Endorsed by Which?

Alex Dobson Windows & Doors Ltd

5.0

100 Reviews

Opening Hours
Today - 08:00–18:00
  • Monday 08:00–18:00
  • Tuesday 08:00–18:00
  • Wednesday 08:00–18:00
  • Thursday 08:00–18:00
  • Friday 08:00–18:00
  • Saturday 08:00–18:00
  • 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.

Organisations and Awards

May 2020

About

Based in Knaphill, Surrey, we are a local, friendly company with over 25 years’ experience in windows and doors, from double glazing to composite and bi-folding doors.

As a local company, we take great pride in the work we carry out through the area. Attention to detail and high standards are paramount to our work, and result in customer satisfaction in everything we do. Much of our work comes from recommendation and repeat business, which speaks to our high standards.

Our tradesmen are fully trained and qualified in both traditional methods and the latest techniques, so you can rely on the quality of our work.

For more information, or to discuss your requirements, contact us today.

What we do

  • Glaziers

    • Replacement window services and repairs
    • Double glazing installation
    • Sash windows
    • Aluminium Windows
    • Double glazed units
    • Double glazing repair
    • Triple Glazing
    • UPVC Windows
  • Double glazing

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

    • Bi-fold doors
    • Patio doors
    • Composite doors
    • Front door
    • UPVC doors
  • More Services

    • upvc sliding sash windows

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.

