Air Conditioning Services in Lexington & Richland Counties

Q: How long does a typical air conditioning system last in South Carolina?

Most central air systems last between 10 and 15 years. However, because our Midlands summers are so brutal, a system's lifespan heavily depends on how well it's been maintained. Skip annual service, and that lifespan can easily drop closer to the 10-year mark.

Q: Are ductless mini-split systems actually energy efficient?

Incredibly ! Traditional central AC systems lose a lot of energy pushing cold air through long runs of ductwork (especially if those ducts are in a scorching attic). Ductless mini-splits deliver cooled air directly into the room, and because you can turn off units in unoccupied rooms, you aren't wasting money cooling empty space.

Q: When should I replace my air conditioner rather than repair it?

We generally recommend the "Rule of 5,000." Multiply the age of your system by the repair cost. If the total exceeds $5,000, or if your system is over 12 years old and constantly breaking down, investing that money in a new, high-efficiency system is almost always the smarter, cheaper long-term choice.

Q: Why choose a local AC company for cooling services?

A local AC company understands the climate challenges homeowners face throughout Lexington and Richland Counties and can provide faster response times, personalized recommendations, and dependable ongoing support.

Your Local AC Company Proudly Serving the Midlands, SC Community

Available 24/7

Emergency Plumbing Service

Top-Tier Certification

HVAC Pro Certified Experts

1,500+ 5-Star Ratings

Trusted Across Lexington & Columbia

Reliable Cooling Solutions for Homes Throughout the Midlands, SC

When South Carolina temperatures rise, homeowners need a reliable AC company they can trust to keep their homes cool, comfortable, and energy efficient. Kay Plumbing, Heating & Cooling provides professional air conditioning and cooling services throughout Lexington County, Richland County, and the surrounding Midlands SC communities.

Whether you need fast AC repair, high-efficiency installation, seasonal maintenance, or a mini-split upgrade, trust us for honest guidance, superior workmanship, and true customer satisfaction.

Since 2008, our family-owned AC company has committed to keeping homes in Lexington, Irmo, Columbia, West Columbia, Cayce, Chapin, Blythewood, and nearby areas comfortable year-round. Experience our devotion to your comfort firsthand.

Our Cooling Services

AC Repair

Sudden breakdown? Noisy unit? Warm air blowing from your vents? Our fast-response AC repair team quickly diagnoses the root of the problem and fixes it right the first time, protecting your system from further damage

AC Repair Service

AC Installation

When it is time to retire your old, tired AC, we make upgrading seamless. We accurately size and install modern, high-efficiency cooling systems customized for your home layout, helping you save on utility costs.

AC INSTALLATioN

AC Maintenance

Preventive maintenance is the best policy for your cooling system. Our comprehensive seasonal tune-ups clean out the grime, maximize airflow, and catch minor problems before they turn into costly mid-summer breakdowns.

AC INSTALLATioN

Ductless Mini-Split Repair

If your mini-split is leaking water, short-cycling, or failing to keep a specific room cool, our specialized technicians can help. We know the ins and outs of zoning technology to get your targeted comfort back on track fast.

Mini-split Repair

Ductless Mini-Split Installation

Because mini-splits run almost constantly to keep room temperatures steady, their filters and coils need regular love. Our maintenance keeps your zoned system operating at peak efficiency and protects your warranty.

Mini-Split Installation

Ductless Mini-Split Maintenance

Routine maintenance keeps ductless mini-split systems running efficiently, maximizes cooling performance, extended equipment lifespan, improves air quality, and helps prevent unexpected repairs.

MINI-Split Maintenance

24/7 Emergency AC Repair: Cool Relief When You Need It Most

South Carolina summers don’t take breaks, and neither do we. When your AC cuts out in the middle of a July heatwave, you shouldn’t have to wait until business hours to get relief. As a reliable AC company, Kay Plumbing, Heating & Cooling provides true 24/7 emergency AC repair across Lexington and Richland Counties.

No Automated Runarounds: Call us at 2 AM or on a holiday, and you’ll speak to a real person ready to help.
Rapid Response Teams: Our trucks are fully stocked as “warehouses on wheels,” meaning we can usually fix your system on the very first visit.
Safety First: We prioritize vulnerable households, including seniors, infants, and pets, to ensure no one is left stranded in dangerous indoor temperatures.

Complete AC breakdown? Contact our 24/7 HVAC experts today to get your cool air restored fast.

Call: (803) 445-3707

Why Homeowners Choose Us as a Trusted AC Company?

As a locally trusted AC company serving the Midlands since 2008, we’re committed to providing honest recommendations, quality workmanship, and dependable customer service.

