Lock Change

Lock change and replacement

Last reviewed April 2026 · Swift Key San Diego

A thirty-year-old lock that's been rained on, kicked, or rattled by a dozen tenants is not protecting you — it's just an obstacle for an opportunist. We replace worn-out, loose, or low-grade hardware with current ANSI Grade-1 or Grade-2 deadbolts and knobs sized for your door. The new lock ships with a fresh key set you own outright.

(858) 808-6055 Request a quote

Locksmith installing a new Grade-1 deadbolt on a residential front door

What's included in this service?

Deadbolt replacement (single-cylinder and double-cylinder)
Door knob and lever replacement
Strike plate upgrade to 3" screw reinforcement
Door prep when the old bore hole is wrong size for new hardware
Mailbox, gate, and shed lock replacement
Sliding-door and patio-door lock replacement

When do you need this service?

Lock feels loose, sticky, or wobbly
Key takes multiple tries to turn
Deadbolt doesn't fully extend into the strike plate
Upgrading from Grade 3 builder-grade to Grade 1 security
Cosmetic upgrade — new finish, modern look
Converting from keyed knob to keyed deadbolt (ex-rental cleanup)

What do homeowners ask about Lock Change?

Service area

Where do we offer Lock Change in San Diego County?

We provide lock change in every city and community in San Diego County. Pick your city for local climate notes and service specifics.

Central Lock Change in San Diego Dense mix of craftsman homes, downtown condos, and new-build towers — every kind of lock hardware rotates through on a weekly basis.

North Coastal Lock Change in Oceanside High PCS turnover near Camp Pendleton generates steady rekey demand; rental properties cycle tenants faster than most areas.

North Coastal Lock Change in Carlsbad Mix of master-planned communities, corporate campuses, and Legoland-adjacent vacation homes — residential and commercial work both run steady.

North County Inland Lock Change in Escondido Large single-family homes and gated communities — most have 3–5 exterior cylinders we key alike on rekey calls.

East County Lock Change in El Cajon Mix of older homes, newer developments, and multi-family housing — lockout and rekey volume is one of our highest county-wide.

South County Lock Change in Chula Vista Eastern developments (Otay Ranch, Eastlake) run modern hardware; western Chula Vista has older cylinders we service often.

See lock change in all 48 cities

Lock Change in Alpine Lock Change in Bonita Lock Change in Bonsall Lock Change in Borrego Springs Lock Change in Boulevard Lock Change in Campo Lock Change in Carlsbad Lock Change in Chula Vista Lock Change in Coronado Lock Change in Del Mar Lock Change in Descanso Lock Change in Dulzura Lock Change in El Cajon Lock Change in Encinitas Lock Change in Escondido Lock Change in Fallbrook Lock Change in Guatay Lock Change in Imperial Beach Lock Change in Jacumba Lock Change in Jamul Lock Change in Julian Lock Change in La Mesa Lock Change in Lakeside Lock Change in Lemon Grove Lock Change in Mount Laguna Lock Change in National City Lock Change in Oceanside Lock Change in Palomar Mountain Lock Change in Pine Valley Lock Change in Potrero Lock Change in Poway Lock Change in Ramona Lock Change in Ranchita Lock Change in Rancho Bernardo Lock Change in Rancho Peñasquitos Lock Change in Rancho Santa Fe Lock Change in San Diego Lock Change in San Marcos Lock Change in San Ysidro Lock Change in Santa Ysabel Lock Change in Santee Lock Change in Shelter Valley Lock Change in Solana Beach Lock Change in Spring Valley Lock Change in Tecate Lock Change in Valley Center Lock Change in Vista Lock Change in Warner Springs

Real feedback

Homeowners who hired us for this

Locked keys in the car at Target parking lot on a Sunday afternoon. Called and the tech was there in 25 minutes. Used some kind of inflatable wedge and a rod — no damage to the door. Paid what they quoted, no surprises.

Maria G. Car Lockout · Chula Vista

Just bought our first house and wanted all the locks rekeyed. Four doors, keyed alike, done in under an hour. The tech explained everything and even showed us how a rekey works. Way cheaper than replacing all the locks like we thought.

Jason B. Lock Rekey · Oceanside

My late father's safe had been sitting locked for ten years — we had no combination. Swift Key opened it non-destructively, then helped me change the combo so I could actually use it. Took about 90 minutes. Professional and careful with the safe.

Patricia W. Safe Opening · La Mesa

Serving San Diego County

Need lock change in San Diego County?

Call for a free quote. Most work scheduled within the week.