Timber glazing upgrades in Launceston
Thermal and glazing upgrades to timber windows and doors you already own, so you gain performance without losing the joinery. Covering Launceston 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 Launceston
Free measured survey in Launceston.
Timber glazing upgrades in Launceston
People come to us about Slim Cavity Units in Launceston once the cheap option has already failed. Most of what we survey locally is granite fishermen's cottages, slate-hung terraces and modern coastal builds, which is not built to any modern module. The exposure here is the most severe salt and wind exposure in England, which is exactly the condition that causes accelerated coating failure and salt crystallisation damage at glazing lines. Our focus on this is narrow cavities that perform while keeping the sightline historic.
The measuring is done by the people responsible for the fit, which concentrates the mind. One call is usually enough for us to tell you roughly where the price will land.
A detail specific to this area: Cornish exposure grades mean specification should assume worst-case wind-driven rain.
What we cover locally
- Retrofit Double Glazing in Launceston
- Slim Cavity Units in Launceston
- Secondary Glazing in Launceston
- Misted Unit Replacement in Launceston
Survey visits in Launceston are usually booked within a week. There is no charge for the survey and no obligation to proceed.
Made to size for Launceston
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, CornwallLaunceston questions
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.
What if the opening is out of square?
Most older openings are. The survey records the actual dimensions at several points and the unit is manufactured to suit, which is the main reason we survey rather than work from the sizes given over the phone.
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.
How long does a typical order take?
Most made-to-size orders run six to ten weeks from survey to delivery. Conservation and heavily detailed work can take longer, and we confirm the lead time in writing at quotation rather than leaving it open.
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