AC Flush Repair Labor Time Guide Free: Expert Insights

AC Flush Repair Labor Time Guide Free is your comprehensive resource for understanding AC flush repair costs, labor times, and essential guidance. CONDUCT.EDU.VN provides valuable insights and practical advice to help you navigate AC maintenance and repairs effectively. Explore our guide to learn about AC flush procedures, troubleshooting, and preventive measures, ensuring your system runs smoothly and efficiently with the help of industry best practices and expert tips.

1. Understanding AC Flush Repair

1.1. What is an AC Flush?

An AC flush is a maintenance procedure designed to clean the condensate drain line of an air conditioning system. Over time, mold, mildew, algae, and other debris can accumulate in the drain line, causing clogs that lead to water damage. The primary purpose of an AC flush is to remove these obstructions, ensuring that condensate water can flow freely and prevent overflows. This process typically involves using specialized equipment to force water or a cleaning solution through the drain line, dislodging any buildup.

1.2. Why is AC Flush Repair Necessary?

Regular AC flush repairs are essential for maintaining the efficiency and longevity of your air conditioning system. A clogged condensate drain line can lead to several problems, including:

Water Leaks: When the drain line is blocked, water can back up into the drain pan and overflow, potentially damaging ceilings, walls, and floors.
Mold and Mildew Growth: The standing water in the drain pan creates a breeding ground for mold and mildew, which can spread throughout your home and cause respiratory issues and allergic reactions.
Reduced Cooling Efficiency: A clogged drain line can cause the AC unit to work harder, reducing its cooling efficiency and increasing energy consumption.
System Damage: If the water overflows and reaches sensitive components of the AC unit, it can cause corrosion and other types of damage that require costly repairs.
Unpleasant Odors: Mold and mildew growth can produce musty or foul odors that permeate your home.

By performing regular AC flush repairs, you can prevent these issues and ensure that your air conditioning system operates at peak performance.

1.3. Common Signs You Need an AC Flush

Recognizing the signs that your AC system needs a flush can help you address the issue before it leads to more significant problems. Here are some common indicators:

Water Leaking from the Indoor Unit: This is one of the most obvious signs of a clogged drain line. If you notice water dripping or pooling around your indoor AC unit, it’s likely that the drain line is blocked.
Musty or Foul Odors: The presence of mold and mildew in the drain pan and drain line can produce unpleasant odors that are noticeable when the AC is running.
Standing Water in the Drain Pan: If you can see standing water in the drain pan, it indicates that the water is not draining properly.
Visible Mold or Algae: Check the drain line opening and the surrounding area for any visible signs of mold or algae growth.
AC Unit Shutting Off: Some AC units have a safety feature that automatically shuts off the system if the water level in the drain pan becomes too high.

Addressing these signs promptly can prevent further damage and maintain a healthy indoor environment.

1.4. Tools and Materials Required for AC Flush Repair

To perform an AC flush repair, you will need the following tools and materials:

Wet/Dry Vacuum: Used to clear debris and water from the drain line.
Distilled White Vinegar: A natural cleaning agent that helps to dissolve mold and mildew.
Hot Water: For flushing out the drain line after applying vinegar.
Drain Line Brush: A long, flexible brush designed to scrub the inside of the drain line.
Nitrogen Tank and Regulator: For safely forcing obstructions out of the drain line.
Compressed Air Tank: An alternative to nitrogen for clearing blockages.
Safety Glasses: To protect your eyes from splashes and debris.
Gloves: To protect your hands from exposure to mold, mildew, and cleaning solutions.
Drain Pan Tablets: To prevent future buildup in the drain pan.
Flashlight: To inspect the drain pan and drain line opening.

Having these tools and materials on hand will enable you to perform an effective AC flush repair.

Alt Text: AC condensate drain line with visible mold and algae buildup, indicating the need for a flush repair.

2. Step-by-Step Guide to Performing an AC Flush Repair

2.1. Safety Precautions

Before starting any AC repair, it’s essential to take the necessary safety precautions:

Turn Off the Power: Disconnect the power to the AC unit at the circuit breaker to prevent electrical shock.
Wear Protective Gear: Put on safety glasses and gloves to protect your eyes and hands.
Work in a Well-Ventilated Area: Ensure that the area around the AC unit is well-ventilated to avoid inhaling mold spores or chemical fumes.

