Spray foam insulation in Watsonville CA - a sealed attic over a sound roof

Most calls I get start with a room that won't stay comfortable or a power bill that keeps creeping up, and a lot come from people who just bought an older place and found a thin, tired layer in the attic that sometimes needs insulation removal before anything new goes in. The price moves with how many square feet we're covering, which foam the job calls for, how hard the attic is to reach and whether old material comes out first. The schedule turns on any roof repair and on when you can be out of the house. I'll come look and write your number up from what's actually up there.

Before we spray under a roof, I go up and look at the roof deck for leaks, because foam over a leak just hides it. Then comes the prep, and it works like setting up your station before you cook. Our crew lays down covers, masks off what shouldn't get foam, closes off the rest of the house and pulls any old insulation that's soaked or full of droppings, since new material over a mess keeps the mess. We spray in even passes and carry the same depth out to the edges and corners, because thin foam at the eaves is where drafts get back in. You and the pets stay somewhere else while we work, and I'll find out the re-entry time for the exact product we're using, so you know when you can come back in. When the foam's done, we clean up so the house looks the way we found it.

Foam isn't the right call for every attic, and I'll tell you so. It costs more and seals air while it insulates, which pays off when your ductwork runs through the attic. If it doesn't, sealing the gaps around lights, pipes and the hatch and topping up with blown-in insulation, loose fill blown in through a hose, usually wins, and our attic insulation work covers that route.

For a house inside Watsonville city limits, the city's Building Division reviews construction plans and inspects work while it's underway to check it against the building and fire codes, and most residential plans can be checked over the counter on Wednesdays from 8 to 11 AM. Whether your foam job needs a permit is something we check with the office that covers your address before we schedule, and when it does, we pull it and line up the inspections. The city also lists Watsonville in Climate Zone 4 under the state Energy Code, and each zone's climate sets the minimum efficiency the code asks for, so the minimums that apply to your house are Zone 4's.

We're based in Watsonville and also work in Gilroy and plenty of the cities around us. Many attics we open around here belong to older houses with tired insulation and ducts running through the space, so the question at the estimate is usually whether foam under the roof makes sense or a cheaper top-up will do. We see the same setup on jobs in Santa Cruz and Salinas, and the plan runs the same way there.