Smart locks
House lockouts
Re-keying
Deadbolt upgrades
Schlage
Kwikset
Car keys & fobsNon-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Get your free estimateLocksmith in Mercer Island, WA
Rekey Locks is the call we make most often on Mercer Island, and for good reason: the island is full of mid-century single-family homes with aging Kwikset and Schlage hardware, salt-laden air that eats at exterior cylinders, and a steady churn of homeowners moving in and wanting fresh security. Lodestar Locksmith has served Mercer Island since 2012, and we work in the brands you researched, from basic Schlage deadbolts to Medeco and Mul-T-Lock high-security systems. If you need a rekey, a car key, or an emergency unlock, call us at (855) 382-0943 and we’ll walk you through it.
Why Mercer Island Homes Are Different
Mercer Island is an island in Lake Washington, and that one fact shapes nearly every lock job we do here. The marine climate means wet winters and salt-laden air off the lake accelerate corrosion in exterior locks, deadbolts, and gate hardware far faster than you’d see in Bellevue or Newcastle. We regularly pull cylinders from waterfront homes on the West Mercer Way corridor that are pitted and sticking after only a few seasons. Annual lubrication and hardware replacement are recurring calls for us here, not occasional ones.
The housing stock compounds it. Most Mercer Island homes were built between the 1960s and 1990s, and many still carry the original builder-grade Kwikset or Weiser knobs and deadbolts installed decades ago. Those locks fail in predictable ways: wafers wear down, springs corrode, keys snap in cylinders. Newer custom rebuilds and view properties along the Lake Washington shoreline add another layer – gates, pool houses, detached garages, and outbuildings, each with their own hardware. There are also plenty of long driveways and wooded setbacks, which means our techs need to prepare for everything from simple knob rekeys to multi-point gate systems.
Traffic deserves a mention too. Every job on Mercer Island funnels through I-90 and then onto Island Crest Way or West Mercer Way, the two practical north-south routes. We batch island jobs around the floating bridge’s backup patterns because that’s the difference between arriving in 30 minutes and arriving in an hour. No mainland city in our service area has that same constraint.
Styles & brands we work with







Our Main Mercer Island Services
Most Mercer Island homeowners call us for one of two things: a car key that’s gone missing or a lockout that can’t wait. Both are urgent, both are common here, and both have dedicated pages with full pricing and local detail.
Car Key Replacement in Mercer Island
Losing a car key on Mercer Island usually means you’re parked at the Mercer Island Town Center or the North End QFC lot, and you need a solution before the bridge traffic picks up. We handle vehicle lockouts and lost-key replacement without subcontracting, covering transponder programming, key fobs, and traditional metal keys. The island’s commercial pockets are limited, so most of these calls happen in residential driveways or at the few retail areas. For full details on what we cover and what it costs, see our Car Key Replacement in Mercer Island page.

Emergency Locksmith in Mercer Island
An emergency lockout on Mercer Island feels different than one downtown: you’re likely at a house set back from the street behind a gate or a long driveway, and the nearest help is across a floating bridge. We built emergency response into our core service model, not as an upsell. Whether you’re locked out at midnight on Island Crest Way or facing a failed deadbolt before a work trip, we dispatch a tech who knows the island’s roads and tackles the job directly. Read more on our Emergency Locksmith in Mercer Island page.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Rekey Locks in Mercer Island
Rekeying is the smart play for a Mercer Island home that’s changing hands or carrying keys you can’t account for. Instead of replacing every lock, we swap the internal pins so old keys stop working and new keys take over. On an island where many homes still ride on 1960s and 1970s original hardware, rekeying gives you new security without the expense of new hardware. For a deeper look at the process and your options, see our main Rekey Locks page.
Lock Rekey
Signs you need it
You moved into a Mercer Island home and the previous owner, a cleaner, a contractor, or a neighbor still has keys you can’t verify.
What it costs in Mercer Island
Lock rekeying on Mercer Island typically runs $20 to $50 per cylinder for labor, plus a service call fee that reflects bridge traffic and island routing.
How we do it
We disassemble the lock, swap the key pins to match a new key, reassemble, and test every cylinder against the old key to confirm it no longer turns.
Rekey Door Lock
Signs you need it
A key snapped in your front door deadbolt, or you’ve handed out too many copies over the years and lost track of who holds them.
What it costs in Mercer Island
Expect $55 to $100 per door for a standard knob-and-deadbolt rekey, with high-security cylinders running higher where the home uses Medeco or Abloy hardware.
How we do it
We extract any broken key, clean and lubricate the cylinder, replace the pins for a fresh key, and test the deadbolt throw behind the door to make sure it seats fully.
Keyed Alike
Signs you need it
Your Mercer Island front door, back door, garage, and shed each take a different key, and you’re tired of carrying a ring full of near-identical Kwiksets.
What it costs in Mercer Island
Keyed-alike service is priced per cylinder at $20 to $50 each, so a four-lock home typically lands between $80 and $200 plus the trip fee.
