About Us

David Carney, Owner

David Carney, Owner

Clean CrawlSpace Inc. is proud to serve the California Bay Area. The experts here at Clean CrawlSpace are dedicated to making healthier, happier homes for our valued customers by removing the risks that water can pose to the structure. With services such as Crawl Space Repair, Waterproofing, Earthquake retrofitting, and attic+crawl space insulation Clean CrawlSpace Inc. is here for you and all your crawl space and attic needs. Reach out today for your free, no obligation estimate! 


Services Provided

  • +Basement Waterproofing

    • Basement Dehumidifiers
    • Basement Floor Crack Repair
    • Basement Mold Remediation
    • Basement Wall Crack Repair
    • Basement Window Installation & Replacement
    • Basement Window Well Installation & Replacement
    • Elevator Pit Waterproofing
    • Interior Basement Waterproofing
  • +Crawl Space Waterproofing & Encapsulation

    • Crawl Space Access Doors
    • Crawl Space Dehumidifiers
    • Crawl Space Drainage Systems
    • Crawl Space Encapsulation & Repair
    • Crawl Space Flood Vents
    • Crawl Space Pump Out Service
    • Crawl Space Sump Pump Installation
    • Crawl Space Sump Pump Repair
    • Crawl Space Vapor Barrier
    • Crawl Space Vent Covers
    • Dig Out Crawl Spaces
  • +Insulation

    • Blown-In Insulation Installation & Replacement
    • Cellulose Insulation Installation & Replacement
    • Crawl Space Insulation Installation & Replacement
    • Fiberglass Insulation Installation & Replacement
    • Floor Insulation Installation & Replacement
    • Foam Board Insulation Installation & Replacement
    • Garage Insulation Installation & Replacement
    • Injection Foam Insulation Installation & Replacement
    • Mineral Wool Insulation Installation & Replacement
    • Roof Insulation Installation & Replacement
    • Wall Insulation Installation & Replacement
  • +Pest Control

    • Animal Removal & Wildlife Control
    • Bat Removal, Treatment & Control
    • Raccoon Removal, Treatment & Control
    • Squirrel Removal, Treatment & Control
  • +Remodeling

