contract maintenance hvac South Dakota

Maintaining consistent indoor comfort in South Dakota requires a reliable forced air system. Whether you need a high-efficiency furnace, a central air conditioner, or complete system replacement, our NATE-certified technicians deliver precise installation and repair. We serve both residential and commercial properties, ensuring your forced air equipment operates at peak performance.

Our process begins with a detailed load calculation and free estimate. We explain equipment options, SEER ratings, and AFUE efficiency so you can make an informed decision. From filter changes to emergency breakdowns, we respond promptly. As a family-owned business, we prioritize clean workspaces, transparent pricing, and long-term durability.

Why trust us with your forced air system? Because we have over 100 years of local experience, we understand how South Dakota winters demand reliability. We also offer financing and maintenance plans to prevent costly failures. Let us keep your home or office comfortable in every season.

Ductless heating and cooling solutions are ideal for additions, garages, or buildings without existing ductwork. As an authorized Mitsubishi Electric contractor, H. A. Thompson & Sons installs hyper-heat mini-split systems that perform efficiently even in sub-zero South Dakota winters. These systems provide zoned comfort, reduce energy bills, and improve indoor air quality.

Our team assesses your space, recommends the correct BTU capacity, and handles the full installation—from mounting indoor units to connecting the outdoor condenser. We also service existing mini-splits, cleaning filters, checking refrigerant levels, and troubleshooting error codes. With quiet operation and individual room controls, you save money while staying comfortable.

We stand behind every mini-split project with a workmanship guarantee. Our technicians receive factory training, ensuring your system meets Mitsubishi’s high standards. For eco-friendly heating and cooling in South Dakota, trust our family to deliver professional results.

From leaking faucets to repiping entire homes, H. A. Thompson & Sons provides full-service residential plumbing in South Dakota. We handle water heater replacements, drain cleaning, toilet installations, and slab leak detection. Our plumbers are licensed, background-checked, and respectful of your property—wearing shoe covers and using drop cloths on every job.

Emergency plumbing issues never happen at a convenient time. That is why we offer same-day service for burst pipes, sewer backups, and water heater failures. We use modern diagnostic tools like camera inspections to find problems without destructive guesswork. For older homes, we specialize in relining drain pipes, avoiding costly excavation.

We also offer maintenance agreements to keep your plumbing system trouble-free. Low water pressure, running toilets, or corroded pipes—our team solves it all with honest, upfront pricing. Experience the peace of mind that comes from hiring South Dakota's most trusted plumbing experts.

From design-build to prefab services, H. A. Thompson & Sons delivers turnkey mechanical solutions for commercial projects across South Dakota. We work with general contractors and property owners on new construction, retrofits, and energy conservation upgrades. Our scope includes HVAC piping, ventilation systems, boiler plants, and building automation controls.

We use LINC Service protocols to ensure your building’s mechanical systems operate at maximum efficiency. Our prefabrication shop reduces on-site labor time and improves quality control. Whether you need a restaurant exhaust system or an office building chiller replacement, our project managers coordinate every phase to meet deadlines and budget.

We are proud to have maintained over 1,000 buildings throughout the northern plains. Our commercial team provides 24/7 emergency repair, routine contract maintenance, and capital planning assistance. Choose us as your mechanical partner and gain a team that cares about your bottom line as much as you do.