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

Serving Longview, WA 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%
21 neighbors recently requested a quote
Avatar for Pacific Waterproofing & Foundation Solutions, LLC
Pacific Waterproofing & Foundation Solutions, LLC
4.9(
8
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Longview, WA and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"Very impressed with Darren: his work ethic, thoroughness of the work, cleanliness of the job site when the job was finished. He arrived when he said he would and stopped by when he was done for the day to let me know he was leaving. I certainly would recommend Pacific Waterproofing, LLC."
Response time2 days
7 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for TerraFirma
TerraFirma
4.1(
100
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Longview, WA 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%
107 neighbors recently requested a quote
Avatar for Legacy Plumbing and Excavation, LLC
Legacy Plumbing and Excavation, LLC
4.5(
75
)
Basement Drainage Channels - Install

Serving Longview, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Well, it's fixed. A learning experience ? get many bids and make sure the company wants your business. Pros ? Technicians were polite and respectful of my home while I worked in meetings all day. ? The pooling water issue in the basement was resolved, and the floor is now dry; the work was ultimately completed. ? Initial estimate visit was free, but not thorough ? Senior staff came out later to apologize and review the work. Cons ? Pricing was far higher than industry norms based on later bids. ? Avoidable scope changes and price increases after work began; two other plumbers said the job could have been done as originally quoted. ? Communication issues (delayed quotes, unclear explanations, forgotten site details). ? Work quality/finishing didn?t match the premium price; two professionals asked if we had done the work ourselves. Added pictures because I don't know plumbing, so you decide if you'd want this. ? Extra fees add up: 10% financing fee (Synchrony) and 4% credit card fee."
Sewer Repair
Excavation & Sewer
Response time9 hrs
Response rate95%
748 neighbors recently requested a quote
Avatar for Northern Utilities
Northern Utilities
5.0(
5
)
Basement Drainage Channels - Install

Serving Longview, WA and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!\n

Water line replacement
Water line replacement
Water line replacement
Water line replacement
Water line replacement

+18

3 neighbors recently requested a quote
Avatar for Service Pro Plumbing
Service Pro Plumbing
5.0(
5
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Longview, WA and surrounding areas

Approved

In business since 2023

Emergency services offered

Small jobs welcome

Welcome to Service Pro Plumbing, where family values meet expert plumbing solutions. As a family-owned and operated business, we are committed to offering a personalized, welcoming, and transparent experience for each of our customers. Our skilled professionals handle all your plumbing needs with precision and care, from routine faucet installations to complex sewer line replacements. We ensure every job is completed with the utmost attention to detail, minimizing disruption to your daily life.\n\nProudly serving Vancouver, Camas, Longview, and the surrounding areas, we specialize in emergency plumbing services for both residential and commercial properties. For reliable plumbing installation and repair, trust Service Pro Plumbing. As your local Vancouver, WA plumbing company, we are dedicated to the safety and efficiency of your plumbing system. Our expert team will assess your needs and provide cost-effective solutions, delivering quality results you can rely on.

Gallery
Gallery
Gallery
Gallery
Gallery

+11

Response time6 hrs
Response rate100%
103 neighbors recently requested a quote
Avatar for Wrangler Specialty Const
Wrangler Specialty Const
5.0(
4
)
Basement Drainage Channels - Install

Serving Longview, WA and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

Wrangler Specialty Construction is a family-owned residential construction company dedicated to upholding the highest standards of quality, character, and integrity. Our team takes pride in our work and is committed to delivering superior construction solutions. We specialize in concrete, timber projects, framing and roofing, driven by a passion for excellence and customer satisfaction.\nWe're here to build relationships with our customers, communities and to provide our employees with a great place to work.\nWrangler Specialty Construction is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.\nWe look forward to working with you!

Lean-To Shed
Custom Deck
Response time8 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Foundations First Northwest, LLC
Foundations First Northwest, LLC
5.0(
1
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Longview, WA and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

Thousands of NW homeowners have trusted Foundations First Northwest to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! Foundations First is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.

Sump Pump
High Traffic Drain
Trench Drain
Rain Drain Extension
Basecrete

+13

Response time1 day
4 neighbors recently requested a quote
Avatar for J.S. Chappell LLC
J.S. Chappell LLC
New to Angi
Basement Drainage Channels - Install

Serving Longview, WA 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%
Showing 1-10 of 43
Basement Waterproofing questions, answered by experts

In Longview, be cautious if a contractor skips a thorough inspection or offers a one-size-fits-all solution without addressing your home’s unique foundation drainage needs. Quotes lacking detailed breakdowns of labor and materials, or missing clear warranty terms, are warning signs. Also, avoid professionals who can’t provide recent local references or who downplay the importance of moisture control in your specific area.

Helpful?

If your Longview home shows signs like persistent dampness, visible foundation cracks, or musty odors, it likely needs basement waterproofing. Homes with finished basements, those built on clay soil, or properties near rivers are at higher risk for moisture issues. Elevated humidity or past water intrusion also indicate the need for improved moisture control and foundation drainage solutions.

Helpful?

For Longview homes, consider the high water table and clay-heavy soil, which can intensify hydrostatic pressure on foundations. Plan waterproofing projects during drier months to minimize delays. Assess your property’s drainage patterns and proximity to rivers or low-lying areas, as these increase flood risk. Check for any local requirements related to seismic safety when modifying foundation drainage or waterproofing systems.

Helpful?

In Longview, homeowners are increasingly choosing interior French drains paired with sump pumps for robust foundation drainage. Full-perimeter vapor barriers and wall encapsulation are trending, especially for managing persistent moisture. Smart water monitoring systems that send alerts to your phone are gaining popularity. Many also opt for integrated dehumidifiers to maintain optimal humidity, ensuring long-term moisture control and protecting finished basement spaces.

Helpful?

In Longview’s damp climate, keep a moisture meter to monitor humidity, and a wet/dry vacuum for quick water removal. Hydraulic cement is useful for sealing minor cracks, while heavy-duty plastic sheeting can serve as a temporary vapor barrier. Maintain a backup battery for your sump pump and gutter cleaning tools to ensure proper exterior drainage. Mold-resistant sprays and scrub brushes help prevent mildew buildup.

Helpful?

The Longview, WA homeowners’ guide to basement waterproofing services

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