What does skylight replacement in Northampton involve?
We handle skylight replacement across Northamptonshire, including Northampton. In short: replacing tired domes and failed glass with a modern rooflight. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Bungalows are common across parts of the Midlands, and sun tunnels or roof windows are a quick way to brighten internal hallways. Typical uses for skylight replacement include older extensions due a modern rooflight.
We cover all of Northampton and the NN1 district, and nearby Wellingborough and Towcester.
Options we can specify in Northampton
- Dome to flat glass upgrade
- Like-for-like size replacement
- Misted glass unit replacement only
- Fixed to electric opening
- Roof window replacement in pitched roofs
- Often reuses the existing opening
- Option to add opening and rain sensor
Things we check at survey
- Old glass and domes are disposed of responsibly
- Enlarging the opening changes the structure and may need approval
Do you need permission in Northampton?
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. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
What does skylight replacement cost in Northampton?
Guide prices for skylight replacement in Northampton 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 |
|---|---|---|
| Replacement with upstand rebuild and opening unit | £2,995 – £4,795 | £2,495 – £3,995 |
| Dome to flat glass upgrade Typical | £1,915 – £2,995 | £1,595 – £2,495 |
| Like-for-like glass rooflight | £1,555 – £2,155 | £1,295 – £1,795 |
From enquiry to finished job
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Northampton address.
- 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.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
Related work in Northampton
Common questions
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Do I need building regulations approval to replace a rooflight?
Replacements in existing homes generally need to meet current thermal standards and may need notification or approval. We advise on the route for your job.
Will it mess up my ceiling?
We protect the room and make good the reveal. Minor decoration may be needed afterwards.
Is the survey in Northampton free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do you offer skylight replacement in Northampton?
Yes. We carry out skylight replacement in Northampton and across Northamptonshire. Send your postcode and we will offer a survey date when we reply.
