Conservatory Roof Replacement Cost UK 2026: Full Price Breakdown

A conservatory roof replacement costs between £2,000 and £15,000 in 2026, depending on the roof type, conservatory size, and your location. Polycarbonate is the cheapest option from around £2,000, while a fully tiled solid roof on a large conservatory can reach £15,000 or more.

We’ve compared pricing from the four major UK conservatory roof systems – SupaLite, Guardian, Ultraframe, and WARMroof – alongside market rate data from installers to give you an accurate cost breakdown for every roof type and conservatory size. All prices are indicative market ranges and include both materials and installation.

How Much Does a Conservatory Roof Replacement Cost in 2026?

A conservatory roof replacement costs between £2,000 and £15,000 in 2026, and the average for a standard 3x3m to 4x4m conservatory is £4,000 to £8,000. Roof type is the biggest factor. Polycarbonate is cheapest at £2,000 to £6,500, glass costs £3,300 to £9,500, hybrid glass and solid roofs run £5,500 to £13,500, and a tiled solid roof costs £6,100 to £15,000. Most installations take two to five days.

Installers usually price by roof area. Polycarbonate costs about £200 to £350 per square metre installed and glass about £350 to £550. Larger conservatories cost more overall but less per square metre, and there is typically a minimum project cost of around £2,000 to £3,000. Quotes normally include materials, labour, scaffolding and waste removal, and prices run 10 to 20% higher in London and the South East than in the North of England or Wales.

For a price tailored to your exact dimensions and roof type, use our conservatory roof cost calculator, or compare the size-by-size ranges below. All figures are indicative ranges and include materials and installation.

These prices include materials, labour, scaffolding (if needed), and waste removal. VAT is typically included in residential quotes but always confirm this. Prices vary by region – expect to pay 10-20% more in London and the South East compared to the North of England or Wales.

How Much Does Each Conservatory Roof Type Cost?

Each roof type offers different benefits in terms of insulation, light, aesthetics, and cost. Polycarbonate is cheapest, glass costs more but lets in the most light, and a tiled solid roof costs the most but delivers the best insulation for year-round use. The right choice depends on how you use your conservatory and your budget.

Polycarbonate Roof Replacement

Polycarbonate is the cheapest conservatory roof option at £200-£350 per square metre installed, making it the go-to choice for like-for-like replacements on a budget. Modern multiwall polycarbonate panels are significantly better than the single-skin sheets used in the 1990s and 2000s.

The main drawback is insulation – even modern polycarbonate has a U-value of around 1.0-1.5 W/m2K. Your conservatory will still be too hot in summer and too cold in winter for year-round use. If year-round comfort is a priority, see our full conservatory pricing guide for options including complete rebuilds. Polycarbonate also discolours over time, typically lasting 10-15 years before it starts to look tired.

Choose polycarbonate if: you need a budget replacement under £5,000, you mainly use the conservatory in spring and autumn, or you plan to sell soon and want a fresh look without a major spend.

Glass Roof Replacement

Glass conservatory roofs cost £350-£550 per square metre installed and represent a significant upgrade over polycarbonate in both appearance and thermal performance. Self-cleaning, solar-control glass is now standard on most installations, reducing both maintenance and overheating.

Modern thermally efficient glass roofs achieve U-values of around 1.0-1.2 W/m2K – better than polycarbonate but well behind solid roofs. The main advantage is natural light. A glass roof floods the space with daylight, making it feel larger and more connected to the garden.

Choose glass if: you want maximum natural light, your conservatory faces north or east (less overheating risk), or aesthetics matter more than maximum insulation.

Tiled Solid Roof Replacement

A tiled solid roof conversion is the premium option at £650-£1,200 per square metre installed, but it transforms a conservatory into a genuine extension that you can use 365 days a year. All major systems (SupaLite, Guardian, Ultraframe Ultraroof, WARMroof) achieve U-values of 0.15 W/m2K or better – that’s six times more insulating than polycarbonate.

The installation replaces your existing roof structure with a lightweight aluminium or timber frame topped with tiles that match your main house roof. Most systems can be fitted in 2-5 days without removing the existing conservatory frame or base. The result looks like a natural extension rather than a bolted-on conservatory.

A tiled roof typically cuts heat loss compared with polycarbonate or older glass, and the conservatory becomes usable year-round, which estate agents tend to value as living space.

