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Invaleon Solar

We have the complete experience that allows our team members to take a project from its initial planning stages all the way to commissioning. We have survived the ups and downs of the market and know exactly how to deliver a project on time. Our expedited and veteran installation crews have years of experience. At Invaleon, we in-house all of our expertise, which helps keep our staff local and close.
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Established in 2011, Invaleon has been in business since the start of the solar boom in Massachusetts and
has tremendous expertise in taking solar projects from the initial planning stages through commissioning.
Since its inception, Invaleon has developed an installed more than 150MW of solar and has been named as a top 10 solar contractor in MA by Solar Power World Magazine.

Invaleon is proud to celebrate 12+ years in business, which exemplifies our extensive company growth and resiliency in the renewable energy industry. We have made a household name for ourselves and look forward to continuing to serve residents in Massachusetts and beyond! We currently service Massachusetts, New Hampshire, and Maine.

If you decide to go solar with us, our team of solar experts will work diligently to design a system that is custom to your home and energy needs. We will listen to your requests and make recommendations using premium products at affordable prices. Join us and our more than 6,000+ happy customers in going solar. What are you waiting for?
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Services Offered

  • Installation
  • Financing
  • Architecture
  • Construction
  • Plumbing
  • Roofing
  • Electrical Contracting
  • General Contracting
  • Solar Repair & Maintenance
  • Community Solar

Workmanship Warranty

We cover all the add-on parts (aside from manufacturer's warranty) and labor for a minimum of 20 years


Business Incorporation: 452260052
MA, NH, ME Master Electrician: 788 MR
MA CSL: CS-093609
MA HIC: 182825


General Liability
Workers Compensation
Theft and Crime


Master Electrician, Construction Supervisor License (CSL), Home Improvement Contractor (HIC), Professional Engineer - Mechanical & Electrical

Industry Certifications

  • North American Board of Certified Energy Practitioners
  • Solar Energy Industries Association
  • Tesla Powerwall Certified

Manufacturer Certifications

  • Certified Solar Professional
  • Gold Installer
  • PowerUP

What Customers Are Saying

61 reviews
Average Rating 61 review(s)
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Excellent Investment and Service

We received a few quotes and ultimately chose Invaleon to perform our installation. I was concerned with how accurate the solar potential projection would be, but so far it has been on target if not under-estimated. We are extremely happy with the production of the panels. We encountered a supplier issue, but Invaleon worked with us to identify and resolve it without any interruption or impact to our project. Invaleon also worked to identify a product that would balance our production and aesthetic requirements. The design and installation matched our house so well that many neighbors commented they didn’t recognize the panels at first glance. Within the first few months there was one issue, but it was Invaleon that contacted and alerted us to the issue as they were monitoring our production. Invaleon promptly worked at getting a replacement part, and the panels resumed operation perfectly. Invaleon’s prompt handling and service of this issue speaks to their commitment to customer service. The Invaleon crew also were so incredibly respectful in dealing with us and our property. Unlike a few other contractors I’ve seen, they left no residual install parts, wrappers, etc. on our property. Just a terrific job all around in a clean install and keeping our property clean, too. Since that minor manufacturing product issue, the panels have worked absolutely perfectly. Invaleon had worked with us to create an output that would allow for increased demand with future electrical vehicles. Since our installation, we have purchased a PHEV that we use primarily on electrical power fed by our solar panels. We have also purchased a pure EV that is completely powered by our solar panels. Plus, our HVAC contractor previously convinced us to include a heat pump with our HVAC system overhaul. So, we have ended up using our heat pump powered by our solar panels to heat our house at least 80-90% of the time. We tend to also be a little less frugal with the cooling or heating temperature given we have the solar panels to cover the cost. In summary, we have contributed to a greener energy source, eliminated our exorbitant electrical bill (high even before the recent rate hikes), drastically reduced our car fuel cost, dramatically reduced our heating oil cost by at least ~85%, and allowed ourselves the luxury of being a little cooler or warmer on occasion. The project has been an incredible investment all around and we are extremely thankful to Invaleon to help make this solar installation a success.

