History
We wanted to provide superior service, at reasonable prices to the Denver area, with emphasis on honesty and intregity. Because of this, 95% of our business is from repeat customers and their referrals! With us, your job is done right, on time, and for less than many other companies charge.
Specialties
We get your door working properly the first time, without trying to sell you items you don't need! We have built our reputation on honesty, quality, and professionalism. Call GDI for your service, and experience why 95% of our business comes from repeats and referrals!