Verified record
Invaleon Technologies Corporation, doing business as Invaleon Solar, is a Haverhill, MA solar installer led by Tom Wu, in business since 2011 (the company's own materials elsewhere print a 2010 founding date). It holds an active Massachusetts Home Improvement Contractor license (#182825), verified with the state licensing registry. Google reviewers give the company an aggregate 3.9 stars from 51 ratings, and early customers — installs dating from 2018 through 2023 — often described a smooth, professional sales and installation process with responsive salespeople and on-schedule work. However, a long and consistent run of one-star reviews from 2023 through 2025 describes a company that becomes very difficult to reach once a system needs warranty service or repair: customers report system failures going unaddressed for months, unanswered calls and emails, and unmet first-year production guarantees. One customer updating an earlier complaint in early 2026 said a system that had been down since November 2025 was not restored until February 2026. A federal OSHA safety record lists five violations and $39,906 in penalties against the company. Court records also show the company named as a defendant in a 2026 construction-related lawsuit, and in an August 2025 Massachusetts bankruptcy court matter the court sustained the company's objection to a claim brought by former customers (the Berkowitzes), based on a prior settlement agreement between the parties. An earlier Massachusetts HIC license the company once held (#170813) is reported by a directory as having been cancelled at some point — unconfirmed here against the state registry directly. Prospective customers considering a residential installation should also note that at least one recent reviewer said they believed the company had shifted its focus mostly to commercial customers, so it is worth confirming residential service directly before signing on.
“Wound up going with Invaleon since Ace couldn’t get us IQ8+ inverters at the time. We just got PTO a couple of days ago and so far everything looks good!”
“The electrical company is suing New Balance Athletics, Green Leaf Construction of Massachusetts, and Invaleon Technologies Corporation.”
“The U.S. Bankruptcy Court for the District of Massachusetts had sustained an objection by Invaleon Technologies Corporation to the Berkowitzes’ claim based on a Settlement Agreement”
“Montserrat hired Haverhill-based Invaleon Technologies Corp. to install the system.”
“Invaleon Technologies Corporation (Invaleon Solar), a National Solar Developer EPC, headquartered in Haverhill, MA, was selected through a competitive bid process to provide solar installation services for the college.”
“People of the 10th anniversary Top Solar Contractors list: Tom Wu, Invaleon Solar”
Fantastic service even given hard situations like when the vendor didn't get back to him for weeks on a replacement that is under warranty!
So these guys installed our solar and battery sytem in 2023. I believe they no longer do residential work, only focusing on commercial customers now. Our Enphase Gateway stopped operating, and the remote Enphase tech I spoke with could not diagnose or get the system back running. I called Invaleon for servcie as they are the installers, but I was concerned with the switch to all commercial they might not support our installation. Turns out I was proven wrong; they took the call and organized the fix. It took a few days longer than I wanted, but when I got their attention, it was a great experience. Glad I stuck with them and hope they continue to provide support.
We bought a large system from Invaleon 10 years ago and are very happy both with the system and with the company. Installation started on schedule and was completed on time with all the required permissions and permits being provided. The installation was very neat and system performance was and still is excellent, exceeding original estimates. There is a certain technical knowledge required to design a good system. Not all companies have that skill. Invaleon does. Regarding servicen we've needed very little but the few hardware failures we have experienced were fixed under warranty in a timely fashion. All in all dealing with Invaleon was a pleasant experience. It was profitable too, with the system paying for itself in about 7 years and now providing 'free' electricity and likely to continue to do so more or less indefinitely.
Horrible company & communication, no responses, no feedback, no follow ups. No client appreciation or satisfaction. Extremely unprofessional, Will leave you hanging in the wind, and leave your project on hold forever.I would really question this companies activities. If you try to make any progress come about you will be left waiting forever.
HORRIBLE service. Avoid at all costs! Invaleon installed my 23 panel solar power system in 2018. A failure in 2022 took 9 weeks in the middle of summer to repair. Now in 2024-2025 my system has failed again; Invaleon offers no diagnostic repair service at all (or even a response beyond 1 email after several weeks, with no followup) and 5 months have gone by with no further response. Answering service on phone calls, but ZERO followup after 5 months, even with prompts and reminders. No hope of repair. This company acts as if it were out of business, and if not legally bankrupt and out of business, it certainly should be. DO NOT USE!
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