Pemko Door Seals, Weatherstripping & Thresholds

How to Choose Pemko Door Seals

Pemko sealing products are designed to improve performance at the door opening—reducing drafts, limiting light and airflow, and helping with sound control. Start by identifying where the gap is: bottom of door, sides/top of the frame, or between paired doors. Door sweeps and automatic door bottoms address gaps at the bottom, while perimeter gasketing seals the jamb and head. Thresholds can provide a stable sealing surface at the sill and improve overall fit for exterior doors.

Buying tips (avoid mistakes):

• Measure first: door width and approximate gap size determine which seal style works best.
  
• Mounting style: surface-applied options are fastest for retrofits; mortised components can look cleaner but require door prep.
  
• Bottom sealing: automatic door bottoms are ideal when you need a tighter seal that drops when the door closes.
  
• Threshold selection: confirm width/height and profile so it fits the opening and provides proper contact with the bottom seal.
  
• Replacement inserts: if you already have a carrier/channel, you may only need the insert rather than a full assembly.
  

Popular Pemko Categories

Automatic Door Bottoms • Door Sweeps • Perimeter Gasketing • Thresholds • Astragals • Replacement Inserts

Pemko FAQs

What’s the difference between a door sweep and an automatic door bottom? A sweep is fixed; an automatic door bottom drops down when the door closes for a tighter seal.

How do I know what size to buy? Measure door width and the gap you’re trying to seal, then match the product’s size range/specs.

Do I need a threshold too? Thresholds create a consistent sealing surface and can improve performance at exterior doors.

Can I replace just the insert? Often yes—if the existing carrier is compatible, replacing only the insert is common maintenance.