whether they’re needed or not.
The best damp proofing specialist in Swindon will take the time to test things properly, explain what’s actually going on, and suggest a fix that’s right for your home.
This list features the top 10 best damp proofing specialists in Swindon UK, trusted by Swindon homeowners for their honesty, care, and lasting results.
10 Best Damp Proofing Specialists in Swindon UK
👉 Also Discover: How to Hire an Independent Damp Specialist in London
1. Renderproof House Preservation Ltd
If you’ve noticed a damp smell or staining on your walls, Renderproof is one of the longest-serving damp specialists in Swindon. With over 25 years of experience, they’re known for keeping things simple and visual, sending damp survey photos, and walking clients through what’s wrong step-by-step.
They don’t just patch things up; they diagnose and treat the source of rising damp, dry rot, and more. The company also offers full property refurbishments, so they can repair cosmetic damage after structural work.
Their work includes guarantees, and they’re known for follow-up visits to check everything stays dry. Clients often praise the team for being respectful, punctual, and honest in their assessments.
Free survey? Yes
Services Offered:
- Damp surveys
- Dry/wet rot treatment
- Woodworm control
- Structural waterproofing
- Basement tanking
- Flood damage restoration
- Venetian and solid plastering
Company Details
- Operating hours: Mon–Fri 09:00–18:00, Sat 09:00–12:00
- Established year: 1997
- Accreditation: Sovereign and Triton approved contractor
- Head Office: 14 Hughes Street, Swindon, SN2 2ER
- Email: aaron@renderproof.co.uk
- Phone: 07771 349443
- Website: renderproof.co.uk
2. Biocraft South West Ltd
Biocraft is a respected name across Swindon for professional damp surveys and specialist treatments. Their surveyors are CSRT and CSSW qualified, meaning they understand both timber decay and structural waterproofing in depth.
Clients say they explain everything from moisture levels to treatment options clearly and without pressure. The team works cleanly, uses quality materials, and always leaves the space as they found it.
They offer written guarantees and are known to follow up if there’s ever an issue. Biocraft also carries out full basement conversions — ideal if you’re making a living space below ground.
Free survey? Yes (after initial call)
Services Offered:
- Pre-purchase damp/timber surveys
- Rising & penetrating damp treatment
- Wet/dry rot treatment
- Mould & condensation control
- Basement tanking and waterproofing
- Flood damage repairs
- Full basement conversions
Details
- Operating hours: Mon–Fri 08:00–17:30, Sat 08:00–12:00
- Established year: 2005
- Accreditation: CSRT, CSSW
- Head Office: Apple Tree Cottage, Lower Bourton, Swindon, SN6 8HU
- Email: info@biocraftsouthwest.co.uk
- Phone: 01793 272085
- Website: biocraftsouthwest.co.uk
3. Norse Brickwork
Norse Brickwork is a small team with a loyal following in Swindon. They focus on traditional homes where rising damp and timber decay are common, especially older brick and stone properties.
What sets them apart is their personal, jargon-free approach. Clients report that the team explains every step of the work and leaves the site clean and safe.
They don’t rely on advertising; most of their business comes from word-of-mouth referrals. While they’re a smaller operation, their work is reliable and backed by local trust.
Free survey? Yes
👉 Also learn: What Percentage Damp Is Acceptable In Walls?
Services Offered:
- Rising damp treatment
- Penetrating damp inspection
- Timber preservation
- Damp-proof injection
- Condensation solutions
- Remedial plastering
- Minor building repair
Company Details
- Operating hours: Mon–Fri 08:00–17:00
- Established year: Not listed
- Accreditation: Not listed
- Head Office: Swindon (mobile-based service)
- Email: info@norsebrickwork.co.uk
- Phone: 07868026404
- Website: https://www.norsebrickwork.co.uk/
4. Damp Services Direct
This Swindon-based team is known for its fast response and straightforward damp treatment. Damp Services Direct offer full surveys and practical solutions — whether it’s timber/dry rot, wall condensation, or waterproofing.
