How Much Does Furnace replacement Cost in Mount Juliet, TN?
By The HomeLead Editorial Team · Reviewed by James K. Holloway, licensed TN GC #00069321 · Last updated
Range reflects Mount Juliet-area materials, labor, and permitting. Your actual quote depends on scope, finish tier, and site conditions.
Pricing a furnace replacement project in Mount Juliet means accounting for local labor rates, Wilson County permit and inspection schedules, and the specific cost drivers below. Use this page to set a realistic budget before you call contractors — and to spot quotes that fall outside the typical range.
What's in the cost: a Nashville-area breakdown
Here is how a typical furnace replacement project in Mount Juliet breaks down across components. Percentages are typical for the South-Atlantic region in 2026.
| Component | Share | Typical range |
|---|---|---|
| Equipment (condenser, coil, furnace/air handler) | 55% | $2,915 – $6,628 |
| Labor & install | 25% | $1,325 – $3,013 |
| Refrigerant, line set, drain | 6% | $318 – $723 |
| Electrical & disconnects | 4% | $212 – $482 |
| Permits & startup | 10% | $530 – $1,205 |
Cost drivers — what makes Mount Juliet furnace replacement jobs more (or less) expensive
- Tonnage (each ton adds roughly $700–$1,200 to installed cost)
- SEER2 efficiency tier (14.3 → 16 → 18+ each tier ~20–35% more)
- Single-stage vs two-stage vs variable-speed compressor
- Existing ductwork condition (sealing or replacement adds $1,500–$8,000)
- Electrical service upgrade (older homes may need a new breaker or sub-panel)
- Heat-pump vs straight AC + furnace (heat pump qualifies for $2,000 federal tax credit)
Mount Juliet-specific factors
Climate & exposure. Rapid-growth suburb with mix of 1990s and post-2010 construction; Old Hickory Lake influence on humidity.
Permits & inspection. City of Mount Juliet and Wilson County typically issue permits in 7–14 days.
Local labor. Mount Juliet is in Wilson County, with a population of about 39,584. Contractor density is highest along the 37122 ZIP corridor; expect lead times to lengthen for projects further out.
Ways to keep your Mount Juliet furnace replacement cost down
- Get 3 quotes — Nashville-area furnace replacement bids commonly vary by 25–40% on the same scope.
- Schedule in the off-season (late fall through winter for most exterior trades).
- Bundle related work (e.g., gutters with roof, or HVAC with electrical) for a single mobilization fee.
- Check eligibility for the federal Energy Efficient Home Improvement Credit (up to $1,200/year) or the 30% Residential Clean Energy Credit.
- Avoid the cheapest quote — in our network it's a strong predictor of change-orders later.
When NOT to skimp
Some line items are tempting to cut and almost always cost more later: full tear-off vs. overlay on roofs, Manual J load calcs on HVAC, full-frame vs. insert on rotting window openings, and waterproofing/membrane work in bath remodels. If a contractor offers to skip any of these to "save money," get a second opinion.
Authoritative resources
- Energy Star product database (U.S. EPA / DOE)
- IRS Energy Efficient Home Improvement Credit
- Tennessee Board for Licensing Contractors
Frequently Asked Questions
How much does a new AC cost in Nashville?
A new 3-ton AC and air handler installed in a typical Nashville home runs $5,500 to $9,200 in 2026 for a 14.3 SEER2 system, or $8,500 to $12,500 for a 16+ SEER2 variable-speed system.
How long does HVAC installation take?
A straightforward system replacement is one day. New ductwork or zoning can extend to 2–3 days.
Heat pump or gas furnace in Nashville?
Modern cold-climate heat pumps work well down to 5°F, which covers nearly all Nashville winters. Heat pumps qualify for a 30% federal tax credit (up to $2,000). Gas furnaces remain cheaper to run during the few sub-20°F nights.
How often should HVAC be serviced?
Twice a year — spring for AC, fall for heat. Annual tune-ups extend equipment life by 30–50%.
How do I know if my AC needs replacement?
If your unit is 12+ years old, uses R-22 refrigerant, has had 2+ major repairs, or your energy bill is climbing, replacement usually pays back faster than repair.
Compare furnace replacement quotes in Mount Juliet
Use the form on this page to get up to 3 free quotes from licensed, insured Mount Juliet-area pros — no fee, no obligation.