The Advanced Group Reviews 1,604

TrustScore 4.5 out of 5

4.6

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Review summary

Created with AI, based on recent reviews

Looking at 47 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the staff for their helpfulness and positive attitude, making interactions pleasant and productive. The service provided is often described as excellent, with many people appreciating the efficiency and ease of their overall experience, from initial inquiry to installation. Reviewers are particularly impressed with the high quality of the products, such as windows and doors, and the outstanding workmanship of the installation teams. However, some customers also noted issues with customer service, citing poor communication, careless installation work, and non-existent aftercare. These reviewers described problems such as incorrect installations, damaged property during fitting, and delays in completing jobs, leading to dissatisfaction with the final outcome.

What people talk about most

Staff

Clients share positive opinions on staff, consistently describing them as professional, helpful, and... See more

Service

People report positive experiences with service, often highlighting the professionalism and efficiency of the... See more

Product

Customers had positive experiences with product, with many expressing delight and satisfaction with their new... See more

Quality

Reviewers mention positive feedback about quality, with many customers expressing satisfaction with the high... See more

Customer service

Customers consistently note ambiguous experiences with customer service, with some reviewers praising the... See more

Reviews shaping this summary

Rated 5 out of 5 stars

Delighted with our new triple glazed bay windows. John & Paul did a stellar job replacing the old single glazed ones. Also very good communication throughout the process with Nicola, who secured us a... See more

Company replied

Rated 5 out of 5 stars

Just had all our windows and doors replaced and can’t rate this company highly enough. From visiting the showroom in East Kilbride and speaking to James who gave us great service and advice to the 2 f... See more

Rated 5 out of 5 stars

Just had new door installed. Service has been superb from the moment we made an enquiry. Within 24 hours, Nicola had made contact and provided us with an informal quote, confirming our choices before... See more

Rated 5 out of 5 stars

From start to finish excellent service Derek the salesman was so patient and certainly knew his stuff. Both installers John and Andrew worked their socks off not even stopping for tea!! Really tidy w... See more


Company details

  1. Window Installation Service

Written by the company

At the Advanced Group Glasgow all of our uPVC double glazing windows are individually built to order, bespoke tailored for your home and come in a variety of styles and colour options. We can offer Casement Windows, Sash Windows, Bay Windows and Tilt & Turn Windows. White is our most popular colour. However, we can accommodate any coloured uPVC windows, including Woodgrain and Oak effect. 4 Reasons to Choose The Advanced Group for double glazing: 0% deposit finance packages 15 year guarantee 34 Years of experience Scotland choice Triple Glazing supplier The Advanced Group are based primarily in Glasgow, but have been perfectly fitting Scotland with quality UPVC Products for 34 years. Our Price Guarantee: We guarantee that we are providing the best Double & Triple Glazed UPVC windows, doors and replacement conservatories at no additional cost to our customers and with our excellent 0% deposit finance packages it's even more affordable.


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

2K reviews

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Rated 5 out of 5 stars

Paul and John were here for 2 days…

Paul and John were here for 2 days fitting 5 windows and a front door. They were totally professional in everything they did. Their work was completed to a very high standard and they left our house immaculately clean on both days. Would highly recommend these guys to all our friends and family. 10 out of 10. 👌

May 22, 2026
Unprompted review
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Rated 5 out of 5 stars

Well where do I start what can I say…

Well where do I start what can I say about amazing two guys who came to my house this week to replace my windows Paul n John from the moment the drove up on mondayv4 th May till they finished on Wednesday 6th best workmen I've ever had never stopped from the moment they arrived and till the left my windows and doors are amazing they really worked hard and so friendly a true credit to your company there workmanship is amazing and left my house with no rubbish hope you enjoyed your Gregg's boys and hope you both have a lovely summer well done Advanced keep hold off these two I will highly recommend your company for service and workmanship thank you boys Gwen Paul and your pals the cats lol xxx

May 6, 2026
Unprompted review
Rated 1 out of 5 stars

Used them a few times-but……

Used them a few times, however, got my water infected French doors replaced in2023.
Had to get them back 7 weeks ago as a gap in between the doors allowed water in and damaged my floor. TBF the guy who came out and repaired was sound and happy with what he found and repaired, but not a thing from the office about the damage done to my floor, which has not got any worse since the repair. Buying a new house soon and won’t be using Advanced for the new windows and sun lounge for it. Always comes back when customer service ain’t good I am afraid.

