Sliding patio doors · Northamptonshire
Triple glazed sliding patio doors in Daventry
If you live in Daventry (NN11) and want triple glazed sliding patio doors, start with a free survey: every opening measured, then a written quote that fixes the price.
uPVC and aluminium sliders with low-threshold options. A sliding patio door has large glazed panels that slide past each other on a track, so it opens without swinging into the room.
Winter light and glass choice in Daventry
In Daventry, midday sun in late December sits around 14° high, with roughly 7 h 41 min of daylight. For windows facing north or shaded by neighbours, cutting heat loss matters more than solar gain; on open south-facing glass, ask about a higher solar-gain unit.
Guide prices in Daventry
| Guide | Supply and fit, inc VAT |
|---|---|
| uPVC 2-pane slider about 1.8 m wide | £1,895 – £2,295 |
| uPVC 2-pane slider, wide about 2.4 m wide | £2,295 – £2,895 |
| Aluminium slider about 3 m wide | £3,295 – £4,195 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for sliding patio doors in England
England sets replacement door limits through Approved Document L (2021 edition, with 2023 amendments): 1.4 W/m²K, or a door set energy rating of band C (more than 60% glazed) or band B (other doors). Replacement external doors fall under the same energy rules: a competent person scheme installer (such as FENSA or Certass) self-certifies the work and notifies the council, or a building control body approves it.
Planning: Replacing doors on a house is normally permitted development if the new ones look similar. Flats need planning permission for a change that alters their appearance, an Article 4 direction may mean permission is needed, and listed buildings need listed building consent.
How it works
After the free survey you get a written quote naming the frame system, the glass build-up and the whole-window U-value for every item. Windows are made to order, then fitted, sealed and made good, one opening at a time.
- Every opening measured, including escape and vent needs
- Frames rated for the weight of triple glass
- Old windows removed and taken away
- Each opening closed up the same day
Questions from Daventry
Are triple glazed sliding doors hard to open?
Not with correctly rated rollers. Lift-and-slide gear makes even very large panels easy to move.
How much does a triple glazed sliding door cost?
Our guide starts at £1,895 fitted for a 1.8 m uPVC slider and £3,295 for a 3 m aluminium slider, inc VAT. UK quotes for triple uPVC sliders run from about £1,600 to £2,600.
Do you fit triple glazed sliding patio doors in Daventry?
Yes. We arrange surveys and fitting in Daventry and across Northamptonshire. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
How long does it take to get triple glazed sliding patio doors fitted in Daventry?
After the survey, typical manufacture time is 5 to 8 weeks, and a door is usually fitted in a day.
Nearby
Also near Daventry: Rugby (14 km), Northampton (19 km), Royal Leamington Spa (25 km) and Banbury (25 km).
Other products in Daventry
- uPVC windows
- Aluminium windows
- Timber windows
- Alu-clad timber windows
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Bay and bow windows
- Fixed and picture windows
- Composite front doors
- French doors
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Sliding patio doors in Daventry: book your free survey
Written quote fixed for the specification, after a free survey. Building Regulations sign-off by a competent person scheme installer or building control, as the law requires in England.