Plymouth's Conservatory Roof Specialists
Conservatory Roof Replacement Cost: 2026 Price Guide
A SupaLite™ insulated tiled conservatory roof starts from £6,000 fully fitted in 2026. Typical projects cost £6,800–£15,000 across Plymouth, Devon and Cornwall. Your price includes scaffolding, old-roof removal, a plastered ceiling and Building Regulations sign-off, with a 10-year insurance-backed guarantee and 40-year tile manufacturer guarantee. A free home survey confirms a fixed written quote for your roof.
- Warm in winter, cool in summer
- No more leaks or condensation
- Fully insulated tiled roof systems
No pushy sales · Same-day reply · 10-year insurance-backed guarantee
A simple, considered approach.
What a Conservatory Roof Replacement Costs in 2026
Budget from £6,000 fully fitted for a SupaLite™ insulated tiled roof replacement. Most projects fall between £6,800 and £15,000; the shape, size, tile finish and optional skylights determine where yours sits. These are 2026 guide prices for Plymouth, Devon and Cornwall, not a fixed quote for an unmeasured roof.
- 3m × 3m lean-to: £6,800–£9,100 fully fitted, including a plastered ceiling.
- 3.5m × 3.5m Edwardian or three-facet Victorian: £8,500–£11,100 fully fitted.
- Large P-shape or L-shape: £11,800–£15,000; check the optional extras table when choosing finishes or skylights.
Included work covers scaffolding, removal and disposal of the old roof, the SupaLite™ roof system and tiles, lead flashing, new gutters, a plastered ceiling and Building Regulations sign-off. The guarantees are 10-year insurance-backed and 40-year tile manufacturer. Optional upgrades are listed separately below so you can compare the full specification, not just the headline price.
For a guide based on your measurements, use our conservatory roof cost calculator. For an exact price, request a free home survey and fixed written quote: we measure your roof, assess the existing frame and base, and confirm your chosen finish before quoting. There is no obligation to proceed.
These prices are for the same job whichever name you know it by: a warm, insulated conservatory roof, or replacing a glass or polycarbonate roof with a solid one. You can see finished examples in our project gallery, and local pricing detail on our Plymouth page.
Why most older conservatory roofs stop working.
Almost every project we visit starts with the same set of complaints.
Too hot in summer
Glass and polycarbonate roofs trap solar heat and make the room unusable.
Too cold in winter
Poor insulation lets warmth escape and pushes up your heating bills.
Leaks & condensation
Aging seals and single-skin roofs let damp in and cause recurring leaks.
Loud during rain
Thin roof materials amplify noise so the room never feels settled.
Why Quotes Vary So Much Between Companies
If you've gathered three quotes and they're thousands apart, it's rarely because one company is greedy and another is generous. It's almost always because they're quoting for different work. These are the items that most often explain a suspiciously low price:
- Scaffolding excluded — added later as a "site cost", typically £600–£1,200
- No plastered ceiling — you're left with bare insulated board and a separate plasterer's bill of £800–£1,500
- Building Regulations not included — the application, inspections and certificate can add £400–£700, and without the certificate the work can hold up a house sale
- Insulated boards instead of an engineered warm roof — cheaper, thinner, and nowhere near the same U-value or lifespan
- Old guttering reused — often already brittle, and a common source of leaks a year later
- Flashing sealed rather than chased — mastic instead of code-4 lead dressed into the brickwork; it looks fine on handover day and fails within a few winters
- Waste removal excluded — a skip and disposal charge appearing on the final invoice
Ask every company for an itemised quote and check each of those seven lines. When you compare like for like, the spread between reputable installers usually narrows to a few hundred pounds.
A complete insulated warm-roof system.
Engineered to building-reg standards and finished beautifully inside and out.
