Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Ameristar Construction in Los Altos, CA | Timberline Contractors
We provide Ameristar repair in Los Altos Hills and across Los Altos, from full kitchen and bath remodels to roof replacement and additions. The one thing that makes our Ameristar work different here is that we plan mechanical layouts, roof penetrations, and cabinet runs around Los Altos’s heritage-tree and floor-area rules from day one, because that’s what actually governs a job in this town. Nelson Fung has spent years working Ameristar systems into, and back out of, Los Altos’s tear-down-and-rebuild cycle. Call (866) 253-5808.
Why Los Altos Residents Choose Us for Ameristar Service
Los Altos is a low-density town of 1950s and 60s single-story ranches on generous lots, and most of the work we do here isn’t Ameristar repair in Stanford or nearby—it’s tear-down-and-rebuild, second-story additions, and ADUs. It’s tear-down-and-rebuild, second-story additions, and ADUs. That changes everything about how Ameristar equipment gets specified, moved, or replaced. We know which Ameristar M4 and M5 series gas furnaces were commonly pulled during remodel rough-ins in these older homes, and which V-Series split air conditioners and heat pumps are still paired with original ranch ductwork that was never sized for today’s loads. Our teams also handle the Ameristar packaged and downflow units that show up in older garage and ADU conversions throughout 94022, 94023, and 94024.
We’re an independent Ameristar construction service provider, not manufacturer-affiliated or authorized. That matters for a simple reason: our loyalty is to getting the scope, permits, and detailing right for your house, not to a manufacturer program. Nelson Fung grew up in LA’s Chinatown and learned the trade at Los Angeles Trade-Technical College before spending years on remodels and commercial builds, and the habit he brought to every job is that you do the detail right or you explain yourself twice. We bring that to every Ameristar job in Los Altos.
Styles & brands we work with
Common Ameristar Construction Problems We Solve in Los Altos
- Ameristar condenser and line-set failures on aging slab patios. Los Altos ranches built in the 1950s and 60s often have Ameristar condensers set directly on original slab patios with no pad isolation. Years of summer heat cycles and vibration crack the pad and loosen service valves. We re-pad and re-flash at equipment replacement rather than re-torquing a failing valve.
- Thermofoil cabinet delamination at sinks and dishwasher edges. Ameristar thermofoil-faced cabinet boxes and MDF panels swell and peel in many Los Altos kitchens because the remodel-era installs were never sealed against the long dry summer followed by sudden rain-season humidity swings. We see this constantly in 94022 kitchens.
- Hall-closet furnace clearance and venting failures. Older Ameristar furnace and air handler installs in the tiny hall closets of single-story ranches often fail on clearance and venting. When we open the closet during a remodel we find single-wall flue connectors and insufficient return air, which has to be corrected before a new unit goes in.
- Corroded packaged units on garage and ADU conversions. Original Ameristar rooftop and garage-mounted packaged units on ADU build-outs corrode at the curb and panel seams from deck splash and roof drainage that wasn’t re-detailed when the roof was redone. We re-flash and re-curb as part of the replacement.
- Ductwork and air distribution on second-story additions. Adding a second story over a 1960s ranch changes the entire duct system. Ameristar condensing units left in place are often undersized for the new conditioned space, and the existing return-air path can’t handle the new volume. We re-scope the whole system, not just the box.
Ameristar Service in Los Altos: What Local Conditions Mean for Your Equipment
Los Altos enforces lot-coverage, floor-area-ratio, and heritage-tree protection rules that most neighboring cities don’t. What that means for an Ameristar owner is specific: moving an Ameristar condenser or altering a roof penetration on a rebuild often has to be drawn around protected coast live oak root zones and FAR limits. It’s a design-review item, not just a field call. On a tear-down-and-rebuild off a large-lot street near the Los Altos downtown triangle, we set a new Ameristar split system for a second-story addition and had to route the line set and condenser pad around a protected coast live oak’s root zone flagged in the arborist report. When the sheetrock went up we found the old ranch’s closet air handler had been hacked in with no return-air path, so we re-framed the closet, re-flashed the roof penetration, and re-padded the Ameristar condenser clear of the tree protection fence before final inspection. In Los Altos, the mechanical layout and the tree report are the same conversation. If you don’t plan them together, you’ll redo one of them after inspection. We plan them together.
