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Building Performance Surveys
For homeowners and landlords who want to understand comfort, ventilation, damp risk, energy use or retrofit potential before committing to works.
Building performance · Retrofit · EPC advice
Independent building performance surveys, retrofit assessments and EPC advice for homeowners, landlords and property professionals across Essex.

An Essex terrace — typical of the buildings we assess.
Why Efficiency Smart
Efficiency Smart does not install measures or sell products. Advice is independent and based on the building, the evidence available and your goals.
What we do
From a single building performance survey to a whole-house PAS 2035 retrofit — each project starts with a proper look at the fabric.
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For homeowners and landlords who want to understand comfort, ventilation, damp risk, energy use or retrofit potential before committing to works.
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PAS 2035 retrofit assessments for funded schemes, housing providers, coordinators and retrofit projects.
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EPCs for existing homes, traditional buildings and post-retrofit projects. Standard EPC bookings are handled separately through EPC Hub.
How it works
A short message with what you're trying to understand or achieve.
On-site visit where needed, or a desktop review of the recorded data.
Clear written advice or assessment outputs you can act on — with no upsell.
Get in touch
A short message is enough to get started. We reply personally, usually within one working day — no bots, no chase-up calls.