
Crawl space repair is a vital service for homeowners in Lanham, where high humidity levels and poor drainage can lead to moisture infiltration and uneven flooring. Signs such as mold growth, sagging floors, or excessive humidity indicate the need for professional intervention to maintain your home's structural integrity. Our expert team employs advanced solutions like crawl space encapsulation with vapor barriers and sump pump installations to effectively combat these issues and ensure a dry, healthy space.
JES Foundation Repair, a Groundworks Company, has been a trusted partner for Lanham homeowners since 1993, backed by an A+ BBB rating for our commitment to quality service. Our certified field inspectors are available for free in-home inspections, providing personalized quotes to address your specific crawl space needs. With more than 30 years of experience, our knowledgeable team is dedicated to delivering effective and lasting solutions to your crawl space challenges.
24,523 crawl spaces repaired by the Manassas branch
2,197 of your neighbors recommend JES Foundation Repair
Over 33 years of trusted experience in home repair.
Call us today at (703) 783-5695 for a free inspection.



Straightforward and simple process
Upon arrival, our Inspector will introduce themselves and chat with you about the problems you're experiencing. Based on the information you provide them, they'll then create a plan of action to examine your home inside and out.
Once the inspection is complete, the Inspector will sit with you and present their findings. And because we provide same-day estimates, you'll have all the cost and financing information you need to make a decision right away.
When you're ready to move forward with repairs, we'll help you choose an installation date that works for your schedule, and notify our Installation team immediately of the upcoming work.


Noticing the telltale dampness or musty odors in your crawl space? In Lanham, unique environmental factors make understanding these concerns essential. Homes in this region face a combination of clay-rich soil and fluctuating temperatures, both of which play significant roles in the condition of your crawl space. During wetter seasons, the local soil tends to absorb moisture, leading to expansion. Conversely, dry spells cause the soil to contract. This constant movement creates pressure on your foundation and crawl space, which can result in visible damage over time.
These environmental stresses can manifest as cracks, uneven floors, or even doors that start to stick. Not only do these signs indicate foundation stress, but they can also contribute to poor indoor air quality and potential structural issues. Catching these warning signs early, such as noticing pooling water or increased humidity in your crawl space, can help prevent more extensive damage. Addressing these issues promptly not only safeguards the structural integrity of your home but also helps maintain a healthy living environment.

