Actual EVS work

San Jose · from our Bassett St shop

Furnace Repair in San Jose, CA — Get Your Heat Back

Furnace will not light, keeps shutting off, or will not restart after an outage? Call for a free diagnostic and a written estimate before any work. Same-day no-heat calls, subject to scheduling.

Same-day no-heat calls

Call (408) 300-8254 Get Free Estimate

CA Lic #1089826Free diagnosticWritten estimate before workBassett St shop, Santa Clara

Furnace repair in San Jose, CA starts with a diagnosis of the no-heat problem; EVS Mechanical serves gas furnaces, wall furnaces, and radiant-home boilers from its Bassett St shop in Santa Clara. Call EVS at (408) 300-8254 for a free diagnostic and a written estimate before any work, with same-day no-heat calls subject to scheduling.

What usually fails on the first cold night in San Jose?

The first cold snap often exposes a furnace problem that was easy to miss when the heating stayed off. Ignition faults, a dirty flame sensor, or restricted airflow can leave the house cold just when you start using heat again. A thermostat calling for heat tells you the room is cold; it does not identify which part failed. Describe the sequence when you call: nothing happens, the furnace clicks without lighting, or it starts and stops. Mention whether the problem began after a power outage. A modern forced-air gas furnace uses electricity for its controls, ignition, and blower, so gas service alone does not keep it heating when power is out. Once power returns, a system that still will not run needs diagnosis. EVS offers a free diagnostic and a written estimate before any work. Call (408) 300-8254 with your San Jose address, equipment location, and symptoms. If you smell gas, leave the area and call 911 and PG&E from a safe distance; do not operate electrical switches or attempt a furnace restart. A gas emergency comes before booking a repair.

When to call about yours:

The furnace clicks but never produces heat
The burner starts and the system shuts down again
Air moves through the registers but the rooms stay cold
The furnace will not restart after power has returned
One part of the house stays cold while other rooms warm up

Who this is for: San Jose homeowners and property managers with a no-heat problem, unreliable starts, or uneven heating that needs a clear diagnosis.

Heating and cooling in San Jose homes

Willow Glen and Rose Garden: identify the heating system

Older bungalows and homes in Willow Glen and Rose Garden often have wall-furnace or earlier heating layouts. If your heat comes from a wall unit rather than ceiling or floor registers, say so when booking. A central-furnace repair description may not match the equipment in your house. Tell the technician where the heat is produced, how it normally starts, and what changed. If an older chimney or vent forms part of the installation, include that in the history. A repair estimate should follow the actual system and its condition. You should not need to know the correct part name before asking for help.

Cambrian, Evergreen, and Berryessa: separate equipment faults from duct faults

San Jose has ranch homes in Cambrian and tract homes in Evergreen and Berryessa. Many have a furnace serving multiple rooms through ducts. When the furnace runs but a bedroom stays cold, the problem may be in air distribution rather than a failed heating component. Point out rooms with weak airflow and say whether that pattern is new. Mention work in the attic, recent remodeling, or changes to registers. The diagnostic should establish whether the repair belongs at the furnace, the controls, or the ducts. If duct repair is proposed, ask which branch or return problem the work will address and have that scope written separately.

Fairglen Eichlers: a furnace search may lead to boiler service

The Fairglen Additions Eichler tract in Willow Glen heats with hydronic radiant slabs. If your home uses warm floors and a boiler, tell EVS that when you call. Searching for furnace repair is understandable when the heat is out, but a boiler needs a different diagnostic path. EVS services boilers as well as gas and wall furnaces. Start with restoring the existing heating system if that is your goal. If you also want cooling or are planning a conversion, the San Jose heat pump installation guide explains the ductless and ducted planning questions. A heating fault does not by itself settle the conversion decision.

Larger Almaden Valley homes: explain which rooms lose heat

Almaden Valley has larger two-story homes. A no-heat call there may involve the entire house or only one part of it. Tell the technician which thermostat controls the affected area and whether other rooms still receive heat. If you do not know, describe what you observe.

An outage is part of the history, not a diagnosis

If the furnace stopped during an outage, note when power returned and whether the thermostat display came back. Do not assume a surge damaged the control board just because the timing matches. A technician needs to establish whether the furnace has power and what prevents a normal heating cycle. You can check the thermostat setting and an accessible filter using the owner's instructions. Leave electrical testing, ignition work, and safety controls to the technician. Do not keep resetting a system that starts and shuts off again. Record what it does and pass that sequence on when you call.

What you get from an EVS repair visit

A diagnosis before a purchase.

You get the cause of the no-heat problem and a proposed repair scope. If replacement is worth comparing, you can review it as a separate choice with the reasons explained.

Written estimate before any work.

