Mast Roofing
Company Overview
Mast Roofing provides the finest remedy for your roofing issues. Commercial roof restoration is our forte, and we are familiar with every aspect of your roof as we have encountered a wide range of configurations and issues and have found effective restoration methods.
Experience counts— we have been dedicated to providing sustainable, energy-saving solutions for flat, low-sloped, and other commercial roofing types since 2003. We are authorized to operate in five states, with California being one of them. Bringing more than 20 years of general construction experience, we offer the stability you seek in a roofing contractor, including complete projects and over 12 years as certified, licensed, and bonded commercial roofing experts.
Samuel Mast, brings a deep-rooted family history in construction. Before moving west, the Mast family resided in the Amish communities of Pennsylvania and Ohio, where barn and house-raising was a shared tradition. Along with practical construction skills, Samuel developed a strong work ethic, high moral standards, and a sense of duty to his community. These principles are fundamental to every interaction this company undertakes.
Business Services
- Roof inspection
- Roof repair
Business Location & Hours
Mon: | 7:00 AM - 6:00 PM |
Tue: | 7:00 AM - 6:00 PM |
Wed: | 7:00 AM - 6:00 PM |
Thu: | 7:00 AM - 6:00 PM |
Fri: | 7:00 AM - 6:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

Quality work, great communication and trustworthy. I can't say enough good things about this company. They were one of only two in the area that would take on my roof after someone made a mess of the job. They went above and beyond and were great to work with. Kind, considerate, and went the extra mile to do right by someone who had been taken advantage of by a different roofer. They were recommended to me by a friend and I am grateful.

Mast roofing put a blue metal roof on my home as it was rebuild after the Carr Fire. Their price was well below some of the competitors and the workmanship was very good. They were very nice and responsive to my calls and concerns. I would highly recommend them.
Pat J.

Mast Roofing is outstanding. I was having trouble getting a company to bid or repair my patio cover. They were booked out several months, they put me on the calendar came when they said they were going to. they kept in contact they went above and beyond in the completion of the roofing of my patio. I would highly recommend them for your roofing needs.

They were not booked out as far as some of the other roofers in town. Very professional, great to work with, and reasonably priced.

The Mast brothers are great. They were half of another roofing company bid and went beyond what they needed to do. Great and dependable company that I completely endorse.

I can't say enough good things about the crew and owners. Very professional, courteous, hard working. I'm a homeowner and was very pleased that that treated my roof as if it were theirs or a palace.
Highly recommended.
C Watts

Mast Roofing just completed re-roofing our Graeagle Community Church which is located in a rural Northern California area.
This project presented a number of challenges for the roofing crew due to the various slopes and angles of the roof ranging from flat, 4/12 to almost vertical. After a day or two into the project it was obvious to me that this wasn't a real challenge to these guys at all. There was also a number of thunderstorms, which caused some delays, but that didn't deter these guys. They even worked through some torrential downpours knowing that blues skies where on the horizon.
The one thing that impressed me the most from this crew was their attention to detail. There was a couple of times that I noticed some of the younger crew members run into an obstacle and they didn't just forge forward but stopped and asked their supervisor where to go to from there. I know some people in different trades that would snatch these guys up in heartbeat because of their work ethic and commitment to their job.
From all of the research and comparisons i've done prior to going with the seamless coating, I believe that this application will last for many, many years to come. Our area sees extreme weather changes from severe thunderstorms, extreme temperature changes, heavy snow and ice to hot direct sunlight. I feel confident that this seamless coating will go the distance.
Our thanks to Mast Roofing, David and his crew, for an awesome job well done.

Guys came out to our commercial building and where the most professional roofing team I ever dealt with as a manager. I highly recommend these guys if you want the job done right and they are very far on there pricing. 10 thumbs up.

The old part of my high end custom cabinet shop was leaking worse by the day. I'd tried to fix it several times with roof goop but the leaks seem to magically travel under the surface of the combination of curved metal, low pitch built up, and single pitch metal. The local commercial roofers wanted to tear it all off and rebuild the whole roof. Then I received a flyer from Mast Roofing which looked like it might be the answer. After a consultation from Samuel Mast, I signed their bid and they went to work. It wasn't cheap, but a lot better than rebuilding the roof.
Every seam, penetration, and transition between roof lines and roof types was reinforced with fabric like the layup of fiberglass on a boat. The coatings were applied, with the option to include two inches of spray polyurethane foam for some added R value. The result was an air tight waterproof roof. No more discovering expensive cabinets had gotten wet in the night. Moreover, we saved money every month on our heating, and the building felt warmer in winter, and cooler in summer.
We had one callback for a very minor issue which was corrected immediately. And that was 12 years ago and the roof is still perfectly functional. I highly recommend Mast roofing for your commercial building.