Heating and air conditioning in the Triangle: costs, licenses, permits and hiring

A guide for homeowners in Raleigh, Durham, Cary and Chapel Hill who need to replace or repair a furnace, air conditioner or heat pump. It covers what the work costs and which rebates are left, the North Carolina license a contractor needs, what each town requires for a permit, the state's sizing rule, and what to ask before you sign.

What heating and air conditioning costs in the Triangle

The figures below come from national cost guides. One of them adjusts its national numbers for Raleigh; none is a price list from Triangle contractors. Treat them as guide figures for judging whether a quote looks normal, and get written quotes for your own house.

Replacing a system

Angi's Raleigh page puts the average HVAC replacement at $7,365, with most homeowners spending $4,910 to $12,275 on standard installations (Angi, Raleigh). It gives $10,000 to $14,500 for replacing an air conditioner and furnace together, and around $9,000 to $13,000 for a heat pump with an air handler, both assuming the ductwork is in acceptable condition (Angi, Raleigh). New ductwork can push a full system replacement to $14,000 to $26,000 or more (Angi, Raleigh). Angi builds these local figures by applying local price index data to its national numbers, so they are not a survey of Raleigh prices (Angi, Raleigh).

The national guides do not agree closely, so the table gives each one's range side by side.

Fixr says prices vary with system size, SEER rating and ductwork (Fixr, central AC). For permits and inspections, Fixr adds $50 to $300 (Fixr, heat pumps) and HomeGuide $100 to $250 (HomeGuide). The fees the towns post are in the permit section below: $65 in Durham (Durham mechanical fees), $70 for a heat pump in Chapel Hill (Chapel Hill fees) and a $124 minimum trade permit fee in Raleigh ($129 with the City's 4% technology surcharge) (Raleigh fee guide).

Repairs, and when to replace instead

Fixr puts the average air conditioner repair at $375, with most between $250 and $700 (Fixr, AC repair). A service call costs at least $75 in most cases, and a repair can reach $3,000 if a major part such as the compressor has to be replaced (Fixr, AC repair). Fixr's installed prices for common parts are $100 to $400 for a capacitor, $300 to $2,000 for a blower motor, $400 to $2,700 for an evaporator coil and $600 to $3,000 for a compressor (Fixr, AC repair). Fixing a refrigerant leak and refilling the lines costs $200 to $1,500, with an average of around $800 (Fixr, AC repair).

HomeGuide splits compressor prices by warranty: $600 to $1,200 under warranty and $1,800 to $2,800 out of warranty (HomeGuide, AC repair). Older systems that use R-22 cost more to recharge: HomeGuide gives $90 to $150 per pound for R-22 against $50 to $80 per pound installed for R-410A (HomeGuide, AC repair).

Fixr's rule of thumb: if the repair will cost more than 50% of a replacement, replacing is probably the better choice in the long run (Fixr, AC repair). ENERGY STAR lists age as a sign it may be time to replace: a heat pump or air conditioner more than 10 years old, or a furnace or boiler more than 15 years old (ENERGY STAR, replacing).

Maintenance plans

A service contract costs $150 to $500 a year, according to Fixr, and some include a tune-up while others only give discounts on tune-ups (Fixr, maintenance). HomeGuide puts plans at $120 to $360 and says a tune-up or maintenance plan does not include repairs, replacement parts or refrigerant (HomeGuide, tune-ups). Contractors get busy once summer and winter arrive, so ENERGY STAR suggests checking the cooling system in the spring and the heating system in the fall (ENERGY STAR, maintenance).

The federal tax credit has ended

The federal Energy Efficient Home Improvement Credit, Section 25C, is not allowed for any property placed in service after December 31, 2025 (IRS FAQ). The IRS says the credit can be claimed for improvements made through December 31, 2025 (IRS, 25C). A heat pump, central air conditioner or furnace installed in 2026 gets no 25C credit (IRS FAQ). For 2023 to 2025 installs the credit was 30%, capped at $2,000 per year for qualified heat pumps (IRS, 25C). Older articles that quote those numbers are out of date.

