Plymouth's Conservatory Roof Specialists
Conservatory Roof Replacement Cost (2026 Guide)
In 2026, replacing a conservatory roof with a solid insulated tiled roof costs from £6,000 fully fitted, with most projects in Plymouth, Devon and Cornwall landing between £6,800 and £15,000. The final figure depends on the shape and size of your conservatory, the tile finish you choose, and whether you add skylights. Scaffolding, the plastered ceiling, Building Regulations sign-off and a 10-year guarantee are included in every price we quote.
- 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
Price is the first question almost every homeowner asks us, and it's the hardest one to find an honest answer to online. Most guides quote a single vague figure, or a range so wide it's useless. This page sets out what we actually charge in 2026 across Plymouth, Devon and Cornwall — broken down by conservatory shape, by size, and by the extras people genuinely add. Every figure here matches our instant price estimator.
The short version: a fully fitted insulated tiled conservatory roof starts from £6,000. A typical 3m × 3m lean-to with a plastered ceiling lands at £6,800–£9,100. A large P-shape with skylights and premium tiles reaches around £15,000. Nearly everything else falls between the two.
Every price on this page is a fully fitted price. That means scaffolding, stripping and disposing of the old roof, the complete warm-roof system, tiles, lead flashing, new gutters, an internal plastered ceiling ready to decorate, Building Regulations sign-off and a 10-year insurance-backed guarantee. There is no separate labour charge, no VAT surprise, and no postcode surcharge.
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.
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 (included in every quote) |
| Upgrade to premium slate-profile tiles | £400 – £900 |
| External uPVC or composite cladding | £600 – £1,400 |
| 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 — uPVC or composite panels to the exposed elevations, adding £600–£1,400 depending on run length.
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
- Payback — comfort and energy savings typically pay back the investment within 3–5 years of use
- 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
- No maintenance budget — no roof cleaning, no sealed units to replace, no annual window cleaner charge for the roof
I got three quotes and ours wasn't the cheapest, but it was the only one that included the plastered ceiling and the Building Regs certificate in writing. No surprises at the end — we paid exactly what was quoted.
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
No hidden extras — the headline price is the price you pay.
Ways to Spread the Cost
- 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.
- Finance — interest-free and low-interest options through a regulated finance partner, with terms from 12 months up to 10 years.
- 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
Book a free home survey and you'll get a fixed written quote with every line itemised — no estimates that creep upwards once the scaffold is up. Surveys are usually available within 5 days across Plymouth, Devon and Cornwall, and there's 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.
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?+
Velux-style roof windows are £450 each fully fitted, flashed and plastered around inside. Two skylights in a 3.5m × 3.5m roof keeps the room bright while still cutting solar heat gain by around 90%.
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 — and interest-free or low-interest finance through a regulated finance partner, with terms from 12 months up to 10 years. We talk the options through at the survey with no pressure.
Will a new roof save me money on energy bills?+
Yes. A glass or polycarbonate roof has a U-value of roughly 1.0–2.0 W/m²K; an insulated tiled roof achieves 0.15–0.18 W/m²K, so heat escapes 5–10× more slowly. Most customers find a single radiator now heats the room, where previously it was unheatable in winter. Typical payback in comfort and energy savings is 3–5 years.
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.
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.
Got questions?
Straight answers to the things people ask us most.
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