Door closers help doors shut smoothly and consistently, improving safety and security in homes and commercial spaces. By controlling swing speed and latching force, they prevent slams, protect frames, and keep conditioned air inside. You’ll find options for storefronts, offices, schools, healthcare facilities, multi-family buildings, and residential entryways.

Common types include surface-mounted overhead closers with regular arm, parallel arm, or top-jamb mounting; concealed closers in the door or frame; floor-spring closers for glass and pivot doors; pneumatic units for storm doors; and automatic door operators to assist users and meet accessibility goals.

Look for adjustable sweep and latch speed, backcheck to cushion opening against wind or abuse, delayed action for carts and strollers, and optional hold-open where code permits. Power size can be fixed or adjustable (often sizes 1–6). Fire-rated models carry listings and omit hold-open features. Many closers are non-handed and offer slim covers and architectural finishes to match hardware.

Selection tips: match power to door width and weight, consider traffic levels, and choose mounting that suits headers or glass rails. Exterior doors benefit from heavy-duty arms and cold-weather fluid. For barrier-free operation, target low opening force and pair with levers and thresholds that reduce resistance. In coastal or corrosive environments, specify stainless fasteners and rust-resistant finishes.

Installation is with templates: verify hinge and latch alignment, use drop plates or brackets on stile doors, through-bolt where possible, and carefully adjust speeds gradually. Test both swing directions and let the unit reach room temperature before final tuning.

Routine maintenance keeps performance consistent: inspect for loose fasteners, worn shoes, and oil leaks; clean the arm and cover; and make seasonal tweaks for temperature changes. Key terms: door closers, commercial door closer, hydraulic door closer, surface mounted door closer, concealed door closer, fire-rated door closer, ADA compliant door closer, backcheck, latch speed.