Hertfordshire · England
uPVC window & door repair in St Nicholas, Hertfordshire
uPVC repair in St Nicholas without the cost of replacing. Send us photos for a fixed quote, then we come to you.
- Repairs from £95
- Scratches from ladders and furniture
- Burns on sills

uPVC repair in St Nicholas without replacing anything
Builders and developers use us for snagging repairs too. We fill and refinish the damage so it blends into the frame, woodgrain finishes included. Whether it’s holes from removed fittings and alarms and chips and dents, we can normally put it right, on white uPVC, coloured and woodgrain uPVC and conservatory frames alike.
Big or small, you get the same one-year guarantee in St Nicholas and across Hertfordshire. Clean with warm soapy water and a soft cloth. Avoid solvents and abrasive cleaners.

- Where
- St Nicholas (SG1, SG2)
- County
- Hertfordshire
- Guarantee
- One year on every repair
- Price
- From £95. Free and fixed, from your photos
- Telephone
- 0345 017 0787
- Page updated
- 23 October 2026
When we would advise against a repair
Some jobs are not right for a repair, for example:
- Failed or misted double glazing units
- Broken locks, hinges or mechanisms
- Frames that are warped or out of square
Send us pictures and we’ll tell you honestly before booking.
Materials we repair
- Window frames & sills
- Conservatory frames
- Coloured and woodgrain uPVC
- Doors & door panels
- White uPVC
What else we do in St Nicholas
Common questions in St Nicholas
Can you redo someone else’s repair?
Usually, yes. The old repair comes out first, so mention it when you send photos.
Can you repair several things at once?
Yes, and it’s often cheaper. Just add the extra items to your pictures and we will quote them together.
Will it make a mess?
No. The work area is masked and covered, 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.
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’ll reply with the earliest dates.
Is there a guarantee?
Yes: twelve months. If there’s a problem with the work in that time, we come back and put it right.
How do I get a price for uPVC repair in St Nicholas?
Repairs from £95. The exact price depends on the damage, so we quote from photos. You’ll get a fixed figure before booking.
What if the damage is worse than the photos show?
It’s rare, but if it happens we talk to you first. The price only changes if you agree.
For landlords and businesses
Builders use us to fix snagging damage before handover, so there is no need to replace a damaged item at the last minute. We can visit several plots in one trip to keep costs down.
We also carry out snagging repairs for builders and developers, fixing chips and scratches before handover so nothing needs replacing. We hold CHAS, Constructionline and SafeContractor accreditations.
Where we work around St Nicholas
St Nicholas is about 1 mile north of Stevenage, in Hertfordshire. Clients in St Nicholas get the same service as everywhere else we cover: a fixed quote from your pictures, and a technician at your door on the day. St Nicholas is one of 381 places in Hertfordshire we cover. We work right across the region, from St Nicholas to London (about 30 miles away).
Postcode districts we cover here: SG1 and SG2. Jobs here include addresses on York Road, Ripon Road and Drury Lane and the roads around them. If you’re just outside St Nicholas, we cover Rooks Nest (1 mile west), Pin Green (1 mile south-west), Chells (1 mile south-east), Stevenage (1 mile south) and Bedwell (1 mile south-west). Larger places within reach include St Albans (14 miles south-west), Bishop's Stortford (15 miles east), Welwyn Garden City (9 miles south), Harpenden (10 miles south-west), Hitchin (4 miles north-west) and Hoddesdon (14 miles south-east).
Local landmarks in St Nicholas
Our clients here include homes close to The Nobel School, Church of Saint Nicholas and All Saints Church and the streets around them. For rail, the closest station is Stevenage station, about 2 miles south-west. Other landmarks nearby include Wymondley Castle (2.7 miles north-west) and Stevenage Museum (1.8 miles south-west). Green spaces nearby include Pryor's Wood.
Repairing versus replacing in St Nicholas
A new window, door or sill costs far more, 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. Rather than charging by the hour, we price the whole job up front. Damage, material and access decide it.
Why choose Surface Doctor in St Nicholas
- Colours mixed by hand to suit your surface
- Rooms protected and left tidy
- Nothing taken out or refitted
- A fixed quote before booking
Take a look at our pricing.
What we’re called out for in St Nicholas
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.
It’s worth getting a quote if you see:
- Chips and dents
- Damage during building work
- Scratches from ladders and furniture
- Burns on sills
Comparing quotes
- What the guarantee covers, and for how long
- Whether they match the colour on site
- Aftercare advice
- What prep work is covered
DIY repairs versus a professional job
It’s tempting to reach for a kit, but many of the jobs we do start with putting right a DIY repair. Getting it right first time is typically cheaper.
If you’ve already tried a DIY fix, that is fine. We remove the old filler and start again, so it doesn’t stop a professional repair. It does add a little time, so tell us about it when you send photos.
How we price uPVC repair
Prices start from £95. We charge the same across the UK, including St Nicholas. What changes the price is:
- How easy the damage is to reach
- Whether we combine several jobs
- Unusual colours or finishes
- What kind of damage it is
We do not add extras on the day. The price we quote from your photos is the price you pay, unless the damage turns out to be different, in which case we talk to you first.
Getting a price from pictures
Before you send pictures, a few simple things make all the difference:
- A coin or ruler next to the damage for scale
- A close-up of the damage, in focus
- Your postcode, so we can check dates
- Good light, ideally daylight, without flash glare
Getting a price is easy: snap the damage close up and then the whole item, send them to us with your postcode, and we’ll reply with a fixed price. Quotes are free and you’re under no obligation.
What happens on the day
From the moment we arrive, we keep the work contained to the one room. Surfaces nearby are masked off, the work takes a few hours, depending on what we find, and we finish with a tidy-up and a look at the finished work together.
- We start by cleaning the frame.
- We fill scratches, chips and holes.
- We smooth the repair.
- We match the colour, including woodgrain finishes.
- Finally we blend it into the rest of the frame.
Getting ready for the visit
- Let us know if it has been repaired before
- Move bottles, mats and clutter away from the area
- Let us know about parking or access
Ask for a price
Most clients in St Nicholas get their price from photos. Tell us what happened and where you are, and we’ll reply with a fixed quote and the earliest dates we have.
Read more
About our accreditations · Every repair comes with a one-year guarantee.

