Manufacturing and Installing The Highest Quality Fireproof Doors and Windows for 70+ years. Serving the New York Metropolitan and surrounding areas, our team at Capitol Fireproof Door / Mercury Lock & Door Service prides itself in exceeding the expectations of our customers. We can manufacture and install fireproof doors and windows for all types of businesses and residences including apartment buildings, office buildings, nursing homes, hospitals, senior housing, hotels, schools, churches, corporations, private residences, factories, medical labs and government and public institutions.
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Our Mercury Lock & Door Service division is the professional answer for all your door installation and service needs. Since 1991 we have been providing our customers with expert installation and repairs. Our highly trained and experienced staff will ensure your doors are installed properly and meet all current fire codes and safety standards.
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I can't express in words how happy I am with the door, including the paint job. And your staff who installed the door were incredibly professional, friendly, and helpful. Every person I dealt with at your company, have been great and I tremendously appreciate your work and would highly recommend you in the future.
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