Replacement uPVC Windows in Bristol
New windows fitted across Bristol — send a photo, get a price.


From £600 + VAT per window£720 inc VAT
★★★★★ Google review · Jan 2026“…got back to us quickly with a very reasonable price quote. The new window was fitted efficiently a couple of weeks later and we are very happy with the finished result!”
Catherine — Bristol
- No salesman
- Assure certificate
- Made to measure in 3–6 weeks
Just need a repair? Window repairs →
New uPVC windows measured, supplied, and fitted across Bristol. Casement and sash styles available. Send us a photo for a rough price; once you're happy with it we come and measure, give you a written quote, then fit it ourselves. This page is for full window replacement — if your existing windows just need a repair, see our window repair service.
20 years experience · Assure Register accredited · Fully insured · Free photo quotes
A window replacement, start to finish
Which window style do you need?
Most Bristol homes need casement windows — the standard side-hung or top-hung style. If you have a period property with traditional sliding sash, uPVC sash windows replicate the look with modern performance.
Window Installation in Bristol
New windows make sense when the frames are warped, rotten, or beyond economical repair — or when you simply want better energy efficiency, security, and appearance. If only the glass has failed, a sealed unit replacement is usually cheaper and quicker.
We handle everything from survey to fitting: measure up, supply the windows, remove the old ones, install the new ones, and leave the job clean and finished. Qualifying installations carry a 10-year manufacturer warranty on glass and frames, and every job is Assure Register certified for building regulation compliance.
Why choose us?
- ✓ Price from your photos — then we come and measure (measuring up is free)
- ✓ Supplied and fitted by our team — no subcontractors
- ✓ Old windows removed and disposed
- ✓ Assure Register certified — building regulation compliance included
- ✓ 10-year manufacturer warranty on the glass and frame
- ✓ Clean finish — beading, sills, and trims all part of the job
What is the Assure Register?
The Assure Register is a government-approved competent persons scheme for window and door installers. Being Assure Register accredited means we are certified to self-certify that our installations comply with building regulations, without you needing to apply for building control approval separately.
When you have new windows installed by an Assure Register member, you receive a certificate that proves the work complies with building regulations. This is important if you ever come to sell your home.
Wondering about cost or timing? See how much it costs to replace a uPVC window in Bristol and how long double-glazed windows last.
Pricing
All prices plus VAT unless stated. Exact price confirmed after assessment — no surprises.
| Service | Price |
|---|---|
| New uPVC window (supplied and fitted) (per window) | From £600 + VAT |
Prices are a guide. Final price confirmed after we've assessed the job. We'll always agree the price before starting work.
Frequently Asked Questions
- A single window usually takes about half a day, 3–4 hours including setting up and clearing away. On bigger jobs we fit around 3–4 windows a day, so a whole house takes a few days. From deposit to fitting day is usually 3–6 weeks.
- Assure does the same job as FENSA — it's a government-approved scheme that lets us sign off our own work as meeting building regulations. You get an Assure certificate for every install; keep it for when you sell your home.
- In most cases, no — replacing like-for-like windows doesn't need planning permission.
- New windows and doors come with a 10-year manufacturer warranty on the glass and frame, sorted through us. Moving parts (locks, hinges and handles) have a 1-year warranty. You also get an Assure certificate for every install.
More questions? See our full list of window and door FAQs.
Bristol areas we cover
We cover most Bristol postcodes, plus Portishead and Bradley Stoke as standard. Find local information for your area:
- → Clifton & Redland
- → Bishopston & Horfield
- → Bedminster & Southville
- → Stoke Bishop & Westbury-on-Trym
- → Bradley Stoke & Filton
- → Portishead
- → Brislington & St Anne's
Not listed? See every area we cover — or check our window and door repair prices, which are the same whatever your postcode.
Get a free quote
Describe the problem and add photos if you have them. We'll be in touch shortly.
Photo quotes are free, and so are visits to quote bigger jobs or measure up. The only visit we charge for is coming out to find what's wrong with a repair: £95 + VAT (£114 inc VAT), taken off the job if you go ahead with the work within 30 days.