2.2. Locating the Condensate Drain Line

The condensate drain line is typically a PVC pipe located near the indoor AC unit. It usually exits the unit and drains into a nearby floor drain, utility sink, or outside the house. Follow these steps to locate the drain line:

Identify the Indoor Unit: Find the indoor component of your AC system, usually located in the attic, basement, or a closet.
Look for a PVC Pipe: Trace the PVC pipe extending from the unit. This is the condensate drain line.
Check the Termination Point: Follow the drain line to its termination point, which could be a floor drain, sink, or an outdoor location.

2.3. Clearing the Drain Line Opening

Once you’ve located the drain line, the next step is to clear the opening:

Remove the Cap: If the drain line has a cap, remove it.
Inspect for Debris: Check for any visible debris, such as leaves, dirt, or algae, blocking the opening.
Use a Drain Line Brush: Insert the drain line brush into the opening and gently scrub the inside of the pipe to dislodge any buildup.

2.4. Using a Wet/Dry Vacuum

A wet/dry vacuum is an effective tool for clearing clogs in the drain line:

Set Up the Vacuum: Attach the hose of the wet/dry vacuum to the drain line opening.
Seal the Connection: Use duct tape or a rubber adapter to create a tight seal between the vacuum hose and the drain line.
Turn on the Vacuum: Turn on the vacuum and let it run for several minutes to suck out any debris or standing water in the drain line.
Check for Suction: Ensure that the vacuum is creating strong suction. If not, there may be a significant blockage that requires further attention.

2.5. Flushing with Vinegar and Hot Water

Vinegar and hot water can help dissolve mold and mildew buildup in the drain line:

Pour Vinegar into the Drain Line: Pour about 1/2 cup of distilled white vinegar into the drain line opening.
Let it Sit: Allow the vinegar to sit in the drain line for at least 30 minutes to break down the buildup.
Flush with Hot Water: After 30 minutes, pour hot water into the drain line to flush out the vinegar and any loosened debris.
Repeat if Necessary: If the drain line is still clogged, repeat the vinegar and hot water flush.

2.6. Using Compressed Air or Nitrogen

For stubborn clogs, compressed air or nitrogen can be used to force the blockage out:

Attach the Air Compressor: Connect the air compressor or nitrogen tank to the drain line opening using a rubber adapter.
Apply Short Bursts of Air: Apply short bursts of air into the drain line to dislodge the clog. Avoid using continuous high pressure, as this could damage the drain line.
Check the Drain Line Exit: Monitor the drain line exit point to see if any debris is being flushed out.

2.7. Cleaning the Drain Pan

The drain pan should also be cleaned to remove any standing water and debris:

Remove Standing Water: Use a wet/dry vacuum to remove any standing water in the drain pan.
Scrub the Drain Pan: Use a brush and a mild detergent to scrub the inside of the drain pan to remove any mold or mildew.
Rinse the Drain Pan: Rinse the drain pan with clean water and ensure that all soap residue is removed.

2.8. Preventing Future Clogs

To prevent future clogs, consider the following tips:

Use Drain Pan Tablets: Place drain pan tablets in the drain pan to prevent algae and mold growth.
Regular Vinegar Flush: Pour 1/4 cup of distilled white vinegar into the drain line every month to prevent buildup.
Schedule Professional Maintenance: Have your AC system professionally inspected and maintained at least once a year.

Alt Text: AC condensate drain pan with drain pan tablets, used for preventing algae and mold growth and maintaining a clear drain line.

3. AC Flush Repair Labor Time Estimates

3.1. Factors Influencing Labor Time

The labor time for an AC flush repair can vary depending on several factors:

Severity of the Clog: A minor clog that can be cleared with vinegar and hot water will take less time than a severe blockage that requires compressed air or nitrogen.
Accessibility of the Drain Line: If the drain line is easily accessible, the repair will be quicker than if it is located in a hard-to-reach area.
Condition of the Drain Line: A drain line that is old or damaged may require more careful handling, which can increase the labor time.
Technician’s Experience: An experienced HVAC technician can typically complete the repair more quickly than someone who is less experienced.