Customers highlight their transparency on pricing and how smoothly the process runs from start to finish. They work quickly but thoroughly and are often praised for leaving homes clean and disruption-free.
Their services cover both domestic and light commercial properties. If you want an efficient, no-nonsense fix, they’re a popular choice.
Free survey? Yes
Services Offered:
- Damp surveys and diagnostics
- Rising damp treatment
- Timber treatment
- Wet/dry rot repair
- Structural waterproofing
Company Details
- Operating hours: Mon–Fri 08:00–17:30
- Established year: 2007
- Accreditation: City &Guilds, Institute of specialist surveyors and engineers
- Head Office: Swindon & surrounding areas
- Email: sales@dampshop-services.co.uk
- Phone: 01793 238738
- Website: https://www.dampshop-services.co.uk/
5. Severn Damp Proofing Ltd
A well-reviewed firm with 10/10 ratings across dozens of reviews, Severn Damp Proofing brings attention to detail and care to every job.
Clients appreciate that they don’t just rush into injecting chemicals — they explain the underlying causes first. They handle everything from minor damp patches to more complex basement issues.
Known for tidy workmanship, the team also provides post-completion advice to help prevent future issues. Their reputation is built on honest reporting and solid results.
Free survey? Yes
Services Offered
- Rising and penetrating damp treatment
- Wet/dry rot repair
- Woodworm treatment
- Damp-proof injection
- Basement waterproofing
- Remedial plastering
- Moisture control
Company Details
- Operating hours: Mon–Fri 08:00–17:00
- Established year: over 35 years ago
- Accreditation: BBA certified, DryBase, StormDry
- Head Office: Swidon and Neighborhood
- Email: severndampproofing@icloud.com
- Phone: 07980222830
- Website: severndampproofingltd.com/
6. PIV UK (National) Ltd
PIV UK specialises in resolving condensation and air moisture issues that typical damp-proofing companies might miss. They use Positive Input Ventilation (PIV) systems to combat high humidity and mould, particularly helpful in well-insulated but poorly ventilated UK homes.
The company operates nationally but has a strong presence in Swindon, offering free initial consultations and full surveys where needed. They’re praised for their knowledgeable engineers, respectful service, and attention to the health impact of poor indoor air.
Ideal for households dealing with persistent window condensation, musty smells, or black mould in corners. Their follow-up support is also frequently mentioned in reviews.
Free survey? Likely yes (initial consultation)
Services Offered:
- Full damp and ventilation surveys
- Condensation and mould control
- PIV system installation
- Damp-proof course work
- Penetrating damp repair
- Timber assessment
- Pre-purchase damp checks
Company Details
- Operating hours: Mon–Fri 09:00–17:00
- Established year: 2010
- Accreditation: City & Guilds Qualified – Level 3
- Head Office: Kington Langley, Chippenham, SN15 5PZ
- Email: sales@piv-uk.co.uk
- Phone: 0330 043 9449
- Website: https://piv-uk.com/
7. NMD Services
NMD Services is best known for tackling damp emergencies — whether that’s a sudden leak, pipe burst, or unexpected rising damp problem. Though newer than others on this list, they’ve earned top reviews for responsiveness, clear pricing, and tidy work.
Homeowners say the team arrives quickly, talks you through the issue clearly, and never pushes unnecessary work. NMD is a great option for urgent repairs, especially if you want damp problems contained fast before they spread.
They also provide flood recovery services, which makes them useful in older or lower-ground homes.
Free survey? Yes
Services Offered
- Emergency damp response
- Penetrating damp treatment
- Rising damp repairs
- Timber rot control
- Flood damage recovery
- Structural patching
- Dry/wet rot repair
Company Details
- Operating hours: Mon–Fri 08:00–17:00
- Established year: 2021
- Accreditation: Checkatrade member
- Head Office: Gloucester, Gloucestershire
- Email: info@nmdservices.co.uk
- Phone: 0800 6771160
- Website: nmdservices.co.uk
8. JDB Specialist Building Services
JDB is a family-run Swindon firm with over two decades of experience in handling damp, structural, and water ingress problems. They stand out by offering a full 24/7 service, which is rare in this industry.
