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Foundation, basement or crawlspace waterproofing / encapsulation pros in Gaithersburg
Looking for a professional that will give you an honest price and the best craftsmanship around? Armour Home Improvement is the company for you! Call us today, we look forward to speaking with you (301) 570-8041 or (410) 489-6004! (Please note that we only do complete remodels and not single item projects).
"I selected Armour over other contractors bids for my basement remodel and I am very happy that chose them. During the bidding process they answered all of my questions quickly and thoroughly, their proposal was thorough and clear, and they were happy to discuss my ideas, thoughts and concerns. The crew that did the work was fantastic. Those guys are pros. The scope of work included all new framing and drywall (up to code, unlike before they came in), replacing that damn stucco ceiling with new drywall, upgrading the bathroom and kitchenette, new flooring, new basement door and replacing the ancient basement window, plus upgrades to the interior basement stairs and bathroom exhaust fans. Everything passed inspection and I am a happy customer. I would hire Armour again in a heartbeat. Many thanks to Rob, Christina, Rudolfo and everyone who worked on the project."
Richard P on October 2024
Looking for a professional that will give you an honest price and the best craftsmanship around? Armour Home Improvement is the company for you! Call us today, we look forward to speaking with you (301) 570-8041 or (410) 489-6004! (Please note that we only do complete remodels and not single item projects).
"I selected Armour over other contractors bids for my basement remodel and I am very happy that chose them. During the bidding process they answered all of my questions quickly and thoroughly, their proposal was thorough and clear, and they were happy to discuss my ideas, thoughts and concerns. The crew that did the work was fantastic. Those guys are pros. The scope of work included all new framing and drywall (up to code, unlike before they came in), replacing that damn stucco ceiling with new drywall, upgrading the bathroom and kitchenette, new flooring, new basement door and replacing the ancient basement window, plus upgrades to the interior basement stairs and bathroom exhaust fans. Everything passed inspection and I am a happy customer. I would hire Armour again in a heartbeat. Many thanks to Rob, Christina, Rudolfo and everyone who worked on the project."
Richard P on October 2024
JES Foundation Repair (JES), A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Virginia and Maryland. With fully trained technicians, industry-leading products, and nationally backed warranties, JES is here to restore your foundation or crawlspace.
"JES left my home in worse shape and will not return my calls to come repair the damage left. I reached out to them to install a joist support system under my kitchen so that I can renovate this year. There were floor joists under the back door that had been cut during a renovation about 30 years ago. JES installed a jack system but then left my foundation under the door where you can literally see daylight from the basement. I brought this up to the crew before they left late Friday night (they worked long hours just to ?finish? without even asking me if it was okay to trap me at home that late), and the lead just shrugged at me. Shortly after they left, it rained, and sure enough, water poured into my electrical room and all over the freshly poured concrete. I called Friday night, sent an email and text with videos, and called today 3 times. Each time the ?production manager? is ?busy.? Before this, they were perfectly capable of blowing up my phone to see if I could schedule sooner."
Brittany A on June 2025
JES Foundation Repair (JES), A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Virginia and Maryland. With fully trained technicians, industry-leading products, and nationally backed warranties, JES is here to restore your foundation or crawlspace.
"JES left my home in worse shape and will not return my calls to come repair the damage left. I reached out to them to install a joist support system under my kitchen so that I can renovate this year. There were floor joists under the back door that had been cut during a renovation about 30 years ago. JES installed a jack system but then left my foundation under the door where you can literally see daylight from the basement. I brought this up to the crew before they left late Friday night (they worked long hours just to ?finish? without even asking me if it was okay to trap me at home that late), and the lead just shrugged at me. Shortly after they left, it rained, and sure enough, water poured into my electrical room and all over the freshly poured concrete. I called Friday night, sent an email and text with videos, and called today 3 times. Each time the ?production manager? is ?busy.? Before this, they were perfectly capable of blowing up my phone to see if I could schedule sooner."
Brittany A on June 2025
JES Foundation Repair (JES), A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Virginia and Maryland. With fully trained technicians, industry-leading products, and nationally backed warranties, JES is here to restore your foundation or crawlspace.
"Our inspector, Mike Mele, was wonderful. From start to finish, he not only was very professional and polite, but he did an amazing job of telling us our problems (pretty major) without fear mongering us into upsales. He told us our problem, recommended a solution, gave us a very reasonable price to said solution, and then constructed us a payment plan process that won't hurt our pockets and will ease our stress. Thank you so so much! Im freaking amazed and grateful as hell. "
Daphne A on May 2025
JES Foundation Repair (JES), A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Virginia and Maryland. With fully trained technicians, industry-leading products, and nationally backed warranties, JES is here to restore your foundation or crawlspace.
