Premium Window Installation & Replacement Services in Mukilteo, WA

Built for Beauty, Efficiency & Durability

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BBB Accredited Business A+ Rating logo
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Energy Efficiency

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Custom Styles

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Expert Installation

Our Services

At Triple J Windows, we specialize in high-quality window, door, and skylight solutions for homes and businesses across Washington State. Whether you're upgrading your home's energy efficiency or enhancing a commercial property, our expert team delivers craftsmanship and reliability you can count on.

Residential Windows

Bright living room with large windows, beige armchairs with blue cushions, side table with lamp, dining area, and a fireplace in the background.

Skylights

Open skylight with a view of blue sky and clouds through a wooden-framed window

Sliding Glass Doors

Sliding glass door with view of garden, featuring a tree and shrubs, with a fence and building in the background.

Commercial Properties

Modern white apartment building with large windows and balconies; a dark-colored car parked in front.

130+ 5-Star Reviews

What Our Customers Are Saying

"This is the second time that I had Juan and Triple J do some window/glass replacement. Honest, knowledgeable, timely, and amazing work!"

- Tom Baker

"Juan & his team did a wonderful job replacing the glass. No high pressure, worked within my budget!"

- Tracy Metzler

"Juan replaced our windows with remarkable speed and professionalism. Highly recommended!"

- Airmansingh

"Got a bid same day, scheduled for a week later. Fast, polite, and clean work!"

- John-Michael McCreary

"Awesome service. Replaced 3 windows, couldn't be happier. A glass company you can trust!"

- Carla and John Donohue

"Big project with 24 windows - Triple J Windows nailed it! So happy with the results."

- Dan Salzer

"Incredible experience! Friendly, professional, and fantastic installation!"

- Sonia Ngov

"Affordable, high-quality work. Juan replaced 8 panes quickly and professionally!"

- K Elsom

"Tough old house window install — they handled every surprise perfectly. Thank you!"

- Ben Robison

"Replaced 2 windows — great service both times. Highly professional team!"

- Tyler Hintzsche

"Amazing! Great pricing, quick service, trusted team for window installations."

- Michele Garcia

"Installed two new windows flawlessly. Clean, fast, and professional. Highly recommend."

- Jean-Claude “JC” Hauchecorne

"Replaced 9 broken windows for us. Smooth process, very happy with the outcome!"

- Lawrence Johnson

"Professional, courteous, seamless installation. Very happy with the result!"

- mr yo

"Emergency window board-up and replacement. Great service during a tough situation."

- Jenni Monahan

"Replaced foggy old windows when no one else would! Fantastic work by Juan and team."

- Roger Clarke-Johnson

Frequently Asked Questions

We specialize in window installation, window replacement, window repairs, sliding door services, custom window solutions, and commercial window projects throughout King County and Snohomish County.
We proudly serve homeowners and businesses across King County and Snohomish County, Washington.
You can call us at 360-525-3680 or email us at triplejwindowsllc@gmail.com. You can also fill out the form on our website.
Yes! We work closely with you to design and install custom window solutions that match your property’s architecture and needs.
We install and replace bay windows, sliding windows, picture windows, casement windows, double hung windows, and single hung windows.
Yes, we offer professional sliding door installation, replacement, and repair services to upgrade your home’s functionality and appearance.
Absolutely! We repair cracked glass, replace foggy panes, fix damaged frames, and ensure your windows operate like new.
We focus on precise craftsmanship, quality materials, honest communication, and personalized service for every project.
We typically offer fast turnaround times. Call us at 360-525-3680 or email us to schedule your project.
Yes! We offer free consultations and estimates for all window and door services.

Get a free quote today!