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Culture Energy
- Team
- Saving
- House
“I just signed up with Darshan and they've been answering all of the questions I have after being so anxious and I can't wait for the next steps and installation.”
Best Solar Panel Installers near Waltham, MA
3 of these contractors are based in Waltham; the others serve Waltham from towns including Woburn (8 mi), Boston (9 mi) and Needham (7 mi).
1 open 24/7 · 11 open weekends · 21 rated 4.5+ · 3 show a license
Data verified October 16, 2026
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ECA Solar
“They are showing major growth due to their customer focused business philosophy and project completion rate.”
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Aten Concepts
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Boston Solar
- Permits
- Conduit
- Responsive
“Boston Solar completed installation of solar panels on our roof and we are pleased to recognize the well-coordinated team that accomplished our goal of becoming more energy efficient.”
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GN Exteriors
- Gutters
- Job
- Team
“I recommended GN Exteriors to my own brother and he has hired them and i would strongly recommend them to you if you are in need of exterior house repair!”
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Loyalty Exterior Roofing Solutions
- Project
- Estimate
- Work
“A company that focuses on quality, they are highly qualified professionals, who seek to solve your problem and deliver the work in a way that will make you satisfied, I recommend it to anyone.”
The 24 contractors listed for Waltham, MA design and install rooftop solar and battery systems. Each entry repeats what the company publishes about certifications, the equipment it fits and its hours, together with star ratings and comments drawn from public reviews.
Area overview: Waltham, MA
23 of the 24 contractors on this page have a rating, from 4.2 to 5.0 across 3,875 reviews; 15 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (92%), responsiveness (87%) and quality (84%). The topics that come up most in reviews of the contractors on this page are "communication", "price" and "estimates". 1 is open around the clock; 10 are open on Saturdays and 5 on Sundays. 3 show a license on their websites and 1 has a BBB rating of A or A+. Domain records put 14 websites of the contractors on this page at ten or more years old; the oldest dates from 2002. 1 offers emergency call-outs; 6 offer financing or payment plans; 8 give free estimates; 2 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 24 of the contractors on this page; 19 publish a contact page; 15 list a public email and 1 takes bookings online. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Can a survey happen outside working hours?
Weekend hours appear for 11 of the 24 contractors here, which is often when a roof survey is easiest to arrange around work. The survey itself wants daylight and dry weather, since someone has to get onto the roof or fly a drone over it to check the covering and measure shading.
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Energysage
- Contractors
- Competitive
- Bids
“It puts the spec sheets of the quoted hardware at your fingertips, breaks down what incentives you can expect to pocket, and breaks down the price per watt and time to pay off...”
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Comfortmax
- Expertise
- Project
- Communication
“We had been trying to get our system repaired by another company for a long time, but after weeks of getting the run around, they were unable to fix it.”
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Future Energy Solar
- Team
- Questions
- System
“Was extremely responsive to my suggestions and requirements and kept me informed in detail about every step throughout the application and permitting processes.”
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Venture Solar
- System
- Roof
- Sales
“This means that if you're in a condo (that's part of a subdivided parcel), and you/your neighbors all want to get solar you are at the whims of the MA DPU to grant an exception, which can take up to a year.”
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Nexis Power LLC
- Electric
- Informative
- Roof
“Nexis qualifies their Solar Systems with the utility company, obtains city permits quickly and professionally, and informing the customer where is the project and their next upcoming steps.”
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Solstice
- Environment
- Utility
- Money
“The shared solar system allows for cost savings and makes renewable energy accessible to individuals who may not have the option to install solar panels on their property.”
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Universal Roofing Solutions
- Job
- Project
- Price
“From reaching out to Igor for a quote, to a great price, impeccable follow-through and ultimately a precise job- this was one of the best contractors we've ever worked with.”
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Team Sunshine Construction
- House
- Project
- Questions
“Friendly customer service, quick and easy process, easy way to pay for everything and fantastic installation crew who were in and out of my home quickly.”
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Nexamp
- Credits
- Discount
- Saving
“Only one problem--your billing i two months behind the current bill from Nat Grid--It would be helpful if on your monthly invoice you would post the time covered by that invoice--that would make it much easier to compare monthly costs--thanks”
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Solar On Earth
- Bill
- Farm
- Questions
“My experience with my Representative from Solar Farms was a very good experience, Vincent was my Representative and he was always courteous and respectful, due to the fact he always would follow up and stop by at the worst time as my commute home is ...”
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Brightway Energy
- Questions
- Project
- Team
“We did the detailed calculations and projected cost for install based off annual usage and expected usage with potential upgrades to home including pool, jacuzzi and more.”
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Great Sky Solar
- Inspections
- Panels
- Design
“We decided on Great Sky based on their quote through the Energy Sage website plus a glowing recommendation from a neighbor, and we now know that we made the right decision.”
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Joseph D. Holman
- Quote
- Tesla
- Charger
“I did pay $49 for one company for evaluation and the employee said he needed to open some holes at my basement ceiling for wiring from the electric box to the garage.”
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FB Integrated Solutions Inc
- House
- Estimate
- Communication
“We contracted FB Electrical to add recessed lights throughout the home and figure out why the separate garage had no electricity (at all) even though there were electrical outlets available.”
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Solar Gardens By Syncarpha
- Bill
- Charge
- Cost
“The complicated mattertook several weeks and we knew this was going to be the case, but the weekly updates from Jovita made us rest assured where we stood and what progress was being made.”
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Goso Technologies
- Solar Panels
- Questions
“So far the team of all members, with the guidance of Rob Eason my sales representative and the installation of team of Palmetto and Solar Flair has been very seamless.”
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Sunbug Solar: A Revision Energy Company
- Solar Panels
- Cost
- System
“They even informed me of a supporting post that was off-center which was totally outside their work area, and they were very detailed in their communicating the visual expectations of the system and making sure I was okay with it.”
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Viridis Energy Solutions
- Project
- Emails
- Questions
“The biggest issue we dealt with was permitting — we were informed our town had only 2 inspectors and they were working through a backlog that'd started all the way back in 2020 due to Covid.”
Why these companies made our list
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