    • Basement Flooring
  • +Sump Pump

    • Sump Pump Installation & Replacement
    • Sump Pump Repair & Service

Company Highlights

  • In business since 2004
  • Financing offered
  • Residential & commercial services
By Frank
Products were what I needed to resolve crawl space smell and moisture problems. Great Job! Thanks.
By Robert
Since the pump and liner have been installed, the musty odor has left our home.
By Richard
Very good company. David was a pleasure to work with and really helped make our crawl space job go smoothly. Thanks very much, I would highly recommend them.
By Leslie
I wish all service companies were run like this one!
By Jim
Heard about you at the Home & Garden Show of Santa Clara & San Jose - we noticed a professional manner. You all were very professional every step of the way - you should all be proud to be a part of Clean Crawlspace.
By Lori
Two reasons I used Clean CrawlSpace, Inc.- to cut down on musty smell in home and I like the idea of a clean space that I could even use for storage!July 2010
By Donald
We have found all of your people, including the installers to be VERY professional, which is unusual in this day! Thank you.
By Emil
The cost for the the Clean CrawlSpace installation is a bit too expensive for the average homeowner. I would suggest a reexamination of the high cost as, for example, most of my neighbors would never consider to have the work done, etc.Think about it!
By Robert
I am in the process of updating my home. Contractors going in and out all day. I wish they all had the work ethics of your company. You treat my home like it was yours. When updating a home, the most important thing might be the area you cannot see. Moisture, hence mold, will have an extremely detrimental effect on your health and also the RESALE value of your home.
By Emil
Both service/installation personnel were knowledgeable, experienced and personable; also very considerate in maintaining a clean workplace entry point.
By Jean
Your business was a recommendation from our oldest daughter who recommended you to her sister and then us. We are a complete family that you have serviced. Everyone is extremely satisfied.
By Jean
Our experience with Clean CrawlSpace has been absolutely OUTSTANDING. We had our crawlspace encapsulated with sump pumps never anticipating how much we really needed them. We live in the Almaden area of San Jose and have heard there were springs in the area. Our solid oak hardwood floors were recently installed by a Diamond Certified company. They informed us that our moisture reading was borderline and would be solved by a vapor barrier. However 6 months later we noticed the floors had a slight cuping. No one has ever recognized that we had any water but there was an odor. Since completion of your work we are aware of the amount of sub surface water in our crawlspace. Access to the crawlspace is in the interior of our house. Your employees made sure their work was done with no impaction to us. There was no tracking of debris. They were very efficient and professional. Thank you for a job well done.
By Gini
System of sump pump seems to be working. Today is the first day of rain and it has been raining for about 9 hours. I checked what I could in the crawl space and it looks dry so far. The pump is quiet and I can tell the difference from the old one. This one seems to pump more often for shorter periods. May be keeping up better than the old one. Time will tell Hope it keeps working this well over periods of heavy rain
By Steve
The sales person (Alex) implied he would visit the job site during the work. He was a no show. Zero follow up call from him or the GM to check on job satisfaction. For a $10K job, I'd at least expect a quick phone call to check in. Nothing.
By Bill
wee above comments
By Mike
Thanks
By Lana
Great service provided by everyone we came into contact with. Thanks!
By Ed
Thank you again for a great job. The crawl space is one less issue I need to deal with.
By Karla
There was some lack of communication between Alex and David about where the pump should drain in the yard, and there were some questions for me that I wasn't sure how to answer.
By Mark
Truly exceptional service!My only regret is that I have but one Crawl Space for you to service!
Frank M.
Livermore, CA
I would like to take this opportunity to convey my complete satisfaction with the recent installation of a Smart Sump Pump System and CleanSpace liner in the crawl space of my home. Believe me when I say that I am not one to normally write a testimonial letter. When I purchase a product, I expect to get what I pay for with a quality installation, In my fifty years of dealing with a variety of companies and contractors I have not come across one that has a higher implementation of quality and customer satisfaction than Clean CrawlSpace Inc. I would like to compliment the entire crew on their performance, from the sales staff (Jay), to the installers who not only did the installation and clean up but also made sure our white carpeting retained it's true color. It's been my profound pleasure to have done business with a company that cares for the customer especially when that is reflected throughout the entire organization. Thank you for job well done! Sincerely, Frank M. Cory
Mark M.
Danville, CA
I saw your truck on the road, read the services on the back of the truck, made one phone call to you and never contacted any other company. I concluded that none of your competitors offered the same or a better product for my needs. Daniel was professional, knowledgeable, friendly, inquisitive, a good listener and excellent communicator. He explained all the options and the pros and cons of each. He never resorted to "the hard sell." Daniel was professional, knowledgeable, friendly, inquisitive, a good listener and excellent communicator. He explained all the options and the pros and cons of each. He never resorted to "the hard sell." The installers, David, Diego and Oscar were friendly, worked extremely hard and left our home spotless. Couldn't have asked for more from them. -Mark  
John and Louise F.
Pacific Grove, CA
In the video, you can see our little house in Pacific Grove, California.  It’s an older cottage – if you pause the video you can see the historic plaque with the date of 1887.  Obviously, many improvements have been made since then, but suffice to say the house was begun a long time ago. The lot slopes gradually from front to back, as evidenced by the back door up several steps from the level of the back yard. The slope of the lot is relevant in two important ways: 1.  Water flows underground from uphill, beneath the house, and down the slope toward the bay.  The grass in our back yard is always green without irrigation of any sort because there is adequate underground water for it.  The abundance of underground water flow made our crawlspace very moist. 2.  The slope of the lot affords a relatively large vertical clearance in our crawlspace, making access a little easier when working in it. Our initial efforts to deal with moisture in the crawlspace included working with a contractor whose approach included (1) fans to exhaust the damp air and (2) adding a layer of gravel with the goal of wicking up the moisture in the gravel and drying it with airflow.  The two photos below show a typical exhaust fan and the gravel on the floor of the crawlspace. The fans-and-gravel strategy was expensive but unsuccessful.  With it, we continued to experience moisture and mildew odor.  When it was necessary for work to be performed in the crawlspace, such as by a plumber or electrician, the disturbance to the gravel and dirt led to mildew odor inside the house that would last typically for a week or so. We purchased the Clean Crawlspace solution in 2015, and with it, we got exactly the result we wanted.But there is more to our story. We have a lot of water under our house.  The video shows the Clean Crawlspace technician excavating the site for our sump pump.  It was very wet and muddy (“a picture is worth a thousand words”). The completed site of the sump pump is shown in the video.  The discharge line connects to the rain gutter downspout system.  The outline of the rectangular-shaped sound isolation sheet is visible in the photo.  The black electrical cord runs to a dedicated receptacle that we had our electrician install nearby.  It’s a really pretty installation.  During rainy weather, and then following rains while water is still flowing underground, our sump pump can come on every 40 minutes or so. We are very happy with our Clean Crawlspace installation.  No more moisture and odor. And whenever tradesmen such as plumbers and electricians need to do work under our house, they typically praise the worker-friendly environment. With our thanks and best wishes, John and Louise Fredrickson
Jake S.
Pacifica, CA
George T.
Santa Rosa, CA
I wish to offer my sincere thanks for your recent work at our Santa Rosa residence. You and your staff have performed far beyond our expectations in workmanship, cooperative amiable attitude and timeliness. It has been a true pleasure to experience the excellence you provided at all stages of the job. As you know, we were very pleased with the results following the initial installation of your product in July 2005. Last winter provided the severe wet weather conditions needed to test the efficacy of the entire package. The sump pumps functioned flawlessly under the nearly continuous flow of water during the long rainy season. The multi-ply covering kept away the extremely offensive dank & musty odor caused by the wet soil, which previously would permeate the house all winter long. The elimination of the odor was one of our primary objectives and the application of your product resolved the situation. We are grateful to have found Clean CrawlSpace in time to implement control over the under house water problem before it caused any structural damage. We unreservedly recommend yourselves and your company to anyone who might require a solution to the unpleasant and potentially dangerous effects of water and moisture accumulation in a similar environment. There is also the collateral benefit of the clean white durable covering making crawling beneath the house a palatable act instead of a dreaded and dirt producing one. The additional storage area is great, too! If you wish, you may provide a copy of this letter to anyone who might be interested in reading the words of a very satisfied customer. Best personal regards, George R. Thoresen
Steve W.
Sebastopol, CA
I wanted to write to personally, and let you know that as a builder of custom homes for 30+ years, I know the importance of keeping the crawl space area dry and the wood members protected. We heard great things about your firm, and I decided to choose your company to protect my personal residence because of your great reputation... and we weren't disappointed! Choosing the right company is always important, and certainly not all about the lowest price. The friendly and conscientious employees were pleasant to have working on our house, which is rare to find today. The cost of having the work done was certainly something to consider, but after all is said and done, it is so nice not to have the musty odors coming up into the home. Finally, I know the system will save us from costly repairs for years to come. Thank you again on doing such a great job on my home. I would recommend your company to my clients and anyone else, without reservation! Sincerely, S. Winkler CEO Highline Builders, Inc.
  • Rodent Exclusion & Crawlspace Encapsulation in Cotati, CA - Before Photo
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    Rodent Exclusion & Crawlspace Encapsulation in Cotati, CA - After Photo
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    Rodent Exclusion & Crawlspace Encapsulation in Cotati, CA

