Apex Home and Energy Surveyors Ltd SAP Calculations

SAP Calculations

Part L of the Building Regulations is now arguably the most crucial thing to get right from the beginning of your project. Email your drawings to us and we will provide you with a quote and talk you through any concerns that you may have. We have over 30 years of experience in doing SAP calculations and are without doubt the right company to get you through this difficult part of the Building Regulations.
Don’t take our word for it, check out our reviews!

The SAP rating depends upon a range of factors that contribute to energy efficiency;-

Material used in the construction; Thermal Insulation of the building fabric; Air leakage ventilation characteristics of the dwelling and ventilation equipment; Efficiency and control of the heating system(s); Solar gains through openings of the dwelling; The fuel used to provide space and water heating, ventilation and lighting; Energy for space cooling if applicable – where the dwelling has a fixed air conditioning system ratings are not affected by the geographical location; Renewable Energy technology

The latest edition of SAP has incorporated the following key changes;-

Climate data has now been extended to allow calculations using regional weather: An allowance for height above sea level is incorporate into external temperature data; CO2 emission factors have been extensively revised; Fuels price and primary energy factors have been revised; The options for heat losses from primary pipe work have been extended; additional thermal bridge details

The rating is not affected by living habits for the occupying household, eg;

Household size and composition; other electrical appliances eg; washing machines; Individual heating patterns and temperatures.

We can provide SAP calculations for:-

  • New build properties

  • Refurbishments & conversions

  • Extensions and highly glazed areas

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It is a requirement to complete and submit the SAP calculations and building regulations compliance report before you start to build. The earlier you consider the SAP calculation and its implications the more likely you are to comply with the building regulations.

Part L is difficult to comply with. We are experts that will listen to your individual needs, providing you with the best solution based upon your requirements.

WHAT OUR CLIENTS SAY...

Harvey Gora

We used Peter at Apex for SAPS calculations and EPC on a 4 flat conversion. The process was all smooth from start to finish and Peter’s expertise was invaluable, he advised us to get an air test done which improved our EPC’s by a grade up. Will recommend him all day long. Thanks Peter!

Ralph Lazar

We are building an extension in London and Building Control told us we needed a SAP survey and report. We found Apex online and Peter was friendly and professional from the start, with immediate response times to our multiple queries. We simply could not be more happy with the service provided and would strongly recommend. If only our architect, contractor, engineer and party wall surveyor were half as efficient!

PD

A great firm to deal with. Helped me get an SAP in my short timescale, great communication. Can't recommend them enough.

Paul Craig

Had an EPC/SAP sorted for me by Peter Yearsley at Apex. Brilliant guy with amazing comms, which is a rarity these days. I would highly recommend his services.

John Kelshaw Architects Limited

I'd just like to say that I couldn't recommend Apex HES highly enough. Peter and Nicola are an excellent team and consistenly provide me with an excellent service as well as my clients. They are the only team I would put forward to a friend or client. They are professional, precise and prompt with their service.

Sam Magar

Had my property EPC, water and SAP carried out with zero fuss the same day with excellent communication.

Jonn Hussain

I can't rate this firm high enough. They provided excellent service, they were efficient, friendly and completed my SAP report without any issues. I dealt with Peter, and he was very helpful and I definitely recommend anyone to use them. I've personally recommended Apex to my friends and family and developers. Thank you very much for your help. And should I need their services again, I will definitely use them.

Nick Titlow

Have used Apex for 3 newbuild properties now (SAP calculations and water efficiency calcs) . Have always found them to provide a prompt service at a reasonable cost. Will continue to use for future projects.

Seanontwitty Gallimore

Turner SAP calculations around very quickly and kept me informed of the progress. Brilliant to deal with!

Sunil Mohan

Peter has been very helpful and professional. He's always available to offer help and today he saved me £180 by doing the right thing for me. Highly recommend him and his company. They don't come across hungry for money instead comes across saving you.

Related Services

We can arrange air pressure testing for new and existing dwellings. Most new properties will require an air-leakage test on completion. We can arrange this with a discount if we provide your SAP calculation.

Thermal Bridging is a massive part to comply and we can advise on the best way to proceed and how to collect the ESSENTIAL site data.

For free advice and a quote please call 01925 555 490.

New Dwellings

Design Draft Sap Calculations are required by building control before you start building.

Drawings for Planning Permission / Building Regulation Approval including design specification are required (see Planning / Building Regulation page). Detailed drawings and specifications are sent to us and are measured up and the data is entered into the SAP program.

We will consult and explain any modifications necessary to comply.

Once the building is completed all data used in the Design SAP will need to be checked and signed off.

Air pressure test result / certificates are needed for lodgement of the EPC.

DESIGN FINAL SAP Calculations are produced

That any assumptions adopted in the design have been achieved.
The boiler / heating details are checked and updated.
AS BUILT DRAFT calculations are produced that incorporate these changes (final chance to make amendments) after checking the AS BUILT FINAL calculations are locked into the SYSTEM – lodging the Energy Performance Certificate

Building Regs reports are generated an EPC is produced and uploaded into the official Register.
Details and notes are retained – occasionally these are externally audited to ensure standards are maintained within the scheme.
See also our page on Part L Building Regulations