AC Replacement in Lewisville, TX
Three flat-rate residential replacement tiers, $8,000-$20,000+. R-454B / R-32 only. Frosty Thermostat free. Licensed TACLA126718E. Financing with $0 down on approved credit.
Where in Lewisville Do We Install R-32 Systems?
Our team services Lewisville 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 and installation 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 AC Replacement Cost in Lewisville?
AC replacement in Lewisville runs $8,000-$20,000+ depending on tier, tonnage, and ductwork condition. All three tiers are flat-rate — the price I quote during the free in-home estimate is the price you pay at install. Financing available with $0 down on approved credit.
Stay Cool
Goodman · 15 SEER2 · Single-stage
1-year labor warranty
- Frosty Thermostat (smart WiFi thermostat)
- New disconnect box
- Electrical whip
- Overflow condensate shutoff
Stay Frosty
Carrier · 18 SEER2 · Dual-stage
2-year labor warranty
- Everything in Stay Cool
- Ductwork inspection + sealing (up to 5 connections)
It's A Frosty Life
Trane · 20+ SEER2 · Variable speed
5-year labor warranty
- Everything in Stay Frosty
- Full ductwork inspection + sealing
- Vibration isolation mounts
- 1-year Frosty Club included ($99 value)
Add-on: 10-Year Labor Warranty +$3,500
Adjustments: Electric system −$1,000 · Heat pump +$2,000
Financing Available
$0 down on approved credit through Optimus, Synchrony, GreenSky. A $12,000 Stay Frosty at 9.99% for 120 months runs about $159/month. 50% deposit required at booking.
See Financing OptionsWhat's Included With Every Lewisville AC Replacement?
Every tier — Stay Cool, Stay Frosty, It's A Frosty Life — includes the same baseline package. No bait-and-switch, no surprise add-ons at install. Here's exactly what you get.
Why Do Lewisville Homeowners Choose Frosty's for AC Replacement?
Lewisville AC replacement spans a wider equipment age range than almost any city I serve. Old Town Lewisville 1960s-1970s ranches are on their second or third system — the current unit is often a 2005-2012 builder-grade 13 SEER that's now dying at 15-20 years. Valley Vista homes (established 1986) follow a similar pattern. Then Castle Hills — the 2,900-acre master-planned community with 4,300+ homes built since 1998 — has original 14-16 SEER equipment from the early 2000s hitting end of life, plus newer luxury builds where homeowners want 20+ SEER2 variable-speed from day one. I size every system with a Manual J load calculation because Lewisville's housing stock varies too much to eyeball tonnage.
Lewisville Lake humidity makes the dual-stage vs. variable-speed decision more consequential here than in inland DFW. Variable-speed equipment (It's A Frosty Life tier, Trane 20+ SEER2) runs longer at lower capacity, giving the evaporator coil more dwell time to condense moisture out of the air. On Castle Hills homes running 3.5-5 ton systems across 3,000-5,000 sqft, this typically drops indoor humidity 4-7 percentage points compared to single-stage — a difference you can feel. For Valley Vista and Old Town 1,500-2,500 sqft homes, dual-stage (Stay Frosty, Carrier 18 SEER2) hits the sweet spot between efficiency and cost. All new installs use R-454B or R-32 refrigerant per current EPA regulations.
Every Lewisville replacement includes: Frosty Thermostat with dehumidification mode (our smart WiFi thermostat), new disconnect box, electrical whip, overflow condensate shutoff with float switch, condensate drain treatment, copper line inspection (replaced if needed), City of Lewisville permit, and full cleanup/haul-away. Labor warranty scales with tier: 1-year on Stay Cool, 2-year on Stay Frosty, 5-year on It's A Frosty Life. Financing through Optimus, Synchrony, and GreenSky — $0 down on approved credit. I'm Omar Jacobo (EPA 608 Universal #2396328), and Mariafernanda holds TACLA126718E.
Neighborhoods we serve in Lewisville: Castle Hills, Valley Vista, Old Town, Vista Ridge, Highland Village
Why Should I Trust Frosty's Credentials for AC Installation?
Because a new system install is a $10,000+ decision — and Texas law requires a licensed contractor to pull the permit. Every credential below (TACLA126718E, EPA 608 #2396328, 99 Google reviews) is independently verifiable before we touch your home.
TACLA126718E
Texas HVAC Contractor License held by Mariafernanda Jacobo. Every install permitted under this license with the TDLR.
EPA 608 Universal
Omar Jacobo, #2396328. Required by the U.S. EPA for all new R-454B and R-32 installs under the 2025 refrigerant phase-down.
