2026 Price Guide
Furnace Replacement Cost in Richmond TX — 2026 Price Guide
If your furnace is giving out and you need to know what a replacement actually costs before you commit to anything, this is the right place to start. This guide covers real 2026 furnace replacement prices for Richmond TX and Fort Bend County, broken down by unit size, efficiency level, and everything that affects the final number at your specific home.
Quick Answer
Most homeowners in Richmond TX pay between $2,200 and $4,500 to have a gas furnace replaced and installed. High efficiency models run higher. The range exists because furnace size, the condition of your existing venting, and whether your attic or closet installation requires extra labor all push the number up or down.
What Does a New Furnace Cost in Richmond TX? (2026)
Here is what Temper Mechanical charges for furnace replacement in Fort Bend County:
Furnace Type
Unit Size
Total Installed Cost
Gas furnace (80% AFUE — standard)
60,000 BTU
$2,200 to $3,200
Gas furnace (80% AFUE — standard)
80,000 BTU
$2,500 to $3,800
Gas furnace (80% AFUE — standard)
100,000 BTU
$3,000 to $4,500
Gas furnace (96% AFUE — high efficiency)
60,000 BTU
$3,000 to $4,500
Gas furnace (96% AFUE — high efficiency)
80,000 BTU
$3,500 to $5,500
Gas furnace (96% AFUE — high efficiency)
100,000 BTU
$4,500 to $6,500
Electric furnace
Standard
$1,800 to $3,500
Dual fuel system (heat pump with gas backup)
Varies
$5,000 to $9,000
What Is Included in the Replacement Price?
A full furnace replacement from Temper Mechanical includes:
Everything Covered in Your Quote
What Is NOT Included — and What It Costs
Depending on your home's situation, a few things can be added to the base price:
Ductwork
If your existing ducts are damaged, undersized, or not compatible with the new unit, repairs or replacements are needed.
Partial repairs: $300–$800 | Full replacement: $2,000–$6,000
Thermostat Upgrade
If your existing thermostat is not compatible with the new furnace, or you want to move to a smart thermostat.
Add $150 to $500 depending on the model
Venting Modification for High Efficiency Units
Standard 80% AFUE furnaces vent through a metal flue pipe. High efficiency 96% AFUE furnaces vent through PVC pipe. Moving to a 96% unit from metal flue venting requires an update.
Add $200 to $600
Attic Installation Labor
A large portion of Fort Bend County homes built in the 1990s and 2000s have their furnace in the attic. Getting a new unit into a tight attic space takes more time and coordination.
Add $150 to $300 vs a garage install
80% AFUE vs 96% AFUE — The Honest Answer for Texas Homeowners
This is the most common question we get during furnace replacement conversations in Richmond TX. The answer here is genuinely different from what you would hear from a contractor in a northern state.
Standard Efficiency
80%
AFUE Rating
80 cents of every dollar of gas becomes heat in your home
Lower upfront cost — practical choice for Texas's short heating season
Vents through existing metal flue — no modification needed in most homes
Right choice when home currently has standard metal flue venting
High Efficiency
96%
AFUE Rating
96 cents of every dollar of gas becomes heat — only 4 cents lost
In Fort Bend County, payback period stretches to 15–20 years due to the short 500–800 hour heating season
Requires PVC venting — homes with metal flue need a modification ($200–$600)
Makes more sense if PVC venting already exists and you plan to stay long term
Practical Recommendation
The practical recommendation for most Fort Bend County homes: If you have existing PVC venting already in place from a previous high efficiency unit, upgrading to 96% AFUE costs relatively little extra and can make sense for long-term owners. If your home has standard metal flue venting, the venting modification cost on top of the higher unit price makes a standard 80% AFUE furnace the more financially sound choice for this climate. A licensed technician can run the numbers for your specific home before you commit to either option.
What Affects the Final Cost in Fort Bend County?
1
Home Size and Proper Load Calculation
The right size furnace matters more than most homeowners realize. Contractors use a Manual J load calculation to size the unit based on your home's square footage, ceiling height, insulation, windows, and orientation. A furnace that is too large will short cycle — turning on and off too quickly — which causes uneven temperatures and accelerates wear. One that is too small will struggle on the coldest Fort Bend County nights. Any contractor who quotes a furnace size based only on your square footage without a proper calculation is cutting corners.
2
Brand and Model Tier
Entry-level furnaces from quality manufacturers sit at the lower end of each price range. Premium models with variable speed blowers, two stage gas valves, and longer warranty coverage sit higher. The variable speed blower is often worth considering in Texas specifically because it runs longer at lower speeds, which improves air circulation and helps manage indoor humidity during the months when the air handler is also running the AC.
3
Gas Line and Shutoff Condition
If the existing gas connection to the furnace is corroded or does not have a proper shutoff valve within reach of the unit, that needs to be addressed before installation. This is a code requirement, not optional.
4
Permit and Inspection
Fort Bend County requires a permit for furnace replacement. The permit fee runs $75 to $200 depending on the specific jurisdiction. A licensed contractor handles this on your behalf. Any contractor who tells you a permit is not needed for a full furnace replacement is either uninformed or skipping the step. Unpermitted work causes problems when you go to sell the home.
