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TRUSTED BY TIMONIUM, MD HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon98
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Timonium

Avatar for AA Action Waterproofing Inc
AA Action Waterproofing Inc
4.7(
383
)

Serving Timonium, 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."
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+17

Response time9 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Guardian Basement Waterproofing
Guardian Basement Waterproofing
4.5(
23
)

Serving Timonium, MD and surrounding areas

Approved

In business since 1984

Free estimates

Warranties offered

"So far we've had two rain storms and no water. The guys who dug out the french drain were friendly and professional. Joel, the sales rep. was easy to talk to and pleasant to deal with. Although I think they may have been a bit, maybe 10 percent more in cost than several other companies we looked at, we felt they were worth it. 2 days to finish the job and no water in the basement to date. Money well spent!
"
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Response time1 day
10 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Brother's Waterproofing, LLC
Brother's Waterproofing, LLC
4.8(
43
)

Serving Timonium, 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 rate89%
34 neighbors recently requested a quote
Avatar for Quality 1st Basement Systems, Inc
Quality 1st Basement Systems, Inc
4.6(
230
)

Serving Timonium, MD and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"I reached out to this company for a sump pump upgrade and a cracked wall repair. The technician who did my install was very polite and informative. We've had several big storms since my installation was done and I'm happy to say my basement has remained totally dry. I'm very glad I chose this company, I would recommend them to anyone in need of help with their basement!"
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+129

Response time10 hrs
Response rate100%
24 neighbors recently requested a quote
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
183
)

Serving Timonium, MD and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"This was a huge job. A complete basement waterproofing - new internal drains installed and two new sump pumps installed. The guys were great - came on time worked hard all day and cleaned up after themselves. The only negative was at the completion of work when it was time to pay the amount was less than what was originally quoted. I told the guy that and he insisted that it was what he had. I even showed him the quote on paper. I paid it - glad it was less, but a few days later got a call from the office telling me I needed to pay another $1600 (the difference between the original quoted price and at the time of service price) I told her what the guy told me and she got a little rude saying "well you knew what the quoted price was" - yeah I DID know and was prepared to pay but after install HER guy insisted it was the price he had. I wasn't trying to get out of paying but the confusion on how much it costs was with the people working there. I didn't appreciate her attitude as if I was trying to skimp out of paying. Nevertheless, I ended up with this additional payment. However, the work is supposed to be guaranteed for life. No complaints there."
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Response time2 days
29 neighbors recently requested a quote
Recommended by92%of homeowners
All Aspects Waterproofing, LLC
4.6(
188
)

Serving Timonium, 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
23 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
4.7(
113
)

Serving Timonium, MD and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Hired them for 3 projects I have installed this basement waterproofing solution in 2 homes. System speaks for itself. Nothing better on the market. Work was first rate. Expectations were presented prior to the project. Details on what would happen and how the project would go. Would not hesitate to use again ERV installed New basement egress. This project did not go as planned, but not at the fault of basement systems. Was originally supposed to get a BILCO door but due to unforseen issues, that was not able to happen. They ended up installing a new staircase from my basement to ground level. Work was first rate and ended up better than a bilco door. Company re landscaped and everything is as it was. All work performed was top notch and no issues on anything they have done"
Show Booth
Tough day
Found it in a crawlspace
What is it?
Found it in a crawlspace

+142

Response time1 day
Recommended by88%of homeowners
Avatar for Basement Gurus, LLC
Basement Gurus, LLC
4.7(
211
)

Serving Timonium, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Warranties offered

"Basement waterproofed correctly efficiently and quickly outstanding customer service Josh did great communicating throughout the entire process and left no question unanswered"
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
750 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Always Waterproofing
Always Waterproofing
4.1(
420
)

Serving Timonium, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Credit card accepted

"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."
Updated concrete deck
Cozy front porch
Response time10 hrs
248 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for AFFORDABLEBASEMENTWATERPROOFING.COM INC
AFFORDABLEBASEMENTWATERPROOFING.COM INC
4.0(
108
)

Serving Timonium, 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
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Waterproofing

+88

Response time1 day
1 neighbors recently requested a quote
Recommended by83%of homeowners
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Showing 1-10 of 158
Basement Waterproofing questions, answered by experts

The purpose of soffits is to circulate air, so a blocked soffit means the air in your attic becomes stagnant. This can lead to a number of problems, mostly moisture-related, that can cause damage to your health and your home. The good news is that unclogging soffits is relatively straightforward, and if your attic is easy to access, an easy DIY project.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast—ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.

Permits may be required for major repairs, structural work, or electrical and plumbing restoration after a flood. Check with your local building department to determine permit requirements and associated fees for your flooded basement cleanup project. Obtaining the correct permits helps ensure work is done safely and up to code.

Yes, crawl spaces can attract bugs, especially since moisture tends to build up in the space, and moisture attracts pests. A good way to prevent pest infestation in your crawl space is to install a vapor barrier—called crawl space encapsulation—on the interior to seal the space, along with a French drain or some other kind of foundation drainage system outside to keep runoff out of your crawl space. You can also seal foundation cracks and repair damages to cut off access to pests.

In many homes, an unfinished basement is an ideal place for an in-ground pool. The concrete floors, protection against water damage, and access to the ground below your home make this a large contender. Speak with a local basement remodeling contractor to ensure your space is right for the large construction.

The Timonium, MD homeowners’ guide to basement waterproofing services

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