Heat Pump Repair in Lexington & Richland Counties
Available 24/7
Emergency Plumbing Service
Top-Tier Certification
Master Plumber & HVAC Pro
1,500+ 5-Star Ratings
Trusted Across Lexington & Columbia
Professional Heat Pump Repair & Diagnostic Services
Heat pumps are at the heart of comfort for Midlands families, creating the cozy, safe environment we all cherish year-round. When your system falters, it can feel overwhelming, especially during South Carolina’s intense heat or bitter cold spells, when family well-being is on the line.
At Kay Plumbing, Heating & Cooling, we know your family’s comfort matters. We provide heat pump repair in Lexington and Richland Counties to restore peace of mind, boost energy efficiency, and help prevent future breakdowns.
If you’re shivering from cold air or sweating through an unexpected breakdown, our licensed HVAC professionals will treat your home with the compassion and urgency you deserve. We’ll give you honest answers and dependable repairs so you can feel secure and at ease again.
Since 2008, families in Lexington, Columbia, and the Midlands have turned to us in their moments of need, trusting Kay Plumbing to bring warmth, comfort, and lasting solutions. We promise to treat your home with the same kindness and attention we would give our own.
Why Homeowners Choose Kay Plumbing for Heat Pump Repair
Family-Owned Since 2008
We’re honored to have served families in Lexington and Richland County for over 15 years, providing HVAC care you can trust.
Certified Heat Pump Technicians
Our technicians diagnose and repair modern heat pump systems in accordance with professional HVAC standards.
Advanced HVAC Diagnostics
We identify the true source of heating and cooling problems before recommending repairs.
Honest Recommendations
We want the very best for your home and family, focusing on repairs that make you more comfortable and help manage your energy use.
Upfront Pricing
We believe in open communication and honest pricing, ensuring you always feel informed and confident before repairs begin.
Emergency HVAC Service Available
We respond with urgency and genuine care when your family faces heating or cooling challenges.
Common Heat Pump Problems We Repair
Heat pumps rely on refrigeration, airflow, electrical communication, and properly functioning temperature sensors.
Over time, problems may develop involving:
These issues may lead to:
Professional diagnostics help determine whether the issue involves airflow, refrigerant performance, electrical controls, or system calibration.
Why Heat Pumps Struggle During Midlands Weather Swings
Heat pumps operate year-round, which means Midlands temperature swings place constant stress on the system.
Homes throughout:
often experience rapid outdoor temperature changes, combined with humidity and damp frost conditions from the Lake Murray corridor.
These conditions may contribute to:
Professional heat pump service helps keep your system running smoothly in both heating and cooling seasons.
Heat Pump Not Heating Properly?
Many homeowners worry when their heat pump blows cooler air in winter, fearing for their family’s warmth and safety.
Unlike traditional furnaces, heat pumps typically deliver lower discharge temperatures during normal heating cycles. However, issues involving:
may prevent the system from heating effectively.
Our thoughtful repair process checks your whole HVAC system, so we can quickly restore the safe, welcoming environment your family deserves.
Dual-Fuel & Hybrid HVAC System Repair
Many homes throughout Lexington and Richland Counties utilize hybrid HVAC systems that combine:
These systems automatically shift between electric and gas heating depending on outdoor temperatures.
If the system fails to “hand off” correctly during colder weather, homeowners may experience:
Expert calibration ensures your heat pump, thermostat, and furnace work together in harmony, so your family can always enjoy reliable warmth and comfort.
Airflow Problems & SEER2 System Sensitivity
Many heat pump problems actually begin with airflow restrictions rather than refrigeration failure.
Common airflow issues include:
Restricted airflow may contribute to:
Modern SEER2 systems are especially sensitive to duct pressure conditions and airflow restrictions.
We check your system’s airflow so your family enjoys steady comfort, better efficiency, and fewer worries for years.
Older Heat Pumps & Legacy HVAC Components
Many homes throughout:
still operate aging heat pump systems approaching the later stages of their service life.
In 2026, HVAC manufacturers continue to prioritize newer variable-speed equipment and next-generation refrigerant systems, making legacy components more difficult and expensive to source.
The R-410A Obsolescence Phase
Many older heat pumps throughout the Midlands still use R-410A refrigerant.
Because federal regulations have shifted new HVAC production toward next-generation A2L refrigerants like R-454B and R-32, the regional supply of R-410A continues to shrink.
If your older heat pump has a major leak, you may be concerned about repair costs and comfort. We’ll guide you with honesty and compassion.
Our team provides honest repair-versus-upgrade guidance based on:
Reversing Valve Failures & Major Repairs
The reversing valve acts as the mechanical switching device that allows a heat pump to alternate between heating and cooling modes.
When reversing valves fail, homeowners may experience:
Replacing a reversing valve often requires:
Because this repair takes technical expertise and time, we’ll help you thoughtfully decide whether to repair or replace your system, always caring for your family’s comfort and peace of mind.
Heat Pump Efficiency & South Carolina Energy Programs
In 2026, the South Carolina Energy Office will continue managing the rollout of the HOMES and HEAR rebate programs, designed to support residential energy-efficiency improvements and electrification upgrades.
Accurate professional diagnostics help:
Professionally maintained heat pumps may also qualify for future Dominion Energy South Carolina efficiency incentives tied to high-performance HVAC systems.
Emergency Heat Pump Repair
A sudden heat pump failure can leave your home filled with worry, discomfort, and uncertainty, especially when the weather turns harsh. Our team acts quickly to restore warmth and security, so you and your loved ones can feel safe and supported, no matter what Mother Nature brings.
Our emergency HVAC services help address:
A prompt, caring response can make a world of difference when your heat pump stops working. Our goal is to restore not just your comfort, but also your sense of calm and safety, so your family can move forward with confidence and peace of mind.
Kay Comfort Club Protection
Our Kay Comfort Club is more than a membership; it’s a way to keep fear and frustration from your door. Enjoy extra peace of mind, knowing your family gets priority care, attentive service, and a team that treats your comfort as our mission.
Membership benefits may include:
With consistent, caring maintenance from our experts, your loved ones can count on safety and trust in your home’s comfort. We aim to give you the confidence to make lasting family memories in every season.
Schedule Heat Pump Repair Today
Don’t let small issues become expensive repairs. Act now: call us today to schedule your heat pump repair and restore comfort to your home!
Kay Plumbing offers trusted heat pump repair in Lexington and Richland Counties. Rely on us for diagnostics, emergency repairs, and lasting comfort.
Call Kay Plumbing now and schedule your expert heat pump service. Take control of your comfort by contacting us today and enjoy reliable warmth in your home!
Service Areas
Kay Plumbing proudly provides emergency plumbing services throughout:
Lexington County, SC
Richland County, SC
Our technicians often travel the main roads in the Midlands, such as I-20, I-26, Highway 378, US-1, Forest Drive, Sunset Boulevard, and Lake Murray Boulevard.