Trade hub
HVAC Technician
Install, service and troubleshoot the heating, cooling, ventilation and refrigeration systems buildings depend on.
- Median pay
- $57,300/yr
- Entry path
- 3–5 years
- Job outlook
- +9%
Direct answer
An HVAC technician installs, maintains and repairs heating, ventilation and air conditioning equipment — furnaces, heat pumps, central air, ductless mini-splits and the ductwork that moves conditioned air. You need one when you have no heat or cooling, weak airflow, refrigerant leaks, short cycling, strange smells from vents or when replacing equipment that needs load sizing and permit. Repairs often run $150–$800 for common AC or furnace fixes; full system replacement commonly falls in the $4,500–$20,000 range depending on efficiency tier and duct work. Appliance repair shops fix refrigerators and window units — not central split systems tied to refrigerant licensing and gas venting.
What hvac technicians fix and install
- Diagnose and repair furnaces, heat pumps and air conditioners
- Replace condensers, air handlers, coils and complete matched systems
- Recharge or repair refrigerant lines — EPA-certified handling
- Clean and seal ductwork; add returns and zoning where designed
- Install thermostats, humidifiers and air filtration
- Combustion analysis and heat exchanger inspection on gas furnaces
- Mini-split and multi-zone ductless installation
- Preventive maintenance — coils, filters, drains and safety controls
- Venting and flue repairs for gas appliances
- Commercial rooftop units — residential techs may refer complex jobs
This trade vs the one you might confuse it with
| Often confused with | HVAC Technician does | The other trade does |
|---|---|---|
| Appliance repair technician | Services central HVAC, refrigerant circuits, gas furnaces and duct systems. | Repairs refrigerators, ranges and room AC units — not whole-home split systems. |
| Electrician | Starts up equipment after proper electrical disconnect and thermostat wiring. | Runs new circuits from the panel — HVAC does not replace your panel for load. |
| Plumber | Condensate drains, humidifier water lines and some gas appliance connections per local rule. | Repipes domestic water and sewer — not refrigerant or duct design. |
| Insulation contractor | Fixes airflow, sizing and equipment efficiency — may recommend insulation but does not only blow cellulose. | Adds attic insulation and air sealing — does not replace a failed compressor. |
Typical job prices
National planning ranges — not quotes. Open a cost guide for drivers, permits and regional pages where published.
| Job | Typical range |
|---|---|
| HVAC System ReplacementReplacing a residential furnace, air conditioner or heat pump, including installation and startup. | $4,500–$20,000 |
| Air Conditioner RepairDiagnosing and repairing a residential air conditioning system that is not cooling properly. | $150–$2,500 |
| Mini-Split InstallationInstalling a ductless mini-split heat pump system with one or more wall-mounted or ceiling heads. | $3,000–$18,000 |
| Ductwork ReplacementRemoving and replacing deteriorated, undersized, or leaking supply and return ductwork in a home. | $1,500–$10,000 |
| Heat Pump ConversionConverting a gas furnace and AC system to a heat pump for year-round heating and cooling. | $8,000–$25,000 |
| Furnace ReplacementReplacing a gas or propane furnace while keeping the existing air conditioning system. | $2,500–$8,000 |
| AC Refrigerant RechargeDiagnosing a refrigerant leak, repairing it, and recharging the system to the correct charge level. | $200–$1,800 |
| Thermostat InstallationInstalling or replacing a thermostat, including smart Wi-Fi models with HVAC system integration. | $100–$500 |
| Air Handler ReplacementReplacing the indoor air handler unit — the furnace, coil, and blower assembly in a split system. | $2,000–$7,000 |
| AC ReplacementReplacing a central air conditioning system including outdoor condenser, indoor coil, refrigerant lines, and startup. | $4,500–$14,000 |
| Condenser ReplacementReplacing the outdoor AC or heat pump condenser unit while reusing a compatible indoor coil when possible. | $2,500–$8,500 |
| Evaporator Coil ReplacementReplacing the indoor evaporator coil in an air handler or furnace cabinet when it leaks or corrodes. | $1,200–$5,500 |
| Blower Motor ReplacementReplacing a failed furnace or air handler blower motor, including ECM upgrades when specified. | $350–$1,400 |
| Refrigerant Leak RepairLocating a refrigerant leak, repairing the joint or coil, and recharging the system to factory charge. | $300–$2,200 |
| Furnace RepairDiagnosing and repairing gas or electric furnace failures — ignitors, inducer motors, control boards, and sensors. | $150–$1,200 |
| Heat Pump ReplacementReplacing a central heat pump system including outdoor unit and indoor air handler or coil. | $5,500–$18,000 |
| HVAC Maintenance PlanAnnual or semi-annual preventive maintenance agreement covering tune-ups, filters, and priority service. | $150–$600 |
| Duct CleaningProfessional cleaning of supply and return ductwork to remove dust, debris, and allergens. | $300–$900 |
| Duct SealingSealing leaky duct joints with mastic or aerosol duct sealing to improve efficiency and comfort. | $400–$2,800 |
| Zoning System InstallationInstalling motorized dampers and a zone control panel to direct heating and cooling by area. | $2,000–$8,500 |
| Whole-House HumidifierInstalling a bypass or fan-powered humidifier on a forced-air system with humidistat control. | $400–$1,400 |
| Whole-House DehumidifierInstalling a ducted whole-home dehumidifier tied into return or dedicated plenum for humidity control. | $1,500–$4,500 |
| Attic Fan InstallationInstalling a powered attic ventilator or whole-house fan to reduce heat buildup. | $350–$1,200 |
| Air Purifier InstallationInstalling a whole-home air cleaner or UV purifier in the return duct of a forced-air system. | $500–$2,200 |
| Swamp Cooler InstallationInstalling an evaporative cooler on the roof or wall with duct tie-in and water line. | $2,000–$5,500 |
Common problems
Start with symptoms when you are not sure what failed — then hire the right trade.
