Any Qualified Provider List for UK Homeowners

This guide is for UK homeowners who want a trustworthy list of qualified providers. No single official list covers every installer and lender. Several free registers each check a different thing. We show you where each register sits, how to vet a firm step by step and which red flags to watch for.

We do not list or recommend individual firms. We point you to the official sources so you can check any firm yourself.

Independent guide. We are not a lender or a government body. Always check current scheme rules with the official provider.

Where the official registers are

Each register answers one question about a firm. MCS shows whether an installer and its products are certified. TrustMark shows whether a firm meets the government-endorsed quality scheme. RECC and HIES show which consumer code protects you. The FCA register shows whether a lender is authorised.

MCS installer search: mcscertified.com/find-an-installer.
TrustMark search: trustmark.org.uk.
RECC member list: recc.org.uk.
HIES member list: hiesscheme.org.uk.
FCA register: register.fca.org.uk.

Every MCS installer must belong to a consumer code approved by the Chartered Trading Standards Institute. The two codes are RECC and HIES. Both give you deposit protection, a workmanship warranty of at least two years and a seven-day cooling-off period. RECC bans high-pressure selling. HIES offers insurance-backed guarantees and free dispute resolution.

How to vet a provider step by step

Follow these steps for every firm on your shortlist. Each step uses a free official source. Keep a record of your results. Drop any firm that fails a step.

Search for the installer on the MCS website. Confirm the certification covers your technology.
Check the firm on the TrustMark register.
Confirm its consumer code on the RECC or HIES member list.
Ask for an itemised written quote. Get two or three quotes in total.
Ask how your deposit is protected and confirm the seven-day cooling-off period.
Read the workmanship and product warranty terms.
Check any finance provider on the FCA register. For the Warm Homes Loan Scheme, check it is one of the ten listed lenders.

Red flags to watch for

Scammers often pose as official schemes. A genuine firm gives you time and paperwork. Treat any of the signs below as a reason to stop. Report suspected scams to the official scheme provider.

Cold calls or unannounced visits offering a free or government upgrade.
Pressure to sign today, or a discount that ends at the end of the visit.
A request for an upfront fee before a loan is approved.
Claims to be "the government scheme" or an official scheme body.
No written quote, or a quote without a breakdown of items.

Checklist

Installer and products confirmed on MCS
TrustMark registration checked
RECC or HIES membership confirmed
Two or three itemised written quotes received
Deposit protection and cooling-off period confirmed
Lender confirmed on the FCA register

Frequently asked questions

Is there one official list of qualified providers?

No. MCS, TrustMark, RECC, HIES and the FCA each keep a separate register. Use them together.

Does an MCS installer always belong to a consumer code?

Yes. MCS installers must belong to RECC or HIES.

A firm called me about a free government upgrade. Is it genuine?

Treat cold calls with caution. Check the firm on the official registers and contact the scheme provider directly.

Should I pay a fee to get a loan approved?

No. Never pay an upfront fee for a loan.

How do I check a lender?

Search for it on the FCA register. For the Warm Homes Loan Scheme, check it is one of the ten listed lenders.

What if I have a dispute with my installer?

Contact its consumer code. HIES offers free dispute resolution, and RECC sets rules its members must follow.

So you can choose a provider from official registers and avoid firms that put you at risk.

WHLS Editorial Team

Our editorial team writes independent, plain-English guides on home energy finance. We review guides when scheme rules change.