Endorsed by Which?

Southside Window Systems Limited

4.9

303 Reviews

Opening Hours
Today - 07:30–16:30
  • 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

Why you can trust this trader

After undergoing rigorous assessment to become endorsed, every Which? Trusted Trader agrees to our Code of Conduct. This gives consumers the reassurance that they have the best possible protection and adds an extra layer of security to ensure best practices and procedures are followed. Which? fully investigates any breaches and will take any necessary action to ensure consumer protection.

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
303 reviews
Customer Service
5.0
Quality
5.0
Value
4.9
Sort by
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
Two Windows Replaced
Customer Service
Quality
Value
This is an amendment to previous review. Customer Service 5 Stars. If I could give more I would! Apologies, I am unable to amend my error on previous review. Excellent service from a professional local business. From the initial contact right through to the work being completed, we have been extremely impressed. Thank you for accommodating us for a small job of replacing two windows. The flexibility was much appreciated. David and his team completed this in a morning and even cleaned up afterwards. We are delighted with our new windows. We would thoroughly recommend this company. Customer in East Renfrewshire Posted on 17/03/2025 , work completed 06/03/2025
Customer in East Renfrewshire Posted on 24/03/2025 , work completed 06/03/2025
Two windows replaced
Customer Service
Quality
Value
Excellent service from a professional local business. From the initial contact right through to the work being completed, we have been extremely impressed. Thank you for accommodating us for a small job of replacing two windows. The flexibility was much appreciated. David and his team completed this in a morning and even cleaned up afterwards. We are delighted with our new windows. We would thoroughly recommend this company.
Customer in East Renfrewshire Posted on 17/03/2025 , work completed 06/03/2025
Highly recommended
Customer Service
Quality
Value
Brilliant service and definitely would recommend. The team was professional and friendly. Did an excellent job. We love our new windows. Thank you
Customer in Glasgow City Posted on 30/01/2025 , work completed 27/01/2025
Highly recommend
Customer Service
Quality
Value
A great professional job was done by the fitters cleaned up and owner Russell very good no hard sales talk just very honest. Would recommend them to anyone thinking about new doors or windows first class
Customer in East Renfrewshire Posted on 27/01/2025 , work completed 12/12/2024
Honest and truthful
Customer Service
Quality
Value
We contacted Southside Window seeking advice and a quotation for replacing windows in our semi-detached bungalow. Rusell arrived at the agreed time and after examining the existing windows told us that, while he would be happy to prepare a quote to replace our windows in his opinion the existing windows were in perfectly satisfactory condition and unless we wanted to completely change the style of window we should not spend large sums replacing "perfectly good windows". This honesty was greatly appreciated, so honest and truthful and a company you can trust.
Customer in South Lanarkshire Posted on 17/01/2025 , work completed 15/01/2025
Great service
Customer Service
Quality
Value
We had windows done in 2 rooms. Russell came out twice to ensure accurate measurement and quoting. The price quoted was exactly what we paid. The men who fitted the windows were exceptionally neat, and cleaned up after themselves to a higher than expected standard. They turned up on time early, and worked all, day for 2 days. On completion I noticed some scratches on one of the panes - this was immediately reported back to base by the fitter and a replacement pane fitted shortly after. The windows look superb. Great service all round.
Customer in East Renfrewshire Posted on 19/11/2024 , work completed 15/11/2024
Window Replacement
Customer Service
Quality
Value
We needed our Windows replaced and went to 4 contractors. Russell was very helpful in discussing our requirements in replacing the windows and not pushy like some others. I received the quotation the following morning with a full breakdown of the works discussed the previous night. Their cost was competitive , so we decided to secure the window replacement works with Southside Windows. Communication via email was first class. We were told that the installation would be in around 6-8 weeks once order was place. Works started 6 weeks after order was placed. The Installation period took 2/3 days. This incorporated the installation of 2 very large bay windows, 2 medium sized bay windows plus 2 kitchen & 1 bathroom window. Works were professionally done and the house was cleaned afterwards of any debris. I was very impressed with the works and you would never have known they had changed the windows. There was no requirement for any decoration works. We have noticed a huge difference in the warmth staying in the house, less noise pollution and no condensation inside of the windows. I would definitely recommend Southside Windows to my Friends & Family.
Customer in East Renfrewshire Posted on 06/11/2024 , work completed 09/10/2024
Came highly recommended, didn’t disappoint
Customer Service
Quality
Value
Came highly recommended. I was pleased with the no-nonsense approach by Russell, the owner, who gave me the quote without the hard sell. The workmen were professional throughout the installation, also considerate and friendly. Work was completed on time with very little disruption to myself. The workmen cleaned up inside and out. I’m pleased with the end result, the windows look great. Also really helpful were the staff in the office, Jackie kept me fully updated at all times. Would happily recommend to others.
Customer in Glasgow City Posted on 04/11/2024 , work completed 31/10/2024
New windows
Delighted with our new windows and door to our character home, very efficient and professional service throughout from sales, survey to fitting. Excellent value for a quality product, and job completed ahead of schedule, would highly recommend!
Customer in Posted on 28/10/2024 (Reviewer did not use service)