Do You Need a Home Energy Assessment for External Wall Insulation?
External Wall Insulation

Do You Need a Home Energy Assessment for External Wall Insulation?

Yes — a Home Energy Assessment is required before External Wall Insulation can be grant-supported in Ireland. This blog explains why the assessment is mandatory, how it protects your home, and how Churchfield Home Services uses it to confirm suitability, costs, and SEAI One Stop Shop grant eligibility before any work begins.
Published on 06 February 2026 : Updated 05 February • 4 minute read

The Short Answer: Yes, an Assessment Is Required


If you are planning External Wall Insulation in Ireland and want to access SEAI grant support, a Home Energy Assessment (HEA) is not optional — it is required.

External Wall Insulation is treated as a major fabric upgrade. Because it effectively wraps your home, SEAI rules require it to be assessed and planned properly before any work begins. At Churchfield Home Services, every External Wall Insulation project starts with this assessment step.

Why External Wall Insulation Can’t Be Done Without an Assessment


External Wall Insulation changes how heat and moisture move through your home. If it is installed without proper planning, it can lead to issues such as condensation, ventilation imbalance, or underperformance.

A Home Energy Assessment ensures:
  • External Wall Insulation is actually suitable for your home
  • The correct insulation thickness and system are specified
  • Ventilation and heating are considered alongside the insulation
  • The upgrade meets SEAI technical requirements

This protects both your home and your investment.

How the Home Energy Assessment Fits into the One Stop Shop


External Wall Insulation is supported through the Sustainable Energy Authority of Ireland (SEAI) One Stop Shop Home Energy Upgrade pathway.

Under this model, the Home Energy Assessment:
  • Is the first step in the process
  • Determines which upgrades are appropriate
  • Confirms how grants apply
  • Sets out the correct order of works

As a Registered SEAI One Stop Shop, Churchfield Home Services manages this entire process for you.

What the Assessment Looks at for External Wall Insulation


During a Home Energy Assessment carried out through Churchfield Home Services, we look beyond surface-level details.

The assessment reviews your home’s construction type, current insulation levels, heat loss patterns, ventilation, and long-term upgrade potential. This allows us to confirm whether External Wall Insulation — often called a home “wrap” — is the right solution, or whether another approach would deliver better results.

Can You Skip the Assessment and Still Get the Grant?


No. External Wall Insulation is not a standalone grant, and SEAI grant support is not available without a Home Energy Assessment.

Without the assessment:

  • Grants cannot be approved
  • Costs cannot be confirmed accurately
  • The upgrade cannot proceed under the One Stop Shop

Any installer offering grant-supported External Wall Insulation without an assessment is not following the correct process.

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What Happens After the Assessment?


Once your Home Energy Assessment is complete, you receive:
  • A clear explanation of whether External Wall Insulation is suitable
  • Confirmation of which grants may apply
  • A structured upgrade plan
  • Clear next steps

There is no obligation to proceed with works. The assessment is about giving you clarity before making decisions.

What Happens Next?


If you are considering External Wall Insulation, the correct next step is a Home Energy Assessment.

Through Churchfield Home Services, this gives you confidence that External Wall Insulation is suitable for your home, correctly planned, and supported through the SEAI One Stop Shop. From there, you decide if and when you want to move forward.

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Tags
  • External Wall Insulation
  • Deep Retrofit Services
  • Deep Retrofit Project
  • Retrofit One Stop Shop
  • Home Energy Assessment
  • Home Energy Assessment Calculator
  • External Wall Insulation Design
Author
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Mary Hilda Hurley, Retrofit Expert
Published on 06 February 2026: Updated 05 February • 4 minute read
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D1 → A3, massive increase in comfort & over 70% reduction in energy bills!

John and Brenda wanted a warmer, more efficient home as they looked ahead to retirement.

“For me it was more about the cost… Brenda was more about the heat. We brought both of our reasons together and found Churchfield. Churchfield were so helpful in every area.” — John Brady
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