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Window Advice Centre Glasgow The Window Advice Centre service has been designed to help consumers avoid the many problems associated with the purchase and installation of double glazing.

The service makes buying double glazing or replacement windows simple, easy and safe, and, importantly, saves consumers a lot of time, effort and money in the process.

The service ensures that consumers get the best double glazing and the best replacement windows for their needs, properly installed for the best price available, with the protection of robust long-term insurance-backed guarantees. The service covers all window and door types and all materials including wood and upvc windows, wood and upvc doors, traditional sash windows, french doors and double glazed patio doors.
Served areas
  • Glasgow
Business details
  • Year established: 1981
Highlights and features
  • Independent and impartial double glazing advice since 1981
  • Free no-obligation surveys for local homeowners across Scotland
  • Retired architects and industry experts providing trusted guidance
  • Competitive quotations sourced from reputable local glazing companies
  • Comprehensive tender comparisons focused on quality and value
  • End-to-end support with inspections and insurance protection
Payment methods
  • Cash
  • Debit cards
  • Credit cards
Services
Services
Report
The Window Advice Centre service has been designed to help consumers avoid the many problems associated with the purchase and installation of double glazing.

The service makes buying double glazing or replacement windows simple, easy and safe, and, importantly, saves consumers a lot of time, effort and money in the process.

The service ensures that consumers get the best double glazing and the best replacement windows for their needs, properly installed for the best price available, with the protection of robust long-term insurance-backed guarantees. The service covers all window and door types and all materials including wood and upvc windows, wood and upvc doors, traditional sash windows, french doors and double glazed patio doors.
Recommended By Consumers As The Best Way To Buy Double Glazing in Glasgow & Throughout Scotland. Single visit from one impartial expert to get quotes from up to 10 quality approved replacement window contractors. Estimates for replacement windows or doors of varying quality and content making cost comparison difficult.
The Window Advice Centre service was designed to comprehensively resolve the many problems consumers experience when purchasing double glazing or replacement windows. Your Window Advice Centre consultant will arrange to visit you to discuss what you are looking to do and, importantly, develop a clear understanding of the benefits that you want to achieve.
Your Window Advice Centre consultant will go over your tender report to ensure that everything is to your complete satisfaction before anything moves forward. Approximately one week after your initial survey, your Consultant will return to you with your tender report. Your tender report will consist of a copy of the tender document, a list of the double glazing contractors and their itemised costs.
The Window Advice Centre service includes both insurance and close inspection to protect your interests and ensure that all work is carried out to specification. When you accept a replacement window contractor's offer through Window Advice Centre, you are automatically provided with an insurance policy that protects you from financial loss and ensures completion of the contract at the cost you agreed even if your selected contractor were to cease trading.The insurance also ensures continuity of your contractor's guarantee for ten years.
People
Kenneth Hislop
Double Glazing Company
The Window Advice Centre service has been designed to help consumers avoid the many problems associated with the purchase and installation of double glazing.

The service makes buying double glazing or replacement windows simple, easy and safe, and, importantly, saves consumers a lot of time, effort and money in the process.

The service ensures that consumers get the best double glazing and the best replacement windows for their needs, properly installed for the best price available, with the protection of robust long-term insurance-backed guarantees. The service covers all window and door types and all materials including wood and upvc windows, wood and upvc doors, traditional sash windows, french doors and double glazed patio doors.
Reviews (34)
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John M.
May 08, 2026
When it came to double glazing I knew pretty much nothing other than that several people I knew of had had less than positive experiences with pushy salespeople or poor workmanship over the years so I was wary.
Windows Advice Centre were recommended to me by a friend and proved to be very different to what I had imagined a double glazing company would be like in a good way.
George, the gentleman who I was put in touch with was professional and polite (which describes all of all of the staff I spoke to from WAC) and seemed to have an almost encyclopaedic knowledge of all things double glazing related. He turned up when he said he would, explained things in detail and kept an eye on things as they progressed.
And thats what sets WAC apart they manage the process with you. They listen, get the right sort of windows then get quotes for you from trusted companies (a huge relief to know the company you use has genuinely been one that has a great rep) and then come out to inspect the companys work after the windows are installed.
Overall a great experience and a company I can recommend.
Felicity Huntingford
Mar 04, 2026
I contacted the Windows Advice Centre about fitting double glazing in some complex windows in a listed victorian building. They explained the issues involved clearly and with authority, costed, planned and implemented the work extremely efficiently and, once it was completed, carried out thorough checks. The building firm chosen to carry out the work was also excellent, with everything proceding punctually and efficiently and with minimum fuss and mess. The finished windows look wonderful.
S.
Jan 11, 2026
I had a great experience with Windows Advice Centre from the initial consultation through to installation. George was professional, knowledgeable, and a pleasure to work with. He helped me choose the right windows for my home, answered all my questions clearly, and provided me with a spec document which Windows Advice then submitted to contractors.
They work with reputable companies which meant I could accept the lowest quote.

