rating iconrating iconrating icon

Gas Furnace Repair Costs

Gas Furnace Repair Costs

Most homeowners think of a furnace as a set-it-and-forget-it home appliance that operates quietly in the background – until something goes wrong. When something does go wrong, your first thought is probably the best way to keep your family warm and comfortable until necessary repairs can be made. Your next thought is likely to be your gas furnace repair costs.

Gas furnaces work via a pilot light that ignites the burners and circulates warmth through the air. Gas furnace repair costs vary according to the repair and can range widely from as little as $100 to as much as $1,000 or more. Having at least a general idea of the cost of your repair can relive anxiety and speed up the repair process considerably. Let’s look at a few of the most common causes of gas furnace repair and their costs.

Ignitor Replacement

Because it’s a brittle part that can break easily, replacing the ignitor on your gas furnace is a delicate job. When the ignitor detects a flame, it tells the furnace to turn on the gas supply. Our technician will locate and remove the faulty ignitor inside your furnace, install a new one, and run your furnace through a heat cycle. This repair typically takes up to three hours and can range in cost from $180 to $300.

Gas Valves

Replacing your furnace’s gas valves is a critical repair because the valves open and close to regulate the flow of gas to the pilot light and burner. The valves control the gas and prevent fires and explosions. Our technician will inspect your furnace and choose the right type and size valves. They’ll shut off the gas supply to your furnace, find and remove the nonfunctioning valves, install new ones, and ensure the furnace ignites correctly. This repair can cost between $280 and $470.

Flame Sensors

Your furnace’s flame sensors prevent unnecessary gas flow. To replace a defective flame sensor, our technician will turn off your furnace and allow the flame to cool before removing the broken sensor and replacing it with a new one. They’ll make sure it’s facing in the right direction near your pilot light, reconnect the sensor’s leads and replace the ignition. Depending on your furnace, this repair can cost between $180 and $250.

Furnace Motors

The motor in your furnace forces heated air from the furnace through the vents in your house. When the motor stops working, your home cools down quickly. Once they diagnose the problem, our technicians will remove and repair or replace your furnace’s motor. This might involve replacing the motor and fan, cleaning the filter, and testing the new assembly to be sure it now functions correctly. It can take between one and three hours to complete the repair or replacement with an expected cost of $400 to $700.

Thermostat Replacement

To replace your thermostat, our technicians turn off the power, remove your old thermostat and replace it with a new one. This is an ideal time to consider choosing a modern, programmable thermostat that increases energy efficiency. They’ll disconnect the wiring from the old thermostat, attach a new mounting plate, reconnect the wiring, and make sure everything works together properly. The cost for thermostat replacement varies from $180 to $400.

Most HVAC companies will charge a service fee to come to your home, inspect your furnace, and diagnose your repair. This charge is sometimes deducted from the cost of the repair. The best way to manage gas furnace repair costs is to keep your furnace in good working order with regular maintenance. Additionally, the age of your furnace and the frequency of its use can have a bearing on its repair costs. Purchasing a high efficiency furnace can also lower repair costs as well as lowering use and maintenance costs. A furnace with a high Annual Fuel Use Efficiency (AFUE) rating yields significant savings over the life of your furnace.

If your furnace is more than ten years old, requires frequent repairs, or is operationally inefficient, it might be time to consider a replacement, rather than a repair. For gas furnace repair cost, it goes without saying that the best and least expensive furnace repair is the one you can prevent through regular care and maintenance.

Whether you need regular, timely furnace maintenance or fast, reliable, affordable furnace repair, call LA Construction Heating & Air Conditioning at (818) 341-3406. We have the knowledge and experience you need to keep your home and family warm, safe, and comfortable. A broken furnace doesn’t have to be daunting. We’re here to help with any gas furnace repair cost. Call us today to get the peace of mind you deserve. To learn more about services our company offers, please visit our homepage.

