An energy efficiency audit for a Norfolk business is an on-site assessment of how a building uses electricity, identifying where it is wasted and which upgrades will cut running costs. For most small and medium-sized businesses, a basic electrical audit covering lighting, power distribution and heating controls costs between £250 and £600 and takes half a day to complete. Excel Electrical Services carries out these assessments as part of our energy efficiency solutions for businesses across Norwich, Wymondham and the wider Norfolk and North Suffolk area, giving you a clear, costed list of improvements rather than a vague recommendation to “save energy.”
What Is an Energy Efficiency Audit?
An energy efficiency audit is a structured review of a building’s electrical systems, carried out to identify where energy is being wasted and where upgrades would reduce consumption. For an electrical contractor, this typically covers lighting, the consumer unit or distribution board, heating controls and any obvious inefficiencies in how power is distributed around the site.
This differs from a full ISO-aligned energy audit used by very large organisations, which assesses building fabric, HVAC systems and carbon reporting across multiple sites. Most Norfolk SMEs do not need that level of investigation; a focused electrical audit covering the areas below is usually enough to identify meaningful savings.
What Does an Energy Efficiency Audit Involve?
A typical electrical energy efficiency audit at a commercial premises follows the same broad structure, regardless of the size of the business:
- Review of energy bills and consumption: comparing recent bills against the size and use of the premises to spot unusually high usage.
- Lighting assessment: checking for outdated fluorescent or halogen fittings that could be replaced with LED lighting and assessing whether controls such as sensors or timers would reduce waste.
- Consumer unit and distribution check: inspecting the condition and capacity of the consumer unit or distribution board, since an outdated or overloaded board can contribute to inefficient power use.
- Heating and hot water controls: reviewing whether electric heating systems are running on appropriate timers and thermostats rather than constant or manual operation.
- Power factor and equipment checks: identifying any equipment drawing more power than necessary, including older motors or appliances nearing the end of their working life.
- Written report and recommendations: a clear, prioritised list of upgrades with approximate costs, so you can decide what to act on first.
How Much Does an Energy Efficiency Audit Cost in Norfolk?
Costs vary depending on the size of the premises and the depth of the assessment. The table below sets out the typical ranges for each level of audit.
| Audit type | What it covers | Typical cost |
| Basic walkthrough | Lighting, consumer unit and obvious waste, no detailed testing | £250 to £600 |
| Detailed electrical audit | Full inspection plus testing of circuits, heating controls and equipment | £600 to £1,500 |
| Multi-site or specialist audit | Larger premises or sites with industrial equipment | £1,500 and above |
These figures are general guidance for small and medium-sized commercial premises. Excel Electrical can provide an exact quote once we understand the size of your site and what you want the audit to cover.
How Often Should a Business Have an Energy Efficiency Audit?
Most standard commercial premises, such as offices, shops and small industrial units, benefit from a follow-up audit every two to three years. It is also worth arranging a fresh audit after any major change, such as a refit, new equipment, or a noticeable rise in your energy bills, since these are the points where new inefficiencies are most likely to appear.
What Are the Benefits of an Energy Efficiency Audit for Your Business?
- Lower running costs: identifying waste in lighting, heating and equipment use translates directly into reduced electricity bills.
- A clear, costed plan: rather than guessing where to spend money, you get a prioritised list of upgrades with approximate costs and likely impact.
- Improved safety and compliance: an audit often highlights issues with ageing consumer units or wiring that should be addressed alongside any efficiency work.
- Better workplace conditions: upgraded lighting and heating controls can make a workspace more comfortable for staff and customers.
Why Choose Excel Electrical for Your Energy Efficiency Audit?
Excel Electrical Services has been trading near Norwich since 2001 and is a NICEIC Approved Contractor, giving you confidence that any recommendations and follow-on work meet recognised electrical safety standards. We work across Norfolk and North Suffolk, including Norwich, Wymondham, Diss, Attleborough and Long Stratton, carrying out everything from
commercial and industrial electrical work to electrical testing and inspection. If an audit identifies opportunities to add solar PV or battery storage, our team can design and install these as part of your wider energy strategy.
Is an Energy Efficiency Audit a Legal Requirement?
For most small and medium-sized Norfolk businesses, an energy efficiency audit is not a legal requirement. Larger organisations that meet certain employee, turnover or balance sheet thresholds may fall under government energy reporting schemes, in which case a formal audit becomes mandatory. If you are unsure whether your business is affected, it is worth checking current guidance on GOV.UK or speaking with your accountant.
Ready to find out where your business could be wasting energy? Get in touch with Excel Electrical today to book your energy efficiency audit, contact our team here.
