- Postcode district
- HP2
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 4–6 weeks for aluminium and 2–4 weeks for uPVC after survey sign-off
- Guide price
- From £3,295 inc VAT
- Nearby
- Berkhamsted, St Albans, Harpenden
- Building rules
- England
Are replacement sliding doors right for your Hemel Hempstead home?
Before you settle on a door type, it helps to know what replacement sliding doors do well and what to check before you order.
If your Hemel Hempstead home still has its original sliding patio door, look at the glass beads: if they are on the outside, a replacement will close off that weakness.
Considering a wider door for your Hemel Hempstead home while you are replacing it? Weigh up the extra cost of structural work against the gain in glass before deciding.
- Removal and disposal of your old patio door is included in our guide prices, so there is no separate skip or tip run to organise.
- Certification through a competent person scheme installer, or notification to Building Control, is arranged as part of the job and gives you a record for when you sell.
- Multipoint locks, anti-lift devices and internally beaded glass close the security gaps that older patio doors commonly have, such as panels that can be lifted out.
Light and sun in Hemel Hempstead
The midday sun over Hemel Hempstead ranges from about 15° at the winter solstice to about 62° at midsummer. Low-angle winter light reaches further into a room through a tall door, which is one reason taller panels are worth considering; on south or west walls, pair them with solar-control glass.
How much do replacement sliding doors cost in Hemel Hempstead?
The table shows guide prices for common sizes, supplied and fitted, including VAT. Your exact price is fixed in a written quote once the opening in your Hemel Hempstead home has been measured.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.8 m | 2 panels | £3,695–£4,495 |
| 3.6 m | 3 panels | £5,595–£6,895 |
| 6.0 m | 4 panels | £8,295–£10,095 |
See every size on the replacement sliding doors page or try the guide price tool.
How fitting works in Hemel Hempstead
Once the opening is measured, nothing is ordered until you sign off the specification. Lead time is typically 4–6 weeks for aluminium and 2–4 weeks for uPVC after survey sign-off. Our fitters protect floors, remove the old door, install and seal the new one and leave the area clean — usually 1 day for a straight two-panel swap; 1–2 days for larger doors for a door like this.
Do you need approval in Hemel Hempstead?
In England, a replacement sliding door is a controlled fitting under the Building Regulations. In an existing home, a door with more than 60% glazing must reach a U-value of 1.4 W/m²K or better (or a Doorset Energy Rating of band C) under Approved Document L, and glass in doors must be safety glazing under Approved Document K. We arrange compliance through a competent person scheme installer or by notifying Building Control, and you receive the certificate.
Choosing the specification
- uPVC replacement. A cost-conscious choice for a straightforward swap, available in white and foiled colours.
- New internal cill or board. A fresh window board or reveal lining to finish the inside neatly.
- Upgraded glass. Triple, laminated, solar-control or obscure glass to suit the elevation.
Questions about replacement sliding doors in Hemel Hempstead
Is the price different in Hemel Hempstead?
No. Guide prices for replacement sliding doors are the same across mainland Britain, including Hemel Hempstead. The fitted price depends on size, system, glass and finish, and any structural work, all fixed in your written quote after survey.
How long does it take to replace a sliding patio door?
Replacing a two-panel sliding patio door typically takes one day, from removing the old door to sealing and trimming the new one. Larger doors, three- or four-panel sets and doors needing extra making good typically take one to two days. Manufacture comes first, typically 4–6 weeks for aluminium or 2–4 weeks for uPVC after you sign off the surveyed specification.
Will the new door have a lower threshold?
A lower threshold may be possible on a replacement, depending on the floor level inside, the height of the patio or ground outside and how the opening was built. Low thresholds are typically 15–25 mm. A flush threshold needs a drainage channel outside so rain cannot run in. We check levels at survey and tell you what is realistic.
What happens to my old patio door?
We remove your old patio door and take it away for disposal as part of the job, and that is included in our guide prices, so there is nothing for you to arrange. If you would rather keep the old door, for example for a shed or greenhouse project, tell us before the fitting day and we will leave it safely on site.