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 About Us

Rainbow are a leading local company that prides itself in the care and quality of service and installation.  We are all very down to earth and straight forward people, who will treat you with respect and importance, not just a number on a file!


We have been established since March 1992 and have given tens of thousands of local people two decades of high quality installations, and equally as important, prompt and professional after sales service. All of our products are produced to the highest possible standards in the most up to date factories to all of the relevant British standards.


We are members of The Guild of Master Craftsmen whose major objectives are to promote high standards of quality and service in all aspects with utmost care and consideration. Whether it be conservatories, windows, doors, porches, or roofline products, we at Rainbow will help and advise from day one to make your installation run smoothly.


As we are of course, human, we do make mistakes but have a service department dedicated to putting things right as soon as we possibly can, with as little fuss as we can.


You may not see Rainbow as heavily advertised as most other companies as we work mainly from recommendations from existing customers.  We hope that you agree that word of mouth is the best and cheapest form of advertising, hence we can keep our overheads to a minimum and pass the savings onto our valued customers.


double glazed windows, doors and conservatories


Transforming homes in Silchester & throughout Berkshire since 1992

We have used the ‘Duraflex’ profiles for two decades now and have always been impressed with their products.  ‘Duraflex’ is produced in Britain to BS7413 and BS 7950 to exact standards and has helped us maintain a leading edge in this area by using the most up to date and secure products available.


We are very aware of the need to reduce energy to save our planet & to reduce heating bills in these testing times, so our products carry an A rating to help keep more of your hard earned cash in your pocket.


All of our PVCU products are beaded internally for security, to stop glass being removed from the outside.  We use the ‘Sac’ locks and shootbolts and combined with high security hinges make the windows virtually impossible to force open.


Our products are fully guaranteed for 10 years.


Accredited Double Glazing: Quality Products 

double glazing CE marking

From 1st July 2013 it became mandatory for manufacturers of windows & doors to apply CE Marking to their products. CE marking indicates that a product conforms to legal requirements in specific European technical standards known as harmonised European Norms (‘hEN’). It enables a product to be placed legally on the market in any European member state. However, regulatory requirements may differ from country to country.


Declaration of Performance  

A key part of the CE Marking process is that a Declaration of Performance must be produced by the window manufacturer. The Declaration of Performance details all of the essential characteristics of the product and enables the information to be available to the end user. The document has to be available in the public domain, so not only does the certification need to accompany the product it needs to be visible in places such as our website. For a comprehensive list of all our product DoP’s (declaration of performance please click here




"I would readily recommend your company to anybody considering replacement windows"