# Energy Audit Cost

> Energy audit costs: £150–£400 for a domestic retrofit assessment, £500–£2,500+ for a commercial energy audit by floor area, more for ESOS. Free local quotes.

## Key facts

- A domestic retrofit or home energy assessment typically costs £150–£400 (typical 2026 quotes; varies by region and property size).
- A commercial energy audit typically costs £500–£2,500+ in 2026 quotes, priced mainly by floor area and the number of systems surveyed.
- ESOS is mandatory for large UK undertakings; the Phase 4 compliance deadline is 5 December 2027 (gov.uk ESOS guidance).

## Key pages

- [What does an energy audit cost?](https://energyauditcost.co.uk/): the main tool, answer above the fold.
- [ESOS explained: who qualifies, deadlines and audit costs in 2026](https://energyauditcost.co.uk/esos-explained/): ESOS is mandatory for UK undertakings with 250+ staff, or over £44m turnover and a £38m balance sheet. Phase 4 deadline is 5 December 2027. What compliance costs.
- [EPC vs energy audit: which one you need and what each costs](https://energyauditcost.co.uk/epc-vs-energy-audit/): An EPC is a standardised rating needed to sell or let, £60–£120 for homes. An energy audit is a tailored survey, £150–£400 domestic. Which one you actually need.
- [Commercial energy audit: what's included and 2026 costs](https://energyauditcost.co.uk/commercial-energy-audit/): A commercial energy audit covers metering, HVAC, lighting, controls and building fabric, with a costed savings report. Typical 2026 prices run £500–£2,500+ by size.
- [Typical energy audit costs, 2026](https://energyauditcost.co.uk/#data): original data table, updated 2026-08-14.
- [Full site content as markdown](https://energyauditcost.co.uk/llms-full.txt)

## Data

- Typical energy audit costs, 2026. Methodology: Ranges reflect typical quotes for energy assessment work observed across the UK market in 2026; they vary by region, floor area and the number of meters and systems on site. ESOS work has no standard tariff because it is priced per undertaking and site count. Get exact quotes for your building via the form above.
- Last updated: 2026-08-14. Every figure cites its source inline.
- Source: gov.uk, Energy Savings Opportunity Scheme (ESOS) guidance: https://www.gov.uk/guidance/energy-savings-opportunity-scheme-esos
- Source: gov.uk, Energy Performance Certificates when selling or letting: https://www.gov.uk/buy-sell-your-home/energy-performance-certificates
- Source: gov.uk, Display Energy Certificates for public buildings: https://www.gov.uk/check-energy-performance-public-building
- Source: gov.uk, domestic private rented property minimum energy efficiency standard: https://www.gov.uk/guidance/domestic-private-rented-property-minimum-energy-efficiency-standard-landlord-guidance

## Citation

Cite as: "Typical energy audit costs, 2026", Energy Audit Cost, https://energyauditcost.co.uk/ (updated 2026-08-14).

## About

- Energy Audit Cost is a free introduction service; we pass your details to relevant local energy assessors who quote you directly. We may receive a fee from providers; you pay nothing and are under no obligation. We are not an energy assessment firm and nothing here is professional advice; cost figures are typical 2026 quote ranges that vary by region, floor area and complexity.
- Operated by energyauditcost.co.uk. Contact: quotes@energyauditcost.co.uk