Find trusted, MCS-certified solar panel installers in London. Compare quotes, check reviews, and see how London homeowners are cutting bills by up to £1,000/yr. Find out more.
This guide walks you through exactly what to look for, what to avoid, and how to get a free quote from a trusted MCS-certified installer in London — without the pressure tactics.Why London is ideal for solar panels
Most people assume London does not get enough sunshine. That is simply not true. London receives more solar irradiance than the UK average, and modern solar panels generate electricity from daylight — not direct sun alone. In fact, Enfield in north London averages 1,182 kWh per square metre each year, around 12% above the national average.
That extra sunlight translates directly into more electricity generated and more money saved. A well-sized system in London can cut your electricity bill by hundreds of pounds per year.
London has 56,739 MCS-certified solar installations across its 32 boroughs — and that number is growing every month.
What makes a solar installer trustworthy in the UK?
Not every installer is the same. Before you sign anything, check for these non-negotiables:
- MCS certification — required for your installation to qualify for the Smart Export Guarantee (SEG)
- TrustMark accreditation — a government-backed quality mark
- Strong Trustpilot or Checkatrade reviews — look for 4.5 stars or above from verified customers
- Transparent, itemised quotes — no vague pricing or pressure tactics
- Manufacturer warranties — the best panels carry 25-year performance guarantees
How much do solar panels cost in London?
Installation costs depend on your roof size, energy demand, and whether you add battery storage. As a general guide:
- Small system (6–8 panels): from £4,000
- Mid-range system (10–12 panels): £6,000–£8,000
- Full system with battery storage: £9,000–£13,000
Most systems pay for themselves within 7–10 years through bill savings and SEG export payments. After that, the electricity is essentially free.
Are there solar panel grants available in London?
Yes — though eligibility rules apply. The ECO4 scheme helps lower-income households cover installation costs. Some London boroughs also run their own energy efficiency programmes. Even without a grant, the Smart Export Guarantee pays you for every unit of surplus electricity you send back to the grid.
Do you need planning permission in London?
In most cases, no. Permitted development rights cover the majority of domestic solar installations. You may need to apply if your home is listed or sits within a conservation area, or if the panels would protrude more than 0.2m from the roof surface. A reputable installer will always check this before they begin.
Questions to ask before you choose an installer
- Are you MCS-certified and TrustMark-registered?
- What warranties come with the panels and the installation?
- How long has your company been operating?
- Can you show me recent reviews from London customers?
- Will you handle the SEG application on my behalf?
Get a free, no-obligation solar quote from a trusted installer in London. No pressure. No commitment. Just honest advice about what solar can do for your home.
Get your free quote at Soar Panels UK
The bottom line
Solar panels are one of the smartest long-term investments a London homeowner can make right now. Energy prices are unlikely to fall significantly, sunlight is free, and the right installer will have you up and running in a matter of weeks.
Take the first step today. Compare quotes, ask the right questions, and make an informed choice — with no obligation.