Dry rot can spread through structural timbers quickly if conditions allow it to develop. Timberwise provides professional dry rot treatment in Cardiff, stopping fungal growth and restoring the strength of affected wood. Our priority is eliminating the cause and protecting your property long term. Since 1968, Timberwise has treated timber decay using proven methods supported by PCA accreditation and long-term guarantees.
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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
Our PCA-qualified surveyors and technicians cover the entirety of Cardiff and its surrounding areas, meaning that we can help no matter where you are located.
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...
Signs of Dry Rot and Wet Rot
Timber decay is not always immediately obvious, particularly in concealed areas such as under floors or within roof spaces. Homeowners commonly notice:
- Cracking, brittle or cuboidal (block-like) timber surfaces
- Darkened or softened wood that feels spongy under pressure
- Fungal growth, including grey or white strands spreading across timber or masonry
- A persistent musty smell in enclosed or poorly ventilated spaces
- Localised movement in floors, skirting boards or door frames
Dry rot is often associated with shrinking, cracking timber and visible fungal strands that can travel beyond the original moisture source. In contrast, wet rot is typically confined to areas where timber remains consistently damp, leading to softening and gradual loss of strength.
Wet & Dry Rot Control Cardiff
Effective rot treatment involves more than applying chemicals. Our damp and dry rot control strategies focus on resolving the underlying moisture conditions that allowed decay to develop.
Wet rot typically develops where timber remains consistently damp. While generally more localised than dry rot, it still requires targeted repair and improved moisture control.
We remove affected timber where necessary and treat surrounding areas to prevent recurrence. This integrated approach reduces the risk of future outbreaks.
What Happens After a Dry Rot Survey?
Once the survey is complete, we explain our findings clearly and without technical jargon. You’ll understand exactly what type of decay is present, how far it has spread and what is causing it.
If treatment is required, we provide a straightforward specification outlining the recommended repairs and why they are necessary with a no-obligation quote. Our focus is always on proportionate solutions, addressing the source of moisture, removing compromised timber where needed and protecting surrounding areas to prevent recurrence.
Where no active rot is found, we’ll tell you. Honest diagnosis is central to how we work. With Timberwise, you move forward with clarity, not uncertainty.
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.
Timber treatment costs depend on the cause and extent of the rot 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!
Dry rot is a more aggressive form of fungal decay that can spread through timber and, in some cases, across masonry when moisture conditions allow it to develop. Wet rot is generally confined to areas where timber remains persistently damp and does not spread in the same way.
Dry rot can spread beyond visibly affected timber if moisture conditions remain favourable. Quick treatment is important to prevent wider structural damage to your property.
Not always. Replacement is only recommended where timber has lost its structural integrity. In some cases, treatment and localised repair may be enough to resolve the issue.
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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