Conservatory Roof Replacement Cost

How Much to Replace a Conservatory Roof?

In 2026, the average conservatory roof replacement costs between £3,200 and £6,000.

This is considerably cheaper than an entire conservatory extension, which typically costs around £15,000 in the UK.

Prices will mainly depend on the size of your conservatory and the material you want to use on your new conservatory roof.

Let's start by narrowing replacement conservatory roof costs down based on the size of your conservatory:

From this point, the main factor that impacts costs is the roof material.

Here's what you can expect new conservatory roof costs per square metre to be in 2026:

• Solid Conservatory Roof — Between £300 and £600 per m².
• Glass Conservatory Roof — Between £200 and £400 per m².
• Polycarbonate Conservatory Roof — Between £175 and £350 per m².

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Conservatory Roof Replacement Prices

As we've seen, polycarbonate is usually the cheapest conservatory roof material initially, but each material comes with pros and cons that can impact its long-term value overall.

Let's take a further look at some replacement conservatory roof cost examples below, and discover which one might best suit your home and your budget.

Choosing a conservatory roof material requires striking a balance between price, appearance, and performance. There are clear benefits to upgrading your conservatory roof, from boosting energy-efficiency and lowering heating bills, to improving the look of an outdated design and getting rid of time-consuming maintenance.

With that in mind, let's take a closer look at the different types of conservatory roof materials to help you find the best solution for your budget:

Polycarbonate Conservatory Roof Replacement Cost

How Much? Between £2,700 and £4,000 for a medium-sized roof.

Best For? Homeowners on a budget, who use their conservatory as an occasional space.

Pros

• ✔ Lightweight and easy to install
• ✔ Affordable, good for those on a budget

Cons

• ✖ Less visual appeal than other conservatory roof materials
• ✖ Poor insulation (very hot in the summer, very cold in the winter)

Glass Conservatory Roof Replacement Cost

How Much? Between £3,200 and £4,800 for average-sized conservatories.

Best For? Maximising natural light in your conservatory.

Pros

• ✔ Modern aesthetic with lots of natural light
• ✔ Better insulated than polycarbonate

Cons

• ✖ Higher price point
• ✖ Requires regular cleaning

Solid Conservatory Roof Replacement Cost

How Much? Between £5,000 and £6,800 for an average-sized tiled conservatory roof.

Best For? People who want to turn their conservatory into a functional year-round room.

Pros

• ✔ Best for all-year use with excellent insulation
• ✔ Feels most like a "real" room

Cons

• ✖ Most expensive roof material
• ✖ Can reduce the amount of natural light in the conservatory

Labour Costs for Replacing a Conservatory Roof

When you're getting quotes from tradespeople, they'll typically bundle labour and materials together into a single set price.

Let's break down how much of the total cost is labour:

• Labour costs account for 30% to 40% of your total project cost.
• The day rate for a 2-person team is between £300 and £500. Expect rates towards the higher end of this range in London, the South East, and major cities.
• Most installers work as a team of 2 for jobs like this, as it allows them to complete the job safely and efficiently.

For example: replacing a 3m x 3m (9m²) glass conservatory roof costs between £2,200 and £3,400. Labour would account for £660 to £1,360 of this total.

Do I Need a New Conservatory Roof?

Even with regular maintenance, no conservatory roof lasts forever.

Glass and polycarbonate conservatory roofs typically start showing problems after 10 to 20 years. Solid roofs tend to last longer, but you'll likely start to spot issues after around 25 years.

Whether you need to repair your conservatory roof depends on if you're seeing the following common signs:

• Leaking — If you find water or damp patches inside the conservatory and previous roof leak repair attempts haven't been successful, it's likely that a replacement is needed.
• Damp — Damp patches, mould, or a 'musty' smell inside a conservatory indicate there's poor ventilation or moisture is somehow getting in.
• Discoloured, Misted, or Cloudy Panels — These are signs of UV exposure damage, moisture trapped in the panel, or materials approaching the end of their lifespan.
• Cracks — If there's any visible damage to the surface of a conservatory roof, it may start to let water slowly seep in.
• Slipped Panels — This is a more serious issue that's harder to repair. It usually suggests that there's a problem in the roof's structural frame.

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What Impacts Conservatory Roof Costs?

As we've already covered, the size of the conservatory and the roof material are the two main factors that drive replacement conservatory roof costs - but these aren't the only factors that can push your quote higher or lower.

Type of Conservatory

The shape and style of your conservatory roof will impact what you should expect to pay for a conservatory roof replacement.

Material costs won't vary much between roof types (assuming they're the same size). However, roofs with more complex shapes and styles will take longer to replace, which increases labour costs.

Here's how quotes vary for a medium-sized conservatory that's 4m x 4m (16m²) with different roof styles:

Conservatory Roof Conversion Cost

Changing from polycarbonate or glass to a solid roof will cost more than a like-for-like replacement.

Here's why:

• Extra structural work — Might be required if the existing frame isn't strong enough to hold the extra weight of a solid roof.
• Insulation and plastering — Required to finish the inside of a solid roof conversion (making it feel more like an extension).
• Building control — Required when converting to a solid conservatory roof.

For an average 4m x 4m (16m²) sized space, conservatory roof conversion costs would be £1,500 to £3,000 higher than a like-for-like replacement.

This means the total cost will be roughly 30% to 40% higher.

