At Casa Mechanical Services, home comfort is personal. Serving Greater Austin, Round Rock, and San Antonio, our team brings over 100 years of combined experience to every HVAC and plumbing project, pairing seasoned expertise with a neighborly approach. From summer scorchers to chilly Hill Country mornings, we design dependable solutions that keep your home’s vital systems running smoothly, efficiently, and safely—all backed by a reputation for honesty and work done right the first time. For homeowners searching for heat pump installation Round Rock can trust, Casa Mechanical Services delivers a thoughtful, detail-driven process.

We start with a comprehensive home assessment—evaluating insulation levels, window exposure, duct integrity, and electrical readiness—before recommending equipment tailored to your lifestyle and budget. Whether upgrading from an older system or building new, our technicians size and install heat pumps for balanced comfort, quiet operation, and robust energy performance. We’ll also help integrate smart thermostats, establish zoning where it makes sense, and set up a maintenance schedule that protects your investment season after season.

Our HVAC services span the full spectrum: precision replacements for aging systems, fast diagnostics and repairs when comfort can’t wait, seasonal tune-ups that reduce breakdowns, ductwork design and sealing to stop energy loss, and indoor air quality enhancements to address Central Texas allergens. Many homeowners call us after noticing rooms that never quite match the thermostat, rising utility bills, or uneven airflow.

We track down the root causes—often a mix of duct leakage, airflow bottlenecks, or control issues—and resolve them with measured, lasting fixes. Plumbing expertise is equally central to who we are. Hard water is a fact of life in the Hill Country, and we routinely install water softeners and filtration systems to protect fixtures and improve taste. From efficient water heater replacements and tankless upgrades to fixture installations, slab leak detection, and dependable drain clearing, our licensed plumbers approach each job with careful diagnostics and respect for your home. W