Contact us regarding our u-value calculator
Please complete the required details.
We can certainly recommend this service and will come back again if needed! Quick, accurate and hassle free!
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.
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!
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.
Simple 3 Step Process
You Submit the Details
Our process starts with you sending us the details:
- You send the dimensions
- You pay the required fee - £35
We Calculate the u-value
We calculate the u-value:
- Hardwood, Softwood, or Accoya
- Double or Triple Glazing
- Conforms to Part 1 EN ISO 10077
We Send you a certificate
We send you a pdf certificate showing the u-value:
- Details the calculation carried out
- Specifies the u-value
- Has a unique certificate number