Our customers love our high-quality window and door installation work
Read what our loyal customers have to say about our family-owned-and-operated business. We have been assisting customers since 1991 and most of our business comes from customer referrals. Call us today. We are here to help!
Customer Testimonials
"For four years, I have enjoyed the specialty dual-pane vinyl windows and French doors installed in my home! The Koach team did a timely install and at a reasonable cost. It changed the look of my home and cut back on noise and weather-related issues. I would highly recommend them for your business or home."
- Melissa N. of Claremont, CA
"Koach's installed two sliding doors for us where there were once windows - one in our dining room and one in the master bedroom. They are beautiful and they looked like they were original to the house design. Not only did they install the doors perfectly, but they patched the stucco and installed moulding that matched the rest of the house. Great job. Thanks!"
- Jim E. of San Dimas, CA
"Our sliding doors kept coming apart and jamming up on the track. Finally, we'd had enough and decided to replace them. We went to 2 big box stores and they scribbled some numbers onto a sheet of paper, but provided no real quote. Then we contacted the San Dimas Chamber of Commerce and they recommended Koach's. Their material cost was similar to the big box stores, but we could save on the labor cost. They also gave us a complete written estimate. We hired Koach's. They hauled away the old doors, installed new ones, cleaned up and even threw in some door stops that were not included in the quote. They have our highest recommendation. What did we learn? Contact the Chamber, patronize their members, and live happily ever after"!
- Paul M. of San Dimas, CA
