AC Repair, Heating & HVAC Service in Sunnyvale, TX
5-star, repair-first HVAC service across Sunnyvale (Dallas County). $0 Free Diagnostics, upfront flat-rate pricing, and zero pressure to replace repairable equipment.
Your Local, Repair-First HVAC Team in Sunnyvale, TX
Sunnyvale sits right on our primary corridor between East Dallas and Kaufman County along US-80. From Stoney Creek and Sunnyvale Estates to custom acreage homes, Sunnyvale homeowners get our fastest dispatch times and Free Diagnostics.
In Sunnyvale, summer attic temperatures routinely exceed 135°F–145°F while winter cold fronts test gas furnaces and heat pump defrost boards overnight. That extreme thermal swing exposes weak run capacitors, pitted contactors, restricted evaporator coils, and leaking refrigerant lines fast.
Our philosophy in Sunnyvale is simple: Maintain first, repair second, replace last. We diagnose your system completely free ($0 diagnostic fee) and present clear, flat-rate repair options before touching a tool.
Why Sunnyvale Homeowners Choose SunDollar
- ✓
$0 Free Diagnostics (No Trip Fee)
Know exactly what failed and what it costs to fix before any work begins — zero service call fee in Sunnyvale.
- ✓
Repair-First Philosophy
If a straightforward capacitor or sensor repair restores your comfort, we fix it on the spot instead of pushing a $10,000 replacement.
- ✓
Upfront Online System Pricing
Need a new unit? View our exact installed bundle prices online for Goodman, Amana, American Standard, Oxbox & LG.
- ✓
1-Year Repair & 10-Year Install Warranty
Every repair is backed for a full year, and new system installations carry 10-to-12-year parts warranties.
HVAC Services Available in Sunnyvale, TX
AC Repair in Sunnyvale
Compressor, evaporator coil, capacitor, contactor, and refrigerant leak diagnostics
Furnace Repair in Sunnyvale
Gas valve, igniter, flame sensor, blower motor, and CO safety inspections
Heat Pumps in Sunnyvale
Reversing valve, defrost board, inverter compressor, and dual-fuel tuning
AC & System Installation in Sunnyvale
Manual J load calculations & precision installation on all major brands
Upfront HVAC Bundles in Sunnyvale
Compare 1.5–5 Ton installed system prices online with 10-year warranty
Ductless Mini-Splits in Sunnyvale
Exclusive LG Pro Dealer — ductless installation, repair & deep cleaning
Ductwork & Airflow in Sunnyvale
Fix hot upstairs rooms, seal leaky attic ducts & balance CFM airflow
AC Tune-Up & Maintenance in Sunnyvale
Seasonal 40-point tune-ups & $19.85/mo property-wide Care Agreement
24/7 Emergency HVAC in Sunnyvale
Same-day priority dispatch for urgent AC and heating breakdowns
Transparent HVAC Pricing for Sunnyvale Homeowners
We publish our pricing openly so Sunnyvale homeowners never have to sit through a high-pressure sales presentation.
A licensed technician tests your system, identifies the root cause, and provides an exact flat-rate repair quote before any work starts.
Includes bi-annual 10-step tune-ups, coil cleaning, priority emergency dispatch, 10% off all repairs, and 5% off system replacements.
Compare complete installed Heat Pump, Gas Furnace & Electric packages from Goodman, Oxbox, Ameristar, Amana, American Standard & LG.
Get a $0 Free Second Opinion or Check Our Full Repair Pricing Guide
Before you spend thousands replacing a repairable AC or furnace in Sunnyvale, let our licensed technicians verify the diagnosis for free.
What Texas Homeowners Say About SunDollar
Homeowners in Sunnyvale and across Dallas County trust us for honest diagnostics, zero sales games, and dependable craftsmanship.
“Another company told us our compressor was dead and quoted $11,500 for a whole new system. SunDollar came out for a free second opinion, found a failed dual capacitor and burnt wire, and had our AC blowing ice cold in 40 minutes for a fraction of the cost!”
“Refreshing to work with an HVAC company that actually publishes their prices online and doesn't charge a trip fee just to walk through the door. Fast same-day dispatch, spotless work, and super respectful technician.”
“We signed up for the $19.85/month maintenance agreement because our home has two AC units and every other company wanted $45/month for two systems. They tuned up both units thoroughly and never tried to upsell us.”
Frequently Asked HVAC Questions in Sunnyvale, TX
Straight answers for homeowners in Sunnyvale (Dallas County).
How much does AC or furnace repair cost in Sunnyvale, TX?
SunDollar provides a $0 Free Diagnostic (No Service Fee and no trip charge) for homeowners in Sunnyvale, TX. After inspecting your system, our licensed technician explains the exact failure and gives you upfront flat-rate repair options before any work begins. Most common repairs like capacitors, contactors, igniters, or condensate drain clearing typically range from $300 to $700.
Do you offer same-day emergency HVAC repair in Sunnyvale?
Yes. We offer same-day AC and furnace repair across Sunnyvale (including ZIP codes 75182). Urgent no-cool and no-heat calls are prioritized, and our service trucks are stocked with universal and OEM parts to complete most repairs in a single visit.
How much does a new AC or complete HVAC replacement cost in Sunnyvale, TX?
Complete installed HVAC system bundles in Sunnyvale start at $7,062 (with current 10% promotion on 14 SEER2 systems) and range up to $12,645 depending on tonnage (1.5 to 5 Ton), efficiency (14 to 17 SEER2), and brand (Goodman, Oxbox, Ameristar, Amana, American Standard, and LG). Every installation includes a Manual J load calculation, new thermostat, safety float switch, nitrogen braze, and 10-to-12-year parts warranty.
Which neighborhoods and ZIP codes in Sunnyvale do you service?
We service every residential neighborhood and commercial corridor in Sunnyvale, TX (Dallas County) — including Stoney Creek, Sunnyvale Estates, The Homestead, Collins Road Corridor — covering ZIP codes 75182. There are never any destination or trip fees.
What HVAC brands do you repair and install in Sunnyvale?
Our EPA-certified technicians (License #TACLA45889E) repair and maintain all major brands in Sunnyvale, including Trane, Carrier, Lennox, Amana, Goodman, American Standard, Daikin, Bryant, Rheem, Ruud, York, RunTru, and Oxbox. We are also an Exclusive LG HVAC Pro Dealer specializing in variable-speed inverter heat pumps and ductless mini-splits.
Do you offer an HVAC maintenance plan for Sunnyvale homes with multiple units?
Yes! Our Access Comfort Care Agreement is just $19.85/month flat rate per residential property — covering EVERY HVAC system on your Sunnyvale property with no per-unit upcharges. It includes bi-annual 10-step tune-ups, priority scheduling, 10% off all repairs, and 5% off system replacements.
Also Serving Communities Near Sunnyvale
We cover these neighboring cities near Sunnyvale, TX with the same $0 Free Diagnostics and flat-rate pricing.
Ready for honest HVAC service in Sunnyvale?
Schedule online in 60 seconds or speak directly with our local dispatch team. $0 Free Diagnostics — no surprises.