Get matched with top basement waterproofing pros in Potomac, MD

"I needed to address a problem in one corner of my basement before an appraiser came in for a refinance that was in process. I was very appreciative of the companies that responded and fit me into their busy schedules on very short notice. Jason from A Action Waterproofing came by to give me an estimate for basement waterproofing. Two days earlier another company quoted $5,200 -- they would dig up a large bush and 2 smaller plants I had had for years to put in two protective layers (one plastic, one asphalt) for my exterior basement wall, then replace the dirt and mulch. At this point, I was just hoping for a lower quote. Jason let me know 3 hours before his scheduled arrival that he would be running about 1-1/2 hours late because he needed to take his daughter to an appointment, and asked if that would be OK. I certainly respect anyone who puts family first, so it was not a problem. As soon as Jason arrived we went to the basement. He said water was not leaking in and there was just discoloration on the floor with some on the lower wall. All that was needed was to clean the walls, apply hydraulic cement where the floor meets the wall, then paint with DryLok, and I could do that myself. I already had a can of DryLok that had never been opened. He said there was no damage to the interior and exterior walls. He did that during heavy rains there was one location where the downspout from my roof connected to the drain pipe that left my property where water could be released onto the ground, which should be addressed. I was so happy with his diagnosis that I wanted to pay for his call, but he refused. I'll take care of this before the appraiser arrives end of the week. Now just need to see what the appraiser says."

"We found Basement Waterproofing Nationwide to be highly ethical and very knowledgeable. A little over a year ago we had BWN perform some basement waterproofing. We were delighted with the work and the options presented to us as well as the speed with which it was done. This summer during the very heavy rains, we had some water seep into the basement so we called for an evaluation. As it turned out, the rebuild contractors (which we had opted to contract with a lower price provider vs. using subs hired by BWN) never communicated to us that the newly installed sump pump required an electrician and that it was not hooked up. This house is inhabited by tenants and we are not in the same state, so it's hard to tell where the communication breakdown occurred. Basement Waterproofing Nationwide's service rep however was extremely professional and helpful in delivering this bad news. He also checked and was able to confirm that the waterproofing was still good. He made a few suggestions like letting us know that he noticed where the drywall had been replaced that the outlet plates were never reinstalled. I also had some questions about the contract and he was very helpful and had the office fax me the pertinent info that same day. Lesson learned for me was that it would probably have been better to let BWN hire the contractors for the rebuild esp when you are out of town and unable to oversee. When there are heavy rains in the area like Baltimore had in July, it might take a few days for them to process the volume of calls especially if the nature of your request is minor. But they do respond. They are extremely professional and they stand behind their work."

"We are the 2nd owners of a 15 year old home. Don't know why the original owner/builder did not put a sump pump in the basement, as it would have been a cheaper option in the end. If you are building a new home with a basement, put a sump pump in, don't scrimp on what is a very valuable insurance policy. After looking at a handful of other companies to retrofit a sump pump in our cellar, we picked All Aspects Waterproofing, LLC. They did a great job! Very high quality work, and outstanding service. They did a great job! We enthusiastically recommend All Aspects Waterproofing to any homeowner!"

"From start to finish this company gets things done the right way. I would highly recommend to anyone needing any type basement work done especially waterproofing. These guys are the best in the business! Thank you Basement Gurus for my dry basement."

"AquaGuard waterproofed our leaky basement in 2003. French Drains, Sump Pump, Concrete work. Not a drop of leakage since. Eliminated the dampness from the basement. Sealed the basement while working to prevent dust getting to rest of house and cleaned up completely when done. Professional work!"

"Absolute professionals. Efficient and well Organized. James the owner is an absolute gem to deal with. I would recommend Always Waterproofing to anyone dealing with a leaky basement."

"Basement waterproofing and egress window"

"The entire Affordable Basement Waterproofing team are exceptional. From Monica and Kelly in the office to the Inspector, Ken, and the 3 exceptional gentlemen who came to our house to fix our Basement Foundation Leak; this is one of the most professional, helpful home repair / improvement teams that have ever done work on our home. Thanks a million Affordable Basement Waterproofing."

"Best Buy Waterproofing did a great job servicing our basement. The workman wore masks and were very aware of COVID-19. I would recommend them to anyone! The quality of their work was exceptional."

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This company and crew is very impressive.  Here's a little background info.  Our property required a lot of help due to rainwater and a broken clay pipe (50 years old).  The house sits on the side of a hill.  When it rains, the water comes straight to the length of the whole house.  The previous owner had installed a "point" drain system which was useless.  They also installed a sprinkler system surrounding the whole property which works nicely for the planting beds. 

When David and Grant came out to the house for an initial consultation, I was very concerned about the disruption of current drains, the sprinkler system, and the shrubs.  First, while walking around the property, they were able to talk me through their process and reassure me that it could be done.  I never felt rushed, and they were patient with all my questions.

Second, Grant gave me an itemized price list for my property, so I could see where the money would be going.  I wasn't sure if I could afford it all at the same time.  The scope of work was major, but he was able to break it down into stages.  Through more emailing with Grant, another visit to the property, and other Angie List contractors coming out, I choose Drainage and Erosion to do the whole scope of work.  Their winter pricing and customers service sealed the deal.

Here's a list of the work done:  Excavating along the length of the house and creating two 30' French drains which flow into 6" pipes extending all the way to the curb (under sidewalk) on both sides of house (95'), Extending and connecting 3 downspouts on right hand side of house into a 6" pipe, Adding 3 drain cleanouts, Capping the 50 year old clay pipe that broke, Installing new sub pump piping and connecting into drainage pipes, Waterproofing wall/slab of foundation on Sunroom and two basement walls, Sealing cracks in walls, Installing 3 new window wells, Restoring grade for drainage, Removing all debris including shrubs not wanted, Transplanting two trees, The promise that our sprinkler system will be working in spring when it's turned on or they'll come out and fix it.

The actual job took only two days as contracted.  Grant came out the morning work began to answer questions and make introductions.  The crew of 11 men were hard working (9am-7pm) and also answered my questions.  All of this work was done by hand digging which allowed them to carefully move my sprinkler system and maneuver around the other piping.  When they were done, they seamed the grass back beautifully.  You couldn't tell what had been done unless you looked very closely.  Also the drainage holes in the cemented curb look as though they have been there forever.  We have 4 holes on the right and 3 on the left.

I highly recommend this company.

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