Door Closer Repair in Sun Valley, CA

Why does my commercial door slam shut or refuse to close?

A door closer is the cylinder-and-arm unit mounted at the top of a door, and it does one quiet job all day: it pulls the door shut at a controlled speed and lets the latch catch. When that job goes wrong, you notice right away. The door slams so hard the glass rattles. Or it drifts closed so slowly that it hangs an inch open and never latches. Or it stops partway and needs a shove. Each of those means the closer is out of adjustment, worn, or failing, and each one has a different fix.

People call us for a handful of reasons. A door slams and has caught fingers or startled customers. A commercial door won't close all the way, so the shop sits unlatched overnight. A door closes too slowly and lets the air conditioning out the front. Or there is oil on the arm, the door, or the floor underneath. That last one is a leaking door closer, and it is the clearest sign the unit has reached the end of its life. A closer that has leaked will not hold its settings for long, no matter how many times someone turns the valves.

This page covers closers on storefront, office, shop and yard-building doors. If the trouble is the lock or latch rather than the closer, our storefront lock repair page is the better fit. If you're already locked out of a business, go to business lockout help.

What makes a door closer leak, slam, or drag?

Most commercial closers are hydraulic. Inside the body are oil, a spring, and a few small valves that meter how fast the oil moves. The spring supplies the closing force and the oil controls the speed. Because the oil does the controlling, nearly every hydraulic door closer repair comes back to the same short list of causes.

• Valve settings that have drifted. Sweep speed (the main swing), latch speed (the last stretch before the door meets the frame) and, on some models, backcheck (the cushion as the door opens wide) are each set by a small valve. Vibration, years of use and well-meaning staff turning screws they don't understand can all move them.
• Worn seals and a leaking unit. Once oil gets past a seal, the door loses its cushioning. It slams, or it closes unevenly. A closer that has leaked is normally replaced, not repaired.
• A bent arm or loose bracket. If someone has been pulling the door shut by the arm, or the mounting screws have worked loose in an aluminum frame, the geometry changes and the door binds or bounces.
• The wrong size for the door. A closer rated too light for a wide, heavy door will drag and fail to latch. One that is too strong for a light door can slam it.
• A door or frame problem that only looks like a closer problem. A sagging hinge, a swollen wood door, a rubbing threshold, or a latch binding on the strike can all mimic a failed closer.

Can I check anything myself before calling?

A few minutes of looking can save a wasted visit, and it helps us bring the right parts. None of this needs tools.

One caution on adjusting the valves yourself: turn them only a small amount at a time, and never back a valve all the way out. On many closers that lets oil escape, and a unit that was only misadjusted becomes a unit that needs replacing. If you're not sure which valve controls what, leave it for us.

• Open the door about halfway and let go. Watch whether it moves smoothly, speeds up suddenly, or stalls.
• Look for oil on the closer body, the arm, the door face and the floor. Oil means the unit is failing.
• Look at the arm and bracket. A bent arm, a gap at the mounting plate or loose screws are all worth mentioning when you call.
• Lift gently on the handle edge of the door. If it moves up and down, the hinges are worn and the closer is being blamed for something it didn't cause.
• Check the frame edge for rub marks or a tight, shiny spot, which points to a swollen or sagging door.
• Take the wedge or the box out from under a propped door. Holding a door open against its closer for hours is one of the quickest ways to wear one out.

How we handle door closer repair, step by step

Here is how a typical call goes, whether it's a glass storefront door or a steel door on a back office.

1. You call (213) 577-1366 and tell us what the door is doing: slamming, dragging, not latching, leaking, or hanging open. Tell us the door type (glass, aluminum, hollow metal or wood) and roughly how wide and heavy it is. A phone photo of the closer body helps.
2. We send a mobile van. If the door means a business can't lock up, we treat it as urgent and say so when you call.
3. We test the door in operation. We open it, let it go, and watch where it slows, where it slams, and whether the latch catches. Before touching the closer we also check the hinges, frame, threshold, latch and strike for anything fighting it.
4. We inspect the closer itself for oil, a cracked body, a bent arm, loose mounting screws, and the maker's label so we know its size and model.
5. We tell you what we found and whether adjustment, remounting or replacement makes sense, and explain the scope and cost before any work starts. You decide.
6. We do the work. Adjustment means setting sweep and latch speeds and, where the unit has them, backcheck and delayed action. Replacement means removing the old unit, choosing the right size for the door, mounting it correctly for that door (regular arm, parallel arm or top-jamb, depending on the frame), and setting the speeds.
7. We test again, from wide open and from nearly closed, and confirm the door shuts and latches every time. If the door needs hinge, latch or other hardware work beyond the closer, we say so before doing it.

Should the closer be adjusted, repaired, or replaced?

Adjustment is the lighter-cost option and fixes more doors than people expect. If the unit is dry, holds its settings, and the door and frame are square, a few careful turns of the valves and a tightened mounting may be all it needs. A door that slams, or one that closes too slowly with no oil in sight, is a good candidate for plain door closer adjustment.

