Serving Castro Valley, CA and surrounding areas
Approved
In business since 1988
Free estimates
Warranties offered
"Bay Valley called me shortly after I submitted a request. Joel, the estimator, was very knowledgeable, showing me how the house is built via the garage, noting that insulation did not need to be placed above the windows because the wood support beam filled the area (which another contractor seemed not to know), and mentioning how they would patch the vapor barrier (whereas another contractor said they couldn't repair). The price was very reasonable and he also mentioned ways that I could save money. The installers were very professional and the cleanup was fantastic. Because the house is vacant, I had them blow insulation from the inside and the house hasn't been so clean in a long time. Also they swept outside, cleaning the mess the window contractors had also left. I recommend Bay Valley. They did a fantistic job."
















