Choose a tiled roof if: you want year-round use, you’re tired of a conservatory that’s too hot in summer and too cold in winter, or you want to add genuine value to your property.

Hybrid Roof (Glass + Solid Panels)

Hybrid roofs combine solid insulated panels with glazed sections, typically costing £500-£900 per square metre installed. Systems like the Ultraframe Livinroof and Ultraframe Classic with glass panels let you position glazed areas where you want light while keeping solid panels where you need insulation.

This is the best compromise if you want better insulation than glass alone but don’t want to lose natural light entirely. A typical hybrid layout uses solid panels around the perimeter with a central glazed ridge or skylight panels.

Choose hybrid if: you want both light and insulation, you use the conservatory as a dining room or kitchen extension, or your conservatory faces south (solid panels reduce overheating while glass keeps it bright).

SupaLite vs Guardian vs Ultraframe: Which Roof System?

The UK conservatory roof replacement market is dominated by four major branded systems. Each is installed by a network of approved local installers, and the quality differences are smaller than the marketing suggests – all achieve similar insulation levels. The main differences are in warranty, design flexibility, and installer network quality.

*Guardian’s Trustpilot score reflects the manufacturer, not individual installers. Your experience will depend primarily on your local installer’s quality. **Ultraframe’s Trustpilot profile mixes installer and homeowner reviews, so its score does not measure the roof.

Our take: All four systems deliver similar thermal performance at similar price points. The differences that matter are: Ultraframe is the only one of the four that also makes glazed and hybrid roofs, and says Ultraroof spans up to 4 m over bi-fold doors without a tie bar. Guardian is the only system with VELUX roof window integration, which is valuable if you want sky views from a solid roof. Of the four, SupaLite is the only one that publishes pricing upfront.

Whichever system you choose, the installer matters more than the brand. Our guide to the best conservatory companies in the UK covers how to vet installers. Get at least 3 quotes, check individual reviews, and ask to see recent local projects.

What Affects Conservatory Roof Replacement Costs?

Seven factors determine your final price, with roof type and conservatory size the two biggest drivers. The rest comes from your specific property circumstances.

Conservatory Size

Larger conservatories cost more in absolute terms but less per square metre – a 25m2 conservatory doesn’t cost five times more than a 5m2 one. Most installers quote based on the total roof area, with a minimum project cost of around £2,000-£3,000 regardless of size.

Conservatory Style

Lean-to (single-pitch) conservatories are cheapest to re-roof because the structure is simple. Victorian and Edwardian styles with hipped roofs cost 10-20% more due to additional ridges, valleys, and tile cuts. P-shaped and L-shaped conservatories are the most complex and expensive.

Access and Scaffolding

If your conservatory is easily accessible from ground level, scaffolding may not be needed (saving £400-£800). Conservatories attached to upper floors, built on slopes, or with restricted access will need scaffolding, which adds to the cost.

Electrics and Lighting

Solid and hybrid roofs block natural light, so most homeowners add LED downlights (from £300-£600 for a standard installation). Some also add a roof lantern or skylight (£800-£2,000 depending on size). If you’re considering an orangery-style conversion, a lantern roof is the defining feature.

Building Regulations

Replacing a glazed or polycarbonate roof with a solid tiled roof requires Building Regulations approval in England, because the conservatory is no longer a substantially glazed structure and the heavier roof changes the loading on the frame and foundations. Branded installers (SupaLite, Guardian, Ultraframe, WARMroof) commonly handle the application as part of the job, but always confirm it is included in your quote. If it is not, budget for a separate application fee, which varies by local authority.

Waste Removal

Your old roof panels need disposing of. Most installers include removal in their quote, but check whether skip hire (£120-£300) is included or an extra charge.

Location

Labour rates vary significantly across the UK. London and the South East are typically 10-20% more expensive than the Midlands or North. Rural areas may attract additional travel charges from installers.

Is Replacing Your Conservatory Roof Worth It?

A solid conservatory roof replacement is one of the few home improvements that can pay for itself through energy savings and added property value, but only if your conservatory is currently unusable for large parts of the year.

Energy Savings

Replacing a polycarbonate or old glass roof with a solid tiled roof (U-value 0.15) dramatically reduces heat loss. The conservatory no longer drains heat from the adjoining rooms, so heating bills usually fall. The exact saving depends on your energy tariff and how much you currently heat the conservatory, so ask installers for a written estimate based on your own usage.

