Ranch-home ducted replacement
Assess existing ducts, returns, indoor space, and circuits
Actual EVS work
Sunnyvale · from our Bassett St shop
Heat Pump Installation in Sunnyvale, CA — Ranch Homes and Radiant Conversions
Keep usable ducts, add cooling around working radiant floors, or plan a full electric conversion. Your free estimate checks the house before the equipment choice, with a fixed written quote and permits handled.
CA Lic #1089826Free in-home estimateFixed written quoteDucted and ductless options
Heat pump installation in Sunnyvale, CA can mean a ducted replacement in a ranch home or a ductless retrofit around an Eichler's radiant slab; EVS Mechanical checks the layout, electrical capacity, and equipment routes before quoting. For a free estimate and fixed written quote, call EVS at (408) 300-8254.
What does heat pump installation cost in Sunnyvale?
Heat pump installation cost in Sunnyvale depends on the starting system and the route to the rooms you want served. Ducted versus ductless equipment, electrical panel capacity, line-set routing, an Eichler radiant conversion, and permits all affect the scope. EVS provides a free estimate and a fixed written quote before work starts. A Ponderosa ranch with usable ducts may support a ducted replacement. A Fairbrae-area Eichler with radiant floors needs a new air delivery plan, often using ductless heads. Even two houses with the same floor area can need different equipment locations, circuits, drain routes, and finish work. A useful quote identifies those tasks rather than pricing the square footage alone. Be clear about whether you want heating and cooling everywhere or cooling added alongside existing radiant heat. Ask whether a quoted electrical upgrade follows an actual capacity assessment. Ask the same question about replacing ducts. With the work set out separately, you can choose between options and compare proposals for the same result. Call (408) 300-8254 to arrange the site visit.
When to call about yours:
- Your ranch home's furnace and AC are ready for a replacement assessment
- You want cooling in a Fairbrae-area radiant home
- You are deciding whether to retain working slab heat
- A remodel or addition needs its own heating and cooling plan
Who this is for: Sunnyvale homeowners comparing a ducted replacement with ductless room control or a radiant-home conversion.
Heating and cooling in Sunnyvale homes
Fairbrae-area Eichlers: choose the role of the radiant floors
Sunnyvale's Eichler homes near Fairbrae heat with hydronic radiant slabs and no original forced-air ducts. If the floors still heat well, adding cooling does not automatically mean removing that heat source. A ductless heat pump can be assessed as an addition, or as a system intended to take over heating too. Those are different design goals. Tell the estimator which rooms need cooling, whether bedroom doors stay closed, and what you want to do on cold mornings. Ask the quote to state which spaces the new system serves. Keeping the radiant floors is a deliberate choice to include in the plan, not something to decide after the heads are mounted.
Flat roofs and atriums: draw the line-set route
The challenge in an Eichler is often where the equipment goes. Exposed ceilings, low roof space, and atrium layouts limit routes that might be easy in a conventional attic. A ductless system avoids a full duct network, but it still needs refrigerant lines, control wiring, drainage, and access for service. Walk the proposed route before approving it. Ask where piping is visible and how each indoor unit drains. Sunnyvale's Eichler homes carry design considerations, so any property-specific exterior review or association requirements need checking before the outdoor location is final. Equipment placement should work for the house and the people maintaining it.
Ponderosa, Birdland, and Cherry Chase: use ducts only if they suit the job
These ranch neighborhoods often have older duct systems. Registers in every room can make a ducted heat pump appealing. Yet a new air handler connected to a disconnected branch or a poor return path will inherit that problem. Describe the room that is always warm in summer or cold in winter during the estimate. The proposal should show whether the ducts stay, need targeted repairs, or need a wider redesign. Ask how the load calculation accounts for remodeled rooms, changed windows, and insulation. The goal is a system that reaches the current house, including spaces altered since the original furnace went in.
Heritage District homes and newer infill: inspect the actual layout
Sunnyvale's housing mix also includes older homes near the Heritage District and newer infill. A smaller house may have limited indoor equipment space; a townhome may have access or outdoor-placement constraints. Neither a recent build nor an older address tells you the complete installation scope.
SVCE and PG&E: confirm the utility before discussing programs
Sunnyvale's utility context includes Silicon Valley Clean Energy, commonly called SVCE, and PG&E. That differs from Silicon Valley Power in neighboring Santa Clara. Bring your utility bill to the estimate so the project uses the address's actual service details. Programs to ask about include SVCE, PG&E, TECH Clean California, and BayREN. Current terms, equipment requirements, and funding need checking; a program name is not an eligibility decision. Keep any possible incentive separate from the fixed project quote and ask what documents are needed before work begins. Do not assume a neighboring city's program applies to your address.
What you get from an EVS install
A choice about the heat you keep.
Your estimate can compare a full conversion with adding cooling alongside working radiant floors. The written scope states the role of the new equipment so the result matches your plan.
Routes explained before work.
Indoor head positions, outdoor placement, piping, and drainage are part of the installation decision. You can review visible work before approving the equipment and layout.
Measured sizing.
A load calculation considers the house you have now. Original tract equipment and a listing's square footage do not account for every remodel, window change, or room comfort problem.
A local shop for follow-up.
EVS Mechanical works from Bassett St in Santa Clara and serves Sunnyvale. Your written quote and model information give future service a record of the installed system.
