When your home furnace finally quits, whether it is an ongoing issue, or just failed overnight, you need a replacement done right, fast, and at a fair price. Thomson Air Conditioning has installed and replaced gas furnaces across Huntington Beach and Orange County for decades.
We offer nearly every furnace option available, high-efficiency upgrades, a 5-year labor warranty, and financing to take the sting out of an unexpected expense.
What to expect: Most furnace replacements in Huntington Beach and Seal Beach take 4 to 8 hours for high-efficiency upgrades running higher. Thomson backs every install with a 5-year labor warranty.
A few furnace replacement factors we will inspect on-site:
- Accessibility. Furnaces in an easy-to-reach garage or closet cost less than attic units. We offer a discount for easily accessible locations.
- Gas and electrical connections. Most installs include a small allowance for new connections; worn parts may need replacing for safety.
- Exhaust and venting. If your exhaust is older Asbestos Transite pipe, we may need to remove it and install new double-wall venting through the roof with a new cap, collar, and flashing.
- High-efficiency upgrade. Condensing furnaces need a condensate drain and watertight venting as part of an upgrade.
As part of any Thomson AC visit, you will get a full written report and an on-site estimate before any work begins, so there are no surprises.
Here is more info about cost of Furnace Replacements: How Much Does It Cost to Replace Your Heater? (2026 Price Guide).
When Should You Replace Your Furnace?
Quick answer: Replace your furnace if it is 15 to 20 years old or older, needs frequent or expensive repairs, runs unevenly, or your heating bills keep climbing. A failing 20-year-old furnace is almost always cheaper to replace than to keep repairing.
Signs it is time for a new furnace:
- It is 15 to 20 years old or more, since most furnaces last about that long.
- Repairs are getting frequent or expensive. When a repair costs more than a third of a new unit, replacement usually wins.
- Some rooms never get warm, or the furnace short-cycles.
- Energy bills keep rising despite normal use.
- The burner flame is yellow instead of blue, or you have had cracked heat exchanger or carbon monoxide concerns. This is a safety issue, so call us right away.
High-Efficiency Furnaces: More Comfort, Lower Bills
AFUE (Annual Fuel Utilization Efficiency) is the gas-mileage rating for a furnace. It is the percentage of fuel converted directly to heat. An 80% AFUE furnace turns 8 of every 10 units of fuel into heat and the rest is waste. The higher the AFUE, the lower your gas bill, and today’s best furnaces reach 95 to 96% or more.
The trade-off with high-efficiency condensing furnaces is moisture, a byproduct of complete combustion. Most homes need a condensate drain added and the flue venting upgraded to be watertight. In a standard upgrade, Thomson will include new venting and a condensation removal system: a pump, a drain pan for attic units, and a condensate line to an approved location.
What Is Included: Our Furnace Replacement SErvice?
Changing out a home furnace is detailed work. Here is what a standard Thomson furnace change-out includes:
- Remove, haul away, and recycle the existing furnace
- Install the new furnace in the existing location
- Mount a new thermostat in the existing or an approved location
- Run new low-voltage control wiring as needed
- Install a filter base for easy filter changes, plus two filters
- Wire the electrical pigtail to your existing high-voltage outlet
- Connect a flexible gas line with a ball valve for easy shutoff
- Install a sediment trap with drip-leg and clean-out on the gas supply
- Run and securely connect exhaust vent piping
- Seal and insulate all sheet-metal and equipment connections
- Test all equipment for proper heat and fan operation
Our Warranty: 10 to 12 Year Parts, 5 Year Labor
Most furnaces include a 10-year parts warranty, and if you choose a Daikin it is a 12-year parts warranty. With documented maintenance, meaning you keep up your filter changes, the manufacturer replaces failed parts free, though you would normally still pay labor. That is why Thomson adds a 5-year labor warranty on every central furnace we install. Full peace of mind, in writing.
Why Huntington Beach Homeowners Choose Thomson AC
- Talk to a real person. No chatbots or call centers, just a friendly team that gets you scheduled.
- On time, every time. Our techs respect your schedule and your home, and call when they are on the way.
- Honest, plain-English options. We explain the issue, lay out the costs upfront, and only recommend what you truly need.
- Local and licensed. Serving Huntington Beach, Seal Beach, Los Alamitos, Rossmoor, and across Orange County. CA License #959811.
- Financing available. 100% financing through GreenSky to spread the cost.
Furnace Replacement FAQs
How long does it take to replace a furnace?
Most furnace replacements take 4 to 8 hours. A standard change-out in an accessible location is often done in a single day. High-efficiency upgrades or venting changes can add time.
Should I replace a 20-year-old furnace?
Usually, yes. Most furnaces last 15 to 20 years, and by 20 a furnace is less efficient and more failure-prone. If a repair costs more than about a third of a new unit, replacement is the smarter spend.
Does homeowners insurance cover furnace replacement?
Typically only when the failure results from a covered peril, like a fire, not from normal age or wear. Check your policy, since routine end-of-life replacement is generally not covered.
Can a heat pump replace my furnace?
Often, yes. In Southern California’s mild climate, a heat pump can handle both heating and cooling efficiently and may qualify for rebates. We can compare a high-efficiency furnace against a heat pump for your home during the estimate.
How often does a furnace need to be replaced?
About every 15 to 20 years with regular maintenance. Annual tune-ups and routine filter changes extend a furnace’s life and keep efficiency up.
Ready for Comfort You Can Count On?
Thomson Air Conditioning makes furnace replacement in Huntington Beach simple: a free, no-pressure on-site consultation, an honest estimate, and a 5-year labor warranty behind every install. Call (562) 201-3014 or book online to get started.