The proposed parts and labor go in writing. You decide whether to proceed before the repair begins, rather than trying to reconstruct a verbal price after the visit.

More than central furnaces.

Gas furnaces, wall furnaces, and radiant-home boilers need different questions. Describe the equipment you have so the visit starts with the right system.

A nearby shop to contact.

EVS Mechanical is based on Bassett St in Santa Clara and serves San Jose. Call (408) 300-8254 for scheduling and follow-up without relying on a guessed travel time.

A diagnosis before a purchase

You get the cause of the no-heat problem and a proposed repair scope. If replacement is worth comparing, you can review it as a separate choice with the reasons explained.

Written estimate before any work

The proposed parts and labor go in writing. You decide whether to proceed before the repair begins, rather than trying to reconstruct a verbal price after the visit.

More than central furnaces

Gas furnaces, wall furnaces, and radiant-home boilers need different questions. Describe the equipment you have so the visit starts with the right system.

A nearby shop to contact

EVS Mechanical is based on Bassett St in Santa Clara and serves San Jose. Call (408) 300-8254 for scheduling and follow-up without relying on a guessed travel time.

From first call to finished job

Explain what the furnace does
Call (408) 300-8254 and tell us whether there is no heat anywhere or only a room that stays cold. Mention an outage, recent work, sounds, and any display message. Share the model number if it is accessible without opening equipment. Ask about same-day availability for no heat; scheduling and the repair itself depend on the job.
Get the free diagnostic
The visit establishes the fault and the system involved. The technician checks the reported symptom and explains what the findings mean. For intermittent problems, your account of when they happen helps focus the visit.
Review the written estimate
Before any work, review the repair proposed, parts involved, and whether further work depends on the findings. Ask about parts availability and the next steps if the repair cannot be completed during that visit. If a replacement comparison is warranted, request its own scope. A no-heat call should leave you with a decision you can understand.
Approve the repair and confirm operation
Work begins after you approve the written estimate. The technician then checks operation and explains the result. Ask what to watch for and how to report a repeat fault. A repair is about restoring the system's safe function, not only making warm air appear briefly before the technician leaves.
Keep a record for the next heating season
Save the diagnostic findings and the completed repair information. If the furnace had trouble starting last season, bring that history to a [preventive maintenance](/services/preventive-maintenance) visit before regular heating use. A test run before the first cold night can reveal a problem while you still have time to arrange service.

Our Work

Real installs — our crew on every job

Attic duct trunk and plenum

Flex-to-metal duct transition

Attic duct trunk with supply grilles

Insulated return plenum with grilles

Foil-wrapped attic plenum

Attic plenum in a tight access space

Gas valve and electrical detail

Dual inline duct fans and plenum

Dual inline duct fans and plenum, wide view

Dual inline duct fans and plenum, alternate angle

Gas furnace installed in a closet alcove

Furnace and ductwork in a crawlspace

Pricing

Get an accurate quote

(408) 300-8254

Owner on every installNo subcontractorsFree estimates

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.”

Michael Cheung

HVAC repair · Bay Area

Verified

“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

Verified

“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

Verified

Read all 62 Google reviews

Frequently Asked Questions

Call EVS Mechanical at (408) 300-8254. Describe the no-heat symptom, your San Jose address, and whether the equipment is a central furnace, wall furnace, or boiler. EVS offers a free diagnostic and a written estimate before any work. Same-day no-heat calls are subject to scheduling, with timing confirmed when you book.

A modern forced-air gas furnace needs electricity for the blower, ignition, and controls, even though gas supplies the heat. It will not run normally during a power outage. If power has returned but the furnace still will not start, tell the technician about the outage and the current symptoms. Do not bypass controls to force it on.

That symptom alone does not establish the answer. The ignition sequence needs checking to identify the fault. Explain whether it ever lights, how long it runs, and any display message you can see without opening equipment. The diagnostic findings should support the repair estimate or a separate replacement discussion before you approve work.

Yes. Tell EVS what system you have when booking. A wall furnace heats differently from a central ducted system, and an Eichler's radiant floors use a boiler. If you are unsure, describe where heat normally comes into the room.

If there is no gas smell or other emergency, check the thermostat setting, batteries if applicable, and an accessible filter using the owner's instructions. Tell EVS about any power interruption. Leave internal electrical, gas, and ignition checks to a technician. The useful result is a clear account of the symptom, not repeated attempts to restart it.

EVS provides a free diagnostic and a written estimate before any work. The finding determines the proposed repair. You approve the scope before work begins, and any replacement comparison should be explained separately.

No repair should be promised before the fault and required parts are known. Call for same-day no-heat availability, then confirm the appointment and next steps. A diagnostic visit establishes what is needed. Ask for a clear plan if parts or further work mean the heat cannot be restored during that visit.