Crawl Space Services in San Francisco, CA
San Francisco's cool fog and older raised foundations make crawl space moisture and cold floors common.
Crawl space care in San Francisco, CA
On the West Coast and in the Northwest, wet winters, marine fog and hillside lots keep soil damp and push water toward raised foundations. Many older homes have vented crawl spaces with little insulation, so floors are cold and wood stays damp. Drainage, a good vapor barrier and insulation make a clear difference.
- Wet wintersMonths of rain keep the soil soaked and water moving toward the foundation.
- Marine fogCool damp air settles into vented crawl spaces.
- Hillside lotsRunoff can flow toward and under the house.
- Cold floorsUninsulated floors over damp crawl spaces feel chilly all winter.
Homes all around San Francisco
Crawl Space Guru inspects, repairs, seals and dries crawl spaces for homes in Noe Valley, Sunset District, Marina and Pacific Heights and the streets between them. A quick look at one problem or a full encapsulation: we start by listening to what you have noticed and then go and see for ourselves.
Three steps from your call to a dry crawl space
- We listen and lookYou tell us what you have noticed, and we inspect the crawl space under your San Francisco home with a camera and a moisture meter.
- You see the planPhotos, readings and a ranked plan show what to fix first, and you approve the work before it starts.
- We fix and finishCareful work, a clean finish and a walkthrough, so you know the space is dry and the job is done.
Services people ask for in San Francisco
Interior Crawl Space Drain SystemA perimeter drain that collects water and sends it to a sump.See the service 
Crawl Space WaterproofingA drainage, sealing and pumping plan that keeps liquid water out for good.See the service 
Sump Pump Installation and ReplacementA reliable pump in a sealed basin that clears water before it spreads.See the service 
Vapor Barrier InstallationA heavy liner that stops ground moisture from rising into the house.See the service 
Floor Insulation InstallationFresh insulation under the floor for warmer rooms and lower energy use.See the service 
Crawl Space Mold RemediationSafe removal of mold, followed by the moisture fix that keeps it away.See the service Good to know
Why are my floors cold over the crawl space?
Cold air and damp, uninsulated floors pull heat out of the room above. Sealing the crawl space and insulating the walls or floor reduces drafts and helps floors stay comfortable.
Which parts of San Francisco do you cover?
We work across San Francisco, including Noe Valley, Sunset District, Marina and Pacific Heights. If you are nearby but not on the list, call 800-224-9245 and ask.
How do I get a quote?
Call or text 800-224-9245, or send the form on this page with a few details and photos of the vents or the access door. We reply with clear next steps.
Can I start with just an inspection?
Yes. An inspection with photos and readings is a good first step, and you decide what to do next.
Also working in
A drier home in San Francisco
Call or text, or send the form. Tell us what you have noticed and we will tell you how we would handle it.