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General Millwork Supply, Inc.

1249 Linda Vista Drive
San Marcos, CA 92078


General Millwork Supply is a full-service window and door dealer, located in San Marcos, CA. We serve the entire County of San  Diego and its surrounding areas. We have over 50 years of experience in the building industry. Family owned and operated by Tom and Wendy Duran since 1991, our company specializes in selling quality nationally known brand-name windows and doors to homeowners, building contractors and architects.

Our company is proud to have one of the largest showrooms in San Diego County, displaying windows, doors, skylights, mouldings and door hardware to match virtually any architectural style and budget plan. General Millwork Supply offers many fine lines of quality wood, fiberglass, vinyl and aluminum windows, entry doors, roof windows and skylights. In addition, we supply interior doors, wardrobe doors, decorative mouldings and many other specialty building products. One-stop shopping!

Call or stop by our beautiful showroom today for a free quote from our professional, no-pressure staff. We look forward to meeting you!

Our Window and Door Product Line:

We are committed to providing you with the excellent customer service and prices you can afford!

Contact General Millwork Supply, Inc. today at 760-591-4257 to schedule an appointment.

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Customer's Testimonials

I have had the pleasure of working with General Millwork Supply for the last 20 years.  They have provided me with countless window and door installations using the industries highest quality products.  General Millwork has a professional staff with knowledge of all the products they have to offer and provides great service. I look forward to working with them for many years to come!

-Chris Corley - Corley's Design & Build

Until we found you through your advertising, we had worked with a number of window & door suppliers and had very poor customer service.  Since we have met your company, we can now rely on first class customer service.  We will continue to use your company in the coming years. Thanks

-Jason Brandt, CEO - JJ Remodeling & New Home Construction, Inc

Thanks so much for your follow-up on the doors and windows. Great to have someone as professional as you working with me. I don't expect that I'll need any more windows anytime soon, but I'll be sure to recommend you and the joy at General Millwork. Thanks again.

-Nicholas M. Gistaro D.M.D

I wanted to thank you for all your patience during our window order. I think it began in February 2009 and took the longest time to get the right size and type decided on. You have been most professional and courteous throughout the whole transaction.

Thank you for answering all my questions, bearing with my confusion and constantly changing time frames. After this house is done, I would like to send you some photos. I am sure you can say a lot about your customers but hopefully you will just admire the windows and forget about saying too much about us...

I would recommend you in a heartbeat to anyone looking for new or
replacement windows.

It was a pleasure to work with you. Once again, I appreciate your kindness, attention to details and patience.

-Lori-anne Elinsky

A decade ago your company replaced our home's window with vinyl
CertainTeed windows.
Over time, the glass in two of these became
defective and in need of replacement.
I therefore contacted your front office to initiate the process.

The purpose of this letter is to let you know that in my view, the people that work for you are a "Top-Drawer" class act. Through the efforts of your staff, our difficult-to-find paperwork was located, the glass ordered, and an installing company recommended. All of the above was done in a timely, professional, and courteous manner. May your company thrive.


We just wanted to thank you for your excellent customer service. It was such a welcomed response when we had a problem with our Milgard windows, that you had Milgard send a technician out right away to replace the glass in the windows. This kind of service is hard to find these days; so thank you!

-James & Sue


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General Millwork

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