Conservatory Roof Conversion: Glass vs Tiled 2026

Conservatory roof options compared

A conservatory roof conversion means replacing the existing roof — usually tired polycarbonate or single-glazed glass — with a warmer, better-performing one. The three mainstream choices are a solid tiled roof (warm, quiet, usable year-round), a modern glass roof (maximum light with self-cleaning, solar-control glazing), and upgraded polycarbonate (the cheapest refresh, but the weakest thermally).

What a roof conversion costs in 2026

As a rough guide for 2026, expect £4,000–£8,000 for a replacement glass roof, £6,000–£12,000 for a solid tiled roof with an insulated internal ceiling, and £2,500–£4,500 for a straight polycarbonate re-sheet. Size, existing frame condition and whether Building Control sign-off is needed all move the figure.

Glass vs tiled: which is right for you

Choose a tiled roof if the conservatory runs too hot in summer and too cold in winter and you want a true extra room. Choose glass if you value light and don't want to lose the airy feel — modern solar-control glass is a big step up on old glazing. Polycarbonate only really makes sense as a budget stop-gap.

How to choose and compare quotes

1. Decide your priority

Warmth and quiet point to tiled; light and openness point to glass. Fix this first — it drives everything else.

2. Check building regulations

Solid roofs add weight and change the thermal envelope, so they usually need Building Control approval and a structural check of the existing frames and base.

3. Match the roof to your frames

Confirm the existing walls and frames can carry a tiled roof, or budget for reinforcement. A good installer surveys this before quoting.

4. Get three like-for-like quotes

Compare on the same roof type, glazing or tile spec and internal finish so you judge quality, not just price.

FAQs

Related guides

• Tiled conservatory roofs explained
• Roof cleaning costs
• Comparison guides
• Is it worth it? Insights