Top-Rated Solar Installer in Phoenix, AZ

about us

100+ Years of Excellence

With nearly 20 years experience as solar panel installers, and electricians for over 100 years and 4 generations - both on residential and commercial projects from small to very large - we very well may be the most experienced solar panel installers & electricians in Phoenix and all of Arizona.​

Although Watt Masters was founded in Phoenix, AZ in August of 1999, the history of our family’s company goes all the way back to the early 1900’s when our great grandfather, Gustav Bühler was installing the first electrical systems into homes in Germany! Over 100 years later, our commitment still remains the same - “Exceeding our customers' expectations with a quality they can depend on.”

-Thomas Buehler, Owner

watt masters values in store for you
the watt masters way


how it all began

A timeline of our 100+ year history

Newspaper of Gustav Buhler electrician installing first residential electrical in Hemeln Bei Hann Munden Germany
Early 1900's
In the early 1900's, our great grandfather Gustav Bühler started "Bühler Electric" to serve his local community by installing the first electrical systems into homes, which consisted of 1 light and 2 outlets. He teaches his son, Rolf Bühler the trade; and to always do the highest quality work and exceed customer's expectations - because that's the right thing to do.
Early 1900's
New York
After WW2, Rolf Bühler and his newlywed wife, Hilde hopped aboard a ship to Ellis Island in New York at the age of 18 with hope in their eyes and big dreams in their hearts. Rolf begins "Buehler Electric" in NY, servicing customers such as Estee Lauder out of his 8 rigged-up VW busses.

After his radical salvation, Rolf has "Jesus is Lord" painted on the side of his electrical service van! And he begins to share the love of Jesus with his customers.

His sons, Tom and Ralph take an interest in electrical and begin learning from Rolf around 8 years old. From the beginning, Rolf lays a solid foundation in them of quality workmanship, a job done right, and how to treat customers well. Thus the tradition continues of, "Exceeding customers expectations with a quality they can depend on!"
Best solar installers in Arizona
August 1999
In 1986, after hearing from the Lord, Rolf and his family being their move to Phoenix, AZ. Soon after, his sons Tom & Ralph Buehler, followed in his footsteps, and those of their Grandfather Gustav, and began Buehler Brother's Electric - eventually implementing the dba of Watt Masters, to continue the family's tradition of "Exceeding our customer's expectations with a quality they can depend on."

Residential and commercial customers all across the valley soon took notice of their high quality work, refreshingly friendly service and rock solid integrity in everything they did, and they quickly become one of the most trusted electric & solar companies in the valley.
August 1999
First Solar Project
In 1999, our first solar panel installation was located at the East Mesa Library. We enjoyed that project so much, we decided to specialize in solar panel systems for homes and businesses moving forward.
commercial solar carport for church
Solar & Electric Continues to Grow
Solar technology was slow going at first, but we continued forging our path as one of few companies installing solar all across Arizona, completing several commercial and residential projects.

Combining our strong family values and a relentless work ethic, we quickly became Phoenix's most trusted expert electricians. And our residential electrical service customer base grew exponentially during this time as we became known as the experts in electrical troubleshooting, main electrical panel service upgrades and more - often being called in to fix or finish a job that another electrical contractor couldn't quite get right.
we are empire renewable energy's main solar panel installation installer
Empire Renewable Energy's Primary Contractor
As the primary solar electricians for Empire, we have successful completed dozens of projects from massive commercial solar installation, to solar carports, ground mount systems, residential homes and more. In fact, we wired and installed most of the Caterpillar Solar sites across Arizona, including a microgrid at the Caterpillar Proving Ground and a large solar parking canopy at Caterpillar Global Mining headquarters.

"Empire has awarded $3mil+ of work to Tom and we plan to maintain this successful relationship for years to come." -Don Herman, Project Manager, Empire

If a Billion-a-year revenue Fortune 500 company trusts us to install and wire their solar projects, you can have absolutely confidence and peace of mind with us installing solar on your home or business!
Arizona's largest commercial rooftop solar installation in Phoenix's Cowley refrigeration warehouse
Arizona's Largest Commercial Rooftop Solar Panel Installation
2.4 Megawatts on the roof of the 850,000 sqft. Fleming Warehouse, representing 6.5 acres of solar panels! In collaboration with Empire Renewable Energy (under our previous name, Buehler Brothers Electric), we successfully installed 7,872 Sunpower solar panels, the LARGEST commercial rooftop solar installation in Arizona.

"With rising energy costs, it just made sense to power this warehouse with clean, renewable energy while lowering our electricity bills," Mike Cowley, president, Cowley Companies.

> Click here to see the news article.
arnett insurance solutions rooftop solar
Present Day
Expert Solar Installation & Electrical Services continue...
While most of our work these days is commercial solar and residential solar installation, we also continue servicing the valley's commercial electrical maintenance and residential electrical service, and maintain a strong loyal customer base of those who have trusted us as their electrician in phoenix for over 2 decades!

4 generations and 100+ years of experience later, our commitment still remains the same - “Exceeding our customers' expectations with a quality they can depend on.”
Present Day

Rated "Best solar companies in phoenix"

Since our start in 1999, Watt Masters has remained a Top-Rated Solar Installer in Phoenix, AZ.