From first call to finished job
Tell us about the house and the rooms
Call (408) 300-8254 with your address, heating type, and cooling goals. Mention radiant floors, an existing duct system, or any prior heat pump. Describe where temperatures are uneven and when that happens. If the equipment has failed, explain the symptom so you can discuss diagnosis as well as replacement.
Check the building and the electrical supply
The free estimate includes a load calculation and review of accessible ducts, equipment space, panel capacity, and outdoor placement. In a radiant home, the visit also explores head locations and line-set routes. Have association information or design requirements available so those constraints can be considered during planning.
Review the written options
Compare ducted and ductless scopes where both are practical. Check the indoor and outdoor models, rooms served, circuits, duct work, piping, drains, permits, removal, and finish work. Ask what is excluded or needs another trade. Your approval should follow a fixed written quote for a clear layout and scope.
Coordinate the installation and permit
EVS handles the installation permit process and inspection scheduling. The work follows the approved plan rather than choosing equipment routes on the day. Confirm timing based on the electrical scope, access, and any property-specific coordination.
Learn the controls and maintenance points
Heating and cooling both need testing. Your walk-through covers room controls, filters, and access for maintenance. If radiant heat remains, discuss how you intend to use the two systems.
Our Work
Real installs — our crew on every job
TOSOT heat pump outdoor unit
Two TOSOT heat pump units installed on a flat roof
New TOSOT heat pump installation on a flat roof
TOSOT inverter heat pump dual-fan condenser
TOSOT heat pump with EnergyGuide rating, rooftop install
TOSOT condenser unit secured on a flat roof
Completed rooftop heat pump installation, wide view
Pricing
Typical ranges for planning
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Rebates: Ask about SVCE, PG&E, TECH Clean California, and BayREN. Program terms need checking for your equipment and address; eligibility and funding are not promised.
Customer reviews
5.0
62 Google reviews
What EVS customers say
Real Google reviews from EVS jobs across the Bay Area.
“EVS Mechanical made what could have been a stressful process incredibly smooth. They diagnosed and repaired our HVAC system quickly and got everything running again. They didn't just do the work — they made sure we understood what was happening and why. Honest pricing. They didn't try to upsell us on things we didn't need. Really appreciated that they were on time and ready to work. If you need HVAC work done right, call EVS Mechanical. You won't be disappointed.”
MCVerified
Michael Cheung
HVAC repair · Bay Area
“The EVS Mechanical team were great! The EVS team showed up on time and completed the heat pump installation in one day as promised. Axel stayed on top of the whole process from quote to final inspection and communication was awesome. EVS made the whole process seamless. The pricing was more than fair for the quality of work we received. Every person on the crew was courteous and professional. When the installation was finished I couldn't tell they had been in the house. Thanks to EVS Mechanical we have heating and air conditioning again making for a comfortable house. I strongly recommend EVS Mechanical for all your HVAC needs.”
SCVerified
Scott Clark
Heat pump installation, one day · Bay Area
“Really impressed with EVS Mechanical. They earned every one of these five stars. The heat pump they installed has been incredibly efficient — our energy bills have actually dropped. Punctuality was great — they showed up exactly when they said they would. Appreciated how careful they were with our home during the installation. Would absolutely recommend EVS to anyone in the Bay Area. Thank you, EVS Mechanical, for the outstanding work!”
NVerified
Nate
Heat pump installation · Bay Area
Frequently Asked Questions
EVS Mechanical installs ducted and ductless heat pumps in Sunnyvale from its Santa Clara shop. Call (408) 300-8254 for a free estimate. The site visit checks your existing heating, rooms, ducts if present, electrical supply, and equipment placement. You receive a fixed written quote before approving the work.
That is a path to assess during the estimate. Ductless equipment can add cooling without building a full forced-air duct network. The plan needs to identify rooms served, head locations, drainage, and outdoor placement. State whether you also want the heat pump to supply heat so sizing and controls follow that goal.
Usable ducts can make it a good option, but the system needs checking. Poor airflow, leaky branches, and return restrictions can limit comfort even with new equipment. Ask how the proposed installation deals with those issues. Ductless options may make sense for an addition or a room with a different use pattern.
The estimate needs an electrical capacity assessment before answering. The selected equipment and existing household loads matter alongside the panel itself. Ask the written quote to identify the work and explain why it is required. An older house does not automatically mean a panel replacement, and an empty breaker space does not settle capacity.
Yes. Start by explaining why you want replacement, including breakdowns, uneven rooms, or equipment noise. The estimate checks the proposed system against the existing indoor unit, ducts, circuits, and controls. If the fault is unclear, a diagnostic visit can help you decide between HVAC repair and replacement before choosing new equipment.
Not necessarily. A weak duct branch, limited return airflow, or a room with different heat loss needs assessment. Explain the pattern during the site visit and ask how the proposed work addresses it. The load calculation and distribution plan should support the equipment choice, rather than increasing capacity to cover an unexplained problem.
Ask about SVCE, PG&E, TECH Clean California, and BayREN, then check current terms for your address and equipment. Availability and required documents can change. EVS can discuss that checklist during the estimate, but no incentive is promised. Compare the actual installation scopes before counting possible program support in your decision.
Service Areas
heat pump installation across the Bay Area — pick your city:
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