- Postcode district
- DT1
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 2–4 weeks from survey sign-off
- Guide price
- From £1,695 inc VAT
- Nearby
- Weymouth, Wareham, Bridport
- Building rules
- England
Is a uPVC sliding patio door a good fit for your home in Dorchester?
A few practical points decide whether uPVC sliding patio doors suit a particular room and opening:
For a rental or family home in Dorchester, frames that never need painting keep upkeep down to an occasional wipe, which is one reason uPVC sliding patio doors suit tighter budgets.
If the windows on your Dorchester home are white or woodgrain uPVC, uPVC sliding patio doors in a matching finish keep the rear of the house looking uniform.
- Multi-chambered uPVC profiles trap still air inside the frame, so the frame itself insulates well without needing a separate thermal break.
- uPVC frames never need painting or staining; an occasional wipe with warm soapy water keeps white or foiled finishes looking clean.
- Woodgrain and colour foils, including anthracite grey and black, let a uPVC door match existing windows instead of appearing as a white frame on a coloured elevation.
Light and sun in Dorchester
At the latitude of Dorchester, the midday sun climbs to about 63° in late June but only about 16° in late December, when daylight lasts around 7 h 57 min against 16 h 30 min in midsummer. A south-facing uPVC sliding patio door lets that low winter sun deep into the room; on a west or south elevation, solar-control glass keeps summer afternoons comfortable.
How much do uPVC sliding patio doors cost in Dorchester?
Use these guide prices to budget. They include VAT, fitting and taking away an old door of a similar size. Taller doors, triple glazing and dual colour add to the figure — the online tool shows how much.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.5 m | 2 panels | £1,695–£2,095 |
| 2.1 m | 2 panels | £1,995–£2,495 |
| 3.6 m | 3 panels | £2,895–£3,495 |
See every size on the uPVC sliding patio doors page or try the guide price tool.
What happens when you order uPVC sliding patio doors in Dorchester?
Once the opening is measured, nothing is ordered until you sign off the specification. Lead time is typically 2–4 weeks from 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 swap in an existing opening for a door like this.
Do you need approval in Dorchester?
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
- Trims and cills. A matching uPVC cill, add-on trims and internal finishing so the new door sits neatly against existing plaster and brick.
- Foiled colours. Anthracite grey, black, cream or woodgrain foils on one or both faces, for an extra charge.
- Glass. Toughened double glazing as standard, with laminated, obscure or solar-control units available.
Questions about uPVC sliding patio doors in Dorchester
Do you fit uPVC sliding patio doors in Dorchester?
Yes. We survey and fit uPVC sliding patio doors in Dorchester and across Dorset, including nearby Weymouth and Wareham. 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 uPVC sliding patio doors cost?
uPVC sliding patio doors start from a guide price of £1,695 for a 1.5 m two-panel door, fitted, inc VAT, at standard 2.1 m height. A 2.4 m door is a guide £2,195–£2,695, and a 3.6 m three-panel door is around £2,895. Coloured foils, glass upgrades and a low threshold move the figure up, and the final price is fixed in a written quote after survey.
Do I need permission to replace a patio door with a uPVC slider?
In England, replacing a patio door on a house is usually permitted development if the new door looks similar, though flats, listed buildings and Article 4 areas may need consent. The work must be done by a competent person scheme installer or notified to Building Control, and the glass must be safety glazing. Wales, Scotland and Northern Ireland have their own planning and building rules.
Are uPVC sliding doors secure?
uPVC sliding doors are secure when the sliding panel has multi-point locking, anti-lift protection and steel reinforcement in the frame. Systems are available tested to PAS 24, the UK enhanced security standard for doorsets. Laminated glass adds resistance to breaking through, and a key-locking handle stops the door being opened from inside if a pane is broken.