What to look for
Solar installers fit residential and small-commercial photovoltaic systems, often paired with battery storage, EV charging, and smart export control. MCS certification of both the installer and the products is required for grid export, Smart Export Guarantee participation, and most lender-funded retrofit work. RECC or HIES consumer-protection scheme membership backs the installer warranty.
- MCS-certified installer with current expiry date
- RECC or HIES consumer-protection scheme membership
- Workmanship and product warranties scoped (typically 10y+ workmanship, 25y+ panel)
- Smart Export Guarantee paperwork handled
- DNO (G98 / G99) notification handled
- Realistic generation estimate (MCS-compliant calculation)
Typical pricing: £5,500-£8,500 typical 4kW PV-only, £8,500-£14,000 PV + 5kWh battery, £14,000-£22,000 larger PV + battery (UK 2026)
Regulator / certification to look for: Microgeneration Certification Scheme (MCS), RECC, HIES, NICEIC (electrical work)