AC Repair
AC REPAIR IN LEHI — SAME-DAY, BUILDER-GRADE TO VARIABLE-SPEED
AC blowing warm? Tripping the breaker? Variable-speed unit stuck in full-stage mode? Smart thermostat fighting the dampers? Our Lehi crew diagnoses every brand and config — same-day during business hours, 45–75 minute dispatch in heatwaves.

4.8★ on Google
3,132+ reviews
24/7 Emergency
60–90 min dispatch
Licensed & insured
Utah plumbing contractor
5 Utah counties
50+ cities served
Flat-rate pricing
Quoted before we start
Overview
What actually fails on Lehi cooling systems
Most AC repair calls in Lehi follow a different distribution than older parts of the valley. The classics still happen — capacitor, contactor, dirty coils, low refrigerant from a leak, condensate drain float-switch lockouts. But Lehi adds a layer most other markets don't have: builder-grade installs from 2010–2015 hitting their first failure window with cheap zone-damper actuators that fail silently, smart-thermostat C-wire issues that look like AC problems, variable-speed inverter boards that throw cryptic fault codes nobody on the truck knows how to read, and undersized return ductwork choking newer high-MERV media filters and freezing coils.
Our techs run a full diagnostic in 15–25 minutes — longer on dual-zone and variable-speed systems because there's more to test. You see the readings. You get the flat-rate quote before any part comes off the truck. If the right call is "this 12-year-old builder unit needs replacement, not a $1,800 patch," we tell you that on-site instead of running up the bill.
Lehi summers also push systems hard. Sustained 95°+ daytime temps mean compressor runs of 10–12 hours straight. Stronger wind gusts off the Wasatch on Traverse Mountain bench-side homes mean more cottonwood, dust, and pollen hitting outdoor coils. Constant new construction across Cold Springs Ranch, Ivory Ridge, and Holbrook Farms expansion adds dust to indoor coils faster than older neighborhoods. All of that compounds on a system that wasn't built for it.
Common Lehi-specific repairs we handle
- Capacitor replacement — most common failure across all systems, $185–$295, 30-minute fix
- Contactor replacement — second most common, $245–$385
- Damper actuator replacement — Lehi-specific, common on 2010–2015 builds. $185–$425 per actuator
- Smart thermostat C-wire / control wire repair — $185–$385. Often misdiagnosed as a thermostat problem
- Variable-speed inverter board diagnosis — Carrier Greenspeed, Trane CleanEffects, Lennox iComfort fault codes. $485–$1,250 for board, less for sensors
- Fan motor (condenser or blower) — $485–$925 depending on unit
- Refrigerant recharge + leak repair — $325–$1,100 depending on leak type
- Evaporator coil cleaning — $225–$385, often paired with annual maintenance
- Condensate pump or drain line clearing — $145–$285
- Compressor replacement — $1,800–$3,400 (usually a replace-the-whole-unit conversation)
What Valley does differently
Every truck carries the top 25 most common Lehi repair parts — capacitors, contactors, fan motors in common sizes, control boards for major brands, damper actuators (Honeywell ARD, EWC ND, Zonex), and a rotating stock of inverter boards. That means most repairs finish the same visit. If your system is in marginal shape, we give you the honest math on repair vs. replace before you put $2,000 into a 14-year-old unit with two summers left.
Members of the Quality Service Club skip the regular queue on busy heatwave days, get 15% off the repair, and the after-hours surcharge waived on emergency calls. For dual-unit Lehi homes (common on Traverse Mountain or Skye Estates floor plans), the dual-unit membership covers both systems for $299/year.
Free quote
Same-day AC repair quote in Lehi
Tell us what's happening — warm air, no start, breaker trip, zone wrong. We'll dispatch fast.
4.8★
24/7
Emergency
Free
Quote
Current coupons
View allFREE
AC tune-up inspection with any repair
One per Lehi household. Must mention at booking.
Expires 12/31/2026
$50 OFF
AC repair over $500
Standard pricing. One offer per household.
Expires 12/31/2026
Mention coupon when booking. One offer per household.
Warning signs
Signs Your Lehi AC Needs a Tech
Most AC failures show warning signs for days or weeks before full shutdown. If you're seeing these, don't wait for the breakdown on a 98° Saturday.
AC running but blowing warm or lukewarm air
House takes hours to cool to setpoint on 90°+ days
AC short-cycles — runs a few minutes, shuts off, repeats
Humming, buzzing, or grinding from the outdoor unit
Ice forming on the refrigerant line at the outdoor unit
Water pooling around the indoor air handler
Breaker for the AC keeps tripping
Variable-speed unit stuck running at full-stage instead of modulating
One zone always wrong — upstairs 12°F off, or basement freezing
Smart thermostat showing 'cooling' but no actual cool air
Power bill spiked with no change in settings

Peak summer
95°+ heatwave and AC out? Get in the Lehi queue now.
During peak heat we run extended crew rotations and priority-dispatch QSC members first. Don't wait for the first full day without AC — call at the first symptom.
Summer dispatch
24/7
Across Salt Lake, Utah, Davis, Weber, and Tooele counties.
The Process
How an AC Repair Visit Works in Lehi

