Do I need permission to paint my windows or front door in a Glasgow conservation area?
What counts as maintenance, what needs planning permission or listed building consent, and how to check before you start.
The best window fitters in Glasgow, 2026
Top 10
window fitters.
We looked at around 50 window and double glazing firms working in Glasgow, checked 18 of them in depth across Google, Which? Trusted Traders, Checkatrade, the Glass and Glazing Federation directory and Companies House, and ranked the best ten. Nobody paid to be here.
The table
First edition, so every entry is new · Reviews counted 3 and 4 November 2026
| Pos | Move | Window fitter | Based in | Reviews | Score |
|---|---|---|---|---|---|
| 01 | New | Homeshield Scotland | Gorbals | 1,387 Google | 9.4 |
| 02 | New | Southside Window Systems | Hillington | 337 Which? | 8.4 |
| 03 | New | Art Windows and Doors | Glasgow | 525 Checkatrade | 8.2 |
| 04 | New | Vantage Windows and Doors | Airdrie | 459 Which? | 8.2 |
| 05 | New | Re:Place Windows | City Centre | 572 Google | 8.0 |
| 06 | New | Ultimate Home Solutions | Nitshill | 324 Google | 7.8 |
| 07 | New | Gavin and Wright Windows and Doors | Southside | 106 Which? | 7.6 |
| 08 | New | Carroll's Window and Door Solutions | Cumbernauld | 189 Which? | 7.4 |
| 09 | New | HML Windows and Doors | Coatbridge | 110 Which? | 7.2 |
| 10 | New | Creative Glazing | Hillington | 91 Google | 7.1 |
Ties are split by the unrounded score, then by review count. Every firm listed covers Glasgow.
Why they rank
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Number 1: Homeshield Scotland
Lawmoor Street (G5) · Covers Glasgow and central Scotland
9.4out of 10
The most reviewed window company we found in Glasgow, with a 4.9 from 1,387 Google reviews, and the only firm on our shortlist we could confirm on the Glass and Glazing Federation member directory. It has been a limited company since 2013. It is a larger, sales-led firm that also offers finance, so get a fixed written quote and compare it with at least one other.
- Reviews 3.5 / 4
- Vetting and memberships 2.5 / 2.5
- Track record 2.0 / 2
- Reviews
- 4.9 from 1,387 Google reviews
- Vetting
- Glass and Glazing Federation member (checked on the GGF directory)
- Track record
- Homeshield Scotland Ltd, incorporated May 2013 (SC451255)
- Best for
- uPVC windows and doors, whole house replacements
-
Number 2: Southside Window Systems
Wiltonburn Road (G53) · Covers Glasgow and the west of Scotland
8.4out of 10
A family run firm that says it was established in 1997, a limited company since 2000 and a Which? Trusted Trader since 2014. It scores well on two platforms: 4.9 from 337 Which? reviews and 4.8 from 64 on Google. It also offers sash style windows, so it suits tenement flats as well as houses.
- Reviews 3.5 / 4
- Vetting and memberships 1.6 / 2.5
- Track record 2.0 / 2
- Reviews
- 4.9 from 337 Which? reviews · 4.8 from 64 Google reviews
- Vetting
- Which? Trusted Trader since November 2014. No trade body confirmed.
- Track record
- Southside Window Systems Ltd, incorporated September 2000 (SC211283). Says established 1997.
- Best for
- uPVC and sash style windows, doors, glass replacement
-
Number 3: Art Windows and Doors
Glasgow · Covers the central belt
8.2out of 10
A perfect 10 out of 10 from 525 Checkatrade reviews, built up since it joined in December 2014. Its founders say they have more than 40 years in home improvement, it uses joiners rather than fitters, and it takes no deposit. Only four of those reviews came in the last year, so ask for recent local references.
- Reviews 3.4 / 4
- Vetting and memberships 1.6 / 2.5
- Track record 2.0 / 2
- Reviews
- 10 / 10 from 525 Checkatrade reviews (4 in the last year)
- Vetting
- Passed Checkatrade's vetting checks. No trade body named.
- Track record
- On Checkatrade since December 2014
- Best for
- A rated uPVC windows, composite doors, no deposit installs
-
Number 4: Vantage Windows and Doors
Brownsburn Industrial Estate, Airdrie · Covers Glasgow and central Scotland
8.2out of 10
A perfect 5.0 from 459 Which? reviews, the most of any firm on the Which? list of window companies serving Glasgow, and the Which? Trusted Trader of the Year for 2023. It has been endorsed since 2017 and a limited company since 2011. It is based in Airdrie, so check lead times for jobs in the city.
- Reviews 3.4 / 4
- Vetting and memberships 1.6 / 2.5
- Track record 2.0 / 2
- Reviews
- 5.0 from 459 Which? reviews
- Vetting
- Which? Trusted Trader since May 2017. Trusted Trader of the Year 2023, as stated on its profile.
