New builds and self-builds · Hertfordshire
Triple glazing for new builds and self-builds in Harpenden
Homes in Harpenden can have new-build triple glazing supplied and fitted, with surveys arranged across Hertfordshire including AL5.
Window and door packages priced from drawings and fitted to your programme. Triple glazing is not required by Building Regulations for new homes, but it helps a new dwelling meet its overall energy target.
Winter light and glass choice in Harpenden
On the shortest day, Harpenden gets about 7 h 46 min of daylight and the midday sun reaches only about 15° above the horizon. Low winter sun means north-facing rooms here gain little solar heat, which is where triple glazing’s lower heat loss helps most.
Guide prices in Harpenden
| Guide | Supply and fit, zero-rated (new home) |
|---|---|
| uPVC package about 22 m2 of windows and doors | £11,195 – £13,895 |
| Aluminium package about 22 m2 of windows and doors | £18,895 – £23,595 |
| Alu-clad timber package about 22 m2 of windows and doors | £24,795 – £30,995 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for new builds and self-builds in England
For a new home in England, windows and doors are approved as part of the build’s own building control application, not as replacements: the limiting value is 1.6 W/m²K, with 1.2 used for the design reference. The house itself needs planning permission.
VAT: supply and fitting by a VAT-registered contractor in the construction of a new home is normally zero-rated, so new-build guide prices are shown without VAT; supply-only purchases carry 20% VAT, which self-builders can usually reclaim through HMRC’s DIY housebuilders scheme.
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.
- Free survey and a written quote fixed for the specification
- Glass build-up and whole-window U-value on every quote
- Written handover pack at the end of the job
- Guarantees on frames, units and fitting in writing
Questions from Harpenden
How much does a self-build window package cost?
For about 22 m² of windows and doors, our guide starts at £11,195 in uPVC and £18,895 in aluminium, fitted and zero-rated (new home).
Do you supply performance data for SAP?
Yes. Your energy assessor gets the U-values, g-values and frame data for the systems quoted.
Do you fit new-build triple glazing in Harpenden?
Yes. We arrange surveys and fitting in Harpenden and across Hertfordshire. 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 new-build triple glazing fitted in Harpenden?
After the survey, typical manufacture time is 6 to 12 weeks, and fitting is planned around your build programme.
Nearby
Nearby towns on our list include St Albans (8 km), Luton (8 km), Hemel Hempstead (10 km) and Welwyn Garden City (10 km).
Other products in Harpenden
- 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
- Sliding patio doors
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
New builds and self-builds in Harpenden: 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.