Conservatory Roof Replacement in Bathgate

Warm in winter, cool in summer — a real tiled roof for your conservatory, fitted by qualified roofers in Bathgate.

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Guide price: conservatory roof replacement from around £5,000  ·  Free, no-obligation survey and a clear fixed price

Conservatory roof replacement Bathgate — guide prices by roof type

Indicative 2025/26 ranges for Bathgate, Blackburn, Armadale and Whitburn, based on published UK cost guides alongside our own starting point of roughly £5,000 for the smallest warm tiled roof.

Roof type and conservatory size Guide price Notes for an exposed plot
Like-for-like polycarbonate, 25–35 mm multiwall £2,000 – £5,000 Quieter than 16 mm; the heat loss is unchanged
Replacement glass roof, solar-control units £3,500 – £7,000 No warrant needed; frames checked for the weight
Warm tiled roof, lean-to up to about 9 m² £5,000 – £7,500 Extra fixings specified on high, open ground
Warm tiled roof, 10–14 m² lean-to or Edwardian £7,000 – £10,500 The commonest size on Bathgate estates
Warm tiled roof, Victorian or gable-fronted 15–20 m² £9,500 – £14,000 Facets bring hips, cutting and leadwork
Warm tiled roof, P-shaped or over 20 m² £12,000 – £18,000+ Two roofs meeting; more lead and more days
West Lothian Council building warrant fee £250 – £550 Set nationally by the value of the work

These are guide figures rather than a quotation, and pitch, wall construction, access and tile choice all move them. We survey free of charge with nothing owed either way, then put a single fixed price in writing before any work is booked.

Show my Bathgate guide price

Pick the job and the guide range from the table above appears straight away. Leave your details and we’ll ring to book the free survey, then you get a fixed written quote — the guide range is a starting point, not the final price.

What our customers say

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Maxine Baker profile picture
Maxine Baker
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Great price, did a amazing job polite and nice family company definitely recommend
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Fiona Robertson profile picture
Fiona Robertson
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We are very happy with our new conservatory roof. Frank and his two sons were very professional and helpful during the whole process. We would definitely use them again and highly recommend their work.
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Ewan Fraser profile picture
Ewan Fraser
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Really happy with our new conservatory roof. Frank and his two sons were friendly, professional and trustworthy throughout. They did a great job and left everything tidy. Would definitely recommend them.
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Elaine Hope profile picture
Elaine Hope
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Frank and his sons, Frank and James did a good job for me and left everything clean and tidy. I appreciate that I was kept informed and found them all very pleasant and polite.
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Barbara Sutherland profile picture
Barbara Sutherland
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Great service , product and process knowledge . Very efficient and reliable . Highly recommend.
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Martyn Swannell
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10/10 for Frank and the lads. From a quick hello to getting a quote through the door was so quick. Work was completed within 3 days and the lads were super friendly and really tidy! We are really happy with the results and would highly recommend these guys for any roofing/ guttering work etc.
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Tc home improvements
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Excellent job …new roofline and verge fitted arrived on time and the team were happy to offer advice during the work as to make a better finish Very satisfied
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Nancy Todd profile picture
Nancy Todd
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Excellent work carried out by Frank, James and the team once again. I called them for roofline and fascias, and they did exactly what was needed, effectively and efficiently, leaving everything clean and tidy as they left. Highly recommend tradesmen. Thanks again guys.
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LP
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Excellent job. Thank you
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Brian Wilson profile picture
Brian Wilson
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A brilliant service, from initial contact through to the job being done. Care and attention to detail provided along with a friendly and professional manner in repairing our roof tiles.

Recent F J Allan jobs across Falkirk and Central Scotland

Real jobs by our own team. Ask to see more from your area when we survey.

F J Allan & Sons recent roofing work in central Scotland
F J Allan & Sons recent roofing work in central Scotland
F J Allan & Sons recent roofing work in central Scotland

Conservatory Roof Replacement in Bathgate

Bathgate and the surrounding West Lothian towns have a huge number of homes with conservatories that are no longer fit to use year-round. F J Allan & Sons replace tired glass and polycarbonate conservatory roofs in Bathgate with a warm, lightweight tiled roof conversion — turning a room you avoid into a comfortable, energy-efficient part of your home you can use all year round.

