Houston homeowners can expect to pay between $5,500 and $18,000+ for AC replacement depending on system size, efficiency, and installation complexity.

AC Replacement Cost in Houston: Quick Answer

The average cost to replace an air conditioning system in Houston ranges from:

• $5,500 – $8,500 → Basic systems (Goodman / entry-level)
• $8,500 – $12,500 → Mid-range systems (Daikin / Trane / Lennox)
• $12,500 – $18,000+ → High-efficiency or full system upgrades

👉 Final pricing depends on your home size, ductwork condition, and system efficiency.

AC Cost by Tonnage (Houston Market)

👉 In Houston, most homes use 3 to 5 ton systems due to extreme heat.

What’s Included in an AC Replacement?

A complete HVAC replacement typically includes:

• Outdoor condenser unit
• Indoor evaporator coil or air handler
• Refrigerant line flush or replacement
• Electrical connections
• Drain line + safety float switch
• Thermostat (basic or smart)
• System startup and testing

What Can Increase the Price?

1. Ductwork Replacement

If ducts are damaged or undersized:

• Add $2,000 – $6,000

2. Electrical Upgrades

• New disconnect / breaker → $300 – $1,200

3. Permits (Houston Area)

• Typically $150 – $500

4. High-Efficiency Systems (SEER2)

• Higher SEER = higher cost but lower energy bills

Best AC Brands for Houston Homes

Budget-Friendly AC Brands

• Goodman
• Amana

Mid-Range AC Brands

• Daikin
• Rheem

Premium AC Brands

• Trane
• Lennox

👉 At APCA Supply, we recommend systems based on:

• Home size
• Usage
• Budget
• Energy efficiency goals

R-410A vs R-454B Refrigerant (2026 Update)

New HVAC systems are transitioning to R-454B refrigerant.

Key Differences

• Lower environmental impact
• New equipment required
• Slightly higher upfront cost

👉 If you’re replacing your system in 2026, this matters.

How to Save Money on AC Replacement

• Replace during off-season (fall/winter)
• Choose the right tonnage (not oversized)
• Bundle full system (better pricing)
• Ask about financing options

Houston-Specific AC Installation Considerations

Houston homes require:

• Higher-capacity systems
• Proper humidity control
• Strong airflow design

👉 Poor installation = higher energy bills + shorter system life

Where to Buy AC Units in Houston

If you’re a contractor or homeowner looking to purchase equipment:

👉 Visit APCA Supply for:

• Condensers
• Air handlers
• Complete HVAC systems
• Installation kits

We offer:

• Competitive pricing
• Fast local delivery
• Expert support

Need Help Choosing the Right AC System?

Choosing the wrong system can cost thousands.

👉 Contact APCA AC & Heating Repair (832) 906-4822 for:

• System sizing
• Installation
• Full HVAC replacement

Frequently Asked Questions

How long does AC replacement take?

Usually 1 day, depending on complexity.

Should I replace the furnace and AC together?

Yes — better efficiency and compatibility.

What size AC do I need?

Depends on:

• Square footage
• Insulation
• Ceiling height
• Windows