Customers appreciate their thorough explanations, strong guarantees, and willingness to go the extra mile to get the job done right. Their damp-proofing is paired with structural fixes, so you won’t have to hire multiple trades.
They also offer floodproofing and basement sealing for homes with ongoing water entry issues. Their long-term warranties are a strong selling point.
Free survey? Yes
Tired of damp? Make sure you read👉 How to Treat Rising Damp: A Complete Guide for UK Homeowners
Services Offered
- Damp-proof injection
- Mould and condensation control
- Structural sealing
- Flood and basement proofing
- Timber treatment
Company Details
- Operating hours: 24/7
- Established year: 2000
- Accreditation: CHAS accredited
- Head Office: Poole, Dorset, United Kingdom
- Email: info@jdbspecialistbuildingservices.
- Phone: 07808 608865
- Website: jdbspecialistbuildingservices.co.uk/
9. Emerald Damp Specialists
Emerald is one of the few firms that offers a fixed-price survey — £99 + VAT — with no pressure to buy treatment services.
That makes them a reliable choice for homeowners who want clarity and independence without a hard sell. Their team is punctual, explains everything in plain English, and backs their work with up to 10-year guarantees.
Customers often mention how neat and professional the repairs are, and that the team treats your home with respect. While they charge for the survey, many feel the upfront advice is worth it.
Free survey? Only free consultation
Services Offered:
- Full damp surveys
- Wet/dry rot treatment
- Woodworm treatment
- Basement tanking
- Remedial damp-proofing
Company Details
- Operating hours: Mon–Fri 09:00–17:00
- Established year: 2016
- Accreditation: Not listed
- Head Office: Swindon area
- Email:enquiries@emeralddampspecialists.co.uk
- Phone: 01793 488708
- Website: emeralddampspecialists.co.uk/
10. Wiltshire Damp Survey
Wiltshire Damp Survey offers something different: they don’t do the treatment work themselves. That means you get fully independent advice with zero upselling.
Their surveys are especially popular with buyers and landlords because reports are comprehensive and easy to act on. They include moisture mapping, chemical/salt testing, and advice on what to fix, how, and when.
If you want a second opinion before starting work — or don’t trust a free survey from a treatment firm — this is a solid pick. It’s an investment, but it could save you from unnecessary work.
Free survey? No
Services
- Independent damp and timber surveys
- Pre-purchase damp assessments
- Structural moisture investigation
- Moisture mapping
- Condensation advice
- Written expert reports
Details
- Operating hours: Mon–Fri 09:00–17:30
- Established year: 2003
- Accreditation: Waykamol, ISSE, NEBOSH
- Head Office: 18 Church Walk North, Swindon SN25 3DJ
- Email: Web Form
- Phone: 01793 238738
- Website: wiltshiredampsurvey.co.uk/
| Company Name | Years in Business | Services (Short Form) | Free Survey | Website |
|---|---|---|---|---|
| Renderproof House Preservation Ltd | 25+ years | Damp surveys, rot & woodworm, structural waterproofing, tanking, plastering, refurb | Yes | renderproof.co.uk |
| Biocraft South West Ltd | 15+ years | Damp/timber surveys, rising damp, rot, basement tanking, conversions | Yes | biocraftsouthwest.co.uk |
| Norse Brickwork | 10+ years | Rising/penetrating damp, timber treatment, DPC injection, remedial building | Yes | https://www.norsebrickwork.co.uk/ |
| Damp Services Direct | 10+ years | Damp diagnosis, rot, timber, condensation, waterproofing, ventilation | Yes | https://www.dampshop-services.co.uk/ |
| Severn Damp Proofing Ltd | 10+ years | Damp treatment, rot, woodworm, basement waterproofing, remedial plastering | Likely yes | severndampproofingltd.com/ |
| PIV UK (National) Ltd | 20+ years | Condensation control, PIV systems, rising damp, ventilation, pre-purchase checks | Likely yes | pivuk.com |
| NMD Services | 3+ years | Emergency damp, rising/penetrating damp, rot, flood repairs, patching | Yes | nmdservices.co.uk |
| JDB Specialist Building Services | 20+ years | Damp-proofing, structural fixes, basement sealing, timber treatment, 24/7 service | Yes | jdbspecialistbuildingservices.co.uk/ |
| Emerald Damp Specialists | 8+ years | Full damp surveys, rot, tanking, woodworm, mould, basement waterproofing | Free consultation available | emeralddamp.co.uk |
| Wiltshire Damp Survey | 20+ years | Independent surveys, moisture mapping, salt/chemical analysis, reports | No | wiltshiredampsurvey.co.uk |
How to Choose the Right Damp Proofing Specialist in Swindon
Choosing the right damp expert can be the difference between a one-off fix and years of call-backs. Here’s what to keep in mind if you want the job done properly, not just quickly.
