Keeping Redwood City Homes Warm the Right Way

Furnace Repair in Redwood City, CA

Boudreau Plumbing & Heating provides furnace diagnosis and repair in Redwood City and the surrounding San Mateo County area, Monday through Friday from 8am to 5pm. When your furnace stops producing heat, starts making unfamiliar sounds, or keeps shutting off before your home reaches the right temperature, the Boudreau team is ready to diagnose the problem and fix it correctly the first time.

Furnace Problems in Redwood City? Here Is What We Check First

Furnace problems during the Peninsula’s heating season, which runs roughly November through March, tend to surface fast. A system that ran fine last winter may not restart cleanly in the fall, or may start cycling oddly once the overnight temperatures drop. The Boudreau team has diagnosed and repaired these problems in Redwood City homes and across San Mateo County for over 75 years, and the root causes follow predictable patterns.

The most common furnace problems the team diagnoses in area homes include:

No heat or insufficient heat reaching the living space, often traced to a failed ignitor, a faulty gas valve, or a tripped limit switch
Short cycling, where the furnace starts, runs briefly, and shuts off before completing a heat cycle, frequently caused by a dirty air filter, an overheating heat exchanger, or a failing flame sensor
Pilot light or ignition failures, including standing pilot outages and electronic ignition faults
Unusual noises such as rattling, banging, or squealing from the blower motor, burner assembly, or ductwork connections
The blower motor running continuously without the burner engaging, often tied to thermostat wiring or a control board issue
Tripped limit switches, which are a safety response to overheating and usually indicate a deeper airflow or heat exchanger problem that needs inspection

If your furnace is displaying any of these symptoms, the honest answer is that a proper diagnosis is the only way to know the exact cause. Guessing at parts without a full inspection wastes money and can leave the underlying problem unresolved.

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Our Promise

Quality & Care: Honest Solutions, Exceptional Results

When you call Boudreau Plumbing & Heating, you get technicians who care about solving your problem right, no unnecessary add-ons. Just honest diagnostics, skilled craftsmanship, and solutions built to last. For over 70 years, Redwood City families have trusted us because we show up on time, tell you exactly what's wrong, and fix it right the first time. Every repair and installation comes with our comprehensive warranty and clear pricing. Proudly serving residents in San Mateo & Santa Clara County.

How the Boudreau Team Diagnoses and Repairs Your Furnace

The repair process at Boudreau Plumbing & Heating follows a consistent, step-by-step approach built around transparency and accountability. Here is what to expect from the first call through completed work.

When you contact the team, you describe the symptom and schedule a visit. The Boudreau team works to accommodate same-day scheduling during business hours when your situation allows it.

A directly employed Boudreau technician arrives at your home. Every person who walks through your door is a full-time member of the Boudreau team, not a subcontractor hired for the job. This matters because the technician is personally accountable to the Boudreau name and knows the types of forced-air heating systems common in Peninsula-area homes. The technician inspects the furnace thoroughly, checking components including the heat exchanger, burner assembly, draft inducer motor, pressure switch, flame sensor, capacitor, and flue pipe. Before any repair begins, the technician explains exactly what is wrong and why.

Transparent pricing is presented before work starts. There are no surprise add-ons and no pressure to approve work beyond what the diagnostic actually found.

The repair is performed by the same technician using quality parts. When the job is done, all work is backed by a comprehensive warranty on parts and labor, so if a problem related to the repair surfaces after the technician leaves, you have coverage.

Annual furnace tune-ups and preventive maintenance are also available and are a practical way to catch component wear, clean the burner assembly and flame sensor, check the heat exchanger for cracks, and verify that AFUE output is holding at expected efficiency levels before the heating season begins. A well-maintained gas furnace is less likely to fail mid-winter and tends to hold its BTU output more reliably over time.

Why Choose Us

Trusted Local Expertise Since 1951

Boudreau Plumbing & Heating combines three generations of craftsmanship with modern solutions to deliver reliable service throughout Santa Clara and San Mateo counties. Our local technicians understand the unique needs of Bay Area homes and treat each property with the same care we’d give our own family’s home.

Licensed & Insured

Boudreau Plumbing & Heating is a fully licensed and insured company.

Clear Pricing

All pricing is transparent and clearly communicated ahead of time.

Family Owned Business

Three generations of dedication to quality and community service.

Comprehensive Warranties

We stand behind our work with full warranty protection.

Furnace Repair or Furnace Replacement

One of the most common questions homeowners ask after a furnace diagnosis is whether they should repair the system or replace it. The Boudreau team gives you a straight answer based on what the diagnostic actually found, not on what generates a larger ticket.

As a general rule, a furnace under 15 years old with a single component failure, such as an ignitor, a limit switch, a blower motor capacitor, or a flame sensor, is typically a strong repair candidate. The repair cost is reasonable relative to the remaining system lifespan, and a quality fix will usually restore normal operation for several more years.

A furnace that is 15 to 20 years old and experiencing recurring failures, showing significant increases in heating bills, or showing signs of heat exchanger damage is a stronger candidate for replacement. A cracked heat exchanger is a safety issue and is not a component that can be patched. In that situation, replacement is the responsible recommendation.

California Title 24 energy standards apply to replacement furnaces installed in the state, and local permit requirements apply to furnace installations in Redwood City. The Boudreau team handles that process as a state-licensed and insured HVAC contractor, so you do not need to navigate permit requirements on your own.

