Lock Installation & Maintenance Services in Connecticut

At Charm's Security, we provide expert lock installation and maintenance services. Whether you're upgrading your home, installing new locks in a commercial property, or maintaining existing hardware, our experienced team delivers reliable workmanship and quality results. From lock installation to comprehensive lock maintenance, we ensure your property stays secure year-round.

We proudly serve customers across West Haven, Orange, Milford, Branford, North Haven, New Haven, Hamden, East Haven, Guilford, Cheshire, Wallingford, and North Branford throughout New Haven County..

Professional Lock Installation Services in Connecticut

Residential Lock Installation

We install deadbolts, knob locks, lever handle locks and high-security systems for homes throughout Connecticut. Each installation includes proper alignment, secure mounting, and testing for smooth operation. Whether you're in a new home or upgrading outdated hardware, our residential locksmith services ensure reliable protection.

Commercial Lock Installation

We install panic bars, high-security locks,lever locks, deadbolts and can make master key systems for businesses across Connecticut. Our team works with property managers, business owners, and contractors to provide the right hardware for your facility. Explore our commercial locksmith services for complete business security solutions.

Lock Installation

We install deadbolts, knobs and levers among other hardware from trusted manufacturers. 

High-Security Lock Installation

We install restricted keyway systems, and commercial-grade security hardware that provide advanced protection against picking, drilling, and forced entry.

Lock Hardware Replacement

We replace worn, broken, or obsolete lock systems with modern, reliable alternatives. Whether you need a single lock or want to upgrade all hardware in your property, we source quality products and install them correctly.



Lock Maintenance Services in Connecticut


Lock Repair Services

We diagnose and repair issues with locks among other hardware. Many problems can be resolved without full replacement, saving you money while maintaining security. Our repair services cover residential and commercial applications.


Lock Adjustment and Alignment

Door settling and temperature changes can misalign locks over time. We realign locks, adjust strike plates, and ensure proper door fit so your hardware functions smoothly and securely.



Why Choose Charm's Security for Lock Installation and Maintenance?

As a third-generation family-owned business serving Connecticut for over 60 years, Charm's Security combines tradition with modern expertise. Our commitment to quality workmanship and customer satisfaction has built lasting relationships throughout New Haven County and beyond. When you choose us for lock installation and maintenance, you receive:

  • Expert Installation: Our technicians understand proper installation techniques, door preparation, and hardware specifications.
  • Quality Products: We source locks from trusted manufacturers known for reliability and security performance.
  • Licensed and Insured: We operate with professional accountability and comprehensive insurance coverage.




Frequently Asked Questions About Lock Installation & Maintenance

How long does lock installation take?

Every door is a unique application, please feel free to call us with your situation, and we will be happy to discuss your options. Sometimes we require pictures of the current door/hardware and sometimes an onsite survey is required (which is no charge just to assess the application). We strive for the most cost effective and most secure options we can offer per application.


Can you install locks on existing doors without damage?

Yes, in most cases. If your door has the correct boring and mortising, installation is straightforward. If door preparation is needed, we use professional tools to create clean, precise openings while maintaining the door's structural integrity.

Do you provide a warranty on lock installation?

Yes, all installations include manufacturer warranties on the hardware and our workmanship guarantee. 

What's the difference between lock repair and lock replacement?

Lock repair addresses specific issues like worn springs or sticky cylinders as well as commonly worn parts of the lock that may be replaceable to save cost also while keeping your existing hardware—often the most economical solution. Lock replacement involves installing/replacing with entirely new hardware and is recommended when locks are severely worn, damaged beyond repair, or don't meet current security needs.

Professional Lock Installation and Maintenance in Connecticut


Ready to upgrade your security with professional lock installation or schedule maintenance for your existing hardware? Charm's Security provides expert service backed by over 60 years of experience serving Connecticut communities.

Store Hours: Monday - Friday: 8:30 AM - 5:30 PM

Contact Information:Phone: 203-795-1100. Visit our contact page to send us a message, request a quote, or get directions to our location.