- Track record
- Vantage Windows and Doors Ltd, incorporated July 2011 (SC402912)
- Best for
- uPVC windows and doors with an insurance backed guarantee
-
Number 5: Re:Place Windows
Bath Street (G2) · Also lists an East Kilbride address
8.0out of 10
A 4.9 from 572 Google reviews and a perfect 5.0 from 31 on Which?, where it has been endorsed since 2021. It fits uPVC windows and doors only, takes no deposit and gives a 10 year guarantee, by its own account. It has been a limited company since 2018, which keeps its track record score just short of full marks.
- Reviews 3.5 / 4
- Vetting and memberships 1.6 / 2.5
- Track record 1.7 / 2
- Reviews
- 4.9 from 572 Google reviews · 5.0 from 31 Which? reviews
- Vetting
- Which? Trusted Trader since August 2021. No trade body named.
- Track record
- Replace Windows Ltd, incorporated August 2018 (SC604962)
- Best for
- uPVC windows and doors, no deposit, 10 year guarantee
-
Number 6: Ultimate Home Solutions
Woodhead Road, Nitshill · Showrooms in Glasgow and Kilmarnock
7.8out of 10
Strong on volume across two platforms: 4.6 from 324 Google reviews and 9.6 out of 10 from 142 on Checkatrade. It fits windows and doors as well as bathrooms (it is number 4 on our bathroom fitters table), and it has traded since 2013. The lower Google average holds it back.
- Reviews 3.05 / 4
- Vetting and memberships 1.6 / 2.5
- Track record 2.0 / 2
- Reviews
- 4.6 from 324 Google reviews · 9.6 / 10 from 142 Checkatrade reviews
- Vetting
- Passed Checkatrade's vetting checks
- Track record
- Ultimate Home Solutions Ltd, incorporated February 2013 (SC442380)
- Best for
- Windows and doors from a showroom, alongside bathrooms
-
Number 7: Gavin and Wright Windows and Doors
Southside (G44) · Covers Glasgow
7.6out of 10
A 4.9 from 106 Which? reviews, plus a smaller 4.8 from 16 on Google. It has been a Which? Trusted Trader since 2019 and a limited company since 2013, and it lists a wide range of glazing work alongside windows and doors.
- Reviews 2.9 / 4
- Vetting and memberships 1.6 / 2.5
- Track record 2.0 / 2
- Reviews
- 4.9 from 106 Which? reviews · 4.8 from 16 Google reviews
- Vetting
- Which? Trusted Trader since May 2019. No trade body named.
- Track record
- Gavin and Wright Windows and Doors Ltd, incorporated November 2013 (SC463743)
- Best for
- Windows, doors and general glazing
-
Number 8: Carroll's Window and Door Solutions
Westfield Industrial Estate, Cumbernauld · Covers Glasgow
7.4out of 10
A perfect 5.0 from 189 Which? reviews, endorsed since 2021. It fits uPVC windows and doors and replaces double and triple glazed units, and it has been a limited company since 2017. It is based in Cumbernauld, to the north east of the city.
- Reviews 3.0 / 4
- Vetting and memberships 1.6 / 2.5
- Track record 1.7 / 2
- Reviews
- 5.0 from 189 Which? reviews
- Vetting
- Which? Trusted Trader since March 2021. No trade body named.
- Track record
- Carroll's Window and Door Solutions Ltd, incorporated March 2017 (SC560867)
- Best for
- uPVC windows and doors, replacement glass units
-
Number 9: HML Windows and Doors
Coatbridge (ML5) · Covers Glasgow and Lanarkshire
7.2out of 10
A perfect 5.0 from 110 Which? reviews, with Which? endorsement going back to 2018. The current limited company was formed in 2019. It fits aluminium as well as uPVC windows and doors.
- Reviews 2.8 / 4
- Vetting and memberships 1.6 / 2.5
- Track record 1.7 / 2
- Reviews
- 5.0 from 110 Which? reviews
- Vetting
- Which? Trusted Trader since September 2018. No trade body named.
- Track record
- HML Windows and Doors Ltd, incorporated November 2019 (SC645917). Which? member since 2018.
- Best for
- Aluminium and uPVC windows and doors
-
Number 10: Creative Glazing
Lintlaw Drive (G52) · Covers Glasgow and Scotland
7.1out of 10
A 4.9 from 91 Google reviews and a 4.9 from 29 on Which?. It makes, fits and repairs glazing from its own studio in Glasgow and offers same day call outs. Companies House currently shows its confirmation statement as overdue, which cost it points on track record.
