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Window Dealer and Contractor

Window Dealer and Contractor Serving Whatcom, Skagit, Island, and San Juan Counties

A Recognized Window and Door Company

Window Vault rated 4.9/5

based on 126 reviews.

Why Choose Window Vault?

Window Dealer of Leading Window Brands

Lead-Safe Certified by WA State

Proud Partner of Hover® 3D Exterior Design

Specialized Window Replacement Contractor

Only Name Brand Windows, Trim, & WRB Products 

Zero Warranty Claims – Done Right the First Time

Experts in Rescuing Abandoned or Botched Jobs

5-Star Rated Company by Real Customers

We Support Local – Sponsorships and Charity Work 

Proud to be James Hardie's ELITE® Contractor

Elite 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.

Window Vault's Recent Projects

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James Hardie® Siding

Washington's most popular siding. Voted America's #1 return on investment for many consecutive years.
Siding Options

Fiber Cement Siding

Perfectly engineered for the PNW's climate. James Hardie® is the leading fiber cement siding brand.
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Engineered Wood Siding

Treated wood siding that is designed to mimic the appearance of traditional wood siding.
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Metal Siding

A go-to choice for shops, barndominiums, commercial, industrial, and agricultural structures.
Siding Options

#1 Local Replacement Window Contractor 

We only work with the best of the best. When you do that, you know you’re getting renovation work done to a higher standard. From exterior design experts to electricians and artisan craftsmen, we firmly believe that our people make all of the difference, and we take the time to get the job done to a higher standard. At every step of the way, you’ll find our courtesy, professionalism and skill is evident in our approach.

If you are looking for a Bellingham siding company, don’t hesitate to contact Siding Vault. With a strong portfolio and an impeccable reputation, there’s no better choice for a Bellingham Siding Contractor near me than Siding Vault. Our distinct knowledge of home renovations in the Whatcom and Skagit Counties gives us a competitive edge, not just in terms of pricing, but in the approach we take to ensure that we don’t just meet your expectations — we exceed them. Siding replacement is not only about installing new siding, it’s identifying and properly waterproofing pre-existing siding installation flaws. Let us be your specialized siding contractors.

Siding Vault has built relationships with some of America’s top exterior product brands, such as James Hardie®. Many siding crews are intimidated of installing pre-finished Hardie® products, but Siding Vault has mastered this process. In fact, Siding Vault has had many of their pre-finished projects featured directly on James Hardie’s official Instagram account. Don’t skip out on the benefits of pre-finished siding. We conveniently offer both the standard primed and exterior paint re-side package, as well as our premium pre-finished re-side package.

Many builders in Whatcom and Skagit County did not have a competent siding contractor install their exterior siding. Siding Vault has extensive experience re-siding local homes, primarily in Bellingham and Ferndale. Builders try to cut costs and install primed spruce (white wood), and Siding Vault is here to educate homeowners on why Hardie products will be a better choice for their home. HardiePlank® (commonly referred to as Hardie board), pairs seamlessly with HardieTrim®, as it is part of James Hardie’s engineered product ecosystem. White wood is prone to rot and calls for repairs, sometimes only a few years after replacement. Hardie will not rot, and is priced similarly to white wood. When installed properly, Hardie has proven to outlast their wooden equivalents consistently. Siding Vault is proud to be partnered with James Hardie, and has received the James Hardie Elite Preferred® contractor status. Contact us today to learn more.

Bellingham's Preferred Window Replacement and Installation Company.

Trusted Siding Contractor in Whatcom County & Skagit County

Siding Vault is a recognized name in Whatcom County, with growing demand in Skagit County. Founded in Bellingham, Washington, we’ve quickly become a go-to contractor for homeowners seeking high-quality re-siding services done right the first time.

Bellingham’s natural beauty comes with unpredictable weather—making it essential to have durable, weather-resistant siding that not only protects your home but enhances its curb appeal. When you choose Siding Vault for your Bellingham siding replacement, you benefit from years of hands-on experience, exceptional craftsmanship, and competitive pricing.