Replace your old roof with our tiled system and you get:

  • Total Temperature Control — comfortable in July, cosy in January.
  • Reduced Energy Bills — superior insulation that keeps heat where it belongs.
  • Acoustic Comfort — no more shouting over rain on a plastic roof.
  • Seamless Design — a wide range of tile styles to match your home.

Signs your conservatory roof needs replacing

If any of these sound familiar, a tiled roof conversion will fix them for good.

Too hot in summer, freezing in winter

Glass and polycarbonate offer almost no insulation, so the room is unusable at the extremes.

Rain is deafening

A plastic roof turns a light shower into a racket you can’t talk or watch TV over.

Leaks, stains or green algae

Old seals fail and polycarbonate discolours — a sign the roof is past its life.

Fading furniture and glare

Uncontrolled sun bleaches carpets and furniture and makes screens unreadable.

You’ve stopped using the room

The clearest sign of all — a tiled roof makes it a space you actually live in.

Why choose a roofer, not a window company?

Most conservatory roofs are fitted by window and conservatory companies. F J Allan & Sons are qualified roofers. Every conversion includes proper leadwork and a fully weathertight seal where the new roof meets your house — exactly the joint that leaks first when the work is done by a non-roofer. All our conversions meet Building Regulations, for complete peace of mind on structural safety and thermal efficiency.

What you get

Lightweight Structural Frames

Advanced lightweight timber or aluminium systems that replace old glass or polycarbonate without stressing your original window frames.

High-Performance Insulation

A multi-layered thermal barrier that traps heat in winter and reflects summer sun — slashing your energy bills.

Premium Tile Finishes

Slate-effect or traditional shingle finishes, colour-matched to your existing roof for a seamless, high-value look.

A Real Room Finish

Inside, a fully vaulted, plastered ceiling ready for paint — turning a cold garden room into a true extension of your home.

Tiled vs glass vs polycarbonate

Weighing up your conservatory roof options? Here’s how they compare.

Polycarbonate

Cheapest and most common — but thin, noisy in rain, poor insulation and prone to discolouring. The roof most people end up replacing.

Glass

Better looking and quieter than poly, but still a big heat-loss / solar-gain problem — hot in summer, cold in winter, priciest to run.

Tiled (what we fit)

A warm, solid, insulated roof that stays comfortable all year, cuts noise and bills, and gives you a real plastered ceiling inside. The long-term winner.

The process

Step 1: The Expert Survey

One of our team visits your home in Bathgate to check the structure of your conservatory, take exact measurements and talk through tile choices and internal lighting.

Step 2: Safe Removal & Recycling

We carefully strip out the old, inefficient polycarbonate or glass roof, handle all the heavy lifting and dispose of the old materials responsibly.

Step 3: Weathertight in a Day

We fit the new lightweight frame and high-grade insulation, aiming to make the structure watertight on the very first day to protect your home.

Step 4: Tiling & Professional Leadwork

This is where our roofing heritage shows. We lay your chosen tiles and carry out precision leadwork so the seal between your house and the new roof is 100% leak-proof.

Step 5: Internal Finish & Handover

We plasterboard and skim the new vaulted ceiling, fit optional LED spotlights, then leave the room clean and ready for you to move back in.

What affects the cost of a conservatory roof in Bathgate?

There is no one-size price for a conservatory roof in Bathgate — the honest answer is that it depends. What changes the cost is:

  • The size and shape of your conservatory (lean-to, Victorian, Edwardian, P-shaped).
  • Tile choice and finish — lightweight slate-effect vs traditional shingle.
  • Insulation specification and whether you want the full plastered ceiling and spotlights inside.
  • Any structural work the survey flags on the existing frame or base.

That’s why we give a free, no-obligation survey and a clear fixed price — no pressure and no vague “from” figures that change later.

Areas we cover

Based in the Bathgate area, we also cover Falkirk, Grangemouth, Larbert, Stirling, Cumbernauld, Airdrie and the wider Forth Valley and North Lanarkshire. Nearby: Armadale · Blackburn · Whitburn · Linlithgow. You can also see our main conservatory roofing service or our Falkirk hub page. Not sure if we reach your street? Give us a call — chances are we do.

