I can remember a time where if I saw a house with a solar panel on it I’d be like holy sh1t. No it seems almost every single house in the country has one. That’s not the case still because they are still fairly expensive. We’ve been on the hunt at the moment for identifying the best solar panel installer in Ireland because I like doing my due diligence. So I wanted to put together this article to highlight my research about some of the best installers in the country.
I don’t know the true figure but seemingly over 100,000 homes have made the switch to solar panels alread, and it seems with the seai grants, which you can avail of €1800 towards your installation. It kind of looks like the math is making sense now.
And I do like it when the math makes sense. My next question as always is who do I trust to put on my roof and to install solar panels that are going to last as many years as possible. I’d like to think I’m not an idiot, I know some of the big companies are paying a lot in marketing fees And I know if I go for one of these bigger companies I’m going to end up paying for those marketing fees.
SoI’m looking for someone who’s reliable and I’m looking for someone who’s going to be done in a few days and not months, I’m looking for warranties, I’m looking for quality products And I’m looking for someone who’s generally pretty sound, that I can contact if I’m having an issue.
So to accomplish this I’m going to be checking out a hell of a lot of reviews online. For this article I’ve just been looking through all of the Google reviews as they seem to be the most reliable and we might look through trust pilot as well.
I know there is no single best installer in Ireland. The right one depends on your county, your roof, your budget, and how soon you want it done.
What follows is a field guide to eleven companies worth your time, from a sharp owner-led outfit in the midlands to the big national names.
All are on the SEAI register. Whoever you lean towards, get three quotes before you sign a thing.
One thing to sort first. To claim the €1,800 SEAI grant, you must use an SEAI-registered installer and have your grant approved before any work begins. 0% VAT applies to home solar through 2026. Two minutes on the SEAI register saves a lot of regret later.
1. Solar PV Panels Ireland: the midlands outlier worth driving for
Every now and then a smaller company quietly outclasses the big names, and this is one of them. Solar PV Panels Ireland is run by Joe Reilly and his team out of Ballymahon, Co. Longford. It is not the largest operator on this list. It might be the most quietly impressive. The reviews tell the story. A perfect 5.0 on Trustpilot, backed up by glowing Google feedback, with the same theme over and over: Joe answers the phone himself, turns up on the date promised, and leaves the place spotless.
The kit is premium too. Think Jinko N-type panels, Solis hybrid inverters, and Sigenergy all-in-one battery systems, even generator backup for rural homes that lose grid power. The team will take on the jobs others quietly decline. Three-storey houses. Tight roofs full of velux windows. And they do it without padding the scaffolding bill. Grant and BER paperwork is handled, with customers reporting payment inside a month.
The honest caveat: this is a growing regional company, not a nationwide machine, so book early and expect a midlands focus.
Have a look: solarpvpanelsireland.ie
2. Activ8 Solar Energies: the one everyone has heard of
If solar in Ireland has a household name, it is Activ8. Trading since 2007 from Carrickmacross, Co. Monaghan, it has fitted systems for well over 20,000 customers and runs its own crews across most of the country. That scale shows in the consistency. The reviews back it up, with a 4.8 on Trustpilot from more than 3,000 of them, praising punctual teams, tidy work, and clear updates from survey to switch-on.
One thing to raise at quote stage. Activ8 fits its own branded “Atlas” panels rather than an independent brand. That is not a dealbreaker, but it is fair to ask who makes them and what the warranty actually covers before you commit.
Have a look: activ8energies.com
3. PV Generation: the dependable all-rounder
Some companies grow loud. PV Generation, or PVGEN, just kept doing good work. Since 2015 the Monaghan team has completed more than 4,000 installs for homes, farms, and businesses, all on a turnkey basis. One company, start to finish: survey, design, install, grant, aftercare. You are not chasing three different people.