2026 Prices by Conservatory Shape and Size
Shape matters more than floor area. A faceted Victorian roof has far more cutting, hip detailing and ridge work than a lean-to covering the same square metres, so it takes longer and costs more. These are realistic fully fitted guide prices for 2026:
| Conservatory shape | Typical size | 2026 fitted price | Notes |
|---|---|---|---|
| Lean-to | up to 3m × 3m | £6,800 – £9,100 | Simplest shape, fastest install — 2 days |
| Lean-to (medium) | ~3.5m × 3.5m | £7,900 – £10,400 | Extra span may need an additional ridge beam |
| Lean-to (large) | 4m+ / family-sized | £9,200 – £12,000 | Longer rafters and a heavier ridge beam |
| Edwardian / square | ~3.5m × 3.5m | £8,500 – £11,100 | Four hips meeting a central point |
| Victorian (3-facet) | ~3.5m × 3.5m | £8,500 – £11,100 | Faceted front adds cutting and detailing time |
| Victorian (5-facet) | 4m+ / family-sized | £10,000 – £12,800 | More facets, more hip detailing |
| Gable-end | ~3.5m × 3.5m | £9,300 – £12,100 | Vertical gable feature, popular with vaulted ceilings |
| P-shape / L-shape | 4m+ combined | £11,800 – £15,000 | Two roof forms joined — the most complex build |
These are guide prices, not quotes. The only way to get an exact figure is a free home survey, where we measure the roof, check the frame and base can carry the new load, and confirm the tile finish you want.
Pricing a 5m × 3m roof or an insulation upgrade
A 5m × 3m footprint alone is not enough to give a fixed price: pitch, shape, spans, access, existing frames and roof windows matter too. Use the large size in the calculator below for a starting estimate, then send your measurements and photos with your survey enquiry. The table above is a roof price guide; the calculator is a separate indicative model, not a record of completed-job prices.
Compare like-for-like scope when pricing insulation. Our service is a complete SupaLite replacement, not a panel-only lining kit. Read the conservatory roof insulation options before comparing kit prices with fitted roof quotes. We retain a separate SupaLite cost explainer for system-specific questions.
Optional Extras and What They Add
| Item | 2026 cost |
|---|---|
| Velux-style roof window (each, fitted) | £450 |
| Recessed LED downlights (per light) | £60 – £90 |
| Internal plastered ceiling | £850 calculator allowance; included in the fitted guide ranges |
| Upgrade to premium slate-profile tiles | £400 – £900 |
| External uPVC or composite cladding | Separate survey and written quote |
| New guttering and downpipes | Included as standard |
| Building Regulations application & sign-off | Included as standard |
| Scaffolding for the full project | Included as standard |
How Materials Change the Price
The structure underneath is the same on every job — an engineered SupaLite™ frame with high-performance PIR insulation, achieving U-values of 0.15–0.18 W/m²K. What varies is the external finish, and that's where a few hundred pounds either way is decided.
- Lightweight composite slate — the most popular choice in Devon and Cornwall; sits well against render, stone and painted brick. Standard specification on most quotes.
- Pantile profile — a deeper, more traditional roll; suits older properties and matches many existing house roofs. Usually within £200–£400 of slate.
- Plain tile profile — flat, uniform and understated; a good match for modern estates. Similar price to slate.
- Premium slate finishes — heavier grain and colour variation for a closer match to natural slate; adds £400–£900 across a typical roof.
- External cladding — a separate survey and written quote establishes the material, area, preparation and finishing work.
All tile options carry a 40-year manufacturer guarantee and weigh 30–35 kg/m², which is roughly the same as or less than the glass roof and aluminium frame being removed. That's why existing bases and frames almost never need strengthening — and why there's rarely a structural cost on top.
Cost per Square Metre
Working it back, a conservatory roof replacement in 2026 typically works out at £600–£1,000 per square metre of roof area, fully fitted. Larger, simpler shapes sit at the lower end; small or heavily faceted roofs at the upper end. For comparison, a single-storey extension in Devon starts around £2,000–£2,500 per square metre — before you've furnished or decorated it.
A real Plymouth project — old roof off, insulated tiled roof on.
Drag the slider to see the finish included in every price on this page: composite tiles outside, a flat plastered ceiling inside.
Plymouth — polycarbonate roof replaced with a lightweight insulated tiled roof, plastered ceiling included.
Drag the slider to compare
Four clear steps from first visit to finished room.
