Contact u-value calculator for calculations about wood

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We can certainly recommend this service and will come back again if needed! Quick, accurate and hassle free!

Yelena Zargaryan,
Stroud Green Windows

Many thanks for your excellent service and sound advice I shall be recommending you to the building inspector who asked for the u values and shall definitely be using your service again.

Gary Dawes,
Bluecourt Group

Thank you very much for your prompt response in helping me work out the U value calculations for various windows I am installing. As you know I was under pressure to get these calculations as quick as possible, and you delivered as you promised. Great service with great customer care. Thank you!

Gareth Stone,

Have used this service on a number of occasions. First Class service. Very cheap compared to others as well. Never had a problem getting certificates accepted by building control.

Ferrier Slight,
R.F Slight Joinery Ltd


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