Persistent damp can affect comfort, appearance and long-term structural health. Timberwise provides professional damp proofing in Cardiff, delivering practical solutions designed to protect your home and prevent further deterioration. As experienced damp specialists, we understand that no two properties behave in exactly the same way. Our PCA-accredited surveyors carry out detailed inspections to determine the cause of damp before recommending targeted treatment.
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We Cover The Following Areas in Cardiff:
- Cardiff (all districts and suburbs)
- Abercynon
- Aberdare
- Barry
- Beddau
- Blackwood
- Bargoed
- Bridgend
- Caerphilly
- Church Village
- Cowbridge
- Cwmbran
- Dinas Powys
- Ebbw Vale
- Ferndale
- Hengoed
- Llanbradach
- Llanedeyrn
- Llanharan
- Llanrumney
- Maesteg
- Merthyr Tydfil
- Mountain Ash
- Nelson
- Newport (Gwent)
- Pencoed
- Penarth
- Pontllanfraith
- Pontypridd
- Porth
- Porthcawl
- Rhondda
- Risca
- Rhoose
- Rumney
- Senghenydd
- Tonypandy
- Tredegar
- Treherbert
- Treharris
- Treorchy
- Ystrad Mynach
Can’t find your area? Just call our team to see if we cover you, or check our full list of locations here.
Why Choose Timberwise?
Local Cardiff-Based Team
Certified Property Care Specialists
We are members of the Property Care Association, and endorsed by Which? Trusted Traders, as well as being members of Checkatrade, and Trustmark.
Long-Term Guarantees
To give long-term peace of mind, all Timberwise damp proofing and timber treatments carry a 20-year guarantee, and completed basement waterproofing installations are backed by a 10-year guarantee.
Proven Results in Cardiff Properties
Whether you live in an older terraced home, a modern loft or basement conversion, or a listed building, our local team of surveyors and technicians can help.
What Our Customers Say
Read feedback from homeowners who have recieved a survey from Timberwise
Dry Rot Treatment in a Terraced Property in Cardiff
Client: Domestic Our client, a homeowner in Cardiff, contacted Timberwise to conduct dry rot treatment...
Conducting Damp Repairs in a Herne Bay Flat
Client: Domestic Our client, a homeowner in Cardiff, contacted Timberwise to consult on the condition...
Surveying for Dry Rot and Damp in Llandysul, Wales
Client: Domestic Timberwise was given instructions to survey this property, with a specific request to...
Recent Projects by Timberwise in Cardiff
Dry Rot Treatment in a Terraced Property in Cardiff
Client: Domestic Our client, a homeowner in Cardiff, contacted Timberwise to conduct dry rot treatment...
Conducting Damp Repairs in a Herne Bay Flat
Client: Domestic Our client, a homeowner in Cardiff, contacted Timberwise to consult on the condition...
Surveying for Dry Rot and Damp in Llandysul, Wales
Client: Domestic Timberwise was given instructions to survey this property, with a specific request to...
Common Damp Problems We Address
Damp problems in Cardiff can present in several forms, each requiring a different approach. Homeowners often contact us when they notice the following issues:
- Tide marks and staining on internal walls
- Peeling paint or damaged plaster
- Musty odours and condensation build-up
- Deterioration or rot in internal timber
Accurate diagnosis ensures the right treatment is applied from the outset. Our surveyors assess moisture levels, building construction, basement waterproofing courses, and ventilation to determine the most effective course of action.
Damp and Timber Treatment in South Wales
Where moisture has begun to affect structural timbers, a combined damp and timber treatment approach may be required. This ensures both the source of damp and any resulting timber decay are properly addressed.
If specialist fungal treatment or insect control is needed, this is handled by our qualified timber decay specialists. They focus on preserving timber affected by woodworm or dry rot wherever they can, minimising disruption to your property as much as possible.
A Structured Approach to Property Care
Timberwise Cardiff provides more than surface-level repairs. Our property care service focuses on resolving underlying moisture issues and restoring affected areas safely and effectively.
If you’ve noticed signs of damp in your Cardiff property, early intervention can prevent more extensive structural repairs later. Established in 1968, we have decades of experience protecting homes from damp-related damage. Following your survey, you’ll receive clear findings, straightforward advice and a solution tailored to your property.
Signs such as staining, damaged plaster or persistent musty smells may indicate damp. A professional survey confirms the cause and whether treatment is required.
Whilst we often have same-week availability in Cardiff, it can be dependant on demand. Call 02920 290 558 to speak to us and find the earliest survey appointment that works for you.
Treatment costs depend on the cause and extent of the problem in the property. You will receive a written report following your survey that will include a clear quote for any recommended remedial works.
Of course – no matter if you are in the dead centre of Cardiff, or outside the city entirely, our team are going to be able to help. We cover the entire South Wales area, so if you need a survey, just get in touch!
Yes. Where damp has impacted structural timber, we provide appropriate damp and timber treatment solutions.
Most damp proofing work is planned to minimise disruption. Your surveyor will explain what’s involved before work begins.
Yes. Our team in Cardiff is PCA-qualified, and Timberwise is endorsed by Which? Trusted Traders. For more information on our different qualifications and endorsements, you can visit our accreditations page here.
Yes, Timberwise offer guarantees on completed work, with different levels of guarantee applied to different types of work.
Damp proof coursing has a guarantee of 20 years, timber treatments have a guarantee of 20 years, and completed basement waterproofing works have a guarantee of 10 years.
For a full list of Timberwise guarantees, and the relevant terms and conditions, visit our guarantee page here.
Of course. Across Cardiff and South Wales we routinely treat Victorian and Edwardian homes, city-centre flats, commercial properties, modern housing and listed buildings. Our team coordinates access with building management and takes care of parking and permit arrangements where required.
Yes, we are ready to work with landlords, estate agents, or anyone within the property chain. We can liase with whoever is in charge of the property to ensure that all works are completed on time whilst minimising disruption for any tenants in the property.
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