It's not just the products — it's who installs them. Our crews are AAMA Certified, EPA Lead-Safe Certified, Andersen Certified, and Milgard Certified installers, backed by nearly three decades of work across the Puget Sound and 600+ five-star reviews. See exactly how we install below.
Anyone can sell a window — far fewer are trained and certified to install it correctly. Our installation teams carry the certifications that protect your home, your warranty, and your investment.
Trained to the American Architectural Manufacturers Association's installation standards — the industry benchmark for proper fenestration installation.
AAMA Certified InstallerEPA Lead-Safe Certified for safe work on pre-1978 homes — protecting your family from lead paint hazards during every installation.
EPA Lead-Safe CertifiedFactory-trained and certified by Andersen Windows & Doors to install their products to manufacturer specification — keeping your warranty intact.
Andersen Certified InstallerCertified Milgard installers, ensuring every window and door is fitted to earn Milgard's full Lifetime Warranty coverage.
Milgard Certified InstallerSee the installation methods we use — and how the right one protects your investment for the life of your home.
Our most durable installation — the method you generally find in new-construction homes. So thorough it comes with a lifetime warranty that's transferable to all subsequent homeowners for the life of the home.
A durable install that includes a nail flange and new trim on the house. Adding trim not only improves performance, it can add new dimension and style to some older homes — backed by a lifetime warranty for as long as you own your home.
Our least-invasive method — no cuts to the siding and no new trim. This technique lets your home keep its classic style and charm. Long-lasting, though less durable than our other installs.
This is about our installation workmanship — the part that's only as good as the crew behind it. Our best installs carry a Lifetime Plus Workmanship Warranty that transfers to every future homeowner for the life of the home, not just once. Here's how that compares to the big national chains.
| Workmanship Warranty | Emerald City EnergyLifetime Plus Workmanship | Renewal by AndersenInstallation Warranty | Window NationLabor Warranty |
|---|---|---|---|
| Workmanship & installation coverage | Lifetime — for the life of your home | 2 years from install | 1–5 years (by contract tier) |
| Transferable to a future homeowner | Yes | One transfer only | One transfer only |
| Transfers to all subsequent owners | Yes — unlimited transfers | No | No |
| Installed by a certified, local crew | Local PNW crews since 1997 | National chain | National chain |
| Who stands behind it | Your local Emerald City Energy teamSame crew, every time | Corporate / dealer network | Corporate / dealer network |
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This comparison covers installation workmanship warranties only (not manufacturer product/glass warranties). Competitor terms shown are based on publicly available information as of 2026 — Renewal by Andersen warrants installation for 2 years, and Window Nation labor coverage ranges from 1 to 5 years depending on the contract tier. Terms may change; please confirm directly with each provider. Emerald City Energy workmanship coverage depends on the installation method selected — ask your estimator for full details.
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.
The things Puget Sound homeowners most often want to know before choosing an installer.
Don't take our word for it — see what thousands of Puget Sound homeowners say about working with Emerald City Energy.
Get a free, no-pressure estimate from the Puget Sound's most trusted window and door team. Most projects quoted within 24 hours.