Areas We Serve

Your Local HVAC Experts in the Lowcountry

Reasonable Air LLC proudly serves residential customers throughout the Lowcountry, bringing professional HVAC services, reliable repair, installations, and system upgrades to a wide service area. Our commitment to customer satisfaction, high-quality workmanship, and responsive support makes us the preferred HVAC company for clients in a variety of communities. No matter where you’re located within our service region, you can count on Reasonable Air LLC for expert heating and cooling solutions tailored to your needs.

Service Areas

We are pleased to serve the following areas with comprehensive HVAC, air conditioning, and indoor air quality solutions:

Summerville, SC

Our home base in Summerville, SC, allows us to provide fast, reliable service to residents in the heart of the Lowcountry. From emergency repairs to system installations, we are here to meet all your HVAC needs locally.

St. George, SC

Reasonable Air LLC extends its professional services to St. George, SC, offering skilled maintenance, replacement, and installation for homeowners.

Knightsville, SC

Residents and property managers in Knightsville, SC can rely on our expertise for efficient heating and cooling services, preventive maintenance, and energy-efficient solutions.

Ladson, SC

Serving Ladson, SC, our team is equipped to handle HVAC projects of every size, whether you’re upgrading your system, seeking repairs, or looking for indoor air quality improvements.

Lincolnville, SC

In Lincolnville, SC, we bring top-tier customer care and technical expertise to meet the unique needs of every client, from emergency troubleshooting to seasonal maintenance.

Charleston, SC

At Charleston, SC, you can always trust Reasonable Air LLC for your HVAC needs. Customers in the area trust us for their system installations, repairs, replacement and beyond.

North Charleston, SC

North Charleston, SC clients trust Reasonable Air LLC for everything from advanced air conditioning installations to quick, reliable HVAC repairs that keep properties running smoothly.

Goose Creek, SC

Goose Creek, SC, homeowners benefit from our responsive service, modern HVAC solutions, and commitment to quality for lasting comfort and satisfaction.

Moncks Corner, SC

For all your heating and cooling needs in Moncks Corner, SC, our technicians offer experienced advice, timely appointments, and high-quality system installations, repairs, and maintenance.

Contact Reasonable Air LLC

If you reside in any of the areas above, Reasonable Air LLC is here to serve you. Contact us today to schedule a service appointment, request a quote, or learn more about our full range of HVAC, air conditioning, and indoor air quality services in your community.

Grant Shirley November 6th, 2025
Our customer reached out for a comprehensive solution to combat their system not keeping up with the cooler fall temps winters or the humid summers. By choosing us, they secured a full system installation of a 2-ton split heat pump. With our favored top-notch Grandaire (ICP) split heat pump equipment, which uses R-32, and a 5KW electric heat kit as the champion products, we made sure they were set for absolute comfort throughout the year. Looking ahead, the customer can now enjoy a perfectly conditioned climate that caters to their needs. Say goodbye to weather worries! #HeatPumpInstallation #GrandaireICP #ClimateControl
Grant Shirley November 5th, 2025
During a routine maintenance service, our customer had a complaint of experiencing issues with inaccurate temperature readings. After a thorough investigation, we determined that a faulty temperature sensor was the culprit. Our solution was to replace it with a new Honeywell Wireless Indoor Sensor. This high-quality device will ensure accurate temperature monitoring for the customer's home. We're glad to have helped optimize our customer's HVAC system and look forward to serving their future needs. #TemperatureSensorReplacement #HoneywellProduct #CustomerSatisfaction
Grant Shirley November 5th, 2025

We're currently assisting a valued customer, who called us due to a problem with an old gas packaged unit. The unit's fan and heating sequence had unfortunately failed and urgently needed attention. As experts in our field, we sprang into action with an emergency system installation, employing Grandaire (ICP) equipment - known for reliability and longevity. We're happily ensuring that the old gas packaged unit is replaced promptly and effectively, keeping our customer's comfort our top priority. Take a look at before and after.
#HVAC #EmergencyInstallation #CustomerSatisfaction

Previous

Next
Grant Shirley October 29th, 2025
A customer recently reached out to us needing a maintenance check for their split gas system. We gladly sprang into action, using our highly effective "Green" cleaner to thoroughly clean the blower wheel. We also thoroughly checked the draft inducer motor, gas valve, hot surface igniter, blower motor, flame sensor, and pressure switch to ensure the proper heating sequence for the system. As a courtesy, we replaced two air filters that were on hand to ensure the customer's split gas system performs at its best. Added algicide as well to deter any aggressive growth in the system. Here's to ensuring great comfort and optimal functioning for our customers! #HVACMaintenance #EnvironmentFriendlyProducts
Grant Shirley October 29th, 2025

