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Avatar for John's Waterproofing
John's Waterproofing
4.3(
252
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Rainier, OR and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"John's Waterproofing has taken care of our basement waterproofing services for well over a decade. They are friendly, professional, timely, accommodating and we've never had any problems with the system they maintain over all these years. We really trust and rely on John's Waterproofing and are happy to continue to be customers. We will call on them year after year to take care of our sump pump and French drain system."
Trim around fireplace was removed and mold found along the base
Fiberglass was drooping away from the home, removing its insulation value
Fiberglass Insulation was falling down in clumps from water weight
This window had been upgraded and given trim to give a clean and finished look
Re removed the below-grade sections of the wall and waterproofed with ThermalDry Radiant vapor barrier and installed a drain system around the interior perimeter

+41

Response time9 hrs
Response rate100%
18 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.6(
915
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Rainier, OR and surrounding areas

Approved (Corporate)

In business since 2021

Free estimates

Warranties offered

Groundworks is the North America's leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we're there with one mission to repair, protect and improve their home. For state licenses visit Groundworks.com/licensing

Basement
Basement
Basement
Concrete
Concrete

+20

4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for TerraFirma
TerraFirma
4.1(
100
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Rainier, OR and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I was please with the estimator, Boston's knowledge and willingness to walk me through the process and unfamiliar territory of basement waterproofing. He was very knowledgeable and answers so many questions, at the time of the walk through as well as in the days after when I had questions after receiving other bids and trying to compare them. In the end, it was just my low budget that kept me from going with Terra Firma. I thought their system was excellent, and would have worked well with my basement, but I had to opt for a less expensive design."
A System Design Specialist helping a homeowner
Encapsulating a crawl space
Fleet of vehicles in our Portland, Oregon locatio
Loading up our truck for a piering job
Loading up a truck for a waterproofing job

+33

Response time10 mins
Response rate100%
123 neighbors recently requested a quote
Horizon Construction & Development, LLC
New to Angi
Basement Drainage Channels - Install

Serving Rainier, OR and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

Horizon Construction & Development LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

4 neighbors recently requested a quote
Avatar for J.S. Chappell LLC
J.S. Chappell LLC
New to Angi
Basement Drainage Channels - Install

Serving Rainier, OR and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

We offer a full service one stop shop… From Dust to drapes we cover everything in between. We are leaders in Residential New Construction and Home Renovations, New Development, Decks, Sheds, Shops, Additions. Our services also include our Commercial Remodeling side, no job too big or to small we’re here to be a pillar in our community and grow in the right direction. \n\nWe take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. 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 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.

Jesse Chappell
First Coat
New Look
Sand
Remodel

+29

Response time2 days
Response rate86%
Avatar for TerraFirma Foundation Systems
TerraFirma Foundation Systems
4.4(
238
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Rainier, OR and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"I recently hired TerraFirma to raise my house several inches and level out my basement floor. Working with TerraFirma Foundations was a great experience, from start to finish. Everyone involved in the project was very friendly and professional. I was kept in the loop, as to what was happening, every step of the way. I would definitely recommend this group to anyone needing help with their foundation."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time7 hrs
Response rate100%
Recommended by89%of homeowners
Eliseo 1 call does it all
5.0(
15
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Rainier, OR and surrounding areas

In business since 1984

Free estimates

Emergency services offered

I, am a one man show I grew up in construction. I have 32 years experience. I, am not cheap but quality and reliabilty does pay. I, charge an hourly rate of $50.00 plus a $35 daily trip fee. I, encourage customers to send me photos to my phone. This helps me to analyze your project.

Recommended by100%of homeowners
Avatar for Western Construction Systems, LLC
Western Construction Systems, LLC
3.5(
80
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Rainier, OR and surrounding areas

In business since 1987

Free estimates

Emergency services offered

Western Construction Systems, LLC.Is a local, family owned and operated Specialty Construction Company in Business since 1987 and is an industry leader in cost effective Basement Waterproofing, Restoration and Structural repair. We are committed to business integrity and honesty through hard work, organization, courtesy and communication. Provider of Superior Service, Quality Product and Competitive Pricing. FREE ESTIMATE!

Recommended by88%of homeowners
Ethereal Elements
4.5(
85
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Rainier, OR and surrounding areas

In business since 1993

Free estimates

Emergency services offered

"Ethereal Elements provided exceptional, professional and quality work repairing my basement wall leak. Dealing with Q was very easy, he is personable and to the point. Dale, who performed the work knew exactly what he was doing, he was quality oriented from start to finish. The work was completed on 4 October, I held off writing this feedback in hopes we would have a couple of extreme downpours so I could verify the basement would not leak. Q guaranteed the basement would not leak again, or they would come out and fix it. The cost of this job was reasonable and I was able to use the discount coupon. I would hire Ethereal Elements again."
Front Entry
Additional Photos
Front of Garage
After Framing Repair
Siding Installation

+2

Recommended by92%of homeowners
Showing 1-10 of 31
Basement Waterproofing questions, answered by experts

Below-ground shelters are the best in terms of durability, but there is a risk of flooding and obstruction. Modern technology and rigorous construction requirements make above-ground shelters a better option for accessibility, safety, and, usually, your budget. They may not have the same aesthetic appeal, but many of their features make above-ground shelters a better option. 

Methods include interior sealants, exterior excavation and waterproofing membranes, sump pump installation, and vapor barriers for encapsulation. Techniques vary based on the structure and severity of moisture issues.

Preventing future basement flooding often involves installing sump pumps, improving drainage, sealing foundation cracks, and maintaining gutters. Costs vary, but preventive measures can range from a few hundred to several thousand dollars, depending on the solutions chosen. Investing in prevention can save you money on future flooded basement cleanup costs and repairs.

Preventing water accumulation involves regular inspections, maintaining effective drainage systems, ensuring proper roof maintenance, and taking preventive measures against heavy rainfall or floods.

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

The Rainier, OR homeowners’ guide to basement waterproofing services

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