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Ameristar Construction in Canoga Park, CA | Elmstead Remodeling Santa Clarita
If you own a home in Canoga Park with Ameristar equipment, you know the challenge: finding one crew who understands both the HVAC unit and the house it sits on. We’re Elmstead Remodeling Santa Clarita, and we provide independent Ameristar service across Canoga Park, not manufacturer-authorized but fully cross-trained on Ameristar package units, split systems, air handlers, and heat pumps. The difference here is structural: Canoga Park’s 1950s-60s ranches and their mandatory seismic retrofits mean your Ameristar unit’s fate is tied to your roof sheathing, your shear walls, and your foundation. We handle all of it. Call (661) 542-4056 for a free estimate.
For broader context, see our Ameristar sales & service overview page.
Why Canoga Park Residents Choose Us for Ameristar Service

We’ve worked on Ameristar M4PG package units mounted over kitchens on Gault Street, M4AC condensers next to converted garages on Saticoy, and M4AH air handlers tucked into hall closets in 1963 ranches across the neighborhood. Graham Stein, our owner, grew up in Los Angeles and trained at Los Angeles Trade-Technical College before spending two decades swinging a hammer across Southern California. He still walks every Canoga Park job himself before the crew unloads, so the written price reflects what’s actually there: the rotted curb, the undersized return, the non-permitted flex duct splice hidden behind drywall. We write the price before work starts, and it doesn’t change after the crew arrives.
We serve the entire Canoga Park service area, from the ranch blocks west of Topanga Canyon Boulevard to the split-levels east of DeSoto.
Styles & brands we work with







Common Ameristar Construction Problems We Solve in Canoga Park
- Evaporator coil pinhole leaks from alkaline soil dust. Canoga Park sits in the western San Fernando Valley, where summer winds carry fine, dry soil that infiltrates return air during any construction. On M4AC split systems, that dust accumulates on copper coils and accelerates formicary corrosion. We’re seeing pinhole leaks on units here that would run clean for years in coastal neighborhoods.
- Compressor contactor chatter from remodeling dust. Whole-home remodels in Canoga Park kick up weeks of drywall dust and stucco sanding. That dust coats Ameristar contactors, causing chatter and relay failure. We install sealed contactors and hard-start kits on exposed condensing units.
- Capacitor swelling from sustained valley heat. Ameristar M4PG package units on flat, sun-baked roofs in Canoga Park see 100°F-plus ambient temperatures for weeks every summer. The capacitors swell, the compressor overheats, and the unit hard-starts or won’t start at all. We keep OEM-rated 45/5 dual capacitors on the truck.
- Ductwork separation in post-1950s additions. Canoga Park has hundreds of homes where original sheet metal plenums were spliced with flex duct during non-permitted garage conversions or bonus-room additions from the 1970s-80s. The static pressure spikes stress Ameristar blower motors until they fail. We repair the duct transition, not just the blower.
- Rooftop curb rot on flat tar-and-gravel roofs. The flat-roof ranches of Canoga Park hold moisture against Ameristar unit curbs until the wood rots through. The unit shifts, the supply plenum separates, and the condenser fan motor draws excessive amps. We rebuild the curb with welded steel and re-flash to current code.
Ameristar Service in Canoga Park: What Local Conditions Mean for Your Equipment
Here’s what you need to know that would not be true in Chatsworth or Santa Clarita: Canoga Park’s Los Angeles Municipal Code 91.8203 mandates seismic retrofitting for pre-1975 wood-frame soft-story buildings. That ordinance hits this neighborhood’s post-war housing stock hard because Canoga Park has thousands of 1950s and early-1960s single-story ranches built directly over unbraced cripple walls with skip sheathing. When your contractor re-sheaths the roof for a retrofit, any Ameristar rooftop package unit or exhaust fan that came off must be re-anchored to new plywood and hold-down strapping, not the original skip sheathing gap. If someone bolts your M4PG unit back onto old skip boards without reframing the curb area, the unit’s weight stresses the same weak roof plane the retrofits are meant to fix. That’s why our crews replace the curbs and straps at the same time we re-sheath. We don’t separate the HVAC work from the structural work because in Canoga Park, they’re the same job.
Ameristar Models & Products We Service in Canoga Park
We service the full Ameristar residential line: M4PG Series packaged gas/electric units, M4AC Series split-system air conditioners, M4AH Series air handlers, and M4HP Series heat pumps. For repairs, we stock genuine Ameristar OEM capacitors, contactors, and control boards so the electrical specs match what the factory intended. When a unit is out of warranty and an OEM evaporator coil or condenser fan motor has a lead time over ten days, we use aftermarket parts from suppliers we’ve vetted for tolerances. We only recommend replacement when the compressor or heat exchanger fails on a unit over twelve years old. A pinhole coil leak is a repair; a dead compressor on a thirteen-year-old M4AC is a conversation about replacement.
See the difference
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AfterAmeristar Service Pricing in Canoga Park