The customer reached out to us due to a malfunctioning draft induction fan. In response, our team promptly arrived on-site and utilized a universal fan with a gasket to correct the issue. This allowed us to efficiently handle the matter in a timely manner, restoring the system's normal operation and ensuring customer satisfaction. We're proud to deliver our promise of "Castle Comfort...at Reasonable Rates" to meet your household needs. #FanRepair #CustomerSatisfaction #EfficientService
Ragin Shirley October 9th, 2025
Fall check up on a split heat pump system under contract. Upon our thorough inspection, we executed maintenance procedures that included checking the wiring and the plenum for any leakage. Unfortunately, we discovered that the electric heaters had failed. But don't worry, we will provide a personalized repair estimate, with a 10% discount for our contracted customers. Our ultimate goal is to ensure the longevity and full functionality of your heating system. #HeatPumpMaintenance #SystemCheck #ContractMaintenance
Ragin Shirley October 9th, 2025
Fulfilling a Fall maintenance for a valued, contracted customer on this cool, rainy day. During our thorough inspection, we tested the blower motor and capacitor, ensuring both were operating at peak performance. We also took the time to clean the blower wheel to optimize airflow. One of our key interventions was adding algicide to both the primary drain and the condensing furnace drain, a preventive measure to keep everything flowing smoothly. We tested essential components including the draft inducer fan, pressure switch, hot surface igniter, and key safety features for the customer's peace of mind and to make sure the system is ready for cooler temperatures to come. We are proud to have delivered comprehensive services to ensure optimal system performance. #HVACMaintenance #QualityService
Ragin Shirley October 7th, 2025
We had a visit with a customer regarding their JB warranty covered system. They contacted us for a non-contracted preventive maintenance service to ensure their labor warranty stays intact. A 3-year JB labor warranty is standard with any full system installation, provided to our customers as a courtesy, no cost service. Our team made a thorough inspection and utilized the best industry practices to confirm the system's operability. By doing this, we reassure our customer that their investment remains safeguarded. We take pride in offering such meticulous services, to extend the lifespan of our installations and provide peace of mind to our clients. #preventivemaintenance #systemcheck #warrantyvalidation
Ragin Shirley October 7th, 2025
Our valued contract customer called us for their routine system preventive maintenance. The service included checking the wire and plenum connections, and inspecting for any air leaks or failed components. To provide our top-notch service, we used algicide tablets and a system safe foaming cleanser to enhance cleanliness and performance. Ton of attention went to temperature readings and airflow checks and we are happy to report the system is operating superbly, no sign of air leakage, failed components or any potential issues. Ensuring customer satisfaction is our priority. #PreventiveMaintenance #CustomerSatisfaction #SystemCheck
Ragin Shirley October 7th, 2025
We recently installed a new Nest thermostat for a resident who noticed our company vehicle in their neighborhood. Our customer reached out to have this modern solution in their home, providing both energy efficiency and convenient control over their heating and cooling systems. #Nestthermostat #EnergyEfficiency #HomeImprovement
Ragin Shirley October 1st, 2025

A hand-written Thank You card going out to a first-time customer. At Reasonable Air LLC, we place great value in personable interactions at each encounter and this is just one way we welcome new customers to the Reasonable Air family!
Ragin Shirley September 24th, 2025
The customer reached out to us concerned about a degrade in their cooling temperatures. We promptly responded and carried out an electronic leak search. Our tools accurately detected a coil leak, confirming the customer's suspicions. Quickly diagnosing such issues saves the system from further damage. Post detection, we laid out potential solutions for our customer, ensuring they understood their options. Quality service and clear communication are our priorities. We look forward to helping more customers keep their premises safe and comfortable.
Ragin Shirley September 22nd, 2025
The customer sought our help regarding their condensation pump that was plagued by a buildup of algae. We promptly attended to the issue, employing our standard service of pulling the condensation pump. Following this, we successfully removed the persistent algae carefully, leaving no traces behind. We used a potent Algicide which efficiently killed the remaining algae, preventing further growth. Safe to say, our customer was left satisfied with our swift action and comprehensive solution.