Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Ameristar Construction in Calabasas, CA | Mason Remodeling Co Thousand Oaks
We provide independent Ameristar service across Calabasas, from rooftop package units in The Oaks to split systems in Mulwood ranch homes. The one thing that makes our Ameristar work here different is that we’re not tied to any dealer. We diagnose what’s actually failing, quote the fix with a written price before work starts, and factor in Calabasas-specific conditions like wildfire ash and hillside drainage that most service manuals never mention. Call (805) 309-3386 for a free estimate.
Why Calabasas Residents Choose Us for Ameristar Service
Our crews know Ameristar equipment the way a good mechanic knows a specific engine family. We’ve pulled apart enough 80% AFUE Ameristar furnaces to recognize the exact heat exchanger seam that fails in attic installs, and we’ve rebuilt enough rooftop curbs to know when a unit’s mounting height, not its compressor, is the real problem. We’re an independent Ameristar sales & service provider, which means nobody at a dealership is telling us which parts to push. We call the fix that makes sense for your house and your budget.
Isaac Pruett, our owner, grew up in Los Angeles and learned the trade at LA Trade-Technical College before years of job-site work across the region. He built Mason Remodeling Co Thousand Oaks around a simple standard: tell the homeowner what’s wrong, what it costs, and how long it takes. As a Calabasas General Contractor, he applies that same standard here. Then do exactly that. In Calabasas, where hillside microclimates punish equipment faster than the flatlands of the San Fernando Valley, that directness matters more than a polished pitch.
We install genuine Ameristar OEM parts on units under five years old or still within warranty reach. For older out-of-warranty systems, we’ll often recommend proven aftermarket equivalents that exceed original factory specs, especially on heat exchangers and blower motors. You get a written line-item price before any work begins, and every repair is backed by our 365-Day Done Right Promise: if it fails within a year of completion, we return and make it right at no charge.
Styles & brands we work with
Common Ameristar Construction Problems We Solve in Calabasas
- Cracked heat exchanger seams on 80% AFUE Ameristar furnaces in Mulwood. Attic installs bake the heat chamber between cycles, and after a decade of Calabasas’s hot summers, the metal fatigues along the seams. We pressure-test and scope the exchanger, then show you the repair-versus-replace math in plain numbers before you decide.
- Condenser fin corrosion on rooftop Ameristar package units. Salt-laced Santa Ana winds and wildfire ash etch the aluminum fins, dropping SEER efficiency within five years. We clean, coat, and when the corrosion is deep, we quote a coil replacement with OEM or upgraded aftermarket parts.
- Drain pan overflow on Ameristar air handlers in hillside crawlspaces. Calabasas hillside lots often have drainage pitches tighter than code intended, and the secondary pan rusts through before anyone notices. We rebuild the drain path, replace the pan, and add a float switch so a repeat overflow cuts power instead of soaking your subfloor.
- Blower motor capacitor failure during summer heat waves. When Calabasas thermostats get pushed to 72°F in August, the capacitor takes the hit and trips breakers. It’s a common call we fix fast, but we also check the blower motor’s amp draw so the same failure doesn’t come back in six weeks.
- Rooftop curbs that trap superheated air around Ameristar package units. Low curbs reflect tile roof heat straight into the condenser, causing short-cycling and breaker trips. We rebuild curbs with fire-rated lumber, proper height, and louvered screening that passes Calabasas’s view requirements.
Ameristar Service in Calabasas: What Local Conditions Mean for Your Equipment
Calabasas Municipal Code Chapter 16.12 requires a View Preservation Analysis any time a rooftop mechanical replacement projects more than 12 inches above the roofline. That rule doesn’t exist next door in Hidden Hills, and it changes how we install Ameristar package units throughout the city. When a homeowner in Mountain View Estates or Calabasas Hills needs a new rooftop unit, we have to design the curb height, screening, and placement so the new equipment doesn’t block a neighbor’s mountain view. Last August, our tech arrived at a Mountain View Estates estate where an Ameristar 14 SEER package unit kept tripping its 40-amp breaker at 3 p.m. The original installer had set the unit on a curb only 9 inches tall, letting the condenser sit in a pool of superheated air reflecting off the tile roof. We rebuilt that curb to 14 inches using fire-rated lumber, replaced the burned contacts on the contactor, and added a louvered screen that cleared the view preservation check. The unit has held 74°F all summer since, and the breaker hasn’t tripped once. That’s the difference between a crew that reads Calabasas code and one that treats every rooftop the same.
This is the reality of equipment service in a hillside community with strict aesthetic and fire-safety regulations. It’s not enough to know Ameristar units. You have to know how Calabasas’s rules, wildfire exposure, and drainage patterns change how those units perform and fail.
