Timber glazing upgrades in Barnet
Thermal and glazing upgrades to timber windows and doors you already own, so you gain performance without losing the joinery. Covering Barnet and the wider Greater London 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 Barnet
Free measured survey in Barnet.
Timber glazing upgrades in Barnet
Draught Sealing around Barnet is a different job from one street to the next. Given the Victorian and Edwardian terraces, mansion blocks and post-war infill that dominates locally, standard sizes are the exception not the rule. Because of high pollution load and sheltered urban humidity, we see paint failure on south-facing sashes and rot at the bottom rail more often here than in most of the country. Our focus on this is sealing the perimeter without making anything stiff to open.
Every job is measured on site first, because drawn sizes and built sizes are seldom the same. Send what you have, even if it is only a phone photo, and we will take it from there.
A local consideration we always raise: large numbers of properties sit in conservation areas with like-for-like replacement conditions.
What we cover locally
- Retrofit Double Glazing in Barnet
- Slim Cavity Units in Barnet
- Secondary Glazing in Barnet
- Misted Unit Replacement in Barnet
Survey visits in Barnet are usually booked within a week. There is no charge for the survey and no obligation to proceed.
Made to size for Barnet
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, Greater London“Half the cost of replacement and the rooms hold heat noticeably better.”
Verified client, Greater London“They fitted trickle vents we had not thought about, which stopped the condensation.”
Verified client, Greater LondonBarnet questions
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 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 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.
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 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.
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