Endorsed by Which?

Crest Windows & Conservatories Ltd

5.0

67 Reviews

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

Crest Windows & Conservatories Ltd is a family run business, placing emphasis on respect for our customer’s property, the quality of our installation and value for money.

We have been matching the right windows and doors with the right properties in Southampton, Portsmouth and the surrounding areas for more than 15 years and our team has 40 years of experience in this area between them.

If you would like to arrange an appointment you can phone or email us. We look forward to hearing from you.

What we do

  • Double glazing

    • Double glazing installation
    • Double glazing repairs
    • Double glazing suppliers
  • Conservatories

    • Conservatory repairs
    • Conservatory maintenance
  • Doors

    • Bi-fold doors
    • Patio doors
    • UPVC doors
    • Composite doors
    • French doors
    • Front door
    • ​Aluminium doors
  • Glaziers

    • Double glazing installation
    • Sash windows
    • Double glazing repair
    • UPVC Windows
    • Triple Glazing
    • Aluminium Windows
    • Window consultants
    • Double glazed units

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
67 reviews
Customer Service
5.0
Quality
5.0
Value
4.9
Sort by
Highly recommended
Customer Service
Quality
Value
After being let down by several double glazing installers, I turned to Which? trusted traders and selected Crest Windows and Conservatories Ltd. Everything went very well, from the quote to the installation of a double-glazed back door. I chose a door with an integral Venetian blind which I am very pleased with. The door is very high quality, the installers were courteous and hard working and explained carefully how the door operated; the site was left clean and tidy. I got the impression that they were proud of their work. I thought the quote was good value, and I have recommended Crest to a friend.
Customer in West Sussex Posted on 15/06/2025 , work completed 12/06/2025
Replacing 11 sealed glass units in conservatory
Customer Service
Quality
Value
Two companies who were agents for the manufacturers declined to quote. The manufacturer told me that the reasons are that if they damage a part it might be difficult to source a replacement, and that there is more money in replacing the entire roof! Crest were able to quote for exactly what I needed, and their price was very competitive. The surveyor was knowledgeable and helpful and the quote was prepared quickly. The fitters were obviously familiar with the procedure, were well-organised, and were willing to clean some of the trim that I could not reach. I am very satisfied with the job.
Customer in West Sussex Posted on 20/11/2024 , work completed 18/11/2024
Replacement bay and eight other windows and door
Customer Service
Quality
Value
Team of three arrived on time and worked solidly for two days. Workmanship was excellent and they cleared all rubbish and hoovered as they progressed. Any queries were answered. We are very pleased with the quality of product and have already initiated quote for further work. We rate the company very highly and will not hesitate to recommend them.
Customer in Hampshire Posted on 27/09/2024 , work completed 25/09/2024
Excellent job
Customer Service
Quality
Value
Replaced 3 sealed units in conservatory roof and installed a maintenance free window board in my lounge. Excepted service from start to finish. The window board was replaced without any damage to decoration. Left everything clean and tidy. Wouldn’t hesitate to recommend Crest and will certainly use in the future.
Customer in Hampshire Posted on 31/08/2024 , work completed 30/08/2024
Highly recommended
Customer Service
Quality
Value
After returning from holiday to find a pane of the sliding door between our conservatory and house had shattered we emailed Crest for a replacement and had a response from Colin the following morning, before 9AM, despite it being a Sunday. As Crest put in the unit originally they had all the specs and didn't need to visit to measure up, so the email was followed up with a quick call to confirm and then a prompt invoice. The price was reasonable and the unit fitted about three weeks later. The fitters were professional, friendly and completed the fitting in no time, despite it being a tricky manoeuvre given both panes had to be removed to get the broken on out. They left everything tidy. Overall, this is the fourth time we've used Crest and have no hesitation in recommending them.
Customer in Southampton Posted on 16/07/2024 , work completed 11/07/2024
Far exceeded expectations
Customer Service
Quality
Value
