FURNACE REPAIR

Serving Los Angeles and The Greater San Fernando Valley

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In need of furnace repair?

MightyServ Heating & Air Conditioning provides expert furnace repair throughout Los Angeles and the greater San Fernando Valley. Our technicians diagnose issues quickly, explain the problem clearly, and restore safe, reliable heat so your home stays comfortable—especially during cold Valley nights.

We’re built for real-world repairs, not temporary fixes. From older furnaces in long-established neighborhoods to newer systems in recently updated homes, we know how local systems fail and how to fix them the right way.

We proudly serve Los Angeles and surrounding San Fernando Valley communities, including Burbank, Glendale, Van Nuys, Sherman Oaks, and North Hollywood. Local homeowners rely on us for responsive service, clear communication, and repairs done right the first time.

Why Homeowners Choose MightyServ for Furnace Repair

  • Local technicians who know San Fernando Valley homes
  • Accurate diagnostics without unnecessary upsells
  • Repairs completed to code with safety in mind
  • Experience with both older and modern heating systems
  • Reliable service from a family-owned company serving the area since 1963

We don’t just repair furnaces—we help homeowners feel confident their heating system is safe and dependable.

We Repair All Heating Systems, Brands, and Models

Our certified technicians have the expertise to repair all types of heating systems, regardless of the brand or model.

We work on the following heating system types:

Gas Furnaces – Including single-stage, two-stage, and high-efficiency systems

Electric Furnaces – Reliable electric heating systems and air handler-based setups

Heat Pumps – Ducted and ductless heat pump systems that provide both heating and cooling

VRF / VRV Systems – Variable Refrigerant Flow systems (heat pump–based technology used in larger homes and multi-zone properties)

Ductless Mini-Split Systems – Individual zone heating systems commonly used in additions and retrofits

Packaged HVAC Units – All-in-one heating and cooling systems typically installed outdoors

From furnaces and heat pumps to ductless systems, we diagnose and fix issues quickly and effectively. Whether you have a system from Trane, Lennox, Carrier, Rheem, Goodman, or any other leading manufacturer, we’ve got you covered. Trust us to restore your heating system’s performance and ensure your home stays warm and comfortable throughout the colder months.

Why Furnace Repairs Are Urgent in the San Fernando Valley

While Los Angeles winters are mild compared to other regions, Valley homes still rely heavily on furnaces during overnight temperature drops. Many homes in areas like Sherman Oaks, Van Nuys, and North Hollywood were built decades ago and still operate older furnace systems.

Common local issues we see include:

  • Aging furnaces struggling to ignite consistently

  • Poor airflow due to older duct layouts

  • Uneven heating in expanded or remodeled homes

  • Safety shutoffs caused by worn components

Delaying furnace repairs often leads to complete system failure at the worst possible time. Addressing problems early helps prevent more expensive repairs—or unexpected replacements.

Early detection matters

If furnaces could talk, residents in the San Fernando Valley and LA would have a lot more confidence maintaining their heaters before, during, and after the cooler winter months. Furnaces would let you know when it’s time for routine maintenance. They would also be able to anticipate malfunctions and alert homeowners to have a technician diagnose and perform furnace repair services before they lead to a complete system breakdown. 

Unfortunately, most residents are too busy to be able to learn all the ins and outs of these highly technical machines. That’s where we come in. We may not be able to talk to your furnace either, but our NATE certified technicians are THE most trained specialists in the industry and know exactly what to look for and how to fix it when an HVAC emergency arises.

Don’t wait until your system has experienced irreparable damage or until your next scheduled maintenance visit. Learn the basic signs of a furnace malfunction so you can protect your expensive and important appliance by calling in a pro before it’s an emergency.

What are the signs that my furnace is malfunctioning?

While you can’t speak to or reason with your faulty furnace, it doesn’t mean it’s not going to communicate certain signs and symptoms that it’s not functioning optimally.

Watch for these signs of a defective furnace:

  • Unfamiliar or strong odors coming from vents or the unit – Rotting or burning smells can be a sign of a malfunction or even an infestation. Strong odors are often a sign of a severe issue and may even be detrimental to your health.
  • The furnace begins to run louder – From unnatural grinding to excessive effort, older or damaged furnaces can become louder when they aren’t working properly. This is a sure sign that a furnace is operating less efficiently and should be fixed.
  • Higher energy bills – Furnaces can lose some of their operational efficiency over time, but if your system is under 5 years old and already showing signs of inefficient energy consumption, it may not just be normal wear and tear.
  • Irregular heat cycles – If you notice cool zones in your home or odd starting and stopping from your furnace, it’s time to consult a technician.
  • Continuous running (cycling) – In line with higher energy bills, a furnace that runs continuously is experiencing one or more issues that are impacting its ability to efficiently and completely heat your home.
  • Leaking fluids – Whether it’s a clog or a break in a line, fluid buildup or leakage around a furnace is a sure sign that a repair is necessary.
  • Discrepancy in your thermostat setting and real-feel temperature – While this can be a thermostat issue, it could also be a sign that your furnace can no longer effectively heat your home. If the later is the case, a technician can help decide whether or not your furnace needs to be repaired or replaced.

