Free Quote
4.9
192 reviews

Very happy customer

Lori S.

We were getting quotes for new windows and a patio door From a couple different companies. and I actually had one company I had to call 8 different numbers just to reschedule my appointment. Well I canceled it when I finally got to someone. I requested a quote from Design Windows and doors I immediately got a call from Bill about getting me a quote. He came out did the measurements we went over what we wanted. He even made some suggestion we didn’t even think to ask. After the order was in and the manufacturing started my project manager Martha reached out to me every week if not twice a week just touching base letting me know where we are on the project and if I needed any help or had any questions. We did add to the order which she quickly made the adjustments and kept the project on track. It was so refreshing knowing a business cares about their customers and giving excellent customer service. I have already recommended them to several family members and friends.

Love my windows

Gilbert M.

Can’t tell you enough how satisfied my wife and I are with our new windows. From our sales rep down to dealing with the installers, the process of it all was smooth. I never once felt like I wasn’t in great hands. I would definitely recommend Design Windows to anyone looking to upgrade their home.

Beautiful door

Tina K.

I got my sliding door installed on 05/13/20. The installer were prompt, efficient, friendly and professional. My door is a good quality. I recommend a Design window Door To anyone who is looking.

4 new windows

Shereen M.

This is the 4th time I have used this company. They gave me an estimation of time for delivery and installation of 8:00am - 10:00am. They arrived exactly at 8:00am. My carpenter/handyman appeared a bit afterwards and they worked well with him. The windows are made by Milgard and they are beautiful! The 2 workers wore corona virus protective gear and were friendly and courteous

New Sliding Doors - Fantastic Experience

Kerry H.

Our experience with Design Windows and Doors was fantastic from the very first meeting. We ordered four new sliding glass doors to replace the original sliding glass doors on our home. The entire team was professional and motivated to make the experience pleasant for us. We received weekly updates on the status of our project. The day of installation, the crew showed up on time and they worked diligently to finish the job in a timely manner. When the crew finished the job, they cleaned up the job site and met with us to make sure we had no questions. Our new doors look absolutely amazing! The following day, we received follow-up to make sure everything had gone well. I would highly recommend using Design Windows and Doors and we will be using them for other projects in the future.

Amazing job

Daniel c.

From the very start to the installation day it was a great experience, very professional, detailed and polite all of the people I talked to over the phone as well as in person Everyone took their time explaining absolutely everything in detail I’m very happy with the end result !

Amazing job!

Daniel c.

From the very start to the installation day it was a great experience, very professional, detailed and polite all of the people I talked to over the phone as well as in person Everyone took their time explaining absolutely everything in detail I’m very happy with the end result our kitchen dining door looks great! Thank you!

Love My New Windows

Shannon B.

I used Design Windows and Doors, some years ago when I had the windows and sliders replaced in my old condo. Now that I am in my house, I saw that I needed to have the front and kitchen windows replaced (7 windows total). I only called one place. After Joe came out and gave me a estimate, I placed my order. Once the order was set up Martha was my rep. She kept me informed on the progress and when the install would be. Yesterday my new windows were installed and the difference was instant. The house got instantly quieter even before they had finished adding the trim and caulking. The install guys were wonderful, respectful of property and cleaned up once finished. If it weren't for the new windows you would not have known they were there. Should I ever need to replace any more windows in the future I will definitely contact them.

Very happy with installed door

Bob

I am veryu happy with the new door that was installed. It opens very easy and very easy to slide open. two gently men were very good at wjat they did. Very happy with this company.

answer your request

beverly g.

j{0z*.-

4.9 out of 5
Out of 192 Reviews
Installation Master
Milgard
Approved Installer

Request appointment?

Ontario Office Design Windows And Doors


  • 504 S Mountain Ave Ontario, CA 91762
  • (909) 377-4447