- DiagnoseAir Conditioner Not CoolingWork through the causes of an air conditioner that runs but does not cool, ordered from most to least likely.
- DiagnoseFurnace Not HeatingDiagnose a gas furnace that will not fire, short cycles, or blows cold air, starting with what you can safely check.
- DiagnoseFurnace Short CyclingA furnace that turns on and off every few minutes instead of running a full heating cycle — what causes it and what each fix costs.
- DiagnoseAC Freezing UpIce on your AC lines or evaporator coil — why it happens, what to do right now, and what the underlying repair costs.
- DiagnoseAC Blowing Warm AirYour air conditioner runs but the air from the vents is warm — work through the causes from cheapest to most expensive.
- DiagnoseFurnace Blowing Cold AirThe furnace runs but the air from your vents is cold or lukewarm — diagnose the cause before calling for an expensive repair.
- DiagnoseFurnace Blower Won't Stop RunningThe furnace blower runs continuously even when heating or cooling is not called — find out why and what it costs to fix.
- DiagnoseThermostat Screen BlankA blank thermostat display usually means no power to the device — work through the causes before assuming the whole system has failed.
- DiagnoseAC Leaking WaterWater under the indoor air handler or furnace — usually a clogged condensate drain, not refrigerant — can damage ceilings if the pan overflows.
- DiagnoseAC Smells MustyMusty odor when AC runs points to mold on the evaporator coil, dirty drain pan, or duct moisture — not normal and worth cleaning before peak season.
- DiagnoseAC Making Screeching NoiseHigh-pitched screeching from the outdoor unit or air handler often means a failing belt, bearing, or compressor — shut down if grinding accompanies the noise.
- DiagnoseOutdoor AC Unit Not RunningIndoor fan runs but the condenser stays silent — check disconnect, breaker, thermostat call, and contactor before assuming compressor failure.
- DiagnoseAC Tripping BreakerA breaker that trips when AC starts or runs points to locked compressor, bad capacitor, shorted wire, or dirty coil raising amp draw.
- DiagnoseAC Running ConstantlyAC that never cycles off may be undersized for the heat load, low on refrigerant, fighting poor insulation, or set to fan On instead of Auto.
- DiagnoseIce on Refrigerant LineFrost or ice on the suction line or outdoor unit means restricted airflow or low charge — turn cooling off and thaw before serious compressor damage.
- DiagnoseMini Split Not CoolingA ductless head that blows warm air while others cool — filter, refrigerant leak, mode setting, or communication fault between indoor and outdoor units.
- DiagnoseFurnace Smells Like GasRotten-egg odor near a gas furnace is an emergency — leave, do not switch lights, and call the gas utility from outside; brief smell on startup may be normal if it dissipates.
- DiagnoseFurnace Pilot Won't LightOlder standing-pilot furnaces need gas flow, thermocouple signal, and clean pilot orifice — electronic ignition systems differ; know your type before troubleshooting.
- DiagnoseFurnace Making a BoomA loud bang at furnace startup is delayed ignition — gas builds before flame lights — and can crack heat exchangers or harm occupants over time.
- DiagnoseHeat Pump Blowing ColdHeat pumps blow cooler-than-furnace air normally — but icy cold air in heat mode means defrost failure, reversing valve stuck, or auxiliary heat not engaging.
