Thermal Survey in Greater London
Where the heat is actually going before you spend. Manufactured to size and delivered across Greater London.
- 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
Thermal Survey in Greater London
Free survey and fixed written price.
Thermal Survey across Greater London
Thermal Survey is one of those jobs in Greater London where the survey decides everything. Given the Victorian and Edwardian terraces, mansion blocks and post-war infill that dominates locally, standard sizes are the exception not the rule. The other factor is high pollution load and sheltered urban humidity, which is why paint failure on south-facing sashes and rot at the bottom rail is the most common reason people call us. The detail we will not compromise on is measuring where heat is going before anyone recommends a spend.
A surveyor visits first and records the real dimensions, at several points on each opening. Get in touch and we will be straight with you about cost and timescale.
Worth knowing locally: large numbers of properties sit in conservation areas with like-for-like replacement conditions.
Towns covered
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, 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 LondonWhat 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
Do you cover Greater London?
Yes. We cover the whole of Greater London including Croydon, Bromley, Ealing, Enfield and the surrounding villages. Large numbers of properties sit in conservation areas with like-for-like replacement conditions. Because high pollution load and sheltered urban humidity, we allow for it at survey stage rather than discovering it on the day.
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 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.
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.
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.
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