Dennison may be a small prairie community, but our weather swings are anything but mild. Sub-zero January nights, steamy July afternoons, and damp shoulder seasons all push your HVAC system to its limits. Streitz Heating & Cooling is just minutes away, ready with same-day diagnostics, factory-trained technicians, and workmanship guarantees that protect your comfort. From emergency furnace repairs to smart-thermostat upgrades, we keep Dennison households efficient, healthy, and cozy in every season.

Open fields mean open exposure—summer humidity and winter wind-chill can both hit Dennison hard. Count on our full lineup of residential services:

Our technicians are neighbors first and HVAC pros second. We arrive in clean trucks, listen to your concerns, and diagnose problems with state-of-the-art tools—not guesswork. You’ll receive a clear explanation of what’s wrong, what it costs to fix, and how long it will take—no upsells, no jargon. Whether it’s a quick capacitor swap or a high-efficiency heat-pump retrofit, you approve every step before we lift a wrench.

Choosing Streitz means choosing efficiency. We specialize in ENERGY STAR® equipment, smart thermostats that shave peak-hour costs, and sealed-duct solutions that keep conditioned air where it belongs. Many Dennison homeowners recoup their investment through utility rebates and lower monthly bills in just a few seasons. Plus, our workmanship warranty and 24/7 live phone support have your back long after installation day.