Specialist Service
Damp Proofing
Eliminate rising and penetrating damp for good. Professional diagnosis, proven chemical DPC systems and a 10 Year Guarantee — from Pembrokeshire's longest-serving damp specialists.

Damp proofing is the single most effective measure for stopping rising damp from undermining the structure, decoration and health of your home. Left alone, it doesn't stay still — it spreads through plaster, timber and masonry, and the longer it's ignored the more expensive it becomes to put right.
Over three-and-a-half decades we've damp-proofed every kind of Pembrokeshire property, from exposed coastal cottages and Victorian terraces to modern builds. Every job starts with an professional, no-pressure survey using moisture meters and salt analysis, so you know exactly what's causing the problem before any work is agreed — not every damp patch needs a full damp-proof course, and we'll tell you if yours doesn't.
Where a new chemical DPC is the right fix, we inject a BBA certificated chemical damp proof course into the mortar bed, forming a continuous barrier that controls moisture rising through the mortar beds. Affected plaster is then renewed with a salt-resistant render system designed to keep residual ground salts from bridging back through to your decoration.
What's included
- Full moisture-meter survey
- Clear written report and fixed-price quotation before any work starts
- Injected chemical damp-proof course to all affected walls
- Aftercare guidance and a 10 Year Guarantee on completion
Warning signs
When to call us
- Tide marks or staining on internal walls
- Peeling paint, wallpaper or blown plaster
- White, powdery salt deposits (efflorescence)
- Damp skirting boards or a persistent musty smell
- Crumbling render or perished mortar joints at low level
What you gain
Benefits of treatment
- Stops rising damp at its source, not just the symptoms
- Protects plaster, timber and decoration from further damage
- Improves indoor air quality and warmth
- Protects and can increase your property's resale value
- 10 Year Guarantee with QANW Insurance Backed Guarantee available
- Straightforward, minimally disruptive installation
Our process
How we work
- 01
Survey
Qualified Assessment on site, with moisture meter readings and salt analysis — no obligation, no pressure.
- 02
Written report
Clear findings, photographs and a fixed-price quotation you can take time to consider.
- 03
Treatment
Chemical DPC injection, with salt-resistant replastering where required.
- 04
Guarantee
Aftercare advice and a 10 Year Guarantee handed over on completion, with QANW Insurance Backed Guarantee available.
Common questions
Damp Proofing FAQs
Our work
Recent damp proofing jobs



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1/4Damp Proofing



1/4Damp Proofing
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Concerned about damp, timber decay or condensation? Send us an enquiry with a few details and we'll come back to you with professional, expert advice — backed by 35+ years serving Pembrokeshire.
