How much does it cost to unclog HVAC?

Author: Scot Corkery  |  Last update: Saturday, January 31, 2026

Typical unclog ac drain line costs can range anywhere from $75-$250. In the case that the evaporator coil needs replacing, you are would pay between $400 to $950.

How much does it cost to unclog a HVAC drain?

Clogs in the condensate drain line cause moisture to back up in the air conditioner, which can be damaging. The repair cost to have the drain line flushed runs between $75 to $250. If replacement is needed because the condensate drain line is damaged, a new condensate drain line is usually only around $20.

How do I unclog my HVAC system?

How to Unclog Your AC Drain Lines in 9 Steps
  1. Turn Off Your Air Conditioner. ...
  2. Locate the Drain Line Pipe. ...
  3. Remove the Cap From the Pipe. ...
  4. Inspect the Drain Line Pipe. ...
  5. Unclog the Drain Line Pipe. ...
  6. Pour in Vinegar. ...
  7. Use a Wet/Dry Vacuum Cleaner. ...
  8. Reconnect the Cap to the Drain Line Pipe.

How much does it cost to flush an HVAC system?

According to the Environmental Protection Agency, the average cost for properly cleaning an entire air duct system in an average-sized home ranges from $450 to $1,000. However, there are several factors that affect the cost and time estimates of air duct cleaning: the type of ductwork. HVAC system size.

How do you tell if HVAC drain line is clogged?

A clogged AC drain line symptoms include:
  1. Musty, moldy smell near your indoor unit or in air from the registers/vents.
  2. Standing water near the indoor unit.
  3. Water damage in areas near the indoor unit.
  4. AC system is not cooling your home.
  5. AC system shuts down or doesn't turn on.

Pressure Switch Not Closing Due to Drainage Problem On 90% Furnace EP108

Who to call for a clogged AC drain line?

Call Service Champions for Emergency AC Repair

We provide residential AC repair in San Jose, Sacramento, and other parts of Northern California. Call 833-600-0991 or schedule your visit online whether you need a condensate drain line unclogged, an AC thermostat repair, or an air conditioner replaced.

Can a clogged drain cause AC to stop working?

However, when your AC drain line becomes blocked and is unable to properly drain moisture, your AC will likely stop working and you'll need to call Wagner for AC repair.

Can I clean air ducts myself?

Turn the vacuum on to capture as much dust as possible that the fan is pushing through the ductwork. For how to clean AC vents, when finished vacuuming, use your brush to remove any built-up dust in the register. Reach down into the duct as far as you can with the microfiber cloth and wipe the interior clean.

What is the most expensive part of an HVAC system?

The compressor is the most expensive component to replace in an AC unit, and it can cost up to $4,000. It's expensive for two major reasons. First, it's responsible for circulating the refrigerant between the evaporator and condenser coils. Secondly, it's a highly complex equipment with intricate details.

How much does Stanley Steemer air duct cleaning cost?

The offer price is most likely per vent pricing and does not factor in the cost of the entire cleaning. While it may seem like a money-saving deal, the final price tag will probably be closer to that $450-$1000 range.

Why is my HVAC drain not draining?

The most common reason for a blockage is dirt and debris buildup inside the pipe. Another possibility is a clog in the drain line caused by dust or debris from the condensate. You can try flushing the line with bleach or sucking the clog using a wet/dry vacuum to unclog it.

Is bleach or vinegar better for an AC drain line?

All right, so in summary, don't use bleach; use vinegar. That helps with any mildew growth—keeps you running clean. It's not going to actually clean your A/C drain, but it can prevent some backups.

What does a clogged HVAC filter look like?

You can usually tell a dirty HVAC filter needs to be changed just by looking at it. The filter will be gray or black and bits of debris will be visible. But you may notice other changes that indicate the furnace is not operating properly.

How do you unclog an HVAC system?

Different Ways to Unclog Drain Lines in Your AC
  1. Plunger Method. ...
  2. Use a Wet/Dry Vacuum. ...
  3. Pour One Cup of Vinegar Down the Drain Line. ...
  4. Pour One Cup of Bleach Down the Drain Line. ...
  5. Blow Air Through the Line. ...
  6. Flush Clean Water Through It. ...
  7. Use Chemical Drain Cleaners. ...
  8. Use an Electric Snake.

How much does AC cleaning cost?

The AC coil cleaning cost is around $100 to $400 as of 2024, according to Homeguide (for an evaporator coil), and up to $700 to remove and clean the coil. Cleaning the condenser coil costs $75 to $230. ¹ However, there are many ways paying these costs can save you money.

How much does it cost to unclog?

Plumber Drain Snaking Costs

Simple sink, shower, or toilet clogs – $100 to $250 per drain. Kitchen sink or laundry drain cleanout – $150 to $275 average cost. Main sewer line augering – $200 to $500 per cleaning. Extensive sewervideo inspection & repairs – $400 to $1,000+

How much should I pay for a new HVAC system?

An HVAC replacement cost is $7,500 on average. This range could be as low as $5,000 or as high as $12,500, depending on the type and size of your unit, the brand, and labor costs. Your overall cost for a new HVAC unit could reach $22,000 if you add new ductwork and additional features like a HEPA filtration system.

What is the most expensive repair on an air conditioner?

Faulty Compressor

However, if its coils are dirty, it will experience additional strain, which can cause it to overheat or break down. Replacing the compressor or its coils is one of the most time-consuming and expensive HVAC repairs. You can expect to spend anywhere from $1,000 to $2,000 to install a new compressor.

Is Stanley Steemer air duct cleaning worth it?

Clean ducts ensure smoother airflow, reducing energy costs. Extended System Life: Regular cleaning minimizes wear and tear on your HVAC system, potentially saving you substantial money on future repairs or the need for early replacement.

What does duct cleaning cost?

For residential properties, air duct cleaning costs typically range from $300 to $500. Commercial properties, due to their larger size and more complex HVAC systems, can expect to pay anywhere from $450 to $1,000 or more.

Is it better to clean ducts or dirty ducts?

Even if your ducts are dirty, cleaning them probably won't provide any measurable benefits. In fact, the little independent research performed on duct cleaning indicates that the process stirs up so much dust that it creates a bigger problem than it solves.

How to tell if a condensate line is clogged?

One of the most obvious signs is a puddle of water in your AC's drain pan, which proves the water isn't draining as it should. Other signs include: Standing water near your air conditioner's condenser unit. A moldy smell around the drain or from your system's vents and registers.

How do I know if my AC has a blockage?

AC is Producing Warm Air

One of the surefire signs of a clogged refrigerant line is if you notice the AC producing warm air when you expect cold air. The warm air is caused by a problem with the proper circulation of the refrigerant fluid, which is instrumental in cooling the air.

Why is AC not blowing cold air?

First, check your filters and coils for dirt and debris that may be impeding airflow. Once you've cleaned the filters and coils, run the air conditioner with just the fan so that the ice accumulation can melt off. If the AC still doesn't blow cold air, it could be that refrigerant levels are too low.

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