ENERGY STAR Partner
All three tiers meet or exceed ENERGY STAR SEER2 minimums. Stay Frosty and It's A Frosty Life qualify for utility rebates in many ERCOT territories.
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
- Heating Repair in Lewisville/heating-repair-lewisville-tx
- Heating Replacement in Lewisville/heating-replacement-lewisville-tx
- Ductwork in Lewisville/ductwork-lewisville-tx
- Emergency HVAC in Lewisville/emergency-hvac-lewisville-tx
- Tune-Up in Lewisville/tune-up-maintenance-lewisville-tx
Nearby Cities We Also Serve
Same flat-rate ac replacementpricing across every city we cover. If you're in a Lewisville-adjacent neighborhood, these pages have local details for your ZIP.
- AC Replacement in Flower Mound/ac-replacement-flower-mound-tx
- AC Replacement in The Colony/ac-replacement-the-colony-tx
- AC Replacement in Highland Village/ac-replacement-highland-village-tx
- AC Replacement in Carrollton/ac-replacement-carrollton-tx
- AC Replacement in Coppell/ac-replacement-coppell-tx
- AC Replacement in Corinth/ac-replacement-corinth-tx
From Our Blog
Deeper context on ac replacement 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 →
- 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 →
- Should You Repair or Replace Your AC? The Honest AnswerRepair or replace your AC? The 50% rule, age factors, R-410A costs, and real DFW pricing to help you decide. Call (469) 254-0548.Read article →
What Do Lewisville Homeowners Ask About AC Replacement?
How much does a new AC system cost in Lewisville, TX?
Flat-rate pricing by tier: Stay Cool (Goodman 15 SEER2) $8,000-$14,000, Stay Frosty (Carrier 18 SEER2 dual-stage) $12,000-$18,000, It's A Frosty Life (Trane 20+ SEER2 variable speed) $16,000-$20,000+. Heat pump adds $2,000; 10-year labor warranty adds $3,500. Exact price depends on tonnage — Castle Hills luxury homes typically need 4-5 ton systems at the higher end of each range.
What SEER rating should I get in Lewisville?
For most Lewisville homes, 18 SEER2 dual-stage (Stay Frosty) is the smart choice — it handles lake-proximity humidity better than single-stage and pays back in Oncor bills within 7-10 years. Castle Hills homes over 3,000 sqft benefit from 20+ SEER2 variable speed (It's A Frosty Life) for superior dehumidification. Old Town 1,500-2,000 sqft ranches can stay comfortable with 15 SEER2 (Stay Cool) if budget is the priority.
How long does AC installation take in Lewisville?
Standard residential replacement is one full day (8-10 hours). Castle Hills homes with larger systems or attic access challenges can take 2 days. We pull the City of Lewisville permit before starting and the inspector typically comes out within 2-3 weeks after installation.
Do you offer financing for AC replacement in Lewisville?
Yes — Optimus, Synchrony, and GreenSky with $0 down on approved credit. 50% deposit at booking, balance on completion. Applications take 5 minutes and most Lewisville homeowners get approved same-day. Monthly payments on a mid-range Stay Frosty system run roughly $250/month over 60 months.
Should I replace both the indoor and outdoor units at the same time in Lewisville?
Yes — matched systems are what we install. Mixing a new condenser with an old evaporator coil voids the manufacturer warranty and hurts efficiency. On 15+ year old Lewisville systems — whether Old Town ranches or early Castle Hills builds — both the indoor and outdoor components are at end of life around the same time. Full matched replacement is the only approach we recommend.
Should I Replace My Old R-22 AC System 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 I Need to Replace My R-410A System in Castle Hills and Valley Vista Because of the AIM Act?
No — not just because of the AIM Act. R-410A production for new equipment ended Jan 1, 2025 under the AIM Act (Energy.gov), but existing systems remain serviceable indefinitely under EPA 608 Universal cert #2396328. I'd only recommend replacing a Castle Hills and Valley Vista R-410A system if it's past 12-15 years old, has compressor failure, or has a major leak that makes ongoing recharges (R-410A at $100/lb installed, plus $250-$500 leak detection) uneconomical. New replacements use R-454B or R-32 only. Read our R-410A phase-out explainer for DFW homeowners.
How Do I Get Started with Frosty's in Lewisville?
Free in-home estimate. Flat-rate pricing. $0 down financing on approved credit. Installation typically within 1-2 weeks.
Written by Omar Jacobo, EPA 608 Universal Certified Lead Technician at Frosty's HVAC LLC. Licensed TACLA126718E. Frosty Club Basic $99/yr · Premium $300/yr.
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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