How we approach flat rooflights in Wigan
Flat rooflights in Wigan means fixed double or triple glazed rooflights for flat roofs and extensions. We cover the WN1 district and the rest of Greater Manchester, with a survey before any price is fixed.
The North West gets more rain than most of England, so upstand height, membrane detailing and rain sensors on opening units are not optional extras. Typical uses for flat rooflights include landings, bathrooms and rear extensions with flat roofs.
From Wigan to Hindley, Ashton-in-Makerfield and Westhoughton, the same survey-first process applies: measure, specify, fix the price, then fit.
Choices for your Wigan project
- Rain sensor if paired with an opening unit
- Solar-control or self-cleaning outer pane
- Insulated kerb or timber upstand built to suit
- Square, rectangular or long-format sizes
- Double or triple glazing
- Fixed units are simple, quiet and low-maintenance
- Slim sightlines from inside — mostly glass, little frame
What to check first
- New openings in an existing roof need a structural check on joists
- Rooflights count toward glazing in an extension, which matters for Building Regulations energy and overheating rules
Do you need permission in Wigan?
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line. 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.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
Read the planning permission guide before you commit to a design.
Flat rooflights prices in Wigan
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 |
What happens next
- Send the details. Postcode, rough size and a photo of the roof and room.
- 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.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Flat rooflights near Wigan
Related work in Wigan
Questions about flat rooflights in Wigan
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 a flat rooflight be walked on?
Not unless it is designed as a walk-on unit with structural laminated glass. A standard flat rooflight is for light only — if the roof is used as a terrace, choose a walk-on rooflight instead.
Do flat rooflights leak?
A well-fitted flat rooflight should not leak. Leaks almost always come from the upstand or membrane detailing, not the glass unit, which is why the upstand height and the way the roof covering is dressed up and under the frame matter more than the brand.
Do I need to be at home for the survey in Wigan?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Is the survey in Wigan free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