    Moisture problems are common in Cotati, California, and Rob M. wasn't spared. Standing water in his crawlspace not only threatened the foundation but also attracted unwanted guests – rodents. This posed a serious health risk for Rob and his family. A simple cleanup wouldn't do the trick; he needed a permanent solution to keep his crawlspace dry and rodent-free.

     

    Instead of tackling the problem himself, Rob called in the professionals at Clean Crawlspace. They understood the unique challenges of Cotati's climate and designed a multi-step plan. Clean Crawlspace sealed the crawlspace to prevent future rodent infestations and then encapsulated the entire crawlspace with a moisture barrier. This solution ensures Rob's crawlspace is dry, healthy, and free of unwanted visitors, giving him peace of mind in his Cotati home.

  • Crawlspace Cleanup: Breathing Easier in Discovery Bay, CA - Before Photo
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    Crawlspace Cleanup: Breathing Easier in Discovery Bay, CA - After Photo
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    Crawlspace Cleanup: Breathing Easier in Discovery Bay, CA

    The musty smell that had infiltrated every corner of Jeffrey's Discovery Bay home was more than just an annoyance; it was a persistent invader. Jeffrey took the plunge and had an environmental air test conducted. The results were sobering – rodent droppings and a worrying level of mold spores lurked in the very air he breathed. The culprit? His neglected crawlspace, a damp breeding ground for both microscopic and furry threats. Jeffrey contact Clean Crawlspace. 

     

    Clean Crawlspace cleaned the debris, purged the water, and rodent droppings and antibacterial. A robust vapor barrier was meticulously installed, sealing the crawlspace from the damp clutches of the earth. The transformation was immediate – the oppressive odor vanished, replaced by the crisp scent of clean air. Victory, it seemed, smelled like a fresh start. With the mold subdued and the rodents evicted, Jeffrey could finally breathe easy, his Discovery Bay haven reclaimed from the clutches of the unseen. Jeffrey is a happy customer with a home, once tainted by illness, now filled with the promise of renewed health and well-being.