We’ve completed a wide variety of siding installations across different home types, which gives us the insight needed to tailor each project to your home’s unique needs. During inspections, we frequently uncover hidden rot or moisture damage, and our team is highly experienced in handling rot repair as part of the siding process.

Every project is approached with the same care and precision we’d expect on our own homes. That’s why Siding Vault is known for top-tier siding replacement in Bellingham, Ferndale, and beyond—delivered by professionals who understand your goals and can guide you through the best siding products for long-term performance.

Best Window Contractors Near Me

Looking for the Best Siding Contractors Near Bellingham?

Siding Vault is your trusted local siding company in Bellingham, specializing exclusively in siding replacement. Our team of niche siding contractors understands the unique demands of the Pacific Northwest and the common installation errors that lead to water intrusion and premature siding failure.

When choosing a Bellingham siding contractor, it’s not just about replacing siding—it’s about resolving underlying issues and preventing future damage. That’s why Siding Vault became a James Hardie Elite Preferred Contractor. This designation requires full training and compliance with James Hardie’s strict installation standards.

To be the best siding company in Bellingham, a contractor must stay current with industry standards, product updates, and installation practices. At Siding Vault, continuous education and precision craftsmanship are at the core of everything we do.

Looking for a Bellingham Window Replacement Contractor?

Window replacement is often performed in tandem with siding replacement—and at Siding Vault, we make the process easy by offering both window ordering and expert installation. Our window replacement installers will guide you through selecting the right products from trusted manufacturers, including Milgard, Ply Gem, Marvin, Andersen, and Anlin Windows.

Siding Vault stands out in the home improvement industry for our specialized approach to window replacement. Backed by a team of seasoned professionals, we’ve mastered the art of waterproofing—ensuring that every installation is protected against air drafts, moisture intrusion, and thermal inefficiencies. This level of precision prevents future leaks and energy loss, while also safeguarding the long-term integrity of your home.

As your local Bellingham window replacement contractor, Siding Vault is committed to delivering not just new windows, but meaningful improvements in comfort, energy efficiency, and visual appeal. When you choose us, you’re choosing a team that treats window replacement as both a science and a craft—resulting in high-performance solutions that elevate your home inside and out.

Commercial and Multi-Family Window Contractor.

Siding Vault specializes in commercial and multi-family replacement siding services. We are widely recognized for our experienced team of multifamily renovation experts, who have refined their waterproofing practices to a superior standard. A true commercial and multi-family siding contractor understands that many of these projects require a third-party building envelope inspection—and our crew knows exactly how to prepare for and pass it.

From permitting to project completion, we provide a seamless experience for property owners, HOAs, and community managers. Our in-depth knowledge of building envelope systems is crucial in preventing premature failure, a common issue in larger structures. That’s why property owners turn to Siding Vault: to ensure every detail is handled with precision and foresight.

Our commitment to durable, weather-resistant siding systems not only enhances the aesthetic value of a building but also strengthens its structural integrity—protecting it for decades to come. Whether you need a condo siding contractor, apartment siding contractor, Multi-family siding contractor, or a commercial siding contractor, Siding Vault is your trusted team of siding professionals. Our clients rely on us for top-tier service designed to extend the lifespan and boost the long-term resilience of their buildings.

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James Hardie Elite Preferred Contractors Near Me

Looking for the best James Hardie siding contractor near Bellingham?

Siding Vault is proud to hold the designation of a James Hardie Elite Contractor—a status awarded to contractors who meet James Hardie’s rigorous standards for installation quality and customer satisfaction.

When you choose our James Hardie siding installation team in Bellingham, you’re not just getting one of the Pacific Northwest’s most trusted siding products—you’re also gaining the assurance that your siding is being installed with the highest level of precision and care by a local, certified expert.

This attention to detail is critical: James Hardie’s product warranty is voided if the siding and trim are not installed according to their specifications. That’s why Siding Vault has completed James Hardie’s full installation training program and is fully certified in their best practices and requirements.

Does My Home Need New Windows?

While minor siding repairs are possible, ongoing issues may signal it’s time to upgrade to a more durable option. Common signs you may need siding replacement include: Fading color, rot or pest damage, bubbling or blistering, cracks, warping, or wavy boards, and loose or missing siding.

