County Durham · England

uPVC window & door repair in Cornsay Colliery, County Durham

Damaged window, door or sill in Cornsay Colliery? We repair it in place, mix the colour on the day and guarantee the work for a year.

  • Repairs from £95
  • Scratches from ladders and furniture
  • Holes from removed fittings and alarms
Surface Doctor technician repairing a wooden kitchen worktop

Trusted uPVC repair in Cornsay Colliery

uPVC repair in Cornsay Colliery, done in place

We fill and refinish the damage to match the frame, including woodgrain finishes. Builders and developers use us for snagging repairs too. Whether it’s chips and dents and holes from removed fittings and alarms, we can usually put it right, on white uPVC, doors & door panels and coloured and woodgrain uPVC alike.

You’re covered for a year from the day of the repair. Just call us if there is a problem and we will come back. Clean with warm soapy water and a soft cloth. Avoid solvents and abrasive cleaners.

Before and after: a chipped white edge filled and refinished
Location
Cornsay Colliery (DH7)
County
County Durham
Guarantee
12 months on all our work
Quote
From £95. Free and fixed, from your pictures
Phone
0345 017 0787
Last updated
23 October 2026

Do you need uPVC repair in Cornsay Colliery?

uPVC is tough but not indestructible: ladders, tools and building work scratch and chip it, candles and cigarettes burn sills, and old fittings leave holes.

Keep an eye out for these signs:

  • Damage during building work
  • Burns on sills
  • Holes from removed fittings and alarms
  • Scratches from ladders and furniture

What your quote should include

  • What protection goes down before work starts
  • What aftercare is recommended
  • How long the guarantee is and what it covers
  • Whether the colour is mixed to match

10 questions to ask before you book

What happens on the day

Visits start with a quick look at the job together, so you know exactly what we’re doing. Next, we cover and mask everything nearby and we start. Allow a few hours, and we’ll tell you if anything changes.

  1. We start by cleaning the frame.
  2. Scratches, chips and holes are filled.
  3. We smooth the repair.
  4. We colour-match the finish, including woodgrain effects.
  5. The repair is blended into the surface around it.

Preparing for the visit

  • Keep a parking space free if you can
  • Let us know which floor the room is on
  • Let us know if it has been repaired before

How to get a price

Pricing is simple: take a close-up of the damage and a photo from further back, send them to us with your postcode, and you’ll get a fixed quote back. There’s no charge for the quote and no obligation.

Send pictures for a quote

Related advice

Why repair rather than replace?

A new window, door 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. There are no surprise extras on the day. What we quote from your photos is what you pay, and if the damage turns out to be different, we discuss it before starting.

Why choose Surface Doctor in Cornsay Colliery

  • One price list for the whole UK
  • CHAS, Constructionline and SafeContractor accredited
  • A fixed quote before you book
  • We leave the room as we found it

Take a look at our pricing.

Cornsay Colliery and nearby

Cornsay Colliery is about 5 miles north of Crook, in County Durham. Wherever you are in the DH7 postcode area, we carry out the work at your property. We cover 329 places across County Durham. You can also see our page for Newcastle upon Tyne, about 15 miles away.

Our repair technicians cover all of DH7. Whether you live on Knox Lane, Hedleyhill Lane and Commercial Street or a nearby road, we can come to you. We also cover the places around Cornsay Colliery: Quebec (1 mile north-east), Esh Winning (1 mile south-east), Waterhouses (2 miles south), East Hedleyhope (2 miles south-west) and Stanley Crook (3 miles south). We also work in nearby towns such as Durham (6 miles east), Consett (6 miles north-west), Newton Aycliffe (13 miles south-east), Bishop Auckland (9 miles south), Spennymoor (8 miles south-east) and Chester-le-Street (8 miles north-east).

Local landmarks in Cornsay Colliery

Well-known places in the area include Brancepeth Castle (4.8 miles south-east) and Ushaw Historic House (3 miles east). The countryside around Cornsay Colliery includes Stanley Moss.

Map of Cornsay Colliery © OpenStreetMap contributors

Should I try a DIY kit first?

You can buy a DIY kit for most repairs, and they can make a small mark look better. The trouble is colour and preparation: kits come in a few standard shades, and without proper cleaning and keying the filler often lifts.

It’s natural to want to try a repair yourself. The risk is that a kit repair hides the damage for a while, then fails, and the old filler has to come out before a proper repair.

For landlords and businesses

Builders use us to fix snagging damage before handover, saving last-minute replacements. Several plots can be done in one visit.

We’re used to working with agents and managing companies. Send the address, pictures and access details.

Cornsay Colliery questions

Do you do work for letting agents?

We do, regularly. We quote for multiple addresses and fit around tenancy changeovers.

Are you accredited?

We are accredited with CHAS, Constructionline, SafeContractor, SMAS Worksafe and Builder’s Profile.

Is it OK to have pets in the house?

Yes, as long as they stay out of the room we’re working in. We’ll tell you when the room can be used again.

Is there any odour?

It depends on the job, but often a little. Ventilation keeps it to a minimum, and it soon fades.

Can you repair several things at once?

Yes, and it’s often cheaper. Send pictures of everything together and we’ll quote them together.

What does uPVC repair cost?

Repairs from £95. Every job gets a fixed quote based on pictures of the damage. Send a close-up and a photo of the whole item with your DH7 postcode.

I rent my home. Can I book you?

We can work for tenants, landlords or agents. Just ensure the landlord agrees.

Will it make a mess?

Very little mess: we sheet and mask everything nearby, and we take our waste away with us.

How we price uPVC repair

Repairs from £95. There are no hourly rates or hidden extras. The price is based on:

  • Whether it’s a chip, crack, burn or wear
  • How hard the colour is to match
  • Whether old repairs or coatings need taking off
  • The material and finish

It helps to know what pushes a price up or down: access, material, the extent of the damage and whether we can do several items together. Send photos and you’ll get a fixed figure.

Getting a price from photos

Phone photos are fine, there is no need for anything special. Just make sure we can see:

  • One picture of the whole window, door or sill
  • The material, if you know it
  • A clear, close picture of the problem area
  • Natural light rather than flash

You do not need a survey visit. 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 a repair can’t fix

We will not take on work that will not last, so these are the limits:

  • 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 will say what we think.

What we work on

  • Window frames & sills
  • Doors & door panels
  • Coloured and woodgrain uPVC
  • White uPVC
  • Conservatory frames
CHAS accredited contractor and Constructionline logos SafeContractor, SMAS Worksafe and Builder’s Profile logos

About our accreditations · Every repair comes with a one-year guarantee.

Read what customers say about us on Trustpilot.