HVAC Repair & Replacement Costs in Orange County
An honest, no-pressure breakdown of what a new AC, furnace, or heat pump system really costs in Orange County in 2026 – plus financing and how to avoid overpaying.
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What a New HVAC System Costs in Orange County (2026)
Replacing your heating and cooling system is one of the biggest investments you will make in your home – and prices have climbed 18 to 25 percent since 2023 because of new refrigerant rules, higher efficiency standards, and a labor shortage. Here are honest, real-world Orange County numbers for 2026 so you know what to expect before anyone knocks on your door.
2026 Orange County price ranges
| System Type | Base Installed Price | Home Size |
|---|---|---|
| 3-Ton AC plus Furnace | $13,000 to $15,000 | 1,200 to 1,500 sq ft |
| 4-Ton AC plus Furnace | $15,000 to $17,000 | 1,700 to 2,000 sq ft |
| 5-Ton AC plus Furnace | $16,000 to $18,000 | 2,000 to 2,500 sq ft |
| 3-Ton Heat Pump | $11,000 to $13,000 | 1,200 to 1,500 sq ft |
| 4-Ton Heat Pump | $12,000 to $14,000 | 1,700 to 2,000 sq ft |
| 5-Ton Heat Pump | $13,500 to $15,500 | 2,000 to 2,500 sq ft |
| Premium high-efficiency system | Above base price, quoted per home | varies by home |
| Ductwork replacement (if needed) | $4,000 to $12,000 | about 1 in 3 homes |
Prices shown are starting prices for base-model systems. Higher-efficiency and two-stage systems cost more. Ranges include removing your old equipment, a new pad, electrical and permit work, and a manufacturer warranty. Every home is different – we always give you a free, exact quote.
What is driving prices up in 2026
What a proper installation includes
Heat pump or gas furnace plus AC?
Because Orange County winters are mild, a heat pump is the right choice for most homes. One efficient system handles both heating and cooling, you can save roughly $400 to $900 a year versus gas.
Financing
Flexible financing is available on new systems with approved credit. Ask for the current terms when we quote.
What size system do I need?
We never guess – we run a proper load calculation on your home so you get the right size.
Red flags when comparing quotes
- A full-system quote far under $9,000 (usually cheap offshore equipment or cut corners)
- No permit pulled
- No load calculation
- High-pressure, “today only” pricing
- A “cash discount” to skip the paperwork
Get at least three quotes and compare them line by line.
Heat Pump Installation Cost in Orange County
A heat pump replaces both your AC and your furnace with one electric system. These are 2026 starting prices for base-model systems, fully installed.
| Heat Pump Size | Base Installed Price | Home Size |
|---|---|---|
| 3-Ton Heat Pump | $11,000 to $13,000 | 1,200 to 1,500 sq ft |
| 4-Ton Heat Pump | $12,000 to $14,000 | 1,700 to 2,000 sq ft |
| 5-Ton Heat Pump | $13,500 to $15,500 | 2,000 to 2,500 sq ft |
The price includes the outdoor heat pump, the indoor air handler and coil, a new pad, a smart thermostat, the city permit and HERS test, and removal of your old furnace and AC. Replacing an existing heat pump costs about the same as a first-time install, because the indoor and outdoor units are replaced together.
AC and Furnace Replacement Cost by Size
If you want to keep gas heat, the AC, the indoor coil and the furnace are replaced together as one matched system.
| System Size | Base Installed Price | Home Size |
|---|---|---|
| 3-Ton AC plus Furnace | $13,000 to $15,000 | 1,200 to 1,500 sq ft |
| 4-Ton AC plus Furnace | $15,000 to $17,000 | 1,700 to 2,000 sq ft |
| 5-Ton AC plus Furnace | $16,000 to $18,000 | 2,000 to 2,500 sq ft |
AC-Only Replacement Cost in Orange County
Replacing just the air conditioner, meaning a new outdoor condenser and indoor coil while keeping your existing furnace, runs $7,500 to $9,500 installed for a 3-ton system, $9,000 to $11,000 for a 4-ton and $10,000 to $12,000 for a 5-ton. This works when the furnace is still in good shape. If the furnace is near the end of its life, ask us to quote both so you can compare.