Uodate*

Reply to my experience!

I have photos too. 5mm (appx), gap. Due to the sun shining into the shot, your excellent engineer could not get a photo for himself. As no further damage to my Karndean flooring after his visit, about 7 weeks ago,then yes, I would suggest the gap has caused the damage. I am not getting into a s—t fight just won’t use you again. The job and replaced item were under warranty anyway so no browny points for fixing..

February 26, 2026
Unprompted review
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Reply from The Advanced Group

Good afternoon,

We’re sorry to see your review!

Having called in on a Monday afternoon, we arranged for an engineer to attend on Thursday of that week, and the issue with the door was inspected and resolved at that visit, including adjustment and replacement of a broken component.

At the time of inspection, no visible defect or gap was found that would reasonably account for water ingress through the door, and photos/video were taken prior to any work being carried out.

While we understand your concerns regarding internal flooring, we do not install or accept liability for floor coverings, and there was no clear evidence linking the issue to a fault with the door itself.

Kind regards,



Gordon

Rated 5 out of 5 stars

We had a great experience with Advanced…

We had a great experience with Advanced Group. The work was completed to a very high standard, and the team were professional and reliable throughout. Would happily recommend them to others.

February 16, 2026
Unprompted review
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Reply from The Advanced Group

Hi Helen,

I am glad to hear our team got on well with you and thank you for taking the time to review!

Kind regards,


Gordon

Rated 5 out of 5 stars

A pleasant experience

Efficient service made the whole experience from ordering to installation a pleasant experience. The installers completed their work in a single morning. I was particularly impressed by the security provided by the Ultion lock. I would recommend this company.

April 10, 2026
Unprompted review
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Reply from The Advanced Group

Hi John

I am glad to hear our team got on well with you and thank you for taking the time to review!

Kind regards,


Gordon

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Rated 1 out of 5 stars

Placed an order in January

Called in January about a replacement door!
Week later I was told they misquoted me on the original interaction due to our location.
I accepted this and agreed the new quote in February. I then had no calls back until 3 of April to get a survey done from them. (2 months later)
By this time I have had another company round had a quote and ordered the door!
Poor service even before an order was placed!

April 3, 2026
Unprompted review
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Reply from The Advanced Group

Good afternoon Mr Forrest,

Please accept my apologies for this - I would like to thank you for bringing it to our attention and I would be grateful if you could give me a call on 01355 266 889 as I would like to investigate further and ensure this is an isolated incident that is not allowed to repeat. I would also like to pass along my own apologies to yourself.

Kind regards,


Gordon

Rated 5 out of 5 stars

James (Sales Executive) Paul & John(Installers)

Paul & John(Installers)….and James(Sales Executive). We had all windows replaced. We had 5 quotes. James was friendly and helpful and honest with us `and gave good and respectful advice and invited us to the showroom - we were pleased to pop up and see the range of windows and doors -this helped us decide on this company, all quality products. James, thank you. Paul & James worked non stop over 2 days. Removed old and installed new windows, No damage and no mess whatsoever. They prepared the areas, covering carpets and furniture and just got on with it. We would have no hesitation recommending this company, and these two installers. Such nice guys, who know how to work hard and give customer satisfaction. Well done Advanced Group, but more-so, well done James, Paul & John.

March 27, 2026
Unprompted review
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Reply from The Advanced Group

Hi Mitch,

I am glad to hear our team got on well with you and thank you for taking the time to review!

Kind regards,


Gordon

Rated 5 out of 5 stars

New Windows and Door Troon

First class service from start to finish.Installers Stephen and Donald were amazing.Extremely professional friendly and courteous and windows look amazing.Gordon was also excellent and attended to all my requirements very timeously.Highly recommend Advanced Group and 15 year Guarantee is excellent.

February 26, 2026
Unprompted review
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Reply from The Advanced Group

Hi George,

Thanks for taking the time to review and I am glad we were able to assist.

Kind regards,



Gordon

Rated 5 out of 5 stars

Excellent

This company has to be the best in the business and below i will detail why.

1st. The sales guy was very knowledgeable at no time did he try to push me into buying and helped me pick the correct product although he did cancel 30 minutes before first visit but he did come the following day as promised. ( sorry can’t remember his name)

2nd Survey guy. He came was really professional suggested a couple of minor changes.

