How we approach flat rooflights in Kendal
Our flat rooflights service in Kendal covers fixed double or triple glazed rooflights for flat roofs and extensions. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
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. Flat rooflights suit kitchen extensions, side returns and flat-roofed back rooms.
From Kendal to Ulverston, Morecambe and Lancaster, the same survey-first process applies: measure, specify, fix the price, then fit.
What you can choose
- Double or triple glazing
- Rain sensor if paired with an opening unit
- Square, rectangular or long-format sizes
- Frame colours: anthracite, black, white or RAL
- Plastered or lined internal reveal
- Fixed units are simple, quiet and low-maintenance
- Inner pane laminated for safety overhead
Before you order: points to check
- 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
Planning and building rules for Kendal
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. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
Read the planning permission guide before you commit to a design.
Flat rooflights prices in Kendal
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 |
How the job runs
- Tell us what you have. Send the LA9 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Kendal, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Flat rooflights near Kendal
More we do in Kendal
Questions about flat rooflights in Kendal
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 fit into my existing flat roof?
Yes. We form a new opening, trim the joists, build and waterproof an upstand and make good the ceiling. A survey confirms the joist direction and roof build-up first.
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 you fit flat rooflights in Kendal?
Yes. We survey and fit flat rooflights in Kendal and across Cumbria. Send your postcode and we will offer a survey date when we reply.
Can you work alongside my builder in Kendal?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
