Lomonaco Coast Construction - Laguna Beach, CA United States. At Lomonaco Coast Construction we specialize in Customer Service. We want to build lasting friendships with our customers. Our Family owned and operated company offers 24 hour Plumbing Emergency Service & Repair, Faucet repair, Shower valve repair, Tub valve repair, Slow or backed-up drains, Drain cleaning, Leak detection, Reroutes, Copper & PEX re-piping, Water Heaters/ Tankless Heaters, Fixture installations, Gas leaks, Slab leaks, Water leaks, Drywall, Heating & Air, Electrical, Masonry, Remodels demo to finish. No job too big or too small. Give us a try and I promise we won't let you down. Serving all of the Orange County area like family.