Duke Energy rebates

Duke Energy's Smart $aver program pays these rebates in North Carolina for projects completed after 8/1/2025, and the equipment must be AHRI certified with ECM motors (Duke Energy). The early replacement rebate, for swapping out a system that still works, is larger than the rebate for replacing one that has failed (Duke Energy).

• You must be a Duke Energy electric customer, and a participating contractor must install the equipment (Duke Energy).
• The application and its paperwork must be submitted and approved within 60 days of the date of service (Duke Energy).
• Program-specific duct sealing is required with central air conditioner and heat pump replacements (Duke Energy).
• A new gas furnace does not qualify for a rebate (Duke Energy).
• Conversions pay more: $1,500 for replacing an electric furnace, baseboard or radiant heat with an air-source heat pump or mini/multi split, and $2,000 for converting a heat pump to dual fuel with a furnace of at least 80% AFUE, or $2,500 as an early replacement (Duke Energy). The dual fuel rebate needs an existing heat pump with electric resistance strip heat serving at least 1,000 sq. ft. (Duke Energy).
• For the early replacement rebate, the old system must still heat and cool, with no failed compressor, cracked heat exchanger or large refrigerant leak (Duke Energy).

Households with incomes under 150% of the area median income, including renters with the landlord's approval, may also qualify for rebates through Energy Saver North Carolina (Energy Saver NC). If the program pays toward a heat pump, the contractor must do a Manual J load calculation to size it (Energy Saver NC, HEAR). This guide does not give the program's dollar limits; check them on its site.

Licenses: who may do this work in North Carolina

Anyone who contracts to install, alter or restore a heating system needs a license from the State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors, and its heating license includes air conditioning (NC heating board). The licensing law names the equipment homeowners usually replace: condensing units, air handlers, gas furnaces and package units (G.S. 87-21).

The license depends on doing or offering the work for pay, not on the size of the job (G.S. 87-21). That is different from a general contractor license, which starts at jobs of $40,000 or more (G.S. 87-1). Anyone who installs a heating system in a house meant for sale or rent counts as a heating contractor even without being paid (G.S. 87-21).

Minor repairs fall outside the licensing law (G.S. 87-21). The statute counts replacing a part such as a compressor, coil, contactor, motor or capacitor as a minor repair, as long as it needs no change in energy source, fuel type, or the routing or sizing of venting or piping (G.S. 87-21). Refrigerant work is a separate federal matter, covered below.

License classes

• H-1, heating group number one, covers heating with steam or hot water, such as boilers (G.S. 87-21).
• H-2 covers air systems with more than fifteen tons of cooling, but such systems in single-family homes fall under group three whatever their size (G.S. 87-21).
• H-3 covers heating and cooling through ducts with 15 tons of cooling or less (G.S. 87-21).

Each group comes as Class I, for all buildings, or Class II, for single-family detached homes only (G.S. 87-21). The board's search shows them as, for example, "Heating Group 3 - Class I Contractor" (License search). The sources for this guide do not say whether a Class II license covers an attached townhouse. If you live in one, ask the board before you hire.

The contractor's license number must appear on every proposal, contract and permit request (G.S. 87-21). A retailer may sell you a system without a license of its own only if a licensed contractor approves the design and installs it, the contract carries that contractor's name and license number, and the retailer gives at least a one-year warranty on installation defects (G.S. 87-21).

How to check a license

The board's online license search lets you look up a contractor by license number, company, name, phone or city, and at least one field must be filled in (License search). The NC Attorney General's office also tells homeowners to check the license held by an HVAC installer before hiring (NC Attorney General).

