5 Best solar companies in Portola Valley, CA (2023 ranking)
There are plenty of solar companies out there – check out this updated ranking for the top rated solar installers in Portola Valley, CA based on shopper preferences. Compare customer ratings, company tiers, and genuine customer feedback to see which installer is the best fit for your solar project.
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Solar companies in Portola Valley, CA 2023
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![Solar Optimum logo]()
Benicia, CAEstablished 2008Elite+ InstallerSince 2008, Solar Optimum continues to be the leader in supplying solar energy systems, back-up battery storage and roofing for homeowners and businesses in California, Nevada and Arizona. Our team is made up of professionals that aim to protect the environment with the latest technologies as well as offer immediate and long-term savings to the consumer....
* THREE-Time Winner: 2022, 2021 and 2020 Panasonic National Installer of the Year
* Since 2008, Solar Optimum has led the energy revolution acr…Elite+ Installer
Screened & Verified
Since 2008, Solar Optimum continues to be the leader in supplying solar energy systems, back-up battery storage and roofing for homeowners and businesses in California, Nevada and Arizona. Our team is made up of professionals that aim to protect the environment with the latest technologies as well as offer immediate and long-term savings to the consumer....
* THREE-Time Winner: 2022, 2021 and 2020 Panasonic National Installer of the Year
* Since 2008, Solar Optimum has led the energy revolution acr… -
![American Array Solar and Roofing logo]()
Livermore, CAEstablished 2012Elite+ InstallerWith 80 years of combined experience at American Array Solar and Roofing, we put our customers first! We service all of California with 5 locations across the state. We offer an industry leading 30 year warranty. As one of California's top rated Solar and Roofing companies we are partnered with world class solar and roofing manufacturers to bring you the latest, long lasting and high performance technology on the market....
From residential, commercial to industrial projects, we do them all.
…Elite+ Installer
Screened & Verified
With 80 years of combined experience at American Array Solar and Roofing, we put our customers first! We service all of California with 5 locations across the state. We offer an industry leading 30 year warranty. As one of California's top rated Solar and Roofing companies we are partnered with world class solar and roofing manufacturers to bring you the latest, long lasting and high performance technology on the market....
From residential, commercial to industrial projects, we do them all.
… -
![Better Earth logo]()
Menlo Park, CAEstablished 2017Elite InstallerWith an unmatched 60 DAY INSTALLATION GUARANTEE and 25 YEAR MONEY BACK PRODUCTION GUARANTEE it is clear why our customers have made us the fastest growing solar company in the U.S....Elite Installer
Screened & Verified
With an unmatched 60 DAY INSTALLATION GUARANTEE and 25 YEAR MONEY BACK PRODUCTION GUARANTEE it is clear why our customers have made us the fastest growing solar company in the U.S.... -
![Next Solar logo]()
San Carlos, CAEstablished 2011Elite InstallerOur company provides affordable energy efficiency products for big savings at zero down....Elite Installer
Screened & Verified
Our company provides affordable energy efficiency products for big savings at zero down.... -
![Mega Power Electric Inc logo]()
Santa Clara, CAEstablished 2000Elite InstallerAt Mega Power Electric, Inc, we have more than 16 years of success working in the industry and that was only possible because of our dedication and determination to deliver the best quality of customer service and satisfaction. All of our customers get the same experience and we are only happy with the results and consider it a job done, when you are. Part of the reason why we can deliver this level of service is the fact that we have a full team of experts who are specialists in specific disciplines and a…...Elite Installer
Screened & Verified
At Mega Power Electric, Inc, we have more than 16 years of success working in the industry and that was only possible because of our dedication and determination to deliver the best quality of customer service and satisfaction. All of our customers get the same experience and we are only happy with the results and consider it a job done, when you are. Part of the reason why we can deliver this level of service is the fact that we have a full team of experts who are specialists in specific disciplines and a…... -
![Nationwide Sun logo]()
Rocklin, CAEstablished 2001Elite InstallerNationwide Sun is a company that prides itself in acute attention to detail....
