
Serving Hixson, TN and surrounding areas
Approved
Free estimates
Emergency services offered
Small jobs welcome
"Chris did an amazing job came out on time and serviced my unit and was very professional"





+18


Serving Hixson, TN and surrounding areas
Approved
Free estimates
Emergency services offered
Small jobs welcome
"Chris did an amazing job came out on time and serviced my unit and was very professional"





+18

Serving Hixson, TN and surrounding areas
Approved
In business since 2024
Emergency services offered
Warranties offered
"Very fast response and affordable service with no surprises, I will be hiring this veteran-owned business again when the next HVAC surprise arises!"

Serving Hixson, TN and surrounding areas
Approved
In business since 2010
Emergency services offered
Warranties offered
"Ray showed up on time. He was professional and he took pictures to show me the problems with my HVAC system. He did the work, and our AC started working again. Great job!"



Serving Hixson, TN and surrounding areas
Approved
Super Service Award Winner
In business since 1992
Emergency services offered
Warranties offered
"Replaced trap and added a vent to Kitchen sink drain replaced and added a vent. Replaced 2 faucets in bathroom. Replaced drain and cleared drain for slow drain shower. He visited to evaluate promptly when I called. Showed up when he said he would. Stayed within the budget we agreed to. I would recommend Jim."

Serving Hixson, TN and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
DynaMech Heating, Cooling, Electrical & Plumbing is a full-service home and light commercial service provider proudly serving Cleveland, TN and the surrounding Southeast Tennessee area. We specialize in HVAC, electrical, and plumbing services, delivering reliable solutions backed by skilled technicians, transparent pricing, and responsive service.\n\nWhether you need air conditioning or heating repairs, electrical troubleshooting and installations, or plumbing diagnostics and water line work, our team is committed to completing every job safely, efficiently, and to the highest professional standards. We understand the importance of fast response times and clear communication, especially when service is needed urgently.



Serving Hixson, TN and surrounding areas
Approved
In business since 2018
Small jobs welcome
Credit card accepted
"This was both heating and air conditioning replacements. They came out for the service call on time and in a timely manner. My units had not been replaced since the home had been built in the 1970s so it was past time. Mr. Ball came out and gave me an estimate on both to repair and to replace my units and so with the information he provided we agreed to go ahead and replace feeling better at having more energy efficient units and warranty as well. I would highly recommend him and his team for any and all HVAC service anyone might need."

Serving Hixson, TN and surrounding areas
Approved
In business since 1989
Free estimates
Warranties offered
"They were professional, they went over everything with me and explained it clearly."





+1

Serving Hixson, TN and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"They cost just a bit more, but you'll be glad you did. Great company from contact to invoice and beyond. Technician communicated through all facets of the service and repair."





+6

Serving Hixson, TN and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"He's done an excellent job and we always listen to what he says! Very reasonable and very punctual!"


Serving Hixson, TN and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Credit card accepted
"We had multiple handyman items that needed attention. Jeff was responsive and gave a fair quote. The work was done expediently and we were extremely happy with the results. We had a new electronic deadbolt put in, several doors adjusted and a shower reclined. Well done gentlemen!"
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.
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