Security glazing · Hertfordshire
Laminated security triple glazing in Hemel Hempstead
From the first measure to the handover pack, we handle laminated security triple glazing for homes in Hemel Hempstead and the rest of Hertfordshire.
Glass that cracks but stays in place, on the windows that need it. Laminated security triple glazing uses a pane made of two sheets of glass bonded to a plastic interlayer, so it cracks but stays in place when hit.
Winter light and glass choice in Hemel Hempstead
By midsummer Hemel Hempstead has about 16 h 41 min of daylight, but in December only around 7 h 47 min, with the noon sun at about 15°. Triple glazing keeps more heat in during those long, dark months; big south and west windows may suit solar-control glass for summer.
Guide prices in Hemel Hempstead
| Guide | Supply and fit, inc VAT |
|---|---|
| Small window about 600 x 1000 mm (bathroom, landing) | £745 – £895 |
| Medium window about 1200 x 1200 mm (bedroom) | £995 – £1,295 |
| Large window about 1800 x 1200 mm (lounge) | £1,495 – £1,895 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for security glazing in England
The rules for replacement windows in England are set by Approved Document L (2021 edition, with 2023 amendments): 1.4 W/m²K, or a Window Energy Rating of band B or better. Replacement windows are a controlled fitting. A competent person scheme installer (such as FENSA or Certass) self-certifies the work and notifies the council within 30 days; otherwise a building control body approves it.
Planning: Replacing windows on a house is normally permitted development if the new ones look similar. New upper-floor windows in a side wall must be obscure glazed and fixed, or open only above 1.7 m. Flats and maisonettes have no householder permitted development rights, so a change that alters their appearance needs planning permission. An Article 4 direction in a conservation area 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 Hemel Hempstead
Is laminated glass the same as toughened?
No. Toughened glass shatters into small blunt pieces; laminated glass cracks but stays in one sheet. Both are safety glass; laminated is better for security.
Do I have to have security glass?
Not for replacements, but it is worth it on ground-floor and easy-access windows.
Do I need permission for laminated security triple glazing in Hemel Hempstead?
In England, like-for-like replacements on a house are normally permitted development; flats need permission if the change alters their appearance, Article 4 areas may need permission, and listed buildings need listed building consent. Check whether your street is in a conservation area or covered by an Article 4 direction before changing the style.
Do you fit laminated security triple glazing in Hemel Hempstead?
Yes. We arrange surveys and fitting in Hemel Hempstead and across Hertfordshire. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
Nearby towns on our list include Berkhamsted (8 km), St Albans (8 km), Harpenden (10 km) and Watford (12 km).
Other products in Hemel Hempstead
- 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
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Security glazing in Hemel Hempstead: 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.