  • Don't Let Rainwater Win: Safeguard Your Gilroy, CA, Home Crawlspace - Before Photo
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    Don't Let Rainwater Win: Safeguard Your Gilroy, CA, Home Crawlspace - After Photo
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    Don't Let Rainwater Win: Safeguard Your Gilroy, CA, Home Crawlspace

    Recent heavy rains in Gilroy, California, worried homeowner Craig M. He noticed a growing moisture problem in his crawlspace, knowing it could harm both his family's well-being and his home's value. Acting quickly, Craig contacted Clean Crawlspace. Their experts implemented a comprehensive solution: a trench and drainage system with a WaterWatch alarm directed rainwater to a sump pump. CleanSpace drainage matting and vapor barrier further sealed the crawlspace and prevented moisture intrusion, while a SaniDray Sedona dehumidifier ensured long-term dryness. Now, Craig can rest assured his Gilroy, CA, home is protected and his investment secure.

  • Sump Pump Installation in Morgan Hill, CA - Before Photo
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    Sump Pump Installation in Morgan Hill, CA - After Photo
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    Sump Pump Installation in Morgan Hill, CA

    This home was a quick and simple fix! They had issues with standing water and moisture in the crawl space. They googled a crawl space company, found us, and have us a call. We came out and fixed the issue with trenching and a sump pump! No more water issues!

  • Crawlspace Rescued from Flooding in Aromas, CA - Before Photo
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    Crawlspace Rescued from Flooding in Aromas, CA - After Photo
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    Crawlspace Rescued from Flooding in Aromas, CA

    Sandee A got serious damage to her beautiful Aromas, CA, home after a major rain storm

  • Mold? Nope! Clayton, CA Crawlspace Fix - Before Photo
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    Mold? Nope! Clayton, CA Crawlspace Fix - After Photo
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    Mold? Nope! Clayton, CA Crawlspace Fix

    John's Clayton, California, crawlspace was a damp nightmare, causing chills and unpleasant odors. Clean Crawlspace came to the rescue! Their moisture control expert pinpointed the culprit: poor drainage and ventilation.

    The Clean Crawlspace team installed a drainage system, and sealed the crawl space using the innovative CleanSpace® Crawl Space Vapor Barrier system, creating a dry, durable, healthy environment that would prevent future mold growth. . John's crawlspace transformed into a dry haven, eliminating the musty smells and temperature swings. He now enjoys a healthier, more comfortable home thanks to Clean Crawlspace's expertise. 

  • Crawlspace Encapsulation in Danville, CA - Before Photo
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    Crawlspace Encapsulation in Danville, CA - After Photo
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    Crawlspace Encapsulation in Danville, CA

  • Sump Pump Replacement Suisun City, CA - Before Photo
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    Sump Pump Replacement Suisun City, CA - After Photo
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    Sump Pump Replacement Suisun City, CA

    This home has a unique story. This home had a liner and sump pump installed in 1977! It has been doing its job for many, many years. But unfortunately, the technology was not very good back then and things don't last forever. After the homeowner noticed that the sump pump bucket was full of water he started investigating. They found it had stopped working and he was pretty sure the discharge line was gummed up. They had a lot of standing water in the crawl space from this and they started to notice a moist, musty smell in their home. They went on Home Advisor and started searching for crawl space experts. They came to find us at Clean CrawlSpace Inc. We got there old, non-working sump pump system out and put in a new one that will last them for many, many more years to come!

  • Sump Pump Install, Dublin CA - Before Photo
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    Sump Pump Install, Dublin CA - After Photo
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    Sump Pump Install, Dublin CA

    Check out this sump pump and full encapsulation we installed in Dublin, CA. As you can see they had a sump pump already but it was not working and allowing the crawl space to flood. To fix this we dug trenching to divert water to the sump pump, while also installing a new sump pump and plumbing. 

  • Hidden Hazard: Expose & Stop Concord, CA Mold - Before Photo
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    Hidden Hazard: Expose & Stop Concord, CA Mold - After Photo
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    Hidden Hazard: Expose & Stop Concord, CA Mold

    Spring rains brought more than flowers to Zachary's Concord townhouse. Dampness seeped into the crawlspace, conjuring musty odors and attracting unwelcome rodent roommates. Worried about both the architectural integrity and health implications, Zachary sought help from Clean Crawlspace.

     

    Our expert crew transformed the dank dungeon with waterproof sealed vapor barrier and strategically placed sump pump which banished moisture, while improved ventilation chased away the musty smells. Zachary's townhouse was reborn, floors toasty, air fresh, and rodent-free. Thrilled with the professional installation and newfound peace of mind, Zachary became Clean Crawlspace's biggest Concord fan, eager to recommend their services to every neighbor. Thanks Zachary!