The short answer
Cost Factors
The biggest cost drivers are the furnace type and fuel source. A standard gas furnace typically costs less than a high-efficiency model or an electric heat pump system. Your home's size and existing ductwork also matter, since a larger home needs a more powerful unit.
Installation complexity adds to the total. Replacing an old furnace in an easy-to-access spot is usually less expensive than one tucked into a tight crawlspace. If the ductwork needs repairs or the venting must be updated, those costs stack on top. Local labor rates in your area also influence the final bill.
- Furnace type and fuel source
- Efficiency and system size
- Ductwork condition and layout
- Accessibility of the installation spot
- Local labor rates
Price Range and Variations
You can expect to pay between $2,500 and $10,000 for a standard replacement, but that range is broad. A basic gas furnace with simple installation might fall on the lower end, while a high-efficiency model with complex ductwork work can push toward the upper end. The final number depends on your home's specifics and the pros you hire.
Older homes often require extra work to bring the system up to current codes. If your furnace is in a difficult spot, the labor cost rises. Always ask for a detailed breakdown of equipment and labor so you know what you are paying for.
Water Damage and Your Furnace
If your furnace has been exposed to water from a leak or flood, replacement may be necessary. Water can damage the electrical components, rust the heat exchanger, and create mold inside the unit. Running a water-damaged furnace is a safety risk, so have it inspected before use.
A water damage inspection can reveal hidden moisture in walls or under floors that might have affected the furnace. If the water came from a burst pipe or roof leak, the source needs fixing first. The pros can help dry out the area and assess whether the furnace is salvageable or must go.
Insurance Considerations
Homeowners insurance may help cover furnace replacement if the damage stems from a sudden, accidental event like a pipe burst. However, policies vary, and your insurer decides what is covered. Check your policy and talk to your agent about the specifics of your situation.
Document the damage with photos and keep receipts for any temporary repairs. If you file a claim, the adjuster will need to see the extent of the damage. Policies vary, and your insurer decides what is covered.
Next Steps
Start by getting a professional assessment of your furnace and the surrounding area. If water is involved, a water damage inspection can identify hidden issues. Then, have a few local pros give you detailed cost estimates for replacement. Compare the scope of work, not just the price.
If you live in a climate with hot summers and spring storms, that weather can stress your HVAC system and increase the chance of water intrusion. Acting quickly after any water event helps prevent further damage.
- Schedule a water damage inspection if leaks are suspected
- Ask for written estimates from multiple pros
- Check your insurance policy for coverage details
- Address any moisture issues before installing a new furnace
Water damage does not wait
Call (817) 799-6732 any time, day or night, and describe what happened.
Call Now (817) 799-6732Frequently asked questions
Can a water-damaged furnace be repaired?
Sometimes, if the damage is minor and caught early. A pro can dry out components and replace small parts. But if water reached the control board or the heat exchanger, replacement is often the safer choice. Have a qualified pro inspect it before you decide.
How long does a furnace replacement take?
A typical replacement takes one to two days, but that depends on the complexity of the installation. If ductwork repairs or electrical updates are needed, it can take longer. The pros will give you a timeline based on your specific situation.
Should I replace my furnace after a flood?
If the floodwater reached the furnace, replacement is usually necessary. Floodwater contains contaminants that can corrode parts and create health hazards. Even if the water receded, hidden moisture can cause problems later. Have a pro assess the unit before turning it on.