Serving Chester, MA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Excellent service. They came the same day that I called. Quick and painless!"
+25
Serving Chester, MA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Rearranged his schedule to squeeze me in. Cleaned the a/c and found I was running way too low on refrigerant. Filled the line with a sealant to stop any small leak I may have had and topped off the system. House is an icebox once again. Friendly. Great attitude. Knew what he was doing. Would call again."
Serving Chester, MA and surrounding areas
Approved
In business since 2010
Free estimates
Customers say: True professional
"Still Services replaced my hot water tank. These people are amazing. Exceptional customer service. Quality of the work of the highest caliber. Matt and his team went above and beyond to ensure that I experienced maximum service with a minimum of inconvenience. I will call them for future plumbing needs and have already told several people about them."
Serving Chester, MA and surrounding areas
In business since 1989
Free estimates
Emergency services offered
"Dustbusters did an exceptional job. We had all vents and ducts cleaned, including dryer and bathroom vents. The techniques used were latest technology; the technicians were skilled and helpful. Process was completed in an efficient and super clean manner. Before and after photos from inside ducts demonstrated the "like new" result. If you have any concerns about your forced air system, give them a call. The air quality of your home will improve. We noticed a difference in both dust and breathing within one day. This service is first class in all respects. We will have them back in the future. We got a 10% veterans discount."
Serving Chester, MA and surrounding areas
In business since 2001
Free estimates
Warranties offered
"I had to have a yearly service on my unit"
Serving Chester, MA and surrounding areas
In business since 2020
Free estimates
Warranties offered
"An honest assessment of my unit. Very thorough in understanding the unit and possible issue. Works fast. Should give a solid fee for service call, not $40-50. But was happy to give him the $50. Also, was given no paperwork to detail what he found or did with measurements of heat and cold air?"
Serving Chester, MA and surrounding areas
In business since 1960
Emergency services offered
Warranties offered
"The technician sent to our house was professional and polite. Diogo explained what needed to be done and why and the approximate cost. He also gave us other options on how our central air could be fixed and left the choice up to us without being pushy."
+2
Serving Chester, MA and surrounding areas
In business since 2006
Free estimates
Credit card accepted
"Bruno arrived early and gave me a full explanation of what he was going to do and the estimated time it would take. He was courteous and professional. He showed me before and after pictures of the air ducts. The company was very easy to deal with and I would certainly do business with them again"
+14
Serving Chester, MA and surrounding areas
In business since 2025
Free estimates
Emergency services offered
I specialize in installing and troubleshooting mini split heating and cooling systems. I also have experience working with commercial refrigeration, ice makers, soda machines. I can remove and dispose of residential a/c units. I can be reached directly by calling or texting me at 646-812-1257
+2
Serving Chester, MA and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"It ended up in a $500 deal. They ended up finding mold in the air return so they ended up doing mold remediation and then they found more and I told them to just go ahead and do what needs to be done. They seemed like they tried to up sell me a little bit. "
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.
Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.
Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.
Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.
Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.
Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.
Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.