Local company.
Based in Santa Clara, serving Los Altos daily.

HVAC service in Los Altos
EVS Mechanical provides full HVAC services to Los Altos homeowners and businesses: furnace installation, AC installation, heat pump installation, mini split installation, duct repair, ductwork installation, HVAC repair, preventive maintenance, and commercial HVAC.
HVAC in Los Altos, at a glance
Los Altos HVAC services — EVS Mechanical provides furnace installation, AC installation, heat pump installation, mini split installation, duct repair, and HVAC repair in Los Altos, CA. Owner-operated and multi-brand — not locked to one manufacturer. Licensed (CA #1089826), no call centers, live response from the team that does the work. Final quote is the price you pay. Call (408) 300-8254 for a free estimate.
HVAC services
Call-back time
58 reviews
For your Los Altos home
Compare installation, repair, ductwork, maintenance, and commercial options — and find the right fit for your Los Altos home.

Selected service
Furnace Installation
Gas furnace replacement and new installation. Carrier, Bryant, Goodman, Daikin, Lennox. Manual J load calculation. Permits handled.
Gas furnace replacement and new installation. Carrier, Bryant, Goodman, Daikin, Lennox. Manual J load calculation. Permits handled.
Central air conditioning installation and replacement. Carrier, Bryant, Daikin, Lennox, Goodman.
Ducted and ductless heat pumps. Carrier, Mitsubishi, Daikin, Bosch, Lennox.
Single-zone and multi-zone ductless systems. Carrier, Mitsubishi, Fujitsu, Daikin.
Leak sealing, disconnected joint repair, airflow restoration.
New duct systems for additions, new construction, and HVAC replacement.
Emergency and same-day repair for all brands and system types.
Annual and bi-annual maintenance plans. Priority scheduling.
Light commercial installation, repair, and maintenance.
What's different about an Los Altos install
You talk to the owner. The owner runs your install — no subcontractors, no finger-pointing.
Based in Santa Clara, serving Los Altos daily.
EVS has experience with Eichler home retrofits — mini splits, ductless heat pumps, and systems designed for homes without conventional ductwork.
Hillside installations, custom estate systems, and crawlspace access.
Proper sizing for both valley and hillside microclimates.
EVS manages permits with both City of Los Altos and Santa Clara County.
Euler Vargas oversees every install — you work with the owner, not a sales rep or a call center. The team that quotes the job is the team that does the work.
We carry Carrier, Bryant, Goodman, Daikin, Lennox, Mitsubishi, Bosch, and Fujitsu — and we're not factory-authorized to push any single one. You get the unit that fits your home and budget, not the one a dealer is incentivized to sell.
Your equipment warranty stays the manufacturer's warranty — it doesn't disappear if you skip a recurring maintenance contract. We offer maintenance because it extends the life of your system, not as the price of keeping your coverage.
No add-ons, no upselling on equipment you don't need. We're not a sales company — we're the ones who actually do the work.
Full responsibility from design to installation, including the difficult ones other companies pass on. We support on-budget work for churches, veterans' facilities, and charities.
Based in Santa Clara, serving Los Altos daily.
EVS has experience with Eichler home retrofits — mini splits, ductless heat pumps, and systems designed for homes without conventional ductwork.
Hillside installations, custom estate systems, and crawlspace access.
Proper sizing for both valley and hillside microclimates.
EVS manages permits with both City of Los Altos and Santa Clara County.
Euler Vargas oversees every install — you work with the owner, not a sales rep or a call center. The team that quotes the job is the team that does the work.
We carry Carrier, Bryant, Goodman, Daikin, Lennox, Mitsubishi, Bosch, and Fujitsu — and we're not factory-authorized to push any single one. You get the unit that fits your home and budget, not the one a dealer is incentivized to sell.
Your equipment warranty stays the manufacturer's warranty — it doesn't disappear if you skip a recurring maintenance contract. We offer maintenance because it extends the life of your system, not as the price of keeping your coverage.
No add-ons, no upselling on equipment you don't need. We're not a sales company — we're the ones who actually do the work.
Full responsibility from design to installation, including the difficult ones other companies pass on. We support on-budget work for churches, veterans' facilities, and charities.
Why Los Altos is different
Housing stock in Los Altos
Los Altos's stock is dominated by mid-century California Ranch, with a small set of late Eichler tracts and hillside custom estates. The stock drives the system:
No ductwork, radiant-slab heat, post-and-beam, typically 100A panels — a ductless mini-split or ductless heat pump is the retrofit. The larger late-Eichler footprints often want multi-zone (4+ heads).
Crawlspace and attic present, so a ducted heat-pump conversion is feasible, with typically 100A panels.
Hillside siting, ridgeline protection, and wildfire considerations; HVAC is site-specific.
What Los Altos homeowners ask
AC repair in Los Altos usually starts with a diagnostic visit, then the cost depends on the part — a capacitor or contactor is a smaller, straightforward fix, a compressor or coil is a larger one. We give you a clear, written quote upfront before any work starts, so there are no surprises. If your AC is older and the repair is approaching replacement cost, we'll say so straight rather than patch a unit that should be swapped — and most Los Altos AC repairs are completed same-day.
A ducted heat pump (1.5–3 tons) for an average Los Altos home starts at $5,000; ductless mini-split systems are priced separately by zone, starting around $1,900 per zone. The final number depends on whether it's ducted or ductless, the brand (Carrier, Mitsubishi, Daikin, Bosch, Lennox), and whether we're converting a gas furnace to a full electric heat pump — an electrical panel upgrade or new ductwork adds to the total, a direct one-to-one swap keeps it down. We run a Manual J load calculation so the system is sized to your home, and the written quote is the price you pay — no upselling on things you don't need.
Ductless mini split installation in Los Altos starts at $1,900 for a single-zone replacement (one-to-one) or $2,800 for a new single-zone install; multi-zone systems (2–3 heads) start at $3,900 for a replacement or $4,800 for new install. The final number depends on the number of zones and the brand (Carrier, Mitsubishi, Daikin, Fujitsu). Mini splits are popular in Los Altos for home additions, converted garages, and rooms that never had ductwork. The written quote is the price you pay — no upselling.
Yes — we run same-day and after-hours emergency AC repair across Los Altos and Los Altos Hills. A real customer called us at 10am, we were at his house by 11am, and the failed system was installed by 4pm. Call (408) 300-8254 if your AC is out in Los Altos or the Hills.
Yes. Many older Los Altos Hills homes still have original floor furnaces that are inefficient and a carbon-monoxide risk — we repair them when parts are available, and more often replace them with a modern high-efficiency furnace or a ductless heat pump. We'll give you an honest read on repair vs. replacement with a clear quote for each.
Yes — downtown Los Altos, Loyola, the country-club area, and Los Altos Hills. The two areas have different permit authorities: the City of Los Altos Building Division for Los Altos, and Santa Clara County for Los Altos Hills. EVS handles whichever applies to your property.
AC maintenance in Los Altos is a seasonal tune-up — cleaning the coils and condensate line, checking refrigerant charge, testing electrical connections, and verifying airflow. A maintenance visit keeps your system efficient and catches small failures before they become emergency repairs. We offer annual and bi-annual maintenance plans with priority scheduling.
Yes. Los Altos homes are served by PG&E, and heat pump and high-efficiency HVAC upgrades can qualify for TECH Clean California incentives. We walk through exactly what applies to your home during the estimate.
Contact
Owner-run. No subcontractors. Free estimate, 1–2 hr callback.
Need help right away? Call us directly during business hours.
Repair requests are routed for same-business-day callbacks. Estimate and maintenance requests are reviewed within 1 business day.