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

Windows, Doors & Decks in Newcastle, WA

Replacement windows, entry and patio doors, and composite decks for Newcastle homeowners, from a local team that has served the Eastside since 1997.

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

Your local window, door & deck installer in Newcastle

Newcastle climbs the hills between Renton and Bellevue, with older homes in Hazelwood and around Lake Boren and newer view neighborhoods like China Creek and Olympus. We install replacement windows, doors and composite decks across the city, and our Tukwila showroom is a quick trip down I-405.

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 the Eastside since 1997
  • A+ BBB rating, 600+ five-star reviews
  • Financing on approved credit
What We Install

Windows, doors & decks for Newcastle 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 Newcastle →
Built For Local Conditions

Energy-efficient upgrades for Newcastle homes

Many Newcastle homes were built in the 1990s and 2000s with big windows aimed at Lake Washington, the Olympics or Mount Rainier. As those original units age, upgrading to better-insulated low-E glass keeps the view while cutting the heat loss and summer glare that come with it.

Newcastle homes are served by Puget Sound Energy, 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

Newcastle FAQ

Questions from Newcastle homeowners

Do you install replacement windows in Newcastle, WA?
Yes. Emerald City Energy installs energy-efficient replacement windows throughout Newcastle, including China Creek, Olympus, Hazelwood, and Lake Boren. We are an authorized dealer for Milgard, Andersen and Simonton, and we have served the Eastside since 1997.
How much do replacement windows cost in Newcastle?
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 Newcastle?
Newcastle homes are served by Puget Sound Energy, 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 Newcastle?
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 Newcastle?
Our Tukwila showroom at 131 Andover Park E, Tukwila, WA 98188 is the closest to Newcastle. It is open Monday through Friday, 9:00 AM to 5:00 PM, and Saturday, 9:00 AM to 3:00 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 Newcastle

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

Emerald City Energy Tukwila showroom, the nearest to Newcastle Nearest to Newcastle 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 Bothell showroom 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 Seattle showroom By Appointment

Seattle Showroom

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

Start your Newcastle 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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