HVAC Service Costs at a Glance
Service
Price Range
Duration
Central AC Installation
per system
$3.5k–$7k
1–2 days
Furnace Replacement
per unit
$2.5k–$6k
4–8 hours
AC / Heating Repair
per visit
$150–$600
1–3 hours
Duct Cleaning
per home
$300–$500
3–5 hours
Smart Thermostat Install
per unit
$125–$350
1–2 hours
Emergency HVAC Repair
per call
$300–$800
1–3 hours
Calculate Your HVAC Cost
HVAC Pricing FAQ
How much does a new AC unit cost installed?
A central AC installation typically costs $3,500–$7,000 depending on home size, SEER rating, and ductwork condition. High-efficiency units (16+ SEER) cost more upfront but save $200–400/year on energy bills.
Is it cheaper to repair or replace an HVAC system?
If your system is under 10 years old and the repair is under $1,000, repair is usually better. Over 15 years or if the repair exceeds 50% of replacement cost, replacing is more cost-effective long-term.
What affects HVAC installation cost the most?
Home size and equipment efficiency rating have the biggest impact. A 1,500 sq ft home needs a 2.5–3 ton unit (~$3,500–5,000), while a 3,000+ sq ft home may need 5 tons (~$5,000–7,000+).