SAP Calculations for Extensions

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Are you extending your home and need to comply with Part L Building Regulations? Assessment Hive offer fast and affordable home SAP calculations for extensions across the UK, ensuring your project meets energy performance standards.

What Are SAP Calculations for Extensions?

SAP (Standard Assessment Procedure) calculations measure the energy efficiency of residential properties. For extensions with glazing over 25% of the new floor area, Building Control often requires SAP calculations to ensure the project meets energy standards. Failing to provide this can delay your build and result in non-compliance.

How Is Compliance with Part L Demonstrated?

You can demonstrate compliance with Part L using several methods; however, the most common SAP calculations for extensions are as follows:

  • Area-Weighted U-Value Calculation: Balancing overall thermal performance if some areas don’t meet individual U-value targets.
  • Full SAP Calculation: This is typically required for large-glazed extensions and the go-to if you cannot demonstrate compliance under the Area Weighted U Value Calculation. This method offers more flexibility.

An experienced SAP assessor will guide you on the best approach based on your project’s specifications.

Why Choose Our SAP Calculation Services?

  • Experienced Assessors: Qualified professionals specializing in SAP calculations for residential extensions.
  • Fast Turnaround Times: We deliver reports in as little as 48 hours.
  • Compliance Guaranteed: All reports meet Part L regulations and are accepted by Building Control.
  • Cost-Effective Pricing: Transparent, competitive rates with no hidden fees.

Our Process – Simple & Stress-Free

  • Free Consultation: Share your project details with our experts.
  • Energy Performance Analysis: We assess your project’s thermal performance.
  • SAP Calculation Report: Receive a detailed report for Building Control submission.
  • Revisions & Support: We help address any queries from Building Control.

FAQs – Home SAP Calculations for Extensions in the UK

1. Do all extensions require SAP calculations?

No, typically, they are required if your extension glazing exceeds 25% of the new floor area or introduces new thermal elements like walls, roofs, and windows.

2. How long does the process take?

We offer a fast turnaround, with most reports delivered within 2-5 working days depending on the complexity of the project.

3. How much do SAP calculations cost?

Our pricing, when it comes to SAP calculations for extensions (as well as other areas of work), is competitive and depends on the size and complexity of your project. Contact us for a custom quote.

If you have any further questions, please feel free to read our Extensions FAQs page by clicking here.

Contact Us for your reports

Avoid unnecessary delays and get your reports done quickly and correctly. Our team is ready to help you meet compliance requirements and get your project approved.

📞 Call us on 020 7183 3240
📧 Email us at info@assessmenthive.co.uk
📝 Request Instant Quote → Click Here

We are ready to assist today

Competitive

Our pricing is extremely competitive, we look for the most cost effective solution to benefit you.

Certified

We only have fully qualified and accredited Energy Assessor that will be assigned to you.

Reliable

Our service is personal and reliable to help you achieve the best results in a speedy fashion.

Risk Free

Here at Assessment Hive, we believe in being open and transparent in the way we do business.

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