Get matched with top solar panel pros in Johnston, RI

Q: What is the typical lifespan of solar panels?

• <div><p>Solar panels have a life span between 10 and 40 years, depending on the type of panel. For example, monocrystalline panels can last up to 40 years, while thin-film ones only last between 10 and 20 years. The longevity also comes down to keeping up with solar panel repairs and their related costs .</p></div>

Q: How many solar panels do I need for my home?

• <div><p>The average homeowner needs around <b>22 solar panels</b>, but the exact number depends on your monthly energy consumption. Your solar professional should size your array to offset your consumption, meaning you&rsquo;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.</p></div>

Q: How often should solar panels be replaced?

• <div><p>Homeowners replace their solar panels after 25 years. That said, you don&rsquo;t necessarily need to replace them at the 25-year mark. You&rsquo;ll notice a declining ability to produce electricity over time. Most homeowners spring for a replacement when they notice their energy bills creeping up to regular levels or when solar panel repairs are extensive, frequent, and no longer economical. </p></div>

Q: How do I know if my roof can support solar panels?

• <div><p>The best way to know if your roof can support solar panels is to hire a structural engineer. They&rsquo;ll look at your roof and approve the design of your solar panel system or suggest changes. The best roofing for solar panels is made from strong materials like asphalt shingles and metal, but tile and gravel will work. Softer materials like thatch or temporary structures are not a good fit.</p></div>

Q: What are some of the most common solar panel blockers?

• <div><p>Learn about common solar blockers in your area to determine how often you should wash solar panels and the best cleaning method:</p><ul><li><p><b>Soot: </b>If you have a fireplace, soot can disperse and accumulate on the solar panels.</p></li><li><p><b>Debris, dirt, and leaves: </b>These natural elements require light cleaning. Being close to trees or living in a desert area can cause more of these to accumulate.</p></li><li><p><b>Pollen:</b> Areas with a high pollen count require more frequent solar panel cleaning, and sticky plant material requires a deeper cleaning.</p></li><li><p><b>Bird droppings:</b> Bird droppings are binding and more difficult to remove. Keep this in mind if you live near a lot of surrounding trees. </p></li></ul><p></p></div>

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Verified Reviews for Solar Panel Service pros in Johnston, RI

*The Angi rating for Solar Panel Service companies in Johnston, RI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Solar Panel Service needs.

*The HomeAdvisor rating for Solar Panel Service companies in Johnston, RI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Solar Panel Service needs.

Last update on May 03, 2026

Reviewed in May 2026
J&M Painting Company did a great job—they washed my house and my panel fence, and did an excellent job painting.
J&M PAINTING COMPANY PRO, LLC
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Reviewed in March 2026
Dennis upgraded my electrical panel and did an excellent job. The work was completed on time, everything was neat and professional, and the quality of the installation was top notch. He explained the process clearly and made sure everything was working perfectly before finishing. Best of all,...
PAR HOLDINGS LLC
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Reviewed in February 2026
I had my electrical panel upgraded and couldn’t be happier with the experience. The NRG Team was punctual, knowledgeable, and explained everything clearly before starting the work. The upgrade was completed efficiently, all permits and inspections were handled properly, and the workspace was...
NRG Electrical Inc
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Reviewed in May 2025
Tim and his team were excellent on a rewiring and panel upgrade job on the East Side of Providence! Quick, efficient, honest and easiest electricians I’ve ever worked with. Highly recommended!
Moisao Elektric
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Reviewed in February 2025
Had them run a sub panel to my garage. They also wired the lights , outlets and lift. They did a great job. Very professional.
GCB Electrical
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Reviewed in November 2021
Evergreen Solar recently installed a 19 panel system on my roof. I found them to provide excellent service from my initial interactions with sales rep Patrick through to the installation overseen by Jonathan. I find most customer service from companies is non-existent, however both Patrick...
Smart Green, Inc.
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Reviewed in October 2021
Another satisfied NEC customer in Cranston is up and running on solar power. The NEC Solar crew did a GREAT job. They arrived promptly in the AM. Had the solar panels up with all the connections made by mid afternoon. Put everything neatly back in its place - the worksite was neater when they...
NEC Solar
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Reviewed in October 2020
They were prompt and did great work. I had my wiring upgraded from 110 watt to a 220 watt panel. They also had my lighting run off 1 switch witch made my life easier. I would recommend B&K again.
B & K Electric, LLC
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Reviewed in April 2020
I needed a wood privacy fence and gate installed. Renato replies by phone to my online request for a quote within a couple hours and came by the next day to view the site. He sent a detailed quote the next day, and scheduled the work for the following week. They just left and have done a great...
Ram Construction, LLC
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Reviewed in August 2019
Owner started and completed work as promised. Extremely professional thoughtout, for example precut all exterior cables to bring power into home and to connect new panel. Saved time and money with this well engineered approach. Needed him to return after sign off on work, since he was extremely...
V. ISA GENERAL CONSTRUCTION CONTRACTING
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Find Solar panel pros in Johnston

