For over 22 years, Bay Area Moisture Control has been the Bay Area’s leading expert in crawl space encapsulation, basement waterproofing, and moisture remediation. Our licensed technicians install industry-proven systems—including sump pumps, interior French drains, dehumidifiers, and heavy-duty vapor barriers—designed to eliminate water beneath your home, prevent mold growth, improve indoor air quality, and protect structural integrity.
We inherited a long-standing crawlspace moisture problem, but Bay Area Moisture Control resolved it so thoroughly—and beautifully—that I found myself willingly crawling around a space I’d never dared enter before.
After years of failed fixes and costly attempts to stop basement water issues, Bay Area Moisture Control finally solved the problem with expert diagnosis, fair pricing, and flawless workmanship—and for the first time, we made it through a wet winter completely dry.
We had a musty smell coming from under the house, and Bay Area Moisture Control quickly diagnosed it, recommended only what we needed—a vapor barrier—and delivered professional, courteous service we’d gladly recommend to anyone.
Be cautious of contractors who push “sign-today” or “limited-time” discounts in exchange for an immediate decision. That tactic is often used to stop you from comparing bids or fully understanding your options.
At Bay Area Moisture Control, we believe in transparency, education, and trust. Our process starts with a thorough evaluation to identify the real cause of your moisture problem, not a rushed recommendation.
We take the time to explain what is happening under your home and what solutions actually make sense. That way, you can compare options, ask smart questions, and choose the right solution with confidence, without pressure or sales games.
Bay Area Moisture Control is your go-to Bay Area company for:
Urgent emergency services available (8am-4:30pm).
Craftsmanship, quality materials, enduring solutions.
See for yourself the quality workmanship of actual before and after photos of Bay Area Moisture Control water damage prevention and remediation projects.
We are the Bay Area's #1 sump pump experts for sales, installation, and service.
We specialize in crawl space water vapor barriers and encapsulation.
Our Basement Water Diversion systems will solve your leaky basement problems.
Menlo Park
"When we bought our current home, we inherited a moisture issue in our crawlspace that had existed for years. I got a reference for Bay Area Moisture Control from a contractor who had gone to them when he himself needed to deal with a similar issue. ...And, wow - the finished product is truly beautiful. My dirty crawlspace is so pristine that I actually went down there and crawled around - I would NEVER have set foot in there previously."
San Jose
"We had a musky smell coming from under the house. We called for an evaluation. Met the evaluator and instantly felt a connection. He didn’t try to sell us extras. We only needed a vapor barrier and no pumps. The crew was very professional, courteous and did an amazing job. This customer had a POSITIVE experience with this business. This customer WOULD recommend the business to a friend, family member, neighbor or colleague."
San Carlos
I cannot recommend Bay Area Moisture Control enough. We’ve had water problems in our basement, we have two sump pumps, and we installed a French drain in our crawl space. We spent lots of money without a solution to the problem, and we got estimates and proposals from many companies along the way. None of these helped. Bay Area Moisture Control took the time to figure out how to resolve our water issues. They installed a sump pump in our basement and a complicated piping system, and we’ve now gone through a very wet winter without any problems! And even better the prices are super reasonable, the workmanship was excellent, and Nory was responsive and really took the time to figure out our problem. We’re grateful that this company exists."
Berkeley
"This company is fantastic. From the initial inspection, to the communication with the office, and finally to the execution of the work, the experience was nothing short of perfect. Bay Area Moisture Control installed a trenched sump system, followed by a CleanSpace encapsulation of my roughly 1800 square foot dirt crawlspace. I just spent 45 minutes crawling on my stomach and squeezing between ducting and floor joists to inspect their work, and I am super pleased with what they did. These days it is hard to have expectations surpassed, but that is exactly what BAMC did for me. I will no longer dread wet winters!"
We provide wet crawl space and wet basement solutions throughout the Bay Area.
Basement water infiltration is not an uncommon problem. We at Bay Area Moisture Control encounter this issue fairly regularly. When a property has portions (basement, crawlspace, other) of its structure below outside grade, water has a natural tendency to infiltrate via hydrostatic pressure. Call our office at 415.884.0500 for a free evaluation so we can help provide a solution to your water intrusion.
Crawlspace water infiltration is not an uncommon problem. We at Bay Area Moisture Control encounter this issue fairly regularly. When a property has portions (basement, crawlspace, other) of its structure below outside grade, water has a natural tendency to infiltrate via hydrostatic pressure. Call our office at 415.884.0500 for a free evaluation so we can help provide a solution to your water intrusion.
Unfortunately, we cannot. Every situation is unique, and we need to perform an on site evaluation in order to properly assess and develop a situation that fits your home’s needs. There are too many variables to be able to devise a solution with just a phone call. Please call our office at 415.884.0500 for a free evaluation so we can determine what would be best for your situation.
If you hear your sump pump alarm it most likely is an indicator of two things. Either your power is out or the pump finally kicked the bucket. Please see our blog post for further details on how to handle this situation.
Yes, all pumps require electricity to work. We recommend a dedicated circuit be set up for a sump pump. It’s not uncommon to use an extension cord as a temporary solution till the electrician does his/her work to set you up properly. To have a dedicated circuit without the use of an extension cord is the recommended and preferred method. We also have a battery backup pump system that can be incorporated in your design if that is of an interest to you. Please call our office at 415.884.0500 for a free evaluation so we can determine what would be best for your situation.
Our system installations have some form of an alarm system incorporated. If you are not hearing an alarm, that is a very strong indicator that your pump is working. If you do hear your alarm, it’s an early warning system that water has triggered it. If you do hear the alarm, check your power. If you have exhausted all power issues then your pump may have finally seen the end of it’s life. At Bay Area Moisture Control, we have a service department to help ensure that your system is working as it did on day one. If having one of our technicians out to service your pump and alarm is of an interest to you please contact our office to schedule an appointment. Please call our office at 415.884.0500 to set up an appointment.
Mold needs four things to grow: moisture, oxygen, food (organic material), and sufficient heat. The only one of those items that can reasonably be controlled is moisture. Our pump and encapsulation systems are an excellent way to help control that unwanted moisture in your crawlspace. This denial of moisture to the environment is an excellent way to prevent mold from ever developing in the crawlspace. Please call our office at 415.884.0500 for a free evaluation so we can determine what would be best for your situation.
These helpful articles answer questions about why and how to waterproof your basement or crawl space and why some methods are proven better than others.
