ESOS Data Readiness

ESOS data readiness review

ESOS Phase 4 is coming.
Will your energy data hold up?

Our ESOS Phase 4 data readiness review gives you a practical view of whether your current energy data is likely to stand up to assessor scrutiny, where the gaps are, and what closing them would cost.
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£750 fixed-price review

1 week
Supply list · existing energy data · gap review · costed next steps
Send us
Your supply list and whatever energy data you currently hold.
We return
A short, plain-English report showing where your data stands.
Best for
Companies that want to prepare the data layer before appointing, or fully briefing, their ESOS lead assessor.
Pricing
£750 covers up to 10 buildings. For larger estates, please speak to our sales team for a tailored review.

Know where you stand

Identify which sites have adequate coverage, which do not, and where interval data is missing, too coarse or unreliable.

Avoid the scramble

Find visibility gaps early, including landlord supplies, unclear meter boundaries and missing transport or site-level data.

Budget the fix

Get a realistic cost to close each data gap, so you can plan now rather than under deadline pressure.

What we do

The groundwork before ESOS becomes urgent.

The ESOS Phase 4 qualification date is 31 December 2026, with notification of compliance due by 5 December 2027. Proposed Phase 4 changes include removing Display Energy Certificates and Green Deal Assessments as compliance routes, so the quality of the underlying energy data is likely to matter more than it did last time.
ES
Fixed-price review

ESOS Data Readiness Review

A practical review of whether your energy data is ready for assessor scrutiny.

Here is the pattern we see constantly. A company appoints a lead assessor, the assessor asks for twelve months of energy data across the estate, and that is the moment everyone discovers the meter coverage is patchy, half the sites are on landlord supplies nobody has visibility of, and the transport energy was never captured at all.

What should have been a straightforward compliance exercise turns into a scramble. This review exists so that conversation never happens to you.

What we check
Site coverage, supply visibility, interval data quality, missing data, unclear boundaries and practical evidence gaps.
What you get
A short report showing which data is ready, which data is weak, what is missing and what it would cost to close each gap.
What we do not do
We do not carry out the formal ESOS assessment, and we do not advise on qualification or compliance routes. That is your lead assessor’s job. We review the energy data layer so their engagement is faster and cleaner.
Fixed price
The £750 fixed price covers up to 10 buildings. For larger estates, please speak to our sales team for a tailored review.
Book your review
£750 fixed for up to 10 buildings. One week turnaround from receiving your information.

Why Monitor Hut?

Energy data infrastructure is all we do. We install metering, run data pipelines and manage ESG reporting for institutional property portfolios, manufacturers and hospitality groups across the UK. We know what assessors ask for because we build the systems that produce it.

Useful next steps

Not ready to book the review yet? Start with the free ESOS Phase 4 checker, explore our wider compliance resources, or read how missing granularity and patchy records can turn ESOS into a last-minute data scramble.
Use the free ESOS checker
View compliance resources
Read the ESOS data story

Common questions

What the ESOS data readiness review covers.

Is this a formal ESOS assessment?

No. This is a data readiness review. We do not advise on qualification or compliance routes, and we do not replace your ESOS lead assessor.

What do we need to send?

Send your supply list and whatever energy data you currently hold. We review coverage, visibility, data quality and practical gaps.

What do we get back?

You receive a short, plain-English report showing where your data is ready, where it is weak, what is missing and what it would cost to fix.

Who is this useful for?

It is useful for companies preparing for ESOS Phase 4 that want to understand their energy data gaps before the assessor process becomes urgent.

How many buildings are included?

The £750 fixed price covers up to 10 buildings. For larger estates, please speak to our sales team so we can confirm the right scope and price.

Find out where you stand before the year runs away.

If your data is in good shape, you will know that for certain. If it is not, you will know what needs fixing and what to budget before ESOS Phase 4 becomes a deadline-driven data chase.
Book your review
Start with the free checker