If the diagnostic confirms your system is beyond economical repair, furnace replacement and installation is available. The team will walk you through the options that match your home’s ductwork, your square footage, and your budget, and will give you pricing before any work begins.

Why Redwood City Homeowners Have Trusted Boudreau Since 1951

Boudreau Plumbing & Heating was founded in 1951 by John Aurel Boudreau, a World War II Naval pipe fitter who learned his trade during the Great Depression while helping support a family of nine siblings. John fell in love with the Bay Area during his service and built his business from the home he constructed in the Redwood City hills, operating on the principle that honest service and skilled craftsmanship were the only way to build something that lasts. John passed the business to his son in 1992. John passed away in 2010, but the values he built the company on continue to guide the Boudreau team today.

That history means something concrete for a homeowner in Redwood City: the Boudreau team has been working in homes across the greater Redwood City area and San Mateo County for over 75 years. The technicians understand Peninsula-area housing stock, local heating system configurations, and what a well-maintained forced-air system looks like in this climate.

A few things set the Boudreau team apart from franchise operators and newer market entrants:

No subcontractors, ever. Every technician is a full-time, directly employed member of the Boudreau team. If something needs to be made right, the same team that did the work stands behind it.
BBB A+ rated, providing independent third-party verification of the team's service record.
Free estimates, so there is no cost barrier to getting a diagnosis started.
A comprehensive warranty on all parts and labor.
State-licensed and insured, holding a California State License Board contractor license.
Consistently top-rated by Redwood City homeowners who have worked with the team repeatedly over the years.

The team serves Redwood City, San Carlos, Menlo Park, San Mateo, and the broader San Mateo County area. Business hours are Monday through Friday, 8am to 5pm, with same-day scheduling available during business hours. If your furnace problem surfaces on a weekday morning, the team can often get a technician to you the same day.

Frequently Asked Questions About Furnace Repair in Redwood City

How do I know if my furnace needs to be repaired or replaced?

A furnace under 15 years old with a single component failure, such as a bad ignitor, a failed limit switch, or a worn blower motor capacitor, is typically a strong repair candidate. A furnace that is 15 to 20 years old with repeated failures, rising heating costs, or confirmed heat exchanger damage is more likely a replacement candidate, because the cost of continued repairs often approaches or exceeds the value of a new, more efficient system. Boudreau Plumbing & Heating gives homeowners a direct, honest recommendation based on what the diagnostic actually shows, including an explanation of the cost comparison between repair and replacement so you can make the decision that makes sense for your home and your budget.

Does Boudreau Plumbing & Heating use subcontractors for furnace repairs?

No. Every technician who works on your furnace is a full-time, directly employed member of the Boudreau Plumbing & Heating team. This is a deliberate policy that has been in place since the company was founded in 1951, and it means there is clear accountability for every job. You are not getting a third-party contractor whose relationship with the company ends when the truck leaves your driveway — you are getting a Boudreau technician who is covered by the team’s comprehensive warranty on parts and labor.

How long does a furnace repair typically take?

Most furnace repairs can be completed in a single visit, typically within two to four hours depending on the complexity of the problem and parts availability. Straightforward component replacements, such as an ignitor, flame sensor, or capacitor, are generally faster to complete than repairs involving the heat exchanger or control board. The Boudreau Plumbing & Heating team diagnoses the root cause before starting work, so you have a clear picture of the scope and timing before any repair begins.

What are the most common furnace problems in Redwood City homes near me?

The most common issues the Boudreau team sees in Peninsula-area homes include ignitor failures, short cycling caused by dirty air filters or limit switch trips, flame sensor buildup that prevents the burner from staying lit, and blower motor problems that affect airflow and heat distribution. Older gas furnaces in the area sometimes show heat exchanger wear that reduces combustion efficiency and raises safety concerns. Boudreau Plumbing & Heating technicians are familiar with the heating system types common in Redwood City and San Mateo County homes, which means diagnosis tends to be direct and accurate rather than exploratory.

Is the furnace repair work covered by a warranty?

Yes. Boudreau Plumbing & Heating backs all furnace repair work with a comprehensive warranty covering both parts and labor. This means that if a problem related to the repair surfaces after the technician has completed the job, the team addresses it under warranty. The warranty applies to all repair work performed by directly employed Boudreau technicians, giving homeowners clear recourse if anything needs follow-up attention.

What should I do if my furnace stops working during business hours?

Call Boudreau Plumbing & Heating as early in the day as possible, describe the symptom, and ask about same-day scheduling. The team operates Monday through Friday from 8am to 5pm and makes same-day appointments available when the schedule allows. While you wait, check that your thermostat is set correctly, verify that the air filter is not heavily clogged, and confirm the furnace’s power switch and circuit breaker are in the on position. These basic checks occasionally reveal a simple fix, but if the system still will not run, a technician visit is the right next step.

Do you provide furnace repair service throughout San Mateo County?

Yes. Boudreau Plumbing & Heating serves Redwood City as its primary market and extends furnace repair service throughout San Mateo County, including San Carlos, Menlo Park, San Mateo, and surrounding communities. The team has been serving homeowners across this area since 1951, so the service territory is one the technicians know well.

If your furnace is not working the way it should, the Boudreau team is ready to diagnose it, explain what is wrong in plain terms, and fix it with quality parts and work that is fully warranted. Reach out Monday through Friday between 8am and 5pm to schedule your service visit or request a free estimate.