More about a conservatory roof in Bathgate

Open any heading for the detail: what we do here, local roof types, prices, how to check a roofer, and storm claims.

Conservatory roof replacement in Bathgate: the polycarbonate generation is up

Bathgate put up conservatories faster than almost anywhere else we cover. From the mid-1990s to the early 2010s a glazed extension off the back was the standard upgrade on every estate in the town, and the great majority were finished in multiwall polycarbonate because it was cheap and it went on quickly. Those sheets had a design life, and it has run out. Most people asking us about conservatory roof replacement in Bathgate are looking at plastic gone milky, gaskets that have crept out of their bars, and a room the family quietly stopped using two winters ago.

Where the town sits makes it worse. Bathgate stands high on the shoulder of the hills with very little to slow the weather coming in from the west. Wind-driven rain works into the joint between sheet and glazing bar, hail crazes the surface, and a large plastic panel that flexes all winter eventually loosens its own fixings. A warm tiled roof takes the whole problem away: a rigid insulated structure, a real ceiling beneath it, and a covering that behaves like the roof over the rest of your house. Our comparison of warm tiled, glass and polycarbonate roofs puts the three options side by side.

Boghall, Wester Inch and the Armadale road: what we find on each

The housing splits neatly by decade and each group brings its own job. The 1960s to 1980s council-built streets around Boghall and out towards Whitburn and Armadale have roughcast or dry-dashed walls and shallow back gardens, and the conservatories fixed to them in the nineties are mostly modest lean-tos with low eaves. Height at the wall is the constraint there, and we measure it before anyone starts talking about tiles.

The 2000s developments at Wester Inch are brick and block with taller ceilings, and their conservatories were often part of the original purchase or added within a year or two. Those frames are generally in better order, but the box gutters against the house are frequently undersized, and we meet more failed sealed units than failed plastic. Older stone properties nearer the centre and along the shale-oil terraces are a smaller share of the work, and there the detail that needs care is the fixing and flashing into rubble stonework rather than the roof itself.

An exposed site changes how the roof is built, not whether you can have one

On the higher, opener plots we increase the number of fixings into the eaves beam and the house wall, screw the ridge down rather than bed it, clip every verge, and mechanically fix each tile instead of relying on the course above to hold it. The insulation is taped and sealed at the perimeter so wind cannot drive through the joints, and the flashing into the wall is properly chased, dressed and pointed rather than run in mastic and hoped for.

Drainage is the other half of the answer. Tiles clear a downpour far faster than a plastic sheet, so a gutter and downpipe that just about coped before will overflow on the first heavy day. We size the rainwater goods for the new roof, and where the existing rhones are past helping we renew them through our guttering service in Bathgate while the access is already up, which is cheaper than coming back for them later.

The survey, and the answer nobody wants to hear

We will not price a solid roof from a photograph. Before a figure goes on paper we check the concrete base and dwarf wall for settlement, test the frames and corner posts for splits and dropped joints, look hard at the eaves beam that will carry the new rafters, and open up the junction with the house wall to see what the original installer really did there.

Most conservatories here pass. Where one does not, there are three honest outcomes and we tell you which applies. The eaves beam may simply need reinforcing, quoted as its own line. A corner post or a length of dwarf wall may need rebuilding before anything heavier goes on top. Or, on a small number of the earliest and thinnest frames, the structure has had its day and the money is better spent on a new conservatory than on a good roof over a poor base. Walking away from that job suits both of us better than fitting a roof that moves.

The West Lothian Council building warrant, in plain terms

Scotland does this differently from England. The moment the roof is no longer mostly translucent, building standards stop calling the room a conservatory and start calling it an extension, and an extension needs a building warrant granted by West Lothian Council before work starts. There is a general exemption for conservatories and single-storey extensions of eight square metres or less, but that is porch-sized; a three-by-three lean-to already exceeds it, so nearly every job in the town needs the warrant.

