Installations

Replacement Windows Bristol

Time to replace your windows? The UPVC Doctor Southwest supplies and fits replacement windows across Bristol and Bath — a like-for-like upgrade of tired, draughty, misted or hard-to-open windows, using your existing openings.

A-rated as standard, no deposit, and a 10-year guarantee. We are FENSA approved, so qualifying work comes with a Building Regulations certificate.

Get your free quote

Call 07831 623115

No call-out charge

No deposit

10-year guarantee

FENSA approved

15+ years experience

Windows

When is it time to replace rather than repair?

We are repair-first, so if a single failed part is the problem we will say so. But replacement makes sense when the issues are across the house rather than one window.

Several windows are draughty even after new seals.
Multiple sealed units have misted or blown.
The frames are yellowed, warped or cracked.
The windows are hard to open, close or lock across the property.
You want better security, warmth and kerb appeal in one go.

What you get

A complete supply-and-fit service: A-rated UPVC frames, energy-efficient sealed units, new handles, locks and hinges, and all finishing trims. We match the style and colour to your home, and tidy up fully when we are done.

Most homes are fitted within a day and a half, with a typical 2–4 week lead time while your made-to-measure windows are built.

Get a fixed price

Send a photo and a postcode — we’ll come back the same day with honest advice and a price.

Get your free quote

or call 07831 623115
Mon–Fri, 8am–5pm

Installations

Not sure if you need repair or replacement? Just misted units? A repair may do

Process

How we generally work

Send us a message (a photo helps) or call. We reply the same day.

We book a visit to suit you — same or next-day slots are often available.

We assess the repair or installation on site and give you a fixed price with no hidden extras.

If you are happy to go ahead, we carry out the work — most repairs are done in a single visit.

Frequently asked questions

Can’t see your question? Send us a message and we’ll answer it the same day.

Ask us a question

2026-08-13T01:25:46+01:00

      EXCELLENT  
   Based on 283 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   REUBEN KEVIN MBUYANE 
 
 
 
 Trustindex verifies that the original source of the review is Google. From the first phone call to the completed work, everything was handled professionally. Fast turnaround and outstanding service.
  
 
      Posted on Google  
   
   Tia Jordan 
 
 
 
 Trustindex verifies that the original source of the review is Google. Our new bathroom window looks fantastic. The installation was neat, professional, and completed exactly as promised.
  
 
      Posted on Google  
   
   Sean Garner 
 
 
 
 Trustindex verifies that the original source of the review is Google. All our windows were adjusted perfectly,and they now open and close effortlessly.Couldn't be happier with the result.
  
 
      Posted on Google  
   
   GRETHEL ANIELKA 
 
 
 
 Trustindex verifies that the original source of the review is Google. Replacing the worn window seals has made a huge difference to our home's warmth. Excellent work and great advice.
  
 
      Posted on Google  
   
   Charles Hughes 
 
 
 
 Trustindex verifies that the original source of the review is Google. Fantastic customer service throughout. They were punctual, polite, and clearly cared about doing a quality job.
  
 
      Posted on Google  
   
   Toby Chapman 
 
 
 
 Trustindex verifies that the original source of the review is Google. Needed several window handles replaced, and they completed the job quickly with excellent attention to detail. Highly recommended.
  
 
      Posted on Google  
   
   William Hopper 
 
 
 
 Trustindex verifies that the original source of the review is Google. We finally had our sticking front door adjusted properly. It now works perfectly, and the workmanship was first-class.
  
 
      Posted on Google  
   
   Isabella Clements 
 
 
 
 Trustindex verifies that the original source of the review is Google. They repaired a leaking window that had been causing damage for weeks. Everything was fixed efficiently, and the service was outstanding.

Get your free, no-obligation quote

Fill in the form below with a few details about the problem (and a photo if you have one) and we’ll reply the same day with honest advice and a clear price. No call-out charge, no deposit.

Tell us what’s happening

Same-day reply, Monday to Friday.

Prefer to talk? Call 07831 623115, Monday to Friday, 8am–5pm.

Need urgent help? See our emergency repairs.

Replacement Windows Bristol

When is it time to replace rather than repair?