About Lake Washington Windows and Doors

Since 2008, Lake Washington Windows and Doors has developed a professional reputation to be proud of through trust, hard work, and a commitment to the customers and communities we serve. 

A Name You Can Trust

Lake Washington Windows and Doors opened for business shortly before the worst global recession in recent memory. Despite the timing, we succeeded during those difficult years, and throughout more recent hardships like the COVID-19 pandemic and rising inflation, based on our fervent commitment to customer satisfaction, continuous operational improvement, and product quality control. Learn about our company history and read our founder’s story.

No matter what the future holds, we want our customers to rest assured knowing Lake Washington Windows and Doors will always be a name you can trust.

Licensed, Bonded, Insured

GC License #LAKEWWW901K5

Our Mission & Values

A strong company culture is essential for delivering excellent customer service, and a strong culture starts with a clear vision. At Lake Washington Windows and Doors, we pursue a simple vision with laser focus: 

Be the best window and door company in the State of Washington by providing the highest standard of customer service possible.

To accomplish our mission, each team member upholds the values of:

  • RESPECT FOR ALL INDIVIDUALS through integrity, open-mindedness, and appreciation.
  • STRONG TEAMWORK with a sense of hunger, humility, intelligence, and accountability. 
  • Providing THE BEST CUSTOMER CARE by being prepared, courteous, and friendly.
  • HAVING FUN with a balanced, positive, and optimistic attitude.
  • CONTINUAL IMPROVEMENT by maintaining curiosity, motivation, and a growth mindset.

Meet Adrian Au, Founder

As the owner of Lake Washington Windows & Doors, Adrian has built his reputation in the building industry over the past sixteen years based on trust, hard work, and a dedication to serving the customer.

His values are rooted in a  humble upbringing in the small town of Puyallup, WA, and reinforced through his years working with one of the largest window manufacturers in the country. There he practiced the company’s strong values: respecting all individuals, providing the best service to the customer, and pursuing excellence in all aspects of life.

“These values shape how we approach our clients: be informative, patient, and consultative. With so many window and door options to choose from, we understand that an investment of this size in your home should be considered carefully. If it requires us to meet you several times to help answer your questions, we will do it with a smile and a willingness to ensure that you are absolutely 100% comfortable with your buying decision.”
— Adrian Au

We Prioritize Customer Satisfaction

Throughout every step of the customer experience, our top priority is your satisfaction. We understand that every detail matters. From the initial conversation with our highly-trained sales professionals, the quality of our product, the wording of our written customer agreements, to our clean up after a respectful installation.

After serving close to one thousand customers, we’ve maintained one of the highest customer review ratings in our industry throughout the Greater Seattle area. Given our mission to become the best, we won’t settle for anything less than complete customer satisfaction.

“We tend to do a lot of our home remodeling work based on referrals, and Lake Washington Windows and Doors was mentioned continuously. When people you know and trust are recommending the company and the name is being brought up repeatedly, it gives you a high degree of confidence going into that relationship.”
— Cory & Juli

We Only Offer The Best Products

When it comes to our products, we’re extremely selective of the manufacturers and products we choose to partner with. After nearly two decades of experience, we’ve narrowed down the best-in-class product selection in the industry to meet our customers’ needs and home design here in the Pacific Northwest.

We specialize in two specific services to ensure we are providing the highest quality work within our capabilities with guaranteed customer satisfaction.

Window Replacement

We’ll replace your old home windows with the highest quality replacements on the market, protected by our patented Leak Armor Protection, following our simple replacement process.

Choose between energy-efficient fiberglass, economical vinyl, or beautiful wood-clad materials in various styles and design options.

Door Replacement

We’ll replace your worn entryway door with energy-efficient fiberglass, traditional wood, or high-security steel options, or choose from various patio door styles, including fantastic stacking glass wall options.

To ensure our services are accessible to all community members, we offer affordable window and door replacements with competitive financing options.

Award-Winning Company

At Lake Washington Windows and Doors we’re extremely proud to be the recipient of multiple consecutive yearly awards from both local and online organizations including

Seattle Window Replacement Awards

We’re grateful to our community for all their support which made these awards possible and believe in doing our part to give back through supporting local organizations with an excellent cause.

If you’re an experienced sales or installation professional, or you’d simply like to join an award-winning team of professionals committed to excellence, we invite you to visit our career page to explore the job opportunities we have available.

Meet Our Team

At Lake Washington Windows and Doors, we believe in the importance of experience. Over the years, we’ve assembled a team with over 575+ years of combined experience in the window and door industry led by the following individuals:


President / GM


Director of Operations


Sales Manager, Retrofit Division

Our Locations

Schedule an appointment at one of our two conveniently located showrooms, staffed with highly-trained and helpful sales professionals ready to answer all your questions


740 SW 34th St #201
Renton, WA 98057


5005 Pacific Hwy E #17
Fife, WA 98424


4500 9th Ave NE Suite 300
Seattle, WA 98105