What do skylight repairs & leak fixes in Penzance involve?
Thinking about skylight repairs & leak fixes in Penzance? The short answer: leak tracing, resealing, actuator repairs and glass replacement. The longer answer depends on your roof, which is why we survey before we price.
Western coasts take wind-driven rain, so we pay close attention to upstand height and flashing laps on exposed roofs. Typical uses for skylight repairs & leak fixes include leaks, condensation, misted units and failed actuators.
Penzance is around 38 km from Truro, and we survey and fit throughout that part of Cornwall, including the TR18 district.
What you can choose
- Actuator, motor and control repairs
- Resealing and re-flashing
- Planned maintenance visits
- Glass unit replacement
- Condensation diagnosis
- Storm and impact damage
- Honest repair-or-replace advice
Things we check at survey
- Commercial roofs need access and fall protection
- Parts availability varies with the age of the unit
Planning and building rules for Penzance
In England a rooflight on a house is usually permitted development under Class C if it projects no more than 150 mm beyond the roof slope and sits no higher than the ridge. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
Our planning guide covers each nation in more detail.
What do skylight repairs & leak fixes cost in Penzance?
These are typical supply-and-fit ranges. For an address in Penzance, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Glass unit or actuator replacement | £595 – £1,555 | £495 – £1,295 |
| Upstand or membrane repair Typical | £355 – £955 | £295 – £795 |
| Diagnostic visit and reseal | £235 – £475 | £195 – £395 |
How the job runs
- Tell us what you have. Send the TR18 postcode, a rough size and a couple of photos.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
Related work in Penzance
Questions about skylight repairs & leak fixes in Penzance
Why is my skylight leaking?
Common causes are a failed seal, a membrane that has split or lifted at the upstand, a low upstand, blocked drainage or condensation mistaken for a leak.
Can you repair an electric rooflight that will not open?
Often, yes — actuators, controllers and rain sensors can be replaced if parts are available.
Do you repair roof windows too?
Yes — flashings, seals, hinges and glass on pitched roof windows.
Can you work alongside my builder in Penzance?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
How do I book a survey in Penzance?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