3.2. Average Labor Time for AC Flush Repair

The average labor time for an AC flush repair is typically between 30 minutes and 1.5 hours. Here’s a breakdown of the estimated time for different scenarios:

Minor Clog (Vinegar and Hot Water): 30 minutes to 1 hour
Moderate Clog (Wet/Dry Vacuum and Vinegar): 45 minutes to 1.25 hours
Severe Clog (Compressed Air or Nitrogen): 1 to 1.5 hours

3.3. Cost of Labor for AC Flush Repair

The cost of labor for an AC flush repair can vary depending on the HVAC technician’s hourly rate and the complexity of the job. On average, HVAC technicians charge between $75 and $150 per hour. Therefore, the labor cost for an AC flush repair can range from:

Minor Clog: $37.50 to $150
Moderate Clog: $56.25 to $187.50
Severe Clog: $75 to $225

3.4. Total Cost Estimate for AC Flush Repair

In addition to the labor cost, there may be additional expenses for materials, such as vinegar, drain pan tablets, or replacement parts. Here’s a breakdown of the total cost estimate for an AC flush repair:

Labor Cost: $37.50 to $225
Materials Cost: $10 to $30
Total Cost: $47.50 to $255

These estimates can help you budget for AC flush repairs and ensure that you are getting a fair price from your HVAC technician.

4. Troubleshooting Common AC Problems

4.1. AC Not Cooling

If your AC is running but not cooling your home effectively, there could be several potential issues:

Dirty Air Filter: A dirty air filter can restrict airflow and reduce cooling efficiency. Replace the air filter regularly, typically every 1-3 months.
Refrigerant Leak: If there is a refrigerant leak, the AC unit will not be able to cool properly. Contact a licensed HVAC technician to locate and repair the leak, and recharge the refrigerant. AC leak repair costs $200 to $1,500 to find and fix the leak and refill the Freon.
Frozen Evaporator Coil: A frozen evaporator coil can block airflow and prevent cooling. This is often caused by a dirty air filter or a refrigerant leak.
Dirty Condenser Coils: Dirty condenser coils can reduce the AC unit’s ability to dissipate heat. Clean the condenser coils regularly using a soft brush or a garden hose.
Blocked Condenser Fan: Ensure that the condenser fan is not blocked by debris, as this can prevent proper cooling.

4.2. AC Running Constantly

If your AC is running constantly without shutting off, it could be due to:

Thermostat Issues: Check the thermostat settings to ensure that it is set to the correct temperature and mode.
Dirty Air Filter: A dirty air filter can cause the AC unit to work harder and run longer.
Refrigerant Leak: A refrigerant leak can cause the AC unit to run constantly in an attempt to reach the set temperature.
Oversized AC Unit: If the AC unit is too large for your home, it may cool the space too quickly and then cycle on and off frequently.
Poor Insulation: Poor insulation can cause heat to leak into your home, forcing the AC unit to run longer to maintain the set temperature.

4.3. AC Short Cycling

Short cycling occurs when the AC unit turns on and off frequently, without completing a full cooling cycle. This can be caused by:

Dirty Air Filter: A dirty air filter can cause the AC unit to overheat and shut off prematurely.
Oversized AC Unit: An oversized AC unit may cool the space too quickly and then shut off, only to turn on again shortly after.
Refrigerant Issues: Both low and high refrigerant levels can cause short cycling.
Electrical Problems: Faulty wiring or a malfunctioning capacitor can cause the AC unit to cycle on and off rapidly. AC capacitor replacement costs $100 to $250 for the part and labor, depending on the type and brand.

4.4. AC Making Unusual Noises

Unusual noises coming from your AC unit can indicate a variety of problems:

Banging or Clanging: This could indicate loose or broken components, such as a fan blade or a compressor mount.
Hissing: A hissing sound often indicates a refrigerant leak.
Squealing: A squealing sound could be caused by a worn-out belt or a failing motor bearing.
Buzzing: A buzzing sound could indicate an electrical problem or a loose component.
Clicking: Clicking noises may be related to electrical components such as relays.

4.5. Water Leaking Indoors

As discussed earlier, water leaking from the indoor AC unit is often a sign of a clogged condensate drain line. Follow the steps outlined in Section 2 to clear the drain line and prevent water damage.

Alt Text: HVAC technician inspecting an air conditioner for potential issues such as refrigerant leaks, dirty coils, and electrical problems.

