Cornwall · England
uPVC Repair for St John homes
Problem with your window, door or sill in St John? We repair it in place, match it on site and back it with a one-year guarantee.
- Repairs from £95
- Chips and dents
- Damage during building work

About our uPVC repair in St John
The damage is filled and refinished to match the frame, including woodgrain finishes. We also do snagging repairs for builders. We’re often asked to fix holes from removed fittings and alarms and burns on sills, on window frames & sills, white uPVC and coloured and woodgrain uPVC.
Big or small, it’s backed by a one-year guarantee in St John and across Cornwall. Warm soapy water and a soft cloth are all it needs. Avoid solvents and abrasive cleaners.

- Where
- St John (PL11)
- Region
- Cornwall
- Cover
- One year on every repair
- Price
- From £95. Free and fixed, from your pictures
- Telephone
- 0345 017 0787
- Updated
- 23 October 2026
Why repair rather than replace?
Replacing the frame or sill is a much bigger job, and new uPVC may not match the weathered frames around it. A repair leaves the unit in place. Our uPVC repair starts from £95. Every job is a little different, so each one is priced on its own. What’s damaged, how badly and how easy it is to reach all make a difference, and combining jobs on one visit brings the cost down.
Why choose Surface Doctor in St John
- Normally one visit, start to finish
- We leave the room as we found it
- No need to remove anything
- Colour mixed on the day to match
See our full price list.
How it works
From the moment we arrive, the aim is to do the job without disturbing the rest of your home. Surfaces nearby are masked off, the job takes a few hours, depending on what we find, and we finish with a tidy-up and a look at the finished work together.
- First the frame or panel is cleaned.
- Next we fill the damage.
- We sand the repair smooth.
- We match the colour, including woodgrain finishes.
- The repair is blended into the surface around it.
Preparing for the visit
- Mention if the room is upstairs or in a flat
- Let us know about parking or access
- Have somewhere for us to park nearby if possible
Getting a price
Getting a quote takes a couple of minutes: take one close-up and one wider shot of the window, door or sill, add your postcode and send them to us. What comes back is a fixed price, not a guess.
Advice
About St John
St John is about 3 miles south of Saltash, in Cornwall. From the centre of St John to the outlying streets, we offer exactly the same service: fixed prices, tidy work and a one-year guarantee. St John is one of 644 towns and villages in Cornwall we cover.
Jobs in PL11 are booked in the same way as anywhere else. Jobs here include addresses on Church Lane, St Johns Lane and Gooseford Lane and the roads around them. We also travel to Antony (1 mile north-west), Freathy (1 mile south-west), Insworke (1 mile south-east), Millbrook (1 mile south-east) and Southdown (1 mile south-east). We also work in nearby towns such as Stonehouse (3 miles east), Saltash (3 miles north), Liskeard (12 miles north-west), Addington (12 miles north-west), Looe (9 miles west) and Burraton Coombe (3 miles north).
Near you in St John
We visit homes around Torpoint Community College, Church of St John and Antony Church of England School, among other places. The closest station to St John is Dockyard station, roughly 3.1 miles north-east of the centre. Nearby you will also find Elliott's Shop (3.5 miles north) and Plymouth General Hospital (2.6 miles east). Not far away are Penlee Battery.
Landlord and trade work in St John
Letting agents often send us photos straight from the inventory. You can have a price before you arrange access, and we liaise with tenants about access if you’d like us to.
We regularly work with letting and managing agents. Just send pictures, the address and how to get access.
Can I fix it myself?
What a professional repair adds is preparation, colour matching and finishing. We prepare the area properly, mix the colour on site and polish the finish to match, and the work is guaranteed.
We understand the appeal of fixing it yourself. The risk is that a kit repair hides the damage for a while, then fails, and then the old filler has to be removed first.
Prices and what affects them
Prices start from £95. Prices are worked out job by job, from your pictures. The main factors are:
- What kind of damage it is
- Any earlier repairs that need removing first
- How hard the colour is to match
- How much damage there is
Instead of hourly rates, we price the whole job up front. It depends on the damage, the material and access, and combining items on one visit brings it down.
Quotes from your pictures
Photographing the damage takes a minute, and it saves a visit. Please include:
- Something in shot to show the size
- Good light, ideally daylight, without flash glare
- A wider photo showing the whole window, door or sill
- Where you are, by postcode
Ring 0345 017 0787, or send us photos through the quote form. With one close-up and one wider picture, we can price the job.
Also in St John
Common problems we fix in St John
uPVC is tough but not indestructible: ladders and building work leave scratches and chips, candles and cigarettes burn sills, and old fittings leave holes.
The most common problems we are called about are:
- Chips and dents
- Burns on sills
- Holes from removed fittings and alarms
- Damage during building work
What to look for in a quote
- Is the price fixed, and does it include VAT?
- What happens if they find more damage
- If travel is included in the price
- How the room is protected while they work
Common questions in St John
Is repairing better than replacing?
Usually, if the item is otherwise sound. Repairing avoids the cost and disruption of replacing. If replacing would be better, we’ll say so.
What does uPVC repair cost?
Repairs from £95. We give a fixed price based on photos of the damage. Send a close-up and a picture of the entire item with your PL11 postcode.
Is it safe with children and pets around?
Please keep children and pets out of the room during the visit and until it has cured. The rest of the house is unaffected.
Can you repair several things at once?
Yes, and it’s often cheaper. Send pictures of everything together and you’ll get one combined price.
What happens once I’ve sent photos?
You get a fixed quote and available dates. If we need another angle, we’ll ask.
Can you match woodgrain uPVC?
Yes. We recreate the colour and grain by hand.
Can I get a quote without a visit?
Nearly always. We only ask to see it in person if the pictures cannot show what we need.
Can you redo someone else’s repair?
Yes, regularly. Removing the old work can add time, and that’s in the quote.
When we’d advise against a repair
In fairness, there are a few things a repair won’t fix:
- Failed or misted double glazing units
- Broken locks, hinges or mechanisms
- Frames that are warped or out of square
Send us photos and we will tell you honestly before you book.
What we work on
- Doors & door panels
- White uPVC
- Window frames & sills
- Conservatory frames
- Coloured and woodgrain uPVC
About our accreditations · Every repair comes with a one-year guarantee.

