AC Repair in Sunnyvale, TX
Fast, honest, flat-rate residential AC repair in Sunnyvale. Diagnostic $85 (waived with repair). Licensed TACLA126718E, EPA 608 Universal certified, family-owned since 2018.
How Much Does AC Repair Cost in Sunnyvale?
AC repair in Sunnyvalestarts at $85 for the diagnostic (waived with any repair). Most common repairs fall in the $350-$1,500 range — we're flat rate, which means the price we quote before we start is the price you pay at the end. Frosty Club members save 10-15% on every repair.
| Repair | Regular Price | Frosty Club Member |
|---|---|---|
| Diagnostic / service call(Waived with repair) | $85 | $72.25 |
| Capacitor replacement | $500 | $425 |
| Contactor replacement | $600 | $510 |
| Condenser fan motor (standard) | $650 | $552.50 |
| Condenser fan motor (ECM) | up to $2,800 | up to $2,380 |
| Refrigerant leak find + fix + recharge | $350 – $1,000 | $297.50 – $850 |
| Condenser coil (incl. refrigerant) | $3,500 – $5,500 | $2,975 – $4,675 |
| TXV (incl. refrigerant) | $1,500 – $3,000 | $1,275 – $2,550 |
| Blower motor (standard) | $750 – $1,500 | $637.50 – $1,275 |
| Blower motor (ECM) | up to $2,800 | up to $2,380 |
| Compressor replacement | $3,500 – $5,000 | $2,975 – $4,250 |
| Evaporator coil replacement | $3,500 – $5,000 | $2,975 – $4,250 |
| Drain line clearing | $350 | $297.50 |
| Drain pan replacement | $1,200 | $1,020 |
| Float switch install | $400 | $340 |
| Hard start kit | $650 | $552.50 |
| Circuit board (universal) | $500 | $425 |
| Circuit board (ECM) | up to $3,500 | up to $2,975 |
| Basic thermostat | $350 | $297.50 |
| Programmable thermostat | $500 | $425 |
Save More with Frosty Club
Basic ($99/yr):10% off all services | Premium ($300/yr): 15% off + $500 repair credit + 2 free tune-ups
Join Frosty ClubWhat Are the Most Common AC Problems in Sunnyvale?
In my 8 years servicing Sunnyvalehomes, 80% of the emergency repair calls I get come down to a handful of issues. Here's what I see most often — and what each one typically costs to fix.
AC won't turn on
Usually a failed capacitor ($500), contactor ($600), or a tripped float switch. Diagnostic identifies the exact cause.
Blowing warm air
Low refrigerant from a leak, failed compressor, or iced-over evaporator coil. We find and fix leaks — we never gas-and-go.
Frozen evaporator coil
Restricted airflow or low refrigerant. Shut the system off and call us before it destroys the compressor.
Water leaking from indoor unit
Clogged drain line ($350) or damaged drain pan ($1,200). A $400 float switch prevents future water damage.
Loud grinding or rattling
Worn blower motor bearings, loose fan blade, or failing compressor. Don't ignore it — small noises become big repairs fast.
Short cycling (on/off/on/off)
Weak capacitor, oversized system, failing thermostat, or refrigerant problem. Short cycling kills compressors in under a year.
Why SunnyvaleHomeowners Trust Frosty's for AC Repair
Sunnyvale is about 35 minutes east of our Farmers Branch shop via I-30 and Belt Line Road — a unique Dallas County town with a zoning ordinance that mandates a 1-acre minimum lot size. That single rule shaped every HVAC install in 75182. With only 7,000 residents and every home on at least an acre, Sunnyvale's housing is almost entirely estate homes: 3,000-6,500 sqft customs in Pheasant Creek, Long Creek Ranch, Estates of Sunnyvale, and Hunter's Glen, most running dual-zone Carrier, Trane, or Lennox equipment with variable-speed blowers and zoning dampers.
