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HVAC and Plumbing in Deerfield, IL

For over 100 years, Deljo Heating, Cooling & Plumbing has been the trusted name for HVAC services in Deerfield, IL. Whether you need heating, cooling, or indoor air quality solutions, our expert technicians ensure your home stays comfortable all year long. We offer furnace service, air conditioning repair, and complete maintenance solutions tailored to your needs.

Why Choose Deljo Heating, Cooling & Plumbing?

  • Certified Technicians & Industry Partnerships: Our team is NATE-certified and Carrier-authorized, ensuring high-quality service and equipment.
  • Flexible Financing Options: We offer financing plans to make HVAC upgrades and repairs more affordable.
  • Special Offers & Promotions: Check our website for seasonal discounts and promotional offers on heating, cooling, and plumbing services.
  • Local Expertise: We understand the specific HVAC and plumbing challenges Deerfield homeowners face.
  • Preventative Maintenance Plans: Enroll in our maintenance plans to keep your HVAC system running efficiently and avoid costly repairs.

Heating Services in Deerfield

Winters in Deerfield can be brutal, and a reliable heating system is essential to keep your home warm and safe. Deljo Heating, Cooling & Plumbing provides professional heating solutions, including:

Furnace Installation & Replacement

If your furnace is outdated or inefficient, our team can help you select and install a furnace. We install energy-efficient furnaces that maximize comfort while reducing heating costs.

Furnace Repair in Deerfield, IL

A malfunctioning furnace can leave you in the cold. Our licensed technicians offer 24/7 emergency furnace repair to diagnose and fix issues quickly. If your furnace isn’t heating properly, making strange noises, or cycling frequently, contact us for immediate service.

Furnace Maintenance

Routine furnace maintenance helps extend the life of your heating system and ensures it runs efficiently. Our furnace service in Deerfield, IL includes a full inspection, filter replacement, and system tune-up to prevent breakdowns.

Boiler Services

In addition to furnaces, we offer boiler repair, installation, and maintenance. If you rely on a boiler for home heating, our technicians can keep it running smoothly throughout the winter.

Air Conditioning Services in Deerfield

When summer temperatures rise, you need a reliable air conditioner to stay cool. Deljo Heating, Cooling & Plumbing offers expert AC services in Deerfield, IL to keep your system operating at peak performance.

Air Conditioning Repair in Deerfield, IL

If your AC isn’t cooling effectively, is leaking, or making unusual noises, we provide fast and reliable AC repairs. Our team services all AC makes and models, ensuring a quick resolution to any cooling issues.

Air Conditioning Installation & Replacement

Upgrading to a modern AC system improves comfort and efficiency. We install modern air conditioning units designed to handle Deerfield’s summer heat while optimizing energy savings.

If your AC unit is over 10 years old and struggling to keep up with demand, it may be time for AC replacement. We install energy-efficient air conditioning systems that enhance comfort and lower energy bills.

AC Maintenance

Regular maintenance is essential for extending the lifespan of your air conditioner. Our comprehensive AC tune-ups improve efficiency, reduce energy costs, and help prevent unexpected breakdowns.

Deerfield Plumbing Services

Deljo Heating, Cooling & Plumbing is more than just an HVAC provider. We also offer plumbing services in Deerfield. Our licensed plumbers are equipped to handle everything from minor repairs to major plumbing emergencies.

Emergency Plumbing Repairs

Our 24/7 emergency plumbing services help Deerfield homeowners address leaks, burst pipes, and other urgent plumbing issues.

Drain Cleaning & Clog Removal

Blocked drains can lead to serious plumbing problems. Our team provides professional drain cleaning services to keep your pipes flowing smoothly.

Pipe Repair & Frozen Pipe Solutions

Cold winters can cause pipes to freeze and burst. We offer pipe repair services to prevent costly water damage.

Sump Pump Services

Protect your home from water damage with a properly maintained sump pump. We offer installation and routine maintenance to ensure optimal performance year-round.

Water Heater Services in Deerfield, IL

Hot water is essential for daily life. Deljo Heating, Cooling & Plumbing offers complete water heater services in Deerfield, IL. This includes installation, repair, and maintenance for traditional and tankless water heaters.

Water Heater Installation & Replacement

If your water heater is outdated or failing, we install units that provide reliable hot water while reducing energy costs.