Anyone can file a complaint with the board, including against an unlicensed person who offers heating or air conditioning work that needs a license (Board complaints). Once filed, a complaint cannot be dropped or withdrawn, and it will be investigated (Board complaints). The board can act against a license for gross negligence, incompetency or misconduct (G.S. 87-23). Contracting the work without the required license is a Class 2 misdemeanor (G.S. 87-25). The board warns that you have few options if you hire an unlicensed contractor, and that few of them carry adequate insurance (NC heating board).

Refrigerant: a federal certification

Under Section 608 of the Clean Air Act, technicians who maintain, service, repair or dispose of equipment that could release refrigerant must be certified, and the certification does not expire (EPA, technician certification). Only certified technicians can buy refrigerant for home air conditioners and heat pumps (EPA, refrigerant sales), and venting refrigerant on purpose during service or disposal is prohibited (EPA, venting).

U.S. production and import of R-22 (HCFC-22) ended on January 1, 2020, but you may keep using it in an existing system for as long as necessary (EPA, R-22). For home air conditioner and heat pump systems installed from January 1, 2025, EPA limits the refrigerant's global warming potential to 700 (EPA, HFC limits). EPA's May 2026 rule set no installation deadline for systems whose components were all made or imported before January 1, 2025, so that older stock can be installed until it runs out (EPA, HFC limits, EPA fact sheet, May 2026).

Permits in Raleigh, Durham, Cary and Chapel Hill

North Carolina law requires a permit to install, extend, alter or make a general repair to any heating or cooling system (G.S. 160D-1110). The state's permit exemption for home work of $40,000 or less does not cover adding, replacing or changing the design of heating or air conditioning equipment (G.S. 160D-1110). When a licensed contractor replaces a gas or electric appliance in an existing home, the town may require only one permit, and it may cost no more than one trade permit (G.S. 160D-1110).

Where the law calls for a licensed contractor, the town cannot issue the permit unless one will do the work (G.S. 160D-1110). The state board says a furnace replacement needs a permit and an inspection, that pulling permits is the contractor's job, and that a contractor who asks you to get the permit in your own name could be unlicensed or in trouble with inspectors (NC heating board).

Raleigh

Raleigh lists an HVAC replacement among the projects that need a permit but no plans (Raleigh permits). Installing new equipment, rather than replacing it, needs a plot plan (Raleigh permits). A homeowner acting as the contractor must file the Owner Exemption Affidavit, and the City warns that homeowner's insurance may not cover problems caused by unpermitted work (Raleigh permits).

Raleigh's fee guide for July 1, 2026 to June 30, 2027 has no separate line for a residential HVAC changeout, and it says any fee not listed is charged at the minimum permit fee (Raleigh fee guide). It lists a minimum trade permit fee of $124 per trade ($129 with the City's 4% technology surcharge), and a re-inspection costs $122 per inspection per trade ($127 with the surcharge) (Raleigh fee guide). This guide could not confirm from the City's documents whether a changeout is charged the $124 minimum or another amount, so ask your contractor what the permit will cost.

Durham

Durham City-County Building & Safety charges $65 to replace or convert a home heating or cooling system, which includes one inspection, and $50 for each further inspection (Durham mechanical fees). Work begun without a permit is charged double (Durham mechanical fees). That schedule is marked effective 7/1/18, and it is still the one linked from the department's Fee Schedules page (Durham fee schedules). This guide could not confirm that Durham still charges those amounts in 2026.

Durham's inspection page lists a rough-in, after the equipment is installed and before any ducts are covered, a final, and a duct leakage test if the energy code calls for one; it does not say which apply to a changeout (Durham inspections), and the $65 changeout fee covers one inspection (Durham mechanical fees). Paying for a trade permit requires a contractor log-in with a Land Development Office account, so in practice the contractor pulls the permit (Durham payment menu).

Cary

The Cary details below were checked on the Town's site on October 22, 2026.

