Want to benefit from NEW WORK under the

Green Homes Grant Scheme?

Become a HIES member today and you’ll receive
FREE TrustMark Membership so you can start installing!


HIES is a TrustMark Scheme Operator which means we can help you get TrustMark membership so that you can install under the scheme.

for a limited period (until 31st December 2020) we’re offering

FREE TrustMark Membership
to HIES members to help support the sector.

To start the process, you will first need to apply for HIES membership and then as your scheme provider, HIES will support your TrustMark application. Fill out the enquiry form to the right, or call our Service Delivery team on 0344 324 5242 to get started.

YES! I’d like to join HIES and receive FREE TrustMark Membership

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    All these benefits AND free TrustMark membership for just
    £95 exc. vat
    offer ends 31st December 2020

    Key Benefits of HIES Membership

    HIES really is a one-stop-shop to support businesses in the renewable energy sector and as well as being endorsed by consumer champion George Clarke, some of our benefits to installers include:

    “I am working with HIES to ensure that consumers are respected, protected and educated on their home improvement journey.”

    George Clarke
    HIES Brand Ambassador

    All these benefits AND free TrustMark membership for just
    £95 exc. vat
    offer ends 30th September 2020

    quotation marks

    Installers who gain accreditation boost their own edge in the marketplace and get the same protection as their clients. And, by guaranteeing first-class safeguards all round, HIES helps build a fine reputation for the industry.

    George Clarke, HIES Brand Ambassador

    What is the Green Homes Grant Scheme?

    As part of investment in a ‘green recovery’, homeowners and landlords in England will be able to apply for vouchers from a £2 billion Green Homes Grant scheme to make over 600,000 homes more energy-efficient and create local jobs. Installing energy saving measures will help homeowners with lower energy bills whilst also helping the environment.

    How do I get accredited?

    The government has mandated that installers must be TrustMark accredited, and also, MCS certified for heat pump and solar thermal installations, to install under the scheme. As HIES is a TrustMark scheme operator, we can help HIES members with the TrustMark accreditation process.

    When do installers need to start the process?

    As the grant is due to go live in September, tradespeople are being urged to start the accreditation process now. 

    What do I do now?

    Join HIES and we’ll support you through your accreditation process with TrustMark. Plus, if you join before 31st December 2020, you also get FREE TrustMark membership for the first year! Contact us today on newmembers@hiesscheme.org.uk or complete our membership enquiry form.

    Join HIES today and get FREE TrustMark Membership!

    HIES Installer Benefits

    Payment Protection


    Including deposit and stage payment protection and insurance backed guarantees, all within job registrations.

    Deposit Protection


    We have negotiated with major finance lenders and brokers to help members access finance for consumers, helping you increase your sales.



    As a TrustMark Scheme Operator, we can help with TrustMark membership so you can become an accredited supplier under the Green Homes Grants Scheme.

    Free Help & Advice Line


    HIES is industry-leading with an average resolution time of just 3.59 days, helping you to protect your reputation. Plus, you also get FREE Ombudsman access and FREE independent inspections.

    Marketing Material


    HIES provides free consumer leaflets, brochures and dropcards (available as digital and printed versions) to help you increase sales conversions and reduce cancellation rates.

    Apply Online HIES Membership


    The Installer Hub portal gives you access to job registrations and our Ecommerce site for easy ordering of collateral, from brochures and web banners to van signs and roller banners.

    Peace of Mind


    Advice on a range of issues including compliance, AoR, RHI, legislation and sales training. Plus, model terms and contracts and access to assured advice from a Primary Authority.



    HIES is endorsed by Brand Ambassador George Clarke, TV presenter and Architect and passionate consumer champion.

    HIES Affiliate Partnership


    Online member search by postcode, consumer advice line to find a supplier and inclusion in the CTSI approved member directory.

    Join HIES today and get FREE TrustMark Membership!