Water Heater Repair

Is your water heater not producing hot water? We diagnose and repair common water heater issues, from faulty thermostats to sediment buildup.

Water Heater Maintenance

Regular maintenance extends the life of your water heater and prevents unexpected breakdowns. Our tune-ups include flushing the system, checking the anode rod, and ensuring optimal performance.

Indoor Air Quality Solutions in Deerfield

The air quality in your home plays a crucial role in your family’s health and comfort. We offer whole-home air purification, humidifiers, dehumidifiers, and air filters to reduce allergens, pollutants, and airborne contaminants. Our solutions help maintain a cleaner, healthier indoor environment year-round.

Understanding HVAC & Plumbing Costs

Pricing for HVAC and plumbing services can vary based on several factors, including:

  • System Size & Complexity: Larger homes or more complex systems may require additional work and materials.
  • Repair Severity: A minor issue, such as a clogged filter, costs less than replacing a furnace motor or repairing refrigerant leaks.
  • Equipment Efficiency: High-efficiency units may have a higher upfront cost but offer long-term energy savings.
  • Emergency vs. Standard Service: Emergency repairs often come at a premium due to after-hours service needs.
  • Installation Requirements: Replacing ductwork or upgrading electrical components may impact overall costs.

We provide upfront, transparent pricing for all services and offer financing options to make repairs and upgrades more affordable.

Contact Us for Plumbing and HVAC in Deerfield

Whether you need HVAC or plumbing services in Deerfield, Deljo Heating, Cooling & Plumbing is here to help. Call us at 773-280-8251 or schedule service online today!

Recent Jobs and Reviews in Deerfield, IL

Deerfield, IL at a glance

Deljo Heating, Cooling & Plumbing has completed 1 job in Deerfield, IL on April 2, 2026.

Deljo Heating, Cooling & Plumbing has completed 21 jobs in Deerfield, IL in the last 12 months.

Job Locations and Reviews

Performed maintenance agreement inspection on multi-zone system including two condensers, two dehumidifiers, one media filter, and one electronic air cleaner. Addressed cooling deficiency complaint on unit #501 by inspecting condenser components, including capacitor, contactor, and electrical connections; found debris accumulation in outdoor unit and removed insulation material that had become dislodged from system. Cleaned compartment, verified proper electrical connections, and restored unit to operational status.
Performed maintenance agreement inspection on multi-zone system including two condensers, two dehumidifiers, one media filter, and one electronic air cleaner. Addressed cooling deficiency complaint on unit #501 by inspecting condenser components, including capacitor, contactor, and electrical connections; found debris accumulation in outdoor unit and removed insulation material that had become dislodged from system. Cleaned compartment, verified proper electrical connections, and restored unit to operational status.
Joe A.
Joe A. Checked in
Performed maintenance agreement inspection on multi-zone system including two condensers, two dehumidifiers, one media filter, and one electronic air cleaner. Addressed cooling deficiency complaint on unit #501 by inspecting condenser components, including capacitor, contactor, and electrical connections; found debris accumulation in outdoor unit and removed insulation material that had become dislodged from system. Cleaned compartment, verified proper electrical connections, and restored unit to operational status.
Deerfield, IL 60015

Client Testimonials

Read the opinions of our satisfied customers.

5 stars

This was my first time as a Deljo customer, and I was very pleased. My technician, Giovanni, was very thorough and diligent. He serviced my furnace and identified a faulty sensor that was causing the unit to shut itself down. Deljo ordered the part, and Giovanni replaced it a few days later. Overall, the team at Deljo was great. The dispatcher kept me informed about Giovanni’s arrival time, and the supervisor assisted Giovanni when he was diagnosing the problem with the furnace. I highly recommend Deljo.

Paul D. 10/15/2026

5 stars

I’ve used Deljo for over 10 years now and they always do a good job. Izzy was the technician for this visit and he did an excellent job with my winter maintenance on my multiple units in the household. He also addressed an issue while cleaning the furnace blower wheel. His communication was clear and concise with what he planned to do to address the issue quickly. He was confident and I had 0 concerns or questions. Great job Izzy!

Jeff S. 10/14/2026

5 stars

Paul was great! Arrived on time and completed maintenance on my humidifier