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The standard assessment procedure (SAP)

The approved method for calculating and comparing the energy and environmental performance of a domestic dwelling is defined by The Government’s Standard Assessment Procedure for Energy Rating of Dwellings. SAP 2012 is the latest revision of this document which came into use for compliance with Part L of the Building Regulations, supporting the 2013 amendment.

All new build dwellings and some existing dwellings or conversions require SAP certification upon completion. At Sound Solution Consultants (SSC) we are able provide SAP residential services through a trusted, third-party assessor for:

  • New Dwellings – Part L1A
  • Existing dwellings or buildings converted to dwellings and over glazed extensions – Part L1B

The process involves several calculations which relies upon suitable information being supplied to us. Amongst other factors, SAP quantifies the energy use per floor area, fuel-cost-based energy efficiency rating and emissions of CO2 for a residential dwelling based on estimates of annual energy consumption.

SAP and EPCs

The energy performance certificate (EPC)

The Energy Performance Certificate (EPC) shows the energy efficiency of a residential building on a scale of A to G, from most to least efficient. The EPC is necessary to satisfy Building Control bodies that the proposed or existing dwelling meets Building Regulations performance standards for the conservation of fuel and power.

An Energy Performance Certificate (EPC) must be produced every time a new home is constructed, sold or rented. For new build properties, Building Control Bodies will only issue a completion certificate once a suitable EPC has been produced.

The EPC can only be produced by a suitably qualified and accredited energy expert. At SSC we are only able provide SAP residential services through a trusted, third-party energy assessor.

Why work with us?

  • Established 2004
  • Professional & Experienced Consultants
  • Competitive Pricing & High-Quality Services
  • Next Day Certificate on Sound Testing Available*
  • Free Advice for Sound Test Failures**
  • Quick Turnaround on Material Deliveries
  • UKAS Accredited
  • Nationwide Service
  • Members of the Institute of Acoustics (IOA)
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* Reports or test results will not be released until payment has been received. Client to request in advance of where the same or next day results are required.** Excludes written advice or revisits.

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What our clients say

Also want to say how great the guys were on Friday; on time, polite, professional, efficient in their work and very friendly. All in all, everyone at Sound Solution has been spot on in their approach, efficiency and service. As a customer it is both refreshing and welcome! Long may it continue.

Richmond Resident

I spoke to you last Friday, Thank you very much for your advice and spending your valuable time. I am pleased with your quality because you are not a person who crushes the client with making things up for business, you are a person who looks after clients well ethical manner by giving correct and best possible advice even it does not earn financial value for you. I wish you wealthy and health better successful future ahead.


I just wanted to say a huge thank you to you and your team for all the extra help you have given me in dealing with my rather sensitive issue of noise transmission to my downstairs neighbour. It has been invaluable. In recognition, I have made a £50 donation to the charity: Action on Hearing Loss.

Jodi Riches - Client

Have worked with Sound Solution for the last 7 years and have found them to be very professional and excellent at their work. Always happy to provide me with advice pre and post purchasing new buildings and during development projects. We have worked on various scale of projects and so far have found nothing that phases them. The reports are well written, clear and easy to follow. A great asset to our extended team.

Sanjeev Bhamm, Pelham Associates

We are delighted to work with SCC Ltd in resolving the ever more complex requirements for careful acoustic design. Their knowledge coupled with a helpful approach assists us in delivering tailored solutions which fit within our design constraints.

Chris Parsons, Parsons Whittley

We have been working with Sound Solutions for a few years now, as they offer a professional and consistent service. They are always happy to respond to site-based questions and are quick to reply to emails and phone calls. It is reassuring to our clients that they provide both the specification prior to construction and test on completion.

Ben Harvey - Architect, Liam Russell Architects

We have worked with Mark and the team at Sound Solutions for many years and have always been very happy with their professional service and first-rate advice. I have personally recommended them to many other clients.