Our CEO is a master engineer who oversees every project personally.
We handle everything from design, installation, completion, and warranty repair.
Nationwide Sun is the only company known in California with all the following licensure and capability under one person and company:
A Engineering, B General, C10 Electrical, C27 Commercial Landscaping, C39 Roofing, HAZ-ASB-MLD-UST
Nationwide employs no sales st…Elite Installer
Screened & Verified
Nationwide Sun is a company that prides itself in acute attention to detail....
Our CEO is a master engineer who oversees every project personally.
We handle everything from design, installation, completion, and warranty repair.
Nationwide Sun is the only company known in California with all the following licensure and capability under one person and company:
A Engineering, B General, C10 Electrical, C27 Commercial Landscaping, C39 Roofing, HAZ-ASB-MLD-UST
Nationwide employs no sales st… -
![NRG Clean Power logo]()
San Jose, CAEstablished 1987Elite+ InstallerNRG Clean Power is on a mission to change the way energy is produced, consumed and stored. We believe that energy production should be decentralized, deregulated, affordable and most importantly, renewable. Complete energy independence is our goal. Solar, The Smart Way ™....
Dedicated project managers will guide you through the project that includes a lifetime warranty to protect your investment. This is solar, the smart way!
*Fully licensed electricians (C-10 license Class)
*Perfect Safety Track…Elite+ Installer
Screened & Verified
NRG Clean Power is on a mission to change the way energy is produced, consumed and stored. We believe that energy production should be decentralized, deregulated, affordable and most importantly, renewable. Complete energy independence is our goal. Solar, The Smart Way ™....
Dedicated project managers will guide you through the project that includes a lifetime warranty to protect your investment. This is solar, the smart way!
*Fully licensed electricians (C-10 license Class)
*Perfect Safety Track… -
![Ra Solar logo]()
San Francisco, CAEstablished 2013Installer
Screened & Verified
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![Silverline Solar logo]()
Pittsburg, CAEstablished 2014Advanced InstallerAs a family run business, we care most about the LEGACY we leave behind for you....
As a builder (general contractor), we love what we do and we're excited that our work often lasts longer than most people live in their homes. Also, because we're EXPERT BUILDERS, the warranty on any roof work we do is not violated once the solar is installed because we do both together.
At the end of the day what are you buying? Energy! So, what is your solar worth if you don't get a guarantee on…Advanced Installer
Screened & Verified
As a family run business, we care most about the LEGACY we leave behind for you....
As a builder (general contractor), we love what we do and we're excited that our work often lasts longer than most people live in their homes. Also, because we're EXPERT BUILDERS, the warranty on any roof work we do is not violated once the solar is installed because we do both together.
At the end of the day what are you buying? Energy! So, what is your solar worth if you don't get a guarantee on… -
![LA Solar Group, NEVADA Solar Group, TEXAS Solar Group logo]()
Sacramento, CAEstablished 2011Approved InstallerLA SOLAR GROUP and Its subsidiary companies are one of the highest-rated solar companies in California, Nevada and now in Texas....
With over 200+ installations each month, most of our business comes directly from referrals of satisfied customers.
We are an INC 5000 company as one of the fastest-growing businesses for 7 straight consecutive years. LA SOLAR GROUP and its subsidiaries are committed to designing the most cost-effective and productive solar solutions for your home. We take a conserv…Approved Installer
Screened & Verified
LA SOLAR GROUP and Its subsidiary companies are one of the highest-rated solar companies in California, Nevada and now in Texas....
With over 200+ installations each month, most of our business comes directly from referrals of satisfied customers.
