Solar Panel Installer Checklist
How to verify that a solar installer is legitimate, qualified, and trustworthy in 2026 — essential checks before you commit.
Essential checks before choosing an installer
The solar industry has grown rapidly, and unfortunately not all installers meet the same standards. Before signing any contract, make sure your installer meets all of these criteria:
- ✓ MCS certified — mandatory for SEG payments, BUS grants, and most funding schemes
- ✓ Consumer code member (RECC or HIES) — provides independent dispute resolution and consumer protection
- ✓ Competent electrical registration (NICEIC, NAPIT, or equivalent) — ensures safe electrical work
- ✓ Public liability insurance — at least £2 million cover (ask for proof)
- ✓ Transparent pricing — full written quote with itemised breakdown, no hidden costs
- ✓ Clear deposit terms — never pay more than 25% upfront, and ensure deposits are protected
- ✓ Written cancellation policy with a 14-day cooling-off period (a legal requirement for doorstep sales)
- ✓ Verifiable reviews — check Trustpilot, Google, and ask for references from recent local installations
Red flags to watch for
These warning signs are common in the solar industry. If you encounter any of them, proceed with extreme caution or walk away:
- Pressure to sign on the day or 'limited time' offers — legitimate installers don't use high-pressure tactics
- Requesting more than 25% deposit or full payment before installation begins
- No MCS certification or reluctance to show credentials when asked
- Vague quotes without system specifications (panel make/model, inverter type, output estimates)
- Unrealistic savings claims — be wary if projected savings seem too good to be true
- Claims of 'government-backed' or 'government-approved' that can't be verified on gov.uk
- Unsolicited doorstep or cold-call sales — while not always a scam, these warrant extra scrutiny
How to verify MCS certification
You can check any installer's MCS certification number on the official MCS website (mcscertified.com). Search by company name or postcode to confirm they're currently certified. MCS certification means the installer has been independently assessed for technical competence, quality assurance, and consumer protection. It's not just a badge — it's your gateway to SEG payments, government grants, and industry-standard warranties.
Related pages
Ready to get started?
Get a free, no-obligation quote from our team. We'll help you find the best solution for your home.