Emergency HVAC in Lewisville, TX
No cool on a 105°F day. No heat on a 25°F night. Gas smell at 2 AM. When HVAC fails, you need flat-rate, honest, fast response. $85 diagnostic, $250 after-hours, $0 overtime for Frosty Club members. Licensed TACLA126718E, EPA 608 Universal certified, family-owned since 2018.
Gas Smell or CO Alarm? Call 911 + Atmos Energy FIRST
Gas smell: Leave the house immediately. Do not flip switches or light matches. From outside, call Atmos Energy: 866-322-8667. Atmos will shut off the gas at the meter. CO alarm sounding: Leave immediately and call 911 from outside. Once safety services have cleared the house, call us at (469) 254-0548 for diagnostic and repair. We NEVER repair cracked heat exchangers — those require full furnace replacement only.
Where in Lewisville Do We Run Emergency Calls?
Emergency response to Lewisville runs from our Farmers Branch base — 18 miles via I-35E North, roughly 22 minutes. We cover 75056, 75067, and 75077 including Castle Hills, Valley Vista, Old Town, Vista Ridge, and Highland Village border. Lewisville sits in Denton County.
Now serving Lewisville
Lewisville is about 22 minutes from our Farmers Branch shop up I-35E. Business-hours response is typically within 2 hours for Lewisville addresses. We carry coil-cleaning chemistry that handles freeway particulate (different formulation than residential-only suburb work), static-pressure test instruments for the Old Town apartment-conversion duct rework calls, plus ECM blower modules and communicating-system flashing tools for the Castle Hills two-stage and variable-speed Carrier and Trane equipment.
Lewisville climate context
Lewisville's defining HVAC challenge isn't the lake — it's the I-35E corridor itself. Old Town and the Mill Street area pull diesel particulate, brake dust, and tire rubber off one of the busiest stretches of I-35E in north Texas onto outdoor condenser coils, fouling fins faster than any DFW suburb away from a major freeway. Several 1970s-90s Old Town and Valley Vista properties were originally apartment buildings that got condo-converted or split into duplexes — the resulting daisy-chained ductwork and shared-attic mechanical layouts almost never balance airflow correctly without a static-pressure rework. Castle Hills' 4,300-home master-planned south end is a different animal: 2005-2020 luxury construction with two-stage and variable-speed equipment whose ECM control boards drift over time and need re-flashing more often than older single-stage gear. Three distinct repair patterns inside one ZIP map.
How Much Does Emergency HVAC Cost in Lewisville?
Every emergency repair in Lewisville is flat-rate, quoted before we touch anything. No hourly charges, no surprise add-ons. $85 diagnostic during business hours (waived with repair), $250 after-hours service call (zero for Frosty Club Basic members). Here's what the most common emergency repairs cost.
| Service | Regular Price | Frosty Club Member |
|---|---|---|
| Diagnostic / service call (business hours)(Waived with repair) | $85 | $72.25 |
| After-hours service call($0 for Frosty Club Basic) | $250 | $212.50 |
| Capacitor replacement | $500 | $425 |
| Contactor replacement | $600 | $510 |
| Blower motor (standard) | $750 – $1,500 | $637.50 – $1,275 |
| Compressor replacement | $3,500 – $5,000 | $2,975 – $4,250 |
| Furnace ignitor | $400 | $340 |
| Gas valve replacement | $400 – $1,200 | $340 – $1,020 |
Frosty Club Eliminates the Overtime Charge
Basic ($99/yr):$0 after-hours surcharge + 10% off all repairs | Premium ($300/yr): $0 overtime + 15% off + $500 repair credit + 2 free tune-ups
A single after-hours emergency saves $165 vs regular pricing. Most members break even on their first call.
Join Frosty ClubWhat Counts as an HVAC Emergency in Lewisville?
Some HVAC problems can wait until tomorrow. Others can't. Here's how I triage emergency calls in Lewisville — and what to do in each case.
No cooling, 95°F+ summer
Real emergency when elderly, infants, or anyone with medical conditions is in the house. DFW summer heat kills. Move family to coolest room, run fans, stay hydrated, call us immediately.
No heat, below 35°F
Emergency for elderly, infants, and pipe-freeze risk. Usually ignitor, flame sensor, gas valve, or pressure switch. $400-$1,200 range. Same-visit fix when parts are in stock.
Gas smell
LIFE SAFETY. Leave the house immediately, call Atmos Energy 866-322-8667 from outside, then 911. Do not flip switches. Once gas is shut off, call us to diagnose the source and repair.
CO alarm sounding
LIFE SAFETY. Leave the house, call 911 from outside. Usually a cracked heat exchanger (full furnace replacement, we NEVER repair) or vent leak (repairable). Never run the furnace until cleared.
