Roof coating is the process of applying a thick, reflective liquid membrane over your existing roof to seal leaks, stop granule loss, and extend its life by 10–15 years. For Walnut Creek homes facing hot, dry summers and winter rain, a quality coating can delay a full tear-off and save you thousands. We assess your roof first, then apply a system that's warranted for your specific roof type.
Roof coating isn't a magic fix for a roof that's already rotting or sagging. It's a maintenance tool for roofs with 5–10 years of life left but with surface wear — granule loss, small cracks, or seams that have started to peel. We see a lot of 20-year-old asphalt shingle roofs in Rossmoor and Heather Farm that are still structurally sound but have lost their protective granules. A coating can buy them another decade if the decking is dry and the flashing is intact.
The real work happens before the sprayer comes out. We pressure-wash the roof to remove dirt and loose granules, then repair any blisters, punctures, or exposed fastener heads. For low-slope sections, we use a self-adhered membrane at the seams and around pipe boots before rolling on the coating. On steep-slope shingle roofs, we apply a silicone or acrylic product at 20–25 mils dry film thickness. Cost in Walnut Creek runs $3–$6 per square foot, depending on roof size, slope, and how much prep the surface needs. That's roughly $4,500–$9,000 for a 1,500-square-foot roof — about half the price of a full replacement.
When is coating the wrong call? If your shingles are curling, the decking has rot, or you've had repeated leaks, coating will just seal the problem in — you need a tear-off. We'll tell you straight up if that's the case. But for a roof that's sound underfoot, coating is a smart, low-disruption way to push replacement out years. It also reflects UV, which cuts attic heat in our 90-degree summer afternoons.
We've coated over 200 roofs in Walnut Creek since 2018, and we know which systems hold up in our climate — that's why we use only silicone and acrylic coatings with 10-year manufacturer warranties.
Our roof coating crews live and work in Walnut Creek, so they know how hot, dry summers and winter storms hit roofs here. Every job is handled by the same team from start to finish, and we back it with a written workmanship guarantee.
Roof coating carries a written warranty that covers peeling, flaking, and granule loss for up to 15 years—backed by the manufacturer, not just a handshake. We register every job with the coating maker so the coverage stays valid if you sell the home.
We cover your landscaping and driveway before the first tear-off, and we sweep with a magnetic nail sweeper every afternoon. You'll find no stray shingles, no rusted nails, and no reason to call us back.
We provide roof coating services across Walnut Creek, including Downtown, Rossmoor, Heather Farm, Castle Rock, and Green Valley, plus nearby communities like Lafayette and Danville.
Real work, real roofs — a sample of completed jobs