If a painter advises against repainting due to poor adhesion, it often means the siding substrate is failing—a strong indicator of aging or improper installation.

Even though siding is marketed to last 30–50 years, we’ve replaced siding on homes as new as 3 years old due to poor workmanship. The lifespan of your siding depends heavily on how well it was installed.

At Siding Vault, we follow James Hardie’s exact installation standards to ensure long-lasting results. Choose your contractor wisely—the right one makes all the difference.

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Commonly Asked Questions

In Northwest Washington’s wet, windy, and coastal climate, the best siding choice is fiber cement — specifically, James Hardie® siding. It’s engineered for the Pacific Northwest’s unique weather conditions and offers unmatched durability, resistance to moisture, and long-term color stability.

Unlike traditional wood or engineered wood products that can swell, rot, or warp in constant rain and humidity, James Hardie® siding is non-combustible, pest-resistant, and dimensionally stable. It’s been consistently rated as America’s #1 return-on-investment siding and remains the clear favorite among homeowners throughout Whatcom and Skagit Counties.

The extreme vast majority of re-sides Siding Vault completes are with James Hardie® products — and for good reason. It’s a giant in the industry, trusted by homeowners, builders, and designers across the country for its proven performance and lasting beauty.

As a James Hardie Elite Preferred Contractor, Siding Vault is trained in Hardie’s exact installation standards — which are required to maintain the full manufacturer warranty. While we also install engineered wood, metal, and specialty materials when appropriate, James Hardie® siding remains the top choice for long-term value and protection in the Pacific Northwest.

For homeowners seeking durability, low maintenance, and enduring curb appeal, James Hardie® fiber cement siding stands unmatched — and Siding Vault is proud to be one of the top certified installers in Washington State.

A typical siding replacement project takes about 1–3 weeks, depending on the size and complexity of your home. This timeframe applies to siding-only projects and includes full removal of existing materials, wall preparation, weather barrier installation, and new siding installation.

A few special circumstances can extend the project closer to the longer end of that range. Homes that require lead-safe renovation practices (RRP compliance), contain asbestos siding, or lack sheathing altogether demand more meticulous preparation and handling. These situations require additional coordination and care to ensure the work is performed safely and in full compliance with state and federal regulations.

In addition, Siding Vault is frequently tasked with replacing windows and doors during siding projects, which can add some time to the overall schedule — though combining these scopes is often the most efficient and cost-effective way to complete the work.

No — homeowners do not need to evacuate their home during siding replacement. The work is performed entirely from the exterior, and our crews take every precaution to minimize disruption to your daily routine. You can safely remain in your home throughout the project.

That said, we do recommend removing any valuable or fragile items from your interior walls, especially in areas where work will be taking place. During siding removal or installation, some vibration may transfer through the framing, and it’s best to secure wall-mounted décor, mirrors, or artwork as a precaution.

Siding Vault’s team works carefully and respectfully around occupied homes, maintaining clean job sites and clear communication from start to finish. Our goal is to make the process as smooth and stress-free as possible — allowing you to remain comfortable and confident while your home is transformed.

Prefinished Hardie® siding does cost more per board than primed, but the total project cost is nearly identical at the time of this post’s creation. Because prefinished siding eliminates the need for exterior painting, homeowners save on labor — making the two options extremely comparable overall.

Prefinished siding, such as the James Hardie Statement Collection, features a factory-applied coating that lasts far longer than standard exterior paint, offering superior color consistency, durability, and long-term protection.

Some contractors discourage homeowners from choosing prefinished siding — but it’s typically for selfish reasons, not because it’s what’s best for the customer. Let us explain: prefinished Hardie materials can’t simply be sourced off the shelf at a local Home Depot or supply store. They must be ordered through authorized distributors within the James Hardie product ecosystem. This naturally cuts out contractors who aren’t familiar with Hardie’s ordering process or don’t have established supplier relationships, which often leads them to steer homeowners away from prefinished options altogether.

Another reason for this discouragement is that many companies can’t secure negotiated pricing as low as Siding Vault, due to the large volume of Hardie materials we order each year. This purchasing advantage allows us to offer premium prefinished siding at a cost that’s remarkably close to primed siding plus paint, giving our customers better value without compromise.

