Costmaster investigates electricity and gas billing errors for UK businesses, pursues refunds, challenges incorrect charges and checks that agreed corrections reach your bills.
Free initial discussion. We aim to reply the same working day. Or call 0131 610 1688.
£218,000 recovered from an acquired portfolio
Incomplete site records and mismatched meter details concealed billing errors across a business portfolio. A detailed review secured £218,000 in credits and refunds within the first year.
Delivered through Energy Solutions by our team before Costmaster was formed. Read the case examples.
When the bill needs investigating
A supplier has rebilled an old period. Charges do not match the contract. A meter appears to belong to another site. Or your team has challenged an account repeatedly without getting a clear answer.
We trace the issue through the invoices, contract and supply records, put the evidence to the relevant supplier or operator, and pursue the correction.
- Billing errors: duplicate invoices, overlapping periods, incorrect rates, meter details and capacity charges.
- Refunds and credits: establish the overpayment and pursue the amount due.
- Disputes: challenge charges assigned to the wrong site or business, and resolve inconsistencies in the supplier’s account.
- Preventing recurrence: document the correction and check the relevant contract and billing details.
A practical route to a resolved account
- Tell us what has happened. You can start with an outline of the issue and any deadline.
- Agree the work and fees. We confirm scope, authority, the benefit calculation and payment terms before starting.
- Investigate and pursue the correction. We reconcile the records, challenge the charges and follow the outcome through to the account.
See how the work and fees are structured.
For businesses with a worthwhile problem to resolve
We normally work with businesses spending around £30,000 or more a year on energy. Many engagements involve much larger budgets, multiple sites or complicated account histories.
Anyone investigating the issue can make the first enquiry. You do not need board-level authority, complete records or a diagnosis before contacting us.
Experience behind the investigation
Costmaster is led by Nick Grogan, founder of Energy Solutions and working in UK business energy since 1997. That experience covers contracts, suppliers, billing systems, meters and supply problems. About Nick and Costmaster.
Clear fees before work begins
Our standard fee is 33% of historic refunds, cancelled unpaid charges and the first 12 months of future savings, as defined in the agreed engagement. The initial conversation is free.
Read the fee calculation, payment timing and terms for declined claims.
Start with what you know
Tell us what looks wrong, which supplier is involved and whether there is a deadline. We will explain whether the matter fits our work and what we would need next.
Looking for a new supply contract or renewal offers? Energy Solutions handles procurement.