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FREQUENTLY ASKED QUESTIONS
What makes Therm-L-Tec cold storage doors different?
We’re not just another door supplier—we’re a veteran‑owned, USA‑made manufacturer with over 50 years in business, committed to performance you can count on. Our cold storage doors feature high‑performance insulation, smart engineering like heated perimeters and air curtains, and rugged construction that outlasts harsh environments. Every detail is designed to reduce thermal loss, cut energy costs, and deliver long‑term value that beats overseas or mass‑produced alternatives.
Do freezer doors need heating, and how does Therm-L-Tec handle this?
Yes. In sub‑zero applications, heat cables around the frame and bottom sweep prevent icing and freezing shut. All Therm-L-Tec freezer doors include this feature—swing models are heated on all four sides.
Which door type should I choose? Swing, sliding, or high‑speed?
Swing/hinged: ideal for low‑traffic areas—simple and robust. Sliding: great for tight spaces and fork-lift access, freeing up floor area. High-speed automated: with adjustable open / closing speeds, perfect for frequent use—rapid open/close cycles, tight seals, and optional air‑curtain integration for maximum efficiency and minimal frost.
How do I measure correctly for a door?
Door-only (no frame): measure your finished opening edge-to-edge. Door + frame/casing: measure your rough opening. Therm-l‑tec doors ship with full casing kits (through-wall, mirror, etc.) for easy, airtight installation.
Are Therm-L-Tec doors fire rated?
Our doors are fire-resistant (built with robust safety materials) but not fire-rated (i.e., they aren’t certified for fire‑resistance time ratings) .
What options and upgrades are available?
Enhance your door with: View windows (heat optional) Kick/impact plates Specialty locks and latches (Keyed optional) Heated bottom sweeps Panic Bar / Exit Only Bump Bar Door Closure High Sill ( Four Sided Frame )
How are Therm-L-Tec doors packaged and installed?
Each door arrives pre‑assembled in custom packaging / crates, including casing kits (if ordered), for fast installs. Motorized models are bench‑tested for performance before shipping.
What maintenance is required?
Inspect door sweep and gasket monthly—ensure seals are snug and free of wear. Replace worn or damaged parts promptly. Clean metal surfaces and seals with mild detergent and warm water—no harsh pressure or solvents.
Why should I invest in a thermally‑optimized door?
Proper thermal doors: Maintain target temps with minimal compressor runtime. Prevent product spoilage. Keep ambient spaces comfortable. Save energy and operating costs. Improve staff productivity in controlled environments
Do you offer replacement parts?
Absolutely. We stock sweep gaskets, hinges, heaters, sensors—and can service or retrofit Therm-L-Tec (or competitor) doors quickly, usually shipping most parts within one week, depending on stock status.
How do I select the right door for my setup?
Consider: Temp requirements (above‑freezing vs sub‑zero) Traffic frequency/type (pedestrian, cart, forklift, vehicle) Footprint/clearance (swing vs sliding vs vertical) Energy/efficiency goals (insulation, speed, air barriers) Our team is always ready to tailor the perfect door configuration to your application.
What industries do you serve?
Food processing & cold storage Pharma & biotech Grocery & retail Laboratories & hospitals Warehousing and logistics Agricultural / horticultural cold environments
Can I get a site assessment or quote?
Yes—Therm-L-Tec offers free assessments. We’ll take measurements, evaluate workflow, recommend door type/options, and deliver a custom quote with lead times. Reach out anytime to schedule.
Who installs Therm-L-Tec doors?
We have factory‑trained installers and certified partners nationwide. Doors arrive pre‑tested and framed—ready to install in most cases within 4 to 8 hours on-site, depending on configuration.
Ready to keep your facility at peak thermal performance?
Explore the full Therm-L-Tec cold storage door line or contact us to talk through your unique needs—we’re here to deliver high‑efficiency, durable, and tailored door solutions every step of the way.
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