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Find Air conditioning pros in Marengo

JMSM Heating-Cooling-Cooking-Fountain-Refrigeration, LLC
4.8(
115
)

Serving Marengo, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Warranties offered

Small jobs welcome

"We were having problems getting our gas fireplace to light They were on time very reasonable charge and explained everything that technician was doing There were a couple of things that I could do myself that were permitted I was very pleased and highly recommend"
QUADFIRE PELLET STOVE
PEL PRO PP130 PELLET STOVE
Response time2 hrs
Recommended by94%of homeowners
Avatar for Friesen Family Renovations, LLC
Friesen Family Renovations, LLC
4.7(
43
)

Serving Marengo, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Chris with Friesen Family Renovations, LLC was very professional and thorough in the work he has completed. He installed a new screen door, replaced my tub stem and faucet, repaired my subfloor in the kitchen and installed brand new LVP flooring to replace old and water damaged flooring. He also mounted a television for me, and did some drywall repairs as well. I would recommend this business to anyone looking for quality and dependable work!"
Response time2 days
1 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Cosby Heating & Air Conditioning, LLC
Cosby Heating & Air Conditioning, LLC
5.0(
1
)

Serving Marengo, OH and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Homestead Air, LTD
5.0(
2
)

Serving Marengo, OH and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Keith came on a sweltering Saturday and knew exactly what to do. He had a long drive and I appreciate his taking the time to help us out! I thought his rates were reasonable and his knowledge of what to do outstanding. If I ever need help for other heating or cooling issues there is no one else I would think of calling."
2016 Project
2016 Project
2016 Project
Response time20 mins
Response rate100%
Recommended by100%of homeowners
Trent M Craig Contractor
5.0(
8
)

Serving Marengo, OH and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Trent did a fantastic job remodeling our bathroom, exhibiting precision workmanship with having to ensure the walls were square and plumb, as well as leveling the uneven basement floor, and putting in a cool curved shower door. He put marble tile in the shower, making sure each tile was perfectly aligned with the others to get a mirror affect from a distance. He then graciously handled a curveball from the customer (that’s me!) when I decided to change the color of the grout AFTER one wall was done. He obliged and re-grouted to my satisfaction, with no harm done to the beautiful marble tiles!"
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+2

Response time1 day
3 neighbors recently requested a quote
Recommended by100%of homeowners
Shane
New to Angi

Serving Marengo, OH and surrounding areas

Approved

HVAC technician with hands-on experience diagnosing, repairing, and maintaining residential and light commercial heating and cooling systems. Skilled in troubleshooting furnaces, air conditioners, heat pumps, and ventilation systems, with a strong focus on efficiency, reliability, and getting systems back up and running quickly. Multiple certifications including NATE.

Avatar for Lui Irrigation LLC
Lui Irrigation LLC
4.0(
4
)

Serving Marengo, OH and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"On March 30, 2026, Lui did an outstanding job on aerating and overseeding my medium-size lawn. Lui was prompt, courteous, very Professional and completed the job for a very reasonable price. I will recommend this company to anyone needing this service"
Additional Photos
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+2

Response time4 days
Response rate88%
12 neighbors recently requested a quote
Avatar for Teacher Driven Lawn Care LLC
Teacher Driven Lawn Care LLC
New to Angi

Serving Marengo, OH and surrounding areas

Approved

At Teacher Driven Lawn Care, we pride ourselves on treating every property we work on with the same care and attention we would give to our own homes. With a dedicated staff boasting years of experience in landscaping services, we are committed to providing top-notch lawn care and landscaping solutions tailored to meet the unique needs of each client.

9 neighbors recently requested a quote
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FAQs for air conditioning projects in Marengo, OH

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.

The Marengo, OH homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.