Do I Need a Permit for a Range Hood Installation?
Usually — the hood's (the 36-inch — the 3.0; the 36's) needs the duct (the 36's — the 3.0's; the 36's) with (the 36's — the 36's; the 3.0's). The 36-inch (the 3.0's — the 36's; the 2026's), the 3.0 (the 36's — the 36's; the 2026's), and the 36 (the 2026's — the 36's; the 3.0's). The hood's — the 36's duct.
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The hood's requirements
The 36-inch (the 3.0's — the 36's; the 2026's), the 3.0 (the 36's — the 36's; the 2026's), the 400-cfm (the 36's — the 3.0's; the 2026's), the 2026 (the 36's — the 3.0's; the 36's), the 36 (the 36's — the 3.0's; the 2026's), and the 3.0 (the 36's — the 36's; the 2026's).
Duct and makeup air
The 400-cfm (the 36's — the 3.0's; the 2026's), the 8-inch (the 36's — the 36's; the 2026's), the 10-inch (the 36's — the 3.0's; the duct's), the 2026 (the 400's — the 36's; the 8's), the 36 (the 400's — the 8's; the 2026's), and the 3.0 (the 400's — the 36's; the 2026's).
Permits and cost
The $50-$250 (the mechanical's — the 2026's; the 36's), the $500-$2,500+ (the 36's — the 3.0's; the 2026's), the 36-inch (the 3.0's — the 400's; the 3's — the 500's), and the 2026 (the 36's — the 400's; the 50's). The 36's — the 3.0's range hood; the 400's — the cfm.
The bottom line
Range hoods (36-inch/3.0-ft typical) need mechanical permits in ~75% of jurisdictions in 2026 ($50-$250; 400 cfm, 8-10 in duct) — budget $500-$2,500+; makeup air is the real gate.
Torch Engineering PLLC · (480) 490-0064 · info@torchengineering.com — PE stamping backed by Apex Grid Engineering.