New Windows Built to Last—Designed for the Pacific Northwest
At Signature Window & Door Replacement, we specialize in reliable, long-lasting replacement windows tailored to the unique climate and character of homes in the Puget Sound and Greater Seattle area.
Whether you’re upgrading your forever home or renovating a modest bungalow, we’re here to help you find the right window solution—at the right price—without the pressure.
We believe every homeowner deserves top-tier products and craftsmanship, and we work with a wide range of budgets to make that possible.
Call now to request a free window installation consultation with our expert team.
Why We Recommend Infinity from Marvin
Most window companies lead with vinyl. We don’t—because we’ve seen the difference firsthand.
Signature is the regional dealer for Infinity from Marvin Regional Dealer, one of the market’s most durable, energy-efficient, and attractive window systems.
Made from Ultrex® fiberglass, Infinity windows are 8 times stronger than vinyl and built to perform through decades of wet, windy Seattle winters.
Benefits of Infinity Fiberglass Windows
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Engineered for the Pacific Northwest’s climate
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Resists warping, swelling, and rotting
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Exceptional thermal performance and energy savings
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Sleek, modern frames with more visible glass area
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Custom colors, finishes, and grille patterns
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Backed by a limited lifetime warranty
Homeowners throughout Seattle, Bellevue, Tacoma, and beyond choose Infinity because it offers long-term peace of mind—without sacrificing style.
“Infinity from Marvin is the window we trust in our own homes—and it’s the one we recommend for yours.”
Replacement Windows to Fit Every Need
We understand that every home—and every budget—is different. While Infinity fiberglass is our top recommendation for long-term value, we also offer the following:
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Vinyl windows are a smart, cost-effective choice for rental properties, investment homes, or matching previous vinyl installs.
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Wood and wood-clad windows are perfect for traditional or historic homes.
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Specialty windows and modified window openings require custom configurations, including bay, bow, oversized, or architectural shapes.
Our team will help you compare all your options and find a solution that fits your goals without overselling or pushing unnecessary upgrades.
Expert Installation That Sets Us Apart
A great window is only as good as its installation—and this is where we truly shine.
We don’t outsource our work to the lowest bidder. Our installation crews are highly trained and paid above the industry average, and many of them have been with us for over a decade.
They treat your home with respect, communicate clearly, and get the job done right.
What Makes Signature’s Installation Different
Our installation process ensures we deliver premier results. You can expect the following:
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Clean, detail-focused craftsmanship
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Polite, professional crews who care
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Strong job site supervision and communication
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No shortcuts or rushed installs
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100% Lifetime Installation Warranty on all jobs
We stand behind our work for life in an industry where most companies offer one—to five-year labor warranties. This is one of the biggest reasons customers refer us to friends and come back to us for future projects.
The Signature Process
We make the window replacement process simple, transparent, and stress-free.
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Schedule your free consultation: One of our experienced Design consultants will visit your home, assess your current windows, and discuss options tailored to your space and budget.
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Receive a clear, pressure-free quote: We don’t use pushy tactics. You’ll receive a detailed proposal outlining product options, timelines, and pricing—with no surprises.
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Professional installation: Our installers show up on time, clean up thoroughly, and do things the right way the first time.
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Ongoing support: We’re here long after your project wraps up—with lifetime installation coverage and responsive service.
Why Homeowners Trust Signature
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Locally owned & family-operated since 1999
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Over 25 years of experience in window and door replacement
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Seattle-area dealer for Infinity from Marvin
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One of the few companies offering a 100% Lifetime Installation Warranty
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Thousands of successful installs across King, Pierce, and Snohomish Counties
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Top-rated on Google, Yelp, and Angi
Frequently Asked Questions
Is fiberglass better than vinyl windows?
Yes. Fiberglass is stronger, more weather-resistant, and more dimensionally stable than vinyl. It lasts longer and requires less maintenance, especially in the wet Pacific Northwest climate.
Are Infinity windows more expensive than vinyl?
Typically, yes—but they also last significantly longer and require fewer repairs or replacements over time, making them a smarter investment in the long run.
Can you work within my budget?
Absolutely. During your consultation, we’ll discuss all options and find a solution that is appropriate for your home, timeline, and financial goals.
Do you offer financing?
Yes. We offer flexible financing plans to help make your window project affordable and stress-free.>
Ready to Upgrade Your Windows?
Whether you’re just getting started or ready to move forward, we’re here to help. Our team combines top-tier products with unmatched installation and service. Let’s talk about what’s right for your home.
Request a free window consultation or call us to get started today.
