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Professional AC Repair Services in Largo, FL

Mason Air Conditioning & Heating

Rated 4.9 out of 367 reviews

Largo, FL, is a vibrant coastal city known for its beautiful parks, thriving businesses, and warm Florida weather. With high humidity, frequent storms, and scorching summer heat, a reliable air conditioning system is essential. If your AC isn’t keeping up, Mason Air Conditioning offers fast and professional AC repair services in Largo, FL, including same-day service to restore comfort quickly.

Whether you live in a single-family home, a condo, or manage a commercial space, our skilled HVAC technicians are ready to provide the expert care your cooling system needs.

Our AC Repair Services in Largo, FL

Largo’s proximity to the Gulf Coast and humid climate can lead to excessive wear on air conditioning systems. Our trained technicians handle a wide range of AC issues, including:

  • Comprehensive System Diagnostics – Identifying efficiency issues, weak airflow, and performance problems.
  • Refrigerant Leak Repairs and Recharge – Ensuring your AC maintains proper cooling levels, especially in homes with older units or high sun exposure.
  • Thermostat Repairs and Smart Upgrades – Upgrading your system for better energy savings and personalized climate control.
  • Evaporator and Condenser Coil Cleaning – Removing salt, dust, and moisture buildup to optimize system efficiency.
  • Ductwork Inspection and Repairs – Sealing leaks and optimizing airflow for consistent cooling in multi-room homes.
  • Emergency AC Repairs – Available 24/7 to restore cooling quickly, especially during Florida’s peak heat season.

With our certified HVAC professionals, we guarantee quick, effective repairs to keep your AC running at peak performance.

Signs Your AC Needs Repair in Largo, FL

Largo’s coastal air, tropical storms, and long cooling seasons can cause common AC problems. If you notice any of these warning signs, your system may need repair:

  • Inconsistent Cooling – If some rooms are warmer than others, your home may have duct leaks, airflow restrictions, or an undersized AC unit.
  • Strange Noises – Rattling, buzzing, or grinding sounds may indicate loose components, worn-out motors, or airflow blockages.
  • Excess Indoor Humidity – If your AC isn’t effectively reducing humidity, you may experience sticky air, mold growth, or musty smells.
  • Frequent Cycling – If your AC constantly turns on and off, it may be struggling due to a faulty thermostat, clogged filters, or refrigerant issues.
  • High Energy Bills – If your electricity costs are rising without reason, your AC could be working harder due to blocked airflow, dirty coils, or refrigerant leaks.

Taking care of these issues early ensures efficient cooling, lower energy bills, and fewer costly repairs.

Common AC Problems in Largo, FL

Largo’s mix of coastal breezes, suburban developments, and seasonal weather changes creates specific AC challenges. Some of the most frequent issues include:

  • Salt Corrosion – Homes near the water experience faster wear and tear on AC components due to salt exposure.
  • Clogged Air Filters – Pollen, dust, and debris from nearby parks and natural areas can clog filters quickly, reducing airflow.
  • Refrigerant Leaks – If your AC runs continuously but doesn’t cool effectively, a refrigerant leak may be the cause.
  • Ductwork Leaks and Airflow Imbalances – Many homes in Largo have aging or improperly sealed ductwork, leading to energy loss and inconsistent temperatures.
  • Storm-Related Electrical DamageThunderstorms and power surges can damage AC electrical components, requiring professional repairs.
  • Frozen Coils – If airflow is restricted due to dirty filters, refrigerant problems, or blocked vents, evaporator coils can freeze, causing system inefficiency.

Routine AC maintenance and timely repairs help prevent these issues, ensuring year-round comfort and system longevity.

Why Choose Mason Air Conditioning for AC Repairs in Largo?

  • Same-Day and Emergency Repairs – Fast, professional service to restore comfort ASAP.
  • Local HVAC Experts – We understand Largo’s climate challenges and how they impact AC performance.
  • Upfront Pricing – No hidden fees—just honest, transparent service.
  • Trusted by Homeowners and Businesses – Our reputation for quality work makes us the go-to HVAC company in Largo.
  • Preventative Maintenance Plans – Helping to extend your AC’s lifespan and reduce long-term repair costs.

