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Avatar for Groundworks
Groundworks
4.5(
276
)

Serving Onamia, MN and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2005

Free estimates

Warranties offered

"David crawled into our crawl spaces, inspected our waterproofing system, did testing and maintenance on all three sump pumps and left us in great shape for spring rains. Exactly as promised and great value."
Foundation
Foundation
Foundation
Foundation
Foundation

+16

Response time3 days
14 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Integrity Sewer Solutions
Integrity Sewer Solutions
5.0(
12
)

Serving Onamia, MN and surrounding areas

In business since 2024

Emergency services offered

Warranties offered

"Greydon and his team made this project I was dreading seamlessly easy and ALSO affordable. I was provided 3 other quotes ranging from $8,000-$15,000. He was straight forward with me and kept me updated in all aspects. I’d gladly pay $5,000 for a sewer repair to work with a honest, dependable and all around amazing company!"
Root intrusion compromised pipe
Drain cable that was was stuck in a line
Obstruction cause by inadequate liner cutout from previous repair company
New installed dual cleanouts access
Dual directional cleanout installation with the risers installed

+10

Recommended by91%of homeowners
Avatar for Betterliving Sunrooms By Portico
Betterliving Sunrooms By Portico
3.7(
41
)

Serving Onamia, MN and surrounding areas

In business since 2009

Credit card accepted

"We contacted them for an estimate on our basement.  Initial phone call and connection went well, very professional, quick, and prompt.  Once the rep was at our home he went into a "pitch" vs. listening to what we said we already knew we wanted.  We even had a sketch.  Eventually we went to review the space, take measurements, etc.  We then started to pick out materials......he brought all the samples but then put together an evaluation based on square foot and overall price of our home and used that based on the square footage of our basement to determine a "fair" value........which was $100/sq ft.  That would have equated to over $100,000 basement.  Then he said how much "fairer" their price was at the quoted rate.  We were too far apart in our estimates which is fine with me, but at the end he said if I obtained a quote that was lower ~ to give him a call and they'd see what they can do.  At that point, I believe "no thanks".  Give me your best price up front.  The entire visit took almost 3 hours.  It was a big waste of time for all unfortunately as we had no intent to spend that much.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Recommended by69%of homeowners
RD Concrete LLC
4.0(
8
)

Serving Onamia, MN and surrounding areas

In business since 2022

Free estimates

Emergency services offered

We take great pride in our expertise, quality and customer service that we provide. We exceed the consumers expectations. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take our time to communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Fire Ring
Patio
Front Entry Sidewalk
Garage Slab
Front of House Patio

+7

Response time3 days
Recommended by57%of homeowners
NorthStar Basements
New to Angi

Serving Onamia, MN and surrounding areas

In business since 2010

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Avatar for Affordable Drainage Systems, Inc.
Affordable Drainage Systems, Inc.
3.0(
3
)

Serving Onamia, MN and surrounding areas

In business since 2011

Free estimates

Our company is based on the belief that our customers' needs are of the utmost importance. Our entire team is committed to meeting those needs. As a result, a high percentage of our business is from repeat customers and referrals. \n \nWe would welcome the opportunity to earn your trust and deliver you the best service in the industry.

excavating
excavating down to footings
Excavation
Excavation
Ready for Core fill

+21

Response time2 days
Recommended by66%of homeowners
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Basement Waterproofing questions, answered by experts

The difficulty of adding a basement to an existing house can vary depending on the house’s location, the size of the basement, and the type and condition of the existing foundation. Adding a basement is a job best handled by the pros, so you’ll need to enlist professional help for this project.

No, your basement dehumidifier doesn’t need to be on 24/7. While it’s an excellent tool for tackling damp, musty air, especially in humid seasons, leaving it running nonstop can backfire. Over-drying the space can mess with your sinuses, warp wood, and even crack certain materials. Instead, only use your humidifier when moisture levels rise above 50%, and then give it a break when the humidity levels drop.

Covering the dirt floor in your crawl space with a vapor barrier helps insulate the space and improve the air quality in your home. It protects your crawl space from pest infestations, excess moisture, and mold growth. It also makes the crawl space less dusty, which means there’s a lower chance of dust mites breeding and causing allergic reactions in your home.

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

Yes, basement insulation needs a vapor barrier due to its susceptibility to moisture seeping in from the outside of the house. You should install a moisture barrier before you install insulation or purchase insulation that comes prebuilt with a moisture barrier to avoid water damage in your insulation and costly mold and water remediation expenses. 

The Onamia, MN homeowners’ guide to basement waterproofing services

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