Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Frederick, MD

Enter your zip and get matched with up to 5 pros

TRUSTED BY FREDERICK, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon76
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Frederick

Avatar for AA Action Waterproofing Inc
AA Action Waterproofing Inc
4.7(
383
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Frederick, MD and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Job was promised to be less than two days. The crew arrived at the time agreed on and was thorough, covered walls not affected by the work and were finished by the end of the morning. I will recommend AA Action to anyone in need to basement waterproofing, crawl space improvements and related items."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+17

Response time9 hrs
Response rate100%
Recommended by92%of homeowners
Avatar for Brother's Waterproofing, LLC
Brother's Waterproofing, LLC
4.8(
43
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Frederick, MD and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"John the owner was very professional. He explained all aspects of the waterproofing work that was to be done. Any questions we had, he answered so that we understood what was to be done. He was respectful and pleasant during the entire process. When we left messages needing to speak to John, he was prompt in returning our calls or texts. John's crew was also professional and resp0ectful. They were thorough in performing the waterproofing job as John had explained it. The work was completed within the timeframe. The crew did a great job on the waterproofing as well as cleaning up the areas. We are very pleased with the completed. There has been an extremely heavy rain for an extended period of time since the work was completed. I can honestly say the water problem is no longer an issue--basement is totally dry. We believe we made the best choice in choosing John's company, Brother's Waterproofing, LLC, to do the work,"
Brother's Sub Floor Drain System
Sump Pump
Stairwell Rebuild
Stairwell Rebuild
Stairwell Build

+1

Response time1 day
Response rate88%
16 neighbors recently requested a quote
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
183
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Frederick, MD and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Basement Waterproofing Nationwide did excellent work in a timely and proffessional manner for a reasonable and appropriate fee. They said they would complete the work in 1-2 days and were done in one day. They were very careful and left things neater than they were before they came. We have used them before with great success and would use them again. So far, the problem we had, water in our basement, has not recurred, and our basement is bone dry. Tnank you Basement Waterproofing Nationwide."
Additional Photos
Response time2 days
33 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Basement Gurus, LLC
Basement Gurus, LLC
4.7(
206
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Frederick, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Warranties offered

"The team arrived on time to do extensive work on my basement floor and walls and outside underground drainage issues. They worked tirelessly all day to remove old concrete, lay a new pipe system, pour new concrete, install sump pump, and seals. They prepped the walls and sealed and painted with Loxon paint. Radon seals were included in the redone areas. The outside work included installation of a new underground drainage pipe with pop up exit drain. A rubber membrane was installed behind the house siding. We?ve had several days of heavy rain since the waterproofing work was completed and the basement floor and walls have remained dry. We recommend Basement Gurus to other homeowners experiencing waterproofing problems for dependable and satisfying solutions."
100 Ft 4 inch HDPE to drywell
Concrete Replacement
Egress Installation
Walls After Wall Pin Installation
After Concrete has been removed

+339

Response time1 day
538 neighbors recently requested a quote
Recommended by72%of homeowners
All Aspects Waterproofing, LLC
4.6(
188
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Frederick, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"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!"
Response time1 day
19 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for NV Waterproofing & Foundation Repair
NV Waterproofing & Foundation Repair
4.5(
185
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Frederick, MD and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Emergency services offered

"We needed to add supports under our main floor as well as waterproof the crawlspace. I have come across at least a dozen contractors of all shapes and sizes in the DC area since we moved here a year ago and none has taken care of me like Casey and his team at NV Waterproofing. Not only are they hard working, courteous and timely - they also are completely transparent and take pride in doing the job right the first time. Their passion for customer service and a job well done really resonates and now my house is stable and dry. Thank you Casey, Ricky & Pap! Highly Recommend!"
Crawlspace Encapsulation
Damp dirty crawlspace with Rodent infestation
Additional Photos
Exterior drainage
Wall Anchors for failing foundation walls

