Lock Change, Rekey & Smart Lock Installation

Free Service Call • 12 Month Warranty • Same-Day Availability

★ 4.9 Google Rating Free Service Call 12 Month Warranty Licensed & Insured Same-Day Service

★ 4.9 Google Rating • Family-owned in Brookline • Over 10,000 happy customers

Lock Services We Provide

Whether you just bought a home, want to upgrade your security, or need a professional smart lock setup, our licensed locksmiths will assess your situation and recommend the right solution.

Lock Change & Replacement

Full lock replacement for any door
After moving, breakup, or lost keys
Residential & commercial
High-security options including Medeco

Call for Pricing: (617) 659-2521

Lock Rekeying

Same lock, new key — more affordable than replacement
After tenant turnover or roommate change
Master key systems for commercial properties
Ideal when locks are in good condition

Call for Pricing: (617) 659-2521

Smart Lock Installation

Schlage Encode & Connect series
Yale Assure series
Kwikset Halo & SmartCode
Professional installation + full app setup included

Schedule Installation: (617) 659-2521

Deadbolt & Security Upgrade

New deadbolt installation
Upgrade from standard to high-security hardware
Security assessment included at no charge
ANSI Grade 1 options available

Get a Free Quote: (617) 659-2521

Commercial Lock Services

Panic bar & push bar — install, repair, code compliance
Commercial door closer installation & repair
Storefront lock service
Master key systems & access control

Call for Commercial Quote: (617) 659-2521

Free Service Call for Lock Services

Planning a lock change, rekey, or smart lock installation? Your service call is free. You only pay for parts and labor — no trip charge, no hidden fees. We give you a full quote before any work begins.

Call to Schedule: (617) 659-2521

Rekey vs. Replace — Which Is Right for You?

This is the most common question we hear. Here is a straightforward breakdown to help you decide before you call.

Rekey — Best When:

Your locks are in good working condition
Unknown keys exist (previous owner, old tenant)
You want the most budget-friendly option
After moving, tenant change, or lost key

Replace — Best When:

Locks are old, worn, or damaged
Upgrading to high-security hardware
You want a different style, brand, or smart lock
Lock has been tampered with or forced

Not sure which applies to your situation? Call us — we will assess your locks and recommend the most cost-effective option at no charge.

Call to Ask: (617) 659-2521

Smart Lock Brands We Install

We install, configure, and pair your smart lock with your phone. Full app setup is included with every installation.

Schlage

Encode & Connect series. WiFi-enabled, no hub required. Works with Alexa and Google Assistant.

Yale

Assure series. Works with Apple HomeKit, Google Home, and Amazon Alexa out of the box.

Kwikset

Halo & SmartCode series. Reliable smart entry at an accessible price point.

Medeco

High-security, bump-proof, and drill-resistant. The standard for properties requiring maximum protection.

Schedule Smart Lock Installation: (617) 659-2521

Why Homeowners & Businesses Choose Locksmith On Call

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Free Service Call No trip charge for planned lock work. You only pay for parts and labor.

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12 Month Warranty Every installation is backed by a full one-year warranty on workmanship.

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Licensed & Fully Insured Massachusetts licensed locksmith. Fully insured for residential and commercial work.

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Same-Day Availability Book today and we come today. Available 7 days a week across Greater Boston.

Honest Pricing Full quote before we start any work. No surprises, no hidden fees.

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Family-Owned in Brookline Local business, real address, over 10,000 happy customers across Greater Boston.

Call Now: (617) 659-2521

Lock Services Across Greater Boston

We serve homeowners and businesses throughout the Greater Boston area. Call to confirm service to your address.

Brookline Newton Cambridge Brighton Lexington Watertown Waltham Belmont Somerville Needham Chestnut Hill Wellesley Concord

Call to Confirm: (617) 659-2521

Frequently Asked Questions

Should I rekey or replace my locks?

Rekey if your locks work fine but unknown keys exist (after moving, lost key, tenant change). Replace if locks are old, worn, damaged, or you want to upgrade to high-security. Not sure? Call (617) 659-2521 — we'll assess and recommend.

How much does a lock change cost?

Pricing depends on lock type and quantity. We give you a flat quote before we start — no hidden fees. Call (617) 659-2521 for a free estimate.

Do you install smart locks?

Yes. We install and program all major brands — Schlage, Yale, August, Kwikset, and more. We'll help you choose the right smart lock for your door.

Is the service call really free?

Yes. You only pay for parts and labor — no trip charge, no service call fee.

Do you offer a warranty?

Yes — 12 month warranty on all parts and labor. If anything goes wrong, we come back and fix it at no extra cost.

Ready to Upgrade Your Locks?

Free service call • 12 month warranty • Same-day availability

Call Now: (617) 659-2521

★ 4.9 Google Rating • Family-owned in Brookline • Over 10,000 happy customers