Your thermostat is the brain of your home's HVAC system — if it's outdated, inaccurate, or malfunctioning, you're wasting energy and sacrificing comfort. Alphas Heating & Cooling, a family‑owned, 5‑star rated, BBB A+ company, has helped Tempe homeowners upgrade to smart, programmable, and high‑precision thermostats since 2025. From the ASU campus to Tempe Town Lake, from The Lakes to South Tempe, we handle everything from simple replacements to complex wiring and C‑wire solutions. We believe in fixing what can be fixed first, and we'll never pressure you into unnecessary upgrades. Free estimates, transparent pricing, and a commitment to quality that keeps our customers coming back.
We also provide full HVAC support — from AC tune‑up and emergency AC repair to refrigerant leak detection and compressor replacement. And when it's time to upgrade, we handle air conditioning installation with precision sizing. For a complete view of our capabilities, visit our Tempe AC and heating hub — your one‑stop resource for all things HVAC in Tempe.
Serving all Tempe neighborhoods — Downtown, South Tempe, The Lakes, ASU area, Kiwanis Park, and beyond.
Many AC problems start with the thermostat. If your cooling system is short‑cycling, not reaching set temperatures, or ignoring your commands, we check the thermostat first. Our air conditioning repair service includes thorough thermostat diagnostics as part of every AC call. We also handle compressor replacement, blower motor repair, and refrigerant leak detection. We recommend regular AC tune‑up to catch small thermostat calibration issues before they affect your comfort and bills.
When you're upgrading to a new AC system, we make sure your thermostat integrates seamlessly. Our air conditioning installation includes Manual J sizing and full system configuration. We'll set up your new thermostat to optimize performance, whether you choose a smart model or a traditional programmable unit. We also offer financing options and handle all permitting, making your upgrade stress‑free.
Your thermostat controls your heating too. As a licensed heating contractor, we ensure your thermostat communicates properly with your furnace or heat pump. We also perform heater maintenance and furnace repair to keep you warm during Tempe's cooler months. If your thermostat isn't calling for heat correctly, we'll fix it — and if your furnace itself needs repair, we've got you covered. We'll also check your thermostat's wiring to prevent future heating failures.
Our HVAC repair service goes beyond just the thermostat. We examine the entire system — from the thermostat wiring to the condenser and air handler. If your thermostat is sending wrong signals, we find the root cause. We also offer emergency AC repair for when your system fails completely, and we can upgrade your thermostat during the same visit to prevent future issues. We believe in fixing it right the first time.
If your home feels different than the thermostat reading, sensors may be failing or the unit may be miscalibrated. We test and replace if needed — especially common in older Tempe homes.
System turns on and off too frequently? Often a thermostat location or wiring issue. We diagnose and fix to protect your AC and furnace from unnecessary wear.
Smart thermostat not connecting to Wi‑Fi or app? We troubleshoot connectivity, update firmware, and restore remote control — perfect for snowbirds and busy ASU families.
Annual HVAC energy savings with proper programming
Precision temperature control for consistent comfort
Smart scheduling reduces strain during expensive hours
Smart thermostats learn your habits, adjust automatically, and let you control climate from anywhere — ideal for Tempe's long, hot summers and for managing energy costs near ASU or Tempe Town Lake.
We verify your HVAC equipment (conventional, heat pump, multi-stage) and ensure the new thermostat supports all functions.
Check for common wire; if missing, we install an adapter or run a new wire — no extra cost surprises. Many older Tempe homes need this.
Remove old thermostat, label wires, and connect new backplate with color‑coded terminals. We ensure tight, safe connections.
Secure the thermostat to wall, restore power, and boot up. For smart units, we connect to your Wi‑Fi.
Set heating/cooling stages, fan control, temperature differentials, and program schedules for maximum efficiency.
We install the manufacturer app, pair your device, show you geofencing, remote access, and energy reports.
Swipe → to see our step‑by‑step process. Most installations take under 90 minutes — minimal disruption to your day.
Absolutely. By automatically adjusting temperature when you're away or asleep, smart thermostats reduce AC runtime during Tempe's long, hot summers. Many customers save 15‑23% on cooling costs. Plus, SRP and APS often offer rebates for smart thermostat upgrades — we help you claim them.
Most smart and Wi‑Fi thermostats require a C‑wire to provide constant power. Many older Tempe homes (pre‑1990s) lack this wire. We offer two solutions: install a C‑wire adapter (power extender) or run a new wire. We'll assess during the free estimate — no surprises.
We install any thermostat you provide. However, we recommend letting us supply the unit so we can guarantee compatibility and full warranty support. Either way, our labor includes professional wiring and configuration. We'll never push a brand you don't want.
It could be either. Common causes: dead batteries, tripped breaker, blown low‑voltage fuse, or faulty transformer. We'll diagnose quickly with a multimeter. Most blank screen issues are resolved within an hour — and we'll check your entire system for safety.
Traditional: manual adjustment only. Programmable: set daily/weekly schedules. Smart: learns your preferences, allows remote control via app, uses geofencing, and provides energy usage insights. For Tempe's climate, we often recommend smart thermostats for the ability to adjust remotely during sudden heatwaves or when you're away from home.
Yes — many smart thermostats integrate with utility time‑of‑use plans. They can pre‑cool your home before peak rates hit and reduce usage during expensive hours. We'll configure your thermostat to optimize for SRP or APS rate plans, saving you even more.
Most installations take 60–90 minutes, including removal of the old unit, wiring, mounting, and configuration. If we need to run a new C‑wire, it may take an additional 30 minutes. We work efficiently to minimize disruption to your day.
Ready to take control of your home's comfort and energy costs? Call Alphas for professional thermostat service, installation, or repair — we'll treat you like family, because you are.
Call 480-709-5684
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