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Heating and air conditioning pros in Deerfield

Avatar for Cahill Heating, Cooling, Electric, Plumbing & Sewer
Cahill Heating, Cooling, Electric, Plumbing & Sewer
28983 N Herky Dr
5.00(
8
)
Approved Pro
Cahill Heating, Cooling, Electric, Plumbing & Sewer
28983 N Herky Dr
5.00(
8
)
Approved Pro
Customers say: Quick response
31 local quotes requested
52 years of experience

Cahill Heating, Cooling, Electric, Plumbing & Sewer is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Miguel and his Cahill team were great! Very courteous and conscientious in regards to cleanliness and care in our home. Worked quickly and seamlessly as a team. Would recommend to anyone needing HVAC service or installation. Our salesperson Molly is great too!!"

Michael M on August 2024

Cahill Heating, Cooling, Electric, Plumbing & Sewer is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Miguel and his Cahill team were great! Very courteous and conscientious in regards to cleanliness and care in our home. Worked quickly and seamlessly as a team. Would recommend to anyone needing HVAC service or installation. Our salesperson Molly is great too!!"

Michael M on August 2024


Avatar for Optimized Air LLC
Optimized Air LLC
423 Windridge Drive
5.00(
3
)
Approved Pro
Optimized Air LLC
423 Windridge Drive
5.00(
3
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

Every property is unique, and we recognize that a one-size-fits-all approach won't cut it. Optimized Air specializes in crafting personalized solutions tailored to your specific needs. Whether you need a new system installation, repairs, or maintenance, we'll take the time to assess your space and recommend the best-suited options to optimize your indoor comfort and energy efficiency. We are dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities. We look forward to working with you!

"I could tell Justin was experienced and he knew exactly what kind of AC I needed. Everything is working great now!"

Kyle G on September 2023

Every property is unique, and we recognize that a one-size-fits-all approach won't cut it. Optimized Air specializes in crafting personalized solutions tailored to your specific needs. Whether you need a new system installation, repairs, or maintenance, we'll take the time to assess your space and recommend the best-suited options to optimize your indoor comfort and energy efficiency. We are dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities. We look forward to working with you!

"I could tell Justin was experienced and he knew exactly what kind of AC I needed. Everything is working great now!"

Kyle G on September 2023


Avatar for AVI Alliance Systems
AVI Alliance Systems
1429 Holmes Rd
4.95(
37
)
Approved Pro
AVI Alliance Systems
1429 Holmes Rd
4.95(
37
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

We are dedicated to providing our clients with the best installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C, rooftop AC, mini-split and multi-split systems, and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guaranteeing your satisfaction.

"Quick to respond and arrived on time."

BHASKAR G on November 2020

We are dedicated to providing our clients with the best installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C, rooftop AC, mini-split and multi-split systems, and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guaranteeing your satisfaction.

"Quick to respond and arrived on time."

BHASKAR G on November 2020


Avatar for Eduardo Handyman Services
Eduardo Handyman Services
5757 N Sheridan Rd Unit 7A
5.00(
9
)
Approved Pro
Eduardo Handyman Services
5757 N Sheridan Rd Unit 7A
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Eduardo Handyman Services is the premier professional company offering residential services to our clients. We are known to pay exquisite attention to detail while making your satisfaction our number one priority. Please call us today to schedule your appointment with true professionals at work for you!

"Has done several projects and is a pleasure to work with. Most importantly I don't have to worry about being safe letting someone into my home. My go to guy for help."

Diane B on October 2024

Eduardo Handyman Services is the premier professional company offering residential services to our clients. We are known to pay exquisite attention to detail while making your satisfaction our number one priority. Please call us today to schedule your appointment with true professionals at work for you!

"Has done several projects and is a pleasure to work with. Most importantly I don't have to worry about being safe letting someone into my home. My go to guy for help."

Diane B on October 2024


Avatar for G & R Heating and Air, LLC
G & R Heating and Air, LLC
PO Box 78
4.67(
876
)
Approved Pro
G & R Heating and Air, LLC
PO Box 78
4.67(
876
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
251 local quotes requested

Stay comfortable in your home or business with heating and cooling HVAC services from G & R Heating and Air, LLC of Gilberts. We specialize in service, repair and new installs. With over 20 years of industry experience, we have the knowledge and understanding to get the job done right. Unlike others in the HVAC industry, we will not nickel and dime you. For us, customer satisfaction is our primary goal. We realize that fair prices and honest work coupled with excellent customer service will keep our customers happy. We are only happy when you are happy! Call us today!