Installation day went smoothlythe crew arrived on time, worked efficiently, and left everything clean and tidy. The new windows look fantastic and have already made a noticeable difference in comfort and noise reduction. The quality of the work and materials really shows.

George returned once the job had been finished to inspect all the windows - any faults would have been immediately reported to the contractor.

I would highly recommend this company to anyone looking for high-quality windows and reliable service. Im extremely happy with the results and would not hesitate in using Windows Advice Centre again. Thankyou George!
Michael Tarr
Sep 21, 2025
Fantastic experience, so much better than dealing with pushing sales people in your homes for hours on end. Cheaper too!

Really helpful with planning permission, sorted out all for us at no cost.

Really great to have the follow up inspection. One of the windows needed a slight adjustment after installation but having that confirmed by the architect made it much easier to raise it and be sure everything else was correct. It was sorted within a week.

Highly recommend.
Marion Stuart
Aug 06, 2025
We recently bought a new house and needed to replace multiple (very large) windows. I was feeling nervous about asking for quotes because I was worried I would be taken advantage of since I know nothing about window installation or general requirements. I stumbled upon the Window Advice Center website on Google and decided to take a chance to see if they could help me and I'm so glad that I did. They were absolutely amazing from start to finish!

Following my initial email they sent someone to come take measurements and help me decide what it was I was looking for. He didn't try to sell me anything, just talked to me about my needs and then helped me understand the different options available on the market so that I could decide what I thought would work best for me. He explained all the pros and cons for each item we decided upon and answered questions at each step of the way. I felt so comfortable. He then left and wrote up a spec document which Window Advice submitted to contractors on my behalf.

Once the quotes came back I was able to pick a contractor and Window Advice helped me with all the paperwork.

When things didn't quite go to plan and the contractor hadn't contacted me by the agreed date to schedule an install, they stepped in and sorted everything for me.

One of the windows that was installed was cracked and needed to be replaced. The contractor was very apologetic and ordered a replacement immediately however when I received the invoice which stated I needed to pay within 7 days I wasn't sure whether I should pay it given that the job wasn't finished. I spoke with Window Advice on the phone and they helped me understand what to do and when to pay and they also followed up with the contractor to understand when my new window would be installed. I felt so relieved.

Finally, once the final window was fixed, they came out to inspect the window installation and made sure everything was up to spec and installed correctly. This made me feel so much more confident in my purchase!

Windows Advice did an absolutely amazing job from start to finish and I'm so grateful for their help. I highly recommend them to anyone who is uncertain about getting new windows because they make the whole process easy and smooth!

Thank you for your help!
John McLaren
Jul 19, 2021
A very poor overall service. Agreed a specification and they drew up a tender. This included very specific locks which were a higher quality and came at a premium. When the contractor fitted the doors the locks used were not to agreed specification. 8 weeks later, various attempts to ask Window advice centre to push contractors to change them to the ones agreed, nothing.

