Locks and security

Security screen doors

Also called: security screens, metal security screens

Quick answer: a security screen door is a sliding screen built to keep people out, not just insects. It has a strong metal frame and a tough metal mesh that resists cutting and pushing. You can leave the glass door open for air while the screen stays locked.

The mesh
Woven stainless steel or perforated metal, not the fiberglass mesh a knife cuts through easily.

The frame
Heavier metal sections than a standard screen, with corners that do not twist apart under force.

Its own lock
Most have a keyed lock, so the screen stays secure while the glass door behind it is open.
How the mesh is held in the frame

Insect screenSecurity screen1234

  1. Spline, a rubber cord that presses the mesh into a groove
  2. Standard frame, thin rolled aluminum
  3. Clamp strip, screwed down in many security screens so the mesh cannot pull out
  4. Security frame, a thicker, heavier section
A spline-held mesh can be pushed out of its groove. A clamped mesh stays put.

From first sign to fix

A security screen is heavier than an insect screen, so small problems grow faster. Work through them in this order.

  1. The screen drags or squeaks
    Vacuum the screen track and adjust the roller screws.

    Safe to do yourself

  2. It jumps off the track
    Lift it back onto the track and check the rollers.

    Take care: two people

  3. The lock will not catch
    The rollers or the keeper need adjusting so the lock lines up.

    Call a pro

  4. Bent frame or damaged mesh
    Repair or replace the screen: a bent frame no longer locks tight.

    Call a pro

Fix it yourself or call a pro

  • Safe yourselfClean the screen track and wash the mesh with a soft brush and water.
  • Take careLifting a heavy security screen back onto its track: two people, and keep fingers clear of the frame edges.
  • Call a proA lock that will not catch, a bent frame, or fitting a new security screen.

Step by step: how to put a screen door back on track.

Dark bronze security screen door closed across a sliding patio door, with a keyed lock on its frame
AI image

Which screen is on your door

Insect screen
Light, easy to rescreen, good airflow
The mesh cuts or pushes out easily, no real security
Pet screen
Thick coated mesh stands up to claws and paws
Still easy to cut, no lock to speak of
Security screen
Metal mesh and frame resist cutting and pushing, with its own lock
Heavier, and usually the costlier option

A security screen adds a layer, but the glass door’s own lock still matters. See which patio doors are most secure.

Screen off track or not locking?

Select Sliding Doors handles sliding door repair, including screens and locks, across Dallas-Fort Worth. Mon to Sat, 7am to 10pm.

Questions people ask

Can I add a security screen to my sliding patio door?

Usually, if the door already has a screen track. The screen is made to fit the opening, and the track has to be straight for the lock to line up.

Do security screens block the view or the breeze?

Fine woven stainless mesh lets air through and keeps a fairly clear view. Perforated metal blocks more of the view but adds privacy.

Will a security screen stop a break-in?

It slows one down and adds a locked layer. It works best together with a strong lock and an anti-lift device on the glass door itself.

Related terms

Photo: AI image. Diagram: Select Sliding Doors.

Get in touch with us

Slide on in!

Contact us and schedule your FREE in-house estimation!