DP Door Company

Diamond Rating

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 AAMA Certified Diamond, the dealers must have at least one member from each of their installation crews complete the AAMA Installation Masters training and pass the AAMA Certified Install test.
To earn the Product Knowledge Diamond, all Dealer Sales Consultants must pass a series of standardized Milgard administered tests demonstrating Milgard product knowledge.





8633 Baseline Road
Rancho Cucamonga, CA 91730
United States

Services Offered

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

About Us

As your Rancho Cucamonga Milgard Certified Dealer, we are proud to help you create the home you and your family deserve. A visit to our beautiful showroom will allow you to experience why so many of your neighbors have chosen Milgard windows and doors for their home. 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 professionally trained window experts are available to answer all your questions and help you find the perfect replacement windows and patio doors for your home.

Areas Served

Rancho Cucamonga


DP Door Company

See All Reviews
DP Door Company is rated 5.0 out of 5 by 31.
Rated 5 out of 5 by from Friendly and prompt. We have used DP Door Company many times, for our residence and for our rental. They show up when they say they are supposed to and complete the job in a timely manner. I would recommend them to anyone.
Date published: 2016-11-06
Rated 5 out of 5 by from Professionals on every level. Excellent. Extremely happy regarding all aspects of the job.
Date published: 2016-10-24
Rated 5 out of 5 by from DP Doors is # 1 in customer service, quality & care. We have used them in the past & present and will continue to use them in the future. DP Doors has been in our area a very long time. Trustworthy, knowledgeable, & competent sales and service staff.
Date published: 2016-10-21
Rated 5 out of 5 by from Outstanding service and installation We had the sliding doors (2) and windows (9) on the South side of our home changed to Milgard products by DP Door Co. and am very pleased with the products and the work done by the DP Door crew. This makes the 7th home we have used Milgard windows in and cannot be happier with the results. We would highly recommend DP Door Co. and the Milgard products. Looking forward to replacing the rest of the windows in the home.
Date published: 2015-06-05
Rated 5 out of 5 by from Excellent customer service and craftsmanship Approximately one year ago I contacted DP Doors for our windows and front door replacement project. I knew I wanted to work with a local company and many friends and neighbors had recommended DP doors. Shirley (office manager) was amazing and soooo patient with me !! I knew nothing about windows and front doors and after many visits to their showroom and lengthy conversations I knew they were the ones I wanted to work with !! We scheduled the project in March to be performed in late June. The installers were incredible !! They knew exactly what to do and in 4 days they successfully installed 26 windows, 2 sliders, a set of french doors, and a new set french front doors. The work was impeccable...very professional and clean !! It's been 7 months since the project was finished and after some of rain and winds we have had this winter I cannot begin to say how happy we are with the new windows and doors. Thank you DP Doors for an excellent experience !!
Date published: 2015-01-23
Rated 5 out of 5 by from Has help for Mobile Home Owners of cheaper and older homes in area. My 1978 Mobile HOME HAS A WEATHERIZATION problem and too much cold in the winter. So the Low-e thermal upper lower's was to place in the rear bath. Here is were the cold air collects. We may do a side door and a dual regular glass slider and replace with a French Glass Door, thermal and dual pane with privacy glass as of side carport and laundry area. Not recomended we use gas window types.
Date published: 2014-12-11
Rated 5 out of 5 by from Excellent company This is the 2nd time we have used DP door for our window needs ... they are very professional, clean and prompt. They deliver what they promise. Terry , the estimator did a fantastic job setting us up on replacing our sub standard existing windows and keeping our homeowner association off our backs.
Date published: 2014-12-11
Rated 5 out of 5 by from What a pleasure to do business with D.P. Door Co. All around great experience with D.O. Door Co. The customer service is exceptional and the quality and professionalism of their sales and install team are top notch. I am a happy customer and recommend D.P. Doors very highly.
Date published: 2014-12-09
Rated 5 out of 5 by from Product is great; installers flawless Installing the windows has greatly improved the appearance of my home. In addition, the windows keep the noise and the heat/cold out. D.P Door installers were excellent and very professional. I recommend them highly.
Date published: 2014-10-24
Rated 5 out of 5 by from Best installers; best customer service We were looking for a sliding glass door to replace an aging French door. First tried a big box store, and what a nightmare to just get a quote for what we wanted. When we went to D.P. Door, we were greeted and shown high quality products, at a VERY reasonable price. In less than a half hour we purchased what we wanted. The installation was seamless. Experienced installers, backed by D.P.Door, (not a subcontractor that a big box store is not responsible for) completed the project in reasonable time. They weren't even bothered by our "nosey" dogs!! I wish we had known about them before we replaced our windows!! I will go to them for any other door/window project that we may have. Quality of installation makes the difference.
Date published: 2014-10-19