Cary handles heating and air (HVAC) replacements, including geothermal heat pumps, as online administrative permits with no plan review (Cary online permits). These permits are expedited and can often be issued within about 24 hours (Cary online permits). They cover single-family detached homes, townhomes and duplexes, and paper applications are not accepted (Cary online permits). The Town's Building Permits page repeats the state rule that work on a heating or cooling system needs a permit (Cary building permits). This guide did not find what Cary charges for a residential HVAC replacement permit.

Chapel Hill

Chapel Hill requires a Trade Work permit, meaning a permit for a project with only one trade, to install, extend, repair or alter any heating or cooling equipment system (Chapel Hill trade permits). Its residential mechanical fee is $70 for a heat pump, gas pack or gas piping, and a $35 minimum for each interconnected appliance, piece of equipment or connection, such as ductwork (Chapel Hill fees).

If an inspection fails, Chapel Hill charges $60 for each of the first two rejected inspections of a type, doubling after that (Chapel Hill fees). An 8% Orange County recyclable materials fee is charged on all permits issued in Orange County, and fees double for work started without a permit (Chapel Hill fees). The fee page shows no adoption date, and this guide could not confirm the all-in permit cost for a typical heat pump changeout in Chapel Hill.

For any of the four towns, this guide did not find how long an HVAC inspection takes to schedule. Nor did it find whether Raleigh, Cary or Chapel Hill ask for a duct leakage test or a copy of the load calculation on a like-for-like replacement.

Triangle conditions that matter

Long, humid summers

At the Raleigh-Durham (RDU) weather station, the 1991 to 2020 normal high for July is 90.8°F (NWS, July 2026). July 2026 had 19 days at or above 90°F, against 27 in July 2025, and the average relative humidity that month was 71% (NWS, July 2026). July 2025 was the warmest July on record for Raleigh, and its average dew point of 69.8°F was the highest for any July since 1946 (NC Climate Office).

ENERGY STAR says poor equipment operation, the wrong equipment and leaky ductwork can leave a house too humid in summer (ENERGY STAR, replacing). Poor airflow can bring lower efficiency, higher bills, overly damp air, less comfort and a shorter equipment life (ENERGY STAR, installation).

Mild winters that still freeze

The normal January low at RDU is 31.8°F (NWS, January 2026). January 2026 had 20 nights at or below freezing, and the lowest reading was 15°F on January 27 (NWS, January 2026). The U.S. Department of Energy says that in moderate climates, heat pumps can be an energy-efficient alternative to furnaces and air conditioners (U.S. DOE). If you have a gas furnace and need a new air conditioner, Duke Energy suggests an add-on heat pump, called dual fuel: the heat pump carries 80 percent or more of the heating load and the furnace runs only on the coldest days (Duke Energy).

Sizing: North Carolina's load calculation rule

A state board rule covers sizing. When a furnace, condenser, package unit or air handler is replaced in an existing home, the licensed contractor or technician must do at least a whole-house block load calculation (21 NCAC 50 .0505). They must give you the sizing record if you ask for it, and keep it for six years (21 NCAC 50 .0505). If no load calculation was done, or the board later finds the new unit undersized or oversized, the installation counts as evidence of incompetence (21 NCAC 50 .0505).

For a newly built home, the contractor must do a room-by-room load calculation before the system goes in (21 NCAC 50 .0505). Separately, the rule says every newly installed home heating or cooling system must keep rooms and floors within 4°F of each other, with a separate system or automatic zoning for each floor on a multilevel home; it does not say whether a replacement counts as newly installed (21 NCAC 50 .0505).

ENERGY STAR suggests asking each bidder whether they will measure your home and size the equipment using Manual J (ENERGY STAR bid checklist). Oversized equipment may cycle too often, which means less comfort and a shorter life (ENERGY STAR, installation). ENERGY STAR also says more than half of new systems in U.S. homes do not reach their rated efficiency because of improper installation, which can cut performance by as much as 30% (ENERGY STAR bid checklist).