Frequently Asked Questions

Solar expertise requires more knowledge and experience. Master electricians require 7 years of experience or a B.S. and an examination. [xfield-company] power technicians design, install as well as maintain solar panels for commercial and residential sites all over the United States.

Electrical engineers design, develop, test, and supervise the manufacture of electrical components. They are responsible for designing the electrical circuitry of solar panels and supporting devices for panels, such as inverters and wiring systems.

Going solar is a smart investment that can help you save money on your energy bills for decades to come. But before you can install home solar panels, you need to make sure your electrical panel is ready to support them. In many cases, you won’t need a home electric panel upgrade for solar.

Installation. It’s possible to install solar panels on your own, but DIY solar installation requires serious know-how and tools. Some solar companies design solar panel kits targeted toward DIYers. However, these kits are often meant for small builds, such as converting a shed, RV, or boat.

about us - our story, experience and values

A letter from the owner, Tom Buehler


“Every day, we continue to strive to maintain our goal of ‘Exceeding the customers expectations with a quality they can depend on’.

Watt Masters is licensed, bonded and insured in Arizona for low, medium, and high voltage construction and service which includes electrical and Solar Photovoltaic Energy. We install and wire Solar Panels in homes, commercial sites, industrial sites, microgrids, on rooftops, ground mount solar, canopy mount, solar carports, and remote off-grid solar locations as well. In addition, we provide expert electrical services for residential home owners as well as commercial service.

Our electrical roots go back to Germany in the early 1900’s, when my grandfather began wiring the first electrical systems into homes. His son, and my dad – Rolf Buehler – was raised in the trade and led to him starting the company up in Long Island, New York after immigrating to the United States in the 1950’s – a cliche American Dream story…

When not in school, I was on the job learning how to skillfully install and repair electrical in homes and buildings. Being a German immigrant, my dad installed a seriously strong work ethic in me, which continues to this day over 40 years later. If you have a time sensitive or complex project my team and I have the experience and the leadership skills to make your project successful in a timely manner.

In 1987, I followed our family’s move to Arizona and began working for some of the valley’s largest electrical contractors at 18 years old. I quickly advanced to leadership positions, which I credit to my family’s strong work ethic, training and experience. But it didn’t take long for the entrepreneurial DNA in my blood to begin an itch to start my own business. In August 1999 at the age of 29, I started Watt Masters.

We successfully completed our first Solar Project in 1999 at the East Mesa Library. We enjoyed that project so much, we decided to specialize in it. Several commercial and residential solar installs later, in 2010 we completed a 2.4 megawatt solar energy project, the largest commercial rooftop solar panel installation project in all of Arizona!

We successfully installed several solar panel systems throughout Arizona before most of our current day competitors even existed…this is why we are often called, “the senior solar guys of Arizona”. A good name, some great customers and years later we have installed well over 50,000 solar panels across Arizona with great success.

Since the early 2000’s, it is this longstanding solar experience, quality workmanship and rock solid integrity that has earned us the position of exclusive solar installer for Empire Caterpillar Solar sites all over Arizona. If a Billion-a-year revenue Fortune 500 company trusts us to wire their solar, how comfortable would you be knowing we installed solar on your home or business?

In addition to solar, throughout the years we’ve also kept busy wiring backup power generators, residential electrical service upgrades, tons of residential electrical service and commercial construction. Our dedication to quality work has led us to some great customers and some great projects.

It’s never been about the money for us, it’s about the satisfaction of a job well done. It never mattered if there was not enough money in the bid, or the project was taking longer than we expected. It has always been about getting every project completed with the satisfaction of knowing we did a great job and our customer was happy. We all get a great feeling when those solar panels look perfectly straight on your roof, and they were wired in the correct way according to local codes, and any roof penetrations are tight and sealed properly.

We don’t outsource our electricians or solar installers, all of our workers are employees here.

We only like to hire the type of people that would have a hard time sleeping at night if any of those things were performed incorrectly. Every employee is told that they need to love what they do. If they do not love what they do, they are not going to do a good job, and they are not welcome here.

At Watt Masters you can guarantee that every time you call you can expect that we will provide you with expert Solar and Electric services that you can depend on. As always, we stand behind our integrity and quality workmanship with our solid 100% guarantee of workmanship.

We believe that it is because of our good values, dedication to ensuring our customer’s concerns come first and quality workmanship that we have remained in business when most other companies sadly have not stood the tests of time. We are extremely grateful to you, and all of our loyal customers that have called us again and again over the years.

Thank you for considering us as your choice for a commercial and residential electrician, or seriously experienced solar installation company in Phoenix, AZ and all of the surrounding cities. We guarantee you will be happy when choosing us, and that you’ll be confident to refer us to your friends and family.”

All my best,

Tom Buehler – President, Watt Masters

Contact us

Let's talk!

We look forward to speaking with you, answering your questions, and serving you for all of your solar and electrical needs!

Call Us At

(602) 485-7901

office hours

Weekdays 7am - 4pm

Send us a message