SAP Calculations
Greater London
Order online in minutes — no quote needed, no delay.
SAP Calculations Greater London – We provide SAP assessments Greater London, helping homeowners and developers meet compliance for new builds, conversions, and extensions. From the design phase to the as-built stage, our simplified process ensures you meet compliance with Part L of the Building Regulations — while supporting energy efficiency and sustainability targets.
Your Trusted SAP Calculations Greater London Partner
As specialists in SAP assessments Greater London, we support residential and mixed-use projects at every stage of development. Our in-depth knowledge and proven process help you achieve compliance efficiently and with confidence. From early design input to final approval, we deliver clarity, peace of mind, and results you can trust.
We also provide advice on meeting carbon emission targets and reducing energy consumption, helping you stay aligned with evolving building regulations and sustainability goals.
We work closely with homeowners, architects, and developers to simplify the SAP calculation process and accelerate project timelines. With deep expertise in Part L of the Building Regulations, our team helps you avoid delays and keep your project moving forward
Competitive pricing
Fast turnaround
Expert guidance
Hassle-free process

Order Your SAP Assessment Online in Minutes
Skip the back-and-forth quoting process — with Vertex Energy, you can order your SAP calculations Greater London directly online. Upload your plans and project details through our streamlined form, and our team will get to work immediately.
No delays. Just fast, compliant results from a team you can trust.
How It Works
Our SAP Calculations Greater London process is fast, simple, and designed to keep your project on track from start to finish, ensuring full compliance and on-time delivery.
Order Online
Upload your plans and project details through our streamlined form — it just takes a few minutes.
We Assess
Our SAP experts review your project and carry out a thorough assessment with precision.
Get Reports
Receive your final, submission-ready SAP reports — delivered fast, approval-ready
Order Your SAP Calculation Service Online Today
Skip the hassle — upload your plans in minutes and get SAP reports delivered fast by a team you can trust to keep your project moving forward.
Read more about SAP Calculations
What Is an SAP Calculation?
SAP calculations are essential for assessing the energy performance of residential buildings in Greater London. This process produces a Predicted Energy Assessment (PEA) and an Energy Performance Certificate (EPC), demonstrating that your property is compliant with the standards set out in Part L of the Building Regulations on GOV.UK.
The SAP methodology evaluates a building’s energy efficiency, rating it on a scale from 1 to 100+. It estimates energy usage, carbon emissions, and the costs of heating, lighting, and hot water. With an SAP assessment, homeowners and developers can create more sustainable, energy-efficient homes, reducing environmental impact and operational costs.
We offer SAP Calculations Greater London to help you meet compliance smoothly and efficiently.
When Are SAP Calculations Necessary?
SAP calculations are required for new builds, conversions, and certain extensions to demonstrate compliance. They ensure your property meets the carbon emissions and fabric performance standards outlined in Part L of the Building Regulations.
Completing SAP calculations early in the design phase ensures your project meets all necessary efficiency standards. Your building control officer will typically require both the SAP report and EPC to approve your build.
SAP Calculation Stages
An SAP assessment is completed in two key stages:
Design Stage Assessment:
This stage evaluates your building’s projected energy performance during the planning phase to ensure it meets the required standards before construction begins.
As-Built Stage Assessment:
This final stage confirms that the completed building complies with the approved design and energy performance targets.
What We Need to Get Started
A site visit isn’t required for our SAP Calculations Greater London service. Instead, we’ll need your project drawings — including floor plans, elevations, cross-sections, and site plans.
We’ll also need construction specifications, such as materials, insulation levels, windows, and doors, along with details about your heating, hot water, ventilation, and any renewable systems.
Once we’ve received everything, our team will begin your SAP Assessment Greater London right away — helping you stay on schedule. If you’re working to a tight deadline, fast-track options are available upon request.
FAQs About SAP Calculations
Got a question SAP Calculations Greater London? We’ve answered the most common ones.
If you don’t find what you’re looking for, feel free to reach out — our team is ready to help.
How Can I Ensure My SAP Calculation Is Successful?
To give your project the best chance of success, involve a SAP assessor early in the design process. Make sure your drawings are accurate and align with building regulations covering insulation, heating systems, and ventilation. Early involvement helps identify and resolve potential issues before submission.
What Happens If I Fail My SAP?
If your SAP assessment doesn’t pass, your assessor will highlight the areas that fall short and recommend improvements. This could include revising your design or upgrading certain elements to meet compliance standards.
Can I Make Design Changes After the Initial SAP Assessment?
Yes, but major design changes can affect compliance. Always consult your assessor before making updates so they can review the impact and adjust your SAP report accordingly.
How Is a SAP Rating Calculated?
A SAP rating is calculated by evaluating factors such as insulation levels, heating and hot water systems, ventilation, lighting, and the use of renewable technologies. These are modeled together to determine the home’s energy efficiency on a scale from 1 to over 100.
Need SAP Calculations Greater London?
We deliver SAP assessments Greater London, helping homeowners, architects, and developers meet compliance with ease. Our team ensures your project stays on track and aligned with regulations from start to finish.
If you’re searching for SAP calculations near me, we’re here to help wherever your project is located.
Areas We Cover
We cover the following Greater London areas:
Need SAP Calculations in London? Visit our London page
- Tower Hamlets
- Southwark
- City of Westminster
- Newham
- Islington
- Wandsworth
- Lambeth
- Croydon
- Barnet
- Hackney
- Camden
- Ealing
- Brent
- Enfield
- Bromley
- Lewisham
- Redbridge
- Hillingdon
- Haringey
- Greenwich
- Hounslow
- Hammersmith and Fulham
- Waltham Forest
- Havering
- Harrow
- Kensington and Chelsea
- Bexley
- Barking and Dagenham
- Merton
- Sutton
- Richmond upon Thames
- Kingston upon Thames
- City of London
Looking for SAP Calculations in another part of the UK? View all service areas.
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Ready to Get Started? Get Your SAP Calculation Today
Need SAP calculations or an EPC? We make the process simple — with fast turnaround, transparent pricing, and expert guidance every step of the way.