5.0
100 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
Sort by
New door fitted
Customer Service
Quality
Value
Alex and his colleague recently fitted our new front door and I am so happy with the whole procedure. The quote we were given was very reasonable. I also had a few questions that Alex answered without hesitation. On the day of installation Alex arrived on time and got straight to work. The process was stress free and very professional. I would certainly recommend Alex and his company and will use him again in the future.
Customer in Greater London Posted on 19/06/2022 , work completed 15/06/2022
Supplied and installed new backdoor.
Customer Service
Quality
Value
Alex and his team supplied and installed a new back door. They were very efficient and the quality of workmanship was excellent. I would highly recommend them.
Customer in Berkshire Posted on 04/04/2024 , work completed 04/04/2024
REPLACED FRONT DOOR
Customer Service
Quality
Value
This is the second time we've engaged Alex. The first time was to replace blown double glazing, this time to replace our front door, both times the work was carried out to a very high standard and my wife and I are very pleased with the results of the professional work carried out by Alex and his men
Customer in Surrey Posted on 01/09/2025 , work completed 01/09/2025
A job well done
Customer Service
Quality
Value
Alex and his team supplied and fitted a new period style front door and side windows on this occasion. The result has transformed the look of the house at the front and created a warm and homely hallway. I have used Alex before when he and his team replaced all 17 windows including two large bay windows. A big job. In both jobs, from start to finish, Alex was professional, knowledgeable and friendly. The product quality is first class, the prices are competitive and Alex makes everything clear from start to finish. The team are very clean and everything is removed and taken away efficiently when the job has been completed. I strongly recommend using Alex Dobson. You’ll find in Alex reliability, excellent customer service and great solutions.
Customer in Surrey Posted on 12/04/2023 , work completed 11/04/2023
Thoroughly Recommend
Customer Service
Quality
Value
Alex has done 4 jobs for me and on my recommendation 3 for a friend of mine. We have both been very happy with his service, from competitive quote through to prompt and tidy installation. We have had no complaints when he and his crew have worked in our house as they are very courteous and tidy.
Customer in Surrey Posted on 05/09/2024 , work completed 03/09/2024
Brilliant Window Replacement
Customer Service
Quality
Value
This is the second time I have used Alex and his team because I had such a good experience the first time when they replaced my large kitchen window and back door. They have now replaced every window in my house and I am absolutely delighted with the results. Alex and his team were always prompt, worked diligently and went above and beyond the norm to ensure that the end result was everything I could have wished. I don't use the word craftsmen lightly, but I can do so in this case because of their meticulous work. I have absolutely no hesitation in recommending Alex and his team if you are looking for the best.
Customer in Surrey Posted on 31/07/2024 , work completed 31/07/2024
Reliable Tradesman
Customer Service
Quality
Value
A stone, catapulted from the lawn mower, completely smashed the fixed window of our patio door. We obtained a few quotations from local companies, including the firm which initially had installed the patio door, which turned out to be the most expensive. The quote from Alex Dobson Windows and Doors Ltd seemed reasonable and we are pleased to have chosen this firm. Mr Dobson arrived on time and carried out the job quickly and professionally. He also attended to some other windows which required re-balancing. Again he remediated the problem competently. Overall, he carried out all the jobs to our complete satisfaction and we are very happy with the service we received. We certainly would use this company again and can highly recommend it.
Gabriele Kapfer-Gill Posted on 11/12/2017 , work completed 11/12/2017
A great job !
Customer Service
Quality
Value
I had a new composite front door fitted and from quote to fit the whole experience with Alex has been very professional. I am very pleased with the end result and would thoroughly recommend his services - thank you !
Pjennings99 Posted on 02/07/2018 , work completed 02/07/2018
Fantastic attention to detail, willingness to be flexible, friendly nature and exceptionally high standard of work
Customer Service
Quality
Value
We asked Alex to replace a square bay window, hallway window and front door. From our initial meeting, he was friendly, helpful and flexible. We already had our sights set on a particular brand of window and Alex was able to accommodate. For the door, Alex made recommendations and clearly explained the pros / cons of each option. Once we had made a decision, Alex and James were able to start work much quicker than I had expected. They were friendly, tidy and completed the work to an exceptionally high standard. What really struck me was the attention to detail; spotting and rectifying any imperfections without needing to be asked. I can be quite particular, so this was something I valued immensely. If I spotted something, Alex never made me feel like I was being picky or unreasonable (as I have felt with some tradespeople!) and was quick to offer solutions. Other little things, like the use of 4 or 5 different kinds of sealant to ensure the best finish, discreet plastic trim (instead of the large trims some fitters use), the care taken to get perfect mitres on the window board, to name just a few, speak volumes of the pride that Alex and James take in their work. Since having the windows and door fitted, they have been admired by many visitors; one was so stunned by the quality of workmanship that they started to doubt their own choice of fitter! I look forward to inviting Alex & James back to replace the other windows. I would unreservedly recommend AD Windows & Doors.
Mark Tudor Posted on 15/09/2018 , work completed 15/09/2018
Excellent
Customer Service
Quality
Value
I had a unit of windows and French doors replaced. Good start as there are no pushy salesman to deal with. When quoting Mr Dobson made practical and sensible suggestions about how to deal with the tumble dryer vent and sink drain and changing the layout of the unit from the original. He was clear about when the work could be done and gave me ample notice of his starting date. Quote was a good price. He and his colleague turned up on time; they were quick and tidy workers; paid attention to detail; and cleared up well when they'd finished. The unit itself is well made and solid. I cannot recommend the firm highly enough - a pleasure to do business with.
Fiona Seymour Posted on 14/05/2018 , work completed 14/05/2018
High standard work to schedule and at a competitive price
Customer Service
Quality
Value
