Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
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Ameristar Construction in Ontario, CA | Stallion Contractors
We provide independent Ameristar specialists service across Ontario, from full kitchen and bath remodels to roof replacements, with a crew that knows exactly how these builder-grade systems and the homes around them hold up under Ontario dust and heat. What separates us: we plan every remodel around the South Coast AQMD Rule 403 dust-control rules that Ontario enforces more aggressively than any neighboring city, so demolition, grading, and even a simple kitchen tear-out stay compliant. Ameristar equipment here lives inside homes built from the 1950s forward, and our service accounts for that. Call (855) 600-3192 for a free estimate.

Why Ontario Residents Choose Us for Ameristar Service
Most contractors in Ontario can hang drywall or swap a vanity. Fewer know what happens to an Ameristar M4AC4 condenser after five summers of Santa Ana wind dust and 105°F afternoons off the 60. Ruben Montoya grew up in Colton, not far from Pepper Avenue, and spent years on job sites across San Bernardino and Ontario before Stallion Contractors ever took its first remodel. He knows the difference between a coil that needs cleaning and one that needs replacement, because he’s pulled both out of Ontario closets and backyards. As an independent contractor, we’re not tied to Ameristar’s script. We diagnose on condition, source OEM parts where matching matters, and recommend replacement honestly when a repair won’t survive another Inland Empire summer.
Styles & brands we work with







Common Ameristar Construction Problems We Solve in Ontario
- Condenser coils clogging with Santa Ana wind dust. The M4AC4 series has tight fin spacing, and Ontario’s wind events drive dust straight into the coil. By mid-summer, high head pressure trips the unit offline. We clean coils, check the charge, and often add a service access route so future cleanings don’t require pulling the whole condenser.
- Capacitor and contactor failures after repeated 100°F-plus cycles. Builder-grade Ameristar condensers run hot here. Ontario’s summer afternoons push capacitors past their thermal limits. We stock replacement capacitors and contactors on our trucks so the fix doesn’t take a week.
- Evaporator coil leaks on older air handlers in 1960s-70s tract homes. Ontario has thousands of mid-century homes with original R-22-era or early R-410A Ameristar air handlers. Refrigerant loss from a rusted coil is common. We pressure-test, locate the leak, and give you a straight repair-versus-replace price before we touch a wrench.
- Condensate drain pan and line clogging during remodel season. Drywall dust and stucco debris from Ontario remodels settle into closet and garage-mounted Ameristar air handlers. A plugged condensate line backs water into the pan, then the ceiling. We re-route drains and build proper service access when we remodel kitchens around these units.
- Furnace limit switch trips from restricted airflow in older Ontario homes. Original ductwork in 1950s-70s tract houses was often undersized even when new. Paired with an Ameristar M801P furnace and decades of dust, the limit switch cycles repeatedly. We measure static pressure and correct the airflow, not just swap the switch.
Ameristar Service in Ontario: What Local Conditions Mean for Your Equipment
Any demolition or grading on an Ontario job, including a kitchen tear-out that dumps stucco and drywall dust, falls under South Coast AQMD Rule 403. The rule requires water suppression and debris containment even on small residential remodels. Contractors from Rancho Cucamonga or Ameristar repair in Chino sometimes skip this step because enforcement there is less visible. We don’t. It matters to Ameristar owners because that dust doesn’t just land on the ground. It gets pulled into return air ducts, settles on blower wheels, and packs evaporator coils in air handlers mounted inside the very walls and closets we’re opening up. On a mid-century tract home off Euclid Avenue near the 60, our crew opened a kitchen wall and found the original Ameristar air handler buried behind cabinetry, its drain pan rusted through and the coil caked with years of wind-driven dust. We re-routed the condensate line, cleaned and tested the coil, and rebuilt the closet with a proper service access panel so the system could be serviced without demoing the new cabinets. That’s the kind of thing you only learn by working in Ontario long enough to see what the dust actually does.