Rated 5 out of 5 by from Very profesional and understanding of our needs We would diffentely recomend DP Door Company. They have replaced all our doors in our house. The new 10 foot double sliding door from Milgard they recently put in really upgraded the apperance of the house and the backyard. It is unbelievable how much more quiet it is having thisnew door.
Date published: 2014-09-08
Rated 5 out of 5 by from Extremely pleased with the product and installation. DP Door was extremely knowledgeable when we were shopping for new doors, they were able to explain the entire process and their installers did a fantastic job in a very acceptable amount of time. I would not hesitate to recommend them to anyone. Also the Milgard sliding doors are fantastic and I'm sure will add value to my house.
Date published: 2014-09-01
Rated 5 out of 5 by from Great customer service, knowledgable, and friendly! From start to finish they answered every question I had, gave accurate quotes, and installation was quick and neatly accomplished.
Date published: 2014-08-10
Rated 5 out of 5 by from D.P. Door Co. is a professional , responsive. accurate vendor of ilgard products. We have partnered with this company for over 4 years on a variety of different and sometimes complex projects on our campus. They have been positive, prompt, efficient, and have met our requirements qnd deadlines so that the resident was not inconvenienced in any manner. The staff, installers and support people have always done whatever was required to make sure that their portion of the project was met. Recall details and warranty items have been few and were handled in an efficient and prompt manner by our vendors representative, whether in person or over electronic means.
Date published: 2014-08-05
Rated 5 out of 5 by from Exemplary, friendly service This was the fourth occasion I have had windows installed by DP Door Co. and each time they have provided exemplary service. The office staff and the installers are to be commended for their courteous and friendly service.
Date published: 2014-03-05
Rated 5 out of 5 by from Excellent craftmanship and great selection I have a rental unit and my tenant were being hassled by a stalker and didn't feel safe, so I had DP Door install a new Milgard sliding patio door in conjunction with the installation of an alarm system. DP Door was great to work with, they matched their schedule to that of my alarm installer and took care of everything, giving me a great deal along the way. The finish carpentry work is outstanding. Highly recommended.
Date published: 2013-05-21
Rated 5 out of 5 by from Highly recommended dealer! DP Door was excellent to work with. After contacting many other dealers while shopping for windows and doors, DP Door was hands down the most informative and had the best customer service. Everyone that I have recommended DP Doors to has had a similar positive experience. They were great in providing helpful suggestions for window ideas, which I very much appreciated (and made such an improvement to one room in particular). I am very particular and they did an impeccable job with the installation. They were clean, respectful to my home, and paid attention to every detail. I am very pleased with my overall experience with DP Door!
Date published: 2013-04-17
Rated 5 out of 5 by from Excellent service-Professional-Well Done We recently had three retrofit sliding glass doors installed in our 1975 ranch house by D.P. Door of Claremont, CA. We found the company to be knowledgable, experienced, and professional. The job was done quickly, the crew who came to our house were personable, and they did the job well inside and out. They offered solutions, protected our floors, matched the trim, and did a great job of cleaning up after they were through. We were very pleased with the service and highly recommend D.P. Door.
Date published: 2013-03-13
Rated 5 out of 5 by from Everything I expected Finally a contractor that does what they should. From being able to see the products in the showroom to the honest pricing to the clean and professional installation every thing was a breeze.
Date published: 2013-03-02
Rated 5 out of 5 by from Best Windows The Milgard windows are great and DP Doors did a great job. Big change in reducing outside noise.
Date published: 2013-01-18
Rated 5 out of 5 by from Very professional Brent and Kevin were great, they work hard and are polite. They did a great job and even cleaned the glass and vacuumed the floor!
Date published: 2013-01-01
Rated 5 out of 5 by from Very easy to work with. From the minute I walked into the store, the service was great. This is the second time I have dealt with them and I'm planning to use them again in the future.
Date published: 2012-11-18
Rated 5 out of 5 by from Very friendly installers, even with all my questions. The price was very competitive as I had had several quotes before ordering. I had 1 window that needed repair and DP Door repaired before putting in window. I was completely happy with the windows and installation.
Date published: 2012-10-29
Rated 5 out of 5 by from Everything was excellent from the start to the finish. I have a 20+ year mobile home. The window I chose to replace the single pane were exactly what I wanted. The showroom was perfect to see all the features. I chose the windows I wanted, made the appointment for sizing and estimate to install. During the installation period, the craftsman putting in the new windows appeared effortless. I realized an immediate relief of a cooler room. They are easy to open and close and look wonderful.
Date published: 2012-10-28
Rated 5 out of 5 by from Great service, great product and very fair pricing I would recommend DP Door Co. to all my friends and family.
Date published: 2012-10-25
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