5. Preventive Maintenance Tips for AC Systems

5.1. Regular Air Filter Replacement

Replacing the air filter regularly is one of the most important preventive maintenance tasks for your AC system. A dirty air filter can restrict airflow, reduce cooling efficiency, and cause the AC unit to work harder. Replace the air filter every 1-3 months, or more often if you have pets or allergies.

5.2. Cleaning the Condenser Coils

The condenser coils are located in the outdoor unit and are responsible for dissipating heat. Over time, they can become covered in dirt, dust, and debris, which reduces their ability to transfer heat. Clean the condenser coils at least once a year, or more often if you live in a dusty or polluted area.

5.3. Inspecting and Cleaning the Drain Line

Regularly inspect and clean the condensate drain line to prevent clogs and water damage. Follow the steps outlined in Section 2 to flush the drain line with vinegar and hot water every month.

5.4. Checking the Refrigerant Levels

Low refrigerant levels can reduce cooling efficiency and cause the AC unit to work harder. Have a licensed HVAC technician check the refrigerant levels annually and add refrigerant if necessary. An air conditioner recharge costs $100 to $320 on average for AC units with R410A refrigerant or $180 to $600 for older AC units using R22 Freon.

5.5. Maintaining Clear Airflow Around the Outdoor Unit

Ensure that there is adequate airflow around the outdoor AC unit. Trim any vegetation that is growing too close to the unit, and remove any debris that could block airflow.

5.6. Scheduling Professional Maintenance

Schedule professional AC maintenance at least once a year. A licensed HVAC technician can inspect the system for potential problems, perform necessary maintenance tasks, and ensure that the AC unit is operating at peak efficiency. An AC tune-up costs $70 to $200 and prolongs the system’s lifespan.

6. Understanding AC Warranties

6.1. Types of AC Warranties

There are several types of AC warranties:

Manufacturer’s Warranty: This warranty is provided by the AC manufacturer and typically covers defects in materials and workmanship for a specified period, usually 5-10 years.
Labor Warranty: This warranty covers the cost of labor for repairs performed during the warranty period. Labor warranties are often shorter than manufacturer’s warranties, typically 1-2 years.
Extended Warranty: This is an optional warranty that you can purchase to extend the coverage of the manufacturer’s warranty.
Home Warranty: A home warranty is a service contract that covers the repair or replacement of many home systems and appliances, including the AC unit.

6.2. What AC Warranties Cover

AC warranties typically cover:

Defective Parts: If a component of the AC unit fails due to a manufacturing defect, the warranty will cover the cost of the replacement part.
Refrigerant Leaks: Some warranties cover the cost of repairing refrigerant leaks and recharging the refrigerant.
Labor Costs: Labor warranties cover the cost of labor for repairs performed during the warranty period.

6.3. What AC Warranties Don’t Cover

AC warranties typically don’t cover:

Normal Wear and Tear: Warranties don’t cover damage caused by normal wear and tear.
Improper Installation: If the AC unit was not installed properly, the warranty may be voided.
Lack of Maintenance: Failure to perform regular maintenance, such as replacing the air filter or cleaning the coils, can void the warranty.
Acts of God: Damage caused by natural disasters, such as floods or storms, is typically not covered.

6.4. How to File an AC Warranty Claim

To file an AC warranty claim:

Review the Warranty Document: Read the warranty document to understand the coverage and requirements.
Contact the HVAC Technician: Contact a licensed HVAC technician to diagnose the problem and determine if it is covered under warranty.
Gather Documentation: Collect all necessary documentation, such as the warranty document, proof of purchase, and maintenance records.
Contact the Warranty Provider: Contact the warranty provider to initiate the claim process.
Follow the Instructions: Follow the instructions provided by the warranty provider to submit the claim and schedule the repair.

Alt Text: An AC warranty document outlining the coverage, terms, and conditions, ensuring the homeowner understands their rights and responsibilities.

7. When to Call a Professional HVAC Technician

While some AC repairs can be performed by homeowners, it’s important to know when to call a professional HVAC technician:

Refrigerant Leaks: Refrigerant is a hazardous substance that requires specialized equipment and training to handle safely. If you suspect a refrigerant leak, contact a licensed HVAC technician immediately.
Electrical Problems: Electrical repairs can be dangerous and should only be performed by qualified professionals.
Compressor Issues: The compressor is the heart of the AC system, and repairs can be complex and costly. If you suspect a compressor problem, call a professional.
Major Component Replacements: Replacing major components, such as the evaporator coil or condenser, requires specialized knowledge and equipment.
Warranty Repairs: If your AC unit is under warranty, you may need to use an authorized HVAC technician to maintain the warranty coverage.