Water leaking from air handler
Clogged condensate drain triggered the safety switch — or the pan overflowed and water is dripping from the ceiling. Shut off the breaker. Call us. Drain clearing runs $350 ($297.50 members).
Electrical burning smell
Shut off the breaker immediately. Usually a failing contactor, blower motor, or wire connection. Do NOT run the system until we diagnose. Repair is $500-$1,500 range.
Why Do Lewisville Homeowners Call Frosty's for Emergencies?
Lewisville emergency HVAC calls peak during three windows: the first sustained 100°F+ stretch in mid-June through July when capacitors pop across Old Town and Valley Vista, the first hard freeze in mid-December when furnace ignitors and flame sensors fail after months of summer dormancy, and any North Texas thunderstorm with voltage spikes that take out capacitors and contactors across Castle Hills and Vista Ridge. We're about 20-25 minutes from Lewisville via I-35E — faster than most Denton County competitors — so real emergency response is typically within 2 hours for Frosty Club Premium members (priority scheduling) and 2-3 hours for non-members. A human answers our phone, not an answering service. Call (469) 254-0548.
Here's what actually counts as an emergency worth a same-day call: AC fully down when it's 95°F+ and you have kids, pets, or elderly family; heat fully down when it's below freezing; water pooling from the attic onto your ceiling (clogged condensate drain — common in lake-humidity Lewisville homes); burning smell or visible smoke from the unit; suspected gas leak (call 911 and Atmos Energy first, then us); CO detector alarm near the furnace. If you're uncomfortable but nothing is actively dangerous or damaging the house, next-day scheduling usually saves money and gets the same repair.
Emergency diagnostic is the same $85 flat rate as a scheduled visit, waived with any repair. We do not charge emergency surcharges during business hours — flat-rate means flat-rate. After-hours service (before 7 AM or after 8 PM) runs $250 for non-members, $212.50 for Frosty Club Basic members, and Premium members pay the regular $85 with no overtime charge. Repair prices stay identical regardless of time: a capacitor is $500 at 2 PM or 2 AM. I'm Omar Jacobo (EPA 608 Universal #2396328); Mariafernanda holds TACLA126718E. The phone number is (469) 254-0548 — that rings directly to us.
Neighborhoods we serve in Lewisville: Castle Hills, Valley Vista, Old Town, Vista Ridge, Highland Village
Why Should I Trust Frosty's Credentials for Emergency HVAC?
Because every credential is independently verifiable and directly tied to the emergency — Texas HVAC Contractor License TACLA126718E regulates how we touch gas and electrical, EPA CO safety guidance governs every cracked-heat-exchanger call, and the U.S. Department of Energy documents why annual maintenance prevents the emergencies in the first place.
TACLA126718E
Texas HVAC Contractor License held by Mariafernanda Jacobo. Issued and regulated by the Texas Department of Licensing and Regulation.
EPA Combustion Safety
Per the U.S. EPA CO Safety Guide, cracked heat exchangers are a leading cause of residential CO poisoning. We NEVER repair — full replacement only.
DOE Emergency Preparedness
The U.S. Department of Energy recommends annual HVAC maintenance to prevent emergency breakdowns. Frosty Club Premium includes 2 tune-ups per year.
Learn more about our credentials on our About page or visit omar-jacobo.com.
Related Services in Lewisville
Frosty's covers every residential HVAC need in Lewisville, TX — one phone line, one flat-rate pricing book, one licensed (TACLA126718E) family-owned team.
- AC Repair in Lewisville/ac-repair-lewisville-tx
- AC Replacement in Lewisville/ac-replacement-lewisville-tx
- Heating Repair in Lewisville/heating-repair-lewisville-tx
- Heating Replacement in Lewisville/heating-replacement-lewisville-tx
- Ductwork in Lewisville/ductwork-lewisville-tx
- Tune-Up in Lewisville/tune-up-maintenance-lewisville-tx
Nearby Cities We Also Serve
Same flat-rate emergency hvacpricing across every city we cover. If you're in a Lewisville-adjacent neighborhood, these pages have local details for your ZIP.
- Emergency HVAC in Flower Mound/emergency-hvac-flower-mound-tx
- Emergency HVAC in The Colony/emergency-hvac-the-colony-tx
- Emergency HVAC in Highland Village/emergency-hvac-highland-village-tx
- Emergency HVAC in Carrollton/emergency-hvac-carrollton-tx
- Emergency HVAC in Coppell/emergency-hvac-coppell-tx
- Emergency HVAC in Corinth/emergency-hvac-corinth-tx
From Our Blog
Deeper context on emergency hvac written by Omar Jacobo (EPA 608 #2396328).
