Dome rooflights in St Austell: what is involved?
Thinking about dome rooflights in St Austell? The short answer: polycarbonate and acrylic domes for flat roofs, new or replacement. The longer answer depends on your roof, which is why we survey before we price.
Holiday lets and second homes across the South West often want roof windows with blinds and remote opening for when the house is empty. In St Austell, as anywhere, dome rooflights are the usual choice for older flat roofs with yellowed or leaking domes.
Neighbouring towns include Bodmin (15 km) and Truro (22 km). We offer a survey date when we reply to your enquiry.
Specification options
- Polycarbonate or acrylic
- Clear, opal or tinted
- Insulated PVC or GRP upstands
- Fixed or hinged with vent
- Twin, triple or quad skin
- Quick replacement on existing upstands
- Low cost per unit
What to check first
- Plastic domes have a lower acoustic and thermal performance than glass
- Old domes may be fragile — treat as fragile until checked
Rules and responsibilities in St Austell
On commercial roofs the main questions are usually building control, fire classification of rooflight materials and safe access rather than householder permitted development. Product data for building control is supplied with every quote.
For buildings other than dwellings, Approved Document L Volume 2 sets limiting U-values of 2.2 W/m²K for rooflights and 3.0 W/m²K for roof ventilators, including smoke vents. Fragile-roof safety and access are planned before work starts.
Our planning guide covers each nation in more detail.
What do dome rooflights cost in St Austell?
Guide prices for dome rooflights in St Austell are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Dome and new insulated upstand | £955 – £1,675 | £795 – £1,395 |
| Hinged or vented dome Typical | £715 – £1,195 | £595 – £995 |
| Replacement fixed dome | £475 – £835 | £395 – £695 |
How the job runs
- Tell us what you have. Send the PL25 postcode, a rough size and a couple of photos.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
More we do in St Austell
Dome rooflights in St Austell: questions
Should I replace a dome or switch to glass?
A dome is cheaper and quick; glass gives a clear view and better performance. On a tight budget, or a commercial roof with many units, domes remain sensible.
Are domes safe to walk on?
No. Treat any rooflight as fragile unless it is specifically certified non-fragile, and never stand on it.
Can domes open?
Hinged and vented domes are available, manual or electric.
Do you fit dome rooflights in St Austell?
Yes. We survey and fit dome rooflights in St Austell and across Cornwall. Send your postcode and we will offer a survey date when we reply.
How do I book a survey in St Austell?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