How we do it
We rekey all the cylinders to the same key profile, confirm each one turns smoothly, and label the new key set so you know exactly how many copies you’re working with.
What Rekey Locks Costs in Mercer Island
| Item | Typical range in Mercer Island |
|---|---|
| Per-cylinder rekey (labor) | $20 – $50 |
| Standard knob-and-deadbolt door rekey | $55 – $100 |
| High-security cylinder rekey (Medeco, Abloy) | $75 – $150 |
Prices on the island run slightly higher than on the mainland because of the I-90 bottleneck and the age of the hardware we’re working with. What pushes cost up here is corrosion: a salt-damaged cylinder can need extraction, cleaning, and sometimes replacement before we can even rekey it.
How long does a rekey take on Mercer Island?
Most Mercer Island rekeys take 20 to 40 minutes on site once we arrive. High-security cylinders, multiple outbuildings, or badly corroded locks can add time, but we complete nearly every residential rekey in a single visit. Call (855) 382-0943 for a firm estimate.
Should I rekey or replace my Mercer Island locks?
Rekey if the hardware still functions and you just need old keys neutralized. Replace if cylinders are corroded, deadbolts wobble, or the faceplates are failing. We’ll assess honestly and quote both options before starting, so you pay exactly what’s on the invoice.
Brands We Service in Mercer Island
We carry parts and pins for Schlage, Kwikset, Sargent, and Abloy, among others, stocked in our vans so most Mercer Island jobs finish same day. High-security brands most locksmiths aren’t equipped to touch are standard for us, not a special order. See our brands for the full list of what we service.
Pricing for Locksmith in Mercer Island, WA
| Service | Typical range in Mercer Island |
|---|---|
| Lock rekey (per cylinder) | $20 – $50 |
| Rekey door lock (knob and deadbolt) | $55 – $100 |
| High-security rekey (Medeco, Abloy) | $75 – $150 |
| Keyed alike (per cylinder) | $20 – $50 |
| Car key replacement (basic metal key) | $80 – $150 |
| Car key replacement (transponder or fob) | $150 – $400 |
| Emergency lockout (residential) | $75 – $180 |
| Emergency lockout (vehicle) | $60 – $120 |
| Deadbolt installation | $90 – $180 |
| Lock replacement (standard) | $80 – $200 |
| High-security lock installation | $200 – $500 |
Two things push Mercer Island pricing upward: the I-90 bridge traffic that adds drive time to every job, and the age of the island’s locks, which often means fighting corrosion before we can even begin. That said, the price we quote on the phone is the price on the invoice. No call-out surcharge added on arrival, no bait pricing. You’ll know the full amount before anyone is dispatched.
Neighborhoods We Serve in Mercer Island
We cover every corner of Mercer Island, from the Town Center condos to the waterfront estates off West Mercer Way. Our techs know the island’s road patterns well enough to give you an honest arrival window, not a generic one. Here’s a representative sample of where we work:
- Mercer Island Town Center
- North End (near the QFC and I-90 interchange)
- West Mercer Way corridor
- Island Crest Way neighborhoods
- East Mercer waterfront
Service Area – Cities Near Mercer Island
Lodestar Locksmith works throughout the Eastside and greater King County. If you’re in a neighboring community, we handle the same rekey, lockout, and car key work with the same upfront pricing. We regularly serve Eastgate, WA, Newcastle, WA, Wilburton, WA, and Bellevue, WA. Call (855) 382-0943 and we’ll tell you exactly when a tech can reach you.
Serving Mercer Island, WA — Our Local Coverage Area
We’re based in the Mercer Island area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Locksmith in Mercer Island
We serve Mercer Island regularly and have done so since 2012. Our techs are familiar with the island’s roads and batch jobs around I-90 bridge traffic to keep response windows realistic. The trip fee is quoted upfront and never added as a surprise on arrival.
Most residential rekeys and lock replacements don’t require a permit or HOA approval. For homes with gates or shared entry points where an HOA does have rules, we’ll rekey exactly what you’re authorized to change and document the work so you have a record for the association.
Yes. Weekend move-ins are some of our most common Mercer Island calls, and we schedule around them deliberately. If you’re closing on a home on West Mercer Way or near the Town Center, call (855) 382-0943 before closing day and we’ll line up a time so your locks are rekeyed the day you get the keys.
If you need a locksmith in Mercer Island who knows the island’s homes, hardware, and traffic patterns, call Lodestar Locksmith at (855) 382-0943. Estimates are free, and the price you hear is the price you pay.
What happens when you call
- 1A real person answersNo phone trees — talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Mercer Island Customers Say
"Commercial job, panic bar and a master key system for a small office. Clean install and clear documentation of which key opens what."
— Daniela Salazar"Told me over the phone that what I needed was a five dollar part from the hardware store, not a locksmith. I called him back a month later for real work because of that."
— Megan Quinn"Key snapped off in the deadbolt. He extracted it without damaging the cylinder, which I did not think was going to be possible."
— Paul Pruitt