Slim Cavity Units in North Wales
Narrow-cavity glazing for conservation sightlines. Manufactured to size and delivered across North Wales.
- 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
Slim Cavity Units in North Wales
Free survey and fixed written price.
Slim Cavity Units across North Wales
What makes Slim Cavity Units work in North Wales is usually invisible once it is finished. Around here it is slate-quarry terraces, Victorian resort stock and stone farmhouses, and that alone rules out anything bought by the pallet. Then there is severe Irish Sea exposure with very high rainfall, which reliably produces salt and rain combining to strip finishes and open glazing joints given enough seasons. The detail we will not compromise on is narrow cavities that perform while keeping the sightline historic.
A surveyor visits first and records the real dimensions, at several points on each opening. Rough dimensions and a couple of photographs are enough for us to price it properly.
One thing that catches people out here: Llandudno's Victorian frontages are protected as a coherent conservation set.
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, North Wales“Half the cost of replacement and the rooms hold heat noticeably better.”
Verified client, North Wales“They fitted trickle vents we had not thought about, which stopped the condensation.”
Verified client, North WalesWhat 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 North Wales?
Yes. We cover the whole of North Wales including Wrexham, Rhyl, Bangor, Colwyn Bay and the surrounding villages. Llandudno's Victorian frontages are protected as a coherent conservation set. Because severe Irish Sea exposure with very high rainfall, we allow for it at survey stage rather than discovering it on the day.
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.
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.
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