"Our inspector, Mike Mele, was wonderful. From start to finish, he not only was very professional and polite, but he did an amazing job of telling us our problems (pretty major) without fear mongering us into upsales. He told us our problem, recommended a solution, gave us a very reasonable price to said solution, and then constructed us a payment plan process that won't hurt our pockets and will ease our stress. Thank you so so much! Im freaking amazed and grateful as hell. "
Daphne A on May 2025
For over 66 years, '58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawl space encapsulation, foundation repair, and mold removal. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and upholding the values upon which '58 Foundations & Waterproofing was built: trust, teamwork, integrity, respect, and communication. From the initial call to job completion, our customers are met with knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry. What’s more, you can enjoy the peace of mind that comes with our lifetime warranty and our industry-unique money-back guarantee!
"If you’re considering 58 Foundations, do yourself a favor and stop right now. I cannot, in good conscience, recommend this company to anyone. Their complete disregard for accountability is infuriating. At first, things appeared to go smoothly, but the illusion of competence quickly disintegrated when it came time for the building inspection. The city inspector requires a letter from the project engineer verifying that the work is safe, sound, and compliant with code. 58 Foundations flat-out refuses to provide this basic validation of their work. Why won’t they stand behind their project? Are they hiding shoddy, substandard work? As a homeowner, I’m now saddled with the mess of an open permit and no resolution in sight. This is unacceptable. If a company won’t back their work with a simple letter, what does that say about their integrity—or lack thereof? Didn't expect this kind of run around from a well established professional firm, save yourself the headache."
Warrick S on December 2024
For over 66 years, '58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawl space encapsulation, foundation repair, and mold removal. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and upholding the values upon which '58 Foundations & Waterproofing was built: trust, teamwork, integrity, respect, and communication. From the initial call to job completion, our customers are met with knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry. What’s more, you can enjoy the peace of mind that comes with our lifetime warranty and our industry-unique money-back guarantee!
"If you’re considering 58 Foundations, do yourself a favor and stop right now. I cannot, in good conscience, recommend this company to anyone. Their complete disregard for accountability is infuriating. At first, things appeared to go smoothly, but the illusion of competence quickly disintegrated when it came time for the building inspection. The city inspector requires a letter from the project engineer verifying that the work is safe, sound, and compliant with code. 58 Foundations flat-out refuses to provide this basic validation of their work. Why won’t they stand behind their project? Are they hiding shoddy, substandard work? As a homeowner, I’m now saddled with the mess of an open permit and no resolution in sight. This is unacceptable. If a company won’t back their work with a simple letter, what does that say about their integrity—or lack thereof? Didn't expect this kind of run around from a well established professional firm, save yourself the headache."
Warrick S on December 2024
Always Waterproofing has 35 years of experience in the industry. We are locally owned and operated. If you want the job right the first time, call James today!
"Steve was very upfront about what was needed for mitigation and cost. His crew came in on time, and the project was completed to my satisfaction!"
Paul H on May 2025
Always Waterproofing has 35 years of experience in the industry. We are locally owned and operated. If you want the job right the first time, call James today!
"Steve was very upfront about what was needed for mitigation and cost. His crew came in on time, and the project was completed to my satisfaction!"
Paul H on May 2025
With our EPA-registered, plant-based products, Green Home Solutions is the trusted partner to address a range of indoor air quality needs: mold remediation, odor removal, allergen control, disinfection/sanitization, and air filtration. Our inspections detect indoor air quality issues, determine potential underlying causes, and help us create a customized and effective treatment plan that features our EPA-registered, plant-based products and IICRC protocols. We’re fast, affordable, and effective at eliminating mold, preventing regrowth, removing odors, and making air better. We uphold a standard of integrity with fairness, honesty, and personal responsibility. Accurate knowledge combined with a drive to serve our customers' interests and needs: these qualities make us true professionals you can rely on.
"Quick and painless."
Robert G on March 2025
With our EPA-registered, plant-based products, Green Home Solutions is the trusted partner to address a range of indoor air quality needs: mold remediation, odor removal, allergen control, disinfection/sanitization, and air filtration. Our inspections detect indoor air quality issues, determine potential underlying causes, and help us create a customized and effective treatment plan that features our EPA-registered, plant-based products and IICRC protocols. We’re fast, affordable, and effective at eliminating mold, preventing regrowth, removing odors, and making air better. We uphold a standard of integrity with fairness, honesty, and personal responsibility. Accurate knowledge combined with a drive to serve our customers' interests and needs: these qualities make us true professionals you can rely on.
"Quick and painless."
Robert G on March 2025
East Coast Concrete LLC, proudly servicing Pasadena, MD and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.
"Hopefully the picture shows, most I took were too large to upload, but I can tell you the end result is beautiful and will be so much easier to walk up to the door now thanks to the wonderful work of the framer. Everyone that worked on this project was professional and clearly knew what they were doing. "
Stephanie J S on July 2025
East Coast Concrete LLC, proudly servicing Pasadena, MD and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.
