Lead Certified Siding Contractor in Sumas
A top-rated James Hardie siding contractor in Sumas, specializing in the safe replacement of lead-contaminated siding. We provide industry-leading materials and expert guidance to enhance your home’s safety, durability, and curb appeal.
As a James Hardie Elite Preferred® Contractor, Siding Vault is committed to quality craftsmanship and compliance with the highest safety standards.
Contact Us To Learn More!

Proud to be James Hardie's ELITE PREFERRED Contractor
Elite Preferred Contractor status represents the highest level of achievement in James Hardie’s five-tier contractor certification model. It recognizes businesses for their exceptional efficiency, standardized processes, and commitment to excellence.

Lead Certified Siding Contractor in Whatcom County
We are proudly LEAD-SAFE Certified by the State of Washington. For homes built prior to 1978, a lead-certified contractor is required to perform any siding replacement or renovation work (even if lead is not detected). If lead-based materials are detected on homes built after 1978, it is mandatory to engage a lead certified contractor, as failure to comply with these regulations may result in penalties and fines.
Your #1 Home Improvement Experts
Sumas's Trusted and Local Lead Certified Siding Contractor.
Siding Vault is a Sumas James Hardie Elite Preferred® siding contractor that provides popular siding materials and professional installation. As a Lead-Certified contractor, we strictly adhere to EPA guidelines and Washington State Department of Commerce regulations to ensure safe and compliant siding replacement. Driven by a highly skilled and experienced crew in Sumas, our goal is to provide superior craftsmanship and trusted, professional service to every customer.
Service: Siding Vault is known for their niche siding replacement expertise. Siding Vault is partnered with James Hardie through their Contractor Alliance program, and is a James Hardie Elite Preferred® contractor.
Experience: Our crew is very experienced in both residential and commercial siding installation; with some of our legacy members having over a decade of experience!
Warranties: 30-year limited warranty on Hardie Products. 15-year finish warranty on James Hardie pre-finished products, such as ColorPlus Technology®. Request more information to view our latest warranties on other products.
Reviews: Move forward with zero hesitation, view Siding Vault’s extensive positive review presence online. Give James Hardie a call, and ask about Siding Vault!
Locally Operated: Locally owned and operated, here in Ferndale and Bellingham Washington.
Siding Vault's Asbestos Projects
Executed to industry standards with an outstanding finish.
Let us help you transform your home with innovative siding products that stand the test of time!
Before
After


Your James Hardie Elite Preferred® & Lead Certified Siding Contractor in Sumas.
About Sumas
The evolution of home construction in Sumas, Washington, reflects the area’s transformation from a small agricultural and trade hub into a resilient residential community that continues to adapt to changing environmental and economic conditions. Settled in the late 19th century, Sumas was strategically located along the Canadian border, making it an important center for logging, farming, and cross-border commerce. Early settlers built homes using locally sourced cedar and fir, constructing simple log cabins and timber-framed houses designed to withstand the Pacific Northwest’s wet climate. These early structures featured steep-pitched roofs to shed heavy rainfall, thick wooden walls for insulation, and wood-burning stoves for warmth during the long winters. As the town developed and the railroad brought greater connectivity, home construction evolved to include Craftsman and farmhouse-style homes, incorporating larger windows for natural light, covered porches for outdoor living, and more intricate wood detailing. By the mid-20th century, improvements in building materials and techniques led to the widespread use of plywood sheathing, asphalt shingles, and aluminum siding, which provided homeowners with greater durability and reduced maintenance. Vinyl siding became increasingly popular due to its affordability and ability to resist moisture, an essential feature in Sumas’s rainy climate. However, many homes built before 1978 still contain lead-based paint and siding materials, which pose significant health risks when disturbed during renovations. Lead exposure is particularly hazardous for children, pregnant women, and individuals with compromised immune systems, potentially leading to severe neurological and developmental health issues. Because of these risks, Washington State enforces strict lead removal regulations, and homeowners looking to renovate older properties must work with certified professionals. Siding Vault is fully lead-certified and has extensive experience handling siding replacement projects in Sumas, ensuring safe removal and proper disposal while adhering to state guidelines. In recent years, home construction in Sumas has increasingly focused on sustainability and energy efficiency, incorporating modern materials that enhance home durability and reduce environmental impact. Fiber cement siding, particularly James Hardie products, has become a preferred choice due to its resistance to moisture, fire, and pests, making it ideal for the area’s climate. Additionally, modern insulation techniques such as spray foam, rigid foam board, and high-performance batt insulation have significantly improved energy efficiency, reducing heating and cooling costs while increasing indoor comfort. Builders now integrate rainscreen systems and vapor barriers to prevent moisture-related issues such as mold growth and wood rot, ensuring homes remain structurally sound despite the frequent rain and occasional flooding risks associated with the Nooksack River. Energy-efficient windows, such as Simonton’s Daylight Max, provide superior insulation while maximizing natural light, helping homeowners enjoy their surroundings while maintaining comfortable indoor temperatures. Sumas remains a desirable place to live due to its small-town charm, affordability compared to larger nearby cities, and close proximity to both the Canadian border and outdoor recreational areas. Unlike Bellingham or Lynden, Sumas offers a quieter, rural atmosphere with larger properties and a strong agricultural presence, making it an appealing location for families, retirees, and those seeking a more relaxed lifestyle. One unique aspect of Sumas is its history as a key border town, which has influenced both its economy and community culture. However, its location also presents challenges, such as the risk of flooding from the Nooksack River, which has shaped construction practices and encouraged homeowners to invest in more resilient building materials and energy-efficient upgrades. As the town continues to grow and older homes require updates to meet modern safety and efficiency standards, lead-safe renovations have become an essential service. Siding Vault’s expertise in lead-certified renovations ensures that Sumas homeowners can confidently upgrade their properties while preserving their structural integrity and complying with Washington State laws. The evolution of home construction in Sumas highlights a community that values both its history and its ability to adapt, creating homes that are durable, energy-efficient, and well-suited for the unique environmental and economic conditions of the Pacific Northwest.
Recent Projects

