Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateLennox HVAC in Boulder City, NV | Dalton Heating & Air Henderson
We’re Dalton Heating & Air Henderson, and we provide independent Lennox service across Boulder City, from the historic district to the newer lots near Veterans’ Memorial Drive. What makes our Lennox work different here is simple: we’ve been diagnosing and retrofitting Lennox equipment in Boulder City homes that were built for Hoover Dam workers in the 1930s, not for 21st-century cooling demands. Call (775) 593-7060 for our AC Repair in Boulder City when your Lennox system stops holding temperature, and we’ll send a technician who knows this town’s housing stock as well as its equipment.
Why Boulder City Residents Choose Us for Lennox Service
Lennox equipment is precise machinery, and precision matters when the Mojave summer pushes your system past 105°F day after day. We carry Lennox sales & service expertise that goes beyond brand familiarity: our techs are factory-trained on the Elite®, Signature®, and Merit® Series lines, including variable-capacity compressors and iComfort thermostats. Boulder City homeowners call us because a tech who knows Lennox controls can fix an XC25 high-pressure trip in one visit instead of three.
Marco Benitez, our owner, learned the trade at Los Angeles Trade-Technical College and has put in nearly two decades of HVAC work across the Southwest before building this crew in Henderson. He’s the kind of guy who will tell you a repair number before touching anything, and he makes sure every tech on our team follows the same rule. We’re an independent Lennox service provider. That means we work for you, not a manufacturer’s quota, and we choose parts based on what’s right for your unit and your Boulder City home, not what a corporate program dictates.
Every Lennox repair we do carries a written guarantee for a full year. If the work fails in that time, we return at no charge. That’s The Garrison Standard we’ve operated under since 2003, and it’s non-negotiable.
Styles & brands we work with
Common Lennox HVAC Problems We Solve in Boulder City
Lennox makes reliable equipment, but Boulder City’s desert conditions create specific failure patterns. Here’s what we see most often on Lennox systems in this town:
- High-pressure lockouts on XC21 and XC25 compressors: Boulder City’s 105°F+ afternoons push two-stage and variable-capacity compressors hard. Fine Mojave dust and cottonwood debris clog condenser coils, and the system trips the high-pressure limit as a safety measure. We clean the coil, verify refrigerant charge, and test the pressure switch before condemning anything.
- Ignition lockouts on SLP98V gas valves during winter temperature swings: Boulder City’s winter nights drop fast, and units near open desert lots pull spiders into burner orifices. The gas valve senses a bad flame signal and locks out. We clear the orifices, test the ignitor with a microamp meter, and clear the lockout properly, not by cycling power and hoping.
- iComfort S30 thermostats losing Wi-Fi after monsoon lightning: Thunderstorms rolling through Boulder City’s power grid knock these thermostats offline, and they revert to factory default schedules. Your AC runs at the wrong times, and you think the system’s broken. We re-establish the connection, reprogram the schedule, and install surge protection at the control board where it counts.
- Evaporator coil corrosion and R-410A leaks: Boulder City’s very low indoor humidity accelerates coil corrosion, especially in homes that ran evaporative coolers for decades before converting to central AC. The residual mineral deposits eat at the coil. We pressure-test with nitrogen, find the leak, and replace the coil or line set correctly.
- Failures caused by abandoned swamp cooler openings: Many Boulder City homes still have original evaporative cooler mounts and duct transitions from before central AC was standard. Those openings leak conditioned air and invite pests. We seal them properly before evaluating whether your Lennox equipment is actually sized right for the home.
Lennox Service in Boulder City: What Local Conditions Mean for Your Equipment
Boulder City’s original 1931 – 1935 Bureau of Reclamation housing plans specified 2-inch masonry walls and no central air. That single historical fact shapes nearly every Lennox retrofit we do here. Today, our Heat Pump Installation in Boulder City requires matching the condenser pad height to the historic district’s 18-inch setback from property lines, a code requirement unique to Boulder City’s preservation overlay. Installers from Henderson or Las Vegas who don’t know this fail inspection on their first job here. We know it because we’ve done it.
The older homes also carry that 1930s construction through every modern installation. Two-inch masonry walls mean different line set routing. Low-slope roofs mean roof-mounted equipment sits differently than it would on a newer Henderson tract home. None of this stops a Lennox retrofit from working, but it changes how the job gets done, and it’s why we send techs who have actually worked on Avenue B, not just pulled into Boulder City for the day.
Lennox Models & Products We Service in Boulder City
We service the full Lennox residential lineup: Merit® Series entry-level systems, Elite® Series two-stage equipment, and Dave Lennox Signature® Collection variable-capacity units like the XC25 and SLP98V. We also work on Lennox ductless mini-splits, which fit Boulder City’s older homes well when ductwork isn’t worth saving.
