The following is an interview with Mark McKinstry, general manager of Diamond Head Windows & Doors.

Q: What is the reason for Diamond Head Windows’ rapid expansion?

A: After 25 years in the windows business, my brother and I realized that we needed products that specifically addressed the problems Hawaii’s climate presents, including hardware that would not deteriorate, and that is sold in Hawaii. We use stainless steel hardware throughout. People in Hawaii want the maximum ventilation that they can get, without the drawbacks of jalousie windows. Our windows provide ventilation, security and prevention from wind-driven rain.

We also have specially built screens that hold up to the salt and wind, and that can be easily removed for cleaning from inside the home. We also offer a lifetime screen warranty and installation warranty, and have the best overall warranty in Hawaii.


Regarding service/installation, we don’t use subcontractors. That gives us better control on quality and training, and allows us to give a lifetime installation warranty, should any door or window leak. If you do encounter a problem, no run-around with the manufacturer. Call us, we fix the problem at no cost to you, as long as you live in your home.


Q: What’s new in the market?

A: There are always new innovations and products. We just attended the International Builders Show in Las Vegas, and we regularly meet with manufacturers.

If you have been to Europe, you might have encountered windows that not only slide back and forth, but also swing inwards and tilt back. While these features are perfect for Hawaii, the issue has been building them with stainless steel hardware. We know an exclusive distributorship with German-based manufacturer Rehau, who can produce windows and sliding doors with tilt-in and swing-in options. These are vinyl frames that are hurricane-rated and suitable for high-rise condos.

Q: Why are windows and doors so expensive in Hawaii?

A: Like all products coming to Hawaii, we have substantial shipping costs. Part of our move to establish a new company was to eliminate overhead, middlemen and unnecessary costs. We purchase direct from the manufacturers, and pack our own containers in the Mainland to cut costs. With 25 years of experience in window replacement, we know how to deliver top quality brands efficiently, at below market prices.

Contact Diamond Head Windows to find out about its expanded line of windows, doors and siding. Call for a free in-home estimate and consultation.

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