- What Is a SEER2 Rating? (And Why It Matters for Your Wallet)SEER2 ratings explained in plain English — how they affect your energy bills and what to look for when buying a new AC. Call (469) 254-0548.Read article →
- Coppell AC Maintenance: Protecting Your Two-Story HomeTwo-story Coppell home not cooling upstairs? AC maintenance tips for 2-story homes with exact costs. TACLA126718E. Call (469) 254-0548.Read article →
- How Long Does an AC System Last in Texas?How long should your AC last in Texas? 12-15 years with maintenance, less without. Learn the signs it's time to replace. Call (469) 254-0548…Read article →
What Do Lewisville Homeowners Ask About Emergency HVAC?
Do you offer 24/7 emergency HVAC service in Lewisville?
We offer emergency response during peak heat and cold seasons, and after-hours diagnostic/repair year-round. After-hours (before 7 AM or after 8 PM) is $250 for non-members, $212.50 for Basic members, and $85 for Premium members. We prioritize no-heat calls in freezes and no-AC calls over 95°F with vulnerable family members. Call (469) 254-0548.
What counts as an HVAC emergency in Lewisville?
True emergencies: AC fully down over 95°F with vulnerable family, heat fully down below freezing, water dripping from attic onto ceiling (clogged condensate drain — especially common near Lewisville Lake), burning smell or visible smoke, gas smell (call Atmos Energy first at 1-800-460-3030), or CO detector alarm near the furnace. If you're uncomfortable but safe, next-day service saves money.
How fast can you get to Lewisville in an emergency?
We're about 20-25 minutes from Lewisville via I-35E. Business-hours emergency response is typically within 2 hours for Frosty Club members (priority scheduling) and 2-3 hours for non-members. Castle Hills, Valley Vista, Old Town, Vista Ridge, and Highland Village-adjacent areas are all in the same response window.
Do you charge emergency surcharges in Lewisville?
No. We're flat-rate, which means flat-rate. Diagnostic is $85 during business hours (waived with repair) and $250 after-hours ($212.50 for Basic members, $85 for Premium members). Repair prices don't change based on time of day — a contactor is $600 at noon or midnight. No hidden fees.
My Lewisville attic condensate drain is dripping onto the ceiling — is this an emergency?
Yes, treat it as urgent. Lewisville Lake humidity means your AC pulls heavy moisture through the condensate line, and when it clogs, water backs up and saturates drywall fast — especially in Old Town and Valley Vista attics with limited overflow protection. Shut the AC off at the thermostat, put a bucket under the drip if accessible, and call (469) 254-0548. Drain clear is $350 ($297.50 for members); adding a float switch is $400 to prevent a repeat.
Do You Handle Emergency R-22 AC Failures in Castle Hills and Valley Vista?
Yes — EPA 608 Universal cert #2396328 lets me legally recover, recycle, and recharge R-22 under federal regulations. R-22 production ended in 2020 under the Clean Air Act phase-out (EPA.gov), so it now runs $200 per pound installed. A typical Castle Hills and Valley Vista R-22 leak repair totals $650-$1,000: electronic leak detection ($250) or nitrogen leak test ($500) plus recharge at $200/lb. Optional leak seal $350 — but it can void manufacturer warranties, so I only recommend it in specific cases. For systems past 12 years with major leaks, planning the transition to R-454B or R-32 is usually the better economics. Read our R-410A phase-out explainer for DFW homeowners.
Do You Handle Emergency R-410A AC Failures in Castle Hills and Valley Vista?
Yes — EPA 608 Universal cert #2396328 covers R-410A diagnosis, leak detection, and recharge. AIM Act 2025 phase-out (Energy.gov) affects new equipment manufacturing, not service work. For a Castle Hills and Valley Vista R-410A emergency, expect $250 electronic leak detection (or $500 nitrogen for complex leaks) plus recharge at $100/lb installed. Most repairs run same-day. Read our R-410A phase-out explainer for DFW homeowners.
How Do I Get Emergency HVAC Help in Lewisville Right Now?
Call (469) 254-0548 and Omar or Mariafernanda picks up directly — no call center, no commission scripts. 24/7 for true emergencies. We prioritize by health risk, not first-come-first-serve. Frosty Club members skip the queue automatically.
Written by Omar Jacobo, EPA 608 Universal Certified Lead Technician at Frosty's HVAC LLC. Licensed TACLA126718E.
Written by
By Omar Jacobo
Texas Licensed HVAC Contractor #TACLA126718E · EPA #2396328
Co-Owner of Frosty's HVAC LLC, serving DFW since 2018. Learn more
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