On parts, we carry Lennox OEM capacitors, ignitors, and control boards for Signature® models on our trucks. When a unit is out of manufacturer warranty and OEM lead times stretch, we use proven aftermarket motor modules and pressure switches. We’ll tell you which part your Lennox needs and why, in plain English, before we install anything. For Boulder City turnaround, that means fewer multi-day waits on parts that should have been stocked locally anyway.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Boulder City
Here’s what to expect, in writing, before any work begins. These are real ranges based on the Lennox systems we service in Boulder City, not a bait number:
| Service | Price Range |
|---|---|
| Lennox AC Repair | $150 – $650 |
| Lennox Furnace Repair | $150 – $700 |
| Lennox AC Installation | $3,500 – $7,500 |
| Lennox Tune-Up | $80 – $200 |
What drives repair cost is the part that failed: a run capacitor is cheap; a variable-speed ECM motor is not. What a free estimate includes is the diagnostic, a written price before any work starts, and an honest conversation about whether repair or replacement is the smarter money for a Boulder City home. That last part matters. If a compressor replacement exceeds $2,200 on a Merit® Series unit over 12 years old, we’ll tell you to consider putting that money toward a new variable-capacity Elite® system with a 10-year parts warranty. Call (775) 593-7060 for an exact quote, written, with no obligation.
Serving Boulder City, NV - Our Local Coverage Area
We’re based in the Boulder City area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – Lennox HVAC in Boulder City
In nearly every case we see in Boulder City, this is a clogged condenser coil. Fine Mojave dust and cottonwood buildup restrict airflow across the coil, and at 105°F+ the system can’t reject enough heat, so the high-pressure switch trips as a designed safety response. At night, when outdoor temperature drops, the pressure stays under the limit and the unit runs fine. We clean the coil with a proper foaming coil cleaner, check the fan capacitor, and verify refrigerant charge. If a variable-capacity unit is still tripping after that, we test the pressure transducer itself. Call (775) 593-7060 and we’ll get it sorted before the next heat wave hits.
Sometimes, but not automatically. Original ductwork in Boulder City’s 1930s – 1940s homes was often sized for gravity heat or swamp cooler air, not the static pressure a high-efficiency Lennox SLP98V produces. We measure static pressure and inspect the ducts for leaks, especially around abandoned swamp cooler transitions, before recommending anything. If the ducts are sealed and sized acceptably, we’ll keep them. If they’re leaking 30% of your conditioned air into the attic, replacing the furnace first is throwing money at the wrong problem. We’ll show you the numbers and let you decide.
Yes, and we do this regularly. Lightning activity near Boulder City’s grid can interrupt power just long enough to knock the S30’s Wi-Fi module offline, and the thermostat reverts to default programming. You don’t need a new system. We reconnect the thermostat, reprogram your schedule, and in homes where this happens repeatedly, we install surge suppression at the control board level, which is where it actually helps. This is usually a one-visit fix.
No, but a dirty one will. The SLP98V is a variable-speed furnace, meaning the ECM blower motor adjusts to static pressure changes. A 2-inch pleated filter that loads with Mojave dust raises static pressure, and the blower works harder to maintain airflow, which increases motor heat and can shorten ECM module life over years of neglect. Change the filter during dust storm season, every 30 days if you’re running the system hard. A clean filter costs a few dollars; an ECM motor module costs several hundred.
Condenser coil cleaning and capacitor replacement, but the swamp cooler opening itself causes more problems than any single part failure. Abandoned evaporative cooler mounts leak conditioned air directly outside and pull in dust and pests. We’ve sealed openings in laundry rooms, hall closets, and attic knee walls across Boulder City, including a 20-inch hole in a 1938 home on Avenue B that was feeding the attic with cold air for years. The Lennox system wasn’t broken; it was fighting a hole in the house. If your Boulder City home still has a swamp cooler cutout, have it sealed before you spend on Lennox repairs. Call (775) 593-7060 and we’ll inspect it.
Service Areas Near Boulder City
In addition to Boulder City, our service area covers Henderson, Spring Valley, Anthem, Green Valley, and Whitney. We run Lennox service in Henderson daily, and Lennox service in Spring Valley is a regular route for our techs. If you’re in Boulder City or anywhere nearby in the Las Vegas Valley, call (775) 593-7060. We also cover the broader Boulder City service area, including the historic district and homes older than most of our competitors’ trucks.
Book Your Lennox Service in Boulder City Today
Your Lennox system works hard in Boulder City heat, and it deserves a tech who knows the equipment and the town. Call (775) 593-7060 for a free estimate, a written price before any work starts, and a full-year written guarantee on every repair. We’ll show up inside the window, and the price on the estimate is the price you pay.
Written by Marco Benitez, Owner at Dalton Heating & Air Henderson, serving Boulder City since the neighborhoods were still learning what a heat pump was.