We had quotes for a bespoke garden room, Crest came in over £3,000 cheaper than anyone else. They understood what we wanted (which was not a standard conservatory), a feeling of being in the garden inside the structure. They were swift, tidy, respectful to the property and all was completed to budget and schedule. Absolutely thrilled with the outcome. They even supplied and fitted a free water butt which was not part of the deal and came back a few days later to make sure all was ok. They come highly recommended.
Customer in Hampshire Posted on 02/06/2024 , work completed 29/05/2024
Double Glazing
Customer Service
Quality
Value
The men were friendly and professional. They arrived on time and got straight on with the job. They tidied up after themselves.
Customer in Hampshire Posted on 05/01/2024 , work completed 03/01/2024
New windows
Customer Service
Quality
Value
They replaced 4 windows on the front of the house. I am very happy with the work done. They arrived on time, and were very clean in the way they worked. Replaced some cladding around one window in order to give a perfect finish. I would be happy to recommend Crest Windows for this sort of work.
Linda in West Sussex Posted on 26/08/2023 , work completed 18/08/2023
Excellent work, thanks Crest
Customer Service
Quality
Value
The large contract was handled brilliantly throughout and they were meticulous about clearing up behind them. They completed the project early, despite poor weather throughout the period.
Customer in Hampshire Posted on 22/08/2023 , work completed 31/07/2023
Great workers
Had a door and window replaced with French doors work was carried out efficiently well tidied up after nice cheerful workers good price and on time
Sue in Portsmouth Posted on 14/07/2023 (Reviewer did not use service)
Outstanding Company
Customer Service
Quality
Value
We had a couple of broken-down windows replaced and other minor repairs. From the quotation through to completion of the work I could not recommend this company more highly. Accurate quote, kept informed on timescales, efficient, polite, and the work was over and above expectations.
Customer in West Sussex Posted on 26/05/2023 , work completed 26/05/2023
Prompt, polite and very efficient.
Customer Service
Quality
Value
I was kept informed beforehand and the men arrived promptly and set to work immediately. It was an unpleasant job and threw up unexpected problems which were dealt with cheerfully and efficiently, stopping only briefly to drink the coffee I provided. The job was to take out a rotting door and window from an outhouse. It had taken the brunt of the weather and it seemed practical to replace with weather resistant double glazing. Also replace fascia and guttering on adjoining garage. The end result exceeded my expectations, I am extremely pleased. There was no extra charge for the unexpected extra work involved and I felt that the work carried out was very good value for money. The men cleared away afterwards, leaving the patio area cleaner than they found it. I would certainly use these people again and recommend them to others. Full marks!
Customer in Hampshire Posted on 18/05/2023 , work completed 18/04/2023
Replacement back door and associated window
Customer Service
Quality
Value
Fantastic workmanship and friendly installers as always. Crest are our first choice for all windows, doors and conservatory works moving forwards. Gary and his team are brilliant to work with and happy to go that extra mile, even looking at a clogged drainpipe we had which needed further investigation.
Oli in Hampshire Posted on 15/01/2023 , work completed 11/01/2023
Thoroughly recommended
Customer Service
Quality
Value
We spent over a year trying to find someone to replace some double glazed units in a hardwood conservatory roof. Colin and his team were happy to do it, attended on time and offered advice on the replacement. They were efficient ordering and then installing the replacement panels. I would have no hesitation recommending them.
Customer in Hampshire Posted on 11/01/2023 , work completed 06/01/2023
Quality and value.
Customer Service
Quality
Value
Crest were friendly and professional throughout, from obtaining the initial quote through to completion of the work. Colin was very patient when we changed our minds a number of times over style/colour! Crest supplied and fitted replacement windows, a new sliding patio door and a new front door. The fitters arrived on time, did a great job and tidied before leaving. We would definitely use them again.
Customer in Hampshire Posted on 26/11/2022 , work completed 23/11/2022
Excellent service in replacing double glazed windows and doors
Customer Service
Quality
Value