    Frequently Asked Questions (FAQs)

    How often should I schedule AC maintenance in Largo?

    We recommend scheduling annual AC maintenance, preferably before summer, to ensure efficiency and prevent breakdowns.

    Why is my AC running but not cooling my home?

    Common causes include low refrigerant, clogged air filters, faulty thermostats, or compressor issues. A professional diagnosis can determine the exact problem.

    How does Largo’s coastal air affect my AC system?

    Salt air exposure can corrode AC components faster, leading to reduced efficiency and early system failure. Regular maintenance and protective coatings help prevent damage.

    What should I do if my AC suddenly stops working?

    Check your thermostat settings and circuit breaker. If the issue persists, call Mason Air Conditioning for emergency AC repair services.

    Do you offer emergency AC repair services in Largo?

    Yes, we provide same-day and emergency repair services to keep your home comfortable year-round.

    Call Now for Reliable AC Repair in Largo, FL

    If your AC isn’t keeping up with the Florida heat, don’t wait—get it fixed fast! Call Mason Air Conditioning at 727-433-9853 for expert AC repair services in Largo, FL.

Recent Jobs and Reviews in Largo, FL

Rated 4.9 out of 5 stars based on 28 customer reviews

Customers say: The provided content describes the overall sentiment of the reviews as positive. The reviewers consistently express satisfaction with the services provided by Mason Air Conditioning, highlighting their professionalism, knowledge, and excellent customer service. Many reviewers mention specific technicians or employees by name and express gratitude for their help. The positive reviews often mention the quality of the work performed, with reviewers mentioning specific issues that were resolved or improvements made to their HVAC systems. Additionally, the reviewers appreciate the prompt and efficient service, with many mentioning that technicians arrived on time and completed the work in a timely manner. The positive sentiment is further reinforced by reviewers who mention the friendly and courteous nature of the staff, as well as the transparency in pricing and the lack of pushy sales tactics. Overall, the reviews convey a sense of trust and satisfaction with Mason Air Conditioning, with many customers indicating that they would recommend the company to others.

