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Fiberglass Door & Window Replacement in Redmond, WA

Are you ready to transform your Redmond home with stunning fiberglass doors and windows? At Signature Window & Door Replacement, we’ve been making homes in the Puget Sound and Greater Seattle area shine since 1999. We’ve been serving this community for over 25 years.

Redmond, WA, replacement windows and doors

Upgrading to fiberglass windows and doors is not just about aesthetics; it’s a smart investment that brings a host of benefits, like energy efficiency that lowers your bills, durability that stands the test of time, and an increase in your home’s value. If you want to elevate your home’s charm while boosting energy efficiency and long-term savings, you’ve come to the right place!

Window Replacement Process

More than 80% of a window installation happens behind the scenes, ensuring a secure and efficient setup that you can rely on for years to come. At Signature Window & Door Replacement, we take pride in making your window replacement experience seamless and stress-free.

Here’s how our installation process works:

  • Selection of premium materials: We help you choose durable, energy-efficient fiberglass windows that enhance your home’s style and comfort.
  • Precision measurement and customization: Once you’ve chosen your windows, our team will take precise measurements to ensure a customized fit.
  • Expert installation: We secure your windows with precision, adding moisture barriers, exterior trim, and caulking for a flawless, long-lasting seal.
  • Final inspection and cleanup: After installation, we conduct a thorough inspection to ensure everything is perfect. We also clean up any debris, leaving your home spotless.
  • Customer satisfaction guarantee: Your satisfaction is our priority. We stand behind our work, ensuring you enjoy the benefits of your new windows for years to come.

Benefits of Fiberglass Windows

So, what’s all the hype about fiberglass windows? Let’s break it down:

  • Superior energy efficiency: Say goodbye to those sky-high energy bills! Fiberglass windows are superstars when it comes to insulation, helping you keep your home cozy all year.
  • Long-lasting durability: Are you tired of windows that can’t stand the test of time? Fiberglass resists warping, fading, and cracking, meaning you’ll enjoy your windows for years to come without worry.
  • Low maintenance: Who has time for constant upkeep? With fiberglass windows, a quick wash with soap and water is all it takes to keep them looking fabulous.
  • Aesthetic value and curb appeal: With an array of styles and finishes, fiberglass windows can turn heads and make your home the talk of the neighborhood.
  • Enhanced home security: Feel safe and sound with windows designed with strong materials that offer excellent protection against break-ins.

Plus, investing in fiberglass windows is not just a treat for your home — it’s a smart move for your wallet. They can significantly boost your home’s value, making it a win-win.

Invest in your home with durable, energy-efficient fiberglass windows. Schedule with us today.

Door Replacement Process

It’s more than just a door — it’s the gateway to your home’s comfort, security, and style. Whether you’re dreaming of an elegant entry door, a durable fiberglass option, classic French doors, sleek sliding patio doors, or timeless wood or steel doors, we’ve got you covered.

Our process includes:

  • Consultation and personalized selection: We’ll help you identify the perfect door for your home, whether it’s an elegant entry door, classic French doors, or sleek sliding patio doors.
  • Quality options for every style: Choose from a wide variety of styles, including arts and crafts, coastal, colonial, Craftsman, and even fun speakeasy styles. We offer smooth fiberglass, textured fiberglass, steel, vinyl, wood clad, and wood doors.
  • Customization to match your vision: We offer a range of customization options, including transoms, sidelights, grid and divided lite options, casings, inset glass, low-profile frames, ironworks, and invisible screens.
  • High-quality materials and manufacturers: We partner with top manufacturers like ProVia, Marvin Window & Doors, Infinity by Marvin, Integrity by Marvin, and others, ensuring you get the best quality for your needs.
  • Variety of finishes and hardware options: From oil-rubbed bronze to nickel, brass, and more, we have a wide range of hardware finishes to match your aesthetic.
  • Expert installation: Our skilled craftsmen ensure precise installation, making sure your new door fits perfectly and performs beautifully for years to come.

Choose Signature Window & Door Replacement

Homeowners in Redmond, Washington, can count on Signature Window & Door Replacement for top-notch service backed by decades of experience. Our expert team is dedicated to providing excellent customer care while using high-quality fiberglass materials for lasting performance. Investing in fiberglass doors and windows boosts your home’s curb appeal and adds value, improving energy efficiency and overall comfort for years to come.

Contact Signature Window & Door Replacement today for a consultation.

Window and Door Replacement FAQs

  • Cut back the existing siding to the desired exterior trim width.
  • Remove the existing window.
  • Cut back the interior liner to the correct depth so the window isn’t floating in space without the correct support.
  • Caulk the backside of the nail fin to ensure a proper air and moisture seal.

You can learn more about the process here.

  • Fiberglass
  • Vinyl
  • Wood clad
  • Wood
  • Steel

Fiberglass windows look better and last longer than vinyl windows. Additionally, fiberglass windows are eight times stronger than vinyl and can easily be molded into any shape or size.

