Ducted replacement
Check usable ducts, return airflow, and electrical supply

Santa Clara · from our Bassett St shop
Replace gas heating, add cooling to a radiant home, or replace an aging heat pump. Get a free estimate that checks your ducts, panel, and equipment placement, with permits in the written scope.
Heat pump installation in Santa Clara, CA starts with the home's ducts, electrical capacity, and room layout; EVS Mechanical quotes ducted replacements and ductless conversions from its Bassett St shop. Get a free estimate and a fixed written quote before work begins: call EVS at (408) 300-8254.
Heat pump installation cost in Santa Clara depends on whether your home already has usable ducts, how much electrical capacity is available, and where the indoor and outdoor equipment can go. EVS provides a free estimate and a fixed written quote for the measured scope. Equipment, electrical work, line-set routing, permits, and removal belong in that quote before you approve the job. A ducted replacement connects an indoor air handler to a home's air distribution system. A ductless job needs a plan for each indoor head and the piping back to the outdoor unit. Converting an Eichler's radiant-slab heating adds a different decision: keep the working slab heat and add cooling, or design the heat pump to cover heating too. Each choice changes the work. An older panel needs an assessment, not an automatic upgrade added to every bid. The same goes for ducts. A site visit should establish what can stay, what needs repair, and what needs replacement. Ask for each part separately so you can compare the same scope across estimates. Call (408) 300-8254 to arrange that visit.
Who this is for: Santa Clara homeowners comparing ducted replacement, ductless installation, and radiant-home conversions.
Santa Clara's Briarwood, Westwood Oaks, and Maywood/Fairmede ranch homes give a ducted heat pump a possible starting point: existing supply and return ducts. That does not tell you their condition. A hot bedroom, weak register, or noisy return may point to air distribution problems that new equipment alone will leave in place. During the estimate, have the accessible ducts and return path checked alongside equipment sizing. Keep duct repair separate from a complete ductwork installation in the scope. You can then see whether the proposal repairs a specific fault or replaces a system that no longer suits the house. Attic or crawlspace access also affects how the work can proceed.
Santa Clara's Pomeroy Green and Pomeroy West Eichler developments are radiant-slab homes without original forced-air ducts. A furnace-to-heat-pump swap is the wrong starting assumption there. The useful question is how to add air conditioning and whether the new equipment will also take over heating. Ductless equipment can serve separate rooms or wings without building a full duct system. A ducted option needs a real route for ducts and an indoor air handler. Bring your priorities to the estimate: preserving ceilings, limiting visible indoor equipment, retaining working radiant heat, or replacing the heating source. Exterior placement and any association or design review need checking before a layout becomes final.
Older Old Quad homes can have wall-furnace or earlier heating layouts rather than a ready-made central system. Closets, additions, and finished spaces affect where an air handler or indoor head can sit. A heat pump proposal should show how it will reach the rooms you use, including a bedroom that an older wall furnace never heated well. Line-set routing deserves the same attention as the equipment list. Ask where piping crosses walls, where the condensate drains, and how the installation will look from outside. If the house has property-specific historic requirements, establish those during planning. The route should be explained before equipment is ordered.
Santa Clara's electric utility is Silicon Valley Power, while PG&E supplies gas. That makes the utility discussion different from Sunnyvale's SVCE and San Jose's San José Clean Energy. Bring a utility bill so the estimate uses your actual service information. Programs to ask about include Silicon Valley Power, TECH Clean California, BayREN, and PG&E. Those names are a checklist for checking current program terms, not a promise of funding or eligibility. Keep the project quote separate from any possible incentive, and ask what documentation the current program requires before proceeding.
Your installation starts with EVS Mechanical's Bassett St shop in Santa Clara. You have a local contact for the estimate and for questions after the system starts running.
A fixed written quote identifies equipment, duct work, electrical needs, removal, and permits. You can compare what each proposal actually includes before making a decision.
The load calculation considers the house, including insulation and windows. Your current equipment's label is a starting detail, not the answer for its replacement.
You can discuss a ranch-home conversion and a radiant-home cooling plan with the same shop. The recommendation follows the layout and the comfort problem you want solved.
Call (408) 300-8254 with your address, current heating type, and whether you already have cooling. Mention any rooms that stay cold or hot. If you have a heat pump already, describe the fault rather than assuming replacement is required. You can request [HVAC repair](/services/hvac-repair) when a diagnosis is the first step.
The free estimate includes a site assessment and load calculation. The visit checks accessible ductwork, equipment space, electrical capacity, and possible outdoor locations. For a radiant home, it also establishes what heating you intend to keep. Have any association requirements and previous remodel information ready.
Your proposal should identify indoor and outdoor models, the rooms or ducts served, line-set routing, electrical scope, permits, removal, and installation steps. Ask what finish work is included and whether any separate trade work remains. Resolve those boundaries before approving the project so both sides share the same plan.
EVS handles the permit process and inspection scheduling for the installation. Work follows the approved scope, including indoor equipment, outdoor supports, refrigerant piping, drainage, and electrical connections. Timing depends on that scope and any coordination needed; confirm the schedule when you approve the quote rather than assuming every conversion is a simple swap.
The completed system needs a heating check and a cooling check. Your walk-through covers thermostat settings, filters, accessible maintenance points, and how to report a concern. Keep the equipment information and quote with your home records. If the house retains radiant heat, ask how to use both systems without conflicting settings.
Real installs — our crew on every job
Rebates: Ask about Silicon Valley Power, TECH Clean California, BayREN, and PG&E programs. Current terms and your address determine what needs checking; the estimate does not promise an incentive.
Customer reviews
62 Google reviews
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.”
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.”
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!”
Nate
Heat pump installation · Bay Area
EVS Mechanical installs ducted and ductless heat pumps in Santa Clara from its Bassett St shop. Call (408) 300-8254 for a free estimate. Bring details of your existing heat, any AC, and the rooms you want served. The visit establishes a written scope before you choose equipment or approve work.
Yes. A replacement estimate checks why the existing system is being replaced and whether the ducts, indoor unit, electrical circuit, and controls fit the proposed equipment. A failed part does not by itself prove the whole system needs replacement. If the problem is unclear, request diagnosis first and compare repair with a replacement scope.
Yes. Use preventive maintenance for a working system that needs service, and explain any symptoms when booking. Filters, coils, drainage, airflow, and controls all matter to performance. Tell the technician whether the issue happens in heating, cooling, or both so the visit addresses the actual complaint.
If your equipment has stopped heating or cooling, start with the symptom and request heat pump repair in Santa Clara. If you are planning a gas conversion or replacing aging equipment, request an installation estimate. You can discuss both paths when the condition is uncertain. You receive the proposed work in writing before proceeding.
That is an option to assess. A working radiant system can remain while ductless equipment adds cooling, or a heat pump can be designed to handle heating as well. The estimate needs to state which rooms and modes the new system serves. Keeping the slab heat does not remove the need to check electrical capacity and placement.
The panel needs checking before anyone can answer for your house. Existing loads, available capacity, the selected equipment, and the proposed circuits all affect the scope. An older panel is a reason to assess the installation carefully. Ask the quote to identify any required electrical work rather than treating it as an unexplained allowance.
Match the indoor and outdoor models, rooms served, duct scope, electrical scope, drainage, permits, removal, and finish work. Then compare how each proposal addresses your comfort problems. A smaller total with important work left out is a different project. Ask each contractor to explain any exclusions before deciding.
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