Office: Mon–Fri 9:00–17:00 · Sat 9:00–12:30
48hr SAP Fast-Track 07866153540 · enquiry@eacsouthwest.co.uk
EAC South West Energy Assessment Consultancy
35+ years in the built environment OCDEA accredited Building Regulations expertise

Energy Assessment Consultancy in Cornwall & the South West

SAP/EPC calculations, air tightness testing, U-values, water efficiency and full Building Regulations support — we help you get it right first time, on budget and on time.

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Serving Cornwall (Penzance, Truro, Falmouth, St Ives) and the wider South West.

About EAC South West

EAC South West is an Energy Assessment and Building Regulation Compliance consultancy based in Penzance, Cornwall. We provide SAP energy ratings and Energy Performance Certificates (EPC) for new build and conversion projects, plus supporting services including highly glazed extension assessments, U-value calculations and water efficiency.

With over 25 years in Building Control, we deliver clear, compliant specifications and pragmatic advice that keeps your project moving.

Building Regulations change frequently—get expert guidance early to avoid costly rework.

Our core services

Planning Policy Energy Statements

Clear, policy-aligned energy statements to support planning submissions.

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Air Tightness Testing

CIBSE TM23 Level 1 Pulse testing accepted by Building Control.

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Mechanical Ventilation Testing

Verification and reporting for MEV/MVHR performance and compliance.

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SAP / EPC Energy Rating

Design & As-Built SAP with PEA and EPC lodging.

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PSI and U-Value Calculations

Thermal bridging (psi) and element U-values with practical specs.

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Water Efficiency Calculations

Part G whole-building calculations with fixture schedules.

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Building Regulation Compliance

Detailed working specifications and application support.

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Report of Building

Concise compliance reports summarising key actions.

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Jeremy Downing, Cornwall energy assessor (BSc Hons, FCABE, OCDEA)

Meet the owner

Jeremy Downing BSc (Hons), FCABE, OCDEA

Qualified SAP/EPC assessor with 35+ years in the built environment.

  • OCDEA accredited
  • FCABE Fellow
  • SAP & EPC
  • Building Regulations
35+years’ experience
25+years Building Control
9years Service Manager

Background

  • On Construction Domestic Energy Assessor for new build & conversions.
  • 25+ years Building Control (Dorset & Cornwall), 9 years as Manager (Cornwall Council).
  • Led a multi-disciplinary team delivering energy efficiency & sustainability.
  • Former Site Engineer and Trades Foreman.
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Why choose EAC South West

  • Unrivalled Building Regulations knowledge and practical site experience
  • 48-hour SAP fast-track option
  • Multi-product and multi-unit discounts
  • Guaranteed pass approach with pragmatic, affordable solutions

Serving Cornwall and the wider South West.

Client reviews

“I have within the past few months used the services of EAC South West and found them to be very courteous, efficient, knowledgeable and prompt with all communications. I would certainly have no hesitation in using them again.”
David James Marazion, Cornwall

Common questions

Do you cover all of Cornwall?

Yes—Penzance, St Ives, Truro, Falmouth and surrounding areas, plus the wider South West.

Can you help with Building Regulations?

Yes. We prepare specifications and make applications on your behalf.

Do you offer fast-track SAP?

We provide a 48-hour SAP fast-track option—ask when you enquire.