Meet the Team - Mercer Roofing Co Woodland Hills

Meet the Woodland Hills Team Behind Mercer Roofing Co Woodland Hills

The crew serving Woodland Hills, Calabasas, Tarzana, and the west Valley is small by design. We’re not a dispatch center with rotating strangers. We’re the same handful of people who show up, climb the ladder, and put their name on the work. Founded in 2000 as part of the Threshold Group family, this Mercer Roofing location runs on a simple rule: the person who quotes your roof is the person who knows your roof. Below are the people you’ll actually see at the door, badge in hand.

Call (341) 217-2677

Our People

Grant Whitlock, Owner and Project Lead

Grant founded this Mercer Roofing Co Woodland Hills location and still walks every roof before a quote is written. He grew up in the Valley and has been on Southern California roofs long enough to know exactly where Woodland Hills heat breaks down flashing on south-facing slopes. His specialty is diagnosis: identifying whether a leak is a repair or a re-roof, and telling you straight which one it is. Off the roof, Grant keeps a 1968 Ford pickup that leaks exactly one drop of oil per week, which he claims is “just enough to know it’s still alive.” Every written price in Woodland Hills goes out under his name, and he reads every one before you do.

Marcus T., Lead Technician

Marcus runs most repair jobs in Woodland Hills, Encino, and Sherman Oaks. He’s the guy who shows up with a sealed bag of ridge cap shingles and a flashlight even when the job is “just a quick look.” His specialty is tile and flat-roof transitions, which fail differently in the Valley heat than they do by the coast, and Marcus knows both failure modes cold. He’s background-checked, identity-verified, and will hand you his photo ID before stepping onto the property. When he’s not on a roof, Marcus coaches his daughter’s AYSO team in Winnetka, which means he’s unfazed by wind, sun, or shouting.

Elena R., Service Coordinator

Elena answers the phone when you call (341) 217-2677, and she’s the reason you won’t get a voicemail at 2 a.m. She schedules every estimate, sends the technician’s name and photo before arrival, and keeps the warranty files straight so the 365-Day Done Right Promise is easy to honor. Elena has worked with home-service crews for over a decade and can tell you whether a mystery ceiling stain sounds urgent or can wait a week, which saves homeowners real money. She has a rescue greyhound named Biscuit who appears on exactly one Zoom call per year, to the delight of everyone but Grant.

DeShawn P., Senior Installer

DeShawn leads full roof installations and re-roofs for Mercer Roofing in Woodland Hills and the surrounding neighborhoods. He’s been tearing off and laying shingles since he was nineteen, and he works with GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral systems. His specialty is steep-slope safety and ventilation planning, which matters more in the San Fernando Valley than most homeowners realize. When attic heat hits 130 degrees in August, poor ventilation doesn’t just shorten shingle life, it cooks the whole house. DeShawn is quiet until you ask him about ridge vents, and then he isn’t. He also plays bass in a cover band that has never once been asked to play a roofing convention, which he finds deeply unfair.

One Standard, Every Job

Every person on this page works under the Threshold Verified standard, which is the same framework Mercer Roofing locations follow across the network. It’s not a slogan. It means background checks and identity verification for every technician, a clean marked uniform, and a photo ID badge presented at the door before any work begins. The name and photo of whoever is coming to your Woodland Hills home are sent to you before they arrive. And that is the point: the badge isn’t just a credential, it’s a promise about who you’re letting onto your property. Grant and the crew treat the badge as a contract. The written price before any work starts, the written guarantee on every repair, and the 365-Day Done Right Promise all flow from the same idea. This is a crew that holds itself accountable by name, not by logo.

Written by Grant Whitlock, Owner at Mercer Roofing Co Woodland Hills, serving Woodland Hills since 2000.