South Gloucestershire · England
uPVC window & door repair in Northwick, South Gloucestershire
Damaged window, door or sill in Northwick? We put it right where it is, mix the colour on the day and guarantee the work for a year.
- Repairs from £95
- Scratches from ladders and furniture
- Chips and dents

Repairing versus replacing in Northwick
A new window, door or sill costs far more, and new uPVC may not match the weathered frames around it. A repair keeps the original. Repairs from £95, with every job priced individually. 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 Northwick
- CHAS and Constructionline accredited
- Fixed prices from your photos
- One price list for the whole UK
- Dust sheets down, tidy finish
Read our pricing.
How we handle uPVC repair in Northwick
We also do snagging repairs for builders. The damage is filled and refinished to match the frame, woodgrain finishes included. Common call-outs are for chips and dents and holes from removed fittings and alarms, in coloured and woodgrain uPVC, window frames & sills and conservatory frames.
A one-year guarantee comes with the work, just as it does everywhere we cover. Warm soapy water and a soft cloth are all it needs. Avoid solvents and abrasive cleaners.
- Location
- Northwick (BS35)
- County
- South Gloucestershire
- Warranty
- 12 months on all our work
- Price
- From £95. Free and fixed, from your photos
- Call
- 0345 017 0787
- Last updated
- 23 October 2026

Landlord and trade work in Northwick
We regularly price jobs from inventory or check-out pictures. That means we can quote before you even visit the property, and we liaise with tenants about access if you’d like us to.
We regularly work with letting and managing agents. Send the address, pictures and access details.
The process
Visits start with a quick look at the job together, so you know exactly what we are doing. Next, we cover and mask everything nearby and we start. Allow a few hours.
- We clean the frame or panel.
- We fill scratches, chips and holes.
- We sand the repair smooth.
- The finish is colour matched, woodgrain included.
- Finally we blend it into the rest of the frame.
Before we arrive
- Let us know about parking or access
- Have somewhere for us to park nearby if possible
- Let us know if it has been repaired before
Getting a price
Upload pictures of the damage and one of the entire item, with your BS35 postcode, and we will reply with a fixed price.
Read more
About Northwick
Northwick is about 5 miles south of Chepstow, in South Gloucestershire. Jobs in Northwick are booked in like any other job: a fixed quote from pictures, then a visit to do the work. We work in 110 places in South Gloucestershire. We work right across the region, from Northwick to Birmingham (69 miles away).
All of BS35 is within our area, from the main roads to the quietest streets. If you’re just outside Northwick, we cover New Passage (1 mile south-west), Redwick (1 mile south-west), Pilning (1 mile south), Old Passage (1 mile north) and Severn Beach (2 miles south-west). Larger places within reach include Kingswood (11 miles south-east), Mangotsfield (9 miles south-east), Yate (10 miles east), Fishponds (8 miles south-east), Bradley Stoke (5 miles south-east) and Thornbury (6 miles north-east).
Local landmarks in Northwick
In Northwick, that means homes near Church of St Thomas, Pilning Playing Fields and St Peter's Anglican / Methodist VC Primary. Northwick’s nearest station is Pilning station, about 1.5 miles south of the centre. Nearby you will also find Chepstow Community Hospital (4.7 miles north-west) and Moynes Court (3.5 miles north-west). Green spaces nearby include Red Hill.
Also near Northwick
What else we do in Northwick
Prices and what affects them
Repairs from £95. You will know the full cost before you book. We look at:
- The colour and finish to match
- How many items we do on one visit
- How many areas need work
- What the surface is made of
The price reflects the work involved, not your postcode. The full price is agreed before you book, with no extras added later.
How to get a fixed quote
Good pictures mean an accurate price. Here’s what we find most useful:
- Good light, ideally daylight, without flash glare
- A picture taken from further back
- The material, if you know it
- A clear, close picture of the problem area
Call 0345 017 0787 or use the quote form. With a clear picture of the damage and one of the whole window, door or sill, we can give you a fixed quote.
Should I try a DIY kit first?
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.
The difference between a kit and a professional repair is mostly in the preparation and colour. We clean and key the area properly, mix the colour to your surface and finish it to the same sheen, then guarantee it for a year.
Common problems we fix in Northwick
uPVC is hard-wearing, but it does get damaged: ladders and building work leave scratches and chips, candles and cigarettes mark sills, and removed fittings leave holes.
Get in touch if you’ve noticed:
- Chips and dents
- Scratches from ladders and furniture
- Damage during building work
- Holes from removed fittings and alarms
What to look for in a quote
- What happens if the damage is worse than the pictures show
- Whether the price is fixed and includes VAT
- When it can be used again
- What prep work is covered
Your questions about uPVC repair in Northwick
What if the damage is worse than the pictures show?
Your quote covers the damage in the photos. Anything extra is discussed before we begin.
Do the materials smell?
A little, depending on the job. Open windows and an extractor fan help.
It’s been repaired before. Can you still fix it?
Yes, we frequently do. It can add a little time, which we include in the quote.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Many landlords are happy for a repair to be arranged before the end of a tenancy.
How soon can you come?
That depends on our diary for your area. We will offer you dates when we send your quote.
Can you repair several things at once?
Yes. Combining jobs on one visit brings the cost down. Include pictures of each item.
Do you charge for travel?
Travel is included in the price, with the same prices everywhere we work.
How do I get a price for uPVC repair in Northwick?
Prices start from £95. We give a fixed quote from your photos. Send a close-up of the damage and a wider photo with your BS35 postcode.
What we cannot put right
To be straight with you, some problems need a different 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.
Surfaces we repair
- Coloured and woodgrain uPVC
- Conservatory frames
- Doors & door panels
- Window frames & sills
- White uPVC
About our accreditations · Every repair comes with a one-year guarantee.

