Extensions
With over 20 years of combined experience in the home improvement industry, CMJ Installations Ltd is dedicated to providing top quality service to the local community.
Why Choose Our Extensions?
Extensions
Why Choose CMJ Installations for Your Extension?
At CMJ Installations, we design and build high-quality home extensions tailored to your needs. With over 20 years of experience, we ensure a seamless, stress-free process from design to completion.
Custom Designs & Expert Craftsmanship
Whether you need a larger kitchen, extra bedroom, or open-plan space, we create bespoke extensions that blend seamlessly with your home. Using premium materials and expert techniques, we ensure durability, style, and energy efficiency.
Reliable, Family-Run Service
As a trusted, family-run business, we handle the entire project with honesty, professionalism, and minimal disruption.
For a beautiful, functional extension that adds value to your home, choose CMJ Installations—where quality meets craftsmanship.
Our commitment to our customers
Our commitment to our customers
At CMJ Installations Ltd, each of our customers is important to us and we firmly believe all have the right to a fair, swift and courteous service at all times.
All complaints in the first instance should be sent through to info@cmjinstallations.co.uk Once in receipt of a complaint, we will deal with it promptly, effectively and in a positive manner.
Why Choose CMJ Installations Ltd?
All CMJ Installations Ltd windows and doors are now Official BFRC Energy Rated A+, and officially stamped as standard.
All our windows and doors come as standard with a full insurance backed guarantee giving you a peace of mind.
All standard uPVC windows and doors are manufactured to the highest standard.
