Conservatory Refurbishment: What It Costs and What You Get
Real 2026 UK costs by scope, what’s included, refurbish vs replace, how long it takes, whether it fixes the heat problem, and what guarantees to expect – before you book anything.
Refurbishment cost depends entirely on scope – glass only, roof only, or a full refurbishment.
A glass upgrade alone is typically £2,000-£5,000. A roof-only replacement runs roughly £2,700-£16,000 depending on the roof type. A full conservatory refurbishment – roof, glazing, frames and finishes – commonly falls between £8,000 and £25,000, well below a £15,000-£40,000+ full replacement.
Not sure which scope you need? Start with a free conservatory health check – a specialist inspects the structure and tells you exactly what’s needed before you spend anything.
How much does conservatory refurbishment cost in 2026?
There is no single price for conservatory refurbishment because the word covers everything from a glass swap to a complete rebuild of the roof, frames and interior. The figures below are typical UK 2026 ranges for a standard-sized conservatory (roughly a 3-4m span); your exact number depends on size, access, roof type and current condition.
| Scope | Typical 2026 cost | What’s covered | What it won’t fix |
|---|---|---|---|
| Glass upgrade only | Roughly £2,000-£5,000 | Replacing existing roof and/or wall glass with modern high-performance sealed units, usually completed in 1-2 days | Tired frames, failed seals, blocked gutters or a poor internal finish |
| Roof only | Roughly £2,700-£16,000 | A like-for-like polycarbonate roof (£2,700-£4,000), a high-performance glass roof (£3,200-£4,800), or a solid tiled roof conversion (£12,000-£16,000) | Frame, hardware or drainage problems below the roofline |
| Full refurbishment | Roughly £8,000-£25,000 | Roof, glazing, frame and hardware repairs, insulation, electrics, plastering, decorating and a final valet | A failed base or major structural movement – that usually points to replacement instead |
Why quotes vary so much
A simple lean-to with good access is not the same job as a large Victorian conservatory with awkward roof facets, box gutters and rotten timber. Always ask for an itemised quote from your refurbishment specialist that separates survey findings, roof work, glazing, frame repair, finishes, compliance and VAT – and compare it against the scope-by-scope figures above. If a quote looks unusually cheap, it’s worth reading why that can cost more in the long run – see the hidden costs of cheap conservatories.
What does refurbishment include?
A refurbishment can be as light as a clean and service, or as comprehensive as a full rebuild of the roof, glazing and interior. Most projects sit somewhere in between, built around whatever is actually causing the leaks, draughts or discomfort.
Health check, clean and repairs
Valet clean, gutter and box gutter clearing, drainage checks, mechanism lubrication, seal and flashing inspection, and fixing hinges, handles or rotten sections. See cleaning and valet costs if this is all you need.
Baseline workGlass and roof upgrades
New high-performance glass or a roof conversion, often specified with New Generation Glass for solar control, better insulation and quieter rain.
Comfort driverInterior finishing
Insulation, ventilation improvements, electrics, plastering, lighting and decorating – the work that turns a tired add-on into a proper living space.
Lifestyle gainFor most homeowners, the goal isn’t to make the conservatory look brand new – it’s to make it usable again for breakfast, a desk, a playroom or evening sitting space, without the leaks, glare or cold spots that pushed it out of everyday use.
The glass and roof usually drive the biggest gains
New Generation Glass reflects up to 86% of solar heat, blocks 99% of UV rays and helps retain warmth in winter – developed by Room Outside specifically for the British climate. It’s the single upgrade most refurbishment clients notice first.
Refurbishment vs replacement: cost comparison
Refurbishment is the stronger financial case when the base, frames and layout are still sound – typically £8,000-£25,000 against £15,000-£40,000+ for a full replacement. Replacement earns its higher price when the structure itself is the problem, not just its finish.
Choose refurbishment if…
Consider replacement if…
The honest rule of thumb
Refurbish a good conservatory that has aged. Replace a poor conservatory that was never right. If you’re weighing this up in detail, our repair vs replacement guide breaks down the roof-specific decision, since the roof is usually where that decision gets made, or read the wider refurbish or replace overview if you’re still deciding on scope.
Can any conservatory be refurbished?
Refurbishment works on any make of conservatory – uPVC, aluminium or timber – regardless of who originally built it, provided the base and main frame are structurally sound. It’s the condition underneath, not the brand or age, that decides whether refurbishment is realistic.
Usually straightforward
Get a survey first
A sagging or visibly deflecting roof deserves particular caution – it’s often a structural signal rather than a cosmetic one. See structural solutions vs cosmetic fixes for a sagging roof before assuming a straightforward refurbishment will solve it. The same logic applies to orangeries and glass extensions, which follow the same refurbish-or-replace assessment as a conservatory.
If the property is listed, in a conservation area, or has restricted permitted development rights, confirm the planning route before changing the roofline or external appearance. Structural openings, solid roof conversions and electrical work can also trigger Building Regulations sign-off – your specialist should confirm this during the survey, not after work has started.
How long does refurbishment take?
Health check and valet clean
Usually completed in a single visit – inspection, cleaning, gutter clearing and mechanism servicing.
About 1 dayGlass upgrade only
Removing and refitting roof or wall glass panels is quick work once the units are manufactured and delivered.
1-2 days on siteRoof replacement or conversion
Longer for a solid tiled roof than a glass or polycarbonate swap, and weather-dependent throughout.
1-2 weeksFull refurbishment
Roof, glazing, frames, electrics and finishing together. Add extra lead time if Building Regulations sign-off is needed before work starts.