8. Cost to Repair vs. Replace AC

AC replacement costs $2,500 to $7,500, depending on the unit size (tons), SEER efficiency rating, and brand. Installing central air with new ductwork costs $6,000 to $12,000.

Consider replacing instead of repairing a central air conditioner if:

The AC is more than 10 years old.
The AC uses R-22 Freon.
The AC requires frequent repairs.
The repair cost is at least 50% of the cost of a new AC.
The repair cost multiplied by the system’s age in years exceeds $5,000.

9. AC Repair FAQs

9.1. How long does it take to repair an AC?

Repairing an AC takes as little as 1 hour or up to 8 hours, depending on which part requires fixing or replacing. Flushing the drain line or replacing a fuse typically takes less than one hour, while complex repairs like evaporator coil or compressor replacement may take a full day.

9.2. Do you tip an AC repair technician?

You don’t need to tip an AC repair technician unless they exceed your expectations. Consider tipping if the technician works in extreme heat or cold. AC repair techs appreciate it when homeowners offer drinks or allow the use of a bathroom in the home.

9.3. How long does an air conditioner last?

An air conditioner lasts 12 to 15 years on average if properly maintained. The AC unit’s lifespan depends on the quality, environment, and usage. Improperly sized air conditioners or units located in areas with extreme heat typically have a shorter lifespan.

9.4. Who fixes air conditioners?

A licensed HVAC technician fixes air conditioners, heat pumps, furnaces, and ductwork.

10. Getting AC Repair Quotes

Before hiring an AC repair service near you, be sure to:

Get quotes from at least three HVAC companies to compare.
Look for NATE-certified or ACCA-accredited technicians with experience installing and repairing air conditioners.
Confirm the technician is EPA Section 608 certified to handle refrigerants.
Read their reviews on HomeGuide and Google.
Select companies that are insured, bonded, and have been in business for 5+years.
Avoid companies that give over-the-phone repair estimates without visiting the home to diagnose the problem first.
Get a detailed estimate, contract, and warranty in writing before the work begins.
Never pay in full before the project starts. Follow a payment plan instead for work completed.
Be cautious of cheap AC repairs as they are often a sign of low-quality parts, unnecessary part replacements, or inexperienced HVAC technicians.

10.1. Questions to Ask AC Repair Services

How long have you been repairing air conditioners?
Are you NATE certified or ACCA accredited?
Are you EPA Section 608 certified to handle refrigerants?
Do you charge a diagnostic or service call fee? If yes, do you apply that fee to the repair cost?
Is the replacement part cost covered under warranty?
Are you certified to perform warranty repairs for my AC brand?
Should I repair my AC or replace it instead, and why?
How long will the repair take?
Are you licensed, insured, and bonded?
What does your warranty policy include?
What is your payment schedule?
Do you offer financing for larger repairs?

11. The Importance of Regular AC Maintenance

Regular AC maintenance is crucial for ensuring the longevity, efficiency, and reliability of your air conditioning system. Neglecting maintenance can lead to a variety of problems, including reduced cooling performance, increased energy consumption, costly repairs, and even premature system failure.

11.1. Benefits of Regular Maintenance

Improved Energy Efficiency: A well-maintained AC system operates more efficiently, which can lower your energy bills.
Extended System Lifespan: Regular maintenance can help extend the lifespan of your AC unit, saving you money on replacement costs.
Reduced Repair Costs: Identifying and addressing potential problems early can prevent costly repairs down the road.
Improved Indoor Air Quality: Regular maintenance includes cleaning or replacing air filters, which can improve indoor air quality by removing dust, pollen, and other allergens.
Enhanced Comfort: A properly maintained AC system provides consistent and reliable cooling, ensuring your home remains comfortable during hot weather.