What you’ll pay depends on the scope, and we put the numbers in writing before any work begins. Here are the ranges for the construction, roofing, and our General Contractor in Canoga Park work we most often pair with Ameristar service:
| Service | Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| Roof Replacement | $8,000 – $20,000 |
| Countertop Installation | $2,000 – $6,500 |
| Walk-In Shower Installation | $4,500 – $12,000 |
Your free estimate includes a walk-through of the existing Ameristar equipment, a written line-item quote, and a conversation about what actually needs doing versus what can wait. Call (661) 542-4056 and we’ll schedule it.
Serving Canoga Park, CA - Our Local Coverage Area
We’re based in the Canoga Park 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 Canoga Park
Can you move my Ameristar rooftop package unit when adding a second story to my 1950s Canoga Park ranch?
Yes, and this is exactly the kind of job we handle regularly in Canoga Park. The unit comes off, gets set on new plywood decking with a rebuilt steel curb, and gets reconnected to a supply plenum rerouted around any new hold-down brackets. The county requires seismic strapping at the roof level, and we fold the Ameristar reinstallation into that same permit. Call (661) 542-4056 for a walk-through and a written quote.
My Ameristar air handler is inside a non-permitted converted garage in Canoga Park. Is it okay to leave it there during a full kitchen remodel?
You can leave it for a kitchen remodel, but you should know the risks. Canoga Park has a high number of 1970s-80s garage conversions where undersized footings and non-compliant framing were never corrected. If your air handler is in that space, the equipment itself may be fine, but the structure around it may not pass an inspection if a permit inspector opens the wall. Our recommendation: leave the unit alone for the kitchen work, but have us look at the garage structure before you decide on any future permitted construction in that space. We’ll tell you honestly if it needs fixing. Call (661) 542-4056 to have us take a look.
Why does my Ameristar condenser unit short-cycle on Canoga Park summer afternoons even when the filter is clean?
On Canoga Park summer afternoons, it’s usually a swollen run capacitor or a contactor that’s been compromised by dust. Our crew recently pulled an Ameristar M4PG15 package unit from the flat tar-and-gravel roof of a 1961 ranch on Gault Street after a full re-shingle. The condenser fan motor was drawing 4.8 amps with a swollen capacitor. Capacitors can’t shed heat fast enough when rooftop temperatures sit above 120°F, and once the capacitor fails, the compressor hard-starts or the unit short-cycles. A new OEM capacitor and a sealed contactor usually solve it same day. Call (661) 542-4056 and we’ll diagnose it.
Does your crew need to protect my Ameristar package unit during a full roof tear-off in Canoga Park?
Yes, and if a roofer doesn’t protect it, that’s a problem. A roof tear-off on a Canoga Park flat roof sends gravel, tar, and sheetrock dust into the condenser coil and the electrical compartment. We cover the unit during the tear-off, vacuum the coil afterward, and replace filters and contactors if dust got where it shouldn’t. The unit should not be running while debris is falling. Call (661) 542-4056 to schedule the protection and the post-roof service together.
Can you tie my new ADU’s Ameristar mini-split into the main house’s 1950s-era 100-amp panel in Canoga Park?
Usually yes, but it depends on the existing load and the panel’s condition. A 100-amp panel from the 1950s often has no breaker space and may have cloth-wrapped wiring that needs replacement first. We’ll assess the actual load demand, not just the label. If a panel upgrade is required, we include it as a line item in the written estimate before any work begins. Call (661) 542-4056 and we’ll come out and tell you what’s needed.
Service Areas Near Canoga Park
We serve Canoga Park plus the surrounding neighborhoods and cities: Ameristar service in Santa Clarita, Ameristar service in Chatsworth, Granada Hills, Sylmar, and Panorama City. If you’re just outside these areas, call (661) 542-4056 and we’ll let you know if we can get to you.
Book Your Ameristar Service in Canoga Park Today
Call (661) 542-4056 to schedule a free, written estimate for Ameristar service or any remodel, roof, or addition work at your Canoga Park home. A live person answers, 24/7.
Written by Graham Stein, Owner at Elmstead Remodeling Santa Clarita, serving Canoga Park and the San Fernando Valley. The price on the paper is the price on the invoice – we put that in writing before the first board goes down.












