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Business Details
18 Years
experience
Expert Window & Door Replacement in Seattle
Lake Washington Windows & Doors has been a trusted name in the window and door replacement industry since 2008. Our team brings over 575 years of combined experience, specializing in full-frame replacements tailored to the Pacific Northwest climate. We follow a proven 3-step processcomplimentary consultation, critical measurement, and expert installationto ensure precision and customer satisfaction. Our patented Leak Armor installation system provides unmatched protection against water damage, backed by a lifetime warranty.

We partner with top manufacturers like Milgard and ProVia to offer energy-efficient, durable products that enhance home comfort, security, and value. With a 4.9-star average rating, we prioritize transparency, professionalism, and long-term client relationships, serving King, Pierce, Snohomish, and Kitsap counties.
Services
Window Replacement Door Replacement Leak Armor Installation Energy Efficiency Upgrades Custom Window Design Garage Fire-Rated Doors Pet Door Installation Storm Door Installation Piston Windows Glass Replacement
Details
  • Year established: 2008
Highlights and features
  • Over 575 years of combined experience in window and door installation.
  • Patented Leak Armor system for superior moisture protection.
  • ENERGY STAR certified products that reduce energy consumption by 25-30%.
  • Lifetime warranties on installation and manufacturer-backed product guarantees.
  • Locally owned with a 4.9-star average rating from verified customers.
Associations and certifications
  • American Architectural Manufacturers Association (AAMA)
What people say
Energy savings Professional team Lifetime warranty Quick installation Improved comfort
Services
Full-Frame Window Replacement
Our full-frame window replacement removes old units entirely, including frames, ensuring energy efficiency and durability. We install high-quality vinyl or fiberglass windows with advanced features like Low-E coatings and gas fills. This process eliminates drafts, reduces energy bills, and enhances home aesthetics while providing long-term value.
Entry Door Installation
We replace entry doors with steel, fiberglass, or wood options, focusing on security and curb appeal. Our installations include precise measurements, weatherproofing, and integration with existing home designs. Enhanced locking systems and energy-efficient cores ensure safety, comfort, and reduced utility costs for homeowners.
Leak Armor Installation
Our patented Leak Armor system uses layered flashings, sill pans, and sealants to prevent water intrusion. Designed for the Pacific Northwest's rainy climate, it protects against mold, rot, and structural damage. Backed by a lifetime warranty, this method ensures long-term durability and peace of mind.
Storm Door Installation
We install storm doors to enhance insulation and protect entry doors from harsh weather. Available in various styles, these doors improve energy efficiency while maintaining aesthetic appeal. They act as a barrier against wind and moisture, extending the life of primary doors.
Custom Window Design
We offer custom-sized windows for non-standard openings, including bay, picture, and specialty styles. Our team measures spaces precisely to ensure perfect fits, optimizing natural light and views. Custom options balance functionality with design flexibility for unique homes.
People
Adrian Au
CEO
Adrian Au leads Lake Washington Windows & Doors with a focus on innovation and customer satisfaction. With decades of industry experience, he ensures the company maintains its commitment to quality craftsmanship and cutting-edge installation techniques.
Eric Snider
Director of Retro-Fit Division
Eric Snider oversees retro-fit projects, bringing expertise in energy-efficient upgrades. His leadership ensures seamless integration of modern solutions with older home structures, prioritizing durability and client needs.
Ryan Roberts
Director of Contractor Division
Ryan Roberts manages contractor partnerships, ensuring alignment with the company's standards. His background in construction and project management supports efficient, high-quality installations for residential and commercial clients.
Questions
What is the Leak Armor installation guarantee?
Our patented Leak Armor system includes a lifetime warranty, protecting against water damage with layered flashings and sealants.
Do you offer glass-only replacements?
No, glass replacements require pairing with full-frame window or door installations for quality assurance.
How long does installation take?
Most projects complete in 1-3 days, depending on scope and weather conditions.
Are financing options available?
Yes, we offer $0 down, 0% interest plans and no payments until 2026.
What areas do you serve?
We serve King, Pierce, Snohomish, and Kitsap counties in Washington State.
Can you match existing window styles?
Yes, we offer customizable options to complement your home's architecture.
Videos
Reviews (7)
Bernie Fox
Jun 06, 2022 Report
I selected Lake Washington because of its reputation for professional and responsible service. The price was consistent with other window companies. The crew was courteous and considerate. Eight windows were in installed in a day and a half. Some damage was done to the exterior wrapping around one window. The head of the crew did not blow this off. He acknowledge the damage and assured me I there would be follow-up. I only did not give five stars because I am waiting for resolution of that issue.
Paul Shea
May 13, 2022 Report
We went with 'Lake Washington Windows and Doors' because of a friends recommendation. The first appointment was with Kay who stopped by and talked about window and door options. She put my wife and I at ease with our many questions. We talked about the door I had in mind and we made changes to the hardware. The next appointment was with Somsi who measured precisely for the new door and windows and told me what we areas needed to be cleared to give the workers room.

