SAPgen 0333 567 9010

Elmhurst Accredited SAP Assessor

SAP Calculations for New Builds, Extensions & Conversions

Fixed price SAP calculations for Part L compliance. Fast turnaround. Reports accepted by Building Control nationwide.

  • ✓ New builds, conversions & extensions
  • ✓ Design SAP, As-Built SAP & EPC
  • ✓ Results typically in 2-4 working days
  • ✓ Practical advice if your design doesn't pass first time

Also available: Part O Overheating Assessments & Thermal Bridging Calculations

Work directly with a qualified SAP assessor, not a call centre.

Get a Free Quote

Your SAP assessor will call to confirm your project details and provide a fixed price quote

No obligation. We'll be in touch within a few hours.

Elmhurst Accredited PI Insured 2-4 Day Turnaround Fixed Pricing

How Much Do SAP Calculations Cost?

The cost of a SAP calculation depends on the size of the property, the number of dwellings on site and whether you need a Design SAP, As-Built SAP or both. Most single-dwelling projects fall between £120 and £300 per stage.

Smaller properties such as one-bedroom flats and extensions sit at the lower end, while larger four or five-bedroom houses cost more due to the additional detail involved. Multi-plot developments benefit from reduced per-unit pricing, so the more dwellings you have the lower the cost per plot.

Every quote is fixed price with no hidden fees. Send us your project details and we will confirm exactly what you need and what it will cost before you commit.

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Common Questions

What information will you need from me?
Floor plans, elevations, sections, and a basic specification (insulation, windows, heating, ventilation). We'll walk you through it on the call - if anything's missing, we'll tell you exactly what we need.
Do I need a Design SAP and an As Built SAP?
Usually yes. Design SAP is for Building Control before work starts. As Built SAP is for sign-off at completion and generates the EPC. Some projects only need one stage - we'll advise.
What if my design doesn't pass?
Common on first pass. We'll tell you exactly what to change and rank fixes by cost and impact, so you're not guessing or over-specifying.
Will Building Control accept your reports?
Yes. All reports are produced by an Elmhurst-accredited OCDEA and lodged on the government register. Accepted by Building Control nationwide.

Ready to get your SAP calculations sorted?

Leave your details and your SAP assessor will get back to you with a fixed price quote.

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