Endorsed by Which?

JC Windows (UK) Ltd

4.8

164 Reviews

Opening Hours
Today - 24 hours
  • Monday - 24 hours
  • Tuesday - 24 hours
  • Wednesday - 24 hours
  • Thursday - 24 hours
  • Friday - 24 hours
  • Saturday - 24 hours
  • Sunday - 24 hours

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

John Tunnicliffe - a time served Joiner set up JC Windows in Blackpool, Lancashire in 2000 after working in the Double Glazing industry for 12 years. Since then, the family run company has flourished and gained an enviable reputation for delivering a bespoke service.

JC Windows operate a no salesmen policy, and customers deal directly with John to benefit from his extensive experience and specialist knowledge. Attention to detail throughout the design and installation process is a hallmark of JC Windows' approach to home improvement, and customer testimonials are available as references to the quality of work undertaken.

What we do

  • Conservatories

    • Conservatory glass heat reduction film
    • Conservatory maintenance
    • Conservatory repairs
    • conservatory roof conversions
    • conservatory roof insulation
    • Conservatory Roof replacement
    • Hardwood conservatories and orangeries
    • Sun Lounge
  • Doors

    • ​Aluminium doors
    • Bi-fold doors
    • Composite doors
    • Door repairs
    • Fire doors
    • French doors
    • Front door
    • Orangeries
    • Patio doors
    • UPVC doors
  • Glaziers

    • Aluminium Windows
    • Double glazed units
    • Double glazing installation
    • Double glazing repair
    • Glass boarding up and replacement
    • Replacement window services and repairs
    • Sash windows
    • Stained glass
    • Triple Glazing
    • UPVC Windows
    • Velux windows
    • Window consultants
  • Roofers

  • More Services

    • aluminium products
    • commercial work

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.

4.8
164 reviews
Customer Service
4.8
Quality
4.9
Value
4.8
Sort by
New Sliding Patio Doors
Customer Service
Quality
Value
Had JC Windows fit two sliding patio doors to the rear of our house. From initial contact to final installation, the job was perfect. The fitters were punctual, polite and respected our property. Would definitely recommend.
Customer in Posted on 22/05/2026 , work completed 20/05/2026
Very Satisfied
Customer Service
Quality
Value
JC Windows fitted my bi-fold doors, a canopy and a front door. Mark came to provide advice, assess and work out a quote. He was knowledgeable and helpful and provided sound advice. The quote arrived within a day or two, with a full breakdown. No deposit was required. John did the technical survey and provided another opportunity for me to double check some things and to seek further information. Both John & Mark were very professional and patient. Martin & Mark the fitting team were excellent. Very tidy, very skilled leaving a high quality finish. Both were very friendly and didn't seem to mind me asking them about progress. JC Windows have been very easy to contact each communication has been friendly and straightforward whether over the phone or by email. . Everyone i have dealt with has been a credit to the company.
Customer in Lancashire Posted on 21/05/2026 , work completed 19/05/2026
Utmost confidence
Customer Service
Quality
Value
I had 8 condensed windows; different sizes, different glass, upper and lower levels. From start to finish, this company has exhibited absolute professionalism. One employee, Mark came to assess and give a quote; which i found to be a fair and competitive price. He was informative and friendly. His visit was followed promptly with a well- presented quote; giving me a breakdown. No pressure was put on me and no deposit was required. John came to do the technical survey and I was very confident that the work would be completed with absolute professionalism and integrity; which it was. Today, the windows were changed efficiently and withno fuss. It has been very easy to contact John and Mark and every communication has been friendly and straightforward.
Customer in Lancashire Posted on 07/05/2026 , work completed 07/05/2026
Very satisfied customers
Customer Service
Quality
Value
Moved to a new property without realising the windows needed replacing. Decided to go with JC Windows as Mark was the friendliest and most helpful of the reps we spoke to. They were also the only company that would do the windows the way we wanted. We weren’t looking forward to the actual work being carried out, as the thought of having the house disrupted and there being strangers in your home is never nice. Turns out Mark and Martin were 2 of the nicest workmen I’ve ever encountered. They cracked on with the work from the moment they arrived and left each room tidier than it had been before. The windows were fitted with care and attention to detail and they have improved the noise insulation, security and warmth of the house. Thanks again to John, both Mark’s and Martin for improving our home.
Customer in Blackpool Posted on 13/04/2026 , work completed 01/04/2026
Excellent Complete Window & Door Replacement
Customer Service
Quality
Value
JC Windows did a fantastic job replacing all my windows and doors. Throughout they attended as scheduled and their thorough quote was adhered to, with clear and helpful advice on what was required. Compared to other larger local companies their price was significantly lower, with a high quality product and no pressured sales techniques. The fitters were experienced, professional and friendly. Their knowledge ensured the most difficult of windows were fitted correctly and with care. JC Windows are FENSA registered which provides essential reassurance and documentation for the future. I would highly recommend this excellent local company.
Customer in Blackpool Posted on 24/03/2026 , work completed 16/01/2026
5 star service for French doors and windows
Customer Service
Quality
Value
What a fantastic company. From the first visit to provide a quote, right through to completion, this company were brilliant. They showed up when they said they would, were professional at all times and did an amazing job. The guys carrying out the work were fantastic, friendly, and helpful. We will definitely use them again, thanks again for a great service!
Customer in Blackpool Posted on 09/12/2025 , work completed 09/12/2025
very tidy job by JC Windows
Customer Service
Quality
Value
Arrived on time and got to work straight away. Very polite and explained about the job. Really nice fitters who are obviously very experienced at what they do. They thanked me for ensuring the room was clear for them to work. they didn't expect to get finished in the day but worked right through to complete the job on the same day. The finished job is excellent and we are very pleased with it. They left everything tidy with little or no decorating to do and cleared away all the old windows. We are having JC back to do the downstairs windows after christmas.
Customer in Lancashire Posted on 02/12/2025 , work completed 27/11/2025
Highly recommended.
Customer Service
Quality
Value
I'm am thrilled with my new windows and will definitely use this company again. The work was carried out quickly and efficiently and everything was left tidy. I can't thank them enough. All done at a very good price too.
Customer in Lancashire Posted on 07/10/2025 , work completed 06/10/2025
Fast, clean and tidy, and on time
Customer Service
Quality
Value
Only a small job to replace an opening window pane, but the fitter arrived well within the given time window and completed the job quickly and without any mess or fuss. We used JC Windows for a problem we had last year - they were very good then so we went for the again this time. We would have no hesitation in asking them to help again should the need arise.
Customer in Lancashire Posted on 19/09/2025 , work completed 18/09/2025
Absolutely delighted
Customer Service
Quality
Value
I’m absolutely delighted by the work carried by Martin and Mark. They both worked exceedingly hard, went over and above in ensuring I was very satisfied with the job. They were tidy and conscientious and I would have no hesitation of recommending JC Windows.
Customer in Lancashire Posted on 12/09/2025 , work completed 12/09/2025