Gen819 Roofing & Solar
Company Overview
Since 2009, Gen819 Roofing & Solar has been dedicated to re-roofing structures across Southern California with skilled, trained, and experienced teams. We focus on metal roofing solutions and TPO membrane roofing for commercial projects. All of our workers are insured and legally compliant.
As a certified installer, we partner with top material manufacturers, including GAF. Our specialization extends to standing seam metal roofing for residential and commercial customers.
With a skilled solar division, Gen819 Roofing & Solar caters to clients from small residential setups to large industrial solar PV projects, including carport shade structures. In 2003, Marcus Maedl began his journey in solar PV project development in Germany. Our clientele consists of institutional and private investors engaged in commercial and industrial solar projects.
Marcus Maedl assumed the position of Regional Manager for Suntechnics (Conergy Group) in 2006.
Marcus Maedl launched ""Applied Technologies - Energy Solutions"" in 2007 as a subsidiary of Applied Technologies.
In 2009, he founded maedl.solar.inc and Gen819, the residential division.
By 2011, Maedl Solar was rebranded as Generation819 Inc, and began installing in new home communities.
In 2012, Gen819 installed solar systems in over 500 new residences in SoCal.
In 2013, Gen819 began offering residential leases, loans, and power purchase agreements in partnership with financial institutions.
In 2014, Gen819 merged with SDF Roofing, expanding its offerings to include residential and commercial roofing, with a focus on metal and TPO roofing.
In 2015, Gen819 Roofing & Solar introduced energy storage and backup power solutions.
In 2018, Gen819 Roofing & Solar was recognized as the installer of the quarter for CeDur synthetic shake products. Team Gen819 Roofing & Solar is licensed (B-General Contractor, C-39 Roofing & C-10 Electrical), bonded, and fully insured. We maintain our own crews in SoCal and along the central coast. All of our crews are employed, insured, and covered by worker's compensation.
Marcus Maedl, the founder, has two decades of experience in supply chain management, silicon wafer production, solar PV, and roofing.
At Gen819 Roofing & Solar, we prioritize excellence and customer satisfaction. Our goal is to gain your trust and business by providing top-quality products and services at all times.
Business Services
- Roof cleaning
- Roof inspection
- New roof installation
- Roof repair
- Roof replacement
- Reroofing
- Skylight installation
- Add to existing system
- Add solar panels on roof
- Add solar shingles on roof
- Solar system installation
- Solar shingle installation
- Solar system maintenance
- Solar system repair
Business Location & Hours
| Mon: | 9:00 AM - 5:30 PM |
| Tue: | 9:00 AM - 5:30 PM |
| Wed: | 9:00 AM - 5:30 PM |
| Thu: | 9:00 AM - 5:30 PM |
| Fri: | 9:00 AM - 5:30 PM |
| Sat: | Closed |
| Sun: | Closed |
Recommended Customer Reviews
Awesome company! After comparing many options and prices Gen819 Roofing and Solar is the choice that you want to make.
Marcus Maedl (the owner) is very knowledgeable and explains every option in detail to you. He works with you to suit your wishes and needs to give you the best price possible.
The process went smoothly from permits over installation to the check mark of the city inspector and was finished in a timely manner. I'd work him and his team anytime again and referred him to many other clients that only had good experiences. Small company but very competitive for quality work!
Their responsiveness and professionalism is outstanding and while we ultimately chose a different path, I recommend the business without hesitation.
Marcus suggested a more cost effective solution to replacing all of our cement tiles, and integrated solar into the roof so it's lower profile. We felt we got a fair price and the entire Gen819 team was very polite and responsive via phone and email throughout the whole process. The workers were respectful and did a good job keeping things clean. We would definitely recommend this company!
Filippo G.Marcus and his team have been great.
The recommendations on the size of the system and the upgrade roof installation made the system hidden with the original tiles and looks great, much better than the standard installation on top of the original roof. Price was also great and customer service is amazing .
Thanks Gen819
Gen819 helped to add a new breaker box to my guest unit so I could add panels to warm up my pool. Very professional and made every effort to run the electrical in a way that was out of view. Then painted all the medal to blend into the walls and roof. Really great work!
Brianne C.Marcus and his crew were great! Super responsive during the sales and installation process, and they even followed up after the work was completed to make sure everything was going as planned! They did great work and I would highly recommend them. Thank you!
Gen819 just finished repairing my roof which had been in place for over 30 years. Their team of workers did a good job, worked tirelessly and cleaned up every day before going home. The new roof looks good and comes with a lifetime warranty. I appreciate the high quality of the experience.
Stan S., Rancho Penasquitos
Phyllis S.The professional approach taken by Marcus Maedl in visiting with us and sharing his expertise on roofing was very much appreciated. Though we ended up selecting a different company [for ease of coordination with an already selected solar contractor], I was left with the feeling that we would have been in very good hands with Generation 819.
Top shelf all the way. We absolutely recommend Marcus and the crew at Gen 819 for any roofing and solar needs. Marcus was incredibly responsive to our needs and expectations. The work crew was efficient and clean from the get-go. Do yourself a favor and, at the very least, get a quote from them. You won't be disappointed. If we could give 10 stars, we would. Love these guys!
Katy H.Generation 819 and Marcus were wonderful to work with. They were on time, professional and did and excellent job. I would recommend them for all roofing and solar jobs. They are great.

























