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Endorsed by Which? Trusted Traders

Cox Format Developments Limited

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33 Reviews

Opening Hours
Today - 07:30–16:30
  • Monday 07:30–16:30
  • Tuesday 07:30–16:30
  • Wednesday 07:30–16:30
  • Thursday 07:30–16:30
  • Friday 07:30–16:30
  • Saturday - Closed
  • Sunday - Closed


Cox Format Developments Limited is a professional building company. The majority of our work is through personal recommendations. We are always happy to show previous work and our customers are happy to let you look! We pride ourselves on quoting a good price and sticking to it. Unless you instruct us to, we never add on "extras" as some less reputable builders do as their standard practice.

Because we are professionals, we can see what work is necessary to achieve your objectives, and we price accordingly. Others may quote cheaper initially, then add on what they see as "unforeseen extras". We believe our work is cheaper for the client in the long run.

On Budget... On Time... Everytime.

More information can be found on our web site www.coxformat.co.uk or at www.facebook.com/cox.format
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What we do

  • Builders

    • Loft conversions
    • Extensions
    • Building services
    • Garage conversions
    • Log cabins and homes
  • Roofers

    • Chimneys
    • Flat roofing
    • Guttering, fascias and soffits
    • Lead work
    • Roof and skylights
    • Rubber roofing (EPDM)
  • Loft and property converters

  • Bathroom fitters

    • Bathroom design services
    • Bathroom refurbishment
    • Wet rooms
    • Bathroom Installation
    • Accessible bathrooms and showers
  • More Services

    • new build houses
    • velux windows

Customer reviews

Why you can trust these reviews

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33 reviews
Customer Service
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Very high standard of work
Customer Service
We have now used Cox Format on 3 separate occasions over many years to carry out loft conversions and kitchen extension. They have consistently worked to a very high standard. In addition to great workmanship (with zero snagging / problems) they are timely, polite and courteous, and they respond to any queries / issues very promptly. Highly recommend.
Kate Posted on 22/02/2017 , work completed 22/02/2017
Loft Conversion in Barnet
Customer Service
The team were well organised and arrived on time every day. All trades were of very good standard and the finish to the build is excellent. Any small issues that we had were sorted out and the foreman was polite and made sure everything happened when it was supposed to. The job was completed on time and to a very high standard. I would recommend Cox Format.
jonesij Posted on 09/10/2015 , work completed 09/10/2015
Which? Local Review
Customer Service
Cox Format did a hip to gable loft conversion on our semi-detached house. The build was on time and on budget. The guys worked quickly and efficiently. Small issues that arose during the process were dealt with efficiently and without trouble. Highly recommended.
Preyesh Posted on 22/04/2010 , work completed 22/04/2010