Posted by jpr on Apr 19, 2023
Fantastic Service

I had chosen Invaleon as the solar installer for my home back in early 2022. They were wonderful to work with and answered any questions or concerns that I had thoroughly. The installation itself was very quick, only taking about 4-5 days. The issues and delays after were mainly just caused by scheduling conflicts with the city and electric company, with no fault to Invaleon. I would consider them again for any future solar installations.

Posted by jeremyc19283 on Apr 14, 2023
Great job

Invaleon installed 52 REC400AA panels on our roof last spring each with an Enphase IQ7+ microinverter. It has been working well for us. We are very happy with the results so far.

Posted by solar on Apr 14, 2023
Awful Company

Critter-guards (sharp metal) fell off roof twice; SMART application after 20 months pending still has not been approved entirely due to delays with my initial application, inadequacy and follow-up from Invaleon despite assurances documentation was "submitted". Project manager no-longer with company. Company is unresponsive. Please use another provided for Solar.

Posted by matthewgrantdalton on Oct 21, 2022
Quality Installation and Great Customer Service

My solar system was installed by Invaleon Solar four years ago. After getting a few quotes from EnergySage, I decided to go with Invaleon as they did another project in my town. Looking back after four years, I feel I should provide a review since enough time has passed for my review to be credible. First, Charlie Roche of Invaleon came up with a great design taking into consideration of system capacity and layout. I signed the contract in June. It took a couple months to get permit and good weather for them to start installation. The installation was fast and finished in just two days, thanks to some prep work Invaleon did in advance. I wish it had taken shorter time from start to finish but a lot of things were out of Invaleon's control. Since my system was up running, there has been no issue, generating electricity consistently. This speaks for the quality of craftsmanship on Invaleon's part. They were also responsive in answering any questions I had during the installation. Two years ago, one of my neighbors across the street was considering solar and he also ended up choosing Invaleon. He is equally satisfied. Overall, I have nothing but good things to say about my experience with Invaleon.

Posted by thmit on Jul 07, 2022
Invaleon Solar

Before I get to the negative review of Invaleon Solar that I chose them to install the system on my house on the beginning of Nov 2021, I would like to thank Charlie and the solar panel installation guys, they were awesome and great. After obtaining different quotes on Energysage and elsewhere, I finally decided to go solar thinking it could save me some money in the long run and do some good to the environment. I chose Invaleon and signed contract with them to do the work on Nov 5th, 2021. After about 2-3 months since signing the contract, I finally got email from them saying we've got the permit. Then the solar installation guys came around Feb 2022 and completed the installation in 5 days, which is fast and great. When I thought I could finally run the long awaiting solar system on my house, oh not yet. It took them more than 2 weeks to get the city's inspector come and then took them forever to get the utility company to install the meter. You really had to follow up with them for what's going on and if not, they will never get back to you with an update, which is the most frustrating part. With the spring/summer on the way, I feel like missing a lot of the good sunshines and of course the solar electricities. The solar panels have been sitting on my roof since Feb and they're not doing anything as of right now and I don't know when they will be up and running. I have another friend who's waiting for me to get my solar system done and give him some feedback and referrals on whom to go with for his solar system. I was once impressed by Invaleon team and now I don't feel like giving him the referral. This review is solely related to the customer team, installation process and the project team. Nothing to do with the quality of the solar panels or the labor and parts of Invaleon. I will update once the system is up and running. - Update on 5/2; Carrie from Invaleon reached out to me and explained what was going on with the delay, after that I was finally able to turn on the system one week after our convosation. Thanks Carrie and the team and I can tell that Invaleon is really caring about their customers. I will update on the quality of the solar system after a few months from now.

Posted by zeplynz on Apr 21, 2022
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    Milton Solar PV
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