Serving Unionville, MD and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"They still need to replace the door of the air handler"
Serving Unionville, MD and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"Turned on the AC this morning to find out was blowing hot air, called up a few different companies who wanted minimum 100 bucks to come out blah blah blah, called up Markool and got connected with a technician. The technician helped me troubleshoot the issue, and have me a quick fix that will last until they make it out tomorrow to do the permanent fix. I'll be using them for all my AC needs in the future!"
Serving Unionville, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Credit card accepted
"I recently had SPECS Heating & Cooling install an AprilAire humidifier for me, and I couldn't be happier with the results. From start to finish, their service was exceptional. The team was professional, knowledgeable, and efficient, ensuring that the installation process went smoothly. Since having the humidifier installed, my indoor air quality has significantly improved, and I've noticed a positive difference in the comfort of my home. I highly recommend SPECS Heating & Cooling for their top-notch service and expertise in HVAC solutions. Five stars all around!"
Serving Unionville, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Emergency services offered
Warranties offered
"They were all very nice and professional. They did an outstanding job on replacing our heating and air unit."
Serving Unionville, MD and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Mir and his assistant did a great job mounting my 4 TVs. They were friendly, courteous and professional. His price was very reasonable and I wound definitely use his services again."
Serving Unionville, MD and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
Hi, my name is Lucas, and I have several years of experience in home improvement and residential maintenance. I’ve worked on a wide range of projects, including repairs, installations, upgrades, and light remodeling for homeowners.\n\nI serve customers throughout the Maryland area and nearby communities, and I’m able to travel locally for jobs. I’m known for being reliable, detail-oriented, and respectful of each home I work in.\n\nMy skills include general home repairs, drywall and painting, carpentry, installations, and improvement projects focused on functionality and appearance. I take pride in clear communication, quality workmanship, and making sure every customer is satisfied with the final result.
Serving Unionville, MD and surrounding areas
Approved
In business since 2006
Free estimates
Credit card accepted
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
Serving Unionville, MD and surrounding areas
Approved
Small jobs welcome
Offers commercial services
My name is Amir, I am a young, dependable General Contractor. I have connections certified in all of your home needs! Master electrician, HVAC service technician commercial and residential, as well as a in house carpenter! \n\nWe offer Junk removal, Demolition + Reconstruction/remodel services as well as regular modernization and home improvements. \n\n\nCurrently looking for weekend jobs, willing to travel just let me know your needs and we’ll get it done!
+12
Serving Unionville, MD and surrounding areas
Approved
Free estimates
Small jobs welcome
With over 15 years of experience in all aspects of home improvement, I provide high quality results at affordable prices. Every project is personal to me and I will treat your home as I would my own.
Serving Unionville, MD and surrounding areas
Approved (Corporate)
Free estimates
Offers commercial services
Home contractors
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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