Survey
We visit, measure and discuss exactly how you want to use the room.
Specify
A clear written quote — materials, finish and timeline up front.
Install
Old roof off, fully insulated warm-roof system on, by our own crew.
Finish
Plastered ceiling, full clean-down and walk-through with you.
A conservatory you actually want to spend time in.
Cool in summer
No more trapped heat — the room stays comfortable on the hottest days.
Warm in winter
Insulated to modern building-reg standards so you keep the heat in.
10 year guarantee
Insurance-backed guarantee, plus a 40-year guarantee on the tiles.
Fast install
Most projects are completed in just 2–4 days by our own crew.
Is It Worth the Money?
A conservatory roof replacement is one of the few home improvements where the return is immediate and measurable — you get a room back that you were previously writing off for half the year.
- Usable months — most customers go from using the room 4–5 months a year to using it all twelve
- Heating cost — a single radiator typically heats the room once the roof is insulated, where previously it was unheatable in winter
- Running costs — insulation reduces heat transfer through the roof; savings depend on the complete room and its use, with no promised payback period
- Versus an extension — a comparable year-round room for roughly a quarter to a third of extension cost, with no groundworks and no planning application
- Resale — the room is listed as a year-round reception rather than a conservatory, and the Building Regs certificate satisfies buyers' solicitors
- Lifespan — 40+ years on the tiles versus 10–15 on a typical glass or polycarbonate roof, so it's a once-and-done cost
- Ongoing care — follow the roof and roof-window care instructions and keep drainage clear; a replacement is not maintenance-free
What does it cost?
Honest, typical price ranges so you can plan with confidence — every quote is bespoke after a free home survey.
What's Included in Every Price
- Free home survey, measurements and structural assessment
- Full scaffolding for the duration of the project
- Removal and disposal of your existing roof
- The complete SupaLite™ engineered warm-roof system with PIR insulation
- Lightweight composite tiles with a 40-year guarantee
- Code-4 lead flashing chased into the brickwork at the wall junction
- New gutters and downpipes
- Internal plasterboard and skim ceiling, ready to decorate
- Building Regulations application, inspection and certificate
- Full clean-down and a 10-year insurance-backed guarantee
Your survey confirms the complete specification and fixed written price; the starting price is not a quote for every roof.
Ways to Pay
- Stage payments — a small deposit secures your install date, with the balance split between start of work and completion. You never pay for work that hasn't been done.
- Card or bank transfer — all major payment methods accepted, with full receipts.
- No pressure — we go through the numbers at the survey and leave you to decide in your own time.
How to Get an Exact Price
Request a free home survey for a fixed written quote with every line itemised. We measure your roof, check the existing frame and base, and confirm the tile finish and any optional extras. Your quote sets out the included work before you decide, with no obligation to proceed.
Plymouth, Devon & Cornwall.
A locally based crew covering the South West — most projects are within 30 minutes of our Barbican workshop.
Pricing Across Plymouth, Devon & Cornwall
Our prices are the same wherever you are in our coverage area — travel is included in every quote and there are no postcode surcharges. We regularly work across:
- Plymouth — Plymstock, Plympton, Mannamead, Mutley, Peverell, Crownhill, Eggbuckland, Hartley
- South Hams — Ivybridge, Wembury, Yealmpton, Modbury, Kingsbridge
- South-East Cornwall — Saltash, Torpoint, Callington
- West Devon — Tavistock, Yelverton
The person who quotes your job is the same person who oversees the install, so the figure you're given at the survey is the figure that stands.
Instant Price Estimator
Get Your Conservatory Roof Price in 30 Seconds
Pick your shape, size and finish — see an instant ballpark price. No email needed, no pushy sales.
Step 1 — Conservatory Shape
Step 2 — Size
Skylights
Internal Finish · £850 allowance
Pick a shape and size above to see your instant price.
Estimates are a guide, not a fixed quotation. A free survey confirms specification, access and frame condition.
Why our warm roof outperforms a traditional conservatory.
Frequently asked questions.