It’s certainly not due to performance — prefinished siding is statistically a better product. While it takes slightly more time to install, that’s no challenge for an experienced siding company like Siding Vault, whose crews are fully trained to handle these premium materials with precision.

We generally recommend prefinished siding for full re-sides, as it delivers a durable, low-maintenance finish right from installation. For partial re-sides, primed siding may be the better choice due to the limited color options available in prefinished products.

If the cost is comparable and you’re happy with the available colors, we highly recommend the prefinished route. It offers the best long-term value — and whichever option you choose, Siding Vault will take care of you every step of the way.

Hidden rot is common in the Pacific Northwest, but the vast majority of our customers require only minor rot repair, which we complete at no additional cost. In most cases, a typical home needs 0–4 sheets of sheathing replaced during re-siding — a small enough scope that we include it for free rather than inconvienience homeowners with extra charges.

We’ve seen companies use rot repair as an excuse to add hidden costs at the end of a project. Siding Vault does not engage in those practices, nor do we want customers to feel pressured to count each replaced sheet as an “honesty audit.” The solution is simple: we include minor rot repair for free, based on the statistically low frequency of significant sheathing replacement needed over the many years of re-sides we’ve completed.

Only in rare situations — such as when a home shows extensive, visible rot or water intrusion during the initial consultation, or lacks sheathing entirely — do we include a line-item charge for rot repair. In those cases, the cost is clearly listed in your initial bid, ensuring a transparent, fixed-price estimate with no surprises later.

Our inspection process is thorough. During your consultation, we check for soft spots, moisture damage, and structural weakness. If we uncover minor hidden rot after siding removal, our crew repairs it immediately and documents the work with before-and-after photos — all at no charge.

This approach keeps your project predictable, protects your budget, and maintains your trust. It’s rare that we encounter rot severe enough to fall outside our free repair range, but when we do, we address it honestly and upfront. Siding Vault’s goal is to deliver a flat-rate, worry-free experience. Siding replacement is one of the largest renovation projects most homeowners undertake, and we’ve found that offering flat-rate bids helps relieve stress — even if it occasionally reduces our bottom line. Our inspectors are experienced enough to make accurate judgments before work begins, and our years of data confirm that severe rot cases remain statistically rare across the region — a sacrifice Siding Vault is willing to make to avoid inconveniencing our customers and to relieve stress during such an important renovation investment.

Yes — Siding Vault is proud to be a James Hardie® Elite Contractor, the highest level of certification awarded by James Hardie. This status is earned, not bought, and reflects our proven commitment to installation quality, customer satisfaction, and long-term reliability.

James Hardie® is the manufacturer of the #1 siding brand in Washington State and across America, making it essential that our team is trained in their exact installation requirements. These standards are required to maintain the full manufacturer warranty, ensuring your siding system performs exactly as designed for decades to come.

Siding Vault has direct relationships with local James Hardie technical representatives, giving us access to the latest updates, field guidance, trainings, and best practices — an advantage most contractors don’t have.

You can also find Siding Vault listed directly on the official James Hardie website as a verified Elite Contractor serving Whatcom, Skagit, and San Juan Counties.

Yes — if your home was built before 1978, federal and Washington State law require that any contractor performing renovation or siding replacement be Lead-Safe Certified. These regulations exist because many homes built prior to 1978 used lead-based paint, which can become hazardous when disturbed during construction.

Siding Vault is a Washington State Lead-Safe Certified Firm (R24-0173), meaning our team is fully trained to test, contain, and safely handle lead-containing materials in compliance with the EPA Renovation, Repair, and Painting (RRP) Rule. Even if your home was built after 1978, testing is sometimes necessary — if lead-based paint is discovered, the same safety protocols still apply.

Hiring a certified firm protects both your household and your project. Non-certified contractors can expose occupants to lead dust and may leave you liable for fines or violations if work is performed without proper documentation.

Siding Vault performs lead testing free of charge during your consultation, ensuring your project meets all local and federal safety standards while maintaining a clean and compliant job site.

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