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Basement Waterproofing in Sequim, WA

Review Logo 4.8 (508)

In Sequim, the unique combination of sandy and silty soils, along with the region's annual precipitation of about 25 inches, can lead to basement water issues such as leaks, dampness, and mold. These problems, if left unaddressed, can result in significant structural damage to your home. Matvey Foundation Repair offers comprehensive basement waterproofing solutions, including interior drains, sump pumps, dehumidifiers, and wall vapor barriers, to keep your basement dry and secure.

In Sequim, Washington, Groundworks has combined the expertise of Rainy Day Crawl Space & Basement and Matvey Foundation Repair to provide top-tier foundation repair and waterproofing services. With Rainy Day's specialization in crawl space and basement solutions paired with Matvey's foundation repair capabilities, we strive to deliver exceptional service and cutting-edge solutions. Under the Groundworks name, we are dedicated to ensuring safe and stable home environments throughout Sequim. Schedule your free inspection with us today.

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Groundworks is Sequim's Basement Waterproofing Expert

Serving Homeowners for over 28 years

Recent Work Completed Near You

8,310 basements waterproofed by the Seattle South branch

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Why your neighbors trust Groundworks

We've earned 459 five star reviews.

"We have an old house on a hill, which has a lot of underground streams. Over the years the soil under our foundation has destabilized, causing one side of the house to sink. We talked to a lot of foundation contractors, but it was Matvey that really impressed us. Their attention to detail, and proper approaches (including engineering reports, load calculations etc) was fantastic and reassuring. They worked with the city to push through permitting, and kept us well updated on that process. The solution we needed was metal support piles under the foundation on one side of the house. Marco and Eduardo, the install team, were amazing. Really knowledgeable, friendly and great workers. They did an awesome job of installing the foundation supports, and left the area they were working in cleaner than before they came. Matvey were not the cheapest quote we got - but we felt that their approach was the best, and most thought out. I’d also argue your house foundation isn’t an area to cheap out on :)"

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Our in-house crews are certified and local to your area.

Our work comes with a nationally backed warranty.

Types of Basement Damage in Sequim

Common Causes of your Basement Problems in Sequim

Hydrostatic Pressure

When groundwater accumulates around your foundation, it exerts pressure on basement walls and floors, leading to cracks and water seepage.

Poor Drainage Systems

Inadequate drainage systems fail to divert water away from the foundation, resulting in water accumulation that can compromise structural integrity.

Foundation Cracks

Natural settling or poor construction practices can cause foundation cracks, allowing water to penetrate your basement.

Gutter and Downspout Issues

Improper installation or clogging of gutters and downspouts directs water toward the foundation, exacerbating water infiltration problems.

High Water Table

During heavy rainfall or snowmelt, a high water table exerts pressure against basement walls, causing water to seep through cracks or joints.

Plumbing Leaks

Leaks from plumbing systems can saturate the soil around the foundation, leading to erosion and weakening of the structure.

Understanding these common causes can help you take proactive steps to protect your basement from water damage and maintain the integrity of your home.

Basement Waterproofing Solutions We Provide For You in Sequim

Control Wall Moisture

Control Wall Moisture Image

What We Do

  • Inspect basement for vulnerabilities
  • Take custom measurements
  • Provide lasting moisture solutions

What We Use

Vapor Barrier 3D Image Vapor Barrier Learn More

Control Groundwater Seepage

Control Groundwater Seepage Image

What We Do

  • Identify leakage sources
  • Consider your home's unique needs
  • Install a reliable drainage system

What We Use

Sump Pump 3D Image Sump Pump Learn More
Drain System 3D Image Drain System Learn More
FreezeGuard 3D Image FreezeGuard Learn More

Control the Environment

Control the Environment Image

What We Do

  • Recognize ventilation insufficiences
  • Offer options for moisture control
  • Regulate humidity levels effectively

What We Use

Dehumidifier 3D Image Dehumidifier Learn More

Our Other Services in Sequim

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Our Groundworks' Sequim Office Serves You

Our Address

18915 16th Ave S, SeaTac, Washington 98188

Contact Us

(855) 976-0804

About Us

Meet our Sequim team, see our
service area, and get financing details
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Proudly Serving Sequim and Surrounding Areas

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Trust the experts at Groundworks

How it works

Straightforward and simple process

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Schedule an
inspection

Upon arrival, our Inspector will introduce themselves and chat with you about the problems you're experiencing. Based on the information you provide them, they'll then create a plan of action to examine your home inside and out.

Receive a detailed repair plan and quote icon

Receive a detailed
repair plan and quote

Once the inspection is complete, the Inspector will sit with you and present their findings. And because we provide same-day estimates, you'll have all the cost and financing information you need to make a decision right away.

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Get the work done
when you're ready

When you're ready to move forward with repairs, we'll help you choose an installation date that works for your schedule, and notify our Installation team immediately of the upcoming work.