5 Best Conservatory Installers in Cardiff for 2026
🏡 5 businesses·📍 Cardiff
✓ Reviewed regularly·✓ Updated 23 September 2026
Written by Mark Reid,
Trades Editor ·Verified 23 September 2026
Cardiff's housing stock throws up a fair few different challenges for conservatory installers. You've got the Victorian terraces of Cathays and Roath with their narrow gardens and tricky access, the 1930s semis in Whitchurch and Rhiwbina where there's usually more room to play with, and newer estates out towards Pontprennau and St Mellons where planning is often more straightforward. Coastal areas like Penarth and parts of Cardiff Bay bring their own considerations too, with exposure to wind and rain off the Bristol Channel meaning frame quality and drainage really matter. A good local installer will know which planning rules apply in your ward, whether you need building regs sign-off, and how to work around a small back garden without making a mess of your neighbours' fence line in the process.
The businesses featured here are pulled from public business listings and ranked by their review rating and review count, with a small lift given to those showing a working website and phone number. We read each installer's homepage to check that conservatory work is genuinely what they primarily do, which keeps roofers, general builders, and unrelated tradespeople off this page. Listings flagged as permanently closed are removed as a matter of course. Where you spot a Trust Verified badge, that business has gone through our fuller verification process, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information. Our How We Verify page sets out exactly what that involves. For any business without the badge, those checks haven't been done by us, so it's down to you to look into them before booking.
Before signing anything, ask to see evidence of FENSA or CERTASS registration if the work involves replacing windows or doors, and check whether the installer will handle the building regulations application or expects you to sort it. Get written confirmation of the guarantee on the frames, the roof system, and the workmanship separately, since these often come from different suppliers. It's worth asking how they'll manage the base and foundations too, particularly on clay soils common around parts of north Cardiff, which can shift more than the sandier ground nearer the coast. Getting two or three quotes is standard practice and gives you a proper sense of what's a fair price for your size and style of conservatory, rather than relying on one figure alone.
How We Select & Rate The Best Conservatory Installers in Cardiff
Businesses on this page are ranked using review rating and review count taken from public business listings, with a small lift for those showing a working website and phone number. We check each business's homepage to confirm conservatory installation is what they primarily offer, and listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have gone through our full verification process, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information; see our How We Verify page for the full list. Other businesses shown here haven't been independently verified by us, and their inclusion isn't an endorsement. Always carry out your own checks before hiring anyone.
Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
Quick Comparison: Conservatory Installers in Cardiff
Families across Cardiff looking to extend their living space without moving house make up much of the workload for Heath Windows & Doors. The firm designs and fits conservatories suited to Victorian terraces and newer builds alike, and has built up a rating of 4.9 from 353 reviews along the way.
Conservatory installation across Cardiff is the main focus for Capital Upvc Ltd, covering design through to fitting for uPVC structures. Feedback from 144 Google reviews, averaging 4.7, points to consistent workmanship on domestic projects. The firm operates from the CF24 area, serving households throughout the city.
Conservatory installation across Cardiff is handled by MEE Glazed Products Ltd, working with homeowners on glazed extensions and roofing conversions. The company has built up a record of 24 reviews averaging five stars, reflecting consistency in its fitting work. Enquiries can be made through the firm's website for those considering a new build or upgrade.
Conservatory installation and uPVC work in Cardiff, with Peter Fennell UPVC Specialist Limited focusing on double-glazed structures and associated window and door fitting. The company serves the CF42 area, offering a relatively focused scope compared with larger regional contractors. Enquiries and project details can be found via their website.
Families across Cardiff looking to extend their living space without moving house make up much of Leka Systems Ltd's client base. The firm designs and fits conservatories suited to period and modern properties alike, with a rating of 4.2 from 20 reviews reflecting steady local demand.
Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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How much does a conservatory installers cost in Cardiff?
A basic uPVC lean-to conservatory of around 3 by 3 metres typically starts from about £8,000 to £12,000, while a larger Victorian or Edwardian-style conservatory with a tiled roof can run to £20,000 or more once you factor in glazing upgrades and electrics. Solid roof conversions, which are popular for making the space usable all year round, add a fair bit more, often another £5,000 to £8,000 depending on size. Prices shift depending on groundwork, whether existing drainage or a stopcock needs moving, and how easy the site is to access. Getting two or three quotes from different installers is the best way to know if you're being quoted fairly.
Do I need planning permission for a conservatory in Cardiff?
Most conservatories fall under permitted development rights, so you won't need full planning permission provided the structure stays within certain size and height limits and doesn't sit forward of the main elevation facing a road. That said, if your property is in a conservation area, such as parts of Pontcanna or Roath, or if it's a listed building, the rules are tighter and you'll likely need consent from Cardiff Council. A decent installer will check this for you before work starts, but it's worth confirming directly with the council's planning department too, since it's your responsibility as the homeowner if something's built without the right approval.
Will I need building regulations approval?
Building regulations approval isn't usually required for a standard conservatory under 30 square metres that's separated from the house by external-quality doors and has its own independent heating controls. Once you start knocking through to create open-plan living space, adding a solid roof, or connecting it to the main heating system, building regs almost certainly apply. Ask your installer upfront whether they'll submit the application and arrange building control inspections, or whether that's left to you, and get it in writing so there's no confusion later.
How long does it take to build a conservatory?
Once the design is finalised and any planning or building regs matters are sorted, the actual build usually takes two to four weeks for a standard conservatory, weather permitting. Larger or more complex projects, particularly ones involving a solid roof or underfloor heating, can stretch to six weeks. Cardiff's wetter months, especially autumn and winter, can cause delays with groundwork and foundations, so if timing matters to you, ask your installer how they account for weather in their schedule.
What's the difference between a uPVC, aluminium, and timber conservatory frame?
uPVC is the most common choice around Cardiff, being low maintenance and generally the cheapest option, though it can look a bit boxy on period properties. Aluminium frames are slimmer and stronger, letting in more light, and they suit modern extensions or contemporary self-builds well, but they cost more. Timber frames, whether hardwood or engineered softwood, tend to suit Victorian and Edwardian terraces best for a more traditional look, though they need more upkeep over the years, including repainting or staining every few years. Ask your installer to show samples of each so you can see how the colour and finish will actually look against your brickwork.
How do I choose between conservatory installers in Cardiff?
Start by asking each installer for evidence of their qualifications, such as FENSA or CERTASS registration, and ask to see their public liability insurance certificate directly rather than taking it on trust. Look at how long they've been trading locally and ask for a couple of recent Cardiff addresses you could drive past to see finished work. Read through their customer reviews for mentions of how they handled problems, not just the initial sales pitch, since that tells you more about aftercare. Get at least two or three written quotes covering the same specification, so you're comparing like for like, and check what the guarantee actually covers before you sign anything.
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