Insulation Contractor in Ben Lomond - Warm, Dry Homes Under the Redwoods
Premier Santa Cruz Insulation Services insulates attics, crawl spaces and basements in Ben Lomond, CA. We clear out old or damp insulation, seal the gaps and add new insulation so drafty valley homes stay warmer and drier.

- Licensed and fully insured.
- Free on-site estimates.
- We reply within 1 business day.
Valley homes and cabins across Ben Lomond
Most of the houses I walk through in Ben Lomond are older cabins and cottages that started out as summer places and got winterized one room at a time, plus newer homes set into hillside lots. A lot of them sit under tall trees, so the sun barely reaches the roof or the ground under the house for much of the year. As an insulation contractor based in Santa Cruz, CA, I see more mixed-up attics and crawl spaces up the valley than almost anywhere else, with a little of every decade's insulation stacked in one house.
We work across the county, from Scotts Valley next door to over the hill in Santa Clara, where the lots are flatter and sunnier and the job looks different. Up here, shade and damp ground decide the order of the work, so I usually start under the house before anyone touches the attic.

Our services in Ben Lomond, CA
- Crawl space vapor barrier
Shaded lots keep the dirt under a lot of Ben Lomond houses damp, and that moisture rises into the floor framing and any insulation hung there. We lay a vapor barrier, a heavy plastic sheet sealed over the ground, so the crawl space dries out before anything else goes in.
- Crawl space insulation
Cold floors are what I hear about most from cabin owners here, because many raised floors were never insulated or the old batts have sagged onto the dirt. We pull what's fallen, deal with the damp first and fit new insulation snug to the underside of the floor.
- Basement insulation
Homes built into a slope here often have a lower floor with one wall against the hillside, and that wall stays cool and damp most of the year. Our basement insulation work starts with checking that wall for water, so the insulation we add handles the moisture instead of trapping it.
- Insulation removal
Older attics and crawl spaces up here often hold insulation that rodents have nested in or that got soaked by a roof leak years ago. We take that out first, because new material laid over droppings or damp just hides the problem.
- Attic air sealing
Cabins that grew room by room tend to have gaps around chimneys, pipes, old light fixtures and the attic hatch, and warm air slips right out through them. We do the air sealing, closing those gaps, before any insulation goes down so the new layer isn't fighting a draft.
- Attic insulation
Many attics here have a few inches of old fill, piled deep in the middle and thin at the edges where the ceiling loses the most heat. We even it out with blown-in insulation, loose fill blown through a hose, and keep the eave vents clear so the attic can still breathe.
What damp shade means for Ben Lomond homes
Under the trees, the ground and the north side of a house can stay damp from fall well into spring, and that damp works its way into crawl spaces, the wood the house sits on and any insulation touching it. Wet insulation barely slows heat at all and holds moisture against the framing, so I look under the house first and we sort out the water, the vapor barrier and the vents before we insulate. That order matters, because insulating first would just cover the problem until it shows up in the wood.
What moves the price here is mostly what's already in your house, like whether old insulation has to come out, how tight the attic or crawl space access is and whether we use foam or loose fill. Foam costs more and seals air as it insulates, but on most cabins sealing the gaps and topping up loose fill makes more sense, unless your ductwork runs through the attic or crawl space. The schedule turns on those same things plus any permit the County needs, and I'll go over all of it with you at the estimate.
Get your free insulation estimate in Ben Lomond
Send the form or call (831) 201-6061 and we'll get back to you within one business day to set a time. I come out to your Ben Lomond house myself, look at the attic and crawl space, and check with the County on permits, with no obligation to go ahead. If your job needs a permit, we take care of it and tell you up front.
Insulation work, start to finish
Ben Lomond insulation questions answered
Who handles permits for insulation work in Ben Lomond?
The County of Santa Cruz does, because Ben Lomond sits in the unincorporated part of the county, where the County provides building permits and inspection. Its Unified Permit Center issues building permits along with zoning and other permits. We check with the County for your address, and when a permit is needed we take care of it and tell you up front.
Can I use the County's online EZ Permit for insulation in Ben Lomond?
The County's EZ Permit list doesn't name insulation, so the Unified Permit Center is the place to ask whether your job fits. EZ Permits are for single-trade projects that don't change any walls, and the County's examples include water heaters, windows, siding and some re-roofing. When one does apply, it can be processed, paid for and printed online, and we'll find out which route your job takes before work starts.
How much does insulation cost for a Ben Lomond home?
There's no honest single number, because the price here turns on what has to come out, how much space we're covering and how hard it is to reach. Removing soaked or rodent-soiled insulation, laying a vapor barrier and crawling through a low space all add to it, while sealing gaps and topping up sound old fill keeps it lower than foam. I'll walk you through each choice at the estimate so you can decide what's worth doing.
What causes cold floors in older Ben Lomond homes?
Usually it's a raised floor over a damp crawl space with little or no insulation, or old batts that have dropped onto the dirt. Air also leaks up through gaps around pipes and along the edges of the floor, so you feel drafts even where some insulation is left. We fix the damp, seal those gaps and then insulate under the floor, in that order.
What can winter storms do to insulation in Ben Lomond?
The County warns that El Niño winters can bring heavy rain, flooding, fallen trees and hazardous road conditions, and any of those can end in wet insulation. A falling limb can open a roof leak that soaks attic fill, and standing water can sit under a raised floor for weeks. After a big storm it's worth a look in the attic and crawl space, and if the roads up the valley are rough we'll set a time that's safe to get there.
How long does an insulation job take in Ben Lomond, and do we have to leave?
Most loose-fill attic jobs are something you can stay home through, while removal or spray foam takes longer and asks more of you. Foam comes with a re-entry time, the wait before you, the kids and the pets can come back inside, and we'll tell you what it is before we start. The length of your job depends on the size of the space and what has to come out first, and I'll lay that out when I see the house.




