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Damp proofing specialists in Swansea

The 10 damp proofing specialists from Google's results for Swansea, ranked on Google rating, online presence and other factors. Updated 10 September 2026.

Damp survey
£135 – £270independent, not free
Injected damp course
£270 – £910per wall
Basement tanking
£1,800 – £4,600small cellar
Swansea vs UK
-9%well below the UK median

Wales has run its own planning system since 2016 and permitted development rights differ from England.

Number 1: Dampproofing Swansea

5.0(92)out of 5, from 92 reviewson GoogleMorriston, Swansea

Pioneer Damp Proofing and Timber Treatments identifies and treats damp and timber problems across Morriston, Swansea, Neath, and Port Talbot. Services cover both domestic and commercial properties throughout the Swansea Valley and Llanelli. Estimates are provided for local property owners.

01792 348244 30 Bath Ave, Morriston, Swansea SA6 7AW

Number 2: Nordic Damp Proofing

5.0(4)out of 5, from 4 reviewson GoogleCardiff

Nordic Damp Proofing carries out rising damp treatments, masonry inspections and damp proof course installations for residential properties. Recent projects include resolving salt contamination and moisture damage on kitchen walls in Swansea.

0330 191 6624 4th Floor, 14 Museum Pl, Cardiff CF10 3BH

Number 3: Damp Proofing In Swansea

5.0(1)out of 5, from 1 reviewson GoogleSwansea

Damp Proofing In Swansea, trading as Swansea Damp Co, addresses damp problems and mould growth for property owners across Swansea and South Wales. Work focuses on identifying damp issues early to prevent subsequent structural damage to buildings.

01792 202497 Unit 4A Cwm Rd, Swansea SA1 2AY

Number 4: Damp Surveyors

4.6(22)out of 5, from 22 reviewson GoogleSwansea

Damp Surveyors undertakes damp diagnosis and produces survey reports for properties of all sizes across South Wales. The firm investigates potential damp issues highlighted in homebuyers reports or house valuations. Services cover both online and telephone bookings.

07456 335337 Salubrious Pl, Swansea SA1 3RT

Number 5: Rh Dampproofing

3.7(6)out of 5, from 6 reviewson GoogleSwansea

RH Damp Proofing supplies damp proofing treatments for residential properties in Swansea, Llanelli, and Gorseinon. Services include structural tanking, woodworm eradication, and solutions for rising damp, wet rot, and dry rot.

01792 641417 31 Richardson St, Swansea SA1 3JF

Number 6: White Rock Property Care

4.1(23)out of 5, from 23 reviewson GoogleSwansea

White Rock Property Care delivers damp diagnosis, treatment, and building restoration across South Wales. Operating from Swansea, coverage extends to Carmarthenshire, Cardiff, Newport, Pembrokeshire, and surrounding areas. Services focus on resolving damp and property preservation issues.

01792 461235 Morfa Industrial Estate, Sears House Unit 18 Alamein Road, 3 Alamein Rd, Swansea SA1 2HY

Number 7: Jb Plastering Swansea

3.8(10)out of 5, from 10 reviewson GoogleSwansea

JB Plastering Swansea carries out damp proofing, tanking, and general plastering throughout Swansea and South Wales. Treatments include damp proof course injection, anti-sulphur wall applications, and waterproof sand and cement rendering to address rising and penetrating damp.

07745 733070

Number 8: Rees Bros Swansea Ltd

2.0(4)out of 5, from 4 reviewson GoogleHafod, Swansea

Rees Bros Swansea Ltd specialises in damp proofing and moisture control for residential and commercial properties in Hafod and Swansea. The company addresses rising damp, condensation, mould, woodworm, and wet or dry rot, providing initial site inspections.

01792 202497 Unit 2, 4A Cwm Rd, Hafod, Swansea SA1 2AY

Number 9: UK Damp Surveys

No Google reviews yetSwansea

UK Damp Surveys conducts independent damp and timber inspections for homeowners, buyers, and mortgage lenders. Surveys diagnose rising damp, condensation, dry rot, and woodworm infestations. Inspections include detailed timber evaluations to identify structural decay.

Number 10: Damp Proofing

No Google reviews yetSwansea

Dampshield South Wales provides damp proofing, condensation control, and structural preservation in Swansea. Services include cavity wall insulation removal, wall tie replacements, tanking, and timber decay treatments for local homeowners.

What damp proofing specialists charge in Swansea

In Swansea, damp survey typically costs £135 – £270. Labour in Swansea runs 9% below the UK median, which accounts for most of the difference from the same job elsewhere.

How to choose between them

  • Check the registration yourself. Trade body memberships are public, and each body's own register confirms them in a minute.
  • Get three quotes on the same specification. Written down, split into labour, materials and anything structural. Most people compare a total against a total and end up choosing between two different jobs.
  • Ask what is not included. Making good, waste removal, scaffolding and VAT are the four that turn a cheap quote into an average one.
  • Never pay a large deposit up front. Materials in advance is normal. Half the total before anyone turns up is not.

How this list is ordered

These are the firms from Google's results for "damp proofing swansea". They are ranked on Google rating, online presence and other factors.

Work out the budget first

The figures above are Swansea ranges. These explain what drives them, so you can read a quote properly.

Damp proofing specialists in Swansea: common questions

Is rising damp as common as damp proofing firms suggest?

No. Most diagnosed rising damp turns out to be condensation, a leaking gutter or a bridged damp course, none of which need injection. Pay for an independent survey from someone who is not quoting for the remedial work.