AC Installation in Lexington & Richland Counties
Available 24/7
Emergency AC Installation
Top-Tier Certification
HVAC Professionals
1,500+ 5-Star Ratings
Trusted Across Lexington & Columbia
Professional AC Installation for Reliable Cooling & Indoor Comfort
Getting your AC professionally installed makes your home more comfortable, uses less energy, and helps you stay cool during South Carolina’s humid summers.
Kay Plumbing, Heating & Cooling installs AC systems in Lexington and Richland Counties. Our technicians set up energy-efficient units that run reliably, control humidity better, and keep you comfortable for years.
Whether you need to replace an old AC, upgrade to a variable-speed system, or install a new one, we make sure your system is the right size, has good airflow, and works dependably.
Since 2008, homeowners throughout Columbia, Lexington, West Columbia, Irmo, Chapin, and surrounding Midlands communities have trusted Kay Plumbing for professional HVAC installation and home comfort solutions.
Call Kay Plumbing today to set up your AC installation and enjoy reliable comfort in Lexington and Richland Counties.
Why Homeowners Choose Kay Plumbing for AC Installation
Family-Owned Since 2008
For over 15 years, Kay Plumbing has helped homeowners in Lexington and Richland Counties. As a family business, we value reliable service, honest communication, and long-term customer care.
Experienced Central AC Installation Technicians
Our HVAC technicians use the best installation practices recommended by manufacturers. This helps your system run efficiently and keeps your home cool.
Upfront Recommendations & System Guidance
We look at your home’s cooling needs, airflow, insulation, and what makes you comfortable before suggesting options that fit your goals and budget.
High-Efficiency Cooling Solutions
New central AC systems are more energy efficient and run more quietly. They also control humidity better and keep indoor temperatures more steady than older models.
Kay Comfort Club Maintenance Benefits
Joining the Kay Comfort Club helps protect your HVAC system with regular maintenance, priority service, and ongoing checkups.
Lifetime Repair Warranty
We stand behind our work with dependable repair support and customer service to protect your comfort system.
Benefits of Installing a New Air Conditioner
New air conditioning systems can use much less energy than older ones.
Many newer systems feature:
These features can help lower your utility bills and make your home more comfortable during South Carolina’s hot months.
Better Indoor Comfort
A professional AC installation helps you enjoy:
Enhanced Humidity Control for Midlands Homes
Homes in Lexington and Richland Counties often deal with high humidity in the spring and summer. Modern AC systems help get rid of extra moisture indoors, which can:
Improved System Reliability
Older AC systems often have trouble keeping up during the hottest parts of summer. Installing a new air conditioning system may help reduce:
Replacing an old, short-cycling air conditioner before a big July heat wave can help you avoid emergency breakdowns during the hottest times of the year.
Navigating the 2026 South Carolina Energy Efficiency Landscape
The South Carolina Energy Office (SCEO) is actively finalizing software infrastructure and contractor portals for the state’s upcoming HOMES and HEAR energy-efficiency initiatives.
As these federal electrification and retrofit programs develop through 2026, modern high-efficiency SEER2 cooling systems are becoming a key part of whole-home energy upgrades.
Many homeowners throughout Lexington and Richland Counties are now exploring:
Choosing an experienced, licensed contractor helps make sure your system is sized correctly, airflow is calculated properly, and all paperwork meets new state energy standards for rebates and benchmarking.
Signs It May Be Time for AC Replacement
Many people keep repairing old AC systems even when they become less efficient and reliable.
Common warning signs include:
Homes throughout:
Long cooling seasons and high humidity in the Midlands put a lot of strain on older air conditioning systems over time.
Replacing your old system before it breaks down can help you avoid emergencies during the hottest parts of summer.
The 2026 Refrigerant Transition & Older AC Systems
Many older ACs still use legacy R-410A refrigerant.
As federal environmental regulations continue transitioning the HVAC industry toward newer low-GWP A2L refrigerants, such as:
Fixing leaks in R-410A systems may become more expensive as standards change and supplies decrease.
Installing a new cooling system helps you switch to next-generation refrigerants that meet the latest environmental and efficiency standards
Choosing the Right Central AC System for Your Home
Every home is different, so getting the right size and proper installation is key for comfort and efficiency over time.
Our HVAC team evaluates:
Modern variable-speed AC systems give you more precise cooling and adjust to changing outdoor temperatures in Lexington and Richland Counties.
Some homeowners may also benefit from:
A well-designed system makes your home more comfortable, improves airflow, and saves energy in the long run.
AC Installation for Midlands Weather Conditions
Homes throughout Lexington and Richland Counties regularly experience:
These changing weather conditions make cooling systems work harder in the Midlands.
Modern high-efficiency air conditioners are designed to provide:
In communities near lakes, from Chapin to Yacht Cove, high shoreline humidity and seasonal pine pollen can quickly cover outdoor condenser fins with debris.
We check where to place your outdoor unit, how air flows, and how to protect the condenser so your system can handle the Midlands’ conditions.
Professional AC Installation Helps Protect System Performance
Even the best HVAC equipment won’t work well if it’s not installed properly.
Professional AC installation helps support:
Every central AC installation is documented to meet Dominion Energy South Carolina Residential Savings requirements.
Because many utility incentive programs require:
We handle the paperwork and records to make your rebate submission easy and help you avoid delays.
Kay Comfort Club Maintenance Benefits
Regular maintenance helps protect your new air conditioning system and keeps it running well for years.
With the Kay Comfort Club membership program, homeowners may receive:
Preventive maintenance makes your system more efficient, reduces wear and tear, and helps it cool your home reliably all year.
Call a Trusted AC Installer in Lexington & Richland Counties
If your current air conditioner isn’t keeping your home comfortable, it might be time to look into replacing it with a modern system.
Kay Plumbing, Heating & Cooling provides professional AC installation, central AC replacement, and new air conditioner installation services throughout Lexington and Richland Counties.
Our experienced HVAC team helps you pick energy-efficient cooling systems that keep you comfortable, control humidity, and work reliably during South Carolina’s tough summer weather.
Call us today to schedule your estimate and talk with a trusted AC installer.
Service Areas
Kay Plumbing proudly provides AC repair services throughout:
Lexington County, SC
Richland County, SC
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.