2-4 weeksThese are on-site working timelines – lead time for ordering glass or roof materials, and any planning or Building Control approval, typically adds several weeks before work even begins. Ask for this upfront in your quote so the whole project timeline is clear, not just the build phase.
Will refurbishment fix the temperature problem?
In most cases, yes. The roof and glass are the biggest single cause of a conservatory that’s unbearable in summer and freezing in winter, so upgrading them – particularly to a high-performance or New Generation Glass specification – typically delivers the biggest, most noticeable improvement in comfort.
Where refurbishment alone falls short is when the heat problem has more than one cause. Poor ventilation, south-facing orientation with no shading, an undersized structure for the room’s use, or missing insulation in the walls and base can all limit how much a roof or glass upgrade achieves on its own.
Get the specification right, not just one component
The fix that actually works is a specification built around your specific room – glass performance, roof build-up, ventilation and orientation together – rather than swapping one part in isolation. A survey should identify which of these factors apply to your conservatory before you commit to a scope.
What guarantees come with refurbishment?
Guarantee terms vary by installer and by the components fitted, so treat the points below as what to ask for rather than a fixed promise – then get the specifics confirmed in writing before you sign anything.
A vague guarantee is a warning sign
If a quote mentions a guarantee without stating its length, what it covers, or who honours it if the installer stops trading, ask for those details before booking. A specialist confident in their work will put it in writing without being pushed. If you’re comparing installers, our buyer’s framework for choosing a glass extension company covers the accreditations and guarantee questions worth asking before you commit.
The 2026 verdict
Conservatory refurbishment is worth pricing whenever the existing room has good bones. If the main problem is tired seals, a failing roof, dated glazing or a room that’s too hot or too cold to use, a scoped refurbishment – glass only, roof only, or full – can return it to everyday use for well under the cost of a rebuild.
If your conservatory has widespread structural issues, a poor base, rotten frames or a quote that’s climbing toward replacement cost, that’s the signal to compare against a new design instead. Either way, the right answer comes from a survey, not a guess. A well-specified roof upgrade also tends to pay back over time – Room Outside’s own roof guide notes a solid roof conversion can add roughly £20,000-£28,000 in property value alongside lower heating bills, on top of the day-to-day comfort gain.
Best next step
Book a free conservatory health check if you know the room has potential but need a clear scope and price. A specialist inspects the structure, separates quick repairs from real upgrades, and shows you exactly where your budget should go.
Explore Room Outside guides
Sources and further reading
Cost and refurbishment guidance is based on Room Outside’s conservatory refurbishment and glass upgrade service information, Room Outside’s 2026 conservatory roof repair/replacement guide, independent UK roof replacement cost guides, and Planning Portal conservatory Building Regulations guidance. See Room Outside conservatory refurbishment, Room Outside roof repair vs replacement, Checkatrade conservatory roof replacement cost guide and Planning Portal conservatory Building Regulations. Costs, planning rules and Building Regulations are applied project by project, so always confirm specifics with a site survey before work begins. Last updated 25 July 2026.
Frequently Asked Questions
Quick answers to the questions homeowners ask most before booking refurbishment work.
How much does conservatory refurbishment cost in 2026?
It depends on scope. A glass upgrade only typically runs about £2,000-£5,000. A roof-only replacement or conversion is roughly £2,700-£16,000 depending on whether you choose polycarbonate, high-performance glass or a solid tiled roof. A full refurbishment covering roof, glazing, frames and finishes commonly falls between £8,000 and £25,000. A site survey gives you an exact figure.
What does refurbishment include?
It can include a health check and valet clean, seal, gutter and flashing repairs, frame and hardware fixes, a glass or roof upgrade, insulation and ventilation improvements, electrics, plastering and decorating, finishing with a final clean.
Refurbishment vs replacement: which is cheaper?
Refurbishment is usually cheaper when the base and frames are sound, typically £8,000-£25,000 versus £15,000-£40,000+ for a full replacement. Replacement tends to work out better value when there is structural movement, rot or a layout that no longer suits the home.
Can any conservatory be refurbished?
Most conservatories can be refurbished regardless of make or frame material, provided the base and main frame are structurally sound. Refurbishment is not usually suitable where there is significant rot, movement, a failed base, or where a bespoke self-build has no standard replacement parts.
How long does refurbishment take?
A health check and valet is usually done in a day. A glass upgrade typically takes 1-2 days. A roof replacement or conversion generally takes 1-2 weeks. A full refurbishment covering roof, glass, frames and finishes usually takes 2-4 weeks, longer if Building Regulations sign-off is needed.
Will refurbishment fix the temperature problem?
Often yes, since the roof and glass are usually the main cause of overheating and heat loss. But refurbishment alone cannot fully fix poor ventilation, bad orientation or an undersized structure, so the specification needs to address those factors too for a full fix.
What guarantees come with refurbishment?
Expect a workmanship guarantee from the installer, a manufacturer warranty on any new glass units or roof system, and compliance certification for any work covered by Building Regulations. Always ask your specialist for the exact guarantee terms in writing before work starts.
Call us anytime – David, our digital assistant, will take a few details so the right specialist can follow up personally. 01243 538999
Book a Free Conservatory Health Check
Not sure whether you need a glass upgrade, a new roof, or a full refurbishment? A specialist will inspect the structure, tell you honestly what’s needed, and give you a clear scoped price – no obligation. Rated five stars on Google for the last two years, with over 1,000 conservatories, orangeries and glass extensions completed.
Call us anytime – David, our digital assistant, will take a few details.
01243 538999 |
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