Home Energy Assessment

Before-and-After: How Home Energy Upgrades Transformed These Irish Homes

Home energy upgrades can dramatically improve comfort, efficiency and how a home feels day to day. This guide looks at real before-and-after changes seen in Irish homes and explains how starting with a Home Energy Assessment helps deliver upgrades that are planned properly and perform as expected.

Published on 03 February 2026 : Updated 28 January • 5 minute read

Before: common issues in Irish homes

Many Irish homes begin their upgrade journey with similar challenges. Rooms can feel cold or unevenly heated, energy bills may be high for the level of comfort achieved, and heating systems often work harder than they need to.

In older homes especially, heat loss through walls, roofs and floors is common. Draughts, poor ventilation and outdated systems can all contribute to homes feeling difficult and expensive to keep warm. Before upgrades, homeowners often know something is wrong — but not exactly what or where to start.

This uncertainty is where many upgrade journeys either stall or go off track.

Starting with understanding, not assumptions

At Churchfield Home Services, before-and-after transformations always begin with a Home Energy Assessment. Rather than jumping straight to individual measures, the assessment looks at how the entire home performs.

This process identifies where heat is being lost, how systems interact, and which improvements will have the greatest impact. It replaces assumptions with evidence and gives homeowners a clear picture of what their home actually needs.

Only once this understanding is in place does the upgrade journey begin.

During: upgrades carried out in the right order

During the upgrade phase, improvements are carried out in a sequence that supports performance. This might involve upgrading insulation first to reduce heat loss, followed by heating and ventilation improvements that work with the upgraded building fabric.

Because the work is planned as a whole, each measure supports the next. This avoids situations where systems are oversized, underperform, or need to be revisited later.

For homeowners, this means less disruption, clearer timelines, and confidence that work is being done for the right reasons.

After: noticeable changes in comfort and efficiency

After upgrades, the difference is often felt immediately. Homes retain heat more evenly, cold spots are reduced, and rooms feel more comfortable throughout the day.

Energy use typically becomes more efficient because less heat is being lost and systems no longer need to work as hard. For many homeowners, this results in more predictable energy bills and a home that feels easier to live in year-round.

Just as importantly, homeowners understand why the home now performs better — because the journey started with clarity.

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Long-term value beyond the upgrade

Before-and-after improvements are not only about immediate comfort. Homes that are upgraded using a planned, whole-home approach are better positioned for the future.

Improved energy performance can support a stronger BER rating, future-proof the home against rising energy costs, and make further upgrades easier if they are ever needed. The transformation is not just visible — it is structural and long-lasting.

What happens next?

If you are considering upgrading your home and want to understand what kind of transformation is realistically possible, a Home Energy Assessment is the right place to begin.

You can book your assessment online or by phone. A qualified assessor will visit your home, complete the survey and BER, and prepare a clear, easy-to-understand report. Once you receive it, you can review the findings in your own time and decide what — if anything — you would like to do next. There is no obligation to proceed beyond the assessment.

Churchfield Home Services carries out Home Energy Assessments across Dublin, Mayo, Galway, Sligo, Roscommon, Kildare, Meath and Wicklow. As a Registered SEAI One Stop Shop, we provide clear guidance from assessment through to upgrade, supporting you at every stage if you choose to move forward.

To get started, visit our website to book your Home Energy Assessment online, or call 0818 011 022 to speak with our team.

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Author

Mary Hilda Hurley, Retrofit Expert

Published on 03 February 2026: Updated 28 January • 5 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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