AC Replacement Cost Calculator โ€” Spring, TX | AC Repair Expo Heating and Cooling Inc
Free ยท Instant ยท No contact info required

AC Replacement Cost Calculator
Spring & Houston, TX

Tell us about your home and get an instant Carrier system estimate with rebates, financing, and a room-by-room load calculation โ€” all in under 60 seconds.

Texas Licensed & Insured
Carrier Factory Authorized
Same-Day Estimates Available
0% Financing Available (WAC)
Call 832-479-2727
500+
Houston-area systems installed
$3,650
Max rebates & credits available
60s
To get your instant estimate
5โ˜…
Google rating across both locations
Why use this calculator?

Know what a new AC should cost before you call anyone

Most HVAC companies won't show you pricing until after a sales visit. We built this calculator so you can understand fair market pricing, compare system tiers, and see what rebates you qualify for โ€” before picking up the phone.

  • Real Carrier system pricing with AHRI-matched equipment
  • Automatically calculates CenterPoint rebates and federal tax credits
  • Recommends split systems for larger homes โ€” no oversimplification
  • Six additional pro tools for contractors and DIY homeowners
Typical Installed Ranges โ€” Spring, TX (2025)
2-ton system $7,400 โ€“ $12,200
3-ton system $8,000 โ€“ $12,800
4-ton system $9,000 โ€“ $13,800
5-ton system $10,000 โ€“ $15,000
Available rebates Up to $3,650
Ranges include outdoor unit, indoor coil, gas furnace or air handler, refrigerant lines, electrical, labor, permits, and disposal. Use the calculator below for your specific home.
โ†“ Your Free Calculator Below
Professional HVAC Tools

Free HVAC calculators, built for Houston.

Six professional tools for pricing, sizing, charging, and estimating โ€” free for homeowners and contractors.

Licensed & Insured TX
Carrier Factory Authorized
832-479-2727
Free Instant Estimate

AC Replacement Estimator

Tell us about your home. We'll calculate your recommended system size, available rebates, and starting installation range โ€” no contact info required.

1 Your Home

Tell us the basics so we can size your system correctly.

2 Optional Upgrades

Add upgrades to include in your estimate.

Call 832-479-2727

Your estimate appears here

Fill in your home details and tap "See My Estimate."

Estimates are starting ranges based on details provided and current Carrier pricing. Final pricing requires an in-home assessment. Rebate availability subject to program funding and eligibility.

Tool 01 โ€” Equal Friction Method

Duct Sizer

Size round or rectangular ducts by airflow and friction rate. Calculates velocity, pressure drop, and equivalent lengths.

1 Duct Parameters
Equal Friction Method: Residential design friction rate is typically 0.08โ€“0.10 in.w.g./100 ft. Commercial: 0.05โ€“0.10.
Velocity Guidelines
Main trunk โ€” supply700โ€“900 FPM
Branch ducts500โ€“700 FPM
Residential maximum900 FPM
Commercial maximum1,200 FPM

Results appear here

Enter duct parameters and tap Calculate.

Need a duct quote?

Our techs size and install properly โ€” every time.

Tool 02 โ€” Simplified Residential Load

Manual J Load Calculator

Room-by-room heating & cooling load estimate. Outputs BTU/hr, tons, and required CFM per room.

1 Design Conditions
2 Building Data
3 Rooms

Add a Room

Load results here

Add rooms and tap Calculate Loads.

Ready for a real Manual J?

We provide ACCA-certified load calcs with every in-home estimate.

Call Us
Tool 03 โ€” Superheat & Subcooling

Refrigerant Charge Analyzer

Calculates target superheat and subcooling, then diagnoses your actual readings against targets for R-22, R-410A, R-32, R-454B, and R-407C.

1 Refrigerant & Conditions
R-410A
R-22
R-32
R-454B
R-407C
Pressureโ€“Temp Reference

Charge diagnosis here

Enter pressures and line temperatures to diagnose.