Adding Conservatory Roof Insulation

If you're replacing your conservatory roof, you may also decide to add or upgrade the insulation at the same time.

This will increase the upfront cost, but it can improve temperature control and make the space more comfortable to use all year round.

Waste Removal

Conservatory roof replacements and conversions generate a lot of waste.

Removing the old conservatory roof and disposing of any waste is typically handled by installers and included in quotes. However, this is important to confirm before hiring anyone for this job.

If you're handling this yourself, you'll have to budget between £120 and £300 for the cost of hiring a skip. Most homeowners won't need more than a single 4 to 6-yard skip, but you'll want to confirm this ahead of time with the installer.

Ease of Access & Scaffolding Hire

In most cases, scaffolding isn't required when installing a new conservatory roof. Installers will usually replace the roof using ladders or an access tower they own (at no extra cost).

However, you should confirm this ahead of time when getting quotes. If they assess that scaffolding is required for access, they'll either bundle it into the total price you're quoted or ask you to arrange it separately.

If you're paying for it yourself, the cost of hiring scaffolding for a conservatory roof replacement will typically be between £400 and £800.

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What's Included (and Not Included) in the Cost of Conservatory Roof Replacements?

The cost of replacing a polycarbonate roof is between £2,700 to £4,000 - but what's included in that price?

Here's what's commonly included in your quote when replacing a conservatory roof:

• Removal of the existing conservatory roof panels
• Supply of the new conservatory roof materials (e.g., polycarbonate, glass, solid system)
• Standard labour to fit the new roof, including fixing, trims, and seals
• Making good and basic finishing around the edge of the roof
• Waste removal (optional, best to clarify)

There are, however, some additional costs when replacing your conservatory roof that may impact the overall price. Here we review some of the things that are not included in a standard conservatory roof replacement:

• Extra structural work – Repairs to the existing framework or other structural work may require a builder or even a structural engineer to oversee the work, should extensive repairs be required (costing approximately £450 per day).
• Roof leak repairs – Although replacing a conservatory roof may resolve some issues, the actual leak could be coming from elsewhere. Repairs typically cost around £375, depending on the extent of the work needed.
• Conservatory Windows – If your conservatory also needs window work, replacing just the glass usually costs £55–£145 per unit, while a full uPVC frame replacement conservatory windows cost around £200 to £550 per unit.
• Electrical Work – After the new roof is fitted, a qualified electrician may need to install lights or other fittings, typically costing £30 to £50 per hour.
• Waste Removal – While most installers include this, if not, skip hire can be arranged separately, averaging around £220 for a small skip.

How Long Does Conservatory Roof Replacement Take?

In typical cases, UK homeowners should expect a conservatory roof replacement to be completed within 2 days. How long it takes will mainly depend on the size of your conservatory, but the material you want to use also has an effect.

The table below shows what to expect for different-sized conservatories (assuming a 2-person team).

Polycarbonate roofs are easier to install, so the installers will finish slightly earlier. On the other hand, solid roofs tend to take a bit longer to finish. This is especially the case if you're converting from a polycarbonate or glass roof, as additional structural work may be required.

Building Regulations for Replacement Conservatory Roofs

Do you need Building Regulations approval to change the roof on your conservatory?

The short answer: If you're replacing your conservatory roof with a like-for-like translucent material - polycarbonate or glass - you typically won't need Building Regulations approval - providing you still meet the exemption criteria:

• The conservatory is separated from the house with external quality doors
• The total conservatory space doesn't exceed 30m²

However, if you're swapping an old polycarbonate or glass roof with a solid or tiled conservatory roof, you will need Building Regulations approval.

This is because this type of change may change the classification of the room from a conservatory to a home extension, and will have additional requirements for insulation and ventilation.

Planning Permission for Replacement Conservatory Roofs

Most conservatory roof replacements won't need planning permission if you adhere to the following:

• The total footprint of the conservatory isn't being altered or enlarged
• The height and structure are broadly the same as before

If you're planning on significantly changing the appearance of the roof in height or pitch, or changing the overall structure of the conservatory, you may need to apply for planning permission before starting work.

Checklist: Hiring a Roofer to Replace Your Conservatory Roof

Consider these key points before hiring a tradesperson to install a new conservatory roof:

• Do they specialise in conservatory roofs? You're ideally looking to hire someone who has 2+ years of experience installing glass, polycarbonate, and/or solid conservatory roofs.
• Do they handle building control approval? You'll usually need Building Regulations sign-off when installing a solid conservatory roof, but not for polycarbonate or glass roofs. If needed, make sure that you're clear whether your builder will manage this for you.
• Is waste removal included? Most people will handle this on behalf of the homeowner. However, you should confirm that the removal of the existing roof and all waste disposal is included in the total cost quoted.
• Are they insured? It's not a legal requirement, but you'll want to ensure that they have public liability insurance. This covers you in case something goes wrong during the job.
• Do they have positive reviews? Check their MyJobQuote profile to find all the feedback they've received from other homeowners.
• Do they have examples of similar work? Take a look at the photos they've uploaded to their MyJobQuote profile. This will give you an idea of what they're capable of.
• Do they offer any guarantee? Good installers won't have any issue standing behind their work and providing some type of warranty (independently or via a scheme).

Ensure that you don't go with the first quote you've given.

Aim to get at least 3 quotes from conservatory roof installers near you. This'll give you a clearer picture of the going rate and help you find someone who's a good fit for the job.

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