
When Repair Is No Longer Cost-Effective, We’re Ready
Your heat pump should last 10 to 15 years in Charleston. After that, repair costs increase, efficiency decreases, and the system that used to cool your home in July may no longer cool rooms evenly. At Carney & Son 72 Degrees, we replace heat pumps every week. Three generations of our family have helped Lowcountry homeowners decide when it’s time and what to put in.
When a Replacement Beats a Repair
Replacement isn’t always the right call. We won’t sell you a new system if your current one has good years left. Replacement is usually the better option when:
- The unit is over 10 years old and needs major work
- You’ve called for repair more than twice in the last two years
- Energy bills have crept up without any change in your routine
- Refrigerant leaks keep coming back
- The compressor is failing, and the system uses old R-22 refrigerant
If a single repair quote is more than half the cost of a new system, replacement is almost always the better long-term choice.
How We Handle Heat Pump Replacements
Every replacement starts with a conversation, not a sales pitch.
- Assessment of your current system. We diagnose what’s actually wrong, check the age, and pull efficiency data. If repair still makes sense, we’ll say so.
- Right-sizing the new unit. A replacement is the right time to make sure the original sizing was correct. Oversized systems short cycle. Undersized systems run for long periods without properly reaching the set temperature. We measure and confirm.
- Equipment options. You see two or three matched options across efficiency tiers. We explain current SEER2 and HSPF2 ratings, warranty differences, and rebate eligibility.
- Removal and installation. We pull the old system, recover the refrigerant safely, and install the new unit. Most jobs finish the same day.
- Walkthrough and registration. We register the warranty, set up your thermostat, and show you how to use the new system before we leave.
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Why Choose Carney & Son 72 Degrees?
- Local Expertise: Serving the Greater Charleston area with a deep understanding of regional climate challenges for over 40 years!
- Skilled Technicians: Our team is trained to handle all heat pump brands and models with precision.
- Customer-Centric Approach: We prioritize your comfort and satisfaction with transparent communication and reliable service. We offer 100% Satisfaction Guarantee!
Contact Us Today!
Don't let heat pump issues compromise your comfort. For expert repair, maintenance, installation, or replacement services, reach out to Carney & Son 72 Degrees.
What’s Included
- Removal and disposal of your old heat pump
- New outdoor condenser and indoor air handler, properly sized
- Updated refrigerant lines, electrical, and thermostat as needed
- Permits and inspections
- 2-year labor warranty
- Manufacturer parts warranty registration
Signs Your Heat Pump May Need Replacement
- Heating or cooling output keeps dropping
- Strange noises (grinding, rattling, squealing) at startup
- Frequent short cycling
- Visible refrigerant leaks or icing on the outdoor unit
- Energy bills well above last year for similar usage
- The system is over 12 years old
You don’t need to wait for total failure. Replacing an aging or unreliable system on your schedule is always cheaper than replacing it during a 95-degree week.
Financing and the Preferred Comfort Club
Heat pump replacement is a planned expense, but it’s still a real one. We offer 0% financing for 18 months on approved credit, and our Preferred Comfort Club Membership keeps your new system covered with two annual tune-ups and member discounts on future repairs.
Appointments Scheduled Within 24 Hours
Technician Seal of Safety
0% Financing for 18 Months
2-Year Labor Warranties
Licensed & Insured Technicians
100% Satisfaction Guaranteed
BBB-Accredited Business with an A+ Rating
HomeAdvisor Screened & Approved
Over 40 Years of Experience


Ready for a Smarter Heat Pump Replacement?
Contact Carney & Son to schedule your heat pump replacement consultation. We’ll take a careful look at your current system, walk you through your options, and give you an honest recommendation based on your home, comfort needs, and budget. If replacement is the right move, you’ll receive a clear written quote so you know exactly what to expect before any work begins.
FAQ
How long does heat pump replacement take?
Most replacements finish in one day. We pull the old unit, install the new one, test the system, and walk you through it.
Do I have to replace both the indoor and outdoor units?
Usually yes. Mismatched indoor and outdoor units lose efficiency and often void manufacturer warranties. We almost always replace as a matched system.
Are there rebates for replacing my heat pump?
Sometimes, yes. Federal tax credits and utility rebates change year to year. We’ll tell you what’s available when we quote.
What happens to my old heat pump?
We haul it away and dispose of it properly, including safe refrigerant recovery.
Areas We Serve:
- Charleston, SC
- Goose Creek, SC
- James Island, SC
- Johns Island, SC
- Kiawah Island, SC
- Mount Pleasant, SC
- North Charleston, SC
- Seabrook Island, SC
- Sullivan’s Island, SC
- Summerville, SC