+29

Response time1 day
Response rate99%
44 neighbors recently requested a quote
Avatar for AFFORDABLEBASEMENTWATERPROOFING.COM INC
AFFORDABLEBASEMENTWATERPROOFING.COM INC
4.0(
108
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Frederick, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I am a new homeowner and I purchased the property with the warranty of the previous owner. I needed new batteries for the sump pump and window well cleaning, I recieved immediate service and the warranty was honored. The technicians were very knowledgeable and courteous. I am very impressed with the work that they did in my basement. I would highly recommend this company to anyone needing water proofing. The did a great job."
Waterproofing
Waterproofing
Waterproofing
Waterproofing
Waterproofing

+88

Response time1 day
1 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Best Buy Waterproofing, LLC
Best Buy Waterproofing, LLC
4.4(
155
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Frederick, MD and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"We had a basement waterproofing issue. Shopped around a couple of companies. With the best rating on google, and with good reason, Best Buy Waterproofing was our choice. Rob was knowledgeable, diligent, patient and open towards our questions and concerns. Best experience I had with any company rep to date. He came out twice to our place (once the first time to look at the issue, second before he took the work to make sure we all are on the same page.) And then he was there before the work was started to make sure all of us were on the same page. The crew that came out (Darwin, Juan, Raul, Hammie, Chilo) were very careful about their work, respectful, and meticulous. They plastic sealed the work area to prevent dirt, and broom cleaned the area after they were done. Even after the work was done and the transaction was completed, Rob came out to check the work and to make sure it was up to his standard. He olso brought with him the mold treatment up on my request and took care of that as well. Thank you Rob! I highly recommended Best Buy."
Response time2 days
5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Once & Done Waterproofing Solutions, LLC
Once & Done Waterproofing Solutions, LLC
4.9(
60
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Frederick, MD and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Once and done waterproofing helped me out with a small annoying leak Iâ  ve had around a pipe. The owner called me right away, came out the next day for an estimate, and fixed the leak the day after. His crew is friendly and courteous and hard working. Explained every step they weâ  re doing. Did such a great job, I had the bury some drain pipes and install a rain water reservoir. Very reasonable pricing and veteranâ  s discount."
Demo and Install Phase
Demo  Phase
Demo and Install Phase
Install Phase
Demo and Install Phase

+14

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 133
Basement Waterproofing questions, answered by experts

For Frederick’s climate, exterior foundation walls benefit from flexible waterproofing membranes and elastomeric coatings. Install perforated PVC drain pipes surrounded by gravel for effective drainage. In crawl spaces, use a thick vapor barrier and closed-cell spray insulation to block moisture. Polyurethane sealants are best for foundation crack repair, and a battery backup sump pump helps protect against power outages during local storms.

Helpful?

In Frederick, basement waterproofing is often needed for foundation walls and floors, especially where clay soils and freeze-thaw cycles cause shifting or cracks. Window wells in split-level homes and crawl spaces in newer neighborhoods can collect moisture. Homes near Monocacy River or with older stone foundations are also prone to seepage. Regularly inspecting these areas helps prevent foundation repair issues and long-term water damage.

Helpful?

In Frederick, basement waterproofing maintenance should include clearing gutters and downspouts before heavy rain, inspecting sump pumps each spring, and checking for new cracks after winter thaws. Monitor humidity levels with a dehumidifier during summer, and keep window well drains free of debris. It’s also wise to check that soil slopes away from the foundation and schedule professional moisture control inspections every few years.

Helpful?

When hiring a basement waterproofing pro in Frederick, look for experience with local soil movement and knowledge of regional moisture control challenges. Ask for references from nearby homes and make sure they’re familiar with Frederick’s seasonal rainfall patterns. Confirm they carry insurance for water damage and understand the area’s drainage regulations. Choosing a contractor with expertise in sump pump installation is also important.

Helpful?

In Frederick, you can address small basement waterproofing issues by sealing hairline cracks with hydraulic cement on dry days and keeping gutters clear to direct water away from your foundation. Use a dehumidifier to control indoor moisture and ensure crawl spaces are well-ventilated. If you notice cracks wider than a quarter inch, standing water, or electrical hazards, contact a local foundation repair specialist promptly.

Helpful?

The Frederick, MD homeowners’ guide to basement waterproofing services

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