Local HVAC Service. Honest Answers. Lasting Comfort.

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A dusty attic with a sloped ceiling, a skylight window, large insulated ductwork, a box, a pair of gloves, and a roll of tape.

Smither Enterprises provides expert HVAC diagnostics, repairs, and system replacements throughout Johnson County and surrounding areas. Get personal service from a local, family-owned company with 20 years of experience.

Why Johnson County Chooses Smither

Two technicians working on HVAC equipment in a mechanical room, troubleshooting with tools and a tablet.

Local & Family Owned

Nick lives and works in the area, communicates directly with customers, and takes personal responsibility for every job.

A man working with a blue machine in a workshop, with rolls of fabric or material nearby, and a woman reading a paper in the background.

20 Years of Hands-On Experience

Two decades of practical experience across HVAC diagnostics, repairs, replacements, and property improvements.

Two technicians working on large industrial equipment in a mechanical room, one woman kneeling with a multimeter, the other man observing and holding a clipboard.

Honest Diagnostics & Fair Pricing

We find the cause, explain the options clearly, and recommend what makes sense—without high-pressure sales tactics.

Smither Enterprises provides expert HVAC diagnostics, repairs, replacements, and seasonal maintenance for homes, rental properties, and light-commercial spaces. Every project is handled with personal attention, careful craftsmanship, and straightforward communication.

Two repair technicians, a woman kneeling and a man standing, working on rooftop air conditioning units with city skyline in background.

HVAC Services Built Around Your Needs

New Unit Replacement

Replace an aging furnace, air conditioner, heat pump, or complete comfort system with careful installation and manufacturer-backed equipment options.

A technician kneeling on the floor using a diagnostic multimeter on HVAC equipment in a utility room.

Seasonal Maintenance Plans

Prepare your cooling system before spring and your heating system before winter with two planned visits and seasonal specials.

Two workers in an industrial workshop are operating large sheet metal cutting machinery, with one worker guiding the metal and the other organizing stacked sheets nearby.

System Diagnostics

Professional Fieldpiece equipment and 20 years of experience help identify airflow, electrical, refrigerant, control, and performance problems accurately.

A woman working on a construction project, using a clamp to hold copper piping. A man in the background is reviewing blueprints, both in an unfinished building with large windows and exposed wooden beams.

Dependable HVAC Repairs

Reliable repairs for heating and cooling systems that will not start, cannot keep up, cycle frequently, make unusual noises, or drive up energy costs.

A technician kneeling on a cloth on the floor, using a diagnostic tool on an air conditioning unit in a room under renovation with an unfinished wall.

Request a Same-Day Callback

Tell us what your heating or cooling system is doing. Smither Enterprises will respond with a same-day callback during normal business operations.

Local Experience. Personal Service. Pride in the Work.

Smither Enterprises is family owned, EPA certified, and fully insured. Nick brings 20 years of hands-on experience, works directly with customers, and services all makes and models with careful attention to every detail.

A woman sitting on the edge of an open work van, holding a work glove, in a workshop with tools and supplies inside.

Recent HVAC Work

Two industrial workers, a woman and a young man, are inspecting equipment with gauges in a factory or industrial plant. The woman is pointing at the gauges and holding a tablet, while the young man listens attentively. The setting has large windows, metal pipes, and control panels.
Three professionals inspecting industrial equipment in a modern, well-lit laboratory or workshop.
Three construction professionals, two women and one man, standing inside a building under construction, discussing plans. The man, wearing a white hard hat and a yellow safety vest, is raising his index finger. The women hold blueprints and a measuring device. Construction tools and cables are on the floor, with large windows and exposed ductwork overhead.