Our Services

Air Conditioning Installation

For AC installation, our certified team ensures a professional and seamless AC replacement process. We perform a detailed load calculation to select the perfect AC unit for maximum energy efficiency. We handle everything from ductless mini-split systems to full HVAC system installation, guaranteeing a quality AC installation service that keeps you cool and saves you money. Learn more

two air conditioning units near los angeles
Technician talking to customer about ac

Heating Installation

We provide expert heating installation and furnace replacement services. Our certified technicians perform a thorough load calculation to recommend the best and most energy-efficient furnace installation. We manage every detail of your new heating system installation, from start to finish, to deliver a high-quality, reliable, and professional heating installation service.
Learn more

Air Conditioning Repair

At home or at your workplace, there's always the potential for sudden HVAC operating failure and the need for immediate HVAC repair. We'll put you back into the comfort zone ASAP. Our technicians are experienced, EPA certified, trained, background checked, drug tested, Workers' Compensation insured, uniformed, professional, and honest. They will diagnose your system and provide you with a written estimate for repairs.

Technician working with gauges near condenser
Person working on indoor ac unit

Heating Repair

When your heating fails, our team provides prompt and professional heating repair and furnace repair. We are experts at diagnosing and fixing a wide range of issues. We offer fast emergency heating repair to minimize your business's downtime, delivering reliable heating service that ensures your system runs safely and efficiently all winter. Learn more

Air Quality

Whether you're at home or at work, your health and comfort can be affected by poor air quality. And, the air quality is affected by the air temperature, the humidity, the quality of ventilation and any contaminants or irritants like indoor pets, pollen, dust mites, cleaning products, lead, Formaldehyde and Asbestos, Poor Air Flow, mildew and mold. Poor air quality can cause more than slight discomfort - much more!

Picture of zipper opening up on Los Angeles
HVAC Technician working on a unit on rooftop

Maintenance

As Benjamin Franklin said, an ounce of prevention is worth a pound of cure. Same idea applies to your central heater and air conditioner maintenance.Think of it as an oil change for your auto, which improves your car's engine performance, maximizes your gas millage and minimized down time by avoiding unnecessary repairs.

What our clients say

Shape- Social Media IconShape BG CTA

New In Our Blog

Piggy Bank with cash falling out near AC

2025 Los Angeles Heat Pump Rebates

Los Angeles homeowners can save thousands on heat pump installations with rebates from LADWP, federal tax credits, and incentives from TECH Clean California. Learn how these programs can dramatically lower your upfront costs, boost home efficiency, and contribute to a greener future.

Piggy Bank with cash falling out near AC

What to Look for When Choosing a New HVAC System

Choosing a new HVAC system is a significant investment that requires careful consideration of your specific needs, from the size of your space to your budget and energy efficiency goals. The key to a successful project is not only selecting the right system type and features but also hiring a qualified, professional contractor in Los Angeles for proper and safe installation.

Piggy Bank with cash falling out near AC

Attic Fan Installation for Los Angeles Homes

Boost comfort in your Los Angeles home with attic fan installation. Discover how attic ventilation improves AC efficiency, protects your home, and keeps it cooler—especially when paired with a new AC installation.

Piggy Bank with cash falling out near AC

BWP Heat Pump Rebates & Installation in Burbank | Save Now

Learn how BWP heat pump rebates can lower your AC replacement costs. Maximize heat pump savings—contact LA Construction, Heating and Air for a free estimate.

Piggy Bank with cash falling out near AC

Air Conditioning Service for Los Angeles

Need air conditioning service in Los Angeles? LA Construction, Heating and Air provides expert AC maintenance, repair, and installation to keep your home or business perfectly cool.

Piggy Bank with cash falling out near AC

Commercial AC Repair: Recognizing the Red Flags in Your LA Business

Don't let a failing commercial AC disrupt your Los Angeles business. This guide helps you identify critical signs of trouble, from weak airflow to rising energy costs, ensuring timely commercial AC repair or installation.

We Install and Service All Major Makes and Models