

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The THERMWELL SB36H is a heavy-duty aluminum brush door sweep designed to seal the gap at the bottom of exterior and interior doors. The extruded aluminum body holds a dense brush insert that blocks drafts, dust, insects, and light infiltration without impeding door operation. At 2 inches wide and 36 inches long, it fits most standard residential and light commercial door widths. Licensed contractors and building maintenance professionals install this component as part of weatherization and energy-efficiency work. The all-aluminum construction resists corrosion and holds up to repeated door contact in high-traffic applications.
The SB36H is suited for residential and light commercial installations where bottom-of-door sealing is required. Typical applications include exterior entry doors, utility room doors, and garage access doors where draft control, pest exclusion, and dust reduction are priorities. The 36-inch length accommodates standard door widths and can be cut to fit narrower applications. It is commonly specified on weatherization projects and tenant improvement work where air sealing at door thresholds is part of scope.
Designed as an OEM-style replacement or new-installation door sweep for standard residential and light commercial door bottoms requiring a brush-style seal.
Installation is typically performed by general contractors, carpenters, or maintenance technicians using basic hand tools. Position the sweep flush against the door bottom and mark fastener locations before drilling. Verify door clearance with the sweep installed to confirm the door opens and closes without binding. Local building codes and energy codes may specify minimum weatherization requirements for exterior doors.
Thanks for subscribing!
This email has been registered!