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Proofterior
Decayed floor timbers exposed during a subfloor investigation
Specialist service

Timber Treatment — Rot, Woodworm and Structural Repair

Where damp has already reached the structure.

Covering Dorset · Hampshire · Wiltshire

Book a survey for this issue

1/3

Takes under a minute. A qualified surveyor attends — never a salesperson.

What are you seeing in the property?

No obligation, no sales visit. Your details are used only to arrange the survey.

The problem

Damp that has been present long enough stops being a decorating problem and becomes a structural one. Joist ends bearing into wet walls, bressummers over bay windows, cellar head timbers and suspended ground floors are the places we find serious decay most often.

We open up, identify the organism, establish how far it has travelled and repair the structure — then eliminate the moisture that allowed it. Treatment without that last step is money wasted.

Proofterior technician at work
How we handle it

From first reading to registered guarantee

The same five stages on every job, whether it is one wall or a whole property.

  1. 01

    Open up and inspect

    Floors lifted, hatches opened and timbers probed to find the true extent — decay is always wider than it looks.

  2. 02

    Identify the organism

    Dry rot, wet rot or insect attack each have different spread behaviour and a different specification.

  3. 03

    Cut back and repair

    Affected timber removed beyond the decay front, replaced in treated structural grade timber.

  4. 04

    Treat and isolate

    Fungicidal or insecticidal treatment plus DPC membranes to isolate new timber from masonry.

  5. 05

    Remove the moisture

    Ventilation restored, airbricks reopened, the damp mechanism corrected so decay cannot resume.

What is included

Everything this specification can cover

Your quotation lists only what your property needs. Anything not required is simply not on it.

Decayed floor timbers exposed during a subfloor investigation
  • Structural timber inspection and probing
  • Joist end, bearer and plate replacement
  • Fungicidal and insecticidal treatments
  • Sub-floor ventilation and airbrick reinstatement
  • Concrete and steel structural support where required
  • Floor relaying and reinstatement
Questions

Timber Treatment — answered

More urgent than wet rot. Dry rot can travel through masonry and behind plaster to find new timber, so a small visible outbreak may already have colonised joists in the next room. It should be investigated promptly.

No. We lift enough boards to establish extent and reach the affected members, and we relay them. Full relaying is only specified where the decking itself has gone.

Not always. Where the moisture source is removed and the decay is wet rot, replacement plus drying may be sufficient. Dry rot and active woodworm normally do require treatment.

Decayed floor timbers exposed during a subfloor investigation
Complimentary survey

Get a written diagnosis before anyone quotes for timber treatment

A qualified surveyor attends, tests properly and writes it down. No obligation, no sales visit, no charge.

Dorset · Hampshire · Wiltshire