Refactor

Strata Repairs and Maintenance

Lesson 10: Hinges, closers and sticking doors

Goal: make doors swing, close and latch properly, the most common hardware job in any strata building.

Common doors in a strata building work hard: hundreds of openings a day, trolleys, prams, removalists, wind. Most door complaints come down to three things: hinges, closers and doors that stick.

Sagging doors and loose hinges

When a door starts to scrape the floor or the latch misses the strike, look at the hinges first. The top hinge carries most of the door’s weight and pulls away from the frame over time.

  1. Open the door and lift the handle end. If the hinge moves, the screws are loose.
  2. Tighten every hinge screw. If one spins without tightening, the hole is stripped.
  3. Replace stripped or short screws on the frame side with 65 mm screws (or longer), so they reach the wall stud behind the frame. One long screw in the top hinge pulls the whole door back up.
  4. For a stripped hole in the door, glue in a timber dowel or golf tee, trim it flush, drill a pilot hole and re-screw.
  5. If the door rubs on the latch side at the top, a thin cardboard packer behind the bottom hinge (or a deeper screw in the top) changes the angle. Small changes go a long way.
A tall grey metal butt hinge on the edge of a door frame, with three screws visible in each leaf.
A butt hinge. When the door sags, the screws in the top hinge's frame leaf are usually the culprit. Photo: Tobias ToMar Maier, CC0

Squeaky hinges: lift the pin partly out, wipe it, and add a little light oil or a dry PTFE spray. Don’t use a heavy grease that collects dust.

Door closers

An overhead closer is a spring and an oil-filled piston. Valves on the body control how fast oil passes, which sets how fast the door closes in each part of its swing.

A door swing seen from above, from the hinge to closed, in three coloured zones. Backcheck (BC) cushions the door if it is flung open past about 75 degrees. Sweep (S) controls most of the closing swing, about 5 to 7 seconds from 90 degrees. Latch speed (L) controls the last 10 to 15 degrees, a firm push so the latch clicks shut. Each zone has its own valve; clockwise slows, anticlockwise speeds up. Never back a valve right out.
The three zones of a door closer. Valve markings vary by brand. Tap to enlarge.

To adjust:

  1. Find the valves: small screws on the end or side of the closer body, often marked S, L and BC (or 1, 2 and 3). The manufacturer’s sheet, often printed under the cover, shows which is which.
  2. Open the door to 90 degrees and time it closing.
  3. Turn the sweep valve a quarter turn at a time until the door takes about 5 to 7 seconds to reach the last 10 to 15 degrees.
  4. Adjust the latch valve so the door speeds up enough at the end to push the latch home, without slamming.
  5. Check the backcheck stops the door hitting the wall if someone throws it open.

Manufacturer says: never unscrew a valve more than the instructions allow. Backed right out, it leaks oil and the closer is finished. A closer that leaks oil, has a bent arm or can’t be adjusted needs replacing.

A silver overhead door closer fixed to the top of a red door, with its arm connected to a bracket on the frame.
An overhead closer with its arm to the frame. Its adjusting valves are usually on the end of the body. Photo: Santeri Viinamäki, CC BY-SA 4.0

Practitioner tip: in windy buildings, external doors change with the weather. Set them on a calm day, check on a windy one, and don’t fight the wind with a faster closer: it just slams the door on people.

Fire doors: what you can and can’t do

Stairwell doors and apartment front doors are usually fire doors (Lesson 9). The law: they must close and latch by themselves from any open position, and the parts on them (hinges, closer, lock, seals) are part of the tested and certified door.

You can Leave to a fire door specialist
Tighten hinge and closer screws Replace a closer, hinge or lock
Adjust closer speed so it closes and latches fully Plane, cut or drill the door
Report a damaged seal, gap or missing tag Replace seals, add a kick plate, fix a hole in the door
Remove door wedges, report doors held open Fit hold-open devices

In many states fire doors must be inspected by a qualified person every six months to Australian Standard AS 1851. If your building has a fire services contractor, report fire door defects to them through the strata manager, and they fix them.

Door stops and kick plates

A lever through the plasterboard (Lesson 5) or a door handle denting the wall behind it is a sign a door stop is missing. Skirting-mounted stops are easy: drill a pilot hole into the skirting at the point the door would hit, and screw the stop in. Floor stops on concrete need a masonry bit and plug.

Kick plates (metal plates across the bottom of a door) protect doors that get pushed by feet and trolleys. On ordinary doors, screw them on. On fire doors, only approved kick plates within the door’s certification can be fitted.

Sticking doors

A timber door that sticks has usually either dropped (fix the hinges first, above) or swelled with moisture.

  1. Find where it rubs: close it on a sheet of paper, or look for worn paint.
  2. Tighten the hinges. Many sticking doors are fixed here.
  3. If it still sticks, mark the tight spot, take the door off its hinges, and plane the edge (towards the corner, not off it, so you don’t split the end grain). Take off a little at a time and test.
  4. Seal the bare timber straight away: an unpainted edge soaks up moisture and swells again. Paint the top and bottom edges too.

Never plane a fire door: it changes its fire rating.

A metal hand plane resting on a piece of pale timber surrounded by curls of wood shavings.
A hand plane. A few passes on the edge of a sticking timber door, then seal the bare wood. Photo: Phil Gradwell, CC BY 2.0

At Jacaranda Court

Residents complain the stairwell B door on level 1 slams. You time it: 2 seconds from fully open. It’s a fire door with a tag, so you don’t touch the hardware itself, only the valves. Two quarter turns of the sweep valve clockwise and one of the latch, and it closes in 6 seconds and still latches every time. You test it ten times, write it on the work order, and ask the fire services contractor to check it at the next six-monthly inspection.

On the job 10

Time every closer on your building’s common doors from 90 degrees. List any that slam, any that don’t latch, and any fire door wedged open. Fix the ones you can; report the rest.

Sources

Quick quiz

Pick an answer for each question. Nothing is recorded.

  1. A door has dropped and now scrapes the floor on the latch side. The first fix to try?
    Show answer

    Answer: Tighten the top hinge, replacing short screws with long ones into the frame. Most sagging comes from a loose top hinge. Long screws through the hinge into the wall stud usually pull it back.

  2. A door closer slams the door shut. Which valve do you turn, and which way?
    Show answer

    Answer: Latch or sweep speed, clockwise to slow it. Sweep controls most of the swing and latch the last few degrees. Clockwise slows the door; turn in small steps.

  3. Can you adjust the closer on a stairwell fire door?
    Show answer

    Answer: Yes, adjusting speed is maintenance, but the door must still close and latch fully by itself, and replacement parts must be approved. Adjusting a closer so the door closes properly is routine. Replacing parts or changing the door is fire door work for a specialist.

General education, not trade or legal advice. Licence limits, asbestos rules and window safety laws differ by state and change, so check your regulator before you quote or start. If a job involves electricity, plumbing, gas, waterproofing, fire doors or anything you think may contain asbestos, stop and get the right licensed trade.

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