How to choose a solar installer in Portugal (2026 checklist)
Resposta rápida
Going solar is a 25+ year investment — the company you choose matters as much as the panels. This is the checklist we'd use to decide. It matters even more if you don't speak Portuguese: you want an installer who supports you in English and handles the paperwork.
Checklist: what to verify
- DGEG-certified lead technician — ask for the certification number. It guarantees the project is signed off by someone qualified.
- Warranties in writing — panels (production up to 25 years), inverter (10–15 years) and the installation itself.
- Tier-1 equipment with a named brand (panels and inverter), not an unnamed “equivalent”.
- A site survey before the quote — without seeing the roof and the bill, any price is a guess.
- An itemised, turnkey quote — what's included (equipment, labour, DGEG registration) and what may be extra.
- Real, verifiable reviews (Google, etc.) and proven experience.
- They handle the licensing (prior notification / DGEG registration) for you.
Red flags
- A fixed “from €X” price without a site survey.
- Pressure to sign on the spot or “today only” deals.
- They can't name the lead technician or the DGEG number.
- Vague warranties or unbranded equipment.
- Large deposits requested before any work.
How Bave meets this checklist
Before you decide
Get 2–3 quotes and compare them like for like. See also how much solar panels cost and whether they're worth it.
Talk to Bave Energy for a free survey and an itemised quote — in English.
Frequently asked questions
How do I choose a good solar company in Portugal?
Check for a DGEG-certified lead technician, clear warranties (up to 25 years on panels), tier-1 equipment, an itemised turnkey quote, real customer reviews and proven experience. Be wary of anyone giving a 'from €X' price without a site survey.
Must the installer be DGEG-certified?
Self-consumption projects must be the responsibility of a qualified technician and registered with the DGEG. Working with a company whose lead technician is certified ensures the rules are followed and the installation is safe.
Should I get several quotes?
Yes, get 2–3 quotes — but compare like for like: same power, same equipment quality, same warranties and what's included. The cheapest upfront often costs more in the long run.
What are the red flags with an installer?
Fixed prices without a site survey, pressure to sign on the spot, no DGEG technician, vague warranties, unbranded equipment, and a lack of verifiable reviews from real customers.