We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies. You can understand more and change your cookies preferences here.

Coronavirus Read our latest advice

Endorsed by



Trusted Traders

CRK Windows LTD -Independent Network Installer

Profile thumb crklogo


28 Reviews

Opening Hours
Today -
  • 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 09:00–14:00
  • Sunday - Closed

What does an Approved Service endorsement mean?

Which? Trusted Traders assesses the services provided by companies who have applied to our scheme. Only certain aspects of the company are endorsed. The "Approved Service" ribbon logo shows you exactly which services they have been endorsed for, Independent Network have been endorsed for their installer network services. For more information please contact us here at W?TT or ask Independent Network direct.


At CRK Windows we have built an enviable reputation and loyal client base producing quality products at down to earth prices. We offer an unrivalled range of home improvement products all under one roof.

Established in 1977, we're a family run organisation with a team of experts who will manage your project throughout and offer an excellent after sales service. We're based in Hertfordshire and are a trusted installer of the highest quality VEKA products, and all installation come with Independent Network's 10-year insurance backed guarantee.

About Independent Network
Way back in 1996, when the double-glazing industry was in its infancy, a group of proud, hard-working installers, all using industry-leading VEKA products, came together to form Independent Network. An organisation that would let them prove their commitment to quality, craftsmanship and service that is second-to-none.

What we do

  • Glaziers

  • Double glazing

  • Doors

  • Conservatories

    • Conservatory Roof replacement
    • Sun Lounge
  • Roofers

    • Roof Light
    • Roofline
    • Cladding
    • Guttering, fascias and soffits
  • Building construction contractors

    • Porches
    • Canopy
  • Garage door repairs and installation

  • More Services

    • windows
    • window

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.

28 reviews
Customer Service
Sort by
Great job from start to finish
Customer Service
I've used CRK three times now to install doors and double glazing. I've always found them to be a superb company to deal with, from the initial visit by Bruce, the salesman, to discuss what I required, to the surveyor to measure up, and lastly the installers. Their windows are high quality, look great and were installed by a friendly, efficient team who went out of their way. They even cleaned some of the cladding on the front of my house to create a great finish. They cleaned up after themselves too. I find dealing with CRK to be easy and straightforward and would not hesitate to recommend them, or use them again.
Customer in Hertfordshire Posted on 18/10/2020 , work completed 16/10/2020
A good choice of company from beginning to end!
Customer Service
Having read the reviews posted this year I can honestly concur with all the positive comments. Seven windows and one very large patio door/window all completed in three days. Good, clean workmanship, Well done boys!
Customer in Hertfordshire Posted on 15/10/2020 , work completed 12/10/2020
Great company
Customer Service
We have used CRK windows for our front door and garage door. They take pride in their work and have made sure that we are happy with all of their work. Would recommend!
Customer in Hertfordshire Posted on 13/10/2020 , work completed 07/10/2020
Replacement porch doors
Customer Service
CRK did an excellent job. They were very helpful advising on doors and glazing options. The fitters also did an excellent job. Very impressed with the way they put addition trimmings around the top of the frame both inside and out to give a very neat finish. Would recommend this very competent company. In fact our neighbours have already had a door fitted by CRK after seeing ours. Well done CRK.
Customer in Hertfordshire Posted on 29/08/2020 , work completed 18/06/2020
DUPLICATE Great work
Customer Service
The team at CRK are informative and friendly and did a fantastic job of fitting our new front door. Really pleased with their work.
Customer in Hertfordshire Posted on 18/08/2020 , work completed 25/07/2020
Very pleased with the products and the work
Customer Service
Very happy with the service provided by CRK Windows from the very first meeting right through to the fitting team and office support. I would highly recommend this company., The team of fitters were very polite and considerate especially as the fitting took place during the Covid lockdown. The team was superb.
Customer in Hertfordshire Posted on 17/08/2020 , work completed 13/08/2020
Quality windows from a professional company - recommended!
Customer Service
Would strongly recommend CRK to anyone replacing their windows, having experienced a bad visit (and quote) from a national company. The sales team and the fitters were all knowledgeable and pleasant to deal with. Any questions we had were handled professionally and promptly, and all appointments were kept as agreed. The windows were fitted on time and we are delighted with the result. Thank you CRK!
Customer in Hertfordshire Posted on 14/08/2020 , work completed 12/08/2020
Garden room transformation
Customer Service
Great service from the ordering to fitment. Only a small job, but fitters showed great care and attention to detail, our Garden Room looks transformed. Happy to recommend.
Customer in Hertfordshire Posted on 12/08/2020 , work completed 07/07/2020
Excellent work and speedily carried out.
I have used CRK Windows in the past to install a replacement patio door which was done extremely well. This time we asked them to install a total of 11 replacement windows and the work was completed to a very high standard in just two and a half days. There was only one issue that we had with a small window that had the opening on the wrong side. I spoke with CRK Windows who agreed to replace that window, at no charge, which they did that day within hours! Excellent work, fine products and a good service. I would not hesitate to recommend them to anyone.
Customer in Hertfordshire Posted on 01/07/2020 (Reviewer did not use service)
Excellent quality and service
Customer Service
We have used CRK in the past for a conservatory and had no delay in returning to them when we needed a new front door. Bruce Roper provided excellent advice both over the phone and in the showroom, helping us to a decision that we are very happy with. The survey and fitting teams were also very professional and the door was built and fitted in excellent time . Although there was a small mistake with the knocker fitted this was rectified same day with no fuss. Overall we were extremely happy with the product and service and would recommend CRK.
Customer in Central Bedfordshire Posted on 22/06/2020 , work completed 18/06/2020