Replacement is the right call when the closer is leaking, the body is cracked, it won't hold a setting, or the arm and bracket are worn out. A hydraulic closer is a sealed unit, so past adjustment and remounting there is no honest way to repair the body itself. If we recommend door closer replacement, we'll talk through the options: a heavier-duty body for a door with constant traffic, a parallel-arm mounting where the overhead space is tight, or a hold-open arm where a door needs to stay open for deliveries.

Door closer installation on a door that never had one is also routine, for example a back door that keeps getting left ajar. If the door is also getting new exit hardware, read about commercial door hardware and panic bar installation, because the closer, latch and exit device have to work together or the door will fight itself.

What affects the cost of door closer repair in Sun Valley?

We don't put prices on a web page, because one closer call can be very different from the next. What we can do is tell you plainly what moves the cost, so nothing about the quote is a surprise.

• Adjustment versus replacement. Setting the speeds on a healthy closer is a different job from removing a leaking unit and fitting a new one.
• Door size, weight and type. A wide, heavy steel door or a glass storefront door needs a sturdier closer than a light interior office door, and the mounting method differs for glass, aluminum and wood.
• Closer grade and features. Backcheck, delayed action, hold-open arms and heavier-duty bodies all cost more than a basic unit.
• Mounting condition. Stripped screw holes, a damaged frame, or a need for reinforcement add labor.
• Other hardware problems. Worn hinges, a misaligned strike or a tired latch may have to be dealt with for the door to close properly.
• Number of doors. Several closers on one property are usually more economical per door than a single call-out for each.
• Timing. An after-hours emergency call is a different situation from a scheduled daytime visit, and we'll explain how it affects the job when you call.

Door closers around Sun Valley: San Fernando Road, Roscoe and Glenoaks

Sun Valley's working doors take more punishment than most. Along the San Fernando Road industrial corridor there are recyclers, auto businesses and yard operations, and those properties tend to have a small front office, steel service doors and gates. Doors like that get bumped by carts and equipment, collect dust and grit in the arm joints, and are often propped open all day and then released to slam. For the gates and padlocks on those same properties, see gate lock repair.

If you run a shop or office on the Roscoe Boulevard, Glenoaks Boulevard or Sunland Boulevard corridors in ZIP 91352, the pattern is different but familiar. A door opened a few hundred times a day wears its latch speed first, and the owner often finds out at closing time, when the door is sitting a half-inch open. The apartment pockets along Glenoaks and the other major corridors have lobby, laundry and courtyard doors that depend on a closer to self-latch, and a worn closer there leaves a building door unsecured for everyone.

The climate adds its own wrinkles. Hot, dry eastern San Fernando Valley summers can swell wooden doors and frames, which adds drag the closer was never sized for. Seasonal Santa Ana winds carry dust that works into hinges and exterior hardware, and a gust against a door that is standing open can hit the arm hard enough to bend it. Dusty hinges plus a swollen door make a perfectly good closer look weak, which is why we check the swing first and blame the closer second.

Our storefront is at 10740 Wilshire Blvd in Westwood, about 17 miles from Sun Valley, and our mobile vans come to you, including to properties near Hansen Dam and the Shadow Hills edge.

Are there safety or code issues with door closers?

Yes, and they are worth knowing before anyone adjusts a closer. Fire-rated doors are required to close and latch on their own, so a closer on a labeled fire door is not optional and should never be disabled or held open with a wedge. Doors on an accessible route need to open without excessive force, so a closer set too tight is a problem of its own. We are not the code authority, and your building department or fire marshal has the final word on your building, but we set closers with both ideas in mind: the door should close and latch reliably, and a person should still be able to open it easily.

Exit doors add one more point. A closer should never make an exit hard to open in an emergency, and a door with a panic device needs a closer matched to it. If a door that is meant to be an exit won't open easily, call us rather than working around it.

There is a security side as well. A door that doesn't latch is effectively an unlocked door, even if the lock itself is fine. If you're sorting out a business's overall door security after a scare, our commercial locksmith page covers the wider picture.

Why call Wilshire Lock & Key for door closer repair?

We've been in business since 1987, and closers are a trade where that history helps. Older units, odd mountings and doors that have been modified over the decades are everyday work. We have a real storefront at 10740 Wilshire Blvd and mobile service vans, so the work comes out of an actual shop rather than a call center. The phone at (213) 577-1366 is answered 24 hours a day, 7 days a week, year-round, and the company that picks up is the company that comes out. There are no dispatch middlemen in between. David, the owner and lead technician, oversees the work.

California requires locksmith companies to hold a BSIS locksmith company (LCO) license. Whoever you hire for door work, ask for their license number before they start and check it against the state's records.

If you want to know how our vans work, read about our mobile locksmith service. And if you're thinking of pairing new closers with keycard or electronic entry, see access control installation. We'll tell you honestly when a simple adjustment is all a door needs.

More locksmith help in Sun Valley

• Access Control Installation in Sun Valley
• Commercial Door Hardware in Sun Valley
• Commercial Locksmith in Sun Valley
• Master Key System in Sun Valley
• Panic Bar Installation in Sun Valley
• Storefront Lock Repair in Sun Valley
• All services in Sun Valley

Door Closer Repair near Sun Valley

• Pacoima
• North Hollywood
• Burbank
• Arleta
• Panorama City
• Lake View Terrace