Residential HVAC Services in Lexington, SC

Residential HVAC in Lexington, SC covers a wide spread of houses. One street has a brick ranch with 1970s ducts in the crawlspace; the next subdivision has two-story homes with a second system in the attic. Puzzled Comfort Solutions is owner-operated, based in Lexington, and handles everything from a capacitor swap to a full replacement. We explain what we find, lay out the trade-offs and leave the decision to you.

Which home HVAC services do Lexington households call about most?

A home service call covers everything from the hallway thermostat to the condenser in the side yard: the equipment, the ducts that carry the air, and the wiring and controls between them. Most Lexington houses run a split system, a heat pump or AC outside with a gas furnace or electric air handler in a closet, crawlspace or attic. Some rural and manufactured homes use one packaged unit. The residential scope:

• Diagnosis and repair of heat pumps, central ACs, furnaces, air handlers and mini-splits.
• Replacement, sized for the house rather than copied from the old data plate.
• Spring and fall maintenance visits.
• Ductwork, thermostats and zoning, attic and crawlspace included.
• Humidity control and air quality for houses that stay sticky.
• HVAC inspections for buyers and sellers, plus 24/7 emergency calls.

Each row points to the page with more detail.

How your type of house shapes the work

On paper most systems look alike. What changes from house to house is where the equipment sits and how air reaches the rooms.

Brick ranches on crawlspaces

Many 1950s through 1970s homes around Lexington, West Columbia and Cayce run their ducts through a crawlspace. In a humid summer those ducts can sweat, insulation sags, and joints separate. We check the crawlspace runs as part of diagnosing weak airflow, because a new outdoor unit will not fix a disconnected duct under the floor.

Two-story subdivision homes

Homes built since 2000 around Lexington, Red Bank and Chapin often have one system per floor, with the upstairs air handler in the attic. Attic units deal with extreme heat, and a clogged drain there can stain a ceiling. Bonus rooms over garages are the usual comfort complaint.

Older homes, lake homes and manufactured homes

Pre-1950 houses in Columbia neighborhoods may have plaster walls and little room for ducts, which makes ductless systems worth a look. Larger homes near Lake Murray can have three systems to maintain. Manufactured homes use belly ductwork and closet furnaces and are covered on our mobile home HVAC page.

Records every homeowner should keep on the system

A few phone photos save time on every future call.

• The data plate on the outdoor unit and the furnace or air handler: model, serial number and manufacture date.
• Refrigerant type. Older systems may use R-22, whose production ended in the US in 2020, so only reclaimed supply remains. Newer systems installed from 2025 on use lower-GWP refrigerants such as R-454B or R-32.
• Filter size and how often you change it.
• Permit and invoice from the last replacement. Local building departments typically require a permit for equipment changeouts.

Planning to sell someday? The state's seller disclosure form has questions on heating, cooling and system age, and these records make it easy to fill in.

Permits, refrigerant rules and checking a contractor's license

Homeowners have three rules worth knowing. First, the state agency SC LLR licenses heating and air contractors (the Residential Builders Commission covers residential HVAC specialty work, the Contractor's Licensing Board covers mechanical contractors), and its website lets you search any company by name. We are fully licensed and insured. Second, swapping out a condenser, heat pump or furnace usually means a permit and a follow-up inspection, issued by the town or the county depending on your address. Third, federal EPA Section 608 rules mean only certified techs may handle refrigerant, and an old R-22 or R-410A charge is pulled into a recovery tank, never vented to the air.

What a home service visit looks like

1. You call and describe what the system is doing. Same-day visits happen often when the schedule allows.
2. We call ahead before arriving.
3. Diagnosis first. A meter on capacitors and contactors, gauges on the refrigerant side, the temperature split across the coil, then an explanation of what failed and why.
4. Options, not pressure. Repair versus replace, good versus better, each with its pros and cons.
5. The work, followed by a test run in every mode.
6. Cleanup of the closet, attic walkway or yard.

What changes the cost of work on your home system

• Whether the fix is a part or a full system, and the age of the equipment.
• Equipment type and efficiency: a variable-speed heat pump costs more than a single-stage AC meeting the 14.3 SEER2 minimum for the Southeast.
• Access, especially attic air handlers and low crawlspaces.
• Duct condition, if ducts need repair alongside the equipment.
• How many systems the house has.
• Permits and any electrical updates at the equipment.

If you are weighing a big repair against replacement, ask for both numbers in writing. Compare the repair cost with the age of the equipment, how often it has needed service, and whether it runs on R-22. A system that is young and failed once is a different decision from one that has needed a part every summer for three years. We say which way we lean and why; you decide.

What you get from a small, owner-run home HVAC company

Puzzled Comfort Solutions LLC was registered in South Carolina in April 2021, and owner Chong Kim is the HVAC technician behind the work, so the person reading your gauges is the one explaining your choices. Replacement estimates are free and written. When new equipment makes sense, we install Bryant systems as a Bryant-authorized dealer, backed by NATE certification and over 10 years of HVAC experience. Our 5.0 Google rating across 29 reviews reflects habits we keep: a call ahead, no upsell, a clean closet afterward. Veterans, school employees, nurses and first responders should ask about the published discounts.