"Good and fast"

Elodie D on January 2025

Stay comfortable in your home or business with heating and cooling HVAC services from G & R Heating and Air, LLC of Gilberts. We specialize in service, repair and new installs. With over 20 years of industry experience, we have the knowledge and understanding to get the job done right. Unlike others in the HVAC industry, we will not nickel and dime you. For us, customer satisfaction is our primary goal. We realize that fair prices and honest work coupled with excellent customer service will keep our customers happy. We are only happy when you are happy! Call us today!

"Good and fast"

Elodie D on January 2025


TDH Mechanical, Inc.
1623 W. Montrose Ave.
4.72(
1,126
)
Approved Pro
TDH Mechanical, Inc.
1623 W. Montrose Ave.
4.72(
1,126
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
14 local quotes requested

Welcome to TDH, a famlily owned company that is committed to providing a Hassle Free Service and Great products. We offer you over 3 decades of knowledge, experience and honest service. We are ready to serve your HVAC service and installation needs with 4 locations - Chicago-Elmhurst- St Charles. TDH Mechanical is A+ rated BBB with over 1000 reviews posted on Homeadvisor and Google. TDH offers furnace and air conditioning repair and installation, duct work, duct cleaning, boiler repair and installation; steam and hot water. We install Trane, Rheem, Carrier and Goodman and offer services on any brand and carry most parts on our service trucks.

"Did great work and provided a good estimate."

Brendon F on September 2024

Welcome to TDH, a famlily owned company that is committed to providing a Hassle Free Service and Great products. We offer you over 3 decades of knowledge, experience and honest service. We are ready to serve your HVAC service and installation needs with 4 locations - Chicago-Elmhurst- St Charles. TDH Mechanical is A+ rated BBB with over 1000 reviews posted on Homeadvisor and Google. TDH offers furnace and air conditioning repair and installation, duct work, duct cleaning, boiler repair and installation; steam and hot water. We install Trane, Rheem, Carrier and Goodman and offer services on any brand and carry most parts on our service trucks.

"Did great work and provided a good estimate."

Brendon F on September 2024


Avatar for Ray's Heating & Air Conditioning
Ray's Heating & Air Conditioning
1913 Wright Blvd
5.00(
1
)
Approved Pro
Ray's Heating & Air Conditioning
1913 Wright Blvd
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
69 years of experience

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!

"I am extremely happy with them. I have been working with them for almost 30 years. They were very reputable, competitive in pricing and responsive."

Tom L on January 2020

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!

"I am extremely happy with them. I have been working with them for almost 30 years. They were very reputable, competitive in pricing and responsive."

Tom L on January 2020


Avatar for Keith Lasco Heating & Cooling
Keith Lasco Heating & Cooling
402 Highview Drive
5.00(
22
)
Approved Pro
Keith Lasco Heating & Cooling
402 Highview Drive
5.00(
22
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 years of experience

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!

"Great service"

HALINA K on December 2024

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!

"Great service"

HALINA K on December 2024


Avatar for ML Electric, Inc.
ML Electric, Inc.
3046 Lincoln Street
5.00(
8
)
Approved Pro
ML Electric, Inc.
3046 Lincoln Street
5.00(
8
)
Approved Pro
Customers say: Quick response
23 local quotes requested
8 years of experience

ML Electric, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business

"Miguel was great! Good communication, and he showed up on time and diagnosed the problem right away. We will hire him again!"

Russell R on February 2025

ML Electric, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business

"Miguel was great! Good communication, and he showed up on time and diagnosed the problem right away. We will hire him again!"

Russell R on February 2025


For more than 50 years Cahill has provided customers with quality heating, cooling, electric, plumbing and sewer services.

"Very helpful and efficient."

Nicole L on January 2025

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Heating and air conditioning services FAQs

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an uncertified HVAC pro could lead to poor quality work, costly future expenses, and potential code violations. A certified HVAC technician tackling your home projects protects you as a homeowner.

As you browse our pro listings, take note of the “Angi Certified” badge. Angi Certified businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.

While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.  

The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.

The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.  

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