Cali Building Pros (California Building Professionals) is a family-owned, licensed roofing contractor based in Tujunga, CA, proudly serving homeowners and businesses across Los Angeles, the San Fernando and San Gabriel Valleys, the Inland Empire, and Orange County. We specialize in roof installation, repair, and replacement for metal, tile, shingle, and flat roofing systems. Every project is backed by a workmanship warranty and managed through direct communication with our experienced project team from start to finish.
Need a roof inspection now? Call (818) 688-4943 — you’ll talk directly to a project manager, not a call center.
Business name | California Building Professionals (Cali Building Pros) |
Founders | Jirir “Jay” Wosgerijyan & Sevada “Matt” Babakhani |
In business since | 2014 — family roofing roots, reorganized as a corporation under our current license |
License | CSLB #1150891 — licensed, bonded, and insured (general liability + workers’ comp) |
Projects completed | 650+ roofing projects since 2014 (500+ replacements, 150+ repairs) |
Headquarters | 7006 Foothill Blvd., Tujunga, CA 91042 |
Service area | 60-mile radius of Tujunga — LA, San Fernando Valley, San Gabriel Valley, Inland Empire, Orange County |
Specialties | Metal, tile, shingle, and flat roofing; commercial roofing; roof replacement, repair, and emergency service |
Warranty | Labor warranty plus manufacturer-backed warranties; transferable options available on many systems |
650+ roofing projects completed since 2014, across replacement and repair work for homes and businesses throughout our service area.
Roof type | Completed |
300+ | |
100+ | |
50+ | |
Nearly 50 |
Repair type | Completed |
Chimney, skylight, and vent penetration/flashing repairs | 50+ |
Fascia and eave repairs | 50+ |
Emergency tarping and mastic sealing | Dozens |
See these numbers in action: browse our project gallery →
Cali Building Pros’ roots go back to 2014, when our fathers were already running roofing crews across Los Angeles. Co-founders Jirir “Jay” Wosgerijyan and Sevada “Matt” Babakhani — Jay goes by his first name on the job, Matt goes by his middle name — grew up on those jobsites and learned the trade hands-on — tearing off old roofs, learning flashing and underlayment, figuring out what actually holds up in Southern California heat, wind, and the occasional wildfire ember storm — long before either of them wrote a business plan.
When it came time to take over, we didn’t start from scratch. We reorganized the business as California Building Professionals and earned our own contractor’s license so we could run it our way. Only after years on the tools did we move into project management: coordinating crews, pulling permits, and overseeing jobs from the first inspection to final walkthrough.
That order matters. Most homeowners can tell within five minutes whether the person quoting their roof has actually been on one. Because we came up as installers first, we know what a rushed job looks like from the ground — and we built the company specifically to avoid becoming one of the crews that cuts corners once the estimator leaves.
Today, that means every customer works directly with the people managing their project, not a sales rep who hands the job off to a subcontractor. Whether that’s Jay and Matt directly or one of our project managers — like Leo and Steven — the same standard applies on every job. We call this “hands-on before hands-off,” and it’s the reason our estimates tend to be more specific — and more honest — than the standard sales pitch.
Co-Founder
Co-Founder
Project Manager
Project Manager
You talk to the project manager or owner throughout the job — not a rotating call center.
We quote based on the actual condition of your roof, not a standard upsell script. No hidden fees, no manufactured urgency.
CSLB #1150891, with active general liability and workers’ compensation coverage, so you’re protected if anything goes wrong on the job.
Labor warranties on top of manufacturer warranties, with transferable options on many systems — useful if you sell the home before the roof’s lifespan is up.
Metal, tile, shingle, and flat roofing systems for residential and commercial properties, plus repair, replacement, and emergency service when a roof fails without warning.
We’re based in Tujunga and work throughout a 60-mile radius, including the Los Angeles area, the San Fernando Valley, the San Gabriel Valley and Inland Empire, the Foothill communities (Sunland, La Crescenta, Montrose, Pasadena, Altadena), and Orange County. See the full list of cities we serve →
Our roots go back to 2014, when our fathers were already roofing homes across Los Angeles. We learned the trade from them, and when we took over, we reorganized the business as California Building Professionals and earned our own CSLB license. That’s over a decade of family roofing experience behind every project we take on today.
Yes. We hold California contractor’s license #1150891 and carry both general liability insurance and workers’ compensation coverage. We can provide documentation of active status on request before any work begins.
Yes. Our fathers started the business in 2014, and co-founders Jay Wosgerijyan and Matt Babakhani grew up learning the trade directly from them. When they took over, they reorganized it as California Building Professionals, and both remain directly involved in every job alongside project managers Leo and Steven — from estimate to final walkthrough.
You work directly with our project managers and owners. We don’t hand jobs off to a rotating cast of subcontractors — the same team that quotes the job manages it through completion.
We serve a roughly 60-mile radius around our Tujunga headquarters, covering Los Angeles, the San Fernando and San Gabriel Valleys, the Inland Empire, and Orange County. See our full areas-served page for a city-by-city list.
Yes. All work is backed by a labor warranty in addition to manufacturer-backed warranties on materials. Many roofing systems also qualify for transferable warranty options, which can add resale value.
Yes, we offer flexible financing options for roof replacement and repair. Contact us for current plans and terms.
Jay, Matt, Leo, and Steven run every project start to finish — reach out and you’ll hear back from one of them directly.
We offer a wide range of roofing services, including Metal Roofing, Shingle Roofing, Tile Roofing, Roof Replacement, tailored to meet the specific needs of both residential and commercial properties.