Furnace Replacement Cost in Orange County
Replacing a gas furnace on its own, while keeping your existing AC, runs $5,500 to $6,500 installed in most Orange County homes. The exact price depends on the furnace size and where it sits in your home, such as a closet, garage or attic.
New HVAC System Cost by Home Size
Square footage is the fastest way to estimate what size system you need and what it will cost. Ranges below are base-model prices and cover both heat pump and AC-plus-furnace systems.
| Home Size | Typical System Size | Base Installed Price |
|---|---|---|
| 800 to 1,000 sq ft | 2 ton | $11,000 to $13,000 |
| 1,200 to 1,500 sq ft | 3 ton | $11,000 to $13,000 as a heat pump or $13,000 to $15,000 as an AC with a new furnace |
| 1,700 to 2,000 sq ft | 4 ton | $12,000 to $14,000 as a heat pump or $15,000 to $17,000 as an AC with a new furnace |
| 2,000 to 2,500 sq ft | 5 ton | $13,500 to $15,500 as a heat pump or $16,000 to $18,000 as an AC with a new furnace |
Square footage is only a starting point. Insulation, windows, ceiling height and sun exposure all change the answer, so we run a load calculation on your home before we quote.
Quick Answers on Replacement Cost
How much does a 3-ton AC unit cost installed?
In Orange County in 2026, a 3-ton system runs $11,000 to $13,000 as a heat pump and $13,000 to $15,000 as an AC with a new furnace.
How much does a 4-ton system cost installed?
A 4-ton system runs $12,000 to $14,000 as a heat pump and $15,000 to $17,000 as an AC with a new furnace.
How much does it cost to replace just the AC unit?
An AC-only replacement, with a new condenser and coil and your existing furnace kept, runs $7,500 to $9,500 installed for a 3-ton system, $9,000 to $11,000 for a 4-ton and $10,000 to $12,000 for a 5-ton.
How much does it cost to replace a furnace?
A furnace-only replacement runs $5,500 to $6,500 installed in most Orange County homes.
How much does a new HVAC system cost for a 1,500 sq ft house?
Most 1,500 sq ft Orange County homes take a 3-ton system, which runs $11,000 to $13,000 as a heat pump or $13,000 to $15,000 as an AC with a new furnace installed.
How much does a new HVAC system cost for a 2,000 sq ft house?
Most 2,000 sq ft homes take a 4-ton system, which runs $12,000 to $14,000 as a heat pump or $15,000 to $17,000 as an AC with a new furnace installed.
HVAC Repair Costs in Orange County (2026)
Not every problem means a new system. Most repairs cost a small fraction of a replacement. Below are typical Orange County prices for 2026 with parts and labor included. Like most reputable companies, we credit your diagnostic fee toward the repair when you move forward. Final price depends on your equipment, accessibility, and parts availability.
| Common Repair | Typical OC Cost | Notes |
|---|---|---|
| Service / diagnostic call | $89 – $169 | Often credited toward the repair |
| Capacitor replacement | $150 – $450 | Most common AC failure; quick fix |
| Contactor replacement | $150 – $400 | Electrical switch in the condenser |
| Hard-start kit | $150 – $350 | Helps an aging compressor start |
| Condenser fan motor | $350 – $750 | The fan on top of the outdoor unit |
| Blower motor – standard (PSC) | $300 – $700 | Moves air through your home |
| Blower motor – variable speed (ECM) | $450 – $1,500 | Higher-efficiency variable motor |
| Refrigerant leak detection & repair | $250 – $1,500 | Depends on leak location |
| Refrigerant recharge (R-410A) | $75 – $150 / lb | Typical AC holds 6 – 12 lbs |
| Refrigerant recharge (R-454B / R-32) | $100 – $200 / lb | Newer low-GWP refrigerants cost more |
| TXV / metering valve | $350 – $750 | Controls refrigerant flow |
| Condensate drain clog / pump | $150 – $450 | Clears water backups & leaks |
| Thermostat – standard | $150 – $350 | Includes install |
| Thermostat – smart (Nest / ecobee) | $250 – $550 | Includes install & setup |
| Furnace ignitor | $150 – $400 | Common no-heat cause |
| Flame sensor | $120 – $300 | Furnace shuts off after seconds |
| Furnace control board | $350 – $900 | The furnace brain board |
| Gas valve | $300 – $750 | Regulates gas to the burners |
| Inducer / draft motor | $350 – $800 | Vents combustion gases |
AC Repair Cost in Orange County — How Much Does It Cost to Repair an AC Unit?
