Flat rooflights in Deeside: what is involved?
For Deeside homes and buildings we offer flat rooflights: fixed double or triple glazed rooflights for flat roofs and extensions. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Many Welsh homes have older single-storey rear extensions where a glass rooflight brightens a dark kitchen. In Deeside, as anywhere, flat rooflights are the usual choice for kitchen extensions, side returns and flat-roofed back rooms.
From Deeside to Hawarden, Buckley and Flint, the same survey-first process applies: measure, specify, fix the price, then fit.
Specification options
- Plastered or lined internal reveal
- Double or triple glazing
- Rain sensor if paired with an opening unit
- Frame colours: anthracite, black, white or RAL
- Square, rectangular or long-format sizes
- Fixed units are simple, quiet and low-maintenance
- Pairs with an opening unit where you also need ventilation
What to check first
- The roof membrane must be dressed up the upstand before the unit goes on
- New openings in an existing roof need a structural check on joists
Planning and building rules for Deeside
In Wales a rooflight on a house is usually permitted development if it stands no more than 15 cm proud of the roof, except on protected land such as conservation areas and National Parks, where permission is needed. A side-facing rooflight within 10.5 m of the boundary must be obscure-glazed, and non-opening unless the opening part is more than 1.7 m above the floor.
In Wales the limiting values are 2.2 W/m²K for a rooflight and 1.4 W/m²K (or WER Band B) for a roof window in an existing house. A revised Welsh Approved Document L takes effect on 4 March 2027; rooflights in new dwellings stay at 2.2 W/m²K.
Read the planning permission guide before you commit to a design.
What do flat rooflights cost in Deeside?
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or triple glazed (1500 × 2500 mm and up) | £2,395 – £4,195 | £1,995 – £3,495 |
| Mid-size double glazed (1000 × 2000 mm) Typical | £1,675 – £2,395 | £1,395 – £1,995 |
| Small double glazed (up to 1000 × 1000 mm) | £1,195 – £1,795 | £995 – £1,495 |
From enquiry to finished job
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Deeside address.
- Measure and check. A surveyor visits Deeside, measures and checks structure and access.
- 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.
Nearby towns
More we do in Deeside
Flat rooflights in Deeside: questions
Will it make the room too hot?
A big unglazed-to-sky area can add solar gain in summer. Solar-control glass, a blind, or pairing a fixed unit with an opening one keeps it comfortable.
Double or triple glazing?
Double glazing suits most domestic jobs. Triple glazing improves thermal performance and cuts noise from rain, which is worth it over bedrooms or where the energy calculation is tight.
How long does it take?
Fitting into a prepared upstand usually takes a day. Forming a new opening in an existing roof, including making good inside, is often two to three days.
Can you work alongside my builder in Deeside?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do you fit flat rooflights in Deeside?
Yes. We survey and fit flat rooflights in Deeside and across Clwyd. Send your postcode and we will offer a survey date when we reply.