That is our work, not yours. Drawings, structural calculations, the application to building standards, whatever queries come back, and the completion certificate at the end, which is the paper a buyer’s solicitor will want to see one day. The council’s fee is set nationally against the value of the work and appears as its own line on the quote. Allow a few weeks between submission and grant; we book the fitting week around it rather than turning up and hoping.

Tiles, ceilings and what the room is actually like afterwards

The finish is chosen outdoors against your own roof: slate-effect greys for the darker concrete tiles common on the estates, brown and terracotta profiles where the existing roof is warmer in tone, with ridge, verge and fascia colours matched so the conversion reads as part of the house rather than an addition. Inside, the ceiling is plastered, painted and ready for downlights, and most households add a small radiator or a panel heater so the room joins the same heating routine as everywhere else.

Honestly, then: the overhead glare disappears, rain noise drops to almost nothing, and the room holds its warmth overnight instead of losing it by bedtime. It will not match a cavity-walled extension while three of its walls are still glass, and that is a limit of the building rather than the roof. A small lean-to takes two days on site, a large Victorian or P-shape four to five. Slipped tiles or tired lead noticed on the main roof get photographed and quoted under roof repairs in Bathgate, rotten roofline under fascias and soffits in Bathgate, and the same service one town east is on our Linlithgow conservatory roof page.

Conservatory roof FAQs

How long does a conservatory roof replacement take?

Most conservatory roof conversions in Bathgate take between 3 and 7 days, depending on size and design. We aim to make your conservatory watertight on the first day.

Will I need planning permission or building control?

A tiled conservatory roof replacement usually falls under permitted development, but it does need to meet Building Regulations. We design every conversion to comply.

Will the new roof leak where it meets my house?

Not when it’s done by roofers. Our precision leadwork and weathertight detailing at the join is exactly where non-roofers get caught out.

Can you match the tiles to my house?

Yes. We offer a wide range of slate-effect and shingle finishes and colour-match to your existing roof.

How much does a tiled conservatory roof cost?

Every conservatory is different, so we give a free, no-obligation quote after a quick survey — a clear fixed price, no pressure.

How much should a conservatory roof replacement cost in Bathgate?

For a warm tiled roof, budget from about £5,000 for a small lean-to, £7,000 to £10,500 for the ten to fourteen square metre size most estates here have, and £9,500 upwards for a Victorian or P-shape. A new glass roof is £3,500 to £7,000, like-for-like polycarbonate £2,000 to £5,000. The council warrant fee is shown separately on the quote.

Is putting new polycarbonate back on ever the right call?

Occasionally. If you are selling within a year, or the conservatory is a genuine summerhouse you never heat, fresh 25 to 35 millimetre sheeting is the cheapest way to stop the leaks and clear the view. Be clear about what it does not do: the room will still overheat in July, chill in January and drum in the rain, because none of that is caused by the sheet being old.

Does West Lothian Council have to approve the work?

For a solid roof, yes. Building standards treat the room as an extension once the roof stops being translucent, so a building warrant must be granted before work starts, with a completion certificate issued at the end. Rooms of eight square metres or less are generally exempt, which covers very few conservatories. Replacing glass with glass needs no warrant at all.

Can I get help towards the cost from a Scottish grant scheme?

No. Public energy funding in Scotland is aimed at insulation and heating in the main dwelling and conservatories are specifically excluded, so nothing is available towards a private conservatory roof. If an advert offers a free or funded roof, it is a discount arrangement with conditions rather than grant money, and it is worth reading exactly what is on offer.

Our conservatory went up in 1998. Will it take a tiled roof?

Very often it will. Late-nineties uPVC frames were generally built with a decent eaves beam, and a modern lightweight tile system weighs far less than the traditional timber-and-slate roof those frames are sometimes compared against. What decides it is the base, the corner posts and the beam, all of which we test at survey. If reinforcement is needed you see the cost before you commit.

How long is the whole process, from first visit to finished room?

Reckon on a few weeks for the warrant to be granted after we submit it, then two days on site for a small lean-to or four to five for a large one. We work Monday to Saturday, nine until five, and give you the fitting dates once the warrant is through rather than before. Old roof, offcuts and packaging all leave with us at the end.

Call 01324 321018Mobile