TL;DR
MCS certification is the only one that's non-negotiable; you need it to get paid for exporting power. Protections like HIP or RECC cover your deposit, workmanship warranty, and contract rights. Always verify an installer's protection before signing anything.
The solar industry has an unfortunate love of acronyms. When you're comparing quotes, you'll see a lot of logos — MCS, HIP, RECC, TrustMark. They aren't just for show; they tell you who you're dealing with.
MCS: The one you can't skip
If you only remember one, make it MCS (Microgeneration Certification Scheme). This is the industry's quality standard for both products and installers.
An MCS-certified installer has proven they can design, fit, and commission a system to a high technical standard. The panels and inverter they use must also be MCS-certified products.
Crucially, many Smart Export Guarantee providers ask for MCS evidence before paying for exported surplus electricity. Check the installer, product and tariff requirements before you sign.
HIP & RECC: Your safety net
These are the consumer and financial protection layers. HIP (Home Improvement Protection) provides deposit protection and insurance-backed guarantees, while RECC (Renewable Energy Consumer Code) is a consumer code used across renewables.
They exist to protect you, the customer. Membership means the installer must follow rules on:
- Clear contracts: No hidden clauses or confusing jargon.
- Deposit protection: Your money is insured if the company goes bust.
- No hard selling: They must give you time to think, not pressure you on the day.
- Dispute resolution: If something goes wrong, there's an independent body to mediate.
Think of it as your insurance policy against cowboy outfits and misleading sales scripts.
TrustMark: Government-endorsed quality
TrustMark is a broader, government-endorsed quality scheme for all home improvement trades, not just solar.
To get the TrustMark badge, a company must prove it has high standards of technical competence, customer service, and trading practices. It's another good sign that an installer is reputable, but the solar-specific MCS and a consumer code membership are more critical.
How to check an installer's claims
Don't just trust the logos on a website. Anyone can copy and paste a JPEG.
- For MCS, use the installer search on the mcscertified.com website.
- For HIP or RECC, check their protection or member directories online.
- For TrustMark, use their "Find a Tradesperson" search.
It takes two minutes and tells you for certain if they are who they say they are. Belt and braces.
What a good installer looks like
A reputable installer will have all the right paperwork in order and be happy to prove it. Ask installers to show current certification and consumer-protection documents before you sign.
If you want a quote from an installer who's done the homework so you don't have to, get in touch for a free site survey.