3rd installation The two men arrived promptly when they said they would and got to work right away, they protected my flooring and worked away like little beavers. The attention to detail with these two are second to none and a real credit to the company. So Paul and John thank you, you’re both great at your job and your attitude is absolutely amazing.

4 plaster. Needed a little remedial work done on the outside and yet again 2 competent worker’s appeared. Im in the belief that this company only employs cheerful and hardworking people.

As for the windows they are stunning and well made, hopefully there won’t be any problems but if there is im sure the company will sort it without hesitation.

In conclusion if you are looking for a company to do your windows and doors look no further not only do they do a good job they have the most amazing people who work for them, also its the only company I know that guarantees their products for 15 years.

We will be getting them back in a few months for doors

February 26, 2026
Unprompted review
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Reply from The Advanced Group

Good morning,

Thank you for taking the time to leave such a lovely review.

I will be certain to pass along your kind words to all involved.

Kind regards,


Gordon

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Rated 5 out of 5 stars

Advanced Group have been a fantastic…

Advanced Group have been a fantastic company to deal with from start to finish.

Special thanks to the fitters Paul and John for being polite, friendly and professional and arrived on time each day and left the place absolutely spotless and outstanding workmanship.

The whole experience from all the staff at the Advanced Group has been very professional.

March 6, 2026
Unprompted review
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Reply from The Advanced Group

Good afternoon Kenneth,

Thanks for taking the time to leave a review - I am glad to hear Paul and John got on so well with you.

Kind regards,



Gordon

Rated 5 out of 5 stars

Excellent service

Absolutely delighted with our new windows and doors. The whole process was smooth from start to finish. James was fantastic, providing us with a very competitive quote with absolutely no pressure to buy, unlike other companies we had contacted.

Mark came within a couple of days to measure up and make sure all the finer details were correct. Installation day was 3 weeks later and scheduled to take 3 days. Paul and John, our fitters were amazing. They arrived as planned and informed us of their plan to get everything fitted with the timeframe. They covered our floors, radiators and furniture to protect them, and when they finished for the day everything was left spotless, it was as if they had never been here.

The final finish is amazing and has transformed our home. The service we received has been second to none and was totally stress free. I can not rate Advanced Windows highly enough.

A big thank you to James, Mark, Paul and John for your excellent service and positive experience.

March 4, 2026
Unprompted review
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Reply from The Advanced Group

Hi Sandra,

Thank you for taking the time to leave such a lovely review and I am so glad that all of our team were able to assist so thoroughly.

I will pass along your kind words to all involved.

Kind regards,



Gordon

Rated 5 out of 5 stars

Excellent product and service

Delighted with our new triple glazed bay windows. John & Paul did a stellar job replacing the old single glazed ones. Also very good communication throughout the process with Nicola, who secured us a competitively priced product and helped every step along the way. Very happy with the complimentary plaster touch up service from Scott too, and pleasant dealings with Gordon regarding finance. I highly recommend this company and if we need more glazing done on the house, they'll be the first point of call for us. A very satisfied customer.

February 16, 2026
Unprompted review
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Reply from The Advanced Group

Hi John,

Thank you for taking the time to leave a review!

Kind regards,


Gordon

Rated 5 out of 5 stars

Door

Door fitted recently by David and Hammy and it looks great. Guys left no mess. Thank you!

January 13, 2026
Unprompted review
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Reply from The Advanced Group

Good afternoon Callum,

Thank you for taking the time to leave a review. I am glad that you are happy with your door.. I will pass along your kind words about the service received to our fitters David and Hammy

Kind regards,
Gordon

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Rated 3 out of 5 stars

On completion of contract in Nov 2025

On completion of contract in Nov 2025
Received phone call with installation date 12 th January 2026 Time 9.00am/10.00am
On 12th January no show for time installation,no contact from advance .After 3,phone calls to advance.,they stated installers gone to another job
Very poor customer communication
Not recommended

January 12, 2026
Unprompted review
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Reply from The Advanced Group

Good morning,

Please accept my apologies for this - I believe the team had two jobs on that day and mixed up the order, arriving to yourself at 11:30am instead of the estimated 9-10am

Kind regards,



Gordon

Rated 5 out of 5 stars

Outstanding Service and Quality from Start to Finish

We recently had new windows and a bifold door installed by Advanced Windows, and we couldn’t be happier with the whole experience.

