South Wales · Wales

Woodworm Treatment in Cardiff

Free surveys, guaranteed treatment and a 30-year certificate — from woodworm specialists who know Cardiff's Edwardian terraces and period housing across South Wales.

Free, no-obligation survey across all Cardiff postcodes
Honest advice — we tell you if it's active or historic
30-year guarantee and written treatment certificate

Call 0121 271 0061 Mon–Sun, 7am–8pm

Get your free quote

Tell us what you've noticed and where. A local woodworm surveyor will call you back to arrange a free, no-obligation survey.

Woodworm in Cardiff

Cardiff's Edwardian terraces are consistently woodworm-affected

Cardiff's Edwardian bay-fronted terraces in Pontcanna, Canton and Roath are among Wales' most woodworm-affected properties.

Cardiff's inner suburbs — Pontcanna, Canton, Roath, Splott — are dense with Edwardian and late-Victorian terraces. Damp from the Bristol Channel, high rainfall and the prevalence of suspended timber ground floors in these properties make Cardiff a consistent source of active woodworm callouts. Welsh building regulations require specialist reports for timber treatment in many listed buildings.

The common furniture beetle (Anobium punctatum) is responsible for the great majority of Cardiff infestations. In the Pontcanna, Canton and Roath terraces in particular, suspended timber ground floors combined with Bristol Channel humidity create conditions where active infestations persist across multiple beetle generations without treatment.

Local risk factors

Why Cardiff property types are at risk

Cardiff's housing stock and Atlantic climate combine to create persistent woodworm conditions.

Edwardian bay-fronted terraces

The characteristic bay-fronted terraces of Pontcanna, Canton, Roath and Splott are built with original softwood floor joists, lath-and-plaster ceilings and roof timbers that have never been treated. Bay window framing is a particular woodworm hotspot.

Bristol Channel humidity

Cardiff's proximity to the Bristol Channel and prevailing south-westerly weather gives it a reliably humid climate. Sub-floor timber moisture content in Cardiff terraces tends to be consistently in the 14–18% range — perfect conditions for active furniture beetle.

Suspended timber ground floors

The majority of Cardiff's Victorian and Edwardian terraces retain original suspended timber ground floors. Many have had airbricks blocked during subsequent building works, reducing ventilation and trapping damp in the sub-floor void.

Roath Park and Splott conversions

Larger period properties converted into flats often have shared sub-floor voids and roof spaces. Infestations in the sub-floor of a converted terrace may spread across multiple flats without any owner being aware.

Vale of Glamorgan properties

Rural and semi-rural properties in the Vale of Glamorgan often contain older structural hardwood — oak lintels and beams in farm buildings and historic houses — that may carry deathwatch beetle alongside the more common furniture beetle.

Cardiff Bay developments

Converted dock buildings and early Cardiff Bay residential properties often reuse structural timber from original dock and warehouse construction — decades-old timber that may harbour historic or active infestation.

What we do

Our woodworm service in Cardiff

One local team for the whole job — survey, treatment and a guaranteed, certificated finish.

Free Cardiff survey

A qualified surveyor visits, identifies the species, confirms active or historic, and scopes any treatment. Free for most homeowners. Book a woodworm survey.

Targeted treatment

Water-based permethrin spray for accessible softwood; boron gel for structural timber and joist ends; timber repair where damage is structural. The right method for each Cardiff property.

30-year guarantee

Written treatment certificate and 30-year guarantee — valuable for Cardiff property sales, mortgage surveys and South Wales lettings compliance.

See our full woodworm treatment service →

Where we work

Areas we cover across Cardiff

Local woodworm surveyors across South Wales, including:

Pontcanna
Canton
Roath
Splott
Penarth
Barry
Newport
Caerphilly

We cover all of Cardiff, the Vale of Glamorgan and South Wales. See areas we cover.

How it works

Our process in Cardiff

Get in touch

Tell us your Cardiff postcode and what you have noticed. We book a survey at a time that suits you.

Free survey

A surveyor inspects roof, floors and sub-floor voids, identifies the species and confirms active or historic.

Fixed written quote

Clear, fixed quote — method, timings and what the guarantee covers.

Treat & certify

Treatment — usually in a single day — then certificate and 30-year guarantee.

Woodworm treatment in Cardiff — your questions

How much does woodworm treatment cost in Cardiff?

Cardiff treatment costs typically run £300–£500+VAT for sub-floor voids in terraced properties, £400–£700+VAT for roof spaces, and £800–£2,500 for whole-property treatments. We provide a fixed written quote after a free survey. See our cost guide for full details.

Do you cover my part of Cardiff?

Yes. Our Cardiff team covers all of the city and the Vale of Glamorgan, including Pontcanna, Canton, Roath, Splott, Penarth, Barry, Newport and Caerphilly. See areas we cover.

Do Welsh building regulations affect woodworm treatment in Cardiff?

Treatment methods and materials are generally the same as in England. Where a Cardiff property is listed or in a conservation area, some additional considerations may apply — particularly around timber replacement. Our surveyors are familiar with Welsh heritage requirements and can advise accordingly.

Is the Pontcanna and Canton area particularly affected by woodworm?

Yes. The Edwardian bay-fronted terraces of Pontcanna and Canton are among the most consistently woodworm-affected housing in Wales. The combination of Bristol Channel humidity, suspended timber ground floors and original unfinished joists makes active furniture beetle infestation common — and often found during sale surveys. A free survey will tell you quickly whether the infestation requires treatment.

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