How much does a conservatory roof replacement cost in 2026?+
A fully fitted insulated tiled conservatory roof starts from £6,000 and typically lands between £6,800 and £15,000 depending on size, shape, tile finish and skylights. A standard 3m × 3m lean-to sits at the lower end; a large P-shape or Victorian roof with skylights sits towards the top. Every quote is fixed after a free home survey.
What does the price actually include?+
Free home survey and structural assessment, scaffolding, removal and disposal of the old roof, the complete SupaLite™ insulated roof system, lightweight composite tiles, new gutters and downpipes, code-4 lead flashing, an internal plastered ceiling ready to decorate, Building Regulations application and sign-off, and a 10-year insurance-backed guarantee. There are no hidden extras.
Is a tiled conservatory roof cheaper than a new extension?+
Substantially. A single-storey extension in Devon typically starts around £2,000–£2,500 per m², so a 12m² extension is £24,000+. Replacing the roof on an existing conservatory of the same size gives you a comparable year-round room for a fraction of that, because the base, frame, windows and doors are all retained.
How much does a lean-to conservatory roof replacement cost?+
Lean-to roofs are the simplest shape and the most affordable to replace. A 3m × 3m lean-to is typically £6,800–£9,100 fully fitted, including the plastered ceiling and Building Regs sign-off. Larger lean-tos of 4m and above usually fall in the £9,200–£12,000 range.
How much does a Victorian conservatory roof replacement cost?+
Victorian roofs have three or five facets and a more complex ridge and hip arrangement, so they take longer to build and cost more than a lean-to of the same floor area. Expect around £8,500–£11,100 for a three-facet Victorian at 3.5m × 3.5m, rising to £10,000–£12,800 for a large five-facet roof with skylights.
How much do skylights add to the cost?+
The calculator uses £450 per fitted roof window. Number, size, position and flashing are confirmed in the written quote; roof windows can retain overhead daylight in an insulated roof.
Are conservatory roof replacements cheaper in winter?+
Prices don't change seasonally, but lead times do. Spring and early summer are our busiest months, so booking a survey in autumn or winter often means a faster install date. The work itself is unaffected by weather — the conservatory stays watertight throughout, even overnight.
Can I spread the cost of a conservatory roof?+
Yes. We offer stage payments — a small deposit secures your date, with the balance split between start of work and completion, with nothing more to pay until the work is done. We talk the plan through at the survey with no pressure.
Will a new roof save me money on energy bills?+
Insulation reduces heat transfer through the roof, but whole-home bills depend on the windows, frames, heating, ventilation and how you use the room. Our published SupaLite roof specifications give U-values of 0.15–0.18 W/m²K. We do not promise a measured saving or payback period; your survey confirms the proposed roof specification.
Why do some companies quote much less?+
Very low quotes usually exclude something: scaffolding, the plastered ceiling, Building Regulations sign-off, new guttering, or proper code-4 lead flashing. Some use insulated panel boards rather than a fully engineered warm-roof system. Always ask for an itemised quote and check the Building Regs certificate is included — without it, the work can cause problems at sale time.
What is the cheapest way to replace a conservatory roof?+
The advertised £6,000 starting price is for the simplest specification, not every roof. Selecting standard tiles and fewer roof windows can reduce cost; retaining sound existing frames and the base also avoids unnecessary replacement work. Compare the complete fitted scope and approval requirements, not a panel-kit price against a full replacement. A free survey confirms suitability and your fixed price.
Does a new conservatory roof add value to my home?+
It changes how the room is described. Estate agents commonly list glass conservatories as unusable in summer and winter, which puts buyers off. A tiled-roof conservatory is listed as a year-round room or third reception, which improves appeal and surveyed value. The Building Regs certificate also reassures buyers' solicitors.
Do I need planning permission, and does that cost extra?+
Planning permission is almost never required — replacing a roof on the same footprint normally falls under permitted development. Building Regulations sign-off is required because the thermal envelope changes, and both the application and the inspector's visit are included in our quoted price at no extra charge.
Get your free quote
Tell us a little about your conservatory and we'll come back to you within 48 hours. No pushy sales, no obligation.
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