We are an INC 5000 company as one of the fastest-growing businesses for 7 straight consecutive years. LA SOLAR GROUP and its subsidiaries are committed to designing the most cost-effective and productive solar solutions for your home. We take a conserv… -
![SolarUnion logo]()
San Francisco, CAEstablished 2011Approved InstallerSolarUnion is the only Diamond Certified Solar Company in the State of California that offers a 25-year performance guarantee on (i) parts, (ii) labor, (iii) roof attachments and (iv) power output....
We are rated highest in quality on customer satisfaction, insurance coverage, license and business practices. We offer a premium solar experience to our customers.
The SolarUnion Team includes in-house certified C46 and C10 solar electricians and carefully vetted installers with decades of experience in…Approved Installer
Screened & Verified
SolarUnion is the only Diamond Certified Solar Company in the State of California that offers a 25-year performance guarantee on (i) parts, (ii) labor, (iii) roof attachments and (iv) power output....
We are rated highest in quality on customer satisfaction, insurance coverage, license and business practices. We offer a premium solar experience to our customers.
The SolarUnion Team includes in-house certified C46 and C10 solar electricians and carefully vetted installers with decades of experience in… -
![GIMenergy logo]()
Sacramento, CAEstablished 2017Approved InstallerFully integrated solar installation company and the future of utilities. GIM provides full turn key solar installation systems and maintenance. Employing our own electricians and installer allows us to provide an elevated experience. With our own roofing division we are able to bring customers a full service option to update the roof before installing solar. Using top tier 1 products allows us provide quality over quantity to give homeowners peace of mind knowing their system will produce for the next 30 y…...Approved Installer
Screened & Verified
Fully integrated solar installation company and the future of utilities. GIM provides full turn key solar installation systems and maintenance. Employing our own electricians and installer allows us to provide an elevated experience. With our own roofing division we are able to bring customers a full service option to update the roof before installing solar. Using top tier 1 products allows us provide quality over quantity to give homeowners peace of mind knowing their system will produce for the next 30 y…... -
![Diamond Solar Inc. logo]()
North Hollywood, CAEstablished 2016Advanced InstallerDiamond Solar will design, build and install your solar system in under 60 days. You will have a dedicated project manager who will escort you into being a clean energy home, with you every step of the way!...
Our team has over 25 years of combined solar experience and we pride ourselves on being a company devoted to client satisfaction.
-Highly rated on Google, Yelp & Angi's List
-Family Owned & Operated
-A+ Rating by the Better Business Bureau
-5 Star Rated Company on S…Advanced Installer
Screened & Verified
Diamond Solar will design, build and install your solar system in under 60 days. You will have a dedicated project manager who will escort you into being a clean energy home, with you every step of the way!...
Our team has over 25 years of combined solar experience and we pride ourselves on being a company devoted to client satisfaction.
-Highly rated on Google, Yelp & Angi's List
-Family Owned & Operated
-A+ Rating by the Better Business Bureau
-5 Star Rated Company on S… -
![Soleeva Energy: Patented Self-Cleaning & Self-Cooling Technology logo]()
San Jose, CAEstablished 2010Approved InstallerWe are Soleeva Energy. The bay area's favorite solar technology and installation company which has disrupted the entire solar market. Soleeva has powerful, highly rated and US-Made solar panels with self-cleaning and self-cooling technology. Our warranty is 30 years and our production warranty is from 15-25 years. We offer panels at very competitive prices. We are a one-stop-shop for all solar needs. Roofing, EV chargers, batteries, electrical panel upgrades etc. you name it, we have an expert for it…...Approved Installer
Screened & Verified
We are Soleeva Energy. The bay area's favorite solar technology and installation company which has disrupted the entire solar market. Soleeva has powerful, highly rated and US-Made solar panels with self-cleaning and self-cooling technology. Our warranty is 30 years and our production warranty is from 15-25 years. We offer panels at very competitive prices. We are a one-stop-shop for all solar needs. Roofing, EV chargers, batteries, electrical panel upgrades etc. you name it, we have an expert for it…... -
![SunPower by Solar Alliances logo]()
San Jose, CAEstablished 2009Approved InstallerProviding the most competitive SunPower Solar + Storage Solutions in California....
