Charleston & Summerville, SC
Sagging doors, slamming doors, closers that leak oil or won't latch - our licensed locksmiths adjust, rebuild, and replace door closers on storefronts, offices, and homes across the Lowcountry.
A door closer is a small hydraulic device doing a big job - controlling how a heavy door swings shut, thousands of times a week. When it fails, doors slam, latch bolts miss the strike, and fire-rated doors stop meeting code. We fix that fast, and we do it right.
A fully licensed and insured local locksmith covering Charleston, Summerville, and the surrounding areas. You get a credentialed pro at your door - not a handyman guessing at hydraulic tension.
The Kadosh family answers, quotes, and does the work. No call-center runaround, and the person who diagnoses your closer is the person who adjusts it.
Many closers only need a spring-tension or sweep-speed adjustment - not a $200 replacement. We tell you which, and the estimate is free.
BBB accredited, ALOA member, and Mul-T-Lock and Lockly certified - so from a residential storm-door closer to a fire-rated overhead unit, we work to the manufacturer's spec.
Sizing and mounting the correct closer for the door's weight and width - regular arm, parallel arm, or hold-open. Includes backplates and reinforcement where the frame needs it.
Dialing in the closing speed, latch speed, and backcheck valves so the door shuts firmly, latches every time, and never slams on fingers.
An oily streak down the door means the seal has failed and the closer is losing hydraulic fluid. We replace units that can't be resealed and rebuild those that can.
Closers on fire-rated doors must self-close and latch. We set opening force and closing time to keep exits code-compliant and accessible.
Service for surface-mounted, concealed-in-frame, and floor-spring closers on aluminum storefront and glass doors.
Hold-open arms and integration with existing automatic operators, so high-traffic doors behave predictably.
Tell us the door - home, office, storefront, fire-rated - and the symptom: slamming, not latching, leaking, or stuck open.
We check arm type, mounting, spring tension, and hydraulic condition, then quote a repair or a correctly sized replacement.
Most adjustments and closer swaps are done the same visit, with the frame reinforced where the old mount was pulling loose.
We open and close the door through its full cycle, confirm clean latching, and set speeds so it's safe for kids and busy foot traffic.
Most surface closers have two small hex valves on the end cap - one controls the main sweep speed, the other the final latch speed. If a door slams the last few inches, the latch valve needs a quarter-turn clockwise. If it drifts and never latches, the sweep is too slow or the spring tension is too low. Turn valves only a small amount at a time - a full turn out can dump the hydraulic fluid entirely. And if you see oil on the door or floor, don't adjust it: the seal is gone and the closer needs replacing.
Accredited business with a track record of resolved, satisfied customers.
Member of the Associated Locksmiths of America - held to industry standards.
Factory-certified on the hardware we install and service.
Fully licensed and insured across Charleston and surrounding areas.
The Kadosh family - the same crew from quote to completed job.
No-cost, no-pressure assessment before any work begins.
"Our office door had been slamming for months and the closer was leaking oil. They swapped it, sized it right, and now it closes soft and latches every time. Same-day too."
- Danielle R., West Ashley
"Storefront glass door on King Street wouldn't stay shut in the heat. They adjusted the closer and reinforced the mount. Honest quote, no upsell."
- Marcus T., Charleston
"Needed our fire door closer set to code before an inspection. The Kadosh team knew exactly what the inspector wanted. Passed first try."
- Priya S., Summerville
It depends on the failure. Slamming, drifting, or a stuck hold-open is usually an adjustment or arm fix. But if the body is leaking hydraulic fluid, the seals have failed and no adjustment will hold - that one needs replacing. We diagnose it on site and tell you honestly which it is.
A simple adjustment is inexpensive; a full replacement depends on the door's weight, the arm type, and whether the frame needs reinforcement. We give a free estimate before any work so there are no surprises.
Slamming means the latch-speed valve or spring tension is off; not latching means the closer is too weak to push the door the final inch into the strike. Both are common and usually fixable in one visit - we tune the valves and check the strike alignment.
Yes. Fire-rated doors must self-close and positively latch to meet code. We set the closing force and speed to spec and confirm the door latches on every cycle - important before a fire-marshal or building inspection.
Charleston, Summerville, and the surrounding Lowcountry - homes, offices, and commercial storefronts. We're a licensed and insured, family-run team based locally.
Free estimate, licensed and insured, same-day service across Charleston & Summerville.
Charleston Locksmith · Serving Charleston & Summerville, SC · (843) 380-5647 · charlestonlocksmith.com
