Why Price Alone Can Be Misleading
When people look for a Building Energy Rating, price is often the first thing they compare. That’s understandable. A BER is a required document, and on the surface, many of them appear similar.
But in practice, the cheapest BER available is often not the cheapest option in the long run.
Not because anyone is doing anything incorrectly, but because at very low fees, there simply isn’t enough room for the level of engagement that often makes the real difference.
A BER done properly involves more than a site visit and a software submission. It requires an understanding of the building, how it has been upgraded (or will be upgraded), and how the information entered reflects reality as accurately as possible. That’s particularly important when a BER forms part of a renovation or grant-supported project.
BERs Within Renovation and Grant Projects
In our work, BERs are usually part of a wider renovation process. We’re often the first technical professional to sit down with a homeowner and talk through how they intend to upgrade their property, what matters most to them, and how best to approach SEAI grants. Those early conversations shape decisions that affect the entire project.
Where very low fees come into play, that engagement is often the first thing to disappear. The BER may still be valid, but it’s more likely to be carried out quickly, with limited opportunity to review drawings, clarify specifications, or seek supporting information that could improve accuracy and outcomes.
That’s where the cost can begin to appear later.
Where Risk and Lost Potential Can Emerge
One of the biggest risks shows up around grant compliance. Grant issues rarely arise from one obvious error. More often, they stem from small technical details that weren’t checked early enough. These can include ensuring backstop U-values are met for floors, walls and roofs, confirming that the overall average U-values for windows and doors fall below required thresholds, verifying Appendix Q eligibility and ducting requirements, meeting Heat Loss Indicator limits for heat pump systems, and ensuring minimum seasonal efficiencies are achieved within DEAP, for example, 300% for space heating and 160% for water heating on air-to-water systems.
These are not problems that usually announce themselves at the end of a project. They are issues that experienced assessors tend to anticipate early and, where necessary, flag during post-works assessments so they can be resolved before documentation is resubmitted.
Beyond grants, a BER increasingly influences renovation decisions, system sizing, and long-term performance. It also plays a growing role in how properties are perceived by buyers, particularly for renovated homes where energy performance is now a key differentiator. A BER that hasn’t been optimised using available data may quietly under-represent the true performance of the building, and that lost potential often goes unnoticed.
A Structural Issue with Fees and Time
The underlying issue isn’t the quality of assessors. It’s the structure of fees that don’t allow enough time. When time is squeezed, pressure is felt by everyone involved, assessors, homeowners, contractors, and one-stop shops alike and risk inevitably increases.
A BER built on accurate data, early advice, and proper follow-up can support better decisions and smoother outcomes. When those elements aren’t possible, the saving made at the start can quietly reappear later in ways that are far more expensive.
“The cheapest BER often costs more later because missed potential is far more expensive than a higher fee at the start.”