Ameristar Models & Products We Service in Calabasas
We work on the full range of Ameristar residential equipment you’ll find across Calabasas: 14 SEER packaged heat pump units, often curb-mounted on hillside rooftops in The Oaks; 13 SEER split-system air conditioners with matching cased coils; 80% AFUE single-stage gas furnaces, common in older Mulwood ranch houses; and 95% AFUE two-stage gas furnaces, frequently spec’d in newer custom builds throughout the Calabasas service area. Our parts approach is simple: genuine Ameristar OEM components on newer units, upgraded aftermarket equivalents when they outperform original specs on older systems. We keep a rolling stock of common capacitors, contactors, relays, and drain components in our Thousand Oaks shop, which shortens turnaround for Calabasas calls.
See the difference
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AfterAmeristar Service Pricing in Calabasas
Here’s what Ameristar-related roof and Bathroom Remodeling in Calabasas and equipment work typically runs. These are real ranges based on the work we’ve done across the city, not vague ballparks.
| Service | Typical Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Tile Roof Repair | $600 – $2,500 |
| Metal Roof Installation | $15,000 – $40,000 |
What drives the final number on a Calabasas project is access. Hillside lots with tight curb approaches, steep roof pitches, and view preservation requirements add labor hours and engineering time. A free estimate from us includes a written line-by-line price, so you know exactly what you’re paying before any tool leaves the truck. Call (805) 309-3386 to schedule yours.
Serving Calabasas, CA - Our Local Coverage Area
We’re based in the Calabasas 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 Calabasas
Does Calabasas require anything special before you can replace my old Ameristar rooftop heater in The Oaks?
Yes. If the new unit projects more than 12 inches above the roofline, Calabasas Municipal Code Chapter 16.12 requires a View Preservation Analysis before the permit is approved. We handle that analysis, adjust curb height and screening to pass, and coordinate the permit as part of the installation. Call (805) 309-3386 and we’ll walk you through the timeline for your specific roof.
My Ameristar furnace in Mulwood is 11 years old and the blower motor screams on startup – is that worth fixing or replacing?
At 11 years old, the blower motor replacement is usually between $400 and $900 on an Ameristar 80% furnace, but if the heat exchanger is also showing fatigue, the combined repair bill can approach $2,500. For an 80% unit over 12 years old with a cracked exchanger, replacement with a 95% two-stage unit usually makes more financial sense, especially considering hillside removal and re-install labor is a fixed cost either way. We’ll show you both numbers side by side and let you decide. Call (805) 309-3386 for an exact quote on your furnace.
Why do our Ameristar air handlers in a hillside crawlspace keep overflowing the drain pan?
Hillside crawlspaces in Calabasas often have drainage pitches so tight that condensation backs up instead of flowing out, and the secondary pan rusts through before the primary overflows. We fix this by re-running the condensate line with proper fall, replacing the rusted pan, and adding a float switch that cuts power if a clog recurs. That prevents a $2,000 subfloor repair from a $20 drip. Call (805) 309-3386 for an inspection.
Will wildfire ash really damage my Ameristar rooftop condenser fins, and what can I do about it?
Yes. Ash is abrasive and slightly acidic, and when Santa Ana winds drive it across Calabasas rooftops, it etches the aluminum fins on Ameristar package units, cutting efficiency within a few seasons. We offer coil cleaning with fin straightening, then apply a protective coating that slows future corrosion. If the fins are already pitted beyond repair, we quote a coil replacement. Call (805) 309-3386 for a free condenser inspection.
Can you match the tile color when you replace the roof around an Ameristar curb on a Calabasas Hills home?
Yes. We work with local Calabasas roofing suppliers to match existing tile profiles and colors, including weathered and discontinued lines where possible. The goal is a curb replacement that looks like it was part of the original roof, not a patch. We’ll bring tile samples to your estimate so you can approve the match before work starts. Call (805) 309-3386 to schedule a roof assessment.
Service Areas Near Calabasas
We run Ameristar service and roof replacement calls throughout Calabasas and the surrounding foothills. Our crews work regularly in West Hills, Thousand Oaks, Oak Park, Malibu, and Topanga. Hillside lots, tile roofs, and wildfire code requirements follow the same patterns across these communities, so our trucks are stocked and our crew schedules accommodate the drive.
Book Your Ameristar Service in Calabasas Today
Tell me what you need done. We’ll tell you what it costs and how long it takes, then we’ll do exactly that. Call (805) 309-3386 to schedule your free Ameristar service estimate in Calabasas.
Written by Isaac Pruett, Owner at Mason Remodeling Co Thousand Oaks, serving Calabasas since 2004.
