Non-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.
Medeco Change Door Locks in Los Angeles: What to Know First
We provide independent Medeco change door locks in Los Angeles, typically completing residential jobs same-day and most commercial jobs within 24 hours. A standard Medeco deadbolt change runs $280 – $420 including the new cylinder and labor, and we put that exact price in writing before anyone touches your door. This page is for homeowners in neighborhoods like Palms, Silver Lake, and the Hollywood Hills who already invested in Medeco’s pick-resistant, drill-resistant hardware and need it changed properly without voiding what protection they have left. Call (910) 714-4287 – a live person answers, even at 2 a.m.
How Medeco Products Fail – and How We Fix Them
- Medeco Maxum 11*603 deadbolts with sticky tailpiece rotation. In Los Angeles, the dry Santa Ana seasons followed by humid winter weeks cause the zinc alloy tailpiece to expand and contract slightly. The symptom is a key that turns smoothly but a bolt that drags or hangs halfway. We replace the tailpiece with an OEM-grade brass component and re-lubricate the cam path with Houdini Lock Lube, not WD-40, which gums up Medeco’s tight tolerances.
- Medeco Original (M3) cylinders with sheared sidebar fingers. The M3’s angled sidebar cuts are its security core, but aggressive key turning when the bolt is bound against a misaligned strike plate shears the fingers. You’ll feel sudden looseness in the keyway and the lock may open without the sidebar engaging. We swap the cylinder core and realign the strike plate – fixing only the cylinder without addressing the alignment fails again in six months.
- Medeco X4 residential knobs with wobbly keyways from key duplication drift. The X4 uses a sidebar plus pin-tumbler hybrid. After years of copies made at hardware stores with slightly off-spec blanks, the keyway walls wear and the sidebar no longer seats flush. The lock feels “mushy.” We change the cylinder and cut new keys on Medeco’s proprietary key blanks – aftermarket blanks from generic suppliers won’t activate the sidebar properly.
- Medeco Biaxial cylinders in older Los Angeles apartment buildings with brass buildup in the pin chambers. Pre-2010 Biaxial pins use a softer brass alloy that sheds microscopic debris. In buildings near the coast – Santa Monica, Venice, Marina del Rey – salt air accelerates oxidation and the chambers clog. The key sticks at the same depth every time. We ultrasonic-clean the chambers, but if the wear is advanced, a full cylinder change is the lasting fix.
- Medeco Logic (electromechanical) with dead battery masking as cylinder failure. The Logic series powers audit-trail and time-based access with a battery pack behind the cylinder. When voltage drops, the solenoid won’t retract and the key turns freely with no open. Los Angeles customers often assume the cylinder failed and call for a change. We test voltage first; a battery swap is $85, a cylinder change you didn’t need is $340. We tell you which before we drive.
Our Medeco Change Door Locks Process
- 1
Call and describe the lock. We ask for the Medeco series name, approximate install year, and symptoms. Perry Osgood or a senior tech answers – no call center script.
- 2
Photo verification and written price. You text a photo of the lock face and key bow. We confirm the model, quote the exact price including parts and labor, and email it back. That number matches the invoice.
- 3
Technician dispatch with identity confirmation. Under The Threshold Standard, you receive the technician’s name, photo, and ETA by text. They arrive in a marked Dunmore Locksmith uniform, show photo ID at your door, and match the photo you received. Anyone else arrives, the visit is free.
- 4
On-site diagnosis and parts decision. We confirm the failure mode, then source OEM Medeco cylinders or, when appropriate, quality aftermarket equivalents from GMS or Ilco that maintain sidebar and pin-tumbler tolerances. We explain the trade-off: OEM preserves any remaining warranty, aftermarket saves 15 – 20% with equivalent function.
- 5
Installation, function test, and key control. We cycle the new cylinder 50 times, test both sides of the door, verify the strike alignment, and register new key codes. You receive all working keys; no “factory extras” stay in our possession.
- 6
Written guarantee and cleanup. The 365-Day Done Right Promise is stamped on your invoice. If the repair fails – sticky operation, keyway drift, anything – we return at no charge. We sweep the work area and leave.
What Medeco Change Door Locks Costs in Los Angeles
These are real ranges for jobs we’ve done in Los Angeles neighborhoods from the Valley to the Westside:
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Medeco Maxum deadbolt cylinder change (residential) | $280 – $340 | OEM vs. aftermarket cylinder; strike plate realignment needed |
| Medeco M3 high-security cylinder change | $320 – $420 | Sidebar finger replacement; key registration with Medeco |
| Medeco X4 knob/lever cylinder change | $240 – $310 | Keyway condition; number of duplicate keys to cut |
| Medeco Logic battery + diagnostic (if not cylinder) | $85 – $120 | Battery type; audit-trail download if requested |
| Commercial Medeco master key system cylinder change | $380 – $550 | System hierarchy level; same-day vs. scheduled |
We do not add a call-out surcharge. The price quoted on the phone is the price on the invoice. For commercial master key and access control work, we survey first and deliver a flat per-lock written scope – no hourly padding.
Call (910) 714-4287 for an exact quote. Estimates are free.
Why Los Angeles Homeowners Call Dunmore Locksmith for Medeco Work
Medeco owners already paid for security that actually works. They don’t want a technician learning on their lock. Perry Osgood trained on Medeco’s sidebar systems at Los Angeles Trade-Technical College and has changed hundreds across the city – from rent-controlled fourplexes in Palms to production offices in the Arts District. Our techs carry OEM and quality aftermarket inventory, so the job finishes in one visit. If your Medeco is beyond cost-effective repair, we also install and service Schlage, Kwikset, Mul-T-Lock, and Abloy – we’ll tell you honestly when another brand suits your situation better. The 365-Day Done Right Promise covers every change: if the cylinder binds, the key sticks, or the sidebar fails to engage, we return and make it right at no charge. A locked door should only stop the wrong person.
FAQs
Using an independent Medeco service provider does not automatically void your warranty, but installing non-OEM parts or improper rekeying can. We use OEM cylinders when warranty preservation matters, and we document the work so you have a paper trail. Call (910) 714-4287 if you need warranty guidance before booking.
Most residential Medeco changes happen same-day if you call before 3 p.m.; commercial jobs and master key systems typically schedule within 24 hours. We stock Maxum, M3, and X4 cylinders for common finishes. Call (910) 714-4287 to check current availability for your specific model.
Repair makes sense for sticky operation caused by lubrication failure or minor debris; replacement is the better value when the sidebar fingers are sheared, the keyway is wallowed out, or the pin chambers show brass buildup from years of wear. We diagnose on-site and quote both paths honestly.
We stock common Medeco residential cylinders and key blanks. Specialty finishes – oil-rubbed bronze, antique brass – and commercial Logic components sometimes require next-day delivery from Medeco’s distribution. We tell you before we dispatch if your job needs a second trip.
Yes. The price we quote after seeing your lock photo is the price on the invoice. If we discover additional damage – a split door frame, a corroded strike box – we stop, show you, and get approval before continuing. No after-the-fact totals. Call (910) 714-4287 for your written estimate.
Ready to get your Medeco lock changed right? Call (910) 714-4287 now. A live person will answer, gather your lock details, and send you a written price before anyone heads your way. Estimates are free, and there’s no obligation until you approve the number.
Written by Perry Osgood, Owner & Lead Technician, Dunmore Locksmith at Dunmore Locksmith, serving Los Angeles and nearby areas.






