Heating and cooling is one of the biggest systems — and expenses — in any home. This guide explains what HVAC work typically costs, how to compare contractors in your area, and what to ask before you sign.
Typical HVAC costs
National ballpark ranges for planning only — not quotes. What you pay depends on scope, materials, access and your local market, so always compare written estimates.
| Service | Typical range |
|---|---|
| Seasonal tune-up / inspection | $80 – $200 |
| Typical AC or heating repair | $150 – $650 |
| Central AC replacement | $5,000 – $12,000 |
| Furnace or heat pump replacement | $3,500 – $10,000 |
| Ductwork repair or sealing | $300 – $2,000 |
How HVAC needs vary by region
Climate changes what matters most, what fails first and when to book. Find your region below.
| Region | What changes |
|---|---|
| Hot & humid South AL, AR, FL, GA, HI, LA, MS, SC, TX | Air conditioning runs most of the year in this region's climate, so cooling capacity, humidity control and condensate drain maintenance matter more than heating. Ask any installer for a load calculation (Manual J) rather than sizing by square footage alone. |
| Hot & dry Southwest AZ, NM, NV | Cooling dominates in this region: dust, extreme heat and long run-times shorten equipment life. Ask about filter changes, coil cleaning and whether the system is rated for high outdoor temperatures. |
| Mixed / four-season DC, DE, KS, KY, MD, MO, NC, OK, TN, VA, WV | Homes in this region need both a dependable air conditioner and a heating system. Heat pumps are a common option in this climate; ask installers to compare a heat pump with a conventional furnace and AC for your home. |
| Cold North & Mountain AK, CO, CT, IA, ID, IL, IN, MA, ME, MI, MN, MT, ND, NE, NH, NJ, NY, OH, PA, RI, SD, UT, VT, WI, WY | Heating reliability is the priority in this region. Schedule furnace or boiler service before the first hard freeze, and ask about sizing, venting and backup options if your system fails in a cold snap. |
| Mild West Coast CA, OR, WA | With a milder climate, many homes in this region run heating and cooling less often, which makes efficiency upgrades slower to pay back. Heat pumps and ductless systems are worth pricing alongside traditional equipment. |
How to hire the right HVAC contractor
- Describe the problem clearly (no cooling, short-cycling, uneven rooms, high bills) and note the age and brand of your equipment.
- Get at least three written estimates. For replacements, insist on a load calculation, not a rule-of-thumb size.
- Compare equipment model numbers, efficiency ratings (SEER2/AFUE), warranty terms and what is included (permits, disposal, thermostat, duct work).
- Verify license, insurance and, for refrigerant work, EPA 608 technician certification.
- Get everything in writing, including start date, payment schedule and warranty, before work begins.
Questions to ask before you hire
- Will you perform a load calculation (Manual J) for my home?
- Are you licensed in your state, and can I see proof of insurance?
- Which parts and labor are covered by warranty, and for how long?
- Are permits included in the price?
- Can you quote repair versus replace so I can compare?
Red flags to watch for
- Pressure to decide today or 'special pricing' that expires immediately.
- A replacement quote with no load calculation or equipment model numbers.
- Large cash deposits or payment demanded up front in full.
- No license number or proof of insurance when asked.
Licensing and verification
Most states and many cities license HVAC contractors, and technicians who handle refrigerant must hold EPA Section 608 certification. Verify the contractor's license with your state's licensing authority before work begins.
When to schedule
Book tune-ups in spring (cooling) and fall (heating). Replacements are easier to schedule and negotiate in shoulder seasons than during a heat wave or cold snap.
Frequently asked questions
How much does HVAC repair cost?
How often should I service my system?
When should I replace instead of repair?
HVAC by city
Local notes for 155 cities — licensing bodies, climate and seasonal timing.
Other guides
AllCityPros is an independent information resource. We do not endorse, rate or vouch for any specific business, and nothing here is professional advice. Cost ranges are national ballparks and are not quotes. Always verify licences, insurance and references yourself.