About our u value Certificates
We calculate the accurate u value of window or doors using details you suppy.
We issue you (By E Mail) a three page certificate, with a unique serial number. This should be sufficient proof as to the U Value of your items.
Our certificates have already been accepted by council planning departments. However we cannot guarantee that it will be accepted by every such department in the United Kingdom.
- Three Page Certificate
- Cover sheet with installation address
- Details used in Calculation
- The unique serial number
The certificate shows the Location where the Window or Door is fitted.
No Membership to u-value-calculator.com is required. Our calculator is suitable for all makes/brand of product.
Each Certificate costs only £35.
This service is available to anyone, using any type of frame or make of glass for their windows or doors.
You Submit the Details
Our process starts with you sending us the details:
- Send dimensions of the window or door
- Specify type of glass used
- Pay the required fee - £35
We Calculate the u-value
We calculate the u-value:
- Hardwood or Softwood
- Double or Triple Glazing
- Conforming to 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