I have no hesitation in recommending Crest for replacement windows and doors. Our experience in dealing with them was great, they provided top quality products and invaluable guidance. All work completed on schedule to a high quality finish. They fully tidied after each day and provided constant updates on progress. Communication with this firm was excellent, and we were kept up to date with everything promptly and fully Thank you for an excellent job
Customer in Hampshire Posted on 23/11/2022 , work completed 23/11/2022
Highly recommended
Customer Service
Quality
Value
Just wanted to share my experience using Crest Windows & Conservatories Ltd. From the start, they put our minds at rest, very helpful from speaking to the lady at their office booking in a survey, someone popped round within a couple of days to measure up no hard sell, 6 weeks later after survey had windows fitted by two men (all employed by company not sub-contracting) couldn't ask for a better company and based on Hayling. Thank you Crest Windows 👍
Kirk Posted on 04/07/2022 , work completed 14/06/2022
Great experience.
Customer Service
Quality
Value
We had the whole house glazed, windows, doors and patio door. From the start the Crest team members were punctual, polite and knowledgeable. The product is great but better than that is the service, they answer the phone, they turn up when supposed to and no unsolicited calling and sales gimmicks.
Phil in Hampshire Posted on 27/06/2022 , work completed 24/06/2022
Replacement Windows
Customer Service
Quality
Value
Crest replaced 5 windows, in less than a day, on schedule and for the quoted cost. It was important the new windows looked the same as the previous, low-quality units - they do. Very pleased with the quality of the new units, workmanship and attention to detail. The house immediately felt quieter and warmer. Happy to recommend this company.
Customer in West Sussex Posted on 07/06/2022 , work completed 31/05/2022
Excellent workmanship
Customer Service
Quality
Value
Arrived on time, very tidy with dustsheets throughout. Replaced a conservatory type door onto the roof space. Left all areas immaculate. Solid door - looks great.
Customer in West Sussex Posted on 17/05/2022 , work completed 17/05/2022
Great work and completed on time.
Customer Service
Quality
Value
The quality of the work was to a high standard. They replaced two French door combinations, twelve windows, fascia, soffit and gutter. It was all completed on time and the cost was exactly what they quoted. Customer service was excellent and very friendly.
Sue in Hampshire Posted on 29/03/2022 , work completed 25/03/2022
Repair gable end soffit and rotten wood front of house fascia.
Customer Service
Quality
Value
The lads that did the job were top draw, polite, confident and very tidy. Done ahead of time initially indicted and on budget.
Customer in Hampshire Posted on 28/10/2021 , work completed 27/10/2021
Highly Recommend
Customer Service
Quality
Value
Difficult installation of 6 x windows, 1 x composite door and side panel and 1 x residential door. Installation completed on time and for quoted price. All staff courteous and helpful. Special thanks to Paul who completed the installation. He went above and beyond my expectations considering the obstacles he had to overcome. For a stress free double glazing experience at a fair price, I would thoroughly recommend this company.
Customer in Hampshire Posted on 06/09/2021 , work completed 20/08/2021
Windows
Customer Service
Quality
Value
Had new windows fitted by crest windows. The 3 workers worked very hard all the time they were here. Very clean the way they left our home when they finished, complete trust while they were in our home and would recommend this firm to anybody.
Customer in Southampton Posted on 01/08/2021 , work completed 29/07/2021
Front Porch Rebuild
Customer Service
Quality
Value
Gary and his team did a great job on refurbishing our old front porch. The whole process went very smoothly from the initial quotation visit to the day of construction. Colin was very helpful on the initial visit and a very competitive quotation was received within 24 hours. Communication with the company was excellent and we were kept updated at all stages. The guys were punctual, polite, friendly and very professional. We are very happy with our new porch and couldn't be more pleased with the quality of their work. This is the second job that Crest have completed on the house ( French windows and glazed utility room installed five years ago ) and that work was of a similar high standard. If you're looking for quality and value whilst also supporting a small local company then I can recommend Crest Windows & Conservatories without reservation.
Ken in Hampshire Posted on 10/07/2021 , work completed 15/04/2021