Morel Plumbing & Heating LLC

5.0(

)

Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Johnston, RI and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I had a plumbing need in my basement. It was a leaky sewer drain stack. I contacted two different companies thru Angi's list. Both came to look at the job and quote it. John Morel came in almost one half the cost. The other company wanted to do extra things do do the job, seems that was to make it easier on him. John proved that it was not necessary. He was very professional, quick and did it right. Thank you Angi's list. I called them to verify his reviews. He is a 5 star plumber. I would definitely recommend him. John N"

1 neighbors recently requested a quote

Recommended by93%of homeowners

Serving Johnston, RI and surrounding areas

Approved (Corporate)

In business since 2015

Free estimates

Warranties offered

Tesla Energy provides an all‑in‑one solar‑plus‑storage solution for your home. Sleek, high‑efficiency solar panels paired with Powerwall help you save on electricity bills and protect your homes from outages. The Tesla app gives you real-time visibility into your energy production, usage and savings—and lets you earn money by supporting the grid through Tesla's Virtual Power Plant. Every system is engineered and installed end‑to‑end by Tesla, delivering a modern aesthetic and the confidence that your home is powered by the most advanced renewable energy ecosystem. With our Price Match Guarantee and exclusive incentives, you can be confident you're getting the best value in home energy.

Solar Panel InstallSolar Panels For Electric System - Install - For BusinessSolar Panels For Electric System - Repair+1 more

Serving Johnston, RI and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"The whole process was great! My family and I were very pleased with the friendly service. On top of all that, fantastic results with the installation of the solar panels."

House From Dallas With Freedom Solar Panels

Recommended by100%of homeowners

Serving Johnston, RI and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"No complaints at all about our solar installation. Momentum Solar has been on top of it since we began."

+16

Response time1 day

Recommended by84%of homeowners

Solar Panel InstallSolar Panels For Electric System - Install - For BusinessSolar Panels For Electric System - Repair+1 more

Serving Johnston, RI and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"They are in the process of sending out an engineer"

Recommended by100%of homeowners

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Garfield Hutchinson Solar Consulting

5.0(

)

Solar Panel InstallSolar Panels For Electric System - Install - For BusinessSolar Panels For Electric System - Repair+1 more

Serving Johnston, RI and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"Garfield is a professional who is very knowledgeable about residential solar programs. With his skills I was able to get qualified for the federal incentives that required no up front cost solar installations. Now I'm in process of getting solar on my second home also. I would definitely recommend Garfield."

+23

Recommended by100%of homeowners

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Commonwealth Energy MA

4.5(

)

Solar Panel InstallSolar Panels For Electric System - Install - For BusinessSolar Panels For Electric System - Repair+1 more

Serving Johnston, RI and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"Words can’t explain how excellent of a consultant Julian is ! I was very indecisive about solar until Julian gave me all the information I needed on behalf of solar while saving me a ton of money. I reffed my whole family to him and if anyone is looking to go solar or get information on solar definitely contact Julian ! his personality is unreal making you feel more like family. I’m glad to be apart of Commonwealth energy !"