On the truck
Cable machine, jetter, and pipe camera — every call.
Triage on the phone
We ask a few questions — is it running, blowing warm, tripping breaker, making noise. Half the time we know the likely failure before the truck rolls. Lehi-specific: we ask if it's a dual-zone system and which zones are wrong.
Full-system diagnostic
Tech tests refrigerant pressure, capacitor, contactor, airflow, amperage draw, and thermostat call. For dual-zone systems, every damper actuator gets cycled. For variable-speed, the inverter board fault log gets pulled.
Quote + authorization
Flat-rate repair price before parts come out of the truck. If a $1,200 repair on a 14-year-old builder-grade system is dumb, we'll tell you.
Fix and verify
Parts on the truck = same-visit fix on 70% of calls. We verify cooling, airflow per zone, and pressures before leaving.
Post-repair check
Quality Service Club members get a free 30-day follow-up check to make sure the repair held.
Pricing
AC Repair Cost in Lehi
Flat-rate, quoted before any work starts. Peak-heat emergency dispatch adds $95–$150 (waived for QSC members).
AC diagnostic / service call
Low
$89
High
$129
Member
$76
– $110
Waived if you do the repair
Capacitor replacement
Low
$185
High
$295
Member
$157
– $251
Most common AC failure
Contactor replacement
Low
$245
High
$385
Member
$208
– $327
Unit won't start or hums
Zone damper actuator replacement
Low
$185
High
$425
Member
$157
– $361
Common on Lehi 2010–2015 builds
Smart thermostat C-wire / control repair
Low
$185
High
$385
Member
$157
– $327
Often misdiagnosed as a thermostat replacement
Refrigerant recharge + small leak repair
Low
$325
High
$685
Member
$276
– $582
R-410A, includes leak dye if needed
Refrigerant recharge + major leak repair
Low
$685
High
$1,400
Member
$582
– $1,190
Evaporator or condenser coil leak
Condenser fan motor
Low
$485
High
$725
Member
$412
– $616
Outdoor fan — usually audible failure
Blower motor (indoor)
Low
$485
High
$925
Member
$412
– $786
ECM vs. PSC motor affects price
Variable-speed inverter board
Low
$485
High
$1,250
Member
$412
– $1,063
Carrier Greenspeed, Lennox iComfort, etc.
Evaporator coil cleaning
Low
$225
High
$385
Member
$191
– $327
Restores lost efficiency — paired with tune-up
Condensate pump / drain line clearing
Low
$145
High
$285
Member
$123
– $242
When the float safety kicks AC off
Control board replacement (single-stage)
Low
$485
High
$875
Member
$412
– $744
Intermittent shutdowns, no response
Member pricing reflects the Quality Service Club 15% repair discount. Service call fees are separate.
Pricing for 2026 residential Lehi work. Mountain-side access, large-tonnage commercial, and rooftop units priced separately.
Quality Service Club
Skip the bill. Skip the line.
For $79 a year, members get 15% off every repair, priority dispatch on every call, and a free annual drain and plumbing inspection — the same stuff we'd charge $195 for on a cold call.
- 15% off repairs
- Priority dispatch
- Annual inspection
- 24/7 service access
- $25 referral bonus
- Parts + labor warranty
Plumbing
$79/year
- 15% off all plumbing repairs
- Priority dispatch — skip the line
- Annual drain piping inspection
- Full home water-supply inspection
- Tag on your emergency shut-off
- $25 referral bonus
HVAC (1 unit)
$199/year
- 15% off HVAC repairs
- Priority dispatch on furnace or AC calls
- Annual furnace + AC safety inspection
- Thermostat calibration and battery swap
- Outdoor condenser cleaning check
Plumbing + HVAC
$258/year
- Everything in both plans
- Whole-home annual inspection
- 15% off every service we offer
- Priority dispatch across plumbing and HVAC
Questions? Talk to a real human — (801) 341-4222
Cancel anytime. 1-year minimum.
FAQ
AC Repair FAQs in Lehi
Service calls run $89–$129 and are waived if you do the repair. The most common actual repair — a failed capacitor — is $185–$295. Most AC repairs fall between $200 and $700 total. Refrigerant work with a leak repair is higher, $325–$1,400. Damper actuator replacements (a Lehi-specific common one) run $185–$425. We quote flat-rate before any part comes off the truck.
Related services
Related Cooling Services in Lehi

AC Installation in Lehi
New variable-speed or two-stage AC — load-sized, permit-pulled, 10-year warranty.

AC Maintenance & Tune-Up
Annual pre-summer service — included in QSC HVAC membership.

Emergency AC Repair
After-hours and heatwave dispatch from the Lehi shop.

Refrigerant Recharge
R-410A and R-32 — leak find, seal, EPA-compliant recharge.

Ductless Mini-Split
Basement, casita, or garage office cooling — single and multi-zone.
Available Around the Clock
Emergency?
We answer 24/7.
Burst pipe, no heat, AC down? Real plumbers pick up — no answering machines. Valley Plumbing serves Salt Lake City and surrounding areas any time, day or night.
Licensed & Insured — Utah Plumbing Contractor