Crawl Space

Why Seal Crawl Space?

  • Sealing a crawl space prevents mold, moisture, and termites.
  • Moisture and humidity in the crawl space can cause structural issues.
  • Dark and dirty crawl spaces can be converted to clean and useable storage space.
  • Damp crawl space invites allergens and indoor air pollutants to your home.



Weinstein Retrofitting can keep the moisture away from your crawl spaces and make your home safe and healthy for living.

Moisture in the crawl spaces can injure our homes in many ways. The evidence of the problem are mold, health problems, rots and pests, bad smell in the house, sticky windows, buckling hardwood floors, high energy bills, also it can cause damage of the wood framing and the steel as well.

Crawl space encapsulation or also known as crawl space sealing, is a process that insulates the crawl space under your home from the outside world by wrapping the entire area of your crawl space with a ultra-durable polyethylene liner- sealing and protecting your crawl space from the moisture. Also, vents and port doors and often covered up for full insulation. The costs to repair a home with structural damage are exponentially higher than the crawl space encapsulation cost.

Weinstein Retrofitting also take care of the drainage problems when water does not properly drain away from the crawl space. It is very important because the water will harm the foundation through shifting the home while expanding and shrinking the soil upon which the concrete foundation footing sits, causing unwanted moisture build up.

Designing and installing permanent and effective crawl space systems since 1977, Weinstein Retrofitting custom tailors all their services to your home.

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    Vapor Barrier


    The vapor barrier liner is designed with ultra-durable polyethylene to resist punctures and tears. Blended with anti-bacterial materials, the vapor barrier provides extra protection against mold and bacteria. It is durable enough to last for decades and keeps your crawl space dry and clean.

    Drainage Matting


    The drainage matting dimpled polyethylene matting, creates raised spaces that allow water on top of the concrete floor. It helps prevent water pockets from forming under your vapor barrier by guiding water to a nearby pump. It is an absolute must for concrete crawl spaces.

    Sump Pumps and Drains


    Adding waterproofing options completes the crawl space encapsulation layout. A sump pump keeps crawl space area dry from flooding, for example, a plumbing leak.

    When water is detected, the sump pump automatically pumps the water out from the crawl space. Secondary pumps can also be installed as a backup solution.

    Vent Doors and Covers


    For a clean, dry, and energy-efficient crawl space, foundation vent doors and covers keep your home safe from what’s outside. Good crawl space ventilation circulates fresh air through the crawl space and exhausts musty, moist air. For the best results, open foundation vents in the summer to allow moisture out and close foundation vents in the winter.

    Crawl Space Access System


    Moisture and humidity can easily make their way into your crawl space. A solution to this problem is called The Turtl.

    The Turtl is composed of extra tough and durable vinyl and insulates from the extreme outdoor temperatures. In attractive colors, The Turtl’s modern crawl space door design complements any home.

    Frequently Asked Questions

    How can I tell if I have crawl space under my house?
    A crawl space is just what the name says.  It is typically an unfinished space in your home’s basement or under its roof that you cannot stand up in, but need to crawl through. Crawl spaces are used to access wiring or plumbing pipes and other fixtures in your home that are typically difficult to control.  It is very likely that you have no desire to go crawl into such a space!     If you are adventurous and go looking for, but cannot find, a crawl space below your house, you may not have one.  However, if you have a crawl space and never inspected it, or if you are unsure, we will gladly come to your home for a free, no-obligation inspection and give you a definitive answer.  Crawl spaces should always be inspected, or you risk damaging your home!
    Can I just seal my crawl space without the waterproofing options?
    Yes, of course.  Some of our customers choose to simply seal their crawl space without adding waterproofing.  Having said that, Weinstein Construction’s experts will always recommend waterproofing options, just to be on the safe side, in case you experience a pipe leak or other damaging water intrusion.
    Are there permits required for crawl space services?
    Actually, no!  In most cases, this is a simple and cost-effective job that does not require a permit.  Occasionally, an extensive job may require a permit, but when this happens, we can take care of the whole permitting process for you.
    Is it expensive to fix my crawl space?
    Crawl space services are very affordable, especially when you compare their cost to the damage that can happen to your home from water intrusion, damp, rot, termites or pest infestation.   When crawl space problems get bad, the cost of repairing them can be very pricey. In a worst-case scenario, the damage can be so bad that it is not even repairable (for example, when deadly bacteria and mold spores overtake a home).  The price of having your crawl space protected is an investment that you make in your future. You know what they say, “an ounce of prevention is worth a pound of cure!”
    Does my Crawl Space need to be repaired?
    Crawl space problems can be very serious and should not be ignored.  If a problem exists in a crawl space, it must be taken care of ASAP. The trouble is, most people never go into their crawlspace, which means they cannot see if there is a problem exists until it’s too late, and the damage is done! Why take a chance?  The longer crawl space issues fester, the greater the damage to your home.  If you haven’t been inside your crawl space in a while, go inside and have a look.  If you want Weinstein Construction’s experts to go in, free-of-charge, and without obligation, just give us a call!  If you’ve been inside your crawl space and noticed any water, mold, damp areas, or dead critters, then you must take action immediately!  Water and dampness are a crawl space's worst enemy and mold can be very dangerous to the health and well-being of all who live in the home.   Beyond the health issues discussed above, water can rot the wood that is holding up your home, which may present a serious risk when the next earthquake hits.  If you are not sure whether you need crawl space repairs, call Weinstein Construction, and one of our expert inspectors will come to your home and inspect your crawl space at no charge, and without any obligation on your part!


    The crew showed up and they were excellent with their services and did a complete job. We are very satisfied. We are definitely going to refer other clients to Weinstein.
    Deidra WaggnerWest Covina
    They did in a very expeditious manner and they did a good job. I am very well satisfied with it.
    Will Shanonhttp://