Highest Solar Panel Efficiency in the entire industry.
25-Year Product Warranty by SunPower.
25-Year Performance Guarantee (92% in year 25) by SunPower.
25-Year Labor Warranty by SunPower.Approved Installer
Screened & Verified
Providing the most competitive SunPower Solar + Storage Solutions in California....
Highest Solar Panel Efficiency in the entire industry.
25-Year Product Warranty by SunPower.
25-Year Performance Guarantee (92% in year 25) by SunPower.
25-Year Labor Warranty by SunPower. -
![Swell Energy logo]()
Ventura, CAApproved InstallerSwell Energy is a single source for homeowners throughout California for complete home energy solutions including installation of solar and battery backup energy storage, plus participation in Virtual Power Plant Programs that provide additional customer savings and help take pressure off the electric grid. As an energy management and smart grid solutions provider, Swell Energy is creating a greater grid for the greater good by accelerating the mass adoption of distributed clean energy technologies and by …...Approved Installer
Screened & Verified
Swell Energy is a single source for homeowners throughout California for complete home energy solutions including installation of solar and battery backup energy storage, plus participation in Virtual Power Plant Programs that provide additional customer savings and help take pressure off the electric grid. As an energy management and smart grid solutions provider, Swell Energy is creating a greater grid for the greater good by accelerating the mass adoption of distributed clean energy technologies and by …... -
![Schools Solar logo]()
San Diego, CAEstablished 2017Approved InstallerSchools Solar is a highly reputable company that is designated by the California School Employee Association as their approved vendor for all of their 100,000+ members for the state of California. We focus on serving our clients from start to finish and that is why we have an A+ rating with the BBB. We offer specialized financing, leasing and PPA options that are designed to help any homeowner go solar. Every solar system also comes with the SunPower Complete Confidence Warranty which is considered the gol…...Approved Installer
Screened & Verified
Schools Solar is a highly reputable company that is designated by the California School Employee Association as their approved vendor for all of their 100,000+ members for the state of California. We focus on serving our clients from start to finish and that is why we have an A+ rating with the BBB. We offer specialized financing, leasing and PPA options that are designed to help any homeowner go solar. Every solar system also comes with the SunPower Complete Confidence Warranty which is considered the gol…... -
![SunWork - a local nonprofit organization logo]()
Milpitas, CAEstablished 2005Approved InstallerSunWork's nonprofit model lets us deliver solar power to homeowners with already modest electricity use (and correspondingly low electricity bills) at a third less than the conventional cost, allowing more people to make the switch to solar and enabling broader adoption of this clean, safe, and renewable alternative to the sources of energy that contribute to climate change....
In order to improve the quality of the installation and the customer experience, our professional Project Leads are respo…Approved Installer
Screened & Verified
SunWork's nonprofit model lets us deliver solar power to homeowners with already modest electricity use (and correspondingly low electricity bills) at a third less than the conventional cost, allowing more people to make the switch to solar and enabling broader adoption of this clean, safe, and renewable alternative to the sources of energy that contribute to climate change....
In order to improve the quality of the installation and the customer experience, our professional Project Leads are respo… -
![Rx Solar Inc. logo]()
Oakland, CAEstablished 2013Approved InstallerYou won't get lost in a sea of clients. We're a leaner and more efficient company, ready to earn your business!...
Looking for a high level of service and installation at a competitive price? Our staff expertly manages projects from start to finish and communicates with our clients for the duration of the project and post installation providing continued support.
Contact us today for your free professional consultation and estimate!Approved Installer
Screened & Verified
You won't get lost in a sea of clients. We're a leaner and more efficient company, ready to earn your business!...
Looking for a high level of service and installation at a competitive price? Our staff expertly manages projects from start to finish and communicates with our clients for the duration of the project and post installation providing continued support.
