For nearly three decades, Emerald City Energy has helped thousands of homeowners across greater Seattle upgrade their homes with energy-efficient windows, doors, composite decks, and more. We're the sole authorized installation partner of McLendon Hardware — proudly serving both Emerald City Energy and McLendon Home Services customers.
Emerald City Energy was founded in 1997 with a straightforward mission: bring honest, high-quality home improvement to Puget Sound homeowners. From day one, we became authorized dealers for Milgard and Andersen — two of the most trusted names in windows and doors — and that partnership has been the foundation of our business ever since.
In 2018, we expanded our Bothell presence by acquiring Intermountain Glass, a well-established local glazier whose original owner decided to retire. That acquisition brought new expertise, an established customer base, and deepened roots in the Eastside community we already served.
We're also proud to be the sole authorized installation partner of McLendon Hardware, one of the Pacific Northwest's most iconic home improvement retailers. Operating as McLendon Home Services, our team handles professional installation for McLendon customers across the region — covering windows, doors, decks, and more with the same certified crews and warranty-backed workmanship we bring to every Emerald City Energy project.
Today, with three showrooms and over 600 five-star reviews, we're proud to be the neighbor you trust with your home.
The principles that guide every quote, every install, and every home we touch across the Puget Sound.
We give you straight answers and fair quotes — no pushy sales tactics, no hidden fees. Most projects are quoted within 24 hours.
Our certified installers ensure precise fit and long-term performance on every job — so your windows and doors look great and perform for decades.
We're authorized dealers for the Pacific Northwest's leading window, door, and deck brands — so you get manufacturer warranties backed by our installation guarantee.
We know the Puget Sound. Every product we recommend is tested for Washington's wet winters, temperature swings, and coastal moisture.
From your first call to project completion, our team keeps you in the loop. Track your project and get updates every step of the way.
Don't let budget hold back your project. We offer $0 down, 0% interest financing options so you can upgrade your home now and pay over time.
From a small local window company to a multi-location Puget Sound institution, here's how Emerald City Energy grew into the business it is today.
Emerald City Energy opens in the Puget Sound as an authorized dealer for Milgard and Andersen Windows — two partnerships we've maintained for the entire life of the company.
Growing demand leads us to expand into door installation and composite decking. We add Simonton, Trex, Timbertech, and Codel Doors to our portfolio, rounding out a complete home exterior offering.
When the original owner of Intermountain Glass in Bothell decided to retire, we acquired the business — bringing their expertise, loyal customer base, and decades of glazing experience into the Emerald City Energy family.
Emerald City Energy is selected as the exclusive installation partner of McLendon Hardware, one of the Pacific Northwest's most beloved home improvement retailers. We now operate as McLendon Home Services, serving McLendon customers across the region.
Nearly 30 years in, we remain proudly local — with three Puget Sound showrooms, over 600 five-star reviews, and a team of certified installers who stand behind every project we complete.
We carry only products that meet our standards for energy efficiency, durability, and performance in the Pacific Northwest's climate. Every brand we sell comes with manufacturer warranties that we stand behind with our own installation guarantee.
From a single window replacement to a full deck-and-patio-cover combination project, our team handles it all — with one point of contact from quote to completion.
McLendon Hardware has been a Pacific Northwest institution for generations — a family-owned retailer that generations of Puget Sound homeowners have trusted for hardware, building materials, and home improvement products. We're honored to be their exclusive installation partner.
Operating as McLendon Home Services, our certified installation teams handle professional installation of windows, doors, decks, patio covers, plumbing, and more for McLendon customers throughout the Puget Sound. It's the same expert crews, the same warranty-backed workmanship, and the same 5-star commitment — just under the McLendon Home Services banner.
If you've purchased a product at McLendon Hardware and need professional installation, you're in the right hands. Visit McLendon Home Services to learn more or get started.
Don't take our word for it — see what thousands of Puget Sound homeowners say about working with Emerald City Energy.
Three Puget Sound locations where you can see, touch, and compare products before you buy.
Open M–F
Open M–F
By Appointment
Showroom hours vary by location.
We accept Visa, Mastercard, Discover, American Express, Checks, and Cash. We offer financing options on new windows and doors.
Fully licensed and bonded in Washington State, with manufacturer-backed warranties on every product we install.
Get a free, no-pressure estimate from the Puget Sound's most trusted window and door team. Most projects quoted within 24 hours.