Cut Your Energy Bills With
Expert Solar Panel Installers in London
Trusted by homeowners across London with verified 5-star reviews.
Happy Customers
Google Rating
Bill Reduction
Payback Period
Fully
Accredited
Why Sol4r Energy
What makes us different from other solar companies
We don't use sub-contractors. Every survey, design, and installation is done by our own engineers - the same team that delivers utility-scale projects.
100% In-House EPC
No sub-contractors, ever. One accountable team from survey to handover — giving you consistency and a single point of contact throughout.
Award-Winning Installer
SME UK Enterprise Award winner — Best Solar Installation Company London & South for 2024 and 2025, independently judged.
Industry-Leading Warranties
Up to 30-year panel warranty, 10-year battery & inverter cover, 2–10 year workmanship guarantee, plus 2 years free annual maintenance.
MCS, NAPIT & ISO 9001 Certified
MCS registration NAP-68781, NAPIT accredited, and ISO 9001:2015 quality management certified. Every installation meets the highest UK standards — required for SEG eligibility.
Premium Equipment Only
AIKO panels, Tesla Powerwall, Sigenergy, Solax and more. Market-leading products selected for UK performance and long-term reliability.
Finance Option Available
Finance option available through Phoenix Financial Consultants Limited. Subject to status and credit approval.
Chosen by
Industry Leaders
How It Works
Three simple steps to your solar system
Request Your Free Quote
Fill in the short form or call us directly. No obligation, no pushy sales — just honest advice about what solar could do for your home.
Survey & Bespoke Design
Our engineer visits, assesses your roof and energy usage, and designs a system built specifically for you — with accurate savings projections.
Installation & Handover
Our in-house team installs your system — usually in just 1–2 days. We handle all paperwork, certifications, and set up monitoring before we leave.
SEE WHAT OUR CUSTOMERS ARE SAYING
Hear what our customers have to share about choosing
Sol4r Energy as their partner in renewable energy solutions
Your Potential Savings
How much could you actually save?
Solar panels in the UK genuinely cut electricity bills — and a battery means you use more of what you generate rather than exporting it back at a low rate.
Lower electricity bills
Generate your own power during daylight and reduce what you buy from the grid from the very first bill.
Smart Export Guarantee income
As MCS-certified installers, we can help you register for the SEG — earn money on energy you export back to the grid.
Protected from rising energy prices
Solar gives you a fixed energy source — reducing your exposure to future electricity price increases.
Estimate Your Annual Saving
Move the slider to your average monthly electricity bill
Monthly electricity bill: £150
Estimated Annual Saving
£1,620
targeting 90%+ energy offset with solar & battery
Indicative only. Actual savings depend on system size, roof orientation, energy usage, and tariff. Your survey will provide accurate projections.
Finance Available
Solar PV Finance Options Available
Finance option available through Phoenix Financial Consultants Limited.
Sol4r Energy Ltd is an Introducer Appointed Representative (Financial Services Register No. 1005252) of Phoenix Financial Consultants Limited (Phoenix). Phoenix is authorised and regulated by the Financial Conduct Authority (FRN: 539195), and offers finance from its panel of lenders. All finance subject to status and credit checks.
Ready to make the switch?
Get your free solar quote today
No obligation. No pushy sales. Just an honest assessment of what solar could do for your home — and what it would cost.