Knightsville, SC, is a charming community just outside Summerville, known for its peaceful neighborhoods, excellent schools, and Southern hospitality. With hot summers and cool winters, having a dependable HVAC system is essential for year-round comfort. 

At Coastal Air Plus, we provide air conditioning repair, heating system installation, heat pump maintenance, and indoor air quality solutions to keep your home at the perfect temperature in any season. 

Call 843-305-5728 today to schedule an appointment or request a free estimate.

Summers in Knightsville bring intense heat and humidity, making an efficient air conditioning system a necessity. If your AC is struggling to cool your home, Coastal Air Plus provides expert air, SC to restore your comfort.   

Our Cooling Services Include:   

• AC Installation & Replacement – We install high-performance cooling systems that provide energy-efficient comfort.   
• AC Repair & Troubleshooting – If your AC is not cooling properly, making strange noises, or leaking, we’ll quickly diagnose and fix the issue.   
• Preventative AC Maintenance – Regular tune-ups improve efficiency, extend system life, and help prevent costly repairs.   

For professional air conditioning service in Knightsville, call 843-305-5728 or schedule an appointment online today.

Many homeowners in Knightsville choose heat pumps for their ability to provide both heating and cooling in one energy-efficient system. However, like any HVAC unit, heat pumps require regular maintenance to function at their best.

Our Heat Pump Services Include: 

• Heat Pump Installation – Upgrade to a high-efficiency heat pump for year-round comfort and energy savings.
• Heat Pump Repair – If your system isn’t heating or cooling properly, we’ll diagnose and repair the issue quickly.
• Routine Heat Pump Maintenance – Regular check-ups prevent breakdowns and keep your system running at peak efficiency.

For heat pump service in Knightsville, call 843-305-5728 or request service online today.

Indoor air quality plays a major role in your family’s health and comfort. Dust, pollen, mold, and humidity can all affect the air you breathe. Coastal Air Plus offers indoor air quality solutions in Knightsville, SC to improve your home’s air. 

Our Indoor Air Quality Services Include: 

• Air Purifiers & Filtration Systems – Remove allergens, dust, and bacteria for cleaner, healthier air. 
• Humidifiers & Dehumidifiers – Control moisture levels to prevent mold growth and maintain comfort. 
• Duct Cleaning & Sealing – Improve airflow efficiency and remove contaminants from your HVAC system. 

Enhance your indoor air quality in Knightsville today by calling 843-305-5728.

While winters in South Carolina are relatively mild, chilly nights make a reliable heating system essential. Whether you need a new furnace, a quick repair, or regular maintenance, Coastal Air Plus is here to help.   

Our Heating Services Include:

• Furnace Installation & Replacement – We help homeowners select the best energy-efficient heating system for their home.
• Furnace Repairs – If your furnace is blowing cold air, making unusual noises, or failing to turn on, we provide prompt and professional repairs.
• Annual Furnace Maintenance – Routine servicing keeps your heating system running smoothly and prevents unexpected breakdowns.

For expert furnace repair in Knightsville, call 843-305-5728 today.

Your HVAC system depends on clean and well-sealed air ducts to distribute conditioned air efficiently. If your ducts are damaged, dirty, or leaking, they can reduce system efficiency and increase energy bills. 

Signs You May Need Air Duct Repair:   

• Uneven heating or cooling throughout your home 
• Increased dust accumulation   Higher-than-normal energy bills 

For air duct repair and cleaning in Knightsville, call 843-305-5728 today.

Why is my AC running but not cooling my home?

• This could be caused by low refrigerant, a dirty filter, or an issue with the compressor. It’s best to have an HVAC professional inspect the system to identify the problem.

How often should I have my furnace serviced?

• It’s recommended to schedule furnace maintenance at least once a year, preferably before the winter season, to ensure it operates efficiently and safely.

Can a whole-house dehumidifier help with moisture issues?

• Yes! A whole-home dehumidifier can help regulate humidity levels, reducing the risk of mold growth and improving indoor comfort.

What’s the benefit of an HVAC maintenance plan?

• An HVAC maintenance plan ensures regular check-ups, improves system efficiency, prevents unexpected breakdowns, and extends the lifespan of your heating and cooling system.