- Postcode district
- SG1
- 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
- Hitchin, Letchworth Garden City, Welwyn Garden City
- Building rules
- England
What replacement sliding doors offer homes in Stevenage
A few practical points decide whether replacement sliding doors suit a particular room and opening:
Before booking a survey for a Stevenage flat, check your lease or title deeds and speak to the managing agent, factor or other owners, because doors in flats may need consent that houses do not.
Does the old door in your Stevenage kitchen whistle in the wind or leave puddles on the sill? Worn seals and failed drainage are common reasons to replace rather than repair.
- Slimmer modern frames often give a larger area of glass within the same opening, letting more daylight into the room than the old door did.
- New rollers and a precision track make a heavy door glide with a light push, where an old door may need both hands and a firm shove to open.
- Because the opening stays the same size, a straight replacement avoids structural work, steel beams and a Building Regulations structural application.
Daylight in Stevenage and what it means for your glass
At the latitude of Stevenage, the midday sun climbs to about 62° in late June but only about 15° in late December, when daylight lasts around 7 h 45 min against 16 h 43 min in midsummer. A south-facing replacement sliding door lets that low winter sun deep into the room; on a west or south elevation, solar-control glass keeps summer afternoons comfortable.
Sliding door replacement prices in Stevenage
Pricing is transparent and does not change because you are in Stevenage. The ranges below cover a standard-height door, fitted, with VAT; options are itemised in your quote.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.5 m | 2 panels | £3,295–£4,095 |
| 2.4 m | 2 panels | £4,295–£5,295 |
| 6.0 m | 4 panels | £8,295–£10,095 |
See every size on the replacement sliding doors page or try the guide price tool.
What happens when you order replacement sliding doors in Stevenage?
Here is the usual sequence in Stevenage: guide price, free survey, written quote, then manufacture (typically 4–6 weeks for aluminium and 2–4 weeks for uPVC after survey sign-off). Fitting typically takes 1 day for a straight two-panel swap; 1–2 days for larger doors. Nearby, we also survey in Hitchin, Letchworth Garden City and Welwyn Garden City.
Do you need approval in Stevenage?
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.
Finishes and extras for replacement sliding doors
- uPVC replacement. A cost-conscious choice for a straightforward swap, available in white and foiled colours.
- Upgraded glass. Triple, laminated, solar-control or obscure glass to suit the elevation.
- Slimline upgrade. Narrow interlocks for the maximum glass area the existing opening allows.
Questions about replacement sliding doors in Stevenage
Do you fit replacement sliding doors in Stevenage?
Yes. We survey and fit replacement sliding doors in Stevenage and across Hertfordshire, including nearby Hitchin and Letchworth Garden City. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
What if there is no proper lintel above my old door?
Occasionally an old door frame turns out to be carrying some load because the support above the opening is inadequate or missing. We check the head of the opening at survey and again when the old frame comes out. If extra support is needed, we explain why, what it involves and what it costs before any further work goes ahead.
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.
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.