11.2. Potential Consequences of Neglecting Maintenance

Increased Energy Bills: A poorly maintained AC system has to work harder to cool your home, resulting in higher energy bills.
Frequent Breakdowns: Neglecting maintenance can lead to frequent breakdowns and costly repairs.
Reduced Cooling Performance: A dirty or clogged AC system may not be able to cool your home effectively.
Shorter System Lifespan: Lack of maintenance can shorten the lifespan of your AC unit, requiring you to replace it sooner.
Health Issues: A dirty AC system can circulate dust, pollen, and other allergens throughout your home, potentially causing respiratory problems and allergic reactions.

12. AC Flush Repair and the Environment

12.1. Environmental Impact of Refrigerants

Refrigerants used in AC systems, such as R-22 and R-410A, can have a significant impact on the environment. R-22 is an ozone-depleting substance that contributes to the depletion of the Earth’s ozone layer. R-410A is a greenhouse gas that contributes to climate change.

12.2. Proper Handling of Refrigerants

It is important to handle refrigerants properly to minimize their environmental impact:

Use Licensed Technicians: Only licensed HVAC technicians should handle refrigerants.
Recover Refrigerant: When repairing or replacing an AC unit, the refrigerant should be recovered and recycled to prevent it from being released into the atmosphere.
Dispose of Refrigerant Properly: Refrigerant should be disposed of properly according to local regulations.

12.3. Energy-Efficient AC Systems

Consider upgrading to an energy-efficient AC system to reduce your carbon footprint and lower your energy bills. Look for AC units with a high SEER (Seasonal Energy Efficiency Ratio) rating.

By understanding the environmental impact of AC systems and taking steps to minimize it, you can help protect the planet and ensure a sustainable future.

13. Frequently Asked Questions (FAQs)

13.1. How often should I flush my AC drain line?

It is recommended to flush your AC drain line at least once a year, or more often if you notice signs of clogging.

13.2. Can I use bleach to clean my AC drain line?

While bleach can be effective at killing mold and algae, it can also corrode the drain line. It is better to use distilled white vinegar, which is a natural and safe cleaning agent.

13.3. What are drain pan tablets?

Drain pan tablets are slow-release tablets that contain chemicals that prevent the growth of algae and mold in the drain pan.

13.4. How much does it cost to replace an AC unit?

AC replacement costs $2,500 to $7,500, depending on the unit size (tons), SEER efficiency rating, and brand.

13.5. What is SEER rating?

SEER stands for Seasonal Energy Efficiency Ratio. It is a measure of the cooling efficiency of an AC unit. The higher the SEER rating, the more energy-efficient the AC unit is.

13.6. How do I know if my AC unit is properly sized for my home?

An HVAC technician can perform a load calculation to determine the appropriate size AC unit for your home based on factors such as square footage, insulation, and climate.

13.7. What is the difference between a central AC and a window AC unit?

A central AC unit cools the entire home using a system of ducts and vents. A window AC unit cools only a single room.

13.8. How long does an AC unit last?

An AC unit lasts 12 to 15 years on average if properly maintained.

13.9. What is the best temperature to set my thermostat in the summer?

The U.S. Department of Energy recommends setting your thermostat to 78°F (26°C) in the summer for optimal energy savings.

13.10. What are some signs that my AC unit needs to be replaced?

Signs that your AC unit needs to be replaced include frequent breakdowns, reduced cooling performance, increased energy bills, and a system that is more than 10 years old.

14. Additional Resources

For more information on AC maintenance and repair, check out these resources:

CONDUCT.EDU.VN: Visit our website for articles, guides, and expert advice on all aspects of AC maintenance and repair.
EPA (Environmental Protection Agency): The EPA provides information on energy-efficient AC systems and the environmental impact of refrigerants.
ACCA (Air Conditioning Contractors of America): ACCA is a professional organization for HVAC contractors that provides training and certification programs.
NATE (North American Technician Excellence): NATE is a certification program for HVAC technicians that ensures they have the knowledge and skills to perform quality work.

By taking the time to learn about AC maintenance and repair, you can ensure that your system operates efficiently and reliably for years to come. CONDUCT.EDU.VN is committed to providing you with the information and resources you need to make informed decisions about your AC system.

Are you facing difficulties in finding reliable guidance on AC flush repairs or confused about applying the correct procedures? Visit conduct.edu.vn today for detailed information and expert advice to ensure your AC system is running efficiently and effectively. Contact us at 100 Ethics Plaza, Guideline City, CA 90210, United States, or call us at Whatsapp: +1 (707) 555-1234. Let us help you maintain a comfortable and healthy environment.