Guiding you through building regulation compliance

We know that navigating your way through building regulation compliance can be a costly process. At Purple Energy our experienced building air tightness testers, SAP/SBEM assessment team and acoustic technicians can guide you through building regulations, ensuring you receive the relevant documentation on time.  

In order to pass building regulation compliance certain requirements are needed. For all new build constructions, domestic and commercial an air tightness test is needed. This requirement makes up part L of building compliance. Before this test can be carried out a SAP assessment (Domestic) or SBEM assessment (Commercial) will need to be conducted. These can all be completed at an affordable cost in house by our experienced team members. 

Whether your looking for SAP/SBEM assessments, sound insulation testing or building air tightness testing, Purple Energy can ensure that all our clients receive a fully comprehensive and cost effective service for Yorkshire, Greater Manchester, The Midlands and London


As long time members of ATTMA you can rest assured that our team will provide all the guidance you need to smoothly pass your building regulation compliance. 


"We have worked with Purple Energy on a number of Jobs ranging from small domestic builds to large commercial dwellings and  have always received an excellent service and a fast turn around period. I would definitely recommend Purple Energy to provide high quality Air Tightness Testing at affordable rates. We will continue using their services in the future."

James Crosthwaite - Urban Kitchens Interiors 

Nationwide Services


Registered members of the Air Tightness Testing & Measurement Association (ATTMA). 


All of our engineers are CSCS certified.


Providing you with the relevant certification to pass part L Air Tightness Testing building regulations.


We guarantee that all tests will be completed within 3 working days of the booking.

About us

We take immense pride as a company knowing that we provide our clients with a bespoke and personal experience from start to finish. With offices located in Sheffield and London Purple Energy are able to offer a nationwide service whilst maintaining cost effective solutions to help you pass building regulation compliance on time.  Our expanding team of experienced SAP assessors, air tightness testing engineers and acousticians are here to provide you with everything you need to know about your development. Just speak to one of our team members and we can answer any of your questions. We specialise in passing building compliance.