Diamond Rating

To earn the Exceptional Consumer Satisfaction Diamond, the dealer must have 5 or more reviews within the last year on and maintain an average of 4.5 stars or higher.
To earn the Showroom Diamond, the dealer must have a showroom with a minimum number of Milgard products on display.
To earn the Web-Site Diamond, the dealer must have their own Web-site with information about the Milgard products and the services they sell.
To earn the Product Knowledge Diamond, all Dealer Sales Consultants must pass a series of standardized Milgard administered tests demonstrating Milgard product knowledge.


11675 Sorrento Valley Rd.,#L
San Diego, CA 92121
United States

Store Hours

Monday7:00am - 4:00pm
Tuesday7:00am - 4:00pm
Wednesday7:00am - 4:00pm
Thursday7:00am - 4:00pm
Friday7:00am - 4:00pm

Services Offered

Free estimates
Has Showroom
MGWS Dealer
New construction
Offers installation
Replacement Specialist

About Us

As your Milgard Certified Dealer, Designer Window Supply is proud to offer a customized, value-driven approach to the door and window buying process that uniquely reflects the personal identity of the homeowner and turns architectural dreams into reality.

We know buying windows and doors is a high-stakes and complicated situation with no room for error. It takes more than a computer to get it right. Come visit our beautiful San Diego showroom so that you can experience why so many of your neighbors have chosen Milgard windows and doors for their home.

We are committed to exceeding our customers’ goals and expectations by being transparent and open in communication. We deliver an unmatched buying experience through constantly evolving, collaborating, and sharing our knowledge of our window and door products to ensure we provide a premium service.

Whether you would like to leisurely browse and operate our award winning products, learn about the latest design and energy efficiency trends, or discuss pricing or technical aspects of your project, our team of trusted advisors are available to answer all your questions and help you find the perfect replacement windows and patio doors for your home.

Awards Received

  • Milgard Dealer of the Month September 2020
  • AIA Corporate Sponsor
  • Milgard Fastest Growing Dealer of 2020

Areas Served

San Diego, Oceanside, Vista, Carlsbad, Encinitas, Cardiff, Solana Beach, Del Mar, Rancho Santa Fe, Poway, Ramona, San Marcos, Escondido, La Jolla, Carmel Valley, Pacific Beach, Mission Beach, Bird Rock, Del Sur, Rancho Bernardo, Ocean Beach, Imperial Beach, El Cajon, Chula Vista, La Mesa, Mission Hills, Hillcrest, Coronado, Scripps Ranch, SR4, Kensington, Univeristy City, North Park, South Park, Clairmont, Mission Bay, Bay Park, Santee, Bonsal, Temecula, Benita, Dana Point, San Clemente, Laguna Beach, Alpine, Spring Valley

11675 Sorrento Valley Rd.,#L, San Diego, California, United States 92121



See All Reviews
DESIGNER WINDOW SUPPLY is rated 4.6 out of 5 by 8.
Rated 2 out of 5 by from Disappointed Purchased French doors on the recommendation of my installer, with whom I’d worked before and made Milgard purchases before. After a service visit today I’m told that these patio doors, which open on my backyard patio (and the weather) won’t seal unless locked, that’s just a “characteristic of vinyl doors” that can’t be remedied. Mediocre quality design & material. I won’t make any further Milgard purchases. The service person WAS polite & professional, and completed some other adjustments eliminating some seal gaps even when the doors ARE locked, but simply had no solution for gaps when they’re not.
Date published: 2022-11-29
Rated 5 out of 5 by from Great Job Designer Window Supply does a great job, very responsive...on time, accurate, always answers thier phone
Date published: 2022-07-10
Rated 5 out of 5 by from A+ Customer Service DWS is exactly what you hope for in a supply company - professional, trustworthy, knowledgeable, and passionate about what they do! Wouldn't order from anyone else
Date published: 2022-07-06
Rated 5 out of 5 by from Great Product! Arrived on time. Working as a Project Manager for large size General Contractor, I have several custom purchase orders for white vinyl windows. Typically, if the Client is requesting a vinyl style product I will guide them towards the Milgard line.
Date published: 2022-07-06
Rated 5 out of 5 by from Excellent Service! DWS is extremely thorough and detailed with the bidding process and all other facets from purchasing to production to delivery. Also very responsive to any and all questions!
Date published: 2022-07-01
Rated 5 out of 5 by from Incredibly knowledgeable! DWS was incredibly knowledgeable about the Milgard product and helped navigate through all the options allowing us to make an informed decision!
Date published: 2022-07-01
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