Endorsed by Which?

Southside Window Systems Limited

4.9

326 Reviews

Opening Hours
Today - 07:30–13:00
  • Monday 07:30–16:30
  • Tuesday 07:30–16:30
  • Wednesday 07:30–16:30
  • Thursday 07:30–16:30
  • Friday 07:30–13:00
  • Saturday - Closed
  • Sunday - Closed

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About

Southside Window Systems are a specialist Windows and Door company. supplying and installing Double Glazing , UPVC Windows and UPVC Doors in and around Glasgow.

Established in 1997, we are a family run business that supplies and installs Rehau Total 70S Double Glazing UPVC Windows in Glasgow and Doors in Glasgow to trade and public. All of our Double Glazing Units are manufactured directly from the Pilkington factory.

Southside Window Systems Ltd are associate members of rehau with a 10 year guarantee available.

Our team of highly skilled fitters all have a minimum of 10 years experience in the trade and all have to be trained to Rehau's high standards with customer care and quality being the top priority.

All our products are custom manufactured on an individual basis to match your own personal requirements.

With our fantastic choice of windows and doors in a range of styles and finishes (including sash windows in Glasgow),

What we do

  • Double glazing

    • Double glazing installation
    • Double glazing suppliers
    • Double glazing repairs
  • Doors

    • Patio doors
    • Bi-fold doors
    • Composite doors
    • UPVC doors
    • French doors
    • Front door
  • Glaziers

    • UPVC Windows
    • Sash windows
    • Double glazed units
    • Double glazing installation
    • Replacement window services and repairs
    • Stained glass
  • More Services