The team turned up on time (early actually) and delivered high quality work putting in two doors in a morning. They tidied up all the mess and ensured I was happy with the quality of the work before they left. I would not hesitate to recommend this company. Their price was very competitive and they are a local company.
Customer in Surrey Posted on 02/03/2019 , work completed 02/03/2019
Good job
Customer Service
Quality
Value
Alex arrived on time and did a fine job and left the site neat and tidy. The work was completed in a few hours and was on budget.
Customer in Surrey Posted on 04/09/2019 , work completed 04/09/2019
Good job done
Customer Service
Quality
Value
Patio door and lounge window replaced, job finished in one day, site left clean and tidy. The work was carried out to a high standard, price was as estimate, good job and done well!
Customer in Surrey Posted on 23/02/2020 , work completed 18/02/2020
Job well done
Customer Service
Quality
Value
Alex fitted a new door and two new windows for me. He was helpful and professional from start to finish, responding to my enquiry promptly, arranging to come round to estimate at a convenient time, and completing the work to a high standard. Happy to recommend him.
Customer in Surrey Posted on 04/12/2020 , work completed 03/12/2020
Excellent service all round
Customer Service
Quality
Value
We have had all the windows in our house replaced, the work completed in two batches. Both times I have been very impressed with the quality of windows themselves, the professional and very efficient installation and the very competitive quote. They left the house clean and tidy and the finish on the windows is immaculate. I have already recommended them to a family member and they were also very impressed with their windows and doors, and installation as well. I would thoroughly recommend Alex Dobson Windows & Doors.
Customer in Surrey Posted on 28/01/2021 , work completed 28/01/2021
Great job
Customer Service
Quality
Value
Alex and team were prompt,clean and tidy. Did a great job have no hesitation in recommending them. Great job!
Customer in Surrey Posted on 07/07/2022 , work completed 07/07/2022
leaded light window
Customer Service
Quality
Value
Installation of a new three-pane leaded light window. The workmen were very polite, and cleared up after the work was finished. Very pleased. This is the second time we have used this company.
Customer in Surrey Posted on 03/07/2023 , work completed 28/06/2023
Supply and fit composite front door
Customer Service
Quality
Value
Alex replied to our request for details of composite front doors, costs etc. he measured up and took all the details required. He came back after the door had been delivered and fitted it. Very happy with the service, polite and tidy team. Would highly recomend.
Customer in Berkshire Posted on 18/07/2023 , work completed 18/07/2023
Excellent workmanship
Customer Service
Quality
Value
I had all my windows & patio door replaced. Alex and his team arrived on time for the 3 days it took to complete the job. They were quick in installing but very tidy, clean and respectful of the property. At the end of the day (after they left) one would not know that I had windows replaced. I highly recommend them.
Customer in Surrey Posted on 07/08/2023 , work completed 04/08/2023
New Front Door
Customer Service
Quality
Value
Our new Endurance front door was recently supplied and installed by Alex Dobson. Alex helped us specify the door, gave us a competitive price and carried out the work on schedule leaving everything clean and tidy. We're delighted with the result and must give full marks to Alex for a fine job.
Customer in Surrey Posted on 03/11/2023 , work completed 14/10/2023
Two new door and window combinations one of which needed the opening forming
Customer Service
Quality
Value
It would be nice if all projects went as well as this one. Alex and his team arrived the day they said they would, at the time they arranged. They were carful in protecting areas around their workspace and cleared all rubbish as they went along. The fitting of the doors is superb and every thing was clean and tidy on completion. All the team were pleasant and helpful. Not sure what else I can say!!!! Great
Customer in Surrey Posted on 07/02/2024 , work completed 07/02/2024
Fantastic work from a great, friendly and professional team.
Customer Service
Quality
Value
Alex provided and installed a complete house replacement of all our windows and doors. The work was outstanding. Communication from the start was always prompt and very helpful. Having had several quotes for this work I can categorically say he was very competitive in his pricing and we were very pleased with the professionalism of his and his teams work throughout the process. Alex gave a time scale for the work to be done and was carried out to schedule. The property was always left clean and tidy at the end of their work day. We would be very happy to use Alex and his team again and have no hesitation in recommending him. The whole process was very easy. They were a pleasure to have around, hard working, friendly and considerate of our home. We did have a very minor problem with a patio door that was resolved within 2 days of communicating with him. Excellent. A really great team.
Customer in Surrey Posted on 31/05/2024 , work completed 29/04/2024
Recommended
Customer Service
Quality
Value
Had previously approached other people to undertake a number of jobs to secure windows and doors. The fIrst was only interested in selling security devices and the second created more problems than he solved. Called in Alex on my daughter’s recommendation. Alex recommended some sensible and cost effective solutions to a number of problems including installing a new door. The work was completed on schedule by Alex and his team and they cleared up thoroughly on completion.
Customer in Berkshire Posted on 25/03/2025 , work completed 07/03/2025
Excellent work
Customer Service
Quality
Value
Excellent service provided by Alan and his team. We needed quick turnaround for a new slide door. Alan was speedy, professional and highly efficient throughout. Cost was accurate and value for money given the high standard of workman ship and professionalism given to the job. Highly recommend and I will definitely use again!
(your username) Posted on 10/02/2025 , work completed 31/01/2025
5* Service from start to finish!
Customer Service
Quality
Value
Alex was extremely professional, kind and courteous throughout the whole process. From the initial survey, he took time and care to explain everything in detail and was patient in explaining how windows and door differ. We had 16 windows, a utility room door and front door with Alex. He allowed us to send pictures of windows and doors we liked and he then matched them for us. His team always arrived before the given time and were methodical with their approach to what needed to be completed. They honestly highlighted any snags and were quick to fix any problems that were not their fault. Alex was always available via call or text throughout the process. Highly recommended and we were extremely happy to use a local tradesman.
Customer in Surrey Posted on 06/03/2025 , work completed 06/03/2025