DGEG application, grid connection, all the paperwork — that's on us. You don't have to lift a finger.
Not sure where to start? Our team comes to you, explains everything in plain language and takes care of all the permits. You only sign when you're ready.
Free · No commitment · Fast response
Simple process
We handle everything — from the initial visit to the grid connection application. You don't need to know anything about solar energy. That's what we're here for.
A technician comes to you, assesses the roof and your electricity bill, and explains what savings you can realistically expect — no pressure, no hard sell.
Free · No commitmentYou receive a proposal with the system sized to your consumption, the estimated annual savings and the payback period — all explained in plain language.
Quote in 48 hoursWe take care of the permits, the grid connection application and the full installation. When the job is done, all you have to do is switch on and start saving.
Permits included · Installation warrantyRequired by law for all grid-connected installations in Portugal. The only certification that protects your investment.
Why JSolC?
We started in 2010 with a simple idea: solar installations without bureaucracy, without budget surprises and with someone who actually picks up the phone.
DGEG application, grid connection, all the paperwork — that's on us. You don't have to lift a finger.
We don't subcontract. The team that does the site visit is the same team that installs. We know the city well.
If something goes wrong, we come back. No arguments, no extra charges. That's our promise.
Nobody likes waiting. We commit to getting back to you fast — by phone, email or WhatsApp.
What we do
Solar, heating and cooling, or maintenance — we cover all energy solutions for your home or business.
Full photovoltaic system installation for homes and businesses in Lisbon. Permits and grid connection included.
Learn more →Solar hot water for domestic use and pool heating. Up to 70% reduction on your water heating bill.
Learn more →Full climate control solutions for homes and businesses — integrated heating, cooling and ventilation.
Learn more →Replace your gas boiler with an air-source heat pump. Up to 75% savings on heating energy.
Learn more →Split and multi-split system installation. Cool in summer, warm in winter, air quality guaranteed year-round.
Learn more →Hydraulic or electric underfloor heating systems. Total comfort without radiators, the ideal temperature in every room.
Learn more →Heat pump and solar thermal panels for pools. Extend your swimming season by 4–6 months.
Learn more →What our customers say
"I was really worried about all the red tape. JSolC took care of absolutely everything — the DGEG application, the grid connection, all of it. I only had to sign two documents. The installation took two days and the team left the house spotless."
"We did the free visit with absolutely no pressure. The technician explained everything calmly, without jargon. The quote arrived in 48 hours as promised and the savings they estimated are showing up on our electricity bill."
"I'd already requested quotes from other companies and the difference was clear: JSolC was the only one that called me the same day, came to see the space before proposing anything, and didn't try to sell me more than I needed. I'd recommend them without hesitation."
Frequently asked questions
Most customers arrive with the same doubts. Here are straight answers, no waffle.
No commitment. Our team comes to you, assesses your situation and explains everything — at your pace.