Guides & advice · Heating & Cooling
Heating & Cooling: costs, choices and hiring advice
Stay comfortable all year and lower your energy bills. Here is what to know before you get quotes.
What it costs
$5,000–$12,500
HVAC prices depend on the equipment you need, the size of your home, and whether ductwork has to be added or replaced.
- AC-only replacement$3,900–$7,900
- Furnace and AC together$8,500–$19,200 with ductwork
- Heat pump instead of AC$4,200–$7,600
Choices that change the price
- Repair or replaceFrequent repairs, an older system, refrigerant leaks or rising energy bills point toward replacement.
- Heat pump or furnace and ACHeat pumps use electricity to move heat and can replace both a furnace and an AC.
- Ducted or ductlessIf you have good ducts, a ducted system is usually simplest.
Problems and hidden costs to watch for
- SizingBigger is not better.
- Electrical changesHeat pumps and larger systems may need a new circuit or a panel upgrade.
- Ductwork conditionLeaky or undersized ducts can waste much of what a new system delivers.
- Permits and refrigerantMost replacements need a permit.
Upkeep and lifespan
- FiltersChange or clean filters regularly; a clogged filter strains the system.
- Yearly serviceHave the system checked once a year, before the heating or cooling season.
- Keep the outdoor unit clearKeep plants, leaves and snow away from the outdoor unit.
Hiring and comparing quotes
- Will you do a load calculation, or are you matching my old unit’s size?
- Are you replacing or reusing the ductwork, refrigerant lines and thermostat?
- Does the price include electrical work, the permit and haul-away of the old equipment?
- What are the efficiency ratings (SEER2, HSPF2 or AFUE) of the equipment quoted?
All heating & cooling guides
Costs, budgets and timelines
- Heating & Cooling cost guideNational prices, example budgets and what each price covers
- AC Repair Costs by ComponentAC repairs average about $408. Costs for capacitors, motors, coils, compressors and refrigerant leaks, plus service fees and warranty questions.
- Furnace Replacement Cost: Like-for-Like vs. Fuel ConversionMost furnace replacements run $2,819–$6,878. What changes when you switch fuel: venting, gas lines, electrical and ducts.
- Ductless Mini-Split Installation CostMini-splits run $2,000–$14,500 installed. What changes the price: zones, indoor head type, line length and electrical work.
- Electrical Panel Upgrades for Heat Pumps: When Might You Need One?Many homes can add a heat pump without a new panel, but older 100-amp services may not. How electricians decide and what an upgrade costs.
Repair, replace or choose
- Duct Sealing vs. Duct ReplacementManual duct sealing runs $400–$1,900 and Aeroseal $1,300–$2,700. How to tell whether leaky ducts need sealing, repair or replacement.
- AC Repair vs. Replacement: How to DecideAge, repair cost, refrigerant type and efficiency decide whether to fix an air conditioner or replace it. A practical guide.
- AC Replacement With Existing Ductwork: What Still Needs Checking?Reusing ductwork saves money, but leaks, undersized ducts and poor returns can undermine a new system. What a contractor should check.
Materials and methods
- Heat Pump vs. Central AC and FurnaceA heat pump heats and cools with one outdoor unit. Compare cost, climate fit and operating cost with a traditional AC and furnace.
Common problems
- Uneven Temperatures in the House: Causes and FixesHot upstairs, cold back bedroom? Blocked vents, duct problems, sizing and insulation are the usual causes. What to check first.
- AC Short Cycling: Why It Turns On and Off Too OftenShort cycling wears out equipment and leaves the house humid. Causes range from a dirty filter to an oversized system.
- Strange HVAC Noises and What They Can MeanBanging, squealing, buzzing and hissing can point to different problems. Which sounds mean "turn it off" and which can wait.
- AC Running but Not Cooling: What to CheckCheck the thermostat, filter and outdoor unit first. Then know the signs of low refrigerant, a frozen coil or a failed part.
Buying guides
- Smart Thermostat Compatibility: What to Check Before BuyingC-wires, heat pumps, multi-stage systems and line-voltage heat: how to make sure a smart thermostat will work with your system.
- Furnace Filter Sizes and MERV Ratings ExplainedHow to find the right filter size, what MERV ratings mean, and why the highest rating is not always best for your system.
- How to Measure Humidity in Your HomeUse a hygrometer to check humidity, aim for 30%–50%, and know what high or low readings mean for your home.
Hiring and comparing quotes
- What Should an HVAC Replacement Quote Include?Sizing, model numbers, efficiency ratings, ductwork, electrical, permits and warranty: a checklist for comparing HVAC quotes.
- How to Compare Contractor Estimates (With an Annotated Example)Line up scope, quantities, allowances, exclusions and warranty terms so you compare the same job, not just the bottom line.
- Questions to Ask Before Hiring a ContractorA practical checklist for the first call, the estimate visit and before you sign, plus links to project-specific questions.
- How to Verify a Contractor's License and InsuranceWhere to look up a license, how to confirm insurance with the insurer, and what each check does and does not tell you.
- Quote comparison worksheetLine up up to three quotes side by side
Budget tools
Repair or replace decision toolOrganize equipment age, repairs, warranty and quotes to see the trade-offs between repairing and replacing.Contractor quote comparison worksheetLine up up to three quotes side by side: price, scope, exclusions, warranty and payment schedule.
Talk to a local heating and cooling pro
Free call. We connect you with a participating heating and cooling pro who serves your area. Calls go to an independent service provider; FixFinch does not perform the work.
Cost figures are national ranges from the sources listed in the cost guide. They are not a quote from FixFinch or any contractor.