    • palladio door

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

4.9
326 reviews
Customer Service
5.0
Quality
5.0
Value
4.9
Sort by
Delighted with Replacement Windows
Customer Service
Quality
Value
Extremely pleased with the work done by Southside Windows. We’ve had 2 bay windows replaced. They are of very high quality and look great enhancing the appearance of front of house. The fitters Ian and Michael did a wonderful job. There was no mess and all debris removed swiftly. This has been a really worthwhile experience and we would highly recommend Southside Windows to our friends and associates.
Customer in East Renfrewshire Posted on 08/01/2026 , work completed 08/01/2026
Brilliant
Customer Service
Quality
Value
Really impressed with Southside Windows. Great Windows, excellent and professional fitters. Did the job on time, cleaned and tidied afterwards, really couldn't fault a single thing.
Customer in Glasgow City Posted on 15/01/2026 , work completed 15/01/2026
Excellent Job
Customer Service
Quality
Value
This was a tricky job due to very large windows and a challenging parking situation. The guys did a fabulous job with no complaints and a very cheery, 'can do' attitude. They worked very hard all day and completed the job as promised the same day and to a very high standard, including a decent clean up. Highly recommended.
Customer in Edinburgh Posted on 09/03/2026 , work completed 02/03/2026
New windows/Door
From the first appointment to receiving quote Russell was great informing me of what needed to be done. Nicole always sent me emails keeping me informed of each stage from sending quote to installation date. The fitters turned up on time put dust sheets everywhere started upstairs first as my husband is ill, next day they fitted downstairs which ment each day we were not in their way. After the work was finished they brushed and hovered everywhere cleaned the floors even dusted the TV unit the 3 fitters had gone above and beyond to make sure everything was done to my requirements.
Customer in South Lanarkshire Posted on 12/02/2026 (Reviewer did not use service)
Great job
Customer Service
Quality
Value
Workmen arrived on time, very professional and the job was completed on time. They tidied up after themselves and windows were installed to a high standard.
Fiona, Lanarkshire Posted on 08/02/2018 , work completed 08/02/2018
No problems
Customer Service
Quality
Value
We wanted new storm doors and contacted 3 or 4 well known firms but because the size we needed was not standard (our entrance porch is narrow) we were being told we could not get the doors. Only Southside windows was able to help us because they could get the doors made to our requirements. They sent someone out to take the measurements and discuss what we wanted. We are shielding my husband so the guy never came into the house. I was told it would take about 4 weeks for the doors to be ready and that was about right. We were contacted with a date and the fitter turned up on that day and fitted the doors in a morning. No one came into the house and everything was as we requested at the measure - up. The fitter even put our door bell back on for us. Only had the doors for 2 days so there is still time for problems to show up - but I cannot say I am expecting any. The doors seem good quality and the locks work smoothly.
Customer in East Renfrewshire Council Posted on 02/12/2020 , work completed 30/11/2020
First Class Job
Customer Service
Quality
Value
Measurement & Quote: carried out in swift and professional manner. Fitting: Carried out in a professional manner by Owen and Graham. Real hard workers. I would have them back anytime. Materials supplied look very good after installation by above. Only time will tell if they last the test of time.
Ian, Lanarkshire Posted on 10/06/2016 , work completed 10/06/2016
Professional and courteous
Customer Service
Quality
Value
Very efficient, good workmanship and tidy too.
Mary, Lanarkshire Posted on 25/03/2019 , work completed 25/03/2019
10 replacement windows , front 5 with laminated double glazing
Customer Service
Quality
Value
Russel from Southside windows measured up and gave us not the cheapest but competitive quote for the work. He was quick to point out possible issues and advantages of each type of window and their specifications. He got straight to the point, gave us a firm quote and the work started and finished on an agreed timescale. The fitters were respectful, and trustworthy (we left them alone on the property) and worked hard right through each day fitting one side of the property to reduce any inconvenience. The windows performance is as he said - reducing the road noise but not eliminating it totally. Russel (Southside windows ) tells you how it is, with no false promises. one minor issue was the sill heights were slightly higher, however, Southside windows paid to have new vertical blinds rather than realigning the already finished job. Overall good product, job done well and any issues resolved - no fuss what more could you reasonably expect.
John in East Renfrewshire Posted on 30/05/2022 , work completed 02/05/2022
First class
Customer Service
Quality
Value
From first visit I could tell I was dealing with a first class company, no hard sell, got quote quickly, was kept up to date with proceedings from them. The fitters arrived on said day and time, and their workmanship was excellent, did a good job cleaning up after them. Would not hesitate to use Southside windows windows again.
Customer in Glasgow City Posted on 16/04/2025 , work completed 16/04/2025
Excellent & professional
Customer Service
Quality
Value
Very pleased with new windows & the excellent work carried out by the staff. Very helpful in al aspects. Would recommend to others.
Kenneth, Lanarkshire Posted on 01/04/2015 , work completed 01/04/2015
Excellent window & fit
Customer Service
Quality
Value
2nd time used Southside Windows. Excellent quality sash & case windows. Superb fit by Owen & Graham. Owen makes a really nice job of interior finish.
Which? Trusted Traders Consumer Posted on 14/02/2017 , work completed 14/02/2017
Good windows and good customer service
Customer Service
Quality
Value
The tradesman was nice and did great work on the 2 windows we ordered. Unfortunately, he left a crack but he was honest about it and ordered a new one for me. Customer service was great and reassuring about the window and we got a replacement easily. Overall I would recommend due to the good work, honest and nice builder and great customer service.
Customer in North Lanarkshire Posted on 01/02/2021 , work completed 07/01/2021
Great service, high quality windows and doors. Highly recommended!
Customer Service
Quality
Value
Installed 10 new windows and 2 doors at our house. Russell very knowledgable, quick to quote and no hard sell. Not the cheapest but still competitive for the best windows and doors (Rehau and Palladio). Fitters arrived as scheduled and completed in just over 2 days all in. Polite hard working guys who left a high quality installation. Good communication with the office too. Can’t recommend highly enough.
Customer in East Renfrewshire Council Posted on 11/10/2022 , work completed 27/09/2022
Window replacements- great job
Customer Service
Quality
Value
We arranged to have several windows replaced and agreed the price. The installation went very well and the men were very good and careful. They also took time to demonstrate the mechanism and cleaned up after the work was completed.
Customer in South Lanarkshire Posted on 13/05/2024 , work completed 10/05/2024
Excellent job, very professional tradesmen
Customer Service
Quality
Value
Both tradesmen arrived in good time, they kept me informed throughout the day and carried out their work in a very professional manner. Once the work was complete, they ensured that any mess was cleaned up. The windows were fitted as well as can be expected. Excellent finish.
Ken, Lanarkshire Posted on 29/05/2018 , work completed 29/05/2018
Excellent service end to end
Customer Service
Quality
Value
Very prompt & kept us in the loop the whole journey. Tradesmen were fantastic, polite, hands on and even went to visit a neighbour to help with her door enquiry. 100% recommend.
Jennifer, Lanarkshire Posted on 26/10/2018 , work completed 26/10/2018
Excellent friendly service.
Customer Service
Quality
Value
I had an old window replaced by Southside Windows. The work has been done to a superb standard, leaving me delighted. Owen came promptly and worked away and was very friendly. All old fittings removed and house cleaned up. Highly recommended.
Craig, Lanarkshire Posted on 22/01/2019 , work completed 22/01/2019
Excellent job
Customer Service
Quality
Value
Great service. No nonsense quote given in 15 minutes. Fitters were great, clean, efficient, polite and great workmanship. Wouldn't hesitate to recommend.
Kenneth, Lanarkshire Posted on 21/11/2017 , work completed 21/11/2017
Great Service
Customer Service
Quality
Value
I was delighted by the work, workmen & product.
Peter, Lanarkshire Posted on 14/03/2018 , work completed 14/03/2018
Prompt and professional and helpful
Customer Service
Quality
Value
Fitted 2 doors and 2 windows to the agreed budget. Very flexible about schedule as I needed. Personable, reliable, honest and good technical advise for a non-standard fitting. No payment required until job done. Communication great. Recommend Owen!
Amanda, Lanarkshire Posted on 16/01/2019 , work completed 16/01/2019
Up to expectations
Customer Service
Quality
Value
Diligent workers, out of way to help keep place as tidy and clean as possible. Took only a 10 min break for lunch and tided the home as best they could and even offered to help put home back in order.
William, Lanarkshire Posted on 16/11/2018 , work completed 16/11/2018
Nice Finish
Customer Service
Quality
Value
Arrived on time. Tidy workers that cleaned up after themselves. Nice product and a nice finish.
James, Lanarkshire Posted on 22/05/2018 , work completed 22/05/2018
My review
Customer Service
Quality
Value
Good job, well executed, tidy.
Robert, Lanarkshire Posted on 23/10/2017 , work completed 23/10/2017
Prompt and very professional
Customer Service
Quality
Value
What could I say to express how much I really appreciated the professionalism and the promptness in which the work was done. Just brilliant. Keep up the good work.
Patricia, Lanarkshire Posted on 15/10/2018 , work completed 15/10/2018