👉 Get more tips here: How to Hire an Independent Damp Specialist in London
1. Check Their Survey Approach
A proper specialist won’t skip the diagnosis. Ask if they use moisture meters, thermal imaging, or hygrometers — and if they’ll show you the readings. If someone quotes for work without lifting a floorboard or checking behind plaster, that’s a red flag.
2. Avoid Firms That Only Sell One Fix
Some companies push damp-proof injections no matter the issue. While injections help with rising damp, they do nothing for condensation or leaks. Look for a firm that offers a range of solutions and explains which one fits your situation, and why.
3. Look for Real Guarantees
A ten or twenty-year guarantee sounds good, but check what it covers. Some only apply if the original installer comes back to inspect regularly. Others exclude key areas like basements or external walls. Ask to see the terms in writing.
4. Ask If They’re Independent or Manufacturer-Tied
Independent damp surveyors often offer more balanced advice, especially if they don’t also carry out the work. If you’re being sold a treatment from a single product line, it’s worth getting a second opinion.
5. Read Local Reviews — Not Just Stars
Look at reviews from other Swindon homeowners. Are people mentioning clear explanations, clean workmanship, and long-term results? That tells you more than a perfect score ever will.
Conclusion
Damp is easy to ignore — until it spreads. And in a place like Swindon, with its mix of older housing and unpredictable weather, it pays to get it checked properly.
The best damp proofing specialist in Swindon won’t just treat symptoms. They’ll look deeper, explain clearly, and leave your home in better shape than they found it.
Start with someone on this list. They’ve earned their place by doing things right.
👉 Read more from us: Damp Proofing UK – Costs, Rules, and What You Need to Know
How to diagnose damp problems?
If you’ve noticed a musty smell, peeling paint, or patches of mould, there’s probably damp somewhere.
A surveyor who knows their stuff will check moisture levels in your walls and floors, then look into ventilation, signs of leaks, or areas that feel cold or clammy.
If they’re not sure on the spot, they might bring in tools like a thermal camera or carry out a salt test to dig deeper.
What does a damp specialist do?
They’re there to work out why your property’s holding onto moisture. It might be poor airflow, a leak, or rising damp.
After checking things properly — inside and out — they’ll explain what’s going on and what steps to take.
Some specialists handle repairs too, but others focus on the report side.
What qualifications should a damp surveyor have?
If they’ve got CSRT or CSSW next to their name, that’s a good start. It means they’ve had formal training.
It’s also worth checking if they’re part of a group like the Property Care Association.
That usually means they follow proper guidelines and keep their work to a high standard.
How to prepare for a damp survey?
Just make sure they can get to any problem areas. If furniture’s in the way, try to move it.
Let them know when you first noticed the issue and if it tends to get worse in wet weather.
There’s no need to clean up — they’re not judging the house, they’re there to figure out what’s wrong.
What do surveyors use to check for damp?
Most start with a moisture meter — it’s quick and helps show how damp a surface really is.
If something looks off or needs further checking, they might use a thermal camera to see what’s happening behind the wall.
In some cases, they may test the air or gently probe under the surface — nothing rough, just what’s needed to be sure.
