
Serving Upperco, 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 Upperco, 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 Upperco, MD and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"This AC repair team was EXCELLENT !!! Exceed my expectations. Michael communicated with me from the initial text message to when he team would be arriving. He was patient answering my questions, went through each step of his process over again to make sure AC would continue to run properly."





+20

Serving Upperco, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2009
Emergency services offered
Warranties offered
"The service from Bamford Plumbing & Heating Inc. went great. He kept his scheduled appointments and had no need to come back because he did everything 100% the first time through. He is a general plumber, but his knowledge of boilers was exceptional, I learned a lot."





+2

Serving Upperco, MD and surrounding areas
Approved (Corporate)
In business since 1945
Free estimates
Emergency services offered
"My husband and I were very happy with the service we received from ARS and we will continue to employee them for all our air conditioning needs."


Serving Upperco, MD and surrounding areas
Approved (Corporate)
In business since 1982
Free estimates
Emergency services offered
"The technician who serviced our furnace did an excellent job. He is knowledgeable, efficient, and courteous. We welcome him to attend to our heating and air conditioning needs at any time."


Serving Upperco, MD and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"Fantastic company from start to finish! The gentleman who sold us the furnace, their salesman, Alex, was upfront in getting us the best price, along with a 10 yr parts and labor warranty included! The price for the furnace and installation was great, and they guaranteed apples to apples to meet any other companies cost. They offer a $100. fee if we found anyone to do it cheaper, with the same offer. They were able to schedule the intallation quickly, and did a great job intalling it. I would highly recommend using this company for your heating and air conditioning needs. Great company! Great prices! Great work! You won't be disappointed using Horizon Services! Take care....."





+27

Serving Upperco, MD and surrounding areas
Approved
Super Service Award Winner
In business since 1998
Free estimates
Emergency services offered
hi my name is brian, my business is B.C.G. BUILDING SOLUTIONS, LLC. We are a full service handyman company as well as a full service remodeling company. We do it all! I have been in the home inprovement business for over 20 years, I am here to PROVIDE the best quality service to all my customers NEW/OLD in home inprovement work . I have remodeled bathroom/kitchen and all type of home improvement work for over 20 years and so many more things like, decks,carpentry, painting,Interior/exterior entry doors,plastering,drywall,finishing,hardwood flooring,ceramic tiles, plumbing, steps,windows,all kinds of repairs work for all my customers. picture only show a small view of my work, but all my customers speak for me when it comes to all my years of work and making sure the job is clean through out the course of the job and how HAPPY they are with me through out all the years I have been doing work for them and there friends.my business here with doing home inprovement work is to PROVIDE the BEST quality service to the public as your home inprovement Contractor. I have learn over the 20 years in business how to PROVIDE the best quality work/quality service to all my customers through out my experience in this field of home improvement, just give me a chance and you will ENJOY having me take care of your home inprovement needs for many years to come. I look forward to meeting you and being your home inprovement contractor!!!





+55
Serving Upperco, MD and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Extremely pleased with the quickness of the response and completion of the job. Our technician was knowledgeable, friendly and efficient. He took time to explain the problem and the task needed to restore the until to full operating condition. Thanks to AJB Heating and Cooling."





+6

Serving Upperco, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Credit card accepted
"We had Mr. Portillo Install an air conditioner in my sons apartment. He came right over, knew exactly what to do, installed the parts and put the air conditioner in the window. I live in Los Angeles, and my son lives in Baltimore. I found Mr. Portillo on the Angi site, and not knowing anything about his skills or business, he contacted me, let me know this is something he could do, so I asked him to do the job. Mr. Portillo was EXCELLENT, great ay customer services, and took care of business. I highly recommend Mr. Portillo as highly skilled and a great person to do business with!!"





+92

Serving Upperco, MD and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Good quality does exactly what I need it to do. Turns off automatically once the moisture is fully out of the air. Turns on automatically in case I forget to. Amazing product."





+24
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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