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Avatar for AA Action Waterproofing Inc
AA Action Waterproofing Inc
4.7(
383
)
Foundation Drainage - Install or ReplaceBasement Drainage Channels - Install

Serving Saint Leonard, MD and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Excellent job all around. The work was done in late March, 2019, but I waited to post this review until after a heavy rainstorm. The storm of July 8, 2019 (>4"/hr) would normally have caused water to seep up through the concrete floor. After the storm, there was not even a drop. The sump was dry. The job was messy: jackhammers and lots of dust. They left it clean. One cannot even see where they cut the lawn to get the pipe to the curb. My only critique is that the new concrete poured to replace the broken floor should have been completely leveled. From initial estimate to installation, excellent work."
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+17

Response time9 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Best Buy Waterproofing, LLC
Best Buy Waterproofing, LLC
4.4(
155
)
Foundation Drainage - Install or Replace

Serving Saint Leonard, MD and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I had a great experience with Best Buy waterproofing. I contacted them for inspection due to water rising underneath my tile in the basement. They responded very quickly and had someone out for the inspection a day later. Ed completed my inspection and was very informative and communicative throughout the whole process. He didnâ t try to scare me into getting any services and was very patient with me. Any questions I had he was on it and available. When I made my final decision it was quick and a painless process. The crew cleaned up well and walked me through the work they had done. They installed a new drain and sump pump. Might I add they made my installation very esthetic by placing the line in the wall to hide the pipes when the dry wall is replaced. I will definitely recommend to friends and family!"
Response time2 days
2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for JES Foundation Repair
JES Foundation Repair
4.2(
1,028
)
Sump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Saint Leonard, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"I have a large basement - ever since Hurricane Sandy I have had water leakage into the basement after a big rain - which continued to get worse. JES installed an internal drain system that is working great! The installation crew of Mizael, Cedrick, Dionte and Keenan did an excellent job of professionally installing the drain and cleaning up afterwards. They were very responsive to my questions and concerns. -- Wish I did this 5 years ago!"
Protect Your Basement
Protect Your Basement Before & After
Correct Your Wet Basement
Waterproof Your Basement
Protect Your Concrete Before & After

+16

239 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for J&R Chavez Landscaping LLC
J&R Chavez Landscaping LLC
4.4(
91
)
Yard Drainage

Serving Saint Leonard, MD and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"After receiving 3 quotes for replacing my deteriorating retaining wall, I chose J&R Chavez Landscaping. Positive reviews, the owner’s assessment, and a reasonable estimate convinced me. I accepted their bid on December 29, 2025. J&R submitted the permit request two days later. Unfortunately, the permit was approved on February 13, 2026, outside contractor control. Work began on February 16, with a good crew working when weather permitted. Delays due to quite bad winter were unavoidable. They discovered the old wall lacked a proper footing so the estimate was adjusted to install a new footing. Jose was transparent about necessary adjustments. The installation took until April 4, 2026, due to weather delays and town inspections. I’m very pleased with the strong, well-drained wall. I enjoyed dealing with J&R Chavez Landscaping with two small issues, communication about delays could be improved and Jose never got back to me about some agreed post job landscaping. Still, great job."
Landscaping
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+36

Response time2 days
10 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for John Krause Construction
John Krause Construction
4.4(
168
)
Yard Drainage

Serving Saint Leonard, MD and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Daniel and his partner installed new appliances and tile in my kitchen, I had new counter tops installed as well in my kitchen and master bathroom. I also used John Krause for a repair to my shed from water damage again Daniel and his partner did an excellent job for me. Very please with Daniel and his work. I believe Daniel is a sub-contractor for John Krause, but none the less in my opinion he did really good work and communicated with every step of the way."
Pool House Exterior with Floor-to-Ceiling Windows & Doors, Two Pergolas, & Cupola with Windows
Modern Farmhouse Kitchen
Luxury Bathroom Renovation with Free-Standing Clawfoot Tub & Chandelier
Pool House - Side Entrance
Modern Farmhouse Kitchen with Farmhouse Sink, Pull-Down Faucet, Stainless Steel Range, Range Hood, Double Wall Oven, and Dishwasher

+113

Response time2 days
Response rate100%
13 neighbors recently requested a quote
Avatar for Crawl Space Brothers- MD
Crawl Space Brothers- MD
5.0(
5
)
Foundation Drainage - Install or ReplaceBasement Drainage Channels - Install

Serving Saint Leonard, MD and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

Crawl Space Brothers is a family-owned company proudly serving Rockville and nearby areas, including Gaithersburg, Germantown, Potomac, Bethesda, Takoma Park, Chevy Chase, Silver Spring, Washington, D.C., and Arlington. We provide expert solutions for crawl space repair, foundation repair, basement waterproofing, drainage solutions, and moisture control. From resolving crawl space moisture to repairing foundation cracks and wet basements, our tailored services protect your home. With advanced techniques and years of experience, we deliver reliable, long-lasting results. Schedule a free inspection now and see why homeowners trust Crawl Space Brothers.

Crawl Space Brothers
Crawl Space Brothers
Crawl Space Brothers
Crawl Space Brothers
Crawl Space Brothers

+5

3 neighbors recently requested a quote
Hydro-Solutions, Inc.
3.2(
3
)
Basement Drainage Channels - InstallFoundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Saint Leonard, MD and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

Hydro-Solutions, Inc., are experts in Basement Waterproofing and Foundation Repair. We are a locally owned and operated company, that values honesty and integrity in all aspects of our business. Our dedicated team of professionals, have many years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

Response time5 hrs
Recommended by100%of homeowners
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Drain Pipe Installation questions, answered by experts

A clogged air gap can cause a dishwasher not to drain. There are, however, other potential issues that can lead to improper drainage. For example, if you have attached the air gap to a garbage disposal and forgotten to remove the knockout plug, wastewater may backflow into the dishwasher. Check that the air gap is installed properly, and then look for clogs in the air gap and dishwasher filters. 

If you want to avoid using a snake to unclog a drain, or if you don’t have one, try vinegar and baking soda. Pour 1 cup of baking soda down the drain, followed by 1 cup of white vinegar. Wait for 15 minutes, and then run hot water (but not boiling water) down the drain to see if the clog is clear. Repeat multiple times as needed.

It’s possible to snake minor drain clogs yourself, provided they sit within a foot or two of the drain itself, but it’s usually best to hire a professional plumber regardless. Even experienced DIYers have a high chance of accidentally pushing the clog further into the drain using a drain snake or another tool, so hiring a plumber is the ideal course of action. A professional plumber can use camera equipment to locate and identify the clog, and remove the entire blockage to fix your issue permanently.

A sewage smell in your crawl space is usually from a damaged or clogged pipe leaking sewer gasses or actual sewage underneath your home, but there are some other common causes. Moisture, from poor or damaged encapsulation or a malfunctioning sump pump, can harbor mold and bacteria, causing a musty smell. Pests can also get stuck in your crawl space and die, which causes a sewage-like odor.

No, you should avoid using liquid drain cleaners. These chemicals, often packed with sulfuric or hydrochloric acid, can wreak havoc on your pipes, causing erosion and potential leaks. They’re also dangerous to your health. If you’re dealing with a stubborn clog, manual removal or a professional plumber is your best bet. Chemical drain cleaners can often make things worse, especially if the clog stays put and the chemicals linger in your pipes.

The Saint Leonard, MD homeowners’ guide to drain pipe installations

From average costs to expert advice, get all the answers you need to get your job done.