What is most important?

MCS certification (no SEG without it) and Insurance-Backed Guarantee (protects your warranty). Everything else is negotiable — these two are not.

Compare Solar Installers UK

By Home Solar Guide Team|Updated 18 March 2026|guide

Independently written | Evidence-based | Sources cited

Comparing solar installers — The right installer makes ALL the difference. Compare on quality, not just price.

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How do I compare solar installers?

Compare UK solar installers on: (1) MCS certification (verify at mcscertified.com — mandatory). (2) Reviews (4.5+ stars on Trustpilot AND Google, 10+ reviews). (3) Insurance-Backed Guarantee (protects warranty if company folds). (4) Price per kWp (£1,300-£1,800 fair range). (5) Experience (5+ years, 50+ installations). (6) Panel and inverter brands (recognised names only). (7) Warranty terms (25yr panel, 5-10yr inverter, 5-10yr workmanship). (8) What is included (scaffolding, MCS, DNO). Get 3-5 quotes and compare on ALL of these criteria — not just the headline price.

Frequently Asked Questions

Related: Home Heating Systems

Solar panels are most powerful when combined with an efficient heating system. Heat pumps use solar-generated electricity to heat your home at 300-400% efficiency — making them the ideal partner for solar.

heat pump installation process

Heat pump installation typically takes 2-3 days and is best planned alongside solar.

From our sister site Home Heat Pump Guide