Federal efficiency minimums for the Southeast

Federal efficiency rules put North Carolina in the Southeast region (10 CFR 430.32). There, a split-system central air conditioner must reach at least 14.3 SEER2 if its certified cooling capacity is under 45,000 Btu/hr, or 13.8 SEER2 at 45,000 Btu/hr and up (10 CFR 430.32). An outdoor unit cannot be installed in the region if any certified pairing of it rates below the standard (10 CFR 430.32). Split-system heat pumps must reach 14.3 SEER2 and 7.5 HSPF2, and single-package heat pumps 13.4 SEER2 and 6.7 HSPF2 (the national minimum) (10 CFR 430.32).

Gas furnaces must be at least 80% AFUE today (10 CFR 430.32). The current federal text raises the minimum to 95% for non-weatherized gas furnaces made on or after December 18, 2028 (10 CFR 430.32). This guide did not check for later rule changes or court challenges to that date.

Hiring: questions to ask and red flags

Questions to ask

• What is your license number and class? It must be on every proposal, contract and permit request (G.S. 87-21). Look it up on the board's search (License search). A ducted heating and cooling system in a single-family home falls under heating group three whatever its size; a boiler or other hot-water system is group one (G.S. 87-21).
• Will you do a load calculation and give me the sizing record? The board's rule requires at least a whole-house block load calculation on a replacement (21 NCAC 50 .0505). ENERGY STAR says a contractor should size the system based on the size of your house, its insulation and its windows (ENERGY STAR hiring tips).
• Who will pull the permit? The board says that is the contractor's job (NC heating board).
• Are your technicians EPA Section 608 certified? Anyone who services equipment that could release refrigerant must be (EPA, technician certification).
• Are you a participating contractor in Duke Energy's Smart $aver program, and does your price include the program's duct sealing? The rebate needs both (Duke Energy).
• Who registers the equipment warranty? Carrier, for example, offers extended coverage only if the equipment is registered within 90 days of installation (Carrier). Otherwise its standard 5-year parts-only limited warranty applies, and its 5-year parts plus 3-year labor option needs an installing dealer that takes part in Carrier's program (Carrier).

What the written proposal should say

ENERGY STAR advises signing a written proposal before work starts, setting out project costs, model numbers, the job schedule and warranty information (ENERGY STAR hiring tips). The state board says the contract should describe the work and the equipment, with brand names, sizes and model numbers, and list all costs clearly (NC heating board). Payments should follow the stages of the work, and the contractor should give you the manufacturers' written warranties (NC heating board). Get at least three estimates, and do not automatically take the lowest (NC heating board).

Red flags

• A contractor who arrives at your home and announces a "serious" problem that must be fixed immediately (NC heating board).
• Pressure to pay part or all of the price in advance, or to pay up front so the contractor can buy equipment (NC heating board). The NC Attorney General's office says not to pay large amounts in advance (NC Attorney General).
• A contractor who says he works under another contractor's license, which is illegal (NC heating board).
• A request that you get the permit in your own name (NC heating board).
• A service or repair at a low advertised rate that turns into a list of expensive, alarming problems said to need attention right away. The Attorney General's office calls these up-sells (NC Attorney General, scams).

Your right to cancel

Under North Carolina law, a sale of $25 or more made at your home, rather than at the seller's place of business, can be cancelled until midnight of the third business day after the sale (G.S. 14-401.13). The seller must give you a written cancellation form and tell you about the right aloud (G.S. 14-401.13).

A repair visit you asked for is exempt (G.S. 14-401.13). But if the seller sells you goods or services beyond the replacement parts used in the repair, that extra sale is not exempt, so a new system sold during a repair call can still be cancelled (G.S. 14-401.13). In a real emergency, you give up the right only by handing the seller a separate dated and signed statement, in your own handwriting, that describes the emergency and waives the right to cancel (G.S. 14-401.13). The federal FTC Cooling-Off Rule gives the same three-business-day right for sales of $25 or more made at your home (16 CFR 429).