
Angi Approved
In business since 1986
Free estimates
Emergency services offered
"Mark and his crew were terrific. Professional all the way. Pleasure working with them. Will use them again."


Angi Approved
In business since 1986
Free estimates
Emergency services offered
"Mark and his crew were terrific. Professional all the way. Pleasure working with them. Will use them again."

Angi Approved
In business since 1984
Free estimates
Warranties offered
"Avoid Guardian Basement – False Promises and Poor Customer Service Two years ago, I hired Guardian Basement to fix a water issue on the front wall of my basement. Joel came out, sold me on their system, and guaranteed I would have a dry basement. We also replaced two sump pumps and had the sump well dug deeper. The main selling point was their lifetime guarantee. Fast forward two years, and I have the exact same problem. Every time there is significant rain, water rushes through the same wall. I reached out to Guardian Basement, and Joel scheduled a time to check it out. His tone was completely different this time—defensive and dismissive. Within five minutes, he claimed, “Your system is clogged.” He made this assessment without any real inspection—just by looking at the cement floor and wall. Now, here’s the catch: If you look closely at their so-called lifetime warranty, clogs are not covered. So despite spending thousands of dollars, I’m back to square one. To make matters worse, Joel was incredibly condescending and unpleasant to deal with. After this experience, I looked into their licensing with the state of Maryland and found multiple complaints against them. I am now in the process of submitting my own complaint as well. I would never recommend Guardian Basement to anyone. Save your money and go with a company that truly knows what they are doing and stands behind their work. If I could give them a negative number of stars I would."

Angi Approved
Super Service Award Winner
In business since 2010
Free estimates
Warranties offered
"Josh, the representative from Basement Gurus was outstanding! We had experienced a water issue in our finished basement. Josh thoroughly examined the interior and exterior of the home and determined that the leak might be plumbing related. Josh could have very easily exploited our ignorance and suggested a solution purely beneficial to his company that may not have addressed the underlying cause of the problem. Instead, he demonstrated his integrity by realistically assessing the situation even if it would jeopardize the sale. This is commendable particularly in this era where cutthroat business practices are commonplace. I highly recommend Basement Gurus. They are fortunate to have an employee like Josh who exhibits concern for the customer at such a high level. "

Angi Approved
In business since 1987
Free estimates
Emergency services offered
"Quick, efficient, super communication, great cleanup. Highly recommend."

Angi Approved
In business since 2017
Free estimates
Emergency services offered
"Great communication!"

Angi Approved
In business since 2017
Free estimates
Emergency services offered
"Ed fixed the problem 2 thumbs up!"

Angi Approved
In business since 1987
Free estimates
Warranties offered
"Our 25+ year-old French drain system in our 100-year-old basement was showing signs of failure, so we contacted several companies to get advice on what to do. Jason of AA Action was very professional and helpful when he performed his initial inspection of our basement, and had very good ideas on what needed to be done. The price he quoted for the work was also, based on what we had read, reasonable. We ended up going with another company recommended by Angi, but only because it brought up a couple of options that we had not thought of, and we felt comfortable with them doing the extra work. We were not at all unhappy with AA Action's suggestions or pricing - it's just that the other company's additional ideas made sense for our circumstances."

Angi Approved
Super Service Award Winner
In business since 2004
Free estimates
Warranties offered
"I highly recommend NV Waterproofing & Foundation Repair! The work crew, Alfredo, David, and Javier were excellent! Alfredo Hernandez, the Foreman, kept me updated every step of the process, thoroughly answered every question I had, and addressed all concerns with expert problem solving and skill. These three men were in my home for a couple weeks doing extensive foundation and waterproofing work. They were always professional, courteous, and kept the work space clean. I was able to leave home for appointments with full confidence and trust in this crew. The sales manger, Brendan Feehan, was incredibly knowledgeable as well, and was able to solve every problem with my complex foundation and waterproofing issues. He was accessible to answer any questions I had throughout the process, and available to stop by as needed. Brendan is professional, helpful, and an expert in this profession. He's not just selling products. He understands the complexities of old and new construction"
In business since 1945
Free estimates
Emergency services offered
"Initial rep was great and informative. Felt comfortable with initial sale. Hardly had any contact from customer service except for the payments. There were several delays that we were not informed about unless we called to ask. Took 7 months before they showed up to begin project. Only 1 person was sent to build steps. Took a week. Hard worked, hardly took a break. Had to call again to see when they would come to pour patio. Never knew when they were coming, they just showed up. Hardly spoke with the homeowners. Inspection paperwork was just left on porch. Additional paperwork that is "required by the County" had to be completed by homeowner and taken to Court house to be notarized and filed and also provide a copy back to Long Fence. Time sensitive materials which added to homeowners to-do list. Gave this contract to LF on the surface of their history and appearance of a 'good local company' but should have stayed with original contactors in VA. Puddle of water forms when it rains"
In business since 1974
Free estimates
Emergency services offered
Atlas Tree Service has proudly been serving Maryland DC & VA Since 1974. We offer at no cost Estimates and any other Tree care Or planting Services from one of our on staff ISA Certified Arborist. Atlas Tree Service is a MD DNR License Tree Expert #435. We are fully insured and available 24 hours day 7 days a week for your connivence. Atlas Tree Service offers a wide range of Discounts for Active & Retired Police & Military, Senior & Community Discounts.You may reach us by phone or email at #240-464-6361 or Email: atlas.tree@aol.com "We Are Proud To Be Your Choice for All Your Tree Care Needs"
From average costs to expert advice, get all the answers you need to get your job done.

Who installs french drains? Learn which pros to hire, other options, and how pros get it done. Start your french drain hiring guide now.

Learn who to call for foundation repair. Compare foundation repair contractors vs structural engineers and get clear steps to fix issues today.

Wondering who inspects home foundations? Learn when to call a structural engineer vs. a home inspector and what each pro checks.

Who to call for water in the basement or crawl space? Learn whether to hire a plumber, contractor, or structural engineer and what to expect

Wondering who inspects crawl spaces? See if a home inspector or crawl space contractor should handle your crawl space inspection and what to expect.

If you need to waterproof your basement, consider essential cost factors, including basement size, sealant type, home age, and more.