Job Locations and Reviews

Hunter B.
Hunter B. Checked in
Inspected accessible equipment and found no fault. Need to schedule return with extension ladder to access roof and ensure system properly operating, fastened and isolated from roof.
Largo, FL 33771
renfroejames00@gmail.com
renfroejames00@gmail.com Checked in
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Largo, FL 33773
renfroejames00@gmail.com
renfroejames00@gmail.com Checked in
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Largo, FL 33770
renfroejames00@gmail.com
renfroejames00@gmail.com Checked in
James found bad PCB board in condenser. System is not communicating with air handler. Offered surge protection but client stated they are still paying off system and previous work I just quoted and they had performed.
Largo, FL 33771
Review
Great service today. Joshua S. was the service technician that came to install my thermostat. He was very personable, professional, and knowledgeable. I essentially purchased the Mason service contract today because Joshua was excellent and represents the company well! Thanks Joshua!
Diana - Largo, FL 33771
Aaron K.
Aaron K. Checked in
Looked over a system and came up with options for client to replace system. System is 20 years old and looking for something that is gonna be energy efficient and qualify for energy rebates. Client getting one other estimate tomorrow. Told client I would follow up with them tomorrow after 3 PM to go over any questions or other concerns they may have.
Largo, FL 33773
Hunter B.
Hunter B. Checked in
Service complete. Client requests installation of EcoBee thermostat she purchased. Confirmed equipment and wiring, provided estimate for installation fee with enrollment in maintenance plan. Client accepted. EcoBee thermostat installed and programmed. System reactivated normally. Balance for service collected via cc. No further action necessary.
Largo, FL 33771
Aaron K.
Aaron K. Checked in
Originally here to do an AC maintenance, however, upon arrival system not working properly. Thermostat set to 76° and only registering 79° in home. Check refrigerant levels and found very high head pressure and low suction pressure. Getting a 7° differential on each side of the filter dryer, which indicates a restricted filter dryer. Filter dryers Get restricted with noncondensibles such as moisture and air that may get into the refrigeration system. This indicates that there is most likely a leak somewhere in system.
Largo, FL 33774
Hunter B.
Hunter B. Checked in
Came out for customer concerned about their electric bill going up we installed the machine about two years ago upon arrival found head pressure was really high. Let out some refrigerant and the machine went back down to normal. Told the customer to give it a week to see how it runs and if nothing changes to give us a call back
Largo, FL 33778
Kevin@masonairconditioning.com
Kevin@masonairconditioning.com Checked in
3 Ton Goodman 13.4 SEER2 Heat Pump Package unit - Hurricane pad - Hurricane straps - Locking caps - Thermostat - taxes, labor, & permit - 5 kw Electric heater - 10 year part warranty - 1 year labor warranty
Largo, FL 33771
Jason@masonairconditionng.com
Jason@masonairconditionng.com Checked in
2 Ton Carrier 15.2 SEER2 Straight Cool - Hurricane Pad - Hurricane straps - Locking caps - Thermostat - Electric heater - Float switch - 10 year part warranty - 1 year labor warranty
Largo, FL 33773
Aaron K.
Aaron K. Checked in
Gave client estimate to install a two zone mini split system for back rooms. Client waiting on finances and will call us when ready to move forward.
Largo, FL 33773
Aaron K.
Aaron K. Checked in
Provided estimate to put a two zone mini split in offices. Client is getting three estimates and will get back to us. Sent over clients information to greenlight electric so that they can give estimate on running electrical as well.
Largo, FL 33774
Hunter B.
Hunter B. Checked in
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Largo, FL 33774
Aaron K.
Aaron K. Checked in
No cooling, did a complete evaluation of ACC system. Found evaporator coil freezing up. Checked refrigerant pressures. Getting very low suction pressure with a high head pressure. TXV is restricted, also capillary tubes on evaporator coil are rubbing against metal and are very corroded. Gave client options to repair system, however, recommended replacing system due to condition and cost of repairs. Client decided to replace system at this time. We are installing new packaged heat pump system on Wednesday, July 2. Client paid $2637 down and finance $6000 through upgrade.
Largo, FL 33771
renfroejames00@gmail.com
renfroejames00@gmail.com Checked in
Arrived to find (2) systems in home Turned both to cool to find downstairs with decent temp split Upstairs unit has a bad temp split and checked Freon pressures to find additive dye injected into system which I do not recommend due to possibility of gumming up valves and metering devices. Found upstairs system low on Freon and is reasoning for system over working. Found leak in evaporator coil and recommend replacement . Downstairs system is 20 years of age and do not recommend putting money into system if breaks down.
Largo, FL 33774
Aaron K.
Aaron K. Checked in
No cooling, found restriction in evaporator coil/metering device. Keep client options for repairs, however, system is 11 years old and recommend replacing due to age and cost of repairs. Client decided to replace system at this time. We are installing on Monday, June 30. Client got approved for financing through turns financing company.
Largo, FL 33773
Hunter B.
Hunter B. Checked in
