SAP Calculation for your Extension - Get your FREE Quote today

Just enter your details and upload your plans to get your quote.


Tony Difazio
Tony Difazio
Read More
Saved us over £5k as didn't require solar that was advised by another SAP assessor.
Rafal Zdrodowski
Rafal Zdrodowski
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Excellent service, very helpful and speedy! Highly recommended
Simon Orr
Simon Orr
Managing Director
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Giovanni and his team delivered a first class service to our firm over three separate projects.

Do You Need A SAP Calculation for your extension To Satisfy Building Control?

Do you need a SAP calculation for your extension or conservatory knock through? These can also be known as:

  • Heat loss calculations
  • Thermal calculations

to name but a few. We’re here to help you get it sorted. 

Having performed thousands of SAP calculations for extensions we can guarantee you compliance with government regulations so you can get on with your day.

Doing a SAP calculation for your extension can be different for new builds or conversions. In that, we are also adhering to Part L1B of the building regulations.

We will assess your extension from the plans and specifications you or your architect provided us and suggest a number of measures to ensure that you pass the first time.

We’ll need some information from you first. This may include:

  • Floor Plans
  • Construction Specification of walls, roofs and floors for your extension
  • Openings
  • Primary & Secondary Heating systems
  • Renewable Technology (if any)

As much information as you provide at this stage ensures an accurate quote for your extension. Simply click the button below to get your quote today and our expert team will be in touch.

sap calculations for extensions

Enter Your Details Below For Your Same Day Quote