Barely a response from WAC, nothing from contractor Ace Windows. Once the Window Advice Centre have had their kickback from the contractor they're simply not interested, so unprofessional compared to what they claim. Either WAC or Ace Windows messed up and neither of them want to accept responsibility Would not recommend as they're simply not trustworthy
May S.
Dec 03, 2019
The consultant from the Window Advice Centre took all the hassle out of choosing a double glazing firm. His advice helped design the windows and doors and the company chosen to do the work was excellent. He then returned to check all was well. The deposit protection and product insurance also adds to peace of mind. This is the way to get your windows etc. fitted as you have an expert to guide your choices who works for you and gives excellent and impartial advice. I would highly recommend the Window Advice Centre.
Jean N.
Sep 05, 2019
We have just had our church Windows replaced on our 1960s building. We had excellent advice and service from our advisor. The company he chose for us was excellent. The cost of the Windows was a lot less than we expected them to be. He was with us from beginning to end even answered many questions throughout on the phone, even when he was on holiday. Our advisor came and gave us a very detailed account of the work to be carried out. We would highly recommend Windows advice to anyone planning on getting new windows.
Jean N.
Sep 05, 2019
We have just had our church Windows replaced on our 1960s building. We had excellent advice and service from our advisor. The company he chose for us was excellent . The cost of the Windows was a lot less than we expected them to be. He was with us from beginning to end even answered many questions throughout on the phone, even when he was on holiday. Our advisor came and gave us a very detailed account of the work to be carried out . We would highly recommend Windows advice to anyone planning on getting new windows.
Margaret Connolly
Jul 06, 2019
Excellent service. Expert advised and there was also follow up inspection. Helped with estimates. Free service. Delighted with our windows.
Margaret Connolly
Jul 06, 2019
Excellent service. Expert advised and there was also follow up inspection. Helped with estimates. Free service.
Delighted with our windows.
John Dennis
Jun 13, 2019
We were so relieved to find WAC and to meet Ken Hislop - saved our sanity and marriage! Choosing the relevant styles and sizes, specific fixtures and fittings and subsequently the best makers and fitters for us, was a trouble-free, relaxing and constructive process. On issues f we had not considered, Ken advised us patiently and with clear knowledge and expertise.

We emerged from the meeting confident and relieved! We were kept up to date with the search for appropriate window makers and the communication between all three parties was constant throughout. The windows are in, beautiful (as windows can be!) and we confidently and happily recommend the Window Advice Centre for their excellent service! Thank you.
Maurice B.
Feb 25, 2019
In Aug 18, we agreed to have 3 windows fitted by one of Window Advice Centre (WAC)recommended firms, installation being Jan 19. Two months later, I was contacted by WAC, stating that their material costs had since gone up and the firm now declined to proceed with the work - strange reason! WAC recommended an alternative firm that can still fit do it within the Jan and at the earlier agreed price.

In Feb 19, I received a letter, with a cheque for the deposit paid, stating no windows will be fitted since there's is parking restrictions outside the property. I was shocked to say the least. We and all other residents on that road continue to get our properties regularly maintained by various attending contractors, despite the parking restrictions - there is a way round it and this was discussed with the surveyor at the time. I can't believe the windows were cut/made but parking issues prevented their installation. I would give them a Zero star if there was such thing.
Charles F.
Jan 28, 2019
Absolutely delighted with the service I have received from the Window Advice Centre. I required new sash windows for my property in Bearsden - the advice on how uPVC sash windows and how they can replicate the period charter of traditional timber sash windows plus the durability, low maintenance and cost-effectiveness was most insightful. They was no sales pressure in anyway- only looking at what I actually require.

The process was great - they went away came back with detailed list of quotes and the price was over30% lower than some of the big named national companies. I am in no doubt that the quality will be substantially better than what these other so called market leaders would provide. Overall from start to finish it was a please to deal with the Window Advice Centre, buying made easy. Highly recommend to anyone looking for this service. thanks again
Charles F.
Jan 28, 2019
Absolutely delighted with the service I have received from the Window Advice Centre. I required new sash windows for my property in Bearsden - the advice on how uPVC sash windows and how they can replicate the period charter of traditional timber sash windows plus the durability, low maintenance and cost-effectiveness was most insightful. They was no sales pressure in anyway- only looking at what I actually require.

The process was great - they went away came back with detailed list of quotes and the price was over30% lower than some of the big named national companies. I am in no doubt that the quality will be substantially better than what these other so called market leaders would provide. Overall from start to finish it was a please to deal with the Window Advice Centre, buying made easy. Highly recommend to anyone looking for this service. Thanks again
Peter Yacoubian
Aug 24, 2018
Excellent service, fantastic value for money - would highly recommend this professional and friendly service which was provided with no pressure or commitment just sound advice. Effortlessly guided me through the process from initial design, product and contractor selection, successful installation and highly detailed independent inspection after the contractor had completed the work.

The product quality and standard of installation was excellent. The cost through Window Advice Centre was only 60% of what I was quoted when I contacted companies myself. Couldn't recommend highly enough!
Joseph Burt
Jun 01, 2018
I had a terrific experience with the Window Advice Centre architect (Ken Hislop) to guide me through the process of replacement windows and the options available for me. The Windows Advice Centre are a truly independent service to give folks the service and advice for replacing the right window for the right situation. Ken was a like minded conservationist and guided me through the process of sourcing the right windows and contractor for the replacement like-for-like windows in Glasgow's West End conservation area.