Came out to a customer‘s property where the tenant lives the tenant was not home. The tenant said he was hearing a strange noise coming from the AC unit. The only noise I hear is coming from any AC unit that is strange is the neighbors across the way the current AC unit in the house that he lives in is not making any strange noises. I took a full video of it Just in case Debbie is aware and would like to proceed with a membership for future maintenance
Largo, FL 33771
Hunter B.
Hunter B. Checked in
Came out for system estimate upon arrival. Customer already had three other invoices wanting to get us quoted at 7900 need to get with James for model and serial number of unit for customer.
Largo, FL 33773
renfroejames00@gmail.com
renfroejames00@gmail.com Checked in
Arrived to find water beading off bottom of air handler Checked static pressures Freon pressures coil level drain pitch assured unclogged lines. I am assuming that the system had a clogged line or froze up air handler bottom was saturated with water and insulation on bottom has lost its r values and needs replaced.
Largo, FL 33778
Aaron K.
Aaron K. Checked in
System not bringing home down to desire temperature. Client had thermostat off and just turned the thermostat on this morning. Explain to client that it could take a while to cool the home down to temperature if thermostat has been off for a period of time. Also noticed that all air filters are plugged, which could’ve been causing system to freeze up overnight. Also, there is no attic insulation. Explained to client that home will take a lot longer to cool down to temperature with no insulation in attic as well as an increase in her electrical bill. Replaced filters that customer supplied, did not have filter for the main hallway return. She said she will go out and get one today. Advise client to see how system operates over the next few days. Everything working fine while I was there. Client would like service manager to come out and evaluate system as well.
Largo, FL 33774
Aaron K.
Aaron K. Checked in
No cool, client says it wasn’t getting below 90° at home. Upon arrival thermostat was off. Turn thermostat to cool and cycled AC system. Everything seemed to be working. OK did a complete evaluation of a C system. Checked the temperatures and pressures. Everything within manufacture specs. Did notice that the compressor had high start up amps. Recommended installing a hard star kit in signing up for membership. Client declined recommendations at this time. System is up and running and cooling at this time.
Largo, FL 33774
Justin@masonairconditioning.com
Justin@masonairconditioning.com Checked in
Task Includes -Installation of new 24x12x1 return air grill -Relinning the bottom return with duct board -Installation of whole home air purifier
Largo, FL 33771
Aaron K.
Aaron K. Checked in
Client getting condensation issues from bathroom vent. Found a huge hole in ductwork up in attic. Duck work is very old and outdated. Gave client options for repairing ductwork, replacing entire duct system, and replacing 11-year-old AC system. Client will review estimates and get back to us. Got client preapproved for financing. Client needs to discuss which option they want to do with spouse.
Largo, FL 33774
Hunter B.
Hunter B. Checked in
Came out to tom browns house upon arrival found nothing wrong with machine other then air handler is sweating. Customers machine in garage is leaking hot air in through cracks around air handler
Largo, FL 33778
Hunter B.
Hunter B. Checked in
Came out for maintenance. Customer just moved in home and had performance install the machine and ductwork. Everything is working. Good temp is at 21. Customer has no concerns before leaving machine is working operational
Largo, FL 33773
Review
Hunter was very pleasant, experienced and was able to diagnose the issue and have it corrected in no time. We are back to having normal a/c now. I was relieved to be able to get scheduled right away too.
Pamela - Largo, FL 33771
Review
Easy and knowledgeable
Barb - Largo, FL 33774
Review
Aaron quickly made an initial check of my Carrier system and agreed with my suspicion that it needed a new “run” capacitor. He made the necessary repair, got the system running, and completely checked it out so it is now running properly.
David - Largo, FL 33774
Review
Amazing company great guys and quality workmanship
Jimmy - Largo, FL 33773
Review
Great service. great family company.
Zach - Largo, FL 33771
Review
Very courteous, prompt communication, they sent a pic and description of technician coming to quote new unit. Technician called prior to arrival. Great information and clear estimate!
Jerry - Largo, FL 33773
Review
Mike and Jack were a pleasure to meet. They were extremely efficient and friendly! As frustrating as it can be to handle household issues, with Mason Air it has been so nice and easy to work with!
Clint - Largo, FL 33773
Review
Came right out after the hurricane and replaced a motherboard that was damaged, no questions asked
Tim - Largo, FL 33778
Review
I’ve had seven different heating and air conditioning companies out to inspect my aging system, and evaluate the potential of replacing it. James is the one that I most trust. He was so patient to answer all of my detailed questions. All of his answers were congruent with my prior knowledge (background in automotive refrigeration). Some of the other agencies that have been to my house have given me patently false, even opposite, information on factual items. James was willing to go into the weeds with me, and (prior to work actually being done) has so far earned my trust. Also, no pressure, but also straight up regarding telling me how it is.
Ed - Largo, FL 33774
Response from Mason Air Conditioning & Heating:

