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TRUSTED BY JOHNSTON, IA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon46
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Johnston

Avatar for DBI Foundation Repair
DBI Foundation Repair
3.8(
16
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Johnston, IA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"The crew was absolutely amazing! Very impressed with how professional, polite, and personable they all were. The management and crews are top notch! Management answered all the questions I had, walked me through what steps they were going to take to get things done. Dustin was extremely thorough, knowledgable, and took time to explain the recommended systems. I will 100% be utilizing them in the future strictly based on the level of trust and quality he presented! His communication was fantastic, they always arrived on time. They were careful with the property, always cleaned up when they were done. I will absolutely hire them again to complete any future foundation/basement work and I will absolutely recommend this company without reservation or hesitation. They stand behind their work."
After the egress window installation
Before the foundation replacement
Before the egress window installation
The final work
Foundation
Replacement

+26

35 neighbors recently requested a quote
Recommended by64%of homeowners
Avatar for BAM! Basements and Masons Of Des Moines
BAM! Basements and Masons Of Des Moines
4.1(
18
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Johnston, IA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

Welcome to B.A.M! Basements and Masons, Central Iowa's premier basement repair and masonry company! B.A.M! is a local business founded in 2012 by Mark Williams. After working several years with different basement repair companies, Mark saw a need for better value and customer service in the industry, so he decided to open his own business. He chose the motto, Every consideration given to total customer satisfaction with the highest quality workmanship, the pillar of the B.A.M! name.\n\nTogether, we at B.A.M! will cultivate our reputation for excellent service and quality work. With our motto in mind and a smile on our face, we look forward to helping the people of Central Iowa improve their homes.

Egress window installs
Egress window installs
Egress window installs
Egress window installs
Egress window installs

+16

Response time1 day
44 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for AccuLevel, Inc. - Iowa
AccuLevel, Inc. - Iowa
4.0(
215
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Johnston, IA and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"This is a great company to use in making a 141 year old basement waterproof. I look foreward to having a waterproo basemant. Craig was pleasant and went the extra mile to make the experience great."
Wall Anchors
Exterior Foundation Repair
Helical Pier Installation
Basement Carbon Fiber Strap Repair AFTER
Horizontal Crack Bowed Walls BEFORE

+21

Response time9 hrs
200 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Anchored Walls
Anchored Walls
4.8(
5
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Johnston, IA and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

Anchored Walls, Inc. is a locally-operated business dedicated to repairing or stabilizing dangerous and common basement problems in Iowa for over 40 years. Based out of Winterset, we are proud to be a leading foundation repair and basement waterproofing specialist company that puts honesty and quality first. With thousands of satisfied customers across the state, we’re always happy to share our customer list — just ask!

Vertical Cracking
Floor Settlement
Foundation Repaired
Helical Assembly
Helical Brackets

+3

Response time4 days
6 neighbors recently requested a quote
Avatar for Stone Concrete and Foundation
Stone Concrete and Foundation
5.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Johnston, IA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Josue met with me 3x during the bid process to help me come up with a plan to address all of my specific water issues. He really cared about meeting my needs. His crew was great, too. They were warm and friendly, showed up on time every day, completed the work timely, and cleaned up promptly. I felt they really cared about my property and my satisfaction. They did a great job and were worth every penny. I highly recommend this company!"
Basement waterproofing
Basement waterproofing
Basement waterproofing
Avatar for Better Basement Technologies LLC
Better Basement Technologies LLC
4.6(
54
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Johnston, IA and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"According to the website, the person we met with is a "Foundation Expert."  Per his advice, we needed about $8000 in beams because the cement blocks showed bowing/cracking.  This house is only 650 sq feet and built in the 1950s.  He basically implied that the walls had extensive damage and the house would never sell unless we put beams up.  He deemed the repairs done by a previous homeowner as very bad and said they needed to be fixed immediately.  The waterproofing system was an additional $3500.
The whole thing seemed more like a sales pitch using the fear factor of a bad foundation.  And, I was put off by the "buy now" price difference.  They would give me a "realtor discount" if I agreed to do the work and pay the deposit right away.  Like I'd ever spend $12K without getting other bids and researching the heck out of it.
We decided to hire a structural engineer that wasn't trying to sell us something to inspect the basement and foundation.  Paying the engineer a couple hundred bucks was worth every penny.  After a full inspection, his professional opinion was that there were no structural issues.  The engineer report states that while the repairs made by the previous homeowner made were "unsightly" they are effective.  Meaning - the method they used was ugly, but the support it provided was effective and adding additional beams was unnecessary. 
I would highly, highly recommend getting a structural engineer before hiring any company to basement repairs.  It saved us about $8000.
"
Egress Window with Well & Lid
Replacemet Basement Wall
Water Trek & Sump Pump
Recommended by89%of homeowners
Avatar for Anchored Walls, Inc.
Anchored Walls, Inc.
4.5(
39
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Johnston, IA and surrounding areas

In business since 1978

Free estimates

Warranties offered

"They did a great job installing a sump pump. The crew was in a hurry to leave and didnâ t clean up very well, but after calling back, they were more than willing to do anything to make it right."
Basement Interior Water Control
Basement Interior Water Control
Basement Interior Water Control
Response time1 day
Response rate88%
Recommended by96%of homeowners
Showing 1-10 of 31
Basement Waterproofing questions, answered by experts

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.

While water in your basement is unlikely to make you sick unless it’s coming from a sewage backup, mold is likely to start to grow in wet areas within 24 hours, and mold can make you sick. According to the Centers for Disease Control and Prevention (CDC), inhaling mold spores can cause allergy symptoms, including runny nose, itchy eyes, difficulty breathing, wheezing, and itchy skin. Individuals with pre-existing respiratory issues like asthma and immunocompromised individuals are at an elevated risk of symptoms when inhaling mold spores.

“Basement waterproofing” sometimes refers to applying a waterproof sealant to basement walls, in which case you would use a waterproof paint, often made of latex. However, there are many methods you can use to waterproof a basement, including exterior drainage systems, interior drainage systems, dehumidifiers, and more. As such, the materials you use can vary depending on the methods you use.

There are a few downsides to a wet room, the most important of which is the risk of mold growth from the moisture and humidity. Standard bathrooms can have the same issue, but wet rooms are more likely to experience problems because water is less carefully contained. You also have less privacy since the entire bathroom is open, and the room must include waterproofing, which makes wet rooms more expensive to install than regular bathrooms.

A moisture or vapor barrier helps separate the warm air inside your home from the cold air outside of it. Without it, your walls could collect condensation, mold, or other damage. Check your local building codes to see if including an interior vapor barrier is necessary for your building project or renovation, especially for rooms that are likely to be humid, like bathrooms.

The Johnston, IA homeowners’ guide to basement waterproofing services

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