Repair or Replace — How to Make the Call
If you are trying to decide whether to put money into a repair or apply it toward a new system, the framework is straightforward:
Situation
What to Do
Furnace under 10 years old, repair under $500
Repair makes sense
Furnace 10 to 15 years old, repair over $500
Weigh carefully
Furnace over 15 years old, any significant repair
Lean toward replacement
Heat exchanger cracked, any age
Replace immediately
Repair cost more than 50% of replacement cost
Replace
What to Expect on Replacement Day
A furnace replacement in Richmond TX typically takes 4 to 6 hours. Here is how that visit goes:1
Gas Shutoff and Disconnect
The technician shuts off the gas supply and disconnects the old unit.
2
Old Unit Removal
They remove the existing furnace from the installation space.
3
New Unit Positioning and Connections
They position the new unit and make all connections: gas line, electrical, ductwork, and venting.
4
Startup Sequence and Verification
They restore gas supply and run a full startup sequence, checking ignition, flame color, temperature rise, and heat exchanger integrity.
5
Thermostat Verification
They verify the thermostat is communicating correctly with the new furnace.
6
Homeowner Walkthrough
They walk you through the basics: filter location, how to read the thermostat, and how to register the warranty.
7
Permit Inspection Scheduled
They schedule or confirm the permit inspection. You should have working heat before the technician leaves.
How to Know If You Are Getting a Fair Quote
When comparing furnace replacement quotes in Fort Bend County, make sure each one clearly states:
What Every Quote Should Include
1
The make, model, and AFUE rating
Two quotes can look similar in price and cover very different equipment. Always compare on the same model or an equivalent.
2
Whether the permit fee is included
Some contractors list the permit as a separate line item added at billing. Ask upfront.
3
What happens if venting or ductwork needs to be updated
Ask whether the quote assumes existing venting is compatible and what it would cost if it is not. A good contractor checks this before quoting.
4
The labor warranty
Parts are covered by the manufacturer. Labor quality is the contractor's responsibility. A reputable company backs their installation work with at least a one year labor warranty on top of the equipment warranty.
A quote that comes in significantly lower than others almost always reflects a lower-tier unit, an excluded permit, or venting compatibility assumptions that will cost extra on the day of installation.
Frequently Asked Questions
Furnace Replacement — Common Questions
How much does a new furnace cost in Richmond TX in 2026?
Most homeowners in Richmond TX pay $2,200 to $4,500 for a standard gas furnace replacement, fully installed with permit. High efficiency units run $3,500 to $6,500. The final price depends on the unit size, efficiency rating, brand, and whether any venting or ductwork updates are needed.
How long does furnace installation take in Fort Bend County?
Most standard furnace replacements take 4 to 6 hours. If ductwork or venting needs to be updated at the same time, allow 6 to 8 hours or a follow-up visit.
Do I need a permit to replace my furnace in Richmond TX?
Yes. A permit is required for furnace replacement in Fort Bend County. The fee typically runs $75 to $200. A licensed contractor pulls the permit on your behalf and the work is inspected before it is considered complete. If a contractor tells you a permit is not required, that is a serious red flag.
Is 96% AFUE worth it in Texas?
For most Fort Bend County homeowners, no. The short Texas heating season means the energy savings from a high efficiency unit take 15 to 20 years to pay back the higher upfront cost. If your home already has PVC venting from a previous high efficiency furnace and you plan to stay long term, the math improves. Otherwise, an 80% AFUE furnace at a lower upfront cost is usually the smarter financial choice for this climate.
What size furnace do I need for my home in Richmond TX?
A properly licensed HVAC contractor sizes your furnace using a Manual J load calculation. As a starting point: homes under 1,500 square feet typically need 60,000 BTU, homes from 1,500 to 2,500 square feet typically need 80,000 BTU, and homes over 2,500 square feet typically need 100,000 BTU. These are estimates only. The right size for your specific home depends on insulation, ceiling height, window count, and orientation.
How long will my new furnace last in Fort Bend County?
A properly installed gas furnace in Fort Bend County that receives annual maintenance can last 18 to 25 years because the heating season here is only 3 to 4 months. That is longer than the national average. You can read more about keeping it running well in our guide on why heating maintenance saves money in Richmond TX winters.
What brands does Temper Mechanical install?
We install equipment from leading manufacturers and will recommend the right fit for your home size, budget, and goals during your estimate. We explain the differences between options so you can make an informed choice rather than just taking our word for it.
What if both my furnace and water heater need replacing at the same time?
Replacing both in one visit can reduce the overall cost since the contractor is already mobilized. We cover everything involved in doing both at once in our guide on replacing your water heater and furnace together in Richmond TX.
Is financing available for furnace replacement?
Yes. Temper Mechanical offers financing options for furnace replacements. Ask about available plans when you call for your estimate.
Can I get same-day or next-day furnace replacement in Richmond TX?
In many cases, yes. We keep common furnace sizes in stock or can source them from local suppliers the same day or next morning. Call (346) 485-8142 and we will tell you what is available for your timeline.
Get Your Estimate
Get a Clear Price for Your Home
If your furnace is aging, failing, or you want to know exactly what a replacement would cost before making any decisions, call us or fill out the form. We serve Richmond, Sugar Land, Rosenberg, Missouri City, Pearland, Stafford, and the surrounding Fort Bend County area.
License TACLA 92943C
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(346) 485-8142
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