Thank you so much for your 5-star review! We will share this with the team to let them know to keep up the amazing work!

Review
Happy that the issue was diagnosed correctly and repaired. Mike was very friendly, professional and very patient with me explaining everything and answering my questions, as was his co-worker (Matt?, sry I'm terrible w names)
Pamela - Largo, FL 33771
Review
We had a whole new unit inside and out! Michael and Jake did a great job!!
Laurie - Largo, FL 33770
Response from Mason Air Conditioning & Heating:

We count ourselves lucky for customers like you and look forward to working with you again in the future!

Review
Excellent service
Laurie - Largo, FL 33770
Response from Mason Air Conditioning & Heating:

We’re so happy you loved your experience and can’t wait to have you back for your next service appointment.

Review
Great seevice
Amira - Largo, FL 33778
Response from Mason Air Conditioning & Heating:

Your kind words mean a lot to us. Thanks for the positive feedback.

Review
The guys at Mason Air conditioner awesome friendly fast service quality work
Bob - Largo, FL 33778
Review
James, the technician could’ve not been more personable. He checked everything out. He did a great job. I would highly recommend him.
James - Largo, FL 33777
Response from Mason Air Conditioning & Heating:

Your kind words about our heating and cooling service mean a lot to us. Thanks for leaving such a positive review!

Review
Brad is always kind and professional. He always tells us what we NEED to get done, and also lays out other options - good, better, best. I always trust his recommendation and he never pressures!
Bob - Largo, FL 33770
Response from Mason Air Conditioning & Heating:

We thank you for sharing your positive experience. It made our day.

Review
Excellent Service
Kimberly - Largo, FL 33771
Response from Mason Air Conditioning & Heating:

Thank you so much for taking the time to leave us a 5-star review!

Review
Very happy with the quick and efficient service. The technician arrived on time, performed a thorough maintenance and answered all of my questions. Very reasonable service fee also. Will definitely use again.
Stephanie - Largo, FL 33774
Response from Mason Air Conditioning & Heating:

We count ourselves lucky for customers like you and look forward to working with you again in the future!

Review
Even on my worst day of everything that can go wrong, Sally in the office & Brad the technician can turn your frown into a smile! Every scheduled maintenance call/ or unexpected needs, I review and state I'm so happy to have found this company. Their professionalism, quality of service and attributes to much to mention, they'll be my tried & true company as long as I have a/c needs. Thank you Brad & Sally!
P.S. - Largo, FL 33771
Review
They were on time and did a professional job
Richard Riley - Largo, FL 33774
Response from Mason Air Conditioning & Heating:

We are so grateful for your 5-star review.

Review
Excellent knowledge of the job description and needed
Richard Riley - Largo, FL 33774
Response from Mason Air Conditioning & Heating:

Thanks for sharing your rating with us and the community.

Review
Brad was great. First ac technician that has ever explained how ac systems work to me and he also explained how to use the thermostat properly. They came out the same day I called and were here within 4 (or less) hours. Great service.
Nina - Largo, FL 33770
Response from Mason Air Conditioning & Heating:

Thanks for leaving us such a wonderful review. We are glad that you loved our services, our dedicated staff will be pleased to learn of your high praise.

Review
Responded right away and fixed the issues.
Daniel - Largo, FL 33778
Response from Mason Air Conditioning & Heating:

Thank you so much for this great 5-star review. We really appreciate your business.

Review
We discovered our was air was not working at all once we returned from out of town last night. We called Mason Air this am after reviewing their reviews. The young lady scheduled Tory for this afternoon! Communication was excellent, Tory arrived within the exact timeframe we were told, he found the problem and fixed it right away! So thankful for the great business practices and knowledge of Mason Air!
Julie - Largo, FL 33774
Response from Mason Air Conditioning & Heating:

Thank you so much for taking the time to leave an excellent rating. We really appreciate your business.

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