Whether your project be a single window repair or a complete property renovation, CTB Installations give the advice and attention to detail that each installation and customer deserves.





Garage Conversions



We are in your area!

We are proud to say our business started in 1996 when Claudio our Company Director started fitting windows and doors at weekends from a small van. We now have offices and a showroom in our hometown of Rothwell with a strong team of experienced uPVC fitters working around the county and further afield and efficient office support to deliver first class products, installation and customer service.

We have years of Experience!

Our history proves a background of excellence and integrity, and therefore a company that you can trust. By choosing us you will benefit from our deep roots and the traditions we have built into the company over our years of operation.

We provide a wide range of products and services

Our track record means experience, dedication and a solid reputation. Finding the right double-glazing company for the job can be a tricky task in itself. Our friendly and knowledgeable installers have years of experience under their belts. We’re trusted by the local community and that’s why, after 24 years in the industry, we’re still going strong.

We offer a 10-Year Guarantee

All our doors, windows and conservatories come with an easily transferable 10 year guarantee.

We guarantee to repair or replace any faults in your doors, windows and conservatories for 10 years. Our experienced engineers will carry out any work required under the 10 year guarantee we offer and will quickly fix any problems big or small. Being regulated by FENSA this ensures our guarantee is supported by a leading organisation. For extra peace of mind if we cease to trade during the 10 year guarantee, your guarantee is insurance backed meaning you will remain covered by Quality Assured National Warranties (subject to the terms and conditions of QANW)

If you have an issue after installation please call us on 01536 711663 and we will arrange a convenient time for an engineer to come and resolve the problem.

We don't like to brag, we are just proud of our what our customers think of our work

“I found the work excellent, the builders were courteous and polite and tidy. I would recommend this company to anybody. They make an effort to keep you informed at every work stage. When I needed to contact the office, Claudio would come to my home to see to discuss the project at my convinience”

Garage conversion and small extensionCustomer in Kettering, January 2020

“Professional, reliable, courteous,. New front door, looks great. will use CTB in the future”

New UPVC front doorCustomer in Kettering, November 2019

“I had used this company before and found them so good that I had no problems using them again. A first class profesional service”

Full conservatory and new front doorCustomer in Kettering, October 2019

“Worked quickly and efficiently and cleaned up afterwards. Very pleasant workmen.”

New guttering and soffitts and clean up of stonework to front of houseCustomer in Kettering, October 2019

Are you looking to update you home?

Please visit us at our Rothwell showroom
or call on 01536 711663 for a free no obligation quote.


21 Market Hill, Rothwell,
Northamptonshire. NN14 6BW
Mon-Fri 8AM-5:00PM
Saturdays: by appointment only