Endorsed by Which?

Test Valley Glass & Window Company Ltd

5.0

31 Reviews

Opening Hours
Today - 09:30–16:00
  • Monday 09:00–17:00
  • Tuesday 09:00–17:00
  • Wednesday 09:00–17:00
  • Thursday 09:00–17:00
  • Friday 09:00–17:00
  • Saturday 09:30–16:00
  • 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.

About

Established in 1995 Test Valley Windows prides itself on customer satisfaction. The majority of our business comes from existing clients and personal recommendations, we strive to achieve customer gratification at all times.

Director Malcolm Mackenzie says “we are a friendly approachable company with a genuine desire to fulfill customer’s needs. Our sole aim is to provide a professional service from conception to completion with an after sales service second-to-none”

This is echoed in having been awarded the Plastic Window Federation Certificate of Excellence for impeccable service every year for the last 18 years. Adopting a 'no pressure' sales policy, we will listen to your requirements, offer professional advice and produce a free comprehensive no obligation quotation for you to make an informed choice, at your leisure.

So if you are thinking of buying Windows, Doors, a Conservatory or Orangery, contact us or visit our showroom to find out why so many of our customers would recommend us.

What we do

  • Glaziers

    • Replacement window services and repairs
    • Double glazing installation
    • Double glazing repair
    • Sash windows
    • Aluminium Windows
    • UPVC Windows
    • Double glazed units
    • Stained glass
  • Conservatories

    • Conservatory maintenance
    • Conservatory repairs
  • Doors

    • Bi-fold doors
    • Patio doors
    • Orangeries
    • Front door
    • French doors
    • Composite doors
    • UPVC doors
    • Fire doors
  • Double glazing

    • Double glazing suppliers
  • More Services

    • orangeries
    • porches
    • livin room
    • window repairs

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
31 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
Sort by
Highly recommended
Customer Service
Quality
Value
Replacement conservatory roof glass panel due to glazing blown, plus fixing of sticking conservatory French doors. Dave was open and honest about what was required, costs and time to complete. He called prior to arrival and was always on time for the quote and to complete the work. They cleared up after working and left everything super tidy. The roof looks fantastic and you would never know that any work has been done. The glass was a great match to the existing conservatory roof (which is c.20 years old). The conservatory French doors now open and lock without sticking - a huge improvement!
Customer in Hampshire Posted on 17/11/2025 , work completed 30/10/2025
Cannot rate them high enough! Just excellent
Customer Service
Quality
Value
Test Valley Windows have just completed a full house - 2 very large structural bays, 1 bow window, 10 other windows and new front door, french doors and garage side door for us. A large job! I have to say the process from start to finish has been excellent. Nothing was too much trouble. No, they are not the cheapest, but we compared their products against other companies around and we chose them because their product looked and felt superior. That extra cost is so worth it. It took a full two weeks to do the work, and we had Lee and Zak as our fitters. I have to say the quality of the product might be excellent, but the quality of the fitters is even better - outstanding. They made sure the job just shined! They truly made sure everything was correct to their own standards and their standard are high! They kept to the schedule, they kept to the agreed price - how often can you say that! We did have 1 or 2 issues to deal with when the french doors were measured wrongly and were too low. They dealt with this instantly, reordered new ones and fitted them a week later - no extra cost to us - it was just sorted! We have also had Dave their maintenance man around to check on a few things again very pleasent and helpful and again nothing was too much trouble, 10 year guarantee they said and they mean it! We are so pleased with everything that they have done for us. I have absolutely no hesitation in recommending them to anyone else and I have done already!
Customer in Posted on 13/11/2025 , work completed 17/10/2025
Very good experience
Customer Service
Quality
Value
This is the third job we've had done by them. Always reliable, turning up when expected, and the jobs they have done have been first class. Started with a new entrance porch and last year renewed half of our windows. This year the other half were done. I wouldn't use anyone else.
Customer in Hampshire Posted on 11/11/2025 , work completed 07/11/2025
Faultless from start to finish
Customer Service
Quality
Value
Test Valley Glass & Window Company satisfied our every need when surveying, quoting and supplying some 12 new UPVC Windows and a new Composite front door. Their fitters were efficient, skilled and totally professional in all aspects of meeting our needs, all within a fully justified price. The high quality of the products/materials used was complemented by their obvious skill and experience in the work involved, accompanied by their cheerful and polite manners. They showed the utmost care and appreciation of our home, laying protective floor coverings throughout and leaving everything in a spotless condition. Equally, it was obvious from their service years and remarks that they highly respected their employer and the standards expected of them, as reflected in the work performed. I would not hesitate to recommend this Company to anyone.
Customer in Hampshire Posted on 03/10/2025 , work completed 02/10/2025
New windows
Customer Service
Quality
Value
Work carried out in a very professional manner by a good team of men. Very tidy and cleared up at end of job. Slight problem with one unit was quickly resolved. Would have no hesitation in using this company again.
Customer in Hampshire Posted on 19/09/2025 , work completed 17/09/2025
Great work
Customer Service
Quality
Value
The team was lovely. We got comments from other builders working next door about how lovely they were. They worked quickly and cleanly. Fantastic company.
Customer in Hampshire Posted on 01/05/2025 , work completed 25/04/2025
Excellent Company
Customer Service
Quality
Value
I have seldom encountered such an efficient company and the staff couldn’t have been more pleasant and helpful. They replaced a large window in a bedroom and also provided and installed a new front door. All work was carried out competently on the dates and times given. I had a small reservation about the type of lock on the front door and when I expressed my concern, a new and different lock mechanism was ordered and fitted without hesitation. Every member of staff with whom I have had dealings has been efficient and friendly. In all, I cannot recommend this company too highly. Excellent service.
Customer in Hampshire Posted on 11/04/2025 , work completed 26/03/2025
Professionally fitted window replacement
Customer Service
Quality
Value
Our garden room (called a hybrid-orangery by the original company who installed the extension) has badly fitted windows by the company who built it. The windows had tissue paper stuffed between the window sill and the brickwork. The window bowed outwards and needed replacing. TVW measured the aperture and supplied and fitted a window professionally and correctly. The window was fitted on the day agreed and was at the agreed price. I've used TVW previously and am always pleased with their cleanliness and attention to detail. I will use them again.
Customer in Hampshire Posted on 16/10/2023 , work completed 03/10/2023
5 star service from start to finish
Customer Service
Quality
Value
Installation of 5 windows, back door with integral side window and a 2700mm sliding patio doors two days ago. All installed on schedule and budget. Excellent show room with a personable, knowledgible and helpful manager. Excellent admin staff, very efficient. A cheerful Installation team arrived on time, worked efficiently and cleaned up superbly. No redecoration needed and we're very pleased with the finished look. The lead installer noticed a small nick on the patio door handle and said that will be replaced at the same time as supplying more window lock keys. An excellent product with aftercare products for cleaning etc supplied.
Customer in Hampshire Posted on 01/09/2023 , work completed 30/08/2023
Excellent work, reasonable price and very tidy too
Customer Service
Quality
Value
They've now done two jobs for us. FIrst was renewing our porch and converting it to double glazing. More recently, replacung two windows and a front door. They came when agreed and were fast, efficient, and very tidy. All three workers from there that I've met have been cheerful and nice. We won't be looking at anyone else for further similar jobs.
John in Hampshire Posted on 18/08/2023 , work completed 02/08/2023
The trader replied (on 29/08/2023)
Thank you for taking the time to share your experience you have had with Test Valley Windows.