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TRUSTED BY SAINT JOHN, IN HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon640
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Saint John

Avatar for Porterhouse Heating & Cooling

Porterhouse Heating & Cooling

4.86(
198
)
Approved Pro

Porterhouse Heating & Cooling

4.86(
198
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
17 years of experience

Nosotros no hablamos español. Porterhouse Heating and Cooling is locally owned and operated in Frankfort, IL. We service in the Chicagoland area, South side and Northwest, IN. This is your one stop shop for all of your Heating, A/C and Hot Water Heater repairs and installs. Also now offering air duct cleaning for entire house - call for pricing & details! We also repair and install thermostats (programmable and non programable). We service both Residential and Commercial properties. Prompt, professional service is the only way we do business. We are committed to serving our community and making sure your systems are operating efficiently and effectively. We are a step above the competition. We pride ourselves keeping our customers a No. 1 Priority. We are licensed, bonded and accredited with the BBB (Better Business Bureau). Financing is available.

"They were prompt. They came and made the repair, and within 5 hours they were done!"

Alain Z on December 2025

Nosotros no hablamos español. Porterhouse Heating and Cooling is locally owned and operated in Frankfort, IL. We service in the Chicagoland area, South side and Northwest, IN. This is your one stop shop for all of your Heating, A/C and Hot Water Heater repairs and installs. Also now offering air duct cleaning for entire house - call for pricing & details! We also repair and install thermostats (programmable and non programable). We service both Residential and Commercial properties. Prompt, professional service is the only way we do business. We are committed to serving our community and making sure your systems are operating efficiently and effectively. We are a step above the competition. We pride ourselves keeping our customers a No. 1 Priority. We are licensed, bonded and accredited with the BBB (Better Business Bureau). Financing is available.

"They were prompt. They came and made the repair, and within 5 hours they were done!"

Alain Z on December 2025


Avatar for STI Heating & Air Conditioning

STI Heating & Air Conditioning

4.98(
21
)
Approved Pro

STI Heating & Air Conditioning

4.98(
21
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

STI Heating & Air Conditioning is a family owned and operated business in "The Region". We have built a foundation of knowledge in the HVAC industry since 1995 with commercial, residential, and custom metal fabrication projects throughout Northwest Indiana. Our team is committed to ensuring customer satisfaction, and dedicated to providing the best possible indoor climate solution and custom metal fabrication for your residential or commercial needs.

"They were courteous, efficient and professional. I would recommend them for Furnace or A/C installation."

PHYCHELLE J on July 2022

STI Heating & Air Conditioning is a family owned and operated business in "The Region". We have built a foundation of knowledge in the HVAC industry since 1995 with commercial, residential, and custom metal fabrication projects throughout Northwest Indiana. Our team is committed to ensuring customer satisfaction, and dedicated to providing the best possible indoor climate solution and custom metal fabrication for your residential or commercial needs.

"They were courteous, efficient and professional. I would recommend them for Furnace or A/C installation."

PHYCHELLE J on July 2022


Avatar for Four Seasons Heating & Air Conditioning

Four Seasons Heating & Air Conditioning

4.41(
3,062
)
Approved Pro

Four Seasons Heating & Air Conditioning

4.41(
3,062
)
Approved Pro
Customers say: Super punctual
55 years of experience
Free onsite estimate

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - [email protected], [email protected], [email protected]. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"They are opportunist and unethical."

Laura D on November 2025

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - [email protected], [email protected], [email protected]. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"They are opportunist and unethical."

Laura D on November 2025


"Worker arrived on time and had all the tools needed. Did the job quickly. Very pleased with the work"

Terry S on April 2024

We are here to offer you competitive pricing to make sure that you are getting the best bang for your buck! Call today and see just how bad we are waiting and ready to provide you with the highest quality in workmanship, materials and professionally friendly service!

"Worker arrived on time and had all the tools needed. Did the job quickly. Very pleased with the work"

Terry S on April 2024


Affordable Electrical Repair, LLC

4.97(
53
)
Approved Pro

Affordable Electrical Repair, LLC

4.97(
53
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

Family owned, Affordable Electrical Repair, LLC, can take on of all your electrical repair needs from outlets and switches to generator installation and repair. We are a certified service center for most major tool brands on the market.

"Arnie is awesomeâ ¦home generator service. highly recommend him for any job."

Harry N on September 2022

Family owned, Affordable Electrical Repair, LLC, can take on of all your electrical repair needs from outlets and switches to generator installation and repair. We are a certified service center for most major tool brands on the market.

"Arnie is awesomeâ ¦home generator service. highly recommend him for any job."

Harry N on September 2022


Avatar for C2 Heating & Cooling LLC

C2 Heating & Cooling LLC

4.97(
29
)
Approved Pro

C2 Heating & Cooling LLC

4.97(
29
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

C2 Heating & Cooling is focused on total customer satisfaction and specializes in residential Heating and AC care. Having served Northwest Indiana since 2001, you can count on quality service when having work provided by our company. We offer financing on new residential equipment purchases with 10 year parts warranties. Call for more information today!

"C2 Heating and Cooling did a fantastic job installing the HVAC system. I work from home and there was minimal interruption and they were very respectful of my property. I highly recommended their services and would not hesitate to refer this company to family and friends."

Pam M on September 2020

C2 Heating & Cooling is focused on total customer satisfaction and specializes in residential Heating and AC care. Having served Northwest Indiana since 2001, you can count on quality service when having work provided by our company. We offer financing on new residential equipment purchases with 10 year parts warranties. Call for more information today!