Ameristar Models & Products We Service in Los Altos
We service the Ameristar M4 and M5 series gas furnaces, V-Series residential split air conditioners and heat pumps, condensing units paired with older ranch-home ductwork, and packaged and downflow units found in garage and ADU conversions. For ignition, control, and safety-critical components we use OEM Ameristar parts. For consumables like filters and gaskets we use quality aftermarket. But we’ll also tell you honestly when a 20-year-old Ameristar unit headed into a remodel should be replaced rather than chased with a compressor or heat exchanger repair. Home Remodeling – Los Altos, bathroom remodeling, and roof replacement and installation are the three areas where we most often integrate Ameristar scope with the rest of the project.
See the difference
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AfterAmeristar Service Pricing in Los Altos
The table below reflects what we see across Los Altos for Ameristar-related construction scope. These are project-level ranges, not line-item quotes, because a Los Altos remodel’s final number depends on heritage-tree constraints, FAR limits, and what’s behind the sheetrock.
| Project | Typical Los Altos Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
A free estimate from us includes a walkthrough of your existing Ameristar equipment, the duct path, the roof penetrations, and any tree or FAR restrictions we can see. Call (866) 253-5808 to schedule one.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in the Los Altos 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 Los Altos
Yes, it directly affects it. Los Altos protects mature coast live oaks and redwoods, and any encroachment on the root zone of a heritage tree can trigger a city permit and arborist review. That means an Ameristar condenser pad, line-set trench, or roof penetration near a protected tree has to be drawn around the tree protection zone, not just placed where it’s convenient. We handle that in the design phase. Call (866) 253-5808 for an exact read on your lot.
Most existing Ameristar systems on a 1960s ranch were sized for the original single-story footprint and duct layout. When you add a second story, the system usually can’t handle the new load and the return-air path often can’t either. We’ll give you an honest answer after looking at the unit’s age, condition, and the new Manual J load calc. If replacement makes more sense than chasing it, we’ll say so.
It depends on whether the thermofoil faces are delaminating at the sink and dishwasher edges, which is common in Los Altos kitchens because of the dry-summer, wet-winter humidity swings. If the boxes are sound and only the faces are tired, refacing can work. If the MDF has swelled, replacement is the better path. We’ll open a few doors and tell you what’s worth saving.
You’ll typically need re-flashing at the curb, re-sealing at the roof penetration, and often re-routing of drainage if the old unit was catching deck splash or roof runoff. On a Los Altos re-roof tied to a remodel, we coordinate the roof work and the Ameristar equipment replacement under one contract so the detailing matches. Call (866) 253-5808 and we’ll walk the roof with you.
Yes. In Los Altos, any HVAC equipment change, roof alteration, or addition tied to a remodel requires city permits, and changes near heritage trees or that affect FAR or lot coverage go through design review. We pull the permits and handle the inspections so you’re not redoing work after the fact.
Service Areas Near Los Altos
We provide Ameristar service in Los Altos and nearby areas including Chinatown, San Francisco, Mission District, Buena Park, Hesperia, and Cypress. Timberline Contractors covers the full Los Altos service area with the same independent, OEM-parts-first approach. See our Ameristar sales & service page for brand depth, our Los Altos service area page for local details, and our Ameristar service in Mountain View and Ameristar service in Loyola pages when your job crosses city lines.
Book Your Ameristar Service in Los Altos Today
We’re a single-source General Contractor in Los Altos who knows Ameristar equipment and the city’s rules, so you don’t have to coordinate five trades and a tree report on your own. Call (866) 253-5808 to schedule your free estimate.
Written by Nelson Fung, Owner & General Contractor at Timberline Contractors, serving Los Altos with independent Ameristar service.