Property Value

A conservatory with a solid roof is valued as usable living space by estate agents, while one with a polycarbonate roof is often discounted. The uplift varies by area and buyer, so treat any figure quoted by an installer as a sales estimate rather than a guarantee.

vs Building a New Extension

A single-storey extension costs around £1,500-£3,000 per square metre – roughly 2-4 times more than a conservatory roof replacement. If you already have a conservatory with sound walls and foundations, replacing the roof is far cheaper than demolishing it and building from scratch. For those weighing up a complete new build, our uPVC conservatory costs guide covers full build pricing. SupaLite claims their system is “up to 60% cheaper” than a new extension – and on the numbers, that checks out.

The exception is if your existing conservatory frame is damaged, rotten, or poorly built. In that case, a roof replacement won’t solve the underlying structural issues, and a full rebuild or extension may be better value long-term.

Are There Grants for Conservatory Roof Replacement?

Government grants could partly fund a conservatory roof replacement if the new roof significantly improves your home’s insulation rating, but eligibility is not guaranteed. The Great British Insulation Scheme has closed (installations had to be completed by 31 March 2026), so ECO4 and England’s council-run Warm Homes: Local Grant are the routes left, both means-tested.

ECO4 Scheme: Available to homeowners on qualifying benefits or with low EPC ratings. The scheme funds insulation improvements, and a solid conservatory roof (U-value 0.15) may qualify as roof insulation. Funding is means-tested and depends on your energy supplier. See our full ECO4 guide for eligibility details.

Great British Insulation Scheme (GBIS): Closed to new applications in March 2026, so it can no longer fund conservatory roof work. In England, the council-run Warm Homes: Local Grant is now the route for insulation upgrades for eligible households (Scotland runs its own separate scheme). See our GBIS guide for background on the scheme.

Note: Grant eligibility for conservatory roof replacements specifically is not guaranteed – it depends on your assessor’s evaluation. But it’s worth checking before you commit to paying full price.

Do You Need Planning Permission to Replace a Conservatory Roof?

Replacing a conservatory roof generally does not need planning permission if the footprint, height and position stay the same. Building Regulations approval is a separate requirement, and in England it applies when you replace a glazed or polycarbonate roof with a solid tiled roof. Listed buildings and conservation areas are exceptions for planning.

Planning permission: Generally not required if you’re replacing a roof on an existing conservatory without changing its footprint, height, or position. Exceptions apply if your property is listed, in a conservation area, or if the new roof significantly changes the external appearance.

Building Regulations: Required in England when you replace a glazed or polycarbonate roof with a solid tiled roof. The Planning Portal says conservatories are normally exempt only while they stay separated from the house by external-quality walls, doors or windows, have independent heating, meet the glazing and electrical requirements, and are single storey and under 30 square metres. A solid roof puts different structural loads on the frame and foundations, and the room is no longer a substantially glazed conservatory. Branded systems (SupaLite, Guardian, Ultraframe, WARMroof) are designed to meet Building Regulations and installers commonly handle the approval, but confirm this in your quote. Scotland, Wales and Northern Ireland have separate systems.

What you need to do: Building Regulations approval is required whichever system you choose, so ask your installer who submits the application and whether the building control fee is in the quote. A branded installer will usually handle it; with a bespoke or non-branded installer you may need to arrange it yourself through your local authority or a registered approved inspector.

How to Choose the Right Conservatory Roof

The right roof depends on three factors: how you use the conservatory, your budget, and how much natural light you want to keep. Here’s a simple decision framework.

Our recommendation: If your budget allows it, a tiled or hybrid roof is almost always the better long-term investment. The energy savings, increased property value, and year-round usability justify the higher upfront cost compared to another polycarbonate roof that you’ll be replacing again in 10-15 years.

Get at least 3 quotes from different approved installers. Compare not just price but also warranty, building control inclusion, and whether lighting and plastering are included or extras.

Laura Bennet

Home Energy & Sustainability Editor

Laura leads coverage on home energy, heating, and sustainable living. With over 12 years in the UK energy sector, she writes about boilers, solar panels, insulation, and eco-friendly upgrades that reduce household costs.

Reviewed by

Tom Reynolds

Business Energy Specialist