Ameristar Models & Products We Service in Ontario
Our crew works on Ameristar M4AC4 split-system air conditioners, M4HP4 and M4HP5 heat pumps, M4AH4 air handlers, and the 80% single-stage M801P and M4RL gas furnaces sold through builder and distributor channels. For compressors, coils, and control boards, we source OEM Ameristar parts because matching tolerances matters. For capacitors, contactors, and relays, we use aftermarket components that meet or exceed OEM spec, and we keep them stocked for fast Ontario turnaround. If your unit is past roughly 12 to 15 years and the coil or compressor has failed, we’ll price replacement alongside the repair so you can make the call with real numbers, not a sales pitch. Good work doesn’t need a sales pitch, it needs the right materials and someone who knows what they’re doing.
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AfterAmeristar Service Pricing in Ontario
Pricing depends on scope, system age, and whether we’re working around an existing Ameristar unit or replacing it during a larger remodel. The ranges below reflect typical Ontario projects we’ve priced recently. A free estimate includes a site walk, equipment condition check, and a written line-item quote so you know exactly what’s included before any work starts. Call (855) 600-3192 to schedule yours.
| Service | Typical Ontario Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario 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 – Ameristar Construction in Ontario
Yes. Rule 403 covers any activity that generates visible dust, including interior demolition, drywall removal, and stucco cutting on a residential remodel in Ontario. We stage water suppression and debris containment on every project we run here, which keeps your Ameristar air handler from ingesting a fine layer of gypsum and stucco dust while we work. Call (855) 600-3192 and we’ll walk you through what compliance looks like on your specific job.
It’s usually both. Ontario’s July afternoons push ambient temperatures past 100°F, and any restriction in the condenser coil, whether it’s dust from Santa Ana winds or cottonwood debris, drives head pressure up until the unit trips on its high-pressure switch. We test the capacitor and contactor first, then inspect and clean the coil, then check refrigerant charge. Most Ontario tripping calls we solve in one visit. Call (855) 600-3192 for a diagnostic that starts with the unit’s actual condition, not a brand assumption.
Yes, and we do it regularly in Ontario’s mid-century tract homes. The key is planning access before cabinetry goes in. We reposition the air handler if needed, re-route the condensate line, rebuild the closet with a service panel, and coordinate the drywall and cabinet sequence so the system can be serviced later without tearing out your new kitchen.
Most Ameristar builder-grade systems in Ontario last 12 to 15 years before a major component fails. Extreme summer heat cycles, Santa Ana wind dust, and hard water in condensate pans all shave life off equipment here. If your unit is in that range and the coil or compressor is failing, we’ll give you a replacement quote alongside the repair price so you can decide with real numbers.
Yes. That’s the whole point of working with one contractor. We run roofing, framing, drywall, cabinetry, and hardscaping under one contract, so a roof replacement on an Ontario home happens on schedule with the kitchen remodel below it, without you coordinating three separate crews. Call (855) 600-3192 for a free estimate on the full scope.
Service Areas Near Ontario
Our crews work across Ontario’s 91762, 91764, 91758, and 91798 ZIP codes and into the surrounding cities. If you’re nearby in Colton, Bloomington, Loma Linda, or Redlands, we can schedule the same full-scope Ontario service area work. We also run Ameristar service calls in Claremont and Montclair, where the housing stock and wind exposure differ enough that we adjust our dust-control and coil-cleaning approach accordingly.
Book Your Ameristar Service in Ontario Today
For full-scope Ontario remodeling with Ameristar in Upland and surrounding areas, equipment handled the way it should be, call (855) 600-3192. We’ll schedule a free estimate, check your system’s condition, and give you a line-item price. From the kitchen to the roofline, one contractor, every trade.
Written by Ruben Montoya, Owner at Stallion Contractors, serving Ontario since the company’s first Inland Empire project.