Gen819 Roofing & Solar
Company Overview
Since its inception in 2009, Gen819 Roofing & Solar has been committed to re-roofing properties throughout SoCal using knowledgeable, trained, and proficient crews. We specialize in metal roofing and commercial TPO membrane systems. Our workforce is insured and adheres to all legal requirements.
Gen819 Roofing & Solar is a certified installer for major material manufacturers like GAF. We also excel in standing seam metal roofing for both residential and commercial clients.
Our solar division is highly trained and experienced, providing services for clients from small homes to extensive industrial solar PV projects, including carport shade structures. Marcus Maedl started his career in solar PV project development in Germany in 2003. We serve a diverse clientele, including institutional and private investors in commercial and industrial solar initiatives.
Marcus Maedl assumed the position of Regional Manager for Suntechnics (Conergy Group) in 2006.
In 2007, Marcus Maedl founded ""Applied Technologies - Energy Solutions,"" a subsidiary of Applied Technologies.
In 2009, he created maedl.solar.inc and Gen819, which serves the residential market.
In 2011, the company rebranded to Generation819 Inc and began its work in new home communities.
In 2012, Gen819 installed solar systems in over 500 new residences in SoCal.
In 2013, Gen819 collaborated with finance partners to provide residential leases, loans, and power purchase agreements.
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 have dedicated crews serving Southern California and the central coast. All of our crews are employed, insured, and covered by worker's compensation.
With 20 years of experience in supply chain management, silicon wafer manufacturing, solar PV, and roofing, Marcus Maedl leads Gen819.
Gen819 Roofing & Solar stands for quality 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
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.
*REVIEW PURELY BASED ON BID PROCESS*
Brent in sales was very responsive and professional and provided us with one of the most honest and complete quotes we received.
The owner himself followed up.
In the end we decided to go with someone that could install some specialty items that we were looking for.
I'd reach out to them for any other roofing needs in the future.
Jill L.The Generation819 roofing company did an excellent job with our roof. We had multiple contractors come out for an estimate, and the combination of the materials, pricing, and warranty made us go with them. They used good, quality materials. The workmanship was great and they have an amazing warranty on both the product and their work. They had great communication throughout the project. Any time there were any issues they addressed immediately and fixed. I had a very good experience with them overall, and the roof looks excellent and I know it will last for many years. Thank you for a job well done!
Bryan M
You never reached out to me- stop lying again please.
Have some basic ethics, character.
Greg C.Quality service, great prices, hassle-free process.
They make it very easy to do business. Sun power panels and great pricing. Couldn't have made it easier to go solar.

