What lands again and again in its 4.8 Trustpilot score, from over 1,100 reviews, is the absence of a hard sell. People mention honest advice, a smooth process, and aftercare that actually answers the phone. Coverage is strongest across Leinster and Munster, with national reach. If you want a large independent with a long, believable track record, PVGEN earns its place on the shortlist.
Have a look: pvgeneration.ie
4. Wizer Energy: the fast riser from Cork
Wizer is the young company that grew up fast. Founded in 2020 in Little Island, Cork, it has already passed 3,000 installs across homes, farms, and businesses in every county. It was quick to adopt all-in-one inverter and battery units, which makes for a cleaner, simpler system on the wall.
The feedback is excellent, a 4.8 on Trustpilot, and the recurring notes are short waiting times, fair pricing, and an office team people actually enjoy dealing with. For homeowners in Munster who want a sharp, responsive local installer rather than a name from the far side of the country, Wizer is a natural call.
Have a look: wizerenergy.ie
5. Alternative Energy Ireland: the premium pick
Not everyone is chasing the lowest price, and AEI is built for the people who are not. This Dublin installer has more than a decade in renewables and fits the Autarco system, which comes with a manufacturer-backed yield guarantee. That guarantee is the headline. It promises a minimum level of generation over time, so you are not just trusting a sales estimate.
The reviews are strong, a 4.8 on Trustpilot, with customers pointing to careful design and the reassurance that the system will perform. If warranty depth and guaranteed output matter more to you than shaving off the last few hundred euro, AEI is well worth a quote, particularly around Dublin.
Have a look: alternativeenergy.ie
6. Ohk Energy: the scaled-up one-stop shop
Image brief: A large crew and branded vans outside a home on install day. Alt text: “Ohk Energy crew on a residential solar install in Ireland.”
Ohk is what you get when two established names join forces. Born from the merger of NRG Panel and JFW Renewables, it is now one of the biggest renewable installers in the country, with a large nationwide team and an Electric Ireland partnership behind it. As an SEAI one-stop-shop provider, it handles the grant and the BER for you, and it carries triple ISO accreditation and Best Managed Company recognition.
Its rating sits around 4.7 across Google and Trustpilot, from roughly 300 reviews, with most people reporting smooth, professional installs. As with any high-volume operator, the odd scheduling wobble crops up in busy spells, so get your dates in writing.
Have a look: ohkenergy.com
7. Solar Generation: the west of Ireland specialist
Image brief: A rooftop array on a rural west-coast home, green fields behind. Alt text: “Solar Generation panels on a rural home in the west of Ireland.”
The west and north-west are not always quick to get served by the big national crews, which is exactly the gap Solar Generation fills. Based in Sligo, it has built a solid name across a region others can be slow to reach, handling the full job from survey to grant claim.
The reviews are excellent, a 4.8 on Trustpilot from around 200 of them, with the usual markers of a good local installer: clear communication and a clean, careful finish. If you are in Sligo, Mayo, Leitrim, Donegal, or anywhere in the north-west, a regional specialist like this often beats a distant national firm on both price and flexibility.
Have a look: solargeneration.ie
8. MySolar: a safe pair of hands in the east
For homeowners along the east coast, MySolar is a reliable option close to home. Based in Malahide, Co. Dublin, it pairs a high review score with a healthy run of installs, which is usually a good sign of steady, repeatable service. The full journey is covered, grant paperwork and aftercare included.
It holds a 4.8 on Trustpilot from around 145 reviews, with the familiar praise for professional crews and a process that just works. Buyers in Dublin, Meath, Kildare, and Wicklow get a local team that knows the patch and can usually move quickly. As ever, line up its panel and inverter brands against one other quote before you decide.
Have a look: mysolar.ie
9. Clean Energy Ireland: the multi-trade veteran
Some firms only fit panels. Clean Energy Ireland does rather more. In business since 2006 and based in Cork, it keeps a full set of trades in-house, with engineers, plumbers, electricians, and carpenters under one roof. That means it can handle solar PV alongside solar thermal, ventilation, heating, and even air-tightness testing.