- Reviews 2.7 / 4
- Vetting and memberships 1.6 / 2.5
- Track record 1.7 / 2
- Reviews
- 4.9 from 91 Google reviews · 4.9 from 29 Which? reviews
- Vetting
- Which? Trusted Trader. No trade body named.
- Track record
- Creative Glazing Ltd, incorporated August 2015 (SC513270). Confirmation statement shown as overdue.
- Best for
- Glass repairs, misted units, same day call outs
Just outside the ten
Good firms that missed out on this edition
- Window Advice CentreFinnieston · 4.7 from 88 Google reviews · Which? Trusted Trader since 2014 · 7.1
- Strathclyde WindowsGlasgow · 5.0 from 262 Google reviews · no vetting found · 6.9
- Dolan Windows and DoorsWishaw · 10 / 10 from 76 Checkatrade reviews · 6.4
- LW Sash and Case WindowsGlasgow · sash and case specialist · 5.0 from 128 Google reviews · 6.1
- Composite Door Company GlasgowWishaw · 9.9 / 10 from 479 Checkatrade reviews · mainly a door specialist, so not ranked here
How we scored this table
We built a long list from Google Maps, Which? Trusted Traders, Checkatrade and the Glass and Glazing Federation directory, then checked 18 firms in depth. Each got a score out of ten from the checks on the right. The table is that score, highest first. Full method
There is no compulsory registration scheme for window fitters in Scotland, and FENSA and CERTASS only apply in England and Wales. Full marks on our second check go only to firms we confirmed on the Glass and Glazing Federation member directory. Google Maps blocked our checks partway through, so some firms are scored on one platform. Responsiveness has not been tested yet; scores are based on the other three checks, scaled to ten.
-
Reviews4 points
Volume and average rating on the main platform, plus credit for strong reviews on a second platform.
-
Vetting and memberships2.5 points
Full marks for GGF membership we confirmed ourselves. Independent vetting such as Which? Trusted Traders or Checkatrade scores less.
-
Track record2 points
Years trading, backed by Companies House or a membership date. Points come off for overdue filings.
Before you hire a window fitter in Glasgow
New windows are one of the bigger jobs most homeowners pay for, and the double glazing trade still has a reputation for pushy selling. A few checks protect you.
Check whether you need permission
Glasgow has many conservation areas, and many tenements and villas are listed. Changing the style or material of windows in those buildings usually needs consent from the council. Our guide on windows and doors in Glasgow conservation areas explains what to ask.
Get the full specification in writing
Ask for the window energy rating or U-value, the glass and frame type, the locks, what happens to the old frames, how the openings will be made good, and the guarantee. Compare like with like across at least two quotes.
Be careful with deposits
Several firms on our list take no deposit. If a firm does ask for one, keep it small and ask whether it is protected by an insurance backed scheme.
Good to know
- Building standards. In Scotland, replacing windows does not usually need a building warrant, but the new windows still have to meet the building standards, including for energy efficiency. A good fitter will explain this.
- Sash and case windows can often be repaired, draught proofed or fitted with slim double glazed sashes, which keeps the look of a traditional building.
- Tenement title deeds can control how windows look from the street. Check yours, and speak to your factor or neighbours if the work affects shared parts of the building.
Questions
Who is the best window fitter in Glasgow?
In our 2026 table, Homeshield Scotland comes top with 9.4 out of 10. It has a 4.9 from 1,387 Google reviews and is the only firm on our shortlist we confirmed as a Glass and Glazing Federation member. Southside Window Systems is second with 8.4.
Do window fitters in Scotland need FENSA?
No. FENSA and CERTASS certificates are part of the building regulations system in England and Wales. Scotland has its own building standards, so a Scottish window fitter does not need to be FENSA registered. Membership of the Glass and Glazing Federation, which sets a code of practice for its members, is a better sign here.
Do I need permission to replace windows in a tenement?
Often, yes, in some form. If your building is listed or in a conservation area, changing the style or material of the windows usually needs consent from Glasgow City Council. Title deeds for tenement flats can also control how windows look. Check before you sign a contract.
Did any of these window fitters pay to be listed?
No. Nobody can buy a place in the table. Some firms pay to be on Checkatrade or Which? Trusted Traders, but that only counts here because those schemes check identity, insurance and references.
How often is this table updated?
Once a year. Each annual edition is a full review of every firm, and from the 2027 edition the movement column will show who has climbed or dropped since the year before.
Guides for window and door work
All guides
Which locks does my home insurance require?
What BS3621, multipoint locking, TS007 and PAS 24 mean, and how to check your doors against your policy.
Do I need a permit for scaffolding or a skip in Glasgow?
Current council fees for skips and scaffolding, who normally applies, and the fixed penalty for going without.
Other tables
Glasgow window fitter not on the list?
Send us your GGF membership number and where we can read your reviews. Getting assessed is free. Getting ranked is earned.