Are sliding doors for extensions right for homes in Perth and Kinross?
Before you settle on a door type, it helps to know what sliding doors for extensions do well and what to check before you order.
Self-building in Perth and Kinross or elsewhere in Perth and Kinross? Ask for the sliding doors to be quoted as part of a wider glazing package so the frames, colours and glass match across the house.
When your Perth and Kinross extension is going through Building Control, keep the energy information for the doors to hand, as the inspector may ask for it.
- Slimline aluminium systems with interlocks typically around 20–25 mm maximise the glass in a new rear wall, keeping the view as open as possible.
- Telling the engineer the door type and span early lets them design the beam above it to limit deflection, protecting the smooth running of large sliding panels.
- Setting the finished floor level before the screed goes down allows a low threshold, typically 15–25 mm, or a flush one with a drainage channel outside.
Guide prices for sliding doors for extensions in Perth and Kinross
Guide prices are the same across Perth and Kinross. They cover the door supplied and fitted into a prepared opening, including VAT, with options itemised in your quote.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 3.0 m | 2 panels | £6,895–£8,395 |
| 3.6 m | 2 panels | £7,795–£9,495 |
| 4.8 m | 3 panels | £9,595–£11,695 |
| 6.0 m | 4 panels | £11,395–£13,895 |
Every size is on the sliding doors for extensions page.
Daylight and glass in Perth and Kinross
Daylight in Perth and Kinross runs from about 6 h 50 min in December to 17 h 44 min in June, with the noon sun at roughly 10° and 57° respectively. Use that to choose your glass: standard low-E double glazing for north and east elevations, and consider solar-control or triple glazing for sunny south and west walls.
Towns we cover in Perth and Kinross
We survey and fit sliding doors for extensions in 7 towns across Perth and Kinross, including the KY13, PH10, PH15, PH16, PH2, PH3 postcode districts.
Approvals in Scotland
In Scotland, an extension needs a building warrant before work starts, and the doors are covered by it; the design must meet the Scottish building standards for energy and safety glazing.
Questions about sliding doors for extensions in Perth and Kinross
Do you fit sliding doors for extensions in Perth and Kinross?
Yes. We survey and fit sliding doors for extensions in Perth and Kinross and across Perth and Kinross, including Perth and Aberfeldy. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
How much do sliding doors for an extension cost?
Slimline sliding doors for an extension have a guide price of £7,795–£9,495 for a 3.6 m opening and £9,595–£11,695 for a 4.8 m opening, fitted, inc VAT at standard 2.1 m height. Taller doors, extra panels, special glass and flush thresholds move the price. Your written quote after the check survey fixes it.
What structural opening size should my builder leave for sliding doors?
Your builder should leave the structural opening size we give in writing for your chosen door, which is the frame size plus a small fitting tolerance on each side and at the head. The exact figure depends on the system and the threshold detail. We confirm it from your drawings early, then check the built opening before the door is made.
Why does the steel beam matter for sliding doors?
The steel beam above an extension's sliding door matters because every beam bends a little under load, and a large sliding door needs a straight, level head to run freely. If the engineer knows a wide slider will sit under the beam, they can design for low deflection. Too much movement can make panels stiff or bind.