Wondering about the average cost to repair an AC unit in Orange County? Most air conditioning repairs cost far less than a full replacement. For 2026, a typical AC repair cost here runs $150–$650, and the average cost to repair an AC unit lands around $350 with parts and labor included. How much it costs to repair an AC unit depends on which part failed, your system’s age and refrigerant type, and how accessible the unit is. We credit your diagnostic fee toward the repair when you move forward.
| Common AC Repair | Typical OC Cost | Notes |
|---|---|---|
| Capacitor replacement | $150–$350 | Most common AC repair; fast fix |
| Contactor replacement | $150–$350 | Worn electrical contacts |
| Refrigerant leak repair & recharge | $225–$1,600 | Varies by R-410A vs R-22 and leak size |
| Condensate drain clog clear | $100–$250 | Stops water backup and safety shutoffs |
| Condenser fan motor | $300–$650 | Restores outdoor-unit airflow |
| Blower motor | $400–$900 | Restores indoor airflow |
| Compressor replacement | $1,300–$2,800 | Often the repair-vs-replace tipping point |
If a major part like the compressor fails on an older system, weigh the AC repair cost against a new unit using the replacement and component costs above. Not sure which makes sense for your home? Get a free, no-pressure estimate — we’ll give you honest numbers for your Orange County home, day or night.
Major Component Replacement Costs
These are the expensive parts. When one of these fails on a system that is 10+ years old, it is usually worth comparing the repair against a full replacement (see “Repair or Replace?” below).
| Major Part | Typical OC Cost | Notes |
|---|---|---|
| Compressor (AC / heat pump) | $1,500 – $3,500 | The heart of the system |
| Evaporator coil (indoor) | $1,200 – $3,000 | Common refrigerant-leak point |
| Condenser coil (outdoor) | $1,000 – $2,800 | Outdoor heat-exchange coil |
| Furnace heat exchanger | $1,500 – $3,500 | Cracked = often replace the furnace |
| Refrigerant line set | $600 – $1,800 | Lines between indoor & outdoor units |
| Ductwork repair (per section) | $350 – $1,500 | Sealing or replacing damaged runs |
| Full ductwork replacement | $4,000 – $12,000 | Needed in about 1 in 3 homes |
Tune-Ups, Maintenance & Indoor Air Quality
Regular maintenance is the cheapest HVAC money you will spend – it prevents most breakdowns and keeps efficiency (and your utility bills) in check. Indoor air quality add-ons are optional upgrades that improve comfort and health.
| Service | Typical OC Cost | Notes |
|---|---|---|
| AC or heating tune-up (one system) | $89 – $199 | Recommended once per year |
| Furnace tune-up (one-time visit) | $129 ($89 fall special) | No plan or membership required |
| Standard air filter | $20 – $80 | Change every 1 – 3 months |
| High-efficiency media filter | $40 – $120 | Whole-home cabinet filters |
| Smart thermostat installed | $250 – $550 | Lowers bills, app control |
| UV germicidal light | $400 – $900 | Reduces mold & bacteria on the coil |
| Whole-home media air cleaner | $600 – $1,200 | Captures fine dust & allergens |
| Whole-home air scrubber / purifier | $1,200 – $3,000 | Active whole-house air treatment |
| Whole-house humidifier | $400 – $1,200 | Adds moisture in dry months |
| Duct cleaning | $400 – $900 | Whole-home duct system |
| Duct sealing (Aeroseal or manual) | $1,200 – $3,500 | Stops leaks, improves airflow |
Repair or Replace? How to Decide
A quick rule of thumb: multiply the repair cost by the age of your system. If the number is over about $5,000, replacement is usually the smarter long-term move. A $400 capacitor on a 6-year-old unit ($2,400) is an easy repair. A $2,500 compressor on a 12-year-old unit ($30,000) almost always points to replacement.
