Book a design survey now!

Thinking about joining the renewable heat network? Book a no obligation, remote design-survey to discuss how your home can connect to the network, and where your Heat Interface Unit could be located.

An engineer will discuss the specifics of your home in a 15 minute remote design-survey session via Zoom (this software is available to download here).

Complete the form below to book

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For more information on the remote design-survey, please review the following. If you have any further questions, get in touch via

About the survey

Due to the recent increase in covid-19 cases, we will do household surveys remotely via Zoom.


This is to protect you and the project team and ensure that we get all the information we need to finalise the heat network design.

The Zoom should last about 15 minutes.

A qualified engineer from the project engineering lead, Bouygues Energy & Services will carry out the design-survey.

No – the survey will assess how to connect your home to the scheme, and anything you might need to change inside your home, if you do decide to go ahead.

What access or preparation is required?

We may need to survey your property externally, to assess your current heating system and preferred route from the street to your HIU.


We will ask your permission for access and to take photographs in advance, in case we do subsequently want to access your property externally.

Before the remote design-survey, we are asking that you have some information ready about your current heating system;

  1. Boiler make and model
  2. kW rating of boiler (or equivalent – e.g. BHU)
  3. Consider whether you want the HIU to be installed where your boiler is now, or not.
  4. Consider how the pipework from the heat network (in the street) could be laid to your property, to connect the HIU.


The engineer will discuss this information with you, don’t worry if you haven’t been able to find all boiler details before the survey session.

Why is the survey required?

The purpose of the survey is to discuss and agree the location of the HIU and the pipework within your property.


We will also assess if any changes are required to your heating system to make it compatible with the new heat network.

  • Confirmation that your house is able to connect to the heat network.
  • Agree location of the HIU.
  • Agree route to the HIU from the network.

Information on your connection design will be shared with Cambridgeshire County Council’s team (CCC). They will prepare a connection offer and next steps to joining the network, which you will receive by December 2020.

Yes – we need some more detail on your system, and we want to agree with you where to locate key equipment (HIU and pipework).


Yes – you are free to have another person present during the survey if you wish and it is safe from a social-distancing perspective.

All our surveyors are from Bouygues Energy & Services, our technical advisors on the project. They will have Bouygues ID and apparel.

Who should I contact if…

In the first instance please use the links in the booking confirmation to reschedule. 24 hours’ notice is required to rearrange.

Please call 0207 0450480 and ask to speak to the Swaffham Prior team.

If you cannot reschedule through the web, please call 0207 0450480 and ask to speak to the Swaffham Prior team.

Please call 0207 0450480 and ask to speak to the Swaffham Prior team.