"C2 Heating and Cooling did a fantastic job installing the HVAC system. I work from home and there was minimal interruption and they were very respectful of my property. I highly recommended their services and would not hesitate to refer this company to family and friends."

Pam M on September 2020


"They go out of their way to make sure the customer is happy."

Jacob S on March 2022

Geothermal Specialist, Inc. has serviced & installed close to 3000 geothermal systems in NW Indiana and SW Michigan since 1983. No one else in NW Indiana has the experience & service you'll find at GSI.

"They go out of their way to make sure the customer is happy."

Jacob S on March 2022


Air Control Heating and Cooling LLC

5.00(
6
)
Approved Pro

Air Control Heating and Cooling LLC

5.00(
6
)
Approved Pro
Super Service Award
20 years of experience
Free onsite estimate

Air Control Heating & Cooling, LLC; I am owner/operator Fred Sanchez with over 20 years experience in HVAC. I promised very affordable pricing. I know that customer satisfaction is how I grow & maintain my business. On time projects and quality work. Call me first for all your heating and cooing needs.

"I was very impressed with their knowledge of the project and getting it done quickly and very professionally. "

Gerald V on July 2025

Air Control Heating & Cooling, LLC; I am owner/operator Fred Sanchez with over 20 years experience in HVAC. I promised very affordable pricing. I know that customer satisfaction is how I grow & maintain my business. On time projects and quality work. Call me first for all your heating and cooing needs.

"I was very impressed with their knowledge of the project and getting it done quickly and very professionally. "

Gerald V on July 2025


Avatar for Summers, Plumbing, Heating & Cooling - (H) Crown Point

Summers, Plumbing, Heating & Cooling - (H) Crown Point

5.00(
4
)
Approved Pro

Summers, Plumbing, Heating & Cooling - (H) Crown Point

5.00(
4
)
Approved Pro
57 years of experience
Free onsite estimate

At Summers Plumbing Heating & Cooling we try to make service easy & fast! With all of our locations there is a good chance we're helping someone in your neighborhood with their plumbing, heating or cooling issues. We take the stress out of calling a repairman! Our friendly, helpful, and honest technicians are here to make your life easier, not harder than it already is. Our highly skilled, licensed, and trained technicians perform superior work, every time. We are committed to being honest, thorough, and friendly when we arrive at your house for an estimate or repair.

At Summers Plumbing Heating & Cooling we try to make service easy & fast! With all of our locations there is a good chance we're helping someone in your neighborhood with their plumbing, heating or cooling issues. We take the stress out of calling a repairman! Our friendly, helpful, and honest technicians are here to make your life easier, not harder than it already is. Our highly skilled, licensed, and trained technicians perform superior work, every time. We are committed to being honest, thorough, and friendly when we arrive at your house for an estimate or repair.


TruBlue of Merrillville

4.65(
36
)
Approved Pro

TruBlue of Merrillville

4.65(
36
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 years of experience

Why go to the trouble of trying to find multiple vendors you can trust to handle all your house care needs? One company, one call- Your TruBlue House Care Manager will take care of your entire home, inside and out, from maid services, handyman repairs, on-going maintenance, household chores, yard work-even emergency repairs and seasonal projects!

"10/10 would highly recommend True Blue of Merrillville! Responded quickly and professionally. I worked with the owner Mark. He was very accommodating and extremely helpful. They went above and beyond for me. This should be the industry standard!"

Kathleen C on November 2021

Why go to the trouble of trying to find multiple vendors you can trust to handle all your house care needs? One company, one call- Your TruBlue House Care Manager will take care of your entire home, inside and out, from maid services, handyman repairs, on-going maintenance, household chores, yard work-even emergency repairs and seasonal projects!

"10/10 would highly recommend True Blue of Merrillville! Responded quickly and professionally. I worked with the owner Mark. He was very accommodating and extremely helpful. They went above and beyond for me. This should be the industry standard!"

Kathleen C on November 2021

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Heating and Air Conditioning questions, answered by experts

If your whole house is cold that’s one thing, but what if you only have a few rooms that are cold? First, you need to determine why this may be happening. A good place to start is to investigate the potential causes listed in this article—heat transfer, airflow, thermostat problems, humidity, and insulation. Once you’ve narrowed down the issue, you’d apply the same principles to the cold rooms as you would to the entire home.

While personal preferences widely vary, sleep experts say the best temperature for sleeping is between 60 and 67 degrees Fahrenheit rather than 78. If you do choose to sleep with your AC unit tuned to 78 degrees, you might want to use only a sheet or light blanket rather than a comforter. You might also consider installing a window unit in your bedroom so that you can be cooler in bed without wasting energy cooling the whole house.

Unfortunately, a freon leak will persist even when your AC unit is off. The freon in the AC unit is under pressure no matter the status of the system, so it will continue to drip through the leak even when you shut off the entire unit. It will continue to leak freon until it’s completely empty.

The cost to add Freon to an AC ranges from $100 to $350. It can increase up to $600 for large AC units requiring much more coolant. The cost also depends on how much refrigerant your unit needs. If only a small amount of Freon leaked out, your cost would be on the lower side. A complete replacement of all the required refrigerant can get expensive.

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

The Saint John, IN homeowners’ guide to heating and air conditioning services

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

What do you need done? We’ll find top pros.
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