Lean toward repair when the system is under ~10 years old, the fix is minor (capacitor, contactor, ignitor, thermostat), and the unit is otherwise efficient. Lean toward replacement when a major part fails (compressor, heat exchanger, coil) on a 10+ year-old system, when you still run R-22 refrigerant (phased out and very expensive to recharge), or when repairs are becoming a yearly habit and energy bills keep climbing.
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Frequently Asked Questions
How much does a new HVAC system cost in Orange County?
Why have HVAC prices gone up?
Should I get a heat pump or a gas furnace and AC?
Do you offer financing?
Helpful HVAC Terms
Quick definitions for the parts and terms behind your comfort system.
Current specials & offers
Furnace Safety Tune-Up
New System Quote
A New Full System
Any Repair
What your neighbors say
I cannot thank South County Air Services enough for impeccable customer service. Behshad came out on a Saturday to check my heating unit (failing motor). He was professional, knowledgeable, courteous and thorough – extremely fair pricing, with open and honest communication. Highly recommend. Five star plus!
Super impressed with our experience. We needed to replace our 40+ year old furnace, and from the first call everything was easy and clearly explained. Responsive, great follow-up, great pricing, timely booking, installers on time and prepared, clean install, no mess left.
I am grateful to the technician who inspected my HVAC system today. I feel he did a thorough inspection and told me the truth about my unit. I had two other companies beforehand – the first gave me a report that would call for major expenditure.
You will not find a more honest and knowledgeable HVAC tech. They show up on time and are very professional, but most of all will not try to upcharge you. He could have charged me significantly more but cares about diagnosing the actual problem. I found my HVAC tech – 10 star review if I could!
It’s not often you find an honest business willing to give suggestions over the phone to troubleshoot why my HVAC wasn’t working – without charging me. After a couple minutes we determined my breaker popped and all I needed was to reset it. I appreciate Behshad and will definitely use him in the future.
I spoke with the owner on a Saturday morning and he was at my house within 45 minutes. Another company wanted $3,000 in repairs; Behshad recommended a simple $250 repair that fixed the issue. Very honest, thorough, and reliable!
I cannot thank South County Air Services enough for impeccable customer service. Behshad came out on a Saturday to check my heating unit (failing motor). He was professional, knowledgeable, courteous and thorough – extremely fair pricing, with open and honest communication. Highly recommend. Five star plus!
Super impressed with our experience. We needed to replace our 40+ year old furnace, and from the first call everything was easy and clearly explained. Responsive, great follow-up, great pricing, timely booking, installers on time and prepared, clean install, no mess left.
I am grateful to the technician who inspected my HVAC system today. I feel he did a thorough inspection and told me the truth about my unit. I had two other companies beforehand – the first gave me a report that would call for major expenditure.
You will not find a more honest and knowledgeable HVAC tech. They show up on time and are very professional, but most of all will not try to upcharge you. He could have charged me significantly more but cares about diagnosing the actual problem. I found my HVAC tech – 10 star review if I could!
It’s not often you find an honest business willing to give suggestions over the phone to troubleshoot why my HVAC wasn’t working – without charging me. After a couple minutes we determined my breaker popped and all I needed was to reset it. I appreciate Behshad and will definitely use him in the future.
I spoke with the owner on a Saturday morning and he was at my house within 45 minutes. Another company wanted $3,000 in repairs; Behshad recommended a simple $250 repair that fixed the issue. Very honest, thorough, and reliable!
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