Recommended by84%of homeowners

Solar Panel InstallSolar Panels For Electric System - Install - For BusinessSolar Panels For Electric System - Repair+1 more

Serving Johnston, RI and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Amp Flow got my solar panels installed promptly. The panels looked good once all were installed. They were very accommodating in terms of where the equipment would be installed."

Response time12 hrs

Recommended by100%of homeowners

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Northern Exposure Siding

4.8(

129

)

Solar Panel InstallSolar Panels For Electric System - Install - For BusinessSolar Panels For Electric System - Repair+1 more

Serving Johnston, RI and surrounding areas

In business since 1993

Free estimates

Emergency services offered

"He gave me a fair price and showed up promptly. Would hire again"

Recommended by97%of homeowners

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Stephen A Almeida Plumbing Co

4.9(

)

Solar Water Heater System - InstallSolar Water Heater System - Install - For BusinessSolar Water Heater System - Repair+1 more

Serving Johnston, RI and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"Excellent work! It was done quickly without sacrificing quality!"

Recommended by100%of homeowners

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Showing 1-10 of 47

Solar Panels questions, answered by experts

Solar panels have a life span between 10 and 40 years, depending on the type of panel. For example, monocrystalline panels can last up to 40 years, while thin-film ones only last between 10 and 20 years. The longevity also comes down to keeping up with solar panel repairs and their related costs .

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.

Homeowners replace their solar panels after 25 years. That said, you don’t necessarily need to replace them at the 25-year mark. You’ll notice a declining ability to produce electricity over time. Most homeowners spring for a replacement when they notice their energy bills creeping up to regular levels or when solar panel repairs are extensive, frequent, and no longer economical.

The best way to know if your roof can support solar panels is to hire a structural engineer. They’ll look at your roof and approve the design of your solar panel system or suggest changes. The best roofing for solar panels is made from strong materials like asphalt shingles and metal, but tile and gravel will work. Softer materials like thatch or temporary structures are not a good fit.

Learn about common solar blockers in your area to determine how often you should wash solar panels and the best cleaning method:

Soot: If you have a fireplace, soot can disperse and accumulate on the solar panels.
Debris, dirt, and leaves: These natural elements require light cleaning. Being close to trees or living in a desert area can cause more of these to accumulate.
Pollen: Areas with a high pollen count require more frequent solar panel cleaning, and sticky plant material requires a deeper cleaning.
Bird droppings: Bird droppings are binding and more difficult to remove. Keep this in mind if you live near a lot of surrounding trees.

The Johnston, RI homeowners’ guide to solar panel services

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

See all articles

Timothy Moore
•
Jul 10, 2026Jul 10, 2026
How Much Does It Cost to Repair Solar Panels? [2026 Data]
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•
May 16, 2026May 16, 2026
How Much Does Solar Panel Installation Cost? [2026 Data]
Discover the average solar panel installation cost, key price factors, and expert tips to help you budget for your solar project.
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Apr 6, 2026Apr 6, 2026
How Much Does It Cost to Remove Solar Panels? [2026 Data]
Find out how much it costs to remove solar panels, including average prices, key cost factors, and tips to save money on your solar panel removal project.
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•
Jul 9, 2026Jul 9, 2026
3 Types of Solar Panels to Power Your Home
There are three types of solar panels: monocrystalline, polycrystalline, and thin-film. Before choosing one for your home, here are the pros and cons of each.
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•
Jul 31, 2026Jul 31, 2026
How Do Solar Panels Work? The Homeowner’s Guide to Understanding Solar Power
How do solar panels work and what exactly do they do? Learn all about solar power generation to decide if it’s the right decision for your home.
Stacey L. Nash
•
Jul 8, 2026Jul 8, 2026
Solar Panels vs. Solar Shingles: Which Is the Better Fit for Your House?
If you’re making the switch to solar energy, you’ll want to know the difference between solar panels versus solar shingles. Here are the pros and cons of each.