
Serving Nantucket, MA and surrounding areas
Approved
In business since 2006
Free estimates
Credit card accepted
"Excellent service Thank You :) , polite & friendly Very accommodating HIGHLY recommend ."


Serving Nantucket, MA and surrounding areas
Approved
In business since 2006
Free estimates
Credit card accepted
"Excellent service Thank You :) , polite & friendly Very accommodating HIGHLY recommend ."

Serving Nantucket, MA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Good Service, on time, reasonably priced, professional."
Serving Nantucket, MA and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
With over 5 years experience in the vent and duct industry, Nantucket Dryer Vent Cleaning is your industry expert in Nantucket, MA and the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. You can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!\n\n\n
Serving Nantucket, MA and surrounding areas
Approved
Free estimates
Small jobs welcome
Hello. With 16 years in the HVAC business, I recently decided to start my own company! Well experienced in all things pertaining to mechanical system’s of all kinds. From service, to replacements, to new installs we’ve got you covered! Licensed and insured.

Serving Nantucket, MA and surrounding areas
In business since 1983
Free estimates
Emergency services offered
"From start to finish The job went excellent. Carl and his crew are true professionals. I have and will continue to recommend them to anybody in need of their services"





+6
Serving Nantucket, MA and surrounding areas
In business since 2017
Free estimates
Emergency services offered
"L and G was incredibly good to work with no surprises quote was fair and work was performed quickly and very professionally. We would recommend L and G to anyone in need of heating and or air conditioning work"





+12

Serving Nantucket, MA and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"Excellent job, professional, considerate of my time. I already notice less dust bunnies due to my cleaner air.
"

Serving Nantucket, MA and surrounding areas
In business since 2025
Free estimates
Small jobs welcome
"Highly recommend Arctic Elements Martin Beatty for heating and cooling! Marty worked on my mom?s furnace and did an outstanding job. He?s incredibly friendly, professional, and easy to work with. His pricing is very competitive, and his turnaround time was impressive. If you?re looking for reliable, high-quality heating and cooling services, Marty is your guy!"

Serving Nantucket, MA and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"Jim with North Alabama Technical Services removed some items from my computer so that I could send emails and attend to items I needed to address that day. As planned, the next day he thoroughly cleaned my computer, he also made helpful suggestions while working on my computer. I would call him again if needed and I thought the fee was reasonable."



Serving Nantucket, MA and surrounding areas
In business since 2024
Free estimates
Emergency services offered
"It was a pleasure working with Justin and Dave. They were kind, reliable, and a pleasure to have in our home. High-level integrity and tenacity. They found several clusters of live knob and tube lighting, despite a previous electrician signing off that all knob and tube was removed. I would hire them again without question."





+74
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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