For over 70 years Denver Key & Lock has served Denver, the surrounding metro area and beyond. Woman owned and operated, our quality of service is unequaled. No other service is better equipped to fill any and all of your security needs. No job is too large or too small. From residential repairs to institutional and commercial retrofits and master key systems, we can provide you with the best possible solutions at a great competitive price. We offer the finest products available including ASSA High-Security Lock Systems. Feel free to call and speak to one of our qualified service professionals.