How do I tighten a door closer?

Look for small adjustment screws, called valves, on the closer body: typically a sweep valve for the main swing and a latch valve for the last few inches. Turn in small steps, try the door each time, and never back a valve all the way out. A closer that weeps oil or keeps banging after adjustment is worn out, and a pro should replace it.

Can the glass in a commercial door be replaced without a new door?

In most cases. An aluminum-framed door holds its light behind removable stops, so the pro orders a matching tempered or laminated piece and sets it back in the existing door. A frameless door needs a whole new panel, with the old fittings reused if they're in good order. The door only has to go when the frame itself is bent or damaged.

Who can service an automatic door?

A technician who works on door operators, which not every glazier does. Tell us the door is automatic, whether it slides or swings and what it's doing, and the request goes to a commercial door pro who works on operators, where one covers your area. Your property manager may already have a service arrangement.

What goes into the cost of new glass for a commercial door?

It depends on the size of the light, tempered or laminated glass, and whether the door is framed or frameless. Timing and access count too, and a board-up adds a visit. A photo and rough measurements let the pro give a written quote; the storefront glass page covers the display panes beside it.

Commercial doors · Markham

When an office or plaza glass door won't close, latch or lock

An entrance that slams, drifts open, drags or won't lock at night usually has a hardware problem, not a door problem. A worn closer, loose pivot or tired lock can be adjusted or replaced, and a cracked light can often be reglazed in the same door. We connect you with an independent commercial door and glass pro who works on office, plaza and lobby entrances and quotes in writing. It's part of our commercial glass services.

Closers, pivots, hinges and locks
New glass in a sound door
Written quotes from commercial pros

Get a free quote 905-201-8120

Paired aluminum doors with sidelights: closers overhead, pulls on the lock stiles.

What's going wrong

Common failures: closers, pivots, hinges and locks

Slams, or won't close

The closer controls both. Its speed can usually be adjusted, but one that leaks oil or has lost its power needs replacing.

Drags on the latch side

Worn hinges, a loose pivot or a door that has dropped in its frame. Left alone, it scrapes the threshold and strains the closer.

Won't latch or lock

The latch and strike may be out of line, or the lock is worn. On a frameless door, a loose patch fitting, the clamp holding hardware to the glass, does the same.

Line drawing of an aluminum-framed glass swing door with callouts at the overhead closer, hinges, lock, threshold and frame — Where wear shows up on a swing door. Illustration.

Door glass

Replacing glass in an aluminum or frameless door

An aluminum-framed door holds its glass in with removable stops. If the frame is square, the light is replaced on its own. Door glass is safety glass, so the replacement is made to your measurements rather than cut on site.

A frameless door is the glass: pivots, patch fittings and pulls clamp onto a tempered panel, so a crack means a new panel with the same hole pattern and sound hardware moved across. Interior office doors are on the glass partitions page; house doors and sidelights under door glass.

Keeping the door usable

Minimising downtime for offices and shops

In an office park off Highway 404 or 407, staff and visitors still need a way in; in a plaza unit, the door is the shop.

Describe it with photos
The whole entrance, a close-up of the closer or damage, and what the door does, so the pro can bring the right part the first time.
Share your hours and rules
Say when the building is quiet and what the property manager requires.
If the glass breaks after hours
Ask for a board-up so the building can be locked. We pass that request on; it isn't a guaranteed call-out.

Automatic doors

Automatic and accessible entrances

Sliding and swing operators, push-button openers and their sensors are specialist equipment. Some commercial glaziers service them; others handle only glass and manual hardware. Say the door is automatic, and whether it slides or swings, so it goes to a pro who services operators. Tell the property manager too, since the building may have a service arrangement.

Repair or replace

When a new door system is the better call

A closer or a new light in a sound door is usually the sensible first step. A new door and frame earn their cost once the frame has been knocked out of square, when parts for an older system are no longer made, or when a new tenant needs a wider opening or an automatic operator. Changing an opening's size is not a like-for-like swap; the City's building permit guidance explains when a permit applies.

Pricing factors

What a commercial door quote depends on

Expect questions about:

Which part failed: closer, pivot, hinge, lock or glass
Framed or frameless, single or paired
Tempered or laminated glass, and its size
An automatic operator
Work outside business hours

Photos and rough door dimensions help a pro quote before visiting.

Request a commercial door quote

Free quotes from independent commercial door pros.

Questions

Commercial door questions

Explore your options

Commercial door pros we work with cover entrances across Markham and next door, including Markham Centre, Milliken Mills, Buttonville, Cornell and Richmond Hill.

Describe the entrance and the problem

Say whether the door has a frame, whether it opens by itself, and what it does wrong. Add a photo of the entrance and the closer. We pass it to a commercial door pro, who follows up with a written quote, and if an adjustment is all it needs, they'll say so.