Timber glazing upgrades in St Austell
Thermal and glazing upgrades to timber windows and doors you already own, so you gain performance without losing the joinery. Covering St Austell and the wider Cornwall area.
- 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
Quote for St Austell
Free measured survey in St Austell.
Timber glazing upgrades in St Austell
Misted Unit Replacement is one of those jobs in St Austell where the survey decides everything. The housing here is largely granite fishermen's cottages, slate-hung terraces and modern coastal builds, and that shapes what will actually fit. Then there is the most severe salt and wind exposure in England, which reliably produces accelerated coating failure and salt crystallisation damage at glazing lines given enough seasons. Everything we do here comes back to swapping the failed unit rather than selling you a whole window.
A surveyor visits first and records the real dimensions, at several points on each opening. Send what you have, even if it is only a phone photo, and we will take it from there.
Something particular to this area: Cornish exposure grades mean specification should assume worst-case wind-driven rain.
What we cover locally
- Retrofit Double Glazing in St Austell
- Slim Cavity Units in St Austell
- Secondary Glazing in St Austell
- Misted Unit Replacement in St Austell
Survey visits in St Austell are usually booked within a week. There is no charge for the survey and no obligation to proceed.
Made to size for St Austell
Every product below is manufactured to your dimensions.
Retrofit Double Glazing
Sealed units fitted into your existing timber sashes.
Learn more →Slim Cavity Units
Narrow-cavity glazing for conservation sightlines.
Learn more →Secondary Glazing
Independent internal glazing for heat and noise.
Learn more →Misted Unit Replacement
Failed sealed units swapped without a new window.
Learn more →Draught Sealing
Perimeter sealing on windows and external doors.
Learn more →Acoustic Glazing
Laminated and asymmetric units for noisy locations.
Learn more →Thermal Survey
Where the heat is actually going before you spend.
Learn more →Trickle Vents and Ventilation
Compliant background ventilation after sealing.
Learn more →What clients tell us
Feedback collected directly from completed projects. Full written references are available on request before you commit.
“The survey showed most of the loss was around the frames, not through the glass at all.”
Verified client, Cornwall“Half the cost of replacement and the rooms hold heat noticeably better.”
Verified client, Cornwall“They fitted trickle vents we had not thought about, which stopped the condensation.”
Verified client, CornwallSt Austell questions
Do you fit, or supply only?
Both. Supply-only is common for trade and contractor clients. For private clients we usually recommend supply and fit, because responsibility for the fit and the finish then sits in one place.
Will the finish need maintaining?
A factory-applied microporous finish typically needs inspection every three to five years, sooner on exposed coastal elevations. Maintaining it is far cheaper than letting a coating fail and the timber take up water.
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.
Do you take a deposit?
Not before the measured survey. A deposit is only requested once the survey is complete and you have approved the final schedule and price.
Can you price from drawings?
Yes. Send a drawing set or a schedule and we will price against it. If anything is ambiguous we will query it before quoting rather than assume and reprice later.
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