
Serving Casselberry, FL and surrounding areas
Approved
In business since 2014
Free estimates
Warranties offered
"Highly recommended from my side! Thanks a loooooooooot for installing an air condition system at the most efficient price."





+2


Serving Casselberry, FL and surrounding areas
Approved
In business since 2014
Free estimates
Warranties offered
"Highly recommended from my side! Thanks a loooooooooot for installing an air condition system at the most efficient price."





+2

Serving Casselberry, FL and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"I purchased a Deal, spoke with Ken, the owner, and he was flexible about my schedule changes (due to the tile job taking longer). Since a crew was running behind, he came himself to do the work late in the afternoon knowing that I needed the vent cleaning that day before we moved in. Ken did an amazingly through job of cleaning and disinfecting, and shared his knowledge about HVAC systems and duct routing the whole time. He analyzed our system capacity, checked the duct routing in the attic, and gave us options for improving our HVAC system in future when the existing equipment is ready for replacement. So not just a simple service - an informed future strategy! Can't say enough about how impressed we were with A Breath of Fresh Aire, we will definitely use their services again."





+16

Serving Casselberry, FL and surrounding areas
Approved
In business since 1994
Warranties offered
Credit card accepted
"I highly recommend to anyone in the Longwood or greater Orlando area Matthew Roberts Air Conditioning. They are an exceptional company that provides exemplary service. I recently had them install a new Trane air conditioning system and I was completely satisfied with the installation and service they provided. They are a family run business and you could tell they genuinely care about putting the customer first. Since replacing an air conditioning system is one of the biggest expenses homeowners face, I had several concerns going into the process and they made it a point to address all of my concerns and you could tell they wanted me to be happy at the end of the day. They didn’t try to upcharge me into anything I didn’t need as other companies did. My wife even commented that Luke Roberts didn’t seem like the other pushy salesmen we interviewed and was focused on doing what was needed. At the end of the day, I am thankful I trusted Matthew Roberts Air Conditioning with my new investment."

Serving Casselberry, FL and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"A manager from A1 came out Immediately and was able to diagnose and fix problem on the spot. Very professional, punctual, and at an exceptional reasonable cost. I definitely recommend Air 1 of Central Florida for all air and heating needs."





+3

Serving Casselberry, FL and surrounding areas
Approved
In business since 1988
Free estimates
Emergency services offered
"Carl was professional, answered my many many questions politely & to me so I understood.
I would hire this company again. I did sign a maintenance care for this air conditioner. We need it. We can't be without air & heat.
Special is worth fee. It will save us many dollars in future.
"





+26
Serving Casselberry, FL and surrounding areas
Approved
In business since 2012
Free estimates
Warranties offered
"Mario gave us the best price. And a better warranty than others. However more importantly to me was that he offered to go out and spend an hour taking pictures of everything that was wrong to show me since I did not live in the property exactly what needed to be repaired. No one else offered to do this. He also said let me see if I really have to replace the whole unit or if I can replace parts. After seeing the pictures there was no doubt the whole air conditioning unit needed to be replaced. That extra hour of time to go back and take all the pictures really won me over. This is customer service at its FINEST! Thank you Mario !"

Serving Casselberry, FL and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"They are the best a/c cooling in Florida and quick response time coming to fix my a/c. Excellent service"





+4

Serving Casselberry, FL and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
"Had service star Air & heating replace a 5 ton and 2.5 ton and two air handlers that had gone bad. Louis Ratti told me it would take his crew about 8 hours to completed the job from 9:am to 5pm. The crew got there on time and started to work right away. They were professional, courteous and proficient. There was no guessing to what they had to. They were good I say better than good. By 2:30pm they had both systems up and running and the work area clean and spotless. Not only that, I asked if they would connect my phone to both thermostat and with out hesitation they did it. I was very highly impressed. Thank you Louis for sending the right crew"





Serving Casselberry, FL and surrounding areas
Approved
In business since 2003
Emergency services offered
Warranties offered
"Service One has been wonderful to work with, both for our plumbing and air conditioning matters. Our A/C had 3 leaks in it, and Duke Energy failed to cover these damages despite the fact I had purchased a coverage plan with them. ServiceOne gave me a great quote and our technician Otto was super knowledgeable, personable and all around a great person whom we felt very confident with. I received another quote from Ferran that was nearly $1,000 more than what ServiceOne quoted, and for a unit that wasn't as efficient. The A/C is working great, they have a great warranty plan for it, and have always been very timely in returning calls in the past. Highly recommend them if you're looking for a good company that is trustworthy and will take their time to talk to you."





+2

Serving Casselberry, FL and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Emergency services offered
"This company is top notch. They did a two system retrofit in my home with 5 ton and 3 ton communicating Amana products. It started off with Wes the owner coming on a Saturday to have a look at the job and his recommendations and price. He really seemed like he knew what he was doing and was knowledgeable. Well it turned out to be true. The proposal was fair and he had the best price by far for this type of system. Then the actual install took place. The installers were prompt and the install was very clean looking. They were very careful in my house as they had to get one of the air handlers out and into the attic space on the second floor. When they were finished you wouldn't even know they were there, they left the place so clean. They showed me the work they had done and explained the thermostat settings to me. Overall I am 100% satisfied. Would highly recommend the Amana products and Wesley Whitson. The air conditioning itself is amazing as well. Quiet and comfortable."





+15
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
From average costs to expert advice, get all the answers you need to get your job done.

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