Timber glazing upgrades in Slough
Thermal and glazing upgrades to timber windows and doors you already own, so you gain performance without losing the joinery. Covering Slough and the wider Berkshire 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 Slough
Free measured survey in Slough.
Timber glazing upgrades in Slough
Most Slim Cavity Units enquiries we take in Slough start with an opening that is not a standard size. Given the Thames-side villas, Victorian terraces and dense 1980s commercial fit-out stock that dominates locally, standard sizes are the exception not the rule. The exposure here is river humidity and localised flood exposure, which is exactly the condition that causes swelling and binding on ground-floor doors after flood or high water table events. The detail we will not compromise on is narrow cavities that perform while keeping the sightline historic.
We survey before anything is cut, so the schedule reflects the opening as built rather than as drawn. Rough dimensions and a couple of photographs are enough for us to price it properly.
Worth knowing locally: flood-zone properties benefit from raised thresholds and marine-grade fixings.
What we cover locally
- Retrofit Double Glazing in Slough
- Slim Cavity Units in Slough
- Secondary Glazing in Slough
- Misted Unit Replacement in Slough
Survey visits in Slough are usually booked within a week. There is no charge for the survey and no obligation to proceed.
Made to size for Slough
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, Berkshire“Half the cost of replacement and the rooms hold heat noticeably better.”
Verified client, Berkshire“They fitted trickle vents we had not thought about, which stopped the condensation.”
Verified client, BerkshireSlough questions
How do you handle glazing?
Standard double glazed units for most work, and slim-cavity units where a conservation officer has restricted sightlines. Single glazing with putty lines is available where the consent requires it.
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.
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.
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.
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