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.


1291 N Post Oak Rd Ste 100
Houston, TX 77055
United States

Store Hours

Monday9:00am - 5:00pm
Tuesday9:00am - 5:00pm
Wednesday9:00am - 5:00pm
Thursday9:00am - 5:00pm
Friday9:00am - 5:00pm

Services Offered

Essence Dealer
Free estimates
MGWS Dealer
New construction
Offers installation
Replacement Specialist

About Us

Custom Windows has been serving the greater Houston area for over 35 years and is proud to be a Milgard Certified Dealer. Whether you are a homeowner looking to replace existing windows and doors, or are an architect, contractor or builder designing a new home, we have the expertise to work with you to make your vision a reality.

We specialize in areas that many dealers do not, from noise control solutions, windstorm requirements through maximizing energy efficiency for our climate. So we can craft solutions that meet your needs.

Please visit our gallery to see just a few of the projects that we have successfully completed over the years as well as testimonials and reviews from our customers. And please vist our office and showroom where we can show you different products and discuss how we can help with your project.

Awards Received

Areas Served

Greater Houston, The Woodlands, Katy, Sugar Land, Richmond, Channelview, Pearland, Conroe, West University, Bellaire, Spring Valley, Memorial, The Heights, River Oaks, Friendswood, Cinco Ranch.



See All Reviews
CUSTOM WINDOWS OF TEXAS LLC is rated 4.5 out of 5 by 6.
Rated 2 out of 5 by from Nice, but it takes "style" as well as "substance" We had windows installed four months ago, not without its issues during the install along with 2 others that linger four months following installation. The install was scheduled across 2 days. It was done in a day. Maybe 1st warning sign. I took the day off to watch over the work, and fortunately so. Note: when the installer comes to measure the windows these are taken of the outside opening. Makes sense. Be aware however of how they are set when viewed from the inside. In the case of 3 windows, the point on the bottom window sill that you would have expected to be flush with the inside trim board was a good 1/4" lower leaving 1/4" gap between the top of the trim board & the window. It just looked bad. With an eye for detail, I picked up on this 4 windows into the install. I brought this to the installer's attention whose reply was, "Only you will see it." Really??? Well who else counts? I had him remove & re-set / re-shim the windows which took care of the issue, albeit the 2nd time around & then only because I was there to catch it. The 2nd install issue concerned cutting back the inside trim board to better accommodate the window's depth. 3 window installs along side the house required cutting the inside trim back. Only 2 were cut back. After excuses, once again I had to insist the window be removed, have the cut back made, and be re-installed. That was the install. Two other issues are to Milgard's account. On 4 windows the factory balances were insufficiently strong to hold the window sash up when lifted. Secondly, a 3 1/2" interior grill piece was left off at the factory & not caught by our dealer's inspection. After repeated calls, finally, 3 months following the install a Milgard rep came to fix matters. New balances we installed that finally worked. And the grill? Another issue. The service rep had grill strips in his truck to be cut to measure and installed on site. We were told that the grill only had a primer coat and we would have to paint it ourselves. We asked how it would be possible to match the factory color? That, he didn't know. We insisted Milgard send the proper piece from the factory ready to be installed. Shortly, the Milgard rep noticed that his grill stock's profile he had was not the same as that of our windows. So, this all was for not. He told us that he would inform the factory, and for safe measure we called the local dealer from whom we purchased the windows to follow up. That's all been about a month ago and well ..... radio silence. I can only imagine where we'd be today were it not that I stayed home during the install for one. How long might it take Milgard to get out the 3 1/2" grill piece?--only heaven knows. 4 months and counting .... so beware of making 100% payment at installation for 90% of the agreement.
Date published: 2019-08-24
Rated 5 out of 5 by from Beautiful Windows! Love, love, love the windows, the personnel, the everything! I will use Custom Windows again.
Date published: 2019-06-18
Rated 5 out of 5 by from It isn't very often... It isn't very often these days that I am overly impressed with customer service, expertise and quality. To have all three is a true rarity, but the experience I had with Michael at Custom Windows was exactly that. Michael is a professional in the truest form of the world and went out of his way to get some info for me on the shape/size of three windows before I agreed to go with him. He walked me step and step through the process and followed it up with detailed emails. After the windows were installed there were a few issues that I needed to contact him about but before I could he emailed me letting me know that they would be handled expeditiously and they were. He even noticed things that I didn't notice and its my job as a remodeling contractor to notice those things. I'm definitely going to use their service in the future and would absolutely recommend them. I was just that impressed with their operation!
Date published: 2018-01-30
Rated 5 out of 5 by from Best experience so far in home improvement projects! This is a great company to hire. We loved every phase of our window replacement project! Very professional, timely, excellent work and customer team, good prices and excellent customer service. I really can't say enough good things about this company. I wish that we could hire people like Custom Windows to do all our home improvement projects. Very highly recommended!
Date published: 2017-12-18
Rated 5 out of 5 by from This dealer is great Custom Windows in Houston is a very professional company. Their sales person was very helpful in helping us choose the replacement windows for our home. He explained all our options and price ranges. They have the installer that will be doing the final installation of the windows do the actual measurements for the windows so they fit great. The installers were prompt, professional, and left no mess when they were finished. We replaced half of our windows and will definitely use Custom Windows in Houston to complete the rest of them.
Date published: 2017-12-14
Rated 5 out of 5 by from Excellent I am thrilled with my new double pane windows & enjoying my crystal clear view. The moisture that had built up in my old windows was so annoying. Everyone at Custom Windows was so professional and helpful and my installers did a great job! I would highly recommend Custom Windows for pricing, quality & trustworthy install.
Date published: 2017-10-20
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