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4.9
Based on 184 reviews
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rachel mf profile picture
rachel mf
17:04 06 Mar 26
I cannot praise Signature highly enough. We hired them in 2012 to replace all of our windows and two sliding doors - the work was excellent and we love our Simonton windows. We just hired them again to rebuild our two-story entryway and install a Perva door and new windows. From the very thorough conversations with our salesperson, Vitaliy, to the scheduling with the office staff, to the actual installation - everything is as professional and high quality as you can find. We gathered quotes from three other companies but none of them went to any effort to truly lay out how the job would be accomplished. Photos show the old & new interior side, and the new exterior. Still needs painting but we're so happy!
G Zenkin profile picture
G Zenkin
04:19 04 Mar 26
After an extensive vetting process and comparing multiple options, I confidently chose Signature Windows & Doors for my home, and they absolutely delivered. The Marvin brand windows they installed are beautiful and of incredibly high quality—the craftsmanship speaks for itself. Beyond the great product, the installation process was truly exceptional. The crew was professional, precise, and made the entire project seamless from start to finish. I highly recommend them to anyone looking for top-tier windows and flawless execution. I had a fantastic experience with Signature Windows & Doors.
Michele V profile picture
Michele V
00:13 26 Feb 26
We called our project "The Window From Hell." It was a HUGE trapezoid window up high in a 2-story living room, and it needed to be replaced after its seal failed. I got bids, and was the most impressed with Danny L at Signature Windows. We had a tight deadline because the home was going on the market and access to the window, especially in the rain, was really challenging. Meeting the deadline, and the safety of the installers, were non-negotiable. Danny came out the very next day to measure the Window From Hell and, not only did he give me the best price, but his company was the only one that had all the scaffolding equipment readily available at no extra charge. The window arrived sooner than expected, and installation was quickly scheduled to meet the deadline. Then we hit a snag: some epic rain made the cedar roof too slippery for safe conditions. Brent and his crew of expert (and very brave) installers rigged up a safe way to haul this brand-new Mother of ALL Windows up to the second floor and install it using very long ladders, secure scaffolding, and harnesses. I think we had 4 or 5 installers for this job. It took all day to get the old Window From Hell out and the new Mother of All Windows installed. But what a job! Perfect caulk lines, perfect cleaning of the glass, perfect clean-up of the job site, indoors and out. Job done ON TIME, SAFELY, and at an excellent price. If Signature can handle my Window From Hell, I am very confident they can install ordinary double-hung windows that exceed your expectations for quality, price, timeliness, and workmanship. I highly recommend Signature Windows.
Robert Horn profile picture
Robert Horn
01:35 19 Feb 26
I highly recommend Signature. Windows look great, we are really happy with our installers too, they picked up everything each day and were real craftsmen, they took pride in the work they were doing for us.
Leanne Bough profile picture
Leanne Bough
23:41 12 Feb 26
Signature windows was wonderful to work with from the sale through the installation.
Dana B profile picture
Dana B
18:02 25 Nov 25
Everything from the initial consultation, regular updates on my order and installation was wonderful. The most recent installation was the third time I've had Signature replace old windows and I've been so pleased every time. They took the time to explain which windows needed replacement and provided options without any sales pressure. It's so nice to work with a company that believes in great customer service and offers quality products.
Amy Dahlin profile picture
Amy Dahlin
16:47 23 Oct 25
We have chosen to work with Danny and his team at Signature Window & Door twice now. We love the quality of the windows and the help they provide in the design process all the way to the finished installation. We put in a 15' folding door at our last home. It was a showstopper! Highly recommend them to bring your home back to life with beautiful windows that are built to last!
Pam Moser profile picture
Pam Moser
22:08 18 Feb 25
We bought a house that needed all new windows & sliding glass doors replaced. So we did our research and visited window replacement companies to see & touch different window & screen types. We decided to work with Signature Window primarily based on customer service as we received during the research & planning process with Office personnel (friendly, helpful, responsive) & Sales team (product knowledge, design assistance, open & honest).

1st Project (Aug 24) - 8 windows & 1 Sliding Door
2nd Project (Feb 25) - 1 ceiling to floor large window & 2 windows
Product of windows & door was excellent - we are extremely happy.

The customer service experience was superb. We worked with Sales Rep, Scheduler, Window Measuring Rep & Installers - all were friendly, open & honest, communicative, assisted with design & product knowledgeable. Installers did an awesome job with project cleanliness & kept busy all day long.

We are extremely satisfied with our overall experience with window replacement with Signature Windows 🥰
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What To Expect Discover The Signature Difference
Local & Family-Owned and Operated Since 1999
Lifetime Product Warranty
Lifetime installation Warranty
Infinity From Marvin® regional dealer
ProVia fiberglass and steel door partner
100% satisfaction guarantee
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Signature Window & Door Replacement
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