Fit-onlySupply & fitReplacementsTrade fitting
Fitting teams across England, Wales, Scotland & NI · Call 0800 088 6248
RooflightInstallers.co.uk
Northamptonshire · England

Sliding rooflight installation in Northamptonshire

No two sliding rooflights in Northamptonshire cost exactly the same to fit, and a guide price only gets you so far. What moves it: the size and weight of the unit, whether a new opening is needed, the roof covering, scaffold or lifting needs, and how much internal finishing you want. We quote sliding rooflight installation across Northamptonshire with each of those spelt out. Send photos for a first figure, or arrange a survey where the job calls for one.

Guide prices in Northamptonshire

Compact sliding

£7,795 – £10,795including VAT at 20%

Motorised sliding unit for a stair or hatch opening

Standard sliding

£10,795 – £15,595including VAT at 20%

Larger opening onto a roof terrace

Large sliding

£15,595 – £22,795including VAT at 20%

Big spans, lifting gear and longer installs

Guide ranges for supply & fit. Your price is fixed in a written quote after we have seen photos or surveyed. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.

Towns we list in Northamptonshire

Coverage in Northamptonshire works by postcode, not by distance from an office. Give us the full postcode and we will confirm whether it is standard cover, as it is for most of England, or one of the few remote and island areas handled by arrangement. Either way, you get a written quote before any work is booked, with travel included in the price.

What's included

  • Frame fixed and weathered with the membrane dressed up the kerb
  • Upstand checked for strength, square and level along its full length
  • Clear run confirmed for the glass to slide over when open
  • Power and safety stops — We confirm the power supply and the safety features before fitting day.
  • Guarding on the terrace — We look at how the roof terrace will be guarded before the rooflight is fitted.

Rules that apply in England

England's rules in short: permitted development usually covers a rooflight on a house roof provided it doesn't stick out more than 0.15 m or rise above the ridge, though a listed building always needs consent and some streets have Article 4 directions. Building regulations apply to new openings, and replacements go through building control; as we are not registered with a competent person scheme, we use a building notice and show the fee on the quote. The energy limit for rooflights in existing homes is 2.2 W/m²K, and the 2026 Approved Document L, in force from 24 March 2027, keeps that figure.

Common questions in Northamptonshire

Do you make good inside after fitting?

Yes, where the quote includes it. Internal finishing usually means lining the reveal with plasterboard, taping or skimming, and fitting trim where it meets the ceiling. Some people prefer their own plasterer or decorator to finish off, which is fine. The written quote spells out exactly where our work stops, so nobody is left guessing about who does what once the unit is in.

Can you replace an old dome without redoing the whole roof?

Usually, yes. If the existing kerb is sound, level and tall enough, a new unit can often sit on it with a fresh seal to the roof covering. If the kerb is rotten or too low, we rebuild it and patch the covering around it rather than stripping the whole roof. This is checked at the survey and included in the written quote, so you know the full scope first.

Do you cover Northamptonshire?

Yes. Fitters travel to addresses in Northamptonshire and the surrounding districts, including LE, MK, NN, OX and PE postcodes. We do not run an office there; the survey and the fitting happen at your property. A few island and remote postcodes are covered by arrangement; if yours is one, we confirm travel and dates before quoting.

Rear extension at dusk with lit rooflights and a roof lantern
Ready when you are

Fitting in Northamptonshire

Send photos and rough sizes, or ask for a survey visit for install work. You get one fixed written price before anything starts.

CallGet a quote