And when the windows and door arrived and an appointment was made the crew came out to install. We are very happy with our decision. The Milgard Ultra Series C650 fiberglass windows are beautiful, solid and open easily. We replaced two sliding patio doors that slide along nicely and can unlock with a house key. Our bathroom windows and Provia front door have matching waterfall privacy glass. Our backyard borders a school playground. When the windows are shut we no longer hear the kids playing.
Erica Wright
Apr 25, 2022 Report
They did a great job on my sliding door replacement. Communication was great during the entire process from initial inquiry to final confirmation everything is to my satisfaction. Lubo was on time and did a wonderful (and quick) install. Thank you! Service: Sliding glass door installation & replacement
George Tasick
Apr 18, 2022 Report
We wanted to go with Milgard brand windows as it's a local manufacturer here in Tacoma. Lake Washington Windows & Doors (LWWD) was one of their most decorated installers. The quote we received for replacing all 20 windows and a sliding glass door in our 100 year old home was the most reasonable out of all the major brands. Due to the pandemic and supply chain issues, the custom windows took 10 months to completely arrive, but LWWD was communicative and kept us updated on progress. The quality and installation where all top notch and the install crew was great. I'd confidently recommend LWWD to others.
Adam Rogers
Feb 28, 2022 Report
Excellent experience from sales to installation. Their salesperson, James, was honest and respectful of our time and didn't try to push unnecessary product for more money. Furthermore, their quote was significantly lower than their competitors'. Their installers, Josue, Jerel and Erik, arrived on-time, communicated clearly with us, did great work and did it quickly. They were in and out same day with the installation. I highly recommend this company if you are in need of new windows and/or doors.
Carole Velez
Feb 12, 2022 Report
Lake Washington Windows and Doors have installed 10 windows in my home. I used them to install 5 windows the first time and the balance the second time. I knew the configurations I wanted and chose a few fiberglass windows with bronze interior and exterior. I chose white vinyl interior and bronze exterior on the balance. I love my Milgard Windows. The service I received both times was exemplary. I had my quotes quickly and both times the installation was phenomenal.

Both times the trim was delivered in advance of installation so I could paint the trim. I have recommended my sales rep to another friend and I know they will be as happy with their product and service as I was.
Mark S.
Feb 11, 2022 Report
We were looking to replace our 30-year-old windows as we had fogging and moisture between the panes in certain windows. Dave Judge was our contact. After Dave heard our issues and examined the windows closely, he said the window glass had failed but the frames were still in good shape. He recommended we just replace the glass instead of the windows and recommended a couple of places nearby. He also recommended upgrading the glass to help with heat from the sun.

We were very impressed by Dave's professionalism and customer focus by giving us an honest advice for our window problems. It's not often that you find a business who has the customer's best interest at heart. Dave is a great guy to work with. Thank you Dave!