Surrey · England
uPVC window & door repair in Knaphill, Surrey
Local uPVC repair for Knaphill: photo quotes, tidy work and a year’s guarantee.
- Repairs from £95
- Burns on sills
- Damage during building work
DIY kit or professional repair?
If you’ve already tried a DIY fix, that’s fine. We take the old repair out and do it properly, so it will not stop us repairing it. It does add a little time, so tell us about it when you send photos.
DIY kits are sold for most surfaces, and they can make a small mark look better. Where they fall down is colour and preparation: kits come in a few standard shades, and without proper cleaning and keying the filler often lifts.
uPVC repair in Knaphill without replacing anything
Builders and developers use us for snagging repairs too. The damage is filled and refinished so it blends into the frame, woodgrain finishes included. We work on white uPVC, doors & door panels and conservatory frames, and common reasons people get in touch are burns on sills and damage during building work.
All of our repairs are guaranteed for twelve months in Knaphill and everywhere else. If something goes wrong with the work, we come back. Clean with warm soapy water and a soft cloth. Don’t use solvents or scourers.
- Area
- Knaphill (GU21, GU24)
- County
- Surrey
- Warranty
- A year, on every repair
- Quote
- From £95. Free and fixed, from your pictures
- Telephone
- 0345 017 0787
- Last updated
- 23 October 2026
How it works
Your technician turns up when we said we would and looks over the damage before anything else. The floor and nearby surfaces are covered before we open a single tin. The work itself takes a few hours, and the room is left clean and tidy.
- First the frame or panel is cleaned.
- Scratches, chips and holes are filled.
- We sand the repair smooth.
- We colour-match the finish, including woodgrain effects.
- Finally we blend it into the rest of the frame.
Preparing for the visit
- Tell us about any previous repairs or coatings
- Mention if the room is upstairs or in a flat
- Mention any parking restrictions or tricky access
Getting a price
We price from photos so you do not have to wait in for a survey. Use the quote form, or ring 0345 017 0787 to talk it through, and you’ll get a fixed figure back.
Related advice
Signs you need uPVC repair in Knaphill
uPVC is tough but not indestructible: ladders and building work leave scratches and chips, candles and cigarettes mark sills, and old fittings leave holes.
These are the problems we are asked about most:
- Burns on sills
- Damage during building work
- Scratches from ladders and furniture
- Holes from removed fittings and alarms
Questions to ask before booking
- Whether the colour is mixed to match
- How long the guarantee is and what it covers
- How changes to the job are handled
- Whether the price is fixed and includes VAT
Prices and what affects them
Repairs from £95. We price every job individually. The main factors are:
- How many areas need work
- The material and finish
- Unusual colours or finishes
- Where the damage is and how we get to it
Rather than charging by the hour, we fix the price before we start. Damage, material and access decide it, and combining items on one visit brings it down.
How to get a fixed price
Before you send photos, these tips help us give you a firm price:
- A close-up of the damage, in focus
- A coin beside the damage so we can judge size
- Whether it’s been repaired or coated before
- What it’s made of, if you know
There’s no need for us to visit first. Photos are enough for us to price nearly every job: send a close-up, a wider shot and your postcode, and we’ll come back to you with a fixed figure.
What we cannot put right
In fairness, there are a few things a repair will not fix:
- Failed or misted double glazing units
- Broken locks, hinges or mechanisms
- Frames that are warped or out of square
If in doubt, send photos and we’ll say what we think before booking.
Materials we work on in Knaphill
- Window frames & sills
- Conservatory frames
- White uPVC
- Coloured and woodgrain uPVC
- Doors & door panels
Towns and villages near Knaphill
Also in Knaphill
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. Repairs from £95, with every job priced individually. What it costs depends on how much damage there is and what kind, what it’s made of and how many items we do on one visit. You get a fixed price from your pictures, so you know the cost before you book.
Why choose Surface Doctor in Knaphill
- No extra charge for your area
- Rooms protected and left tidy
- Straight answers about what a repair can do
- Colours mixed by hand to suit your surface
Take a look at our prices page.
Knaphill questions
How quickly can you book me in?
It depends on the time of year and where you are. Send pictures with your postcode and we will reply with the earliest dates.
Do you charge for travel?
No. Our quotes include travel, with the same prices everywhere we work.
What do you need from me?
Use the quote form or ring 0345 017 0787, and we’ll take it from there.
Will you leave a mess?
Very little mess: we sheet and mask everything nearby, and we take our waste away with us.
Can a burnt window sill be fixed?
Yes. We fill and refinish the burnt area to match.
What areas do you cover?
We cover the whole UK, including Knaphill and the rest of Surrey. Send your postcode with your photos and we’ll confirm dates.
Is it worth repairing rather than replacing?
Normally, when the rest is in good condition. A repair avoids removal and making good. If replacing would be better, we will say so.
How much does uPVC repair cost in Knaphill?
Prices start from £95. We give a fixed price from your photos. Send a close-up and a photo of the whole item with your GU21 postcode.
Work for landlords and builders
We’re used to working with agents and managing companies. Send the address, pictures and access details and we’ll handle the rest.
Hotels, guest houses and holiday lets cannot afford rooms out of action for long, so we keep visits short and tidy. We will fit around changeovers where we can.
Covering Knaphill
Knaphill is about 2 miles west of Woking, in Surrey. From the centre of Knaphill to the outlying streets, the service is the same: fixed prices, tidy work and a one-year guarantee. Knaphill is one of 395 towns and villages in Surrey where we work. You can also see our page for London, about 26 miles away.
Here we cover the GU21 and GU24 postcode area. That includes homes on Wood Lane, High Street and Barnby Road. Close by, we cover Bisley (1 mile north-west), Sheet's Heath (1 mile south-west), Castle Green (1 mile north), Brookwood (1 mile south-west) and Penny Pot (1 mile north). Larger places within reach include Guildford (5 miles south), Camberley (5 miles west), Epsom (15 miles east), Farnham (11 miles south-west), Egham (8 miles north) and Walton-on-Thames (10 miles north-east).
Landmarks near Knaphill
Locally, our jobs take us to homes close to The Winston Churchill School A Specialist Sports College, Anchor Inn and Knaphill School and the streets around them. Nearby too are St Hugh of Lincoln's Church (less than half a mile south-east) and Brookwood Lye (0.8 miles south). Knaphill’s nearest station is Brookwood station, roughly 1.4 miles south-west of the centre. A little further out are The Peacocks (2.5 miles east) and Brookwood Hospital (less than half a mile south). The countryside around Knaphill includes Brookwood Lye.
About our accreditations · Every repair comes with a one-year guarantee.