Tool 04 โ€” Guided Sizing

AC Size Wizard

Answer four quick questions about your home. We'll calculate the right tonnage and recommend the right Carrier system.

1
Home
2
Climate
3
Build
4
Details
๐Ÿ 
8 ft
Standard
๐Ÿ›
9 ft
Common
โ›ช
Vaulted
12 ft+
1๏ธโƒฃ
1 Story
๐Ÿ 
1.5 Story
2๏ธโƒฃ
2 Stories

Your recommendation here

Complete all four steps to get your AC size.

Get an exact price?

We'll match a Carrier system to your calculated load.

Tool 05 โ€” SEER Comparison

Energy Savings Estimator

Compare SEER ratings to see annual savings, payback period, and 10-year ROI when upgrading your system.

1 System Comparison
2 Ton
24,000 BTU
3 Ton
36,000 BTU
4 Ton
48,000 BTU
5 Ton
60,000 BTU
400 (cold climate)3,000 (tropical)
IRA Tax Credit: Qualifying high-efficiency heat pumps may receive up to $2,000 federal tax credit. Efficient central AC may qualify for up to $600. Consult a tax professional.

Savings results here

Enter your system details and tap Calculate.

See exact Carrier pricing?

We'll match available rebates at the time of install.

Common Questions

AC Replacement FAQs

How accurate is this AC cost calculator?
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The estimates are based on real Carrier system pricing we install in Spring and the greater Houston area. The simplified load calculation is accurate within ยฑ10โ€“15% of a full ACCA Manual J for typical residential construction. Final pricing always requires an in-home assessment because every home has unique duct conditions, attic access, electrical panel capacity, and permit requirements.
What size AC do I need for my home in Spring, TX?
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Houston's hot, humid climate (ASHRAE Climate Zone 2A) typically requires 550โ€“650 sq ft per ton for average construction. A 1,800 sq ft home usually needs a 3-ton system; 2,400 sq ft typically needs 4 tons. Homes over 2,500 sq ft often benefit from two separate systems for better zoning and efficiency. Use the AC Size Wizard tab above to get a specific recommendation for your home's details.
What rebates are available for AC replacement in the Houston area?
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Three main incentives apply to most Houston-area homeowners: (1) CenterPoint Energy SCORE rebate โ€” up to $1,000 per qualifying high-efficiency unit for CenterPoint customers. (2) Federal 25C tax credit โ€” up to $600 for qualifying central AC systems or up to $2,000 for heat pumps under the Inflation Reduction Act. (3) Carrier Cool Cash โ€” seasonal manufacturer rebates of $300โ€“$1,650 depending on the series and current promotion. We handle all the paperwork after installation.
How long does an AC replacement take?
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Most single-system replacements in Spring and The Woodlands take 4โ€“6 hours for a straightforward swap-out. Homes requiring new refrigerant line sets, electrical upgrades, or permit inspections may take a full day. Two-system homes typically require two separate install days. We book same-day or next-day for most jobs during normal business hours.
Should I repair or replace my AC?
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The general rule: if repair cost ร— system age exceeds 50% of replacement cost, replace it. If your system is over 12 years old, uses R-22 refrigerant (phased out), or has had multiple compressor or coil issues, replacement almost always makes more financial sense โ€” especially with current rebates making new systems more accessible. Use the Energy Savings tab above to calculate exactly how much you'd save annually by upgrading to a higher-SEER system.
Do you offer financing for AC replacement?
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Yes โ€” we offer financing through Service Finance Company with terms from 12 to 84 months. Subject to credit approval. Many customers qualify for promotional 0% interest periods. Use the "Check financing options" button in the estimator results to apply, or call 832-479-2727 to discuss options before your appointment.

Serving Spring & North Houston

Licensed HVAC contractor serving the north Houston suburbs since our founding. Two locations to serve you faster.

Spring, TX
The Woodlands, TX
Tomball, TX
Conroe, TX
Cypress, TX
Klein, TX
Champions, TX
Kingwood, TX