Conservatories - Space, style and functionality personally tailored to suit your lifestyleWindows and doors - Energy-efficient windows & glazing that save hundreds of £'s per year & reduce your carbon footprintWarm Roof - Replace your conservatory roof with a Guardian Warm Roof.


Conservatories | Extensions | Warm Roof | Windows & Doors | Orangeries in Colchester, Essex.

Welcome to Conservatories and Extensions, the home of quality conservatories, Warmroof, windows, doors, roofline products, garage conversions, decking, fencing, and, of course, house extensions, general building work and loft conversions.

Your one stop for Construction Services in Colchester, Essex.

ConservatoryandExtensions.com is the digital marketing arm of Bentley Plastics & Construction (Back and Son).

Based in Colchester, Essex and with over 20 years experience in the building and home improvement industry, Bentley Plastics and Construction are proud to provide you with the perfect finish to your home, whether it be a small addition or modification or a full scale conservatory or house extension.

Warm Roof comes to Colchester – The first and only approved conservatory roof replacement system in the UK today - See our new Warm Roof section and convert your conservatory roof

Whatever your home improvement needs', our family run construction business offers professional and quality orientated products and workmanship from the initial meeting through to design presentation and the completed job.

We adopt a whole new perspective to conservatory and extension construction and promise not only to transform your home, but also your way of life. From a classic Gable-fronted conservatory to contemporary conservatory designs with bi-folding doors, whatever you choose, Bentley Plastics and Construction will transform your living space to a thing of beauty and will be designed to enhance the existing features of your home.

Extend your living area or kitchen and dine under the stars with our bespoke and personalised conservatories & extension construction services. Create a new office, bedroom or living room with our incredible garage conversions or transform your garden with our UPVC decking and innovative landscaping.

Whatever your requirements we offer a variety of styles, colours, shapes and sizes to suit your personality and perfectly match your home. And with every door and window being “A” rated for energy efficiency, you can be sure of reducing your energy requirements and reducing your personal carbon footprint.

Because we believe in a personal service, we advise on all aspects of the required conservatories & extensions construction work; ensuring you feel comfortable you have made the perfect home improvement choice to suit your lifestyle.

As the premier conservatories & extensions construction company in Colchester, Essex we can provide drawings, 3D images and also act on your behalf with planning & building regulations and all the associated red tape, taking the headache out of every aspect of construction and avoiding any mistakes or problems from day one. We are qualified to the highest standard in every area of conservatories & extension construction and hold recognised construction certificates, regulated by the various governing bodies.

View the regularly-updated gallery for previously finished designs along with the 'construction techniques', showing how it all comes together. Visit our 'testimonials' page where our previous clients speak favourably on our behalf.

For more information on windows & doors call now on Colchester 01206 256 456. 

Bentley Plastics & Construction based in Colchester, is a Proud Member of
The Double Glazing Ombudsman Scheme, watch the video

Covering the South East of England, here are just some of the areas we provide conservatories, windows & doors, UPVC roofline, extensions and more:
Colchester, Clacton, Ipswich, Chelmsford, Maldon, Bergholt, Braintree, Walton, Frinton, Halstead, Harwich, Dedham, Sudbury, Witham, Boxted, Manningtree

The information contained in this website is for general information purposes only. The information is provided by Bentley Plastics & Construction and while we endeavour to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.

In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits arising out of, or in connection with, the use of this website.

Through this website you are able to link to other websites which are not under the control of Bentley Plastics & Construction. We have no control over the nature, content and availability of those sites. The inclusion of any links does not necessarily imply a recommendation or endorse the views expressed within them.

Every effort is made to keep the website up and running smoothly. However, Bentley Plastics & Construction takes no responsibility for, and will not be liable for, the website being temporarily unavailable due to technical issues beyond our control.