- DiagnoseUneven Heating Between RoomsSome rooms cold while others roast — duct balance, insulation, solar gain, or equipment sizing — not always a failing furnace.
- DiagnoseVents Blowing Weak AirLow airflow at registers reduces heating and cooling — filter, blower, duct leaks, or crushed flex are the usual suspects before replacing equipment.
- DiagnoseThermostat Won't Change TemperatureSetpoint changes but nothing happens — dead batteries, locked schedule, wiring, or equipment lockout — verify the display and whether heat or cool actually calls.
- DiagnoseHigh Humidity IndoorsSticky indoor air above 55% RH — oversized AC, poor ventilation, basement moisture, or short cycles — risks mold and discomfort even when temperature feels OK.
- DiagnoseCarbon Monoxide Alarm Going OffCO alarms signal incomplete combustion — evacuate and call 911 or the fire department from outside.
- DiagnoseRadon Test Came Back HighElevated radon needs mitigation — sealing alone rarely fixes; active depressurization is standard.
Licence and insurance expectations
EPA Section 608 is required nationwide to handle refrigerant. Many states add a separate HVAC contractor or mechanical license. For work at your home, expect proof of general liability and workers compensation on larger jobs. Rules vary by state and city — verify the licence class covers residential work before you sign.
How to verify one in two minutes
- Verify the contractor's HVAC or mechanical licence on your state board via /licensing.
- Confirm EPA Section 608 certification for any technician handling refrigerant.
- Ask for a Manual J load calculation or equivalent documentation on replacements — not just matching old tonnage.
- Check that mechanical permits will be pulled for furnace and AC changeouts where required.
- Request proof of liability insurance — refrigerant and combustion work carry real property risk.
- Match the quote to named equipment model numbers and efficiency tier — compare apples to apples.
Questions to ask before you hire
- Will you perform a load calculation before sizing replacement equipment?
- Is the quote for a matched system with new indoor coil and line set flush if needed?
- What warranties cover parts versus labor, and who registers the manufacturer warranty?
- How do you handle duct modifications if static pressure is high?
- What is the diagnostic fee and is it applied to repair if I proceed?
- For gas furnaces, do you inspect heat exchangers with camera or combustion analysis?
- What is the timeline for parts if the condenser is obsolete?
- Do you pull the mechanical permit and attend inspection?
Red flags
- Sizes equipment only by square footage with no load calculation
- Quotes changeout without inspecting ductwork or line set condition
- Adds refrigerant without finding a leak — illegal to knowingly vent repeatedly
- No mechanical licence for gas furnace installation
- Pressure-washes indoor coils in place without protecting electronics — sloppy practice
- One-page quote with no model numbers or efficiency ratings
- Demands full payment before equipment delivery on standard replacements
Find a licensed pro
We only show businesses where we have consent or a documented public-record match. If none are listed in your metro yet, use the state board lookup and the hiring checklist below.
No paid placement
Rankings are never sold. Order reflects verification depth and relevance, not payment.
Verify any licence yourself before signing: state licensing hub.
Tools for homeowners
Decision support before you call — free in the browser.
- ComparisonRepair vs. ReplaceCompare the economics of repairing a failing system against replacing it outright.
- DiagnosticQuote AnalyzerBreak down a contractor's quote and see whether the price and the terms are reasonable.
- ComparisonDIY vs. ProWeigh cost, time, tools, permits, risk and consequences before you take on a job yourself.
- PlannerMaintenance PlannerGenerate a seasonal maintenance schedule tailored to your home's systems, age and climate.
For trade owners
Pricing this job as a contractor?
Homeowners see national ranges on this page. If you are building the estimate, use the same scope assumptions — then price to burdened labor, overhead recovery and a real margin.
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For owners of hvac technicians
Field calculators and pricing tools this trade uses on the job.
- CalculatorHVAC SizingEstimate the heating and cooling capacity a home needs before you get equipment quotes.
- DiagnosticSuperheat / SubcoolConvert pressure and temperature readings into superheat and subcooling to diagnose charge.
- CalculatorJob PricingBuild a defensible price from labor, materials, overhead and your target profit margin.
- CalculatorDuct SizingSize round and rectangular duct from airflow and friction rate, with velocity checks.
Common questions
How much does HVAC repair cost when the AC is not cooling?
Common repairs — capacitors, contactors, condensate switches, control boards — often run $150–$650 plus diagnostic fee in 2026. Refrigerant leak repair depends on location and EPA rules. Compressor or coil replacement can approach replacement economics. Get the diagnostic in writing and ask when repair exceeds 50% of a new system.