Contact us today for your free professional consultation and estimate! -
![SunElectric LLC logo]()
Sacramento, CAEstablished 2018Approved InstallerSunelectric has the best warranty in the industry! We are back by SolarInsure the best Warranty Company in the World. Active Monitoring - Covers Parts and Labor - Transferable Ownership - Full security never get stuck with a bill!...
Sunelectric's Quality to its project and commitment to Service to our Customer is Divine!Approved Installer
Screened & Verified
Sunelectric has the best warranty in the industry! We are back by SolarInsure the best Warranty Company in the World. Active Monitoring - Covers Parts and Labor - Transferable Ownership - Full security never get stuck with a bill!...
Sunelectric's Quality to its project and commitment to Service to our Customer is Divine! -
![Zenernet logo]()
Livermore, CAEstablished 2017Installer
Screened & Verified
See the cost of solar in Portola Valley, CA
Check pricesHow we determine the best solar companies in Portola Valley, CA
At EnergySage, we care about connecting solar shoppers to high-quality solar energy companies. As such, any solar installers we list above are active on the EnergySage Marketplace in Portola Valley, CA and are pre-screened by our team.
What does it mean to be “pre-screened”? We evaluate every solar panel company to ensure that they’ll provide quality service to EnergySage users. These high-quality installers are approved based on their years of experience, licensing and insurance, reputation, and certifications. When bringing new installers into the EnergySage Marketplace, here’s how we ensure our partners are the best of the best:
- At least three years of experience installing solar
- Licensed and insured for solar installations
- NABCEP certified
- Reputation for excellent customer service and quality solar installations
- Installs high quality solar equipment
Solar resources for Portola Valley, CA
How to pick the best solar installer
When you’ve already narrowed down your options to reputable installers and are trying to decide which quote to move forward with, here are three final considerations that distinguish the best from the rest:
Workmanship warranties
What is covered and for how long?
In the unlikely event there’s an issue with your solar panel system, it’s important to know who to call if something goes wrong. There are multiple warranties that come with your solar energy system, from manufacturer warranties for different components to workmanship warranties from your installer.
The workmanship warranty is specific to the work the installer performs, and is typically somewhere between one and 10 years. Be sure to check with your installer to see what’s included in the warranty, if there are any exclusions, and if there’s any cost to you in the event they have to come out and check on or replace some equipment.
The use of sub-contractors
Which crew will install your system?
In some instances, solar installers will rely on subcontractors to perform some, or all, of the work included during your solar installation. Don’t let this put you off: it’s entirely standard procedure in the industry. What is alarming, though, is a lack of transparency from installers about who will install your system and why they use subcontractors.
When you’ve narrowed down your list of potential solar installers, be sure to ask who will install the system–their own crew or subcontractors–and, if they use subs, ask why they do, what portion of the install the subcontractors will complete, and what oversight the company you purchase your system from has over the subcontractors. At the end of the day, the most important question is who will stand behind the quality of your installation.
Expertise
How does each installer tailor their system to your needs?
Beyond ensuring that your solar installer has all of the appropriate licenses and industry-specific certifications, it’s important to work with a solar installer who has experience custom designing systems to fit their customers’ needs.
When you’re comparing your options, the best installers will work with you to understand your needs, as well as how solar fits your overall energy plans. Make sure your solar installer provides a consultative, professional solar experience, and if you’re also purchasing a solar battery system, they have proven experience with those products too.
By doing the legwork for you, EnergySage makes it easy to find reputable solar installation companies in Portola Valley, CA. We’ve already vetted all of our installer partners, and keep a close watch over their performance to ensure their installations and customer satisfaction are up to the levels that you–and we–expect. Start receiving free quotes from reputable installers in your area by creating an account on the EnergySage Marketplace today.
Common questions about Portola Valley, CA solar installers
According to solar shoppers on the EnergySage Marketplace, the top five solar installers in Portola Valley, CA are:
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Updated 10/2016
Updated 09/2022