Conservatory roof replacement cost UK 2026

Replacing a tired polycarbonate conservatory roof with a lightweight tiled "warm roof" costs £5,500–£10,000 for a typical 3 × 4 m conservatory in 2026. Result: a proper year-round room, less noise, better insulation and a 6–10 °C swing on temperatures.

How much does this cost in the UK in 2026?

The typical UK price range is £4,500–£14,000, with the average household paying around £7,500. Use the free calculator below to get a personalised estimate.

Free conservatory roof replacement cost uk 2026 calculator

What affects the cost?

• Conservatory size (m² roof area)
• Roof type — lightweight tiled, solid (warm) roof, polycarbonate-to-tiled conversion
• Existing frame strength — sometimes needs reinforcing for the heavier tiled roof
• Internal finish — plastered ceiling vs structural panels
• Velux windows for natural light (£800–£1,800 each)
• New guttering and flashing
• Building regulations approval if the conservatory becomes habitable

Cost breakdown

Cost by UK region

Regional pricing varies by up to 50 %, mostly driven by labour rates. These multipliers apply to the base UK cost:

Planning permission?

Permitted development for like-for-like; tiled conversions may need building regulations

How long does it take?

3–7 days typical, plus design and approvals time beforehand.

DIY vs Professional

Difficulty: Pro required. UK building regulations and Part P/Gas Safe rules mean most of this work must be done by registered professionals. Even where DIY is permitted, paying a pro is usually faster and more reliable.

How to save money

• Always specify a lightweight tiled system (e.g. Guardian Warm Roof) rather than a heavy concrete-tile retrofit
• Add 1–2 Velux windows to keep daylight levels
• Plaster the inside — it transforms the look and lets you use the room year-round
• Make sure the installer is part of a recognised scheme (LABSS, FENSA)
• Don't skip building control — the new roof changes structural and thermal performance

How to find a trusted tradesperson

Always get at least three written quotes. Use a vetted UK trade network for peace of mind:

• Checkatrade — vetted local trades with reviews
• MyBuilder — reviewed builders by job type
• Bark — get quotes from local pros

Or use the calculator above to get 3 free quotes direct to your inbox.

Frequently asked questions

Do I need planning permission for a solid conservatory roof?

Usually no — most replacements fall under permitted development. You will need building regulations approval because the new roof changes the structural loading and thermal performance.

Will a solid roof make my conservatory a habitable room?

It can — but only if you also upgrade the glazing/walls to meet building regs U-values, and the doors between the conservatory and house remain. Speak to building control early.

How much warmer will a tiled roof make my conservatory?

Typically 6–10 °C warmer in winter and 5–8 °C cooler in summer compared to polycarbonate. The room becomes usable year-round.

Get 3 free quotes

Use the calculator above to get an estimate, then submit your details to receive 3 free quotes from vetted local tradespeople. No signup, no spam.

Disclaimer: Prices are guide ranges based on 2026 UK market data. Get quotes from local tradespeople for accurate pricing.