Thermostat Lock Boxes, Covers & Guards
In rentals, schools, offices, and shared spaces, thermostat covers keep setpoints from getting changed and protect the device from bumps and grime. Pick a cover style that fits the job, measure your thermostat (plus any wall plate), and leave a little extra space so buttons and bezels don’t touch the guard.
Showing 1–16 of 23 resultsSorted by popularity
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MSRP: $37.63You save 51%
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MSRP: $20.32You save 15%
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MSRP: $19.87You save 15%
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Sale!
Wire Guard and Baseplate for Commercial, Public, Industrial
Original price was: $89.99.$85.26Current price is: $85.26. -
MSRP: $37.85You save 15%
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Sale!
Steel Thermostat Guard, 5.5″ x 3.5″ x 2.75″
Original price was: $31.99.$19.04Current price is: $19.04.MSRP: $37.75You save 50% -
MSRP: $390.99You save 15%
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MSRP: $24.44You save 15%
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MSRP: $251.06You save 15%
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MSRP: $164.60You save 15%
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MSRP: $215.61You save 15%
Choose The Protection You Need
Lock Boxes
Clear, vented polycarbonate with a key or combo lock. Great for visibility and quick access with a key.
- Honeywell TG511A1000 Universal, clear: standard size.
- White-Rodgers F29-0198 Universal, clear: key-lock, mounts vertical or horizontal.
- iO HVAC TGL (combo lock), clear: combination lock option contractors like for shared keys.
Deep / Extended Guards
Extra interior depth for thicker Wi-Fi thermostats or when a wall plate sits proud of the wall.
- Honeywell TG512A1009 Large Universal, clear: large, deeper interior.
- Pro1 IAQ T150 Guard: roomy clear guard sized for many modern stats.
Heavy-Duty Metal Guards
Steel guards and wire cages for gyms, public spaces, and mechanical rooms.
- Johnson Controls GRD10-1R Wire Thermostat Guard: rugged wire cage.
- DiversiTech 585-TG7 Steel Thermostat Guard: compact steel box with solid base.
- DiversiTech 585-TG3 Steel Thermostat Guard: slightly larger steel version.
Trim Rings & Wall Plates
Hide paint lines and oversized wall openings. Use alone or under a guard.
- Honeywell 50022893-001 Cover Plate: simple clean-up plate.
How to Find Your Match
Measure first: width × height × depth of the thermostat including any wall plate/sensor. Add ~½″ to W/H and ~¾–1″ to depth for clearance.
Choose access: keyed cover (keyed-alike for property managers) or combo lock.
Pick the profile: standard vs. deep depending on how far the stat projects from the wall.
Mind ventilation: slotted/vented covers keep temperature sensing accurate. (All the clear guards above are vented.)
Mounting: confirm orientation, anchor to solid backing, and avoid covering nearby returns or supply registers.
