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Avatar for Groundworks
Groundworks
4.6(
915
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Longview, WA 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

8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.2(
72
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Longview, WA and surrounding areas

Approved (Corporate)

In business since 1974

Free estimates

Warranties offered

"David and Cody from John's Waterproofing went straight to work; they quickly found the problem, showed me the problem, discussed what would have to be done to fix the problem, fixed the problem, then thoroughly cleaned up. Very nice people to work with, from the schedulers through the technicians."
New Home Encapsulation
SilverGlo Insulation
CleanSpace
SaniDry Dehumidifier
Puddling in Basement

+7

Response time11 hrs
Response rate94%
38 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

"This crew was awesome. As a company, they refuse to cut corners and the project turned out beautifully, even beyond my expectations. Affordable, efficient and tidy; my kind of contractor. I recommend this company without hesitation."
Response time2 days
11 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Legacy Plumbing and Excavation, LLC
Legacy Plumbing and Excavation, LLC
4.5(
82
)
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%
820 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

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%
106 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

"I needed a concrete foundation for a metal building I got installed on my property. The Wrangler Specialty Const did outstanding job building the foundation true to the specifications provided. They completed the project on time and for very reasonable price."
Lean-To Shed
Custom Deck
Response time8 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for John's Waterproofing
John's Waterproofing
4.3(
252
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Longview, WA and surrounding areas

In business since 1974

Free estimates

Warranties offered

"I was glad John's Waterproofing was recommended to me to resolve the serious water problem in my large crawl space. With Jake's Design and Jeremy's remarkable crew, who were able to efficiently perform the many tasks needed to fix the problem, I now have a dry, clean and healthier crawl space under my home. Thanks to John's superb 5 star Company! Virginia Rossman"
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%
20 neighbors recently requested a quote
Avatar for TerraFirma Foundation Systems
TerraFirma Foundation Systems
4.4(
238
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Longview, WA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"I used TerraFirma to install a sump pump in my leaking basement. The team that worked on installation were great to work with. I was very pleased with the quality of work, the communication throughout the process, and their respect for my home."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time7 hrs
Response rate100%
Recommended by89%of homeowners
Showing 1-10 of 45
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’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?

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?

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.