AC Installation in Opelika, AL: Honest Guidance, Correct Sizing, and Verified Performance
Licensed HVAC professionals serving Opelika, Auburn, and Lee County for more than 40 years. HVAC License #15068. Caswell is headquartered in Opelika.
When an Opelika homeowner starts looking for AC installation, it is usually because a technician has just told them their system cannot be repaired cost-effectively, or because repeated repair bills have made the decision for them.
Caswell Heating Air has installed and replaced AC systems throughout Opelika and Lee County for more than 40 years. Our technicians perform a load calculation before recommending any equipment and provide written estimates for both repair and replacement when the decision is close, so homeowners can make an informed choice rather than a pressured one.
Schedule your AC installation consultation online with Opelika’s most reviewed HVAC company.
When Replacement Makes Sense: and When It Does Not
This is the conversation most HVAC contractors avoid having directly. Caswell does not avoid it, because a homeowner who understands the decision criteria makes better choices and trusts the company more for having explained them clearly.
Replacement is the right call when: the system is over 15 years old and facing a compressor failure or refrigerant leak requiring a major repair; when the system uses R-22 refrigerant (phased out in 2020 and now very costly to service); when repair costs in a single season have exceeded 30 to 40 percent of the replacement cost; or when an efficiency upgrade from a 10 SEER system to a new 14.3 SEER2 minimum system would produce utility savings that meaningfully offset the replacement cost within five to seven years.
Repair is the right call when: the system is under 10 years old, and the failure is a single component; when the repair cost is less than 20% of replacement cost; or when the system was properly maintained and is performing efficiently at its current age.
Alabama falls in the DOE South region, where the U.S. Department of Energy sets the minimum SEER2 efficiency standard for new split system installations at 14.3, higher than Northern states because of Alabama’s extended cooling season. A new system at this minimum delivers meaningfully better efficiency than the pre-2023 equipment still running in many Opelika homes. Our technicians explain the projected efficiency difference in plain language and leave the replacement decision with the homeowner.
Official one described the experience of going through system selection with the Caswell team:
“Super smooth experience. Very knowledgeable and willing and able to take the time to explain all available options. I love my new unit, and had a great experience with every member of the Caswell team. Great service. Thank you!”
Why Opelika’s Housing Stock Requires a Load Calculation
Opelika is Lee County’s county seat and commercial hub, with a residential mix that spans newer subdivisions on the city’s growing edges and older neighborhoods close to downtown, where homes from the 1960s through 1980s are still running original ductwork. A load calculation that accounts for the actual square footage, ceiling height, insulation levels, window area, and orientation of the specific home is not optional, it is the only way to select the right tonnage.
Older Opelika homes present a specific installation challenge: ductwork that was designed for equipment running at a different capacity or external static pressure than modern, higher-efficiency systems. A new variable-speed system installed on a duct system designed for an older single-stage unit may not perform at the efficiency ratings it was sold for if the duct system cannot support the airflow requirements. Caswell technicians assess duct condition as part of every installation consultation and advise the homeowner on duct compatibility before equipment is selected.
New construction in Opelika’s growing residential areas presents its own requirements: correct equipment sizing for a home where insulation quality is higher and air sealing is tighter than older stock, meaning the same square footage often requires less tonnage than a rule-of-thumb estimate would suggest.
Our AC Installation Process in Opelika
Step 1: Load Calculation and Equipment Selection. Manual J load calculation based on the home’s actual measurements. Equipment options at the Alabama SEER2 minimum and at higher-efficiency tiers, with projected operating cost differences explained before any decision is made.
Step 2: Duct System Assessment. Existing ductwork is inspected for compatibility with the selected equipment. If duct modifications are needed, they are included in the written estimate before the installation is scheduled.
Step 3: Old Equipment Removal. The existing outdoor unit and indoor air handler are removed and disposed of as part of the installation scope. Refrigerant is recovered in compliance with EPA Section 608 requirements before disconnection.
Step 4: Installation. New outdoor unit set on a level pad with correct clearances. Indoor air handler installed, refrigerant lines connected and pressure-tested before charging, and all electrical connections verified at the disconnect and panel. System charged to manufacturer specification using a refrigerant manifold gauge set.
Step 5: Performance Verification. Every Caswell installation closes with a full measurement pass under operating conditions, refrigerant pressures on both sides of the circuit, amperage draw at the compressor and blower, and temperature differential at the supply registers. A correctly installed and sized system delivers 16 to 22 degrees Fahrenheit of temperature differential under normal load. You receive a written installation record covering all measurements, equipment installed, and warranty terms before the technician leaves.
Why Choose Caswell Heating Air for AC Installation in Opelika
- Serving Opelika, Auburn, Phenix City, and Lee County for more than 40 years. Opelika is our home base.
- HVAC License #15068 issued by the State of Alabama.
- Fully insured: general liability and workers’ compensation.
- 5.0 stars across 663 verified Google reviews. Voted Best of Auburn-Opelika 2024.
- Honest repair vs. replace guidance, written estimates for both options when the decision is close.
- Manual J load calculation before any equipment recommendation.
- Duct system assessment is included in every installation consultation.
- Written estimate before any work begins.
- Financing available for qualifying system replacements. See financing options
- Current specials on new system installations. View specials
- Comfort Club membership includes priority scheduling and maintenance benefits. See membership
- After installation, our team handles AC maintenance to keep the new system at rated performance each season and AC repair if a problem develops.
- For urgent situations before a planned installation, 24-hour emergency HVAC service is available.
Brian Lazcano described the Caswell Heating Air team from the first call through a completed job:
“From the moment I called to the moment the job was done, the service was flawless. The crew showed up on time, full of energy, and got my system running like brand new. They went above and beyond.” Read the full review
Schedule AC Installation in Opelika Today
Caswell Heating Air installs central AC systems and heat pumps throughout Opelika, Auburn, Phenix City, Beauregard, and surrounding Lee and Russell County communities. Every installation begins with a load calculation and an honest conversation about the repair versus replace decision. Every system is tested under load before we leave. Every installation is documented with a written record.
Schedule your AC installation consultation online and get a written estimate before any commitment is made.
Frequently Asked Questions About AC Installation in Opelika, AL
How do I know if I need a new AC or just a repair?
The general threshold: if the system is over 15 years old and facing a major component failure, or if repair costs this season have exceeded 30 to 40 percent of replacement cost, replacement is usually the better investment. Caswell provides written estimates for both options when the decision is close, so you can compare them without pressure.
What size AC system does my Opelika home need?
Correct sizing requires a Manual J load calculation, not a square-footage rule of thumb. Caswell performs this calculation before recommending any equipment. Older Opelika homes often differ significantly from what a simplified estimate would suggest due to ductwork configuration, insulation age, and ceiling height.
What efficiency rating is required for new AC installations in Alabama?
Alabama is in the DOE South region. New split system installations must meet a SEER2 minimum of 14.3 as of January 1, 2023. Caswell installs systems at or above this standard and explains the projected operating cost difference between efficiency tiers.
Does Caswell remove the old AC unit?
Yes. Removal and disposal of the existing equipment is included. Refrigerant is recovered per EPA Section 608 requirements before disconnection.
Is financing available for AC installation in Opelika?
Yes. Financing is available for qualifying system replacements. See financing options
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