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Claim This BusinessMD Heating & Air Conditioning has kept homes comfortable across Greenville and Spartanburg Counties since 2014, when owner Michael Donnelly founded the company to serve his local community. Based in Woodruff, South Carolina, this contractor earns consistently strong reviews, 45 customers have left feedback averaging 4.9 stars, reflecting reliable workmanship and fair pricing. The team serves a geographic footprint that includes Greer, Simpsonville, Fountain Inn, Duncan, Taylors, Gray Court, and surrounding towns in both Greenville and Spartanburg Counties. Whether handling routine maintenance or emergency repairs, Michael and his technicians maintain round-the-clock availability seven days a week, ensuring residents never wait long when heating or cooling systems fail.
What distinguishes MD Heating & Air Conditioning from competitors is owner Michael Donnelly's hands-on approach and his team's commitment to transparent pricing. Reviewers repeatedly mention receiving multiple estimates before choosing MD, only to find the company's prices remained the most budget-friendly in the area. The company offers financing options for major installations like packaged units and ductwork upgrades, making equipment replacements accessible for homeowners facing unexpected failures. Beyond traditional split systems, the team installs ductless mini-split setups ideal for older homes without existing ductwork, a niche that requires specialized knowledge many local contractors lack.
Customer stories reveal why MD Heating & Air Conditioning has earned such strong loyalty. When one homeowner's AC failed during a Saturday, Michael arrived the same day and had the system cooling by that afternoon, a feat other closed businesses couldn't match. Another reviewer described Michael returning repeatedly to repair a stubborn furnace, ultimately replacing the entire unit when repairs proved insufficient. His generosity extends to pricing, with at least one reviewer noting a military discount, and the team includes friendly support staff like Axel and Soffie whom customers specifically mention by name. The follow-up matters too: one reviewer noted Michael called the next day to confirm everything ran smoothly after the repair.
Across 45 reviews, customers consistently praise same-day response times, fair pricing compared to competitor estimates, and Michael Donnelly's willingness to explain every step of repairs. Multiple reviewers highlight the military discount and financing options that make major installations manageable. The single recurring theme is reliability, technicians show up when promised and follow up after the work is complete.
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Custom AC installations optimizing comfort and efficiency for homes and businesses, including energy-efficient replacements to lower utility costs.
Fast repairs restoring cool comfort and routine maintenance keeping air conditioning running smoothly year-round.
Perfect for homes without ductwork, offering customizable zone-based climate control with professional installation.
Expert installation of heating systems including furnaces and efficient modern replacements for outdated equipment.
Prompt repairs and routine service extending heating system lifespan and maintaining efficiency.
Year-round heating and cooling through efficient heat pump installation, repairs, and maintenance.
Solutions including chimney liners to improve air circulation and reduce contaminants in residential spaces.