Solar panels for your home
Cut your energy bills with a system designed for your roof by a family-run team. Free, no-obligation quote.
- 20+ years
- Family-run
- Which? Trusted Trader
Get your free quote
No-obligation. We'll call you back to talk it through, usually the same working day.
Solar built around your home
Energy bills keep climbing. A solar system lets you make your own power on the roof and spend less on what you buy in. It can also add value to your home.
We have fitted solar across London and the South East, including Croydon and Redhill, for over two decades. Every system is designed around your roof and how you use energy.
- Budget-friendly 3kW system. Installation and certification included.
- Detailed technical survey first. No guesswork about what your roof can do.
- Usually done in a day. Scaffolding, if needed, goes up a few days before.
- Your power, your choice. Use it now, store it for later or export it.
Want to know what your roof could generate? Ask for your free survey.
From survey to switch-on
Technical survey
We assess your roof and your energy use, then give you a clear quote.
Pick your date
Choose an install day that suits you. We book scaffolding if it is needed.
One-day install
Our team fits the panels and the inverter that turns the DC they produce into power your home can use.
Controls and handover
We hand over the controls so you can use your power straight away, store it or export it.
Ready to book your survey? It takes two minutes to ask.
Add the extras that get more from your panels
Remote monitoring, battery storage, water heater boost diverters and micro-inverters all work alongside your panels.
Battery storage
Keep daytime power for the evening instead of exporting it all.
Micro-inverters
Panel-level performance and monitoring.
Health checks and maintenance
Keep your system performing for the long run.
Water heater boost diverters and more
Send spare solar to your hot water. Ask us when you quote.
Not sure which extras suit you? Tell us about your home and we will advise.
Get paid for the power you do not use
In 2020 the government introduced the Smart Export Guarantee. It lets you profit from exporting surplus renewable energy to the national grid, so your system pays you back sooner.
There is a system size limit, but most domestic installations are big enough to qualify. We will check yours when we quote.
Eligible technologies
- Solar PV panels
- Wind turbines
- Anaerobic digestion
- Micro combined heat and power
- Hydro
Find out how quickly a system could start paying you back.
What our customers say
Real reviews from homes we've fitted.
Excellent service from initial enquiry through to completion. Paul and Chris run a great team and are hands on to ensure everything runs smoothly. Installation was carried out in just one day and we were briefed thoroughly about the system before they left. Wouldn't hesitate to recommend SW3 and so happy we found them.
A big thank you to Chris, Paul, and the whole team at SW3 Green Energy Services Ltd! A couple of months ago, I had a 15-panel solar system installed, complete with microinverters and a Powerwall battery. I'm already seeing real savings, especially with being able to make the most of off-peak rates and getting good returns from my energy provider's export rates.
What really impressed me about SW3 Green Energy was their reliability and professionalism. They were on top of everything from the first quote to the final paperwork. My setup was a little complex, with specific requirements around the placement of the Gateway and Powerwall, plus integration with my Zappi EV charger. They handled it all seamlessly.
Even when my energy provider botched the smart meter installation, leaving my system down, Chris came back to sort things out and got it up and running again.
We were quoted for 14 panels and 2 batteries and an installation date was set for 2 months later. Everything was delivered on time and the team arrived when agreed. The work was carried out by one electrician who was excellent. It was a very neat installation and done in a day and a half. Any queries were dealt with promptly and to our satisfaction. We would recommend the company.
Join them. Get a free, no-obligation quote from the same team.
Questions people ask us
How long does a home solar installation take?
Most installs finish within a day. If your roof needs scaffolding, we may put it up a few days beforehand.
What happens before installation?
We carry out a detailed technical survey of your property, then agree an install date that suits you.
Does the price include installation and certification?
Yes. Our home solar package includes installation and certification. Your free quote spells out exactly what is included for your roof.
Can I add a battery, monitoring or a water heater diverter?
Yes. We fit battery storage, remote monitoring, water heater boost diverters and micro-inverters alongside your panels, or later on.
What is the Smart Export Guarantee?
It is a government scheme, introduced in 2020, that lets you be paid for surplus renewable energy you send to the grid. There is a system size limit, but most domestic installs are big enough to qualify.
Still have a question? Ring us or send the form.
Ready to make your own power?
Tell us about your home and we will come back with a free, no-obligation quote.