The 1-acre lot rule creates repair patterns you don't see in denser DFW suburbs. Long refrigerant line sets between a closet air handler and a condenser pad placed 60-100 feet from the house are common — more pinhole leak opportunities at flare fittings, and charge precision that matters more than in tighter installations. Outdoor condensers sitting on open lots pick up more pollen, cottonwood seed, and dust than suburban units, which loads condenser coils and stresses compressors on 105°F afternoons. We see more capacitor failures per year in Sunnyvale than in denser east Dallas neighborhoods because of that runtime/debris combination. Refrigerant systems are hermetic — if charge is low, there's a leak we locate and fix, never a top-off.
Every Sunnyvale repair is flat-rate. I'm EPA 608 Universal certified (#2396328), Mariafernanda holds the Texas license (TACLA126718E), and Frosty's HVAC has been serving Dallas County since January 1, 2018. 94 Google reviews, 4.9 stars. Call (469) 254-0548 and a human answers.
Neighborhoods we serve in Sunnyvale: Pheasant Creek, Long Creek Ranch, Estates of Sunnyvale, Hunter's Glen, Sunnyvale ISD area
Why Our Credentials Matter
TACLA126718E
Texas HVAC Contractor License held by Mariafernanda Jacobo. Issued and regulated by the Texas Department of Licensing and Regulation.
EPA 608 Universal
Omar Jacobo, #2396328. Required by the U.S. EPA to handle any refrigerant legally. Universal = all refrigerant types (R-22, R-410A, R-454B, R-32).
94 Google Reviews
4.9 star average. All real customers. No review gating. Read them at our Google Business Profile.
Learn more about our credentials on our About page or visit omar-jacobo.com.
AC Repair FAQ for Sunnyvale, TX
How much does AC repair cost in Sunnyvale, TX?
Diagnostic is $85 flat (waived with any repair). Most Sunnyvale repairs land between $500 and $1,800: capacitor $500 ($425 for Frosty Club members), contactor $600 ($510), blower motor $750-$1,500, ECM blower up to $2,800, refrigerant leak find-fix-recharge $350-$1,000, compressor $3,500-$5,000. Flat-rate — you see the total before we start.
My Pheasant Creek home has a condenser 80 feet from the house — does the long line set cause issues?
Long line sets are more sensitive to pinhole refrigerant leaks at flare fittings and more critical on charge accuracy. On Sunnyvale's 1-acre lots, 60-100 foot line sets are normal, and we leak-test carefully before recharging — never gas-and-go because HVAC systems are hermetic. If charge is low, there's a leak we locate and fix, then recharge to manufacturer spec.
Do you offer same-day AC repair in Sunnyvale?
Yes — we're 35 minutes from Sunnyvale via I-30 and Belt Line. Same-day response during 95°F+ weather is routine across Pheasant Creek, Long Creek Ranch, Estates of Sunnyvale, and Hunter's Glen. Frosty Club members get priority scheduling. Call (469) 254-0548 for a real ETA.
My outdoor condenser on my 1-acre Sunnyvale lot gets really dirty — what should I do?
Open-lot Sunnyvale condensers pick up pollen, cottonwood, and dust fast. That debris insulates the condenser coil and drives head pressure up, which stresses the compressor. Twice-a-year coil cleaning (included in our $150 tune-up, $127.50 for members) is the preventive fix. For condensers that haven't been cleaned in 3+ years, the super tune-up ($1,300, $1,105 for members) pulls and deep-cleans both coils.
Why does my Sunnyvale AC short-cycle?
Short cycling usually means one of three things: a dirty or iced evaporator coil (restricted airflow), a weak capacitor causing hard-start issues, or an oversized system that was wrong-sized at install. On Sunnyvale's big custom homes, oversizing is a common mistake — some installers went with 5-ton on homes that really needed 3.5-4 ton. The $85 diagnostic identifies which one.
Related Services & Resources
Need AC Repair in Sunnyvale Right Now?
Call us or request service online. Same-day appointments available for Sunnyvale homeowners. Flat-rate pricing — no surprises, no hourly charges, no upsell scripts.
Written by Omar Jacobo, EPA 608 Universal Certified Lead Technician at Frosty's HVAC LLC. Licensed TACLA126718E.
Written by
Omar Jacobo
EPA 608 Certified Technician (#2396328) | Co-Owner, Frosty's HVAC LLC
Omar has been serving local homeowners since 2018. Learn more
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