Do I Need a Permit to Replace a Furnace in Nevada?
Furnace replacement permit requirements. Even same-model swaps need a mechanical permit. What inspectors check.
Yes — even a like-for-like furnace swap requires a mechanical permit.
Why Even a Swap Needs a Permit
Furnace replacements involve gas connections, venting, and combustion air — all safety-critical systems. Most jurisdictions require a mechanical permit to verify the new furnace is properly vented, has adequate combustion air, and the gas connections are leak-free. This is true even for exact same-model replacements.
High-Efficiency Conversions
Upgrading from a standard-efficiency (80%) to high-efficiency (90%+) furnace changes the venting requirements: standard units use metal B-vent, high-efficiency units use PVC/CPVC. The old metal vent chase may need to be sealed. A condensate drain line is also required for high-efficiency units.
What Inspectors Check
The final inspection covers: gas piping and drip leg, venting type and clearances, combustion air supply (especially in confined spaces), condensate drain (high-efficiency units), thermostat operation, and CO detector presence on every level.
Bundled with AC?
If you're replacing both the furnace and AC unit at the same time, one mechanical permit typically covers both. The inspector will check the AC refrigerant lines, electrical disconnect, and condenser pad in addition to the furnace items.
Yes, always. The permit is $40-$75 and your HVAC contractor handles it. One final inspection. Don't skip it — CO poisoning from bad venting is real.
Permit fees by city in Nevada
Verified from each city’s published fee schedule. Where a city has no separate fee listed for this project, open the city page for the current requirements and amount.
29 rows
| Permit fee | Source | |
|---|---|---|
| Boulder City | $40.00Verified | Mechanical / HVAC Permit → |
| Carlin | See city page for the current Residential Building Permit (New Construction / Addition / Remodel) fee | Residential Building Permit (New Construction / Addition / Remodel) → |
| Carson City | Varies — valuation-based (1.5% of value, $65 min)Verified | Mechanical / HVAC Permit → |
| Douglas County | $167.93 (flat fee)Verified | Mechanical / HVAC Permit → |
| Elko | $40.00Verified | Mechanical / HVAC Permit → |
| Ely | See city page for the current Mechanical / HVAC Permit fee | Mechanical / HVAC Permit → |
| Fallon | Not published — the UMC's standard Table 104.5 fee schedule was replaced by the City's own 'Table C' per City Code § 17.04.020(H)(1), but the substituted table's dollar amounts were not published in the Municode-hosted ordinance text or found elsewhere on the City's websiteVerified | Mechanical / HVAC Permit → |
| Fernley | $80Verified | Mechanical / HVAC Permit → |
| Henderson | $360Verified | Mechanical / HVAC Permit → |
| Lander County (including Battle Mountain) | Based on project valuation per 1997 UBC Table 1-A; no dollar-figure fee table is published on the county websiteVerifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Las Vegas | $100 inspection + $83 plan check = $183 total (plus $55 admin)Verified | Mechanical / HVAC Permit → |
| Lyon County | $80.00 flatVerified | Mechanical / HVAC Permit (Gas Service / Pellet-Wood Stove / Generator) → |
| Mesquite | Square footage × $0.040Verified | Mechanical / HVAC Permit → |
| North Las Vegas | $75 per permitVerified | Mechanical / HVAC Permit → |
| Nye County (Unincorporated, incl. Pahrump) | Not published as an itemized dollar table on the Nye County Building Department's public websiteVerified | Mechanical / HVAC Permit → |
| Pershing County (includes Lovelock) | $67.00 per square footVerifiedvia Building Permit (New Construction — Single/Multi-Family Dwelling) | Building Permit (New Construction — Single/Multi-Family Dwelling) → |
| Reno | $45.00Verified | Mechanical / HVAC Permit → |
| Sparks | Varies — valuation-based (see Sparks tiered permit fee table; mechanical fees = 100% of the principal amount)Verified | Mechanical / HVAC Permit → |
| Storey County (includes Virginia City) | $23.50Verifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Unincorporated Churchill County | Not published — based on construction valuation; no dedicated mechanical fee table found on the County websiteVerified | Mechanical / HVAC Permit → |
| Unincorporated Clark County | $54.00Verified | Mechanical / HVAC Permit → |
| Unincorporated Elko County | Valuation-based per Table 1-A: e.g., $44.00 minimum for valuation up to $1,300; scaling up to $4,955.00 for the first $1,000,000 of valuation plus $2.75 per additional $1,000Verifiedvia Residential Building Permit (1 & 2 Family Dwelling — New Construction) | Residential Building Permit (1 & 2 Family Dwelling — New Construction) → |
| Unincorporated Humboldt County | $51.75Verified | Mechanical / HVAC Permit → |
| Unincorporated Lincoln County | $20.00Verifiedvia Residential Building Permit (New Construction) | Residential Building Permit (New Construction) → |
| Unincorporated Washoe County | $45.00Verified | Mechanical / HVAC Permit → |
| Unincorporated White Pine County | Valuation/fee schedule not published on the county websiteVerified | Mechanical / HVAC Permit → |
| West Wendover | Example for a $200,000 valuation new single-family home: Building Permit Fee $1,553.75; Plan Check Fee $1,009.94; Water Impact Fee $3,715.58; Sewer Impact Fee $2,972.46; Total $9,251.73Verifiedvia Residential Building Permit (Single-Family, Two-Family, Manufactured Home — New Construction) | Residential Building Permit (Single-Family, Two-Family, Manufactured Home — New Construction) → |
| Winnemucca | Not published as a standalone current fee schedule; itemized equipment-based fee categories exist on the application form but current per-unit dollar rates are not publishedVerified | Mechanical / HVAC Permit → |
| Yerington | $80.00 per inspectionVerified | Mechanical / HVAC Permit (Including Wood Stoves) → |