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TRUSTED BY WALTHAM, MA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon23
    Verified solar panel services reviews

Top-Rated Solar panel pros in Waltham - Updated Nov 2026

Avatar for Genove Oil & Air Co
Genove Oil & Air Co
4.7(
217
)
Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Waltham, MA and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"Excellent. I've had Genove install both gas and oil heating systems in my properties, most recently oil. They have also installed central air/hydro air and handle my oil delivery. The techs have always been polite & knowledgable. Their customer service is impeccable. As a landlord/home owner, I couldn't be happier with them handling all my HVAC needs and would recommend them to anyone."
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Pics
Pics

+2

Response time12 hrs
Response rate100%
12 neighbors recently requested a quote
Avatar for Solar Medix
Solar Medix
4.6(
11
)
Solar Panels For Electric System - RepairSolar Panels For Electric System - Repair - For Business

Serving Waltham, MA and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"I contacted Solar Medix replace two DC string inverters on our 15 year old solar array. As it turned out, they were able to correct some wiring instead of replacing the inverters! Thank you for doing a fantastic job! They saved us a few thousand dollars! And I highly recommend them!"
Junction
blown over ground mount array
America
little rain never hurt no panel
unirac flex

+19

Response time1 day
Response rate92%
100 neighbors recently requested a quote
Avatar for Venture Home Solar, LLC
Venture Home Solar, LLC
5.0(
3
)
Solar Panel Install

Serving Waltham, MA and surrounding areas

Approved (Corporate)

In business since 2015

Free estimates

Credit card accepted

We are proud to have built a team of over 220 trained, in-house professionals devoted to bringing clean, green energy to the Northeast. We help homeowners save money on the best solar panel system available while replacing electricity and making a better tomorrow for us all. With our world-class solar systems using LG panels optimized for energy, advanced in-home monitoring controls, unbeatable warranty, and exceptional service, our customers know they?re getting the best in the industry. Based in Greenpoint, Brooklyn, we service NYC, Long Island, New Jersey, Connecticut, Rhode Island, New Hampshire, and Massachusetts. Feel free to get in touch with your questions or contact us for your free quote!

What an amazing solar install!
Response time2 days
Recommended by100%of homeowners
Avatar for Mouradian Plumbing & Heating
Mouradian Plumbing & Heating
4.7(
19
)
Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Waltham, MA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I hired Eric to install a Lochinvar noble heating unit in my home and he and his teams did an amazing job. I will certainly be engaging Eric in the future should any future service needs arise. Eric and his teams were very professional and punctual. They were able to complete the job on time as promised (in two days) and they worked diligently, efficiently, and took care to keep my home clean and follow Covid safety protocols (which I highly appreciated). I would definitely recommend Eric and his teams if you are looking to get a job like this done and get it done at a reasonable price and with truly quality work and technicians."
Response time1 day
Recommended by100%of homeowners
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
522
)
Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Waltham, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"Sales rep arrived promptly, answered all questions clearly, gave us two different price options, and did not push us for an immediate commitment. The installation team was overseen by two seasoned staff. They were able to connect our solar hot water panels to the new system, which another firm said could not be done. All the work was completed on time, and they showed us how every component worked. Their office is handling the paperwork for our rebate for replacing a furnace that was more than 30 years old. From our experience, this is a professional organization, with competent staff at every level. Their price seemed a little high, but the quality of the work justified it."
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31 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Better Solar Solutions, LLC
Better Solar Solutions, LLC
5.0(
2
)
Solar Panel InstallSolar Panels For Electric System - Install - For Business

Serving Waltham, MA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We pride our company on reliability, great communication, \nintegrity, and quality work. We are experts in our trade and will do our best \nto keep you as educated as we can on your particular task or project. We are locally owned and operated. Give us a call today, we look forward to earning your business!

Projects
8 neighbors recently requested a quote
Avatar for Northeast Power, LLC
Northeast Power, LLC
5.0(
3
)
Solar Panels For Electric System - RepairSolar Panel InstallSolar Panels For Electric System - Install - For Business+1 more

Serving Waltham, MA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"My solar inverter stopped working in my existing solar system, and since my original installer went out of business, I had a hard time finding someone to replace the inverter provided by SolarEdge. It was a small job, and most large companies weren’t interested, while those willing to help were booked out for at least a couple of months. I contacted Justin, and he replaced the inverter within just a few days. He was very friendly, efficient, and offered a very reasonable price. Justin was also extremely knowledgeable, explained everything clearly, and kept me updated throughout the process. He arrived on time, completed the work neatly, and made sure the system was running perfectly before leaving. Overall, his professionalism, honesty, and dedication to customer satisfaction made the whole experience stress-free and smooth."
Northeast Power
Northeast Power
Northeast Power
Northeast Power
Northeast Power

+2

20 neighbors recently requested a quote
Recommended by66%of homeowners
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Solar Panels FAQs, answered by experts
  • Installing a new electrical meter box

  • Replacing your meter base

  • Replacing your service entrance cable 

The cost to install or upgrade an electrical meter box ranges from $100 to $650, including $50 to $250 for the unit. The meter base passes the power from your electric company to your panel. The cost to replace a meter base is roughly $50 to $250. 

Service entrance cables are electrical cables with multiple wires, bringing power from electrical companies to residential buildings. The cost to replace a service entrance cable ranges roughly from $1,000 to $1,500.

The morning sun can be better for solar panels because it’s often brighter and clearer than the afternoon sun. The brighter the sun, the more energy solar panels produce. The strongest rays occur during midday, which tends to be prime time for solar energy generation. Most homes get a mix of morning and afternoon sunlight.

Yes, it is possible to install solar panels on a tar and gravel roof, but it is not the ideal roofing material for a solar installation. The process requires roof penetrations to install the solar racking system. While installers will seal these penetrations, they still increase the risk of leaks. This risk is higher on tar and gravel roofs, which are often flat. Flat roofs are more prone to leaks than sloped roofs because they can pool water during heavy rain and hold snow for longer periods, exposing the roof to more moisture.

Professionals use the same methods to install solar shingles that they do for asphalt shingles, so you’ll often see a similar installation timeline of one to two days. The amount of time required will depend on the size and slope of your roof and the number of shingles installed. Weather conditions can delay installation, as working on a roof is unsafe during high winds or heavy rain.

The average homeowner needs around 22 solar panels, but the exact number depends on your monthly energy consumption. Your solar professional should size your array to offset your consumption, meaning you’ll need fewer panels if you use below-average amounts of electricity, or more than 22 if you use above-average amounts of electricity. The number of panels also depends on the output of each panel. The average is around 400 watts, but you might need more panels if you install less capable equipment. Since there are so many variables, you should have a professional size your system.

The Waltham, MA homeowners’ guide to solar panel services

From average costs to expert advice, get all the answers you need to get your job done.