Even if you won’t be able to address these repairs yourself, it can be invaluable for the comfort of your home or office and the longevity of your system to detect problems early. Just like our bodies need balance and care to maintain our optimal functionality, a furnace is no different. If a problem is ignored for an extended period of time, one or more of the components in your furnace could be overexerting to compensate. In this way, early detection not only addresses the source issue, but potentially the health of the entire unit.

What to look for in a quality HVAC repairman

Identifying the problem is only half the battle. Ensuring that your furnace is in the best possible hands means that it’s going to be thoroughly inspected, the root issue is properly addressed, any auxiliary issues are noted and fixed and that you aren’t being waitlisted or over-charged. While that may seem like a lot to ask for, the best HVAC companies always operate with integrity, efficiency and expert knowledge.

If you’re looking to have your furnace serviced in Los Angeles or the San Fernando Valley, make sure the technician you choose checks most, if not all, of these boxes:

  • 24/7 accessibility – Your furnace keeps your family comfortable throughout the cold winter nights. When it needs repaires, you need to be able to rely on your HVAC provider to have the capacity to efficiently triage emergency calls and send over a trained technician ASAP.
  • Fast service – It’s important that the job is done right, but it’s equally important that a repair job addresses your needs quickly so that you experience as little inconvenience as possible.
  • Proven excellence – HVAC equipment is too expensive and important to place in the hands of just anyone. Look for companies that not only have been in business for many years, but that are also committed to continued learning/training.
  • The right parts – Some providers have a minimal selection of parts and tools on-hand to provide same-day solutions to major problems. The longer they take, the longer you and your family are stuck without a comfortable (liveable) home.
  • An emphasis on learning – HVAC may seem like an old and established industry, but the truth is, it’s ever-evolving. From new technologies to new industry regulations, you always want to be certain that your furnace is going to receive modern solutions.

Your Local Team of Furnace Specialists

MightyServ has been in business for over 60 years servicing the greater Los Angeles area. As one of Carrier’s Factory Authorized Dealers, award-worthy is our standard. We take pride in investing in our technicians’ training and certifications to ensure that our customers always receive industry-leading solutions to their home comfort problems.

If your furnace is in need of repair and you live in West LA, Tarzana, Northridge, Thousand Oaks,  West Hills, or any surrounding area, call (818) 348-4768 for fast and effective service, 24/7!

Common Questions About Furnace Repairs in LA & the Valley

Do you offer same-day furnace repair in Los Angeles and the San Fernando Valley?
Yes. MightyServ provides same-day furnace repair throughout Los Angeles and the San Fernando Valley whenever availability allows.

What areas do you service for furnace repair?
We service furnace repairs across the San Fernando Valley, including Burbank, Glendale, Van Nuys, Sherman Oaks, North Hollywood, Reseda, Woodland Hills, West Hills, Northridge, and surrounding areas.

What furnace problems require immediate repair?
No heat, burning smells, loud banging noises, frequent system shutdowns, or a furnace that won’t turn on should be addressed right away to avoid safety or comfort issues.

Can you repair furnaces in older Los Angeles homes?
Yes. Many homes in Los Angeles and the Valley have older furnaces or aging ductwork. Our technicians are experienced working with older systems and upgrading them safely when needed.

Do you repair gas and electric furnaces?
Yes. MightyServ repairs both gas and electric furnaces, including standard and high-efficiency models.

What brands of furnaces do you repair?
We repair all major furnace brands, including Carrier, Trane, Lennox, Goodman, Rheem, and more.

Why is my furnace blowing air but not heating?
This can be caused by ignition issues, thermostat problems, clogged filters, or airflow restrictions. Our technicians diagnose the exact cause and fix it quickly.

Why does my furnace keep turning on and off?
Short cycling is often caused by overheating, airflow problems, or faulty sensors. It should be repaired promptly to prevent system damage.

Is it safe to run a furnace that smells like gas or burning?
No. If you smell gas or burning odors, turn the system off and call for professional furnace repair immediately.

How long does a furnace repair usually take?
Many furnace repairs can be completed in one visit. More complex issues may take longer depending on parts and system condition.

Do you explain repair options before starting work?
Yes. We explain the problem, your repair options, and pricing before any work begins.

Can you help determine if my furnace should be repaired or replaced?
Yes. If repairs are frequent or the system is nearing the end of its lifespan, we’ll explain whether repair or replacement is the better option for your home.

Do you offer emergency furnace repair?
Yes. Furnace breakdowns don’t follow a schedule, and we’re available to help when heating issues can’t wait.

Will furnace repair help lower my energy bills?
Fixing airflow, ignition, or efficiency issues often improves performance and can help reduce energy waste.

Do you service furnaces in apartments and multi-family properties?
Yes. MightyServ provides furnace repair for residential homes, apartments, and multi-family properties throughout the area.

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