
Serving Monkton, MD and surrounding areas
Approved
In business since 1988
Free estimates
Emergency services offered
"Mike did a fantastic job of installing our furnace and air conditioning units. Highly recommend Mike"


Serving Monkton, MD and surrounding areas
Approved
In business since 1988
Free estimates
Emergency services offered
"Mike did a fantastic job of installing our furnace and air conditioning units. Highly recommend Mike"

Serving Monkton, MD and surrounding areas
Approved
Super Service Award Winner
In business since 1986
Emergency services offered
Warranties offered
"The group at Tim Kyle Electric are always on time and professional. The prices are satisfactory, but you get what you pay for and I have yet to be disappointed. Quick, clean, and I have a quiet, working exhaust fan in the powder room."





+17

Serving Monkton, MD and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Replaced both my compressor and air handler which was nearly 50 years old, rewired and plumbed everything, added and removed ducting as needed to provide a clen install. Team was fast and professional During the initial quote/Inspection worked with me to understand my cooling needs and did not ty to upsell me. Scheduling was quick and they were even able to move up my install date. I would recomend them to anyone."





+20

Serving Monkton, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2009
Emergency services offered
Warranties offered
"Doug came out in the middle of a snow storm to fix my Furnace after not having heat for a few days. As always, Doug was very professional, honest, and performed great work. He was very meticulous taking apart my heating system and made sure everything was in working order before he left. I would definitely use him again!
"





+2

Serving Monkton, MD and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"I received six estimates for replacing my air conditioning system. Of the six, four came in at a reasonable price including the estimate from the Michael Bonsby Company. Three of the four estimators made a good impression but the one who impressed me the most was David Lux of Michael Bonsby. He spent the most time, provided the most information, and fully answered all of my questions in all of my contacts with him prior to signing the contract. Even after I signed the contract, had the system installed, and made final payment, David Lux was still very prompt in answering my inquiries. So far I am very happy with the air conditioning system installed by and I would highly recommend the Michael Bonsby Company if you ever need to replace your air conditioning system."





+3

Serving Monkton, MD and surrounding areas
Approved (Corporate)
In business since 1945
Free estimates
Emergency services offered
"Arrived on time , very detailed on a very difficult install . The installation team checked all the boxes, I highly recommend this company for air-conditioning services."


Serving Monkton, MD and surrounding areas
Approved (Corporate)
In business since 1982
Free estimates
Emergency services offered
"I purchased the Annual Maintenance Plan for my Heating & Air Conditioning systems. Blue Dot has excellent customer service. Adrian serviced my heating system yesterday and he was great!!"


Serving Monkton, MD and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"They are prompt, courteous and know air conditioners"





+1
Serving Monkton, MD and surrounding areas
Approved
In business since 1982
Warranties offered
Credit card accepted
We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!





+6

Serving Monkton, MD and surrounding areas
Approved
Super Service Award Winner
In business since 1998
Free estimates
Emergency services offered
"I was experiencing low water flow to my 3rd floor bedroom. Since the house is 100 years old, I assumed that the only way to repair the problem was to replace the water service lines which would have been very expensive. Brian came to the house and identified the source of the problem as the water pressure regulator. Brian replaced the regulator, drained and refilled the lines to remove air bubbles. The problem was repaired. Given the age of the house and the location of the problem most contractors would have told me I needed to replace the pipes to the 3rd floor. Brian identified the real problem and in the process saved me a lot of money. Great Job."





+55
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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