Timber glazing upgrades in Lewisham
Thermal and glazing upgrades to timber windows and doors you already own, so you gain performance without losing the joinery. Covering Lewisham 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 Lewisham
Free measured survey in Lewisham.
Timber glazing upgrades in Lewisham
Nothing about Draught Sealing in Lewisham is settled until someone has been on site. Local stock is dominated by Victorian and Edwardian terraces, mansion blocks and post-war infill, which sets the sizes and profiles we work to. Set against high pollution load and sheltered urban humidity, most joinery here eventually shows paint failure on south-facing sashes and rot at the bottom rail. Where we put the effort is sealing the perimeter without making anything stiff to open.
The survey happens before manufacture, which is why our units fit without packing or trimming. Tell us the problem rather than the solution and we will advise on both.
Worth knowing locally: large numbers of properties sit in conservation areas with like-for-like replacement conditions.
What we cover locally
- Retrofit Double Glazing in Lewisham
- Slim Cavity Units in Lewisham
- Secondary Glazing in Lewisham
- Misted Unit Replacement in Lewisham
Survey visits in Lewisham are usually booked within a week. There is no charge for the survey and no obligation to proceed.
Made to size for Lewisham
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 LondonLewisham 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.
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.
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.
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 deliver nationwide?
Yes, we deliver across England, Wales and Scotland. Delivery is priced into the quotation so there is no separate charge added 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