Evaporator coil replacement in the Tampa Bay outer ring
An evaporator coil replacement reported a median $3,000 (57 reports), with the middle half at $2,000 to $4,500.
36-second explainer. What an evaporator coil replacement cost homeowners and what to rule out first.Stock footage via Pexels. Music: “bluzynette” by Fadièse (Jamendo, CC BY-SA). All credits.Stock photo, not our work. Photo by Jay Brand via Pexels.
Homeowner-reported prices related to evaporator coil replacement
Middle half of reports Median
Evaporator coil replacement N = 57
$3,000$2,000–$4,500
Expansion valve (TXV) N = 17
$1,900$1,180–$2,500
Outdoor unit and coil together N = 68
$7,850$6,450–$10,000
Reported price, U.S. dollars
Source for every price on this page: HVACPro analysis of homeowner-reported quotes and invoices in public Reddit posts, 2025-01-01 to 2026-09-29. Repair figures are U.S.-wide; only rows marked Florida are Florida. The posts do not always say what a price included, and people who post are not a random sample. N is the number of quotes behind each figure.
Show the prices as a table
Homeowner-reported prices related to evaporator coil replacement
The evaporator coil is the indoor half of the refrigerant loop, usually sitting above or inside the air handler. It cools and dries the air. It fails in two ways: a leak in the tubing, which makes the system lose refrigerant, and a dirty or frozen coil, which usually has an airflow cause behind it.
That second failure is the one to rule out first. A coil that ices up because of a dirty filter or blocked vents needs those fixed, not a new coil.
Our freezing-up page covers the free checks. A coil replaced without a leak test or a filter check is a guess that costs $3,000.
Two related prices help frame a quote. An expansion valve (TXV), the small metering part at the coil, reported a median $1,900 (17 reports).
An outdoor unit and coil replaced together reported $7,850 (68 reports). In the Southeast, DOE says a split system must be a certified combination meeting the regional standard (DOE 2023 standards FAQ), so ask whether the new coil and your existing outdoor unit are a certified match.
Evaporator coil replacement: the parts this job touches
1ThermostatThe wall control. It tells the system when to run.
2Air filterCatches dust before the air reaches the blower and coil.
3Indoor unit: blower and evaporator coil on this pageThe blower moves the air; the cold coil cools it.
4Ducts and ventsCarry cooled air to the rooms and bring return air back.
5Condensate drain line, pan and float switch on this pageCarries off the water the coil pulls out of the air.
6Outdoor unit: compressor, fan and condenser coilMoves the heat from your house to the outdoors.
7Breaker panel and outdoor disconnectThe power feed to the system, and its local shut-off.
8Refrigerant lines on this pageTwo copper lines that link the indoor coil to the outdoor unit.
Simplified drawing, not to scale. Real systems vary: the indoor unit can sit in an attic or closet, the ducts can run in the attic or under the floor. Original illustration, not a photo.
Doing the math
At $3,000, a coil is 25 percent of the Florida median full-system price ($12,000). It is also 38 percent of an outdoor-unit-and-coil replacement ($7,850).
On a system under 10 years old, the coil alone is the sensible fix. Past ENERGY STAR's 10-year mark (ENERGY STAR replacement guide), the second half of the system is aging too, so price both options.
Evaporator coil replacement against a new full system in Florida
Evaporator coil replacement
$3,000
median, 57 reports (U.S.-wide)
vs
New full system, Florida homeowners
$12,000
median, 55 reports
Source: HVACPro analysis of 55 homeowner-reported quotes and invoices in public Reddit posts, 2025-01-01 to 2026-09-29 (Florida full system); repair figure is U.S.-wide (HVACPro analysis of 57 homeowner-reported quotes and invoices in public Reddit posts, 2025-01-01 to 2026-09-29). Median reported price, U.S. dollars.
3DIY troubleshooting guides for this job
820HVAC businesses with an active Florida license in the ring
Noneutility rebate programs listed for this job
Check these yourself first
Clean airflow first. A frozen coil has a free cause more often than a failed coil: the filter, closed or blocked vents, and a thermostat set very low. If ice returns with all three ruled out, it is a pro call.
HVACPro is a free referral service for homeowners, not an HVAC company. We don't do the work, and we may be paid by the contractor. Check any contractor's license on the state's lookup before you hire.
Pick your city
Every city below has an A-to-Z list of the businesses with an active Florida HVAC license there. The number on each chip is that count.
A coil replacement earns no utility rebate in our data. Programs on file pay for full equipment replacement, so they matter only if the quote pushes you to a new system.
Get a licensed pro
Need a licensed HVAC pro in the Tampa Bay outer ring? Call and we'll connect you with a licensed local contractor.
HVACPro is a free referral service for homeowners, not an HVAC company. We don't do the work, and we may be paid by the contractor. Check any contractor's license on the state's lookup before you hire.
How much does an evaporator coil replacement cost?
Homeowners reported a median $3,000 (57 reports), middle half $2,000 to $4,500.
Is it worth replacing just the coil?
It is 25 percent of a Florida full system by reported medians. On a system under 10 years old that usually favors the coil. Past 10 years, ENERGY STAR suggests considering replacement (ENERGY STAR replacement guide), so ask for both quotes.
Why does my indoor coil keep freezing?
Too little warm air across the coil or too little refrigerant in it. A dirty filter and blocked vents are the free causes. If those are clear and ice returns, a leak or a failed blower is likely.
These questions come from the topic clusters below in our research on 2,095 mined questions (Compressor / condenser / coil / motor failures (pro repair): 239; Repair / service cost and quotes: 23; AC freezing up / iced coil: 31). The wording and answers are ours; we do not republish anyone's post.
$3,000
Evaporator coil replacement: median reported price, from 57 homeowner reports
HVACPro analysis of 57 homeowner-reported quotes and invoices in public Reddit posts, 2025-01-01 to 2026-09-29.