Towns we cover in Hertfordshire
Choose your town for local details. We list 17 towns in Hertfordshire; if yours is not shown, we still cover it — enter your postcode in the guide price tool.
Choose a door type for Hertfordshire
Prices are the same across Hertfordshire; choose a door type for sizes, options and local details.
Main towns in Hertfordshire
| Town | Postcode district | Nearest listed town | Daylight on 21 Dec |
|---|---|---|---|
| Hemel Hempstead | HP2 | Berkhamsted (8 km west) | 7 h 47 min |
| Stevenage | SG1 | Hitchin (8 km north-west) | 7 h 45 min |
| St Albans | AL1 | Radlett (7 km south) | 7 h 47 min |
| Welwyn Garden City | AL8 | Hatfield (4 km south) | 7 h 46 min |
| Cheshunt | EN8 | Enfield (6 km south-west) | 7 h 47 min |
| Hatfield | AL10 | Welwyn Garden City (4 km north) | 7 h 47 min |
| Bishop's Stortford | CM23 | Harlow (11 km south) | 7 h 46 min |
| Hitchin | SG5 | Letchworth Garden City (5 km north-east) | 7 h 45 min |
| Hoddesdon | EN11 | Ware (6 km north) | 7 h 47 min |
| Letchworth Garden City | SG6 | Hitchin (5 km south-west) | 7 h 45 min |
Postcode districts covered in Hertfordshire
Our town pages for Hertfordshire cover these postcode districts: AL1, AL5, AL8, AL10, CM23, EN8, EN11, HP2, HP4, HP23, SG1, SG5, SG6, SG8, SG12, SG14, WD7. Other postcodes in the area are covered too — enter yours in the guide price tool.
Daylight across Hertfordshire
In Hertfordshire the shortest day has roughly 7 h 46 min of daylight and the longest about 16 h 42 min. The noon sun sits near 15° above the horizon in winter and 62° in summer — so glass that faces south collects useful warmth from October to March, while a west-facing door may need solar control to stop it overheating in July.
Approvals in England
English Building Regulations treat a new or replacement external door in an existing home as a controlled fitting: it needs a U-value of 1.4 W/m²K or better (or Doorset Energy Rating band C) if more than 60% of it is glazed (Approved Document L), and safety glass in a critical location (Approved Document K). Compliance is arranged through a competent person scheme installer or a Building Control notification, so you get a certificate for your records.
A new or wider opening in England needs Building Control approval for the structural work as well as compliance for the door itself under Approved Documents L and K. Expect structural calculations, a steel beam and, where a party wall is involved, notices under the Party Wall etc. Act 1996.
Sliding doors in Hertfordshire: questions
Do you fit sliding doors across Hertfordshire?
Yes. We survey and fit sliding doors in Hemel Hempstead, Stevenage, St Albans, Welwyn Garden City and the rest of Hertfordshire. Start with a guide price online or call us to book a free survey for new or replacement doors.
Are prices higher in Hertfordshire?
No. Guide prices are the same across mainland Britain: a 2.4 m aluminium sliding door is a guide £4,295–£5,295, fitted, including VAT, and your exact price is fixed in a written quote after survey.
What approvals do sliding doors need in England?
In England a replacement door is a controlled fitting, so compliance is arranged through a competent person scheme installer or Building Control; new openings need a Building Regulations application. We confirm the right route for your property at survey.