"Hopefully the picture shows, most I took were too large to upload, but I can tell you the end result is beautiful and will be so much easier to walk up to the door now thanks to the wonderful work of the framer. Everyone that worked on this project was professional and clearly knew what they were doing. "
Stephanie J S on July 2025
USA Home Performance is a BPI-certified company passionate about transforming your home into a healthier, more comfortable, and energy-efficient space. We specialize in indoor air quality testing, alongside expert insulation services, spray foam applications, crawlspace encapsulations, and energy audits. Our dedicated team prioritizes clean, safe air for your family, addressing pollutants and inefficiencies to create a living environment that promotes well-being while reducing energy costs.
"Installer put hole through ceiling and they wonâ t accept responsibility for it. They said they didnâ t do it. I was sitting in room when it happened. Not trustworthy. ð"
Virginia L on November 2023
USA Home Performance is a BPI-certified company passionate about transforming your home into a healthier, more comfortable, and energy-efficient space. We specialize in indoor air quality testing, alongside expert insulation services, spray foam applications, crawlspace encapsulations, and energy audits. Our dedicated team prioritizes clean, safe air for your family, addressing pollutants and inefficiencies to create a living environment that promotes well-being while reducing energy costs.
"Installer put hole through ceiling and they wonâ t accept responsibility for it. They said they didnâ t do it. I was sitting in room when it happened. Not trustworthy. ð"
Virginia L on November 2023
Our company is based on the belief that our customers needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team.
"Contractor delivered what he promised on time. Very satisfied with the result."
John D on April 2023
Our company is based on the belief that our customers needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team.
"Contractor delivered what he promised on time. Very satisfied with the result."
John D on April 2023
Aquaguard has serviced the region for more than 30 years. Based in Beltsville, MD. Aquaguard has thousands of satisfied customers in Maryland, DC and Northern Virginia. Recently we were spotlighted on CNBC and PBS for an article on basement flooding - please visit our website to view it. Aquaguard's experience has shown that no two problems are the same. With a company-wide commitment to high quality workmanship and customer satisfaction, our primary goal is to solve your specific problem. Our inspection will involve a thorough examination of your foundation inside and out. We will explain the cause of your water problem, what can be done to correct it permanently and leave you with a free estimate. Also offering Egress Windows, Elevator Fit Pits & Steelway Doors We employ the most experienced construction professionals in the waterproofing business and utilize time tested methods to solve basement water problem. Credit Cards Accepted / Financing Available
"Very pleased with the work they did."
Joanne O on September 2024
Aquaguard has serviced the region for more than 30 years. Based in Beltsville, MD. Aquaguard has thousands of satisfied customers in Maryland, DC and Northern Virginia. Recently we were spotlighted on CNBC and PBS for an article on basement flooding - please visit our website to view it. Aquaguard's experience has shown that no two problems are the same. With a company-wide commitment to high quality workmanship and customer satisfaction, our primary goal is to solve your specific problem. Our inspection will involve a thorough examination of your foundation inside and out. We will explain the cause of your water problem, what can be done to correct it permanently and leave you with a free estimate. Also offering Egress Windows, Elevator Fit Pits & Steelway Doors We employ the most experienced construction professionals in the waterproofing business and utilize time tested methods to solve basement water problem. Credit Cards Accepted / Financing Available
"Very pleased with the work they did."
Joanne O on September 2024
FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Gaithersburg, MD
Standing water in your crawl space won’t disappear on its own. Keep the drainage clear, ensure the vents are working properly, and run a dehumidifier to control moisture levels. If dampness lingers, mold, wood rot, and foundation cracks can follow. Act quickly and call a pro to protect your home’s structure and indoor air quality.
Disinfecting a crawl space requires a methodical approach. First, clear all debris and remove old liners and insulation to eliminate contaminants. Then, apply a strong bleach solution or borate spray to eradicate mold spores and mildew. Ensuring complete surface coverage and allowing ample drying time establishes a sanitary environment and prevents future infestations.
A crawl space serves vital functions by providing access to essential systems, including electrical wiring, plumbing, and HVAC ducts. It also offers a buffer zone that aids in moisture control and protects underlying structural components.
Yes, crawl space encapsulation is a worthwhile investment in protecting your home. Crawl space encapsulation locks out moisture, controls humidity, and blocks pests and harmful pollutants like radon gas. Those benefits boost indoor air quality and protect beams, joists, and insulation, giving your home long‑term structural stability and safeguarding your family’s health.
Prevention is the best way to keep water out of your crawl space. A dehumidifier and sump pump can help control moisture levels, but grading the landscape to redirect water away from the foundation is most important. Additionally, seal foundation cracks and install reliable drainage systems such as a French drain to maintain a consistently dry environment.
Yes, repairing your crawl space foundation is critical, regardless of how minor the issue may seem. Foundation problems arise from enduring moisture, water intrusion, and unstable soil, which can lead to significant structural damage if left unaddressed. Hiring a licensed structural engineer or foundation repair professional guarantees your home’s long-term stability and safety while preventing escalating repair costs.
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