Secondary Glazing, made to size
Independent internal glazing for heat and noise. Thermal and glazing upgrades to timber windows and doors you already own, so you gain performance without losing the joinery.
- 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
Price this up
Tell us sizes and we will quote in writing.
What we do and how we do it
The Secondary Glazing we make for the UK is set out from a survey, not a size chart. The building stock is a mix of period and modern stock, so we expect variation before we ever pick up a tape. The weather does the rest: the full range of UK exposure conditions here, and coating failure followed by rot at the joints as the predictable result. Our focus on this is internal glazing that leaves the original window entirely untouched.
A surveyor visits first and records the real dimensions, at several points on each opening. We will price it properly in writing, and we will tell you if it is not worth doing.
Worth knowing locally: specification should always be matched to local exposure.
Specification
- Engineered hardwood or slow-grown softwood, FSC certified
- Factory-applied microporous finish in any RAL or heritage colour
- Sealed units, slim-cavity units or single glazing with putty line
- Manufactured to survey dimensions, not to a stock size chart
- Delivered UK-wide with chain-of-custody paperwork
Keep the joinery you have
Upgrade performance without throwing away sound timber windows.
Cheaper than replacement
Typically a fraction of the cost of new units, with much of the benefit.
Measured before recommended
We find where the heat is actually going before suggesting a spend.
Ventilation kept compliant
Sealing a house up without creating a condensation problem.
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, UK-wide“Half the cost of replacement and the rooms hold heat noticeably better.”
Verified client, UK-wide“They fitted trickle vents we had not thought about, which stopped the condensation.”
Verified client, UK-wideWhat happens next
Four steps from first call to installed joinery. No pressure at any stage.
Thermal survey
We identify where the losses actually are, which is often not the glass.
Options and costs
Retrofit, secondary or seals only, priced side by side.
Installation
Carried out in situ, room by room, with minimal disruption.
Aftercare
Ventilation checked and maintenance guidance left with you.
Frequently asked questions
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.
Can you match an existing profile?
Yes. If you can supply a section, a photograph with a rule in shot, or an old unit, we can replicate the profile. For conservation work this is usually the condition the planning officer will apply.
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.
Do you deliver nationwide?
Yes, we deliver across England, Wales and Scotland. Delivery is priced into the quotation so there is no separate charge added later.
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.
Secondary Glazing by county
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