His knowledge and expertise really was impressive with the ability to translate complex architecture nomenclature to layman speak whilst keeping the balance of conservation and thermal effectiveness. I recommend the Windows Advice Centre and ask for Ken so the right advice and guidance can be sought whilst balancing conservation with modern needs of a warm property.
Pink Card
Mar 07, 2018
Our advisor helped us to make the best decisions from a range of options available in relation to the qualities and costs of replacement windows for a listed building. He also helped us select a contractor to manufacture and fit the windows and the contractor subsequently proved to be first class. I felt a bit daunted about the process as it represents a significant investment but Windows Advice Centre took the anxiety away by being reliable, giving clear explanations and written information and coming back to check the work once the windows were fitted. Very satisfied indeed.
Marky Gee
Dec 30, 2017
Simply fantastic. We had heard these guys were good and they delivered. Ken was polite, understanding and very professional. He listened to what we wanted and also gave us additional (no obligation) suggestions which we loved. He took the time to patiently help us design every window and door for our home but didn't take hours about it either and there was no hard sell.

He farmed the designs out to several glazing companies and advised us which one to choose (if we wanted). The contractors done an amazing job. Again, polite, professional and timely. Any issues that appeared during the install were openly discussed and dealt with quickly. After the job was complete, Ken visited again to inspect the quality and fit of the windows and doors. Overall, a smooth process from start to finish. I highly recommend using Window Advice Centre and cut out the need for half a dozen double glazing salesmen traipsing through your home.
Trent Kim
Jun 08, 2017
Windows Advice Centre helped us install badly needed new windows in our listed property. We had tried approaching a number of joinery and double glazing firms but found them all to be useless, basically, constantly wanting to cut corners. Windows Advice Centre were fantastic: we found them to be thorough, professional and they really took time to understand our needs.

Once we'd decided to proceed with them, they came back to us with different options, they researched permits, dealt with the planning permission applications, scaffolding firms, joiners and manufacturers. We are absolutely delighted with the end result and would recommend Windows Advice Centre to anyone (but especially those in listed properties or for projects where you need an independent expert, rather than a salesperson).
Robert Rennie
Oct 18, 2016
Having spent several hours looking into the multitude of variables involved in selecting high quality replacement windows and subsequently visiting the web sites of most of the big double glazing companies we decided that when it came to specifying new windows it was just too easy to make a mistake. We therefore decided to seek independent expert advice and found the Windows Advice Centre (WAC).

From the outset the WAC proved to be far more knowledgeable than I had expected and more importantly were able to communicate their expert advice in a very clear way providing answers and explanations whenever needed. Our windows have just been fitted this week and we could not be happier with them. While a large part of the credit should go to the contractors who manufactured and installed our new windows an equally large part of the credit goes to the WAC for specifying the windows and helping us find the right contractors. I would have no hesitation in recommending the WAC to others and in fact have already done so.
Angela Connolly
Dec 30, 2012
If you are looking to replace your windows and doors I would strongly recommend making use of the expertise of the Window Advice Centre. The service provided from consultation through installation and inspection was superb. Advice given was excellent. They took time to listen to what I was looking for and then ensured that my expectations were met.

I was presented with a range of quotes from contractors allowing me to select from very competitive rates. What could have been a time consuming and stressful process was made extremely simple. The consultant was both knowledgeable and helpful. His professional approach instilled 100% confidence in me that I had made the right decision when opting to use their service.
Robert Sommerville
Excellent service from Ken Hislop from initial visit to a detailed inspection of the work 1 day after completion. The only way to buy double glazing in my opinion as you don't need to put up with all the pushy sales talk from salesmen who are only interested in how much commission they will make.
Angela Connolly
If you are looking to replace your windows and doors I would strongly recommend making use of the expertise of the Window Advice Centre. The service provided from consultation through installation and inspection was superb. Advice given was excellent. They took time to listen to what I was looking for and then ensured that my expectations were met.I was presented with a range of quotes from contractors allowing me to select from very competitive rates.

