Our Standards | Legacy Business Engineers

Our Standards & Quality Commitment

Every number we publish is deterministic, traceable, and independently verifiable. Here's how we ensure that.

We use AI-assisted engineering tools to deliver faster, more rigorous assessments for our clients. But speed means nothing without accuracy. This page explains the standards we hold ourselves to — and how we ensure every calculation, every report, and every recommendation is defensible.

Our Priority Hierarchy

Every decision we make follows this order. A cost-effective solution that compromises safety or compliance is never recommended.

1Safety
2Compliance
3Functionality
4Cost-effectiveness

Deterministic Calculations

Same inputs always produce the same outputs. Our tools use transparent, published formulas — not AI-generated opinions. Every formula is visible and verifiable.

Full Audit Trail

Every number in a report traces back to a specific calculation, input value, and data source. Our tool chain passes data through structured exports — nothing is manually typed into reports.

Standards-Referenced

All calculations reference published standards — CIBSE, SEAI, IS 10101, TGD Part L, CRREM — with specific clauses and versions cited. You can verify our sources.

Honest Reporting

We don't overstate savings or suppress unfavourable results. Budget estimates are stated as ±20%. Indicative outputs are labelled as such. Sensitivity analysis includes worst-case scenarios.

Standards We Design To

All AIMEP outputs are designed, calculated, and presented in accordance with Irish and EU standards.

DomainStandard
Electrical InstallationsIS 10101:2020 & BS 7671
Fire Detection & Emergency LightingIS 3218, IS 3217, BS 5266
Building Energy PerformanceTGD Part L (2021), TGD Part F
Nearly Zero Energy BuildingsNZEB / SEAI Methodology
Refrigerant & F-Gas ComplianceEU 2024/573
EV Charging InfrastructureSI 393/2021
Load Assessment & BenchmarksCIBSE Guides A, G, M, TM46
Carbon Risk PathwaysCRREM 1.5°C (2025–2050)
EU Sustainability TaxonomyEU Taxonomy Technical Screening Criteria
Cost BenchmarkingSCSI / BCIS Elemental Rates

How We Use AI — Transparently

We use Anthropic's Claude as a development and productivity tool. We're open about this because we believe it's a strength, not a liability. Our AI-augmented workflow enables more thorough testing, more rigorous cross-checking, and more consistent quality than manual methods alone.

The critical boundary: when you click "Calculate" in our tools, the result comes from a fixed algorithm running against published benchmark data — not an AI model. The output is deterministic and reproducible.

Technology HandlesOur Engineers Handle
Executing deterministic formulasSelecting appropriate inputs and assumptions
Formatting outputs into professional reportsVerifying outputs against engineering judgment
Flagging validation failures automaticallyDeciding whether to accept, investigate, or override
Generating educational explanationsEnsuring technical accuracy of all content
Running quality assurance checksReviewing and signing every client deliverable

Every report is reviewed and signed by a Chartered Engineer with Professional Indemnity Insurance. AI assists — it does not replace professional judgment.

What We State vs What We Don't Claim

We believe honesty about limitations builds more trust than overpromising. Here's exactly where our assessments stand:

What We StateWhat We Don't Claim
Desktop assessment based on available dataSubstitute for site inspection
Cost estimates ±15% to ±40% depending on dataTender-accurate pricing
Indicative BER/Part L check (simplified method)Formal SBEM/DSM compliance certification
CIBSE Guide M design life benchmarksActual condition of specific equipment
Published ESB connection categories & timelinesGuaranteed ESB network capacity at your location
CRREM-aligned carbon pathwaysCertified carbon accounting or offsetting

Quality Assurance

Every tool undergoes automated testing before deployment. Every report undergoes numerical audit and peer review before issue. Specifically:

Automated testing: Pre-defined test scenarios (we call them "golden tests") run against every tool. If any test fails, the tool cannot be deployed.

Physical plausibility: Our tools include built-in checks — CO2 emissions can't fall below physical limits, energy costs must reflect real market rates, BER ratings must be consistent with energy use.

Peer review: Before any report reaches a client, every key number is cross-checked against the calculation that produced it. We check data sources, assumptions, limitations, and professional disclaimers.

Professional & Ethical Standards

All work is carried out in accordance with the Engineers Ireland Code of Ethics and CIBSE Code of Professional Conduct. We maintain Professional Indemnity Insurance covering all AIMEP service lines.

Independence: We provide independent MEP consulting. We don't sell equipment, receive commissions from suppliers, or recommend solutions that benefit us financially beyond our professional fee.

Scope: We only accept work within our competence. Our tools are for preliminary design and assessment — we refer clients to specialist consultants (structural, fire, acoustic, planning) where required, and we clearly state what our assessments do and do not cover.

Conflict of interest: If we have a commercial interest in the outcome of an assessment (e.g., potential appointment for detailed design on the same project), we disclose this upfront. The assessment methodology does not change — same tools, same benchmarks, same standards.

Data Privacy

Our engineering tools run client-side in your browser. No project data is transmitted to our servers during calculations. JSON exports are saved locally on your device. Our free tools contain no analytics, no cookies, and no tracking.

We comply with the General Data Protection Regulation (GDPR) as enacted under the Data Protection Acts 2018. Project files are retained for 7 years in line with professional indemnity requirements, after which they are securely deleted.

You can request access to, correction of, or deletion of your data at any time by contacting [email protected].

Our full Privacy Policy is available at legacybe.ie/privacy.

Our Commitment to You

  • Every number in your report traces to a verified calculation
  • All data sources are cited — you can check our references
  • Assumptions are stated explicitly — nothing is hidden
  • Limitations are honest — we tell you what we don't know
  • Indicative outputs are clearly labelled — we don't overstate certainty
  • Savings are calculated properly — sequential, not additive
  • Worst-case scenarios are included — we don't just show the good news
  • A Chartered Engineer reviews and signs every deliverable

Key Data Sources We Reference

CIBSE TM46 (energy benchmarks) · SEAI Conversion Factors (CO2 emissions) · CRREM v2.0 (carbon risk pathways) · IS 10101:2020 (electrical installations) · TGD Part L 2021 (building energy performance) · SCSI Tender Price Index (cost benchmarks) · CIBSE Guide M (equipment design lives) · CIBSE Guide A (environmental design)

We maintain a full Data Sources Register with version numbers and update schedules. The version of each data source is embedded in every tool and report we issue.

The full AIMEP Quality Management System (v1.0, February 2026) is available on request.
Contact [email protected] for a copy.

Want to see these standards in action? View our sample reports or try a free tool.

Explore Free Tools

Or get in touch to discuss your project.