Lock Repair & Maintenance

Upfront pricing

24/7 Assistance

Licensed & Insured

Greater Boston Area, MA

Residential Locksmith Services

Emergency Residential Assitance

Residential Lock Repair & New Lock Installation

12 Month Warranty

Choose your option:

CALL NOW IF YOU'RE IN MASSACHUSETTS:

(617) 272-7007

Upfront pricing

24/7 Assistance

Licensed & Insured

Greater Boston Area, MA

Residential Locksmith Services

Emergency Residential Assitance

Residential Lock Repair & New Lock Installation

12 Month Warranty

About SherlockLock Residential Locksmith Services

In depth guide to our services:

Lock Repairs
We prioritize repairing locks over replacing them whenever possible, as it’s more cost-effective and resourceful. However, some locks are beyond repair or of low quality and need replacement. Our service vans are stocked with replacement parts and a variety of locks. Many issues can be diagnosed and priced over the phone based on your description.

Old Locks & Mortise Locks
Older homes in the Boston area often have vintage lock hardware that may need servicing or replacement. Mortise locks, commonly found in high-end properties, are durable and decorative. We recommend restoring these by cleaning and repairing internal components. If replacement is necessary, we offer two options:

1. Replace with a new mortise lock for quality and aesthetic value.
2. Retrofit the door for a modern, durable lock, often a cost-effective choice.

Modern Locks
We carry only A grade locks for durability and can recommend decorative options to suit your style, provide warranty on our job.

Surface-Mounted Locks
These older locks, operated by rim cylinders, often suffer from alignment issues or wear. When needed, we replace them with high-quality alternatives.

Lock Rekeying
Rekeying changes a lock's internal components to prevent old keys from working. It’s a cost-effective solution that requires specialized skill and parts.

Lockout Services
We provide quick and efficient lockout assistance for homes, cars, safes, mailboxes, and more. Most locks can be picked or bypassed without damage. If replacement is necessary, we ensure it matches your existing key whenever possible.

Master Key Systems
A master key system allows one key to operate all locks, with sub-keys providing restricted access. Ideal for landlords and property managers, this setup ensures convenience and security.

Deadbolt & Lock Installation
Installing a deadbolt enhances home security. We also install strike plates for added protection and can fit various other locks, including jimmy-proof deadbolts, chain locks, and peep holes.

High-Security Locks & Restricted Keys
High-security locks are resistant to picking, drilling, and tampering. Restricted keys can only be copied with authorization, offering better control over access—ideal for landlords and businesses.

Lock Repair & Maintenance by SherlockLock

Protecting Your Home with Proactive, Reliable Lock Care – Serving Greater Boston

Locks are your home’s first line of defense, and like any mechanical system, they require occasional repair and maintenance to perform at their best. At SherlockLock, we specialize in diagnosing and repairing all types of residential locks - keeping your home secure and your doors functioning smoothly.

Whether your lock is sticking, turning rough, showing signs of wear, or no longer working reliably, we offer cost-effective repair services designed to restore security without unnecessary replacement.

When to Repair a Lock Instead of Replacing

Many homeowners are surprised to learn how often a lock can be saved with professional repair. If you're experiencing any of the following, it may be time for service:

Keys are difficult to insert or remove
Lock cylinder spins or feels loose
Deadbolt doesn't fully extend or retract
Latch doesn’t align with the strike plate
Internal components feel jammed or stiff
You hear grinding, clicking, or resistance when turning the key

Our trained locksmiths will inspect your hardware, identify the exact cause, and determine whether a precise repair can solve the issue. We only recommend replacement when repair is unsafe, impractical, or more expensive.

Preventive Lock Maintenance

In addition to repair, SherlockLock offers preventive maintenance to extend the life of your locks and prevent emergency failures. This service is especially valuable for older homes, ocean-exposed properties, or multi-unit residences with high foot traffic.

Our maintenance service may include:

Realigning strike plates for smooth locking
Tightening screws and stabilizing hardware
Cleaning internal mechanisms from dirt, dust, or corrosion
Greasing keyways with lock-grade dry lubricant (not household grease)
Verifying operation of all keyed and non-keyed locksets
Inspecting weather-exposed locks for rust or salt buildup

We Repair All Residential Lock Types

Deadbolts (single and double cylinder)
Knob locks
Lever handle locks
Mortise locks (including antique and decorative styles)
Rim and surface-mounted locks
Sliding patio door locks
Storm and screen door hardware
Smart locks and electronic keypads

We also service garage entry locks, mailbox locks, storage doors, and other secondary access points.

SherlockLock: Your Trusted Partner for Home Security

🛠️ Certified locksmiths with advanced training
🏡 Local specialists in Boston’s residential lock systems
🔐 Commitment to preserving your original door hardware whenever possible
🧰 Fully equipped service vans for on-site repairs and upgrades
💬 Transparent pricing with no pressure to replace what we can fix

Keep Your Locks Working Like New

Don't wait for your lock to fail or jam at the worst moment. SherlockLock offers same-day lock repair and scheduled maintenance services designed to prevent lockouts, save you money, and ensure your home remains secure.

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