How much does full HVAC replacement cost in 2026?
National ranges for a matched furnace and central AC often land $8,000–$14,000 for typical single-family homes, with partial changeouts lower and high-SEER2 variable systems higher. Duct replacement, electrical upgrades and line sets drive spread. Insist each bid lists the same SEER2/HSPF tier and duct scope.
What is the difference between an HVAC technician and an HVAC contractor?
Technicians perform service and install under supervision. Contractors hold the licence, pull permits and carry insurance. For your job, verify the company licence and that a qualified tech performs startup and combustion checks — not only sales staff.
Do I need a permit to replace my air conditioner or furnace?
Most cities require mechanical permits for equipment changeouts affecting gas, refrigerant or venting. Maintenance like filter changes does not. Permit protects resale and ensures inspection of gas piping and venting. A contractor who refuses permits on full changeouts is a red flag.
How often should I service my HVAC system?
Annual maintenance on furnaces and twice-yearly checks in harsh climates for heat pumps are common manufacturer recommendations. Maintenance covers coils, drains, safety controls and combustion — not just filter swaps. Skipped maintenance can void warranties.
Should I repair my 15-year-old AC or replace it?
Use age, repair cost, refrigerant type and efficiency together. Repeated compressor issues, R-22 equipment or repairs over roughly half of replacement cost push toward replacement. A written repair-versus-replace comparison with efficiency savings helps decide.
Why are HVAC quotes so different for the same tonnage?
Efficiency tier, brand, duct repairs, line set replacement, electrical work and warranty length differ. Low bids may omit duct sealing or use mismatched coils. Compare model numbers, not just tonnage.
Can an electrician fix my air conditioner?
Electricians handle circuits and disconnects — not refrigerant, coil cleaning or gas heat exchangers. If the unit will not start, an HVAC diagnostic finds whether the problem is control, refrigerant or mechanical — not only voltage.
What is a Manual J load calculation and do I need one?
Manual J estimates heating and cooling load from insulation, windows, orientation and air leakage — proper sizing prevents short cycling and humidity problems. Many codes require it for permits. Beware contractors who only swap like-for-like without verifying sizing.
How do I find a licensed HVAC contractor near me?
Verify mechanical licence status, compare three written bids with equipment schedules, and use diagnostic pages when symptoms are unclear — for example AC not cooling or furnace not heating. Local listings emphasize verification date, not ad spend.
Is duct cleaning a substitute for HVAC repair?
Cleaning does not fix refrigerant leaks, failed motors or cracked heat exchangers. It may help airflow if registers are fouled. Address mechanical faults first; then consider sealing and cleaning if a tech documents need.
What HVAC maintenance can homeowners do safely?
Replace filters, keep outdoor units clear of debris and check thermostat settings. Do not open refrigerant lines or gas valves. Carbon monoxide alarms belong on every floor with gas appliances.
Pay and outlook figures on this page: U.S. Bureau of Labor Statistics, Occupational Outlook Handbook, May 2023 national wage estimates. Cost ranges: National averages for standard access and mid-grade materials. Reviewed September 2026 / September 2026.
Career overview
Pay, training path and day-to-day work if you are exploring hvac technician as a trade — or want context on who you are hiring.
What hvac technicians do
HVACR technicians work on the equipment that controls temperature, humidity and air quality — furnaces, heat pumps, air conditioners, chillers and commercial refrigeration. The trade rewards diagnostic ability more than almost any other: a strong technician is paid for knowing which of thirty possible causes is producing the symptom. EPA Section 608 certification is federally required before you can purchase or handle refrigerant.
- Median annual pay
- $57,300
- $27.55 per hour
- Typical range
- $36,700–$91,600
- 10th to 90th percentile
- Projected growth
- +9%
- 2023–2033 projections
- Annual openings
- 42,500
- Growth plus replacement
Source: U.S. Bureau of Labor Statistics, Occupational Outlook Handbook, May 2023 national wage estimates. Local pay varies substantially with union scale, prevailing wage projects and regional demand. Estimate pay for your area.
The work itself
A typical day
- Take refrigerant pressures and calculate superheat and subcooling
- Diagnose control, airflow, electrical and charge faults
- Braze line sets, pull vacuum and weigh in charge
- Perform load calculations and size replacement equipment
- Commission systems and document static pressure
Where you work
- Attics and crawlspaces in summer heat
- Rooftops and mechanical penthouses
- Grocery and restaurant refrigeration
- Data centers and central plants
Physical demands
Attic and rooftop work in extreme temperatures, ladder carries with heavy equipment, and awkward positions inside air handlers. Summer is long hours; winter varies by climate.