That breadth makes it a natural fit for self-builds and deeper retrofits rather than a simple panel swap. And a company nearly two decades in is far more likely to still be around when a warranty question lands years from now. Its maintenance and guarantee packages are a noted strength. Ask for recent local references when you call.
Have a look: cleanenergyireland.ie
10. Efficient Renewables: the one with a showroom
Here is a rarity in this trade: a company you can actually visit. Operating from Co. Donegal since 2009, Efficient Renewables brings more than 40 years of combined experience across Ireland and Northern Ireland, and it runs a proper showroom. Most renewable firms do not, so the chance to see panels and systems in the flesh before you buy is genuinely useful.
The team fits solar PV alongside heat pumps, ventilation, and underfloor heating, which suits anyone planning a wider home upgrade rather than a standalone install. Feedback across Google and Facebook is positive, with strong repeat and referral business locally. If you are in the north-west and like to ask your questions face to face, the trip is worth it.
Have a look: ehprenewables.com
11. Enerpower: the commercial heavyweight
If you are powering a business rather than a home, this is the name to know. Founded in 2005 and based in Waterford, Enerpower specialises in larger projects across solar, wind, biomass, and heat. It has delivered turnkey solar for serious clients, including national retail and food distribution names, the kind of work that needs real project management.
Enerpower handles development, install, and ongoing maintenance, so a complex site has one accountable partner rather than a patchwork of contractors. It leans commercial rather than residential, but for a bigger building with bigger bills, that scale and experience are precisely the point. For B2B work, ask to speak to a couple of recent commercial customers.
Have a look: enerpower.ie
How to pick the right one for you
This list is a starting point, not a verdict. Once the quotes land, here is how to read them.
Check SEAI registration first, every time. No registration means no grant and no compliance with the Solar PV Code of Practice. Verify it yourself rather than taking anyone’s word for it.
Get three quotes, and make sure they are not all the same type of company. Include at least one large independent and one local installer. The same system can vary by €2,000 or more between firms, and the gap usually comes down to the panel brand, the inverter, and what is quietly left out, like scaffolding, the BER, or monitoring.
Compare like for like. A cheaper price often hides a less proven panel or a smaller inverter. Ask each installer to name the exact brands, and favour ones that have been around for a decade and are likely to honour a 25-year warranty.
Then ask the question most people forget: what happens in year five or year ten if something fails? A firm with a real aftercare plan and a long track record is worth a small premium over the cheapest quote on the table.
The warning signs
A few red flags come up again and again in the Irish market.
Pressure to sign on the spot is the big one. The salesperson at the door with a deal that “ends today” is using a tactic, not offering you value. No reputable installer needs an instant yes.
Treat eye-watering savings claims with caution. If a quote will not tell you the panel or inverter brand, that is a problem in itself. And if a company is not on the SEAI register, walk away, whatever they promise.
A few quick answers
Do I have to use an SEAI-registered installer? Yes, if you want the €1,800 grant. They also sort the grant paperwork for you.
What does a home system cost? Most land between roughly €5,000 and €10,000 before the grant, depending on size, battery, and roof. Three quotes will give you your real number. More panels, more energy, more initial investment.
Is solar even worth it in our weather? It is. Panels still generate on cloudy days, and the grant and 0% VAT shorten the payback. Most homeowners are ahead within a few years.
Should I add a battery? A battery lets you use far more of your own power, often the difference between using a third of it and most of it. It costs more upfront but tends to improve the long-term return, especially with export payments.
What about the big energy suppliers? Bundles from the likes of Electric Ireland and Energia are convenient, but pricing is often higher than an independent. Get one and compare before committing.
The short version
Ireland is not short of capable solar installers, and the eleven here are among the most trusted, all SEAI-registered with real customer feedback behind them.
But the best company for your home is simply the one that gives you a clear, properly specified quote, names its components, and stands over its work. Get three quotes, read them side by side, check the register, and then choose.
Do that, and you are set for the next 25 years.