From the very start, James, our sales representative, was absolutely fantastic. There was no pressure to buy, unlike other companies we’d spoken to who tried to push us into signing on the spot. Instead, James invited us to visit the showroom at a time that suited us, where we could take our time viewing the products and exploring all the options available.

We had a particular look in mind, and during our visit to the warehouse with James, we found exactly what we wanted. The whole process felt relaxed, honest, and professional, so we decided to go ahead. The turnaround time was excellent, less than three weeks from order to installation.

When the installation day arrived, John and Kieran, the fitters, turned up exactly as planned. Before starting any work, they introduced themselves and took great care to protect our home, covering furniture and flooring, and applying carpet film wherever they would be walking.
Throughout the installation, their attention to detail, politeness, and respect for our home were exceptional.

The job took three days, and at the end of each day the team tidied up thoroughly, leaving everything spotless. The final result is simply amazing, the new windows and bifold door look outstanding.

We used to have to put masking tape around our old windows in winter to stop the draughts, but now the difference is instant and incredible.

We’ve even had neighbours stop by to compliment how good everything looks, and people have slowed down outside to take photos!

Overall, the service from start to finish has been outstanding, and we can’t recommend Advanced Windows highly enough.

A huge thank you to James, John, and Kieran for making the whole experience so positive and stress-free. Service and Quality from Start to Finish

October 9, 2025
Unprompted review
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Reply from The Advanced Group

Hi Brian,

Thank you for taking the time to leave such great review.

I am so glad that James in Sales was able to discuss all your design needs and our installers John and Kieran were able to deliver the service required to make the vision a reality.

Kind regards,



Gordon

Rated 5 out of 5 stars

I had windows/door installed.

I had windows/door installed a couple of years ago and they are still doing their job! Sales guy was brilliant and when I had a small issue there were no questions, they just came out and fixed it. Would absolutely recommend Adavance.

December 27, 2025
Unprompted review
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Reply from The Advanced Group

Good afternoon,

Thank you for taking the time to leave a review - I am glad our sales and customer care team were able to assist you, If we can ever be of further assistance, please don't hesitate to get in touch.

Kind regards,


Gordon
Installations

Rated 5 out of 5 stars

Just fitted a door and integral…

Just fitted a door and integral sidelight for a client in Fort William.
Size: spot on
Quality: spot on
Lead time: impressive.
I will definitely be in contact for more doors and windows in the near future.

December 14, 2025
Unprompted review
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Reply from The Advanced Group

Hi Stuart,

Thanks for taking the time to leave a review - glad to hear that you are happy with our product and service and we look forward to assisting in the future.

Kind regards,


Gordon
Installations

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Rated 5 out of 5 stars

Had our French doors fitted by Advanced…

Had our French doors fitted by Advanced and from start to finish everything was excellent. Wullie did the installation for us and when he left you never would've even known he'd been there... so tidy and professional. Had to phone up to get the doors adjusted slightly and Debbie in customer care was brilliant and sorted everything for us. Highly recommend

November 11, 2025
Unprompted review
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Reply from The Advanced Group

Good afternoon Georgia,

Thank you for your review.

I am so glad that Wullie and Debbie were able to assist so well during and after your french door installation.

I will pass along your kind words.

Kind regards,



Gordon

Rated 5 out of 5 stars

Paul & John are great workers

Paul & John are great workers, were neat and tidy, very pleasant and helpful, and done a cracking job.

Have used them before and would use them again. Highly recommended.

December 12, 2025
Unprompted review
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Reply from The Advanced Group

Good afternoon Mr Halliburton,

Thanks for taking the time to leave a review and for your kind words.

I will pass along your praise to the team.

Kind regards,


Gordon

Rated 5 out of 5 stars

After sales service

Bought windows for the front of my house 3 years ago and was very happy with them, they developed a fault on the window sills and I called to have them rectified it couldn't have been easier 1 call and an email to the company with pictures and absolutely no problem getting them fixed, 1 week later as expert fitter was at my house repairing them, after sales service was second to none and I will be getting an estimate to replace all the windows at the back when I can afford them 👍🏿

December 4, 2025
Unprompted review
The Advanced Group logo

Reply from The Advanced Group

Hi Tim,

Thanks for taking the time to review.

I am glad our customer care team was able to assist.

Don't hesitate to contact us if we can be of further assistance.

Kind regards,



Gordon

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