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Timber Joinery Company Timber Joinery Company Crafted with care · Built to last
Cornwall

Slim Cavity Glazing in Cornwall

Double glazing within a historic sightline. Manufactured to size and delivered across Cornwall.

  • Made to size from a measured survey, never cut down from stock
  • FSC-certified timber with chain-of-custody paperwork
  • Fixed written quotation with the lead time stated
  • 10-year workmanship guarantee in writing

Free measured survey · No obligation · Reply within one working day

Slim Cavity Glazing in Cornwall

Free survey and fixed written price.

Free, no-obligation. We reply within one working day.

10-year workmanship guaranteeFree measured surveyFSC-certified timberUK-wide deliveryFixed-price quotations

Slim Cavity Glazing across Cornwall

If Slim Cavity Glazing in Cornwall were straightforward, there would be a stock size for it. Given the granite fishermen's cottages, slate-hung terraces and modern coastal builds that dominates locally, standard sizes are the exception not the rule. What accelerates it is the most severe salt and wind exposure in England, and accelerated coating failure and salt crystallisation damage at glazing lines follows sooner than owners expect. What you are paying for is getting a sealed unit into a historic sightline without bulking it out.

Nothing goes into manufacture until a surveyor has checked each opening on site. Rough dimensions and a couple of photographs are enough for us to price it properly.

One thing that catches people out here: Cornish exposure grades mean specification should assume worst-case wind-driven rain.

Towns covered

Replication, not approximation

Profiles copied from the surviving original, section by section.

Drawings for consent

Measured section drawings supplied to accompany a listed building application.

Conservation glazing

Slim-cavity units and genuine putty lines where the consent requires them.

Fabric retained where possible

We splice and repair before we replace, because the original is the point.

★★★★★

What clients tell us

Feedback collected directly from completed projects. Full written references are available on request before you commit.

“The conservation officer approved the sections first time, which had not happened with the previous applicant.”

Verified client, Cornwall

“They spliced the original cill rather than replacing it, which was exactly what we wanted.”

Verified client, Cornwall

“The putty lines look right, and from the street you cannot tell which windows are new.”

Verified client, Cornwall

What happens next

Four steps from first call to installed joinery. No pressure at any stage.

  1. Record the original

    We measure and draw the surviving joinery before anything is removed.

  2. Drawings and consent

    Section drawings prepared to support your application.

  3. Replication

    Made to the recorded profile in matching species.

  4. Careful installation

    Fitted with minimal disturbance to surrounding historic fabric.

Frequently asked questions

Do you cover Cornwall?

Yes. We cover the whole of Cornwall including Truro, Falmouth, Newquay, St Austell and the surrounding villages. Cornish exposure grades mean specification should assume worst-case wind-driven rain. Because the most severe salt and wind exposure in England, we allow for it at survey stage rather than discovering it on the day.

Do you work in hardwood or softwood?

Both. Engineered hardwood is the default where movement or exposure is a concern, and slow-grown softwood is often the better value choice for painted work in sheltered positions. We will tell you which we would specify and why.

Is the timber certified?

All our stock is FSC certified and chain-of-custody documentation is supplied with the order, which most main contractors and specifiers now require for their records.

What guarantee do you provide?

Ten years on workmanship, covering manufacture and the factory-applied finish. Where we install, the installation is covered too. It is issued in writing with the handover paperwork.

Can you work on a listed building?

Yes, and a significant share of our work is listed or conservation area. We can supply drawings and section details to support a listed building consent or planning application, though the consent itself remains the owner's responsibility.

Talk to us about your project

Free, no obligation, and a fixed figure in writing. We will tell you honestly if what you are asking for is not the right answer.

Request a quote Call 0800 088 6248
Call 0800 088 6248 Get a quote