Waterproofing Solutions in Sequim, Port Angeles & Port Townsend, Washington

Defending Crawl Spaces Against Persistent Water Intrusion


At Square 1 Venture Group LLC, we understand the unique challenges homeowners face in Sequim, Port Angeles & Port Townsend, Washington, when it comes to crawl space moisture and water intrusion. With 35 years of experience in crawl space solutions, we provide reliable and long-lasting waterproofing services designed to protect your home’s foundation and improve indoor air quality. Our local expertise allows us to address these issues with solutions tailored to the Pacific Northwest’s climate, including heavy rainfall, high humidity, and coastal conditions.

GET A QUOTE

HOURS OF OPERATION

Mon - Fri
-
Saturday
-
Sunday
Closed

By integrating advanced waterproofing systems and preventive techniques, we help homeowners safeguard their properties while enhancing overall comfort. From exterior drainage installation to interior vapor barriers, our services prevent water from compromising your home’s integrity. We combine industry-leading products with proven methods to ensure durability and effectiveness, providing peace of mind for property owners across the region.

Our Waterproofing Services

Crawl Space Encapsulation

We provide full crawl space encapsulation using durable vapor barriers and sealants. This process blocks moisture, prevents mold growth, and improves energy efficiency. By controlling humidity and creating a sealed environment, we ensure your crawl space remains protected from water damage year-round, offering long-term safety and structural stability for your home.

Interior Drainage Systems

Our team installs interior drainage systems to redirect water away from the foundation. These systems collect and channel excess water, preventing pooling and seepage. Designed to work with sump pumps, interior drainage solutions help maintain a dry crawl space, reducing the risk of structural damage and protecting your home from costly repairs caused by water intrusion.

Sump Pump Installation and Maintenance

We offer professional sump pump installation and ongoing maintenance to manage water accumulation effectively. Sump pumps quickly remove water from low-lying areas, preventing flooding in your crawl space. Regular maintenance ensures the system operates efficiently, providing reliable protection during heavy rainfall or seasonal water infiltration common in the Sequim, Port Angeles, & Port Townsend region.

Exterior Waterproofing Solutions

Our exterior waterproofing services include foundation sealing, proper grading, and drainage improvements. By preventing water from reaching your foundation, we reduce the risk of leaks, erosion, and structural compromise. Exterior solutions work in tandem with interior systems to provide comprehensive protection, preserving the integrity of your home’s foundation against the frequent rainfall and moisture conditions in the local area.

Strengthening Foundations Through Expert Waterproofing Systems

Choosing Square 1 Venture Group LLC for waterproofing services ensures your crawl space is secure, dry, and structurally sound across Sequim, Port Angeles & Port Townsend, Washington. Our 35 years of experience allow us to deliver solutions tailored to the local climate and soil conditions, addressing both immediate water concerns and long-term prevention strategies. By investing in our services, you protect your home from moisture-related damage, improve indoor air quality, and enhance energy efficiency. Investing in professional waterproofing today can save significant repair costs tomorrow. Let us help you maintain a healthy, dry, and resilient home with expert solutions designed for the unique conditions of the region.

client testimonials

Very professional service, reliable and arrives on time. Takes the time to educate you about the job and makes recommendations for fixes but does not hard sell. Highly recommend!

Mary C.

Square 1 Venture is a business that everyone should use. They go the extra mile and the work was done professionally. My driveway is cleaner now than it has ever been. Amazing service received.Thank you

Susan B.

Jon did a brilliant job of powerwashing our roof, house and drive. Excellent work, responsive and professional. A+

Martin S.

Highly professional and excellent communication on all aspects of the project. I really appreciate the level of service. They really do go above and beyond. I look forward to working with Square 1 on future projects.

Dave L.

Very prompt response with providing estimate, scheduling and service. Great attention to detail as well. My house and gutters haven't been this clean in a long time!

Edith G.

Very professional service, reliable and arrives on time. Takes the time to educate you about the job and makes recommendations for fixes but does not hard sell. Highly recommend!

Mary C.

Square 1 Venture is a business that everyone should use. They go the extra mile and the work was done professionally. My driveway is cleaner now than it has ever been. Amazing service received.Thank you

Susan B.

Very professional service, reliable and arrives on time. Takes the time to educate you about the job and makes recommendations for fixes but does not hard sell. Highly recommend!

Mary C.

Jon is very professional and responsive..he patched and painted the inside of our house. He worked well with us and really made the whole process painless! He is a great person and would highly recommend him for any painting job! Thank you Jon!

Britt B.

Square 1 Venture is a business that everyone should use. They go the extra mile and the work was done professionally. My driveway is cleaner now than it has ever been. Amazing service received.Thank you

Susan B.

Jon did a brilliant job of powerwashing our roof, house and drive. Excellent work, responsive and professional. A+

Martin S.

Highly professional and excellent communication on all aspects of the project. I really appreciate the level of service. They really do go above and beyond. I look forward to working with Square 1 on future projects.

Dave L.

Very prompt response with providing estimate, scheduling and service. Great attention to detail as well. My house and gutters haven't been this clean in a long time!

Edith G.

Very professional service, reliable and arrives on time. Takes the time to educate you about the job and makes recommendations for fixes but does not hard sell. Highly recommend!

Mary C.