Serving Mountlake Terrace & the greater Puget Sound since 1997 — rated 4.9 ★ from 600+ homeowners
Windows · Doors · Decks · Patio Covers (425) 228-1792

Windows, Doors & Decks in Mountlake Terrace, WA

Replacement windows, entry and patio doors, and composite decks for Mountlake Terrace homeowners, from a local team that has served Snohomish County since 1997.

  • 1997Established
  • 4.9★600+ reviews
  • A+BBB rating
  • LifetimeLabor warranty
Emerald City Energy installer fitting a replacement window for a Mountlake Terrace-area homeowner
4.9
600+ homeowner reviews
WA Licensed & Bonded · EMERAI*034KG A+ BBB Accredited Business Showrooms in Tukwila, Bothell & Seattle Free Estimates & Financing
Mountlake Terrace, Washington

Your local window, door & deck installer in Mountlake Terrace

Mountlake Terrace was built largely in the years after World War II, and its compact ramblers are still the heart of neighborhoods like Cedar Way, Melody Hill and the streets around Lake Ballinger. We replace windows and doors and add composite decks throughout the city.

Every project starts with a free in-home estimate and a clear written quote. Windows and doors are installed by AAMA, Lead-Safe, Andersen and Milgard certified crews, and every window installation is backed by a lifetime labor warranty.

  • Licensed, bonded & insured in Washington
  • Serving Snohomish County since 1997
  • A+ BBB rating, 600+ five-star reviews
  • Financing on approved credit
What We Install

Windows, doors & decks for Mountlake Terrace homes

One local team for the whole exterior, with products chosen for the Pacific Northwest and installed to manufacturer specifications.

Composite Decks & Railing

Custom-built composite decks and railing that resist moisture, moss and rot and never need staining or sealing. Most decking lines carry 25 to 50 year manufacturer warranties.

Brands: Trex, TimberTech

Deck building in Mountlake Terrace →
Built For Local Conditions

Energy-efficient upgrades for Mountlake Terrace homes

Postwar ramblers are simple, well-built houses that respond well to new windows. Swapping original single-pane or aluminum units for insulated glass makes a small home noticeably warmer and quieter, which matters for the many homes close to I-5.

Mountlake Terrace homes are served by Snohomish County PUD, which has offered rebates on qualifying energy-efficiency upgrades. Programs and eligibility change, and often depend on how your home is heated, so ask us during your estimate and we'll help you look into what is currently available.

Up to 30%Lower heating and cooling bills with energy-efficient replacement windows.
Lifetime labor warrantyOn every window installation, from certified installers.
25 to 50 yearsTypical manufacturer warranty on the composite decking we build with.
What Homeowners Say

Rated 4.9 by 600+ Puget Sound homeowners

Verified Google reviews from customers of our Tukwila, Bothell and Seattle locations. Read all reviews

Mountlake Terrace FAQ

Questions from Mountlake Terrace homeowners

Do you install replacement windows in Mountlake Terrace, WA?
Yes. Emerald City Energy installs energy-efficient replacement windows throughout Mountlake Terrace, including Lake Ballinger, Cedar Way, Terrace Park, and Melody Hill. We are an authorized dealer for Milgard, Andersen and Simonton, and we have served Snohomish County since 1997.
How much do replacement windows cost in Mountlake Terrace?
It depends on the number of windows, the frame material, the glass package and how the openings are finished, so we price every home individually. The in-home estimate is free and comes with a written quote, and financing is available on approved credit.
Are there utility rebates for new windows in Mountlake Terrace?
Mountlake Terrace homes are served by Snohomish County PUD, which has offered rebates on qualifying energy-efficiency upgrades. Programs and eligibility change, and often depend on how your home is heated, so ask us during your estimate and we'll help you look into what is currently available.
Which window, door and decking brands do you install?
We install Milgard, Andersen, Simonton and Ply Gem windows; Codel, Simpson, Alliance, Andersen and LaCantina doors; and Trex and TimberTech composite decking. Every brand is backed by its manufacturer warranty.
Are composite decks a good choice in Mountlake Terrace?
Yes. Trex and TimberTech composite decking is well suited to our wet Pacific Northwest climate. It resists moisture, moss, rot, warping and splintering, and never needs staining or sealing. Most composite decking carries a 25 to 50 year manufacturer warranty.
Where is the nearest showroom to Mountlake Terrace?
Our Bothell showroom at 23905 Meridian Ave S, Bothell, WA 98021 is the closest to Mountlake Terrace. It is open Monday through Friday, 9:00 AM to 5:00 PM. You can see and compare full-size windows, doors and composite decking in person.
Is Emerald City Energy licensed, bonded and insured?
Yes. We are licensed, bonded and insured in Washington State (contractor license EMERAI*034KG) and hold an A+ rating with the Better Business Bureau, with more than 600 five-star reviews.
See It In Person

Visit a showroom near Mountlake Terrace

Our Bothell showroom is the closest to Mountlake Terrace. See full-size window, door and decking displays and talk through options with our team.

Emerald City Energy Bothell showroom, the nearest to Mountlake Terrace Nearest to Mountlake Terrace Open M–F

Bothell Showroom

23905 Meridian Ave S
Bothell, WA 98021
Mon – Fri: 9:00 AM – 5:00 PM
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Emerald City Energy Tukwila showroom Open Mon–Sat

Tukwila Showroom

131 Andover Park E
Tukwila, WA 98188
Mon – Fri: 9:00 AM – 5:00 PM
Sat: 9:00 AM – 3:00 PM
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Emerald City Energy Seattle showroom By Appointment

Seattle Showroom

8760 Greenwood Ave N
Seattle, WA 98103
By Appointment Only
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Free Estimate

Start your Mountlake Terrace project

Tell us what you have in mind. There's no charge for the estimate and no pressure to buy.

  1. Fast, no-pressure quoteMost projects are quoted within 24 hours.
  2. Personalized optionsChoose from leading brands and finishes to match your home.
  3. Clear communicationUpdates from our team from order through install day.
  4. Expert installationCertified installers ensure a precise fit and long-term performance.

Prefer to talk? Call (425) 228-1792.

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