Family-Owned & Trusted AC Company

As a family-owned company serving the Midlands for over 15 years, we focus on honest service and lasting customer relationships.

Highly Rated by Local Homeowners

With more than 1,500 five-star reviews and an A+ BBB rating, Kay Plumbing & Heating is a trusted AC company for homeowners throughout Midlands communities.

Certified & Experienced HVAC Professionals

Our EPA-certified technicians are trained to repair, install, and maintain all kinds of home cooling systems.

Honest Pricing & Clear Communication

We give upfront prices, honest advice, and clear information so homeowners can make confident decisions.

Energy-Efficient & Eco-Friendly Solutions

We focus on energy-saving cooling systems and eco-friendly HVAC technology to help your comfort and lower costs.

Local Knowledge You Can Trust

From hot summers to high humidity, we know the cooling challenges homeowners face in Lexington and Richland Counties.

Cut Your Utility Bills with High-Efficiency Cooling

If your current AC is more than 10 years old, it’s likely working twice as hard to cool your home while quietly draining your wallet. Upgrading to a modern, high-efficiency central air system or a ductless mini-split is an investment that pays you back.

Immediate Energy Savings: Modern SEER2-rated systems use significantly less electricity, visibly dropping your monthly Dominion Energy or REMC bills.
The Future of Home Comfort (A2L Refrigerants): We install the latest eco-friendly systems utilizing next-generation A2L refrigerants. These systems are not only better for the environment, but they also offer superior heat transfer, cooling your home faster and more efficiently.
Increase Your Savings: Ask our team about current federal tax credits, local utility rebates and adaptable financing that makes upgrading more affordable than ever.

Adaptable Financing Options

Make your home comfort investment stress-free! Take advantage of our adjustable financing options and enjoy a new or upgraded cooling system without delay.

Explore our financing options.

Financing

Routine Maintenance Plans

Protect your comfort, curb unexpected costs, and extend your equipment’s life with regular AC tune-ups. Ask about our Kay Comfort Club Protection membership and enjoy peak system performance year after year.

Maintenace Plan

Schedule Service with a Trusted AC Company in Lexington & Richland Counties

Whether your AC just quit in the middle of the night, or you’re finally ready to slash your summer power bills with a high-efficiency upgrade, the team at Kay Plumbing, Heating & Cooling has you covered.

Don’t sweat out another afternoon. Experience the honest pricing and 5-star service your neighbors trust.

(803) 445-3707

Service Areas

Our AC Company proudly provides heat pump maintenance services throughout:

Lexington County, SC

Richland County, SC

Our technicians regularly travel major Midlands corridors, including I-20, I-26, Highway 378, US-1, Sunset Boulevard, Forest Drive, and Lake Murray Boulevard.

Frequently Asked Questions

Ideally, once a year and right before the deep summer heat hits. Think of it like changing the oil in your car. A spring tune-up ensures your system is clean, safe, and efficient before you force it to run 15 hours a day in the South Carolina humidity.

Your system will usually give you a warning before it quits completely. Keep an eye (and ear) out for warm air blowing from the vents, weak airflow, frequent cycling on and off, or strange banging and squealing noises. A sudden, unexplained spike in your monthly power bill is also a massive red flag that your AC is struggling.

Most central air systems last between 10 and 15 years. However, because our Midlands summers are so brutal, a system’s lifespan heavily depends on how well it’s been maintained. Skip annual service, and that lifespan can easily drop closer to the 10-year mark.

Incredibly! Traditional central AC systems lose a lot of energy pushing cold air through long runs of ductwork (especially if those ducts are in a scorching attic). Ductless mini-splits deliver cooled air directly into the room, and because you can turn off units in unoccupied rooms, you aren’t wasting money cooling empty space.

They are the new industry standard for eco-friendly cooling. Older refrigerants (like R-410A) are being phased out globally to protect the environment. A2L refrigerants have a much lower environmental impact and superior heat transfer capabilities. Upgrading to a system that uses A2L means your home is future-proofed against the rising costs and eventual shortages of older chemic

We generally recommend the “Rule of 5,000.” Multiply the age of your system by the repair cost. If the total exceeds $5,000, or if your system is over 12 years old and constantly breaking down, investing that money in a new, high-efficiency system is almost always the smarter, cheaper long-term choice.

We know that a broken AC in the Midlands isn’t just an inconvenience. It’s an emergency. As a responsible AC company, we prioritize fast scheduling across Lexington and Richland Counties. Furthermore, our trucks are fully stocked with standard replacement parts, allowing our technicians to diagnose and fix the vast majority of cooling issues on the first visit.

A local AC company understands the climate challenges homeowners face throughout Lexington and Richland Counties and can provide faster response times, personalized recommendations, and dependable ongoing support.