About us

MJB Conservatories is a family run business. We have been in Bedfordshire, Hertfordshire and Buckinghamshire since 1982. We have extensive knowledge and experience in all aspects of the industry. Our friendly and professional attitude makes dealing with our company a very positive experience as you will see from our 5* reviews on Trustatrader.com and Trading Standards Approved.

We supply our PVCu windows, doors and conservatories for retail and to the trade and this means that we can produce windows, doors and conservatories on either a supply only or supply and fit basis to suit our customer requirements. If you are looking for an attractive, maintenance free alternative to timber you need look no further than our range of high quality PVCu window, door and conservatory products. The versatility and elegant good looks of our comprehensive range of products are designed to suit any style of architecture. We can offer you a design tailor made to meet your individual needs.


Only the best materials are used to manufacture our comprehensive range of products. For example, the PVCu profile sets the highest standard for quality - the British Standard Kitemarks, BS 7950 and BS EN 12608. PVCu has now achieved a Green Guide A rating which firmly establishes the products as sustainable.

Here at MJB Conservatories our focus is on quality. ‘Quality products at an affordable price’ is our motto and we work hard to achieve this aim. We take pride and specialise in quality products that will look as good as new for years to come with minimum maintenance.

For our trade customers this will mean that once the product is installed there will be minimum service required.

All our products come with a manufacturer’s guarantee.

If you are looking for quality windows, doors or conservatories at affordable prices then take a look at our gallery of products.


Enjoy the benefits of improved heat and sound insulation. Our well insulated frames, quality double glazing, weather tight seals and multi chambered profiles ensure that heat loss is kept to a minimum. Where noise is an issue, the thermal insulation properties of PVCu and our unique Q-Lon gasket will help to reduce noise from the outside world.

Energy rated products are also available to ensure the best thermal efficient products not only complement your home, but benefit the environment and reduce energy bills.

The tough exterior of our doors, windows and conservatories are designed to withstand the extremities of weather. The maintenance free finish retains their good looks with just a wipe over with a damp cloth.

Customer Support

We aim to achieve a high level of support which is available within our office working hours. We are always happy to provide trade customers help with our expertise in surveys and orders particularly with unusual or complex designs.


Our commitment to quality extends from manufacture to customer service and support. Every customer is guaranteed a personal and professional service. Expert advice is offered on the design of applications which best suit your home and your pocket, and you can be sure of a trouble free installation with the very best in after sales support. Customer satisfaction is our priority.

Professional Installation

Even the best designed and built window will not look its best or perform to its maximum capability if it has not been professionally fitted with the care and skill it deserves. We offer a professional installation service with certified Certass engineers with all of our products. You will not be disappointed with the end result.

Why not take a look at our 5* reviews to see what some of our customers had to say about us and you will see why many make us their first port of call when they are ready to make more enhacements to their homes.