altHere at Birmingham Glass Services we are committed to giving you  all of the information you need so that you can be confident in choosing your replacement window provider.

altContact us at any time so that we can provide you with the information you need. Meanwhile, perhaps the answer to your question is below.


Q. Are double glazed windows maintenance free?

A. In terms of decorating (painting) yes, but to keep them looking good and operating smoothly, a wipe over with warm soapy water and lubrication of hinges is recommended. However, do not use household cream cleaners (unless they are specifically for upvc) as these will scratch the surface and dullen the appearance.


Q. How long will it take to fit the windows?

A. That depends on how many windows and doors you are changing. However, as a good rule of thumb it would take approximately 3 days to change all of the windows in a 3 bedroom detached house.


Q. Will the windows discolour in sunlight?

A. Our windows are guaranteed not to discolour and we guarantee all of our windows for 10 years.


Q. Will I receive a Building Control Certificate to cover my installation work?

A. Yes we obtain our Building Control Certificates from Certass.

For installations that require Building Control registration via Certass you are also issued with an Insurance Backed Guarantee (IBG) via QANW.

click here to learn more about QANW

click here to learn more about Certass


Q. What is  a Insurance Backed Guarantee (IBG) ?

A. An Insurance Backed Guarantee is a policy of insurance which shall come into effect in the event that your installer ceases to trade and will provide you with the benefits of the guarantee issued by them; where they are no longer in a position to honour same.


Q. What is meant by energy rated windows?

A."A" rated windows are the most energy efficient windows available in the UK as defined by the BFRC Rating Scheme. This is the UK’s national system for rating the energy efficiency of windows and is recognised within the Building Regulations as a method to show compliance for your replacement window installation. Window Energy Ratings use a consumer-friendly traffic-light style A-E ratings guide similar to that used on ‘white’ goods (such as fridges, freezers, washing machines etc…). This ratings label can be used by you to make more informed choices about the energy efficiency of the windows you are looking to purchase. From October 2010 all of our window installations are "A" rated.


Q. Who monitors the WER (Window Energy Rating ) scheme?

A. In Birmingham Glass's case we are audited by B.S.I. (British Standards Institute). With whom we hold a Kitemark KM 566948.

kitemark symbol


Q. How long are your windows guaranteed for?


White Profiles. 10 years with respect to colour stability, shape retention, impact strength retention and resistance against attack from salt laden atmosphere, cement mortars and certain other materials used in house construction.

Woodgrain on brown Profiles. 5 years with respect to adhesion of laminate, shape retention and impact strength retention.

Double Glazed Units. 10 years with respect to unit breaking down (seals / misting). 
Breakages are not covered by this guarantee.


Q. What causes condensation and how can I avoid it?

click on the condensation below for more information







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