The honest tradeoffs
What works in your favor
- Diagnostic skill is highly valued and hard to automate
- Short training path compared with four-year apprenticeships
- Demand growing with heat pump and electrification retrofits
- Commercial refrigeration pays well and is chronically short-staffed
What to go in knowing
- Seasonal peaks mean very long summer weeks
- Attic and roof work in the worst weather of the year
- Heavy on-call load at service companies
- Refrigerant regulation changes constantly
Getting in
- Typical education
- Postsecondary nondegree award or high school diploma
- Training route
- 6–24 month trade program, or a 3–5 year apprenticeship
- Apprenticeship length
- 3–5 years
- Licensing
- EPA Section 608 is required nationwide to handle refrigerant. Many states add a separate HVAC contractor or mechanical license.
Where the trade splits
Pay and working conditions diverge sharply by specialization. These are the paths most hvac technicians end up choosing between.
- Residential service and replacement
- Commercial rooftop units
- Commercial refrigeration
- Chillers and central plant
- Building automation and controls
- Hydronics and boilers
- Heat pump and electrification retrofits
- Indoor air quality
Credentials that matter
- EPA Section 608 Technician CertificationEPA-approved certifying organization
- NATE CertificationNorth American Technician Excellence
- HVAC Excellence CertificationESCO Group
- EPA Section 609 (Motor Vehicle A/C)EPA-approved program
- OSHA 30-Hour ConstructionOSHA-authorized trainer
HVAC Technician field tools
The calculators this trade uses on the job. Everything runs in the browser.
- CalculatorPipe VolumeCalculate the water volume, weight and fill time of a pipe run for flushing and testing.
- CalculatorHVAC SizingEstimate the heating and cooling capacity a home needs before you get equipment quotes.
- CalculatorDuct SizingSize round and rectangular duct from airflow and friction rate, with velocity checks.
- DiagnosticSuperheat / SubcoolConvert pressure and temperature readings into superheat and subcooling to diagnose charge.
- CalculatorJob PricingBuild a defensible price from labor, materials, overhead and your target profit margin.
- CalculatorShop RateDetermine the shop rate you must charge per billable hour to cover overhead and hit your income target.
- CalculatorJob ProfitabilityCompare quoted price against actual hours and material to see what a job really earned.
- CalculatorBreak-EvenFind the revenue and billable hours required to cover fixed and variable costs.
- CalculatorMarkup / MarginConvert between markup and gross margin so you stop pricing below your intended profit.
- PlannerStarter Tool KitBuild a first-year tool list for your trade and see what it costs at three quality tiers.
- CalculatorEstimated TaxFigure quarterly estimated tax for 1099 contractors — federal income tax, self-employment tax, and what to set aside from each check.
- CalculatorEffective RateSee what you actually earn per hour worked — field time, admin, sales, and drive time included.
- CalculatorEmployee vs. SubCompare the true loaded cost of a W-2 employee against a 1099 subcontractor at your actual utilization.
- CalculatorVehicle CostCalculate the true hourly and per-mile cost of your work truck — payment, fuel, insurance, maintenance, and depreciation.
- CalculatorEquipment ROIDecide whether to buy or rent trade equipment — payback period, cost per use, and annual return on investment.
- CalculatorLead ValueFind what a lead is worth, your max affordable cost per lead, and whether your marketing spend actually pays.
- CalculatorPrice IncreaseModel what happens to revenue and profit when you raise prices — and how many customers you can afford to lose.
- CalculatorCash RunwaySee how many months of cash you have at current burn — and what revenue change keeps you solvent.
- CalculatorHVAC PricingCalculate HVAC diagnostic fees, hourly service rates, and common repair pricing — with technician-specific defaults and U.S. market benchmarks.
- CalculatorShould I Take This Job?Quote price, hours, travel and materials against your margin floor — go or no-go before you schedule.
- CalculatorLabor Burden CalculatorWage to true employer cost per hour — taxes, workers comp, benefits, vehicle, and non-billable time.
- CalculatorOverhead Recovery CalculatorAnnual overhead divided by billable hours — the hourly overhead adder your rate must carry.
- CalculatorRevenue Target CalculatorOwner pay plus overhead and margin → revenue needed, jobs to sell, and quotes to send at your close rate.
- CalculatorRefrigerant Pressure–Temperature ChartSaturation pressure for common refrigerants — mobile-friendly field reference.
- ChecklistService Report GeneratorFindings, readings and recommendations → printable PDF for the customer.
Find hvac technicians near you
Consent-based listings ranked by distance, relevance and verification date — never by payment.
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Trades that share skills, tools or career adjacency.
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