What could have been a time consuming and stressful process was made extremely simple. The consultant was both knowledgeable and helpful. His professional approach instilled 100% confidence in me that I had made the right decision when opting to use their service.
Helen Sweeting
What a totally fantastic service - USE THESE GUYS!! Would give them 10 stars if I could. After despairing over our troublesome, leaky, failing windows in a wooden extension, built only a very few years ago AND having ordinary glaziers out to inspect and give gloomy suggestions, we now have beautifully made, top quality replacements. We received so much sensible advice from someone prepared to sit down and talk in great detail.

Following that, plans were drawn up and agreed, and a contractor chosen, who then did a good job. We would NEVER have managed this on our own, particularly finding a small glazing / joinery set-up, based over 50 miles away, prepared to build bespoke windows.
Robin Smith
What a great service, these guys really do give independent advice and peace of mind with regards to buying windows. There are so many choices and options with modern windows and I was able to talk them through in my home with a professional consultant architect from the window advice centre. My consultant has been highly Professional through out giving me confidence that I have made the right decisions.
Robert Rennie
Having spent several hours looking into the multitude of variables involved in selecting high quality replacement windows and subsequently visiting the web sites of most of the big double glazing companies we decided that when it came to specifying new windows it was just too easy to make a mistake. We therefore decided to seek independent expert advice and found the Windows Advice Centre (WAC).

From the outset the WAC proved to be far more knowledgeable than I had expected and more importantly were able to communicate their expert advice in a very clear way providing answers and explanations whenever needed. Our windows have just been fitted this week and we could not be happier with them. While a large part of the credit should go to the contractors who manufactured and installed our new windows an equally large part of the credit goes to the WAC for specifying the windows and helping us find the right contractors. I would have no hesitation in recommending the WAC to others and in fact have already done so.
Stewart Alleyne
We contacted WAC after reading the glowing reviews online and Ken came out to the house to meet us, inspect existing windows and take the time to explain different types, quality and rough prices of options. With Ken's help we were able to make a decision on what we wanted at a price that would put some of the large windows sales companies to shame.

The money we saved by having an expert essentially act on our behalf allowing us to make informed decisions more than paid for the WAC service; total cost came in at about 40% less than we had expected for sliding sash.

Ken came out and inspected the works at completion in order to sign-off before we paid the balance. Highly recommended!
Ian Grout
If your windows matter to you and you are replacing them then the first thing you should do is go and talk to Windows Advice Centre. They clearly talked through all the options available to us in considerable detail. We live in a conservation area so needed to get it right. Our house has 4 round top sliding sash windows and they have replaced them successfully, indeed beautifully.

There were some tricky details to work out between the manufacturers, the installers and ourselves (we are very picky) and this was done with consideration and patience and at no time did we feel under pressure to accept anything other than the best for our house. We sit in our home now looking at lovely windows and are very happy. Thank you.
Pamela Bonar
Windows advice centre gave excellent service. There was no sales pressure and we were free to decide if and when we would go ahead. The work was carried out quickly and efficiently. They took all the pressure out of obtaining the planning permission for us. Installation now complete and we are delighted with the end result.
Alison Drever
I cannot recommend the Window Advice Centre highly enough. We needed windows for pretty much the whole house and the Centre made it so easy.The expertise and quality of independent advice in the window world is invaluable! We were also delighted at the quotes we received which were significantly cheaper than we had anticipated. A fabulous service that I would very highly recommend.
Marky Gee
Simply fantastic. We had heard these guys were good and they delivered. Ken was polite, understanding and very professional. He listened to what we wanted and also gave us additional (no obligation) suggestions which we loved. He took the time to patiently help us design every window and door for our home but didn't take hours about it either and there was no hard sell.

He farmed the designs out to several glazing companies and advised us which one to choose (if we wanted). The contractors done an amazing job. Again, polite, professional and timely. Any issues that appeared during the install were openly discussed and dealt with quickly. After the job was complete, Ken visited again to inspect the quality and fit of the windows and doors. Overall, a smooth process from start to finish. I highly recommend using Window Advice Centre and cut out the need for half a dozen double glazing salesmen traipsing through your home.
David Craft
New sash windows arranged through the window advice centre for property in Bearsden. the advice and assistance was second to none and quality of workmanship is superb- highly recommend
Harry Allan
Fantastic service and most helpful. living in conservation area I had to be careful that the replacement windows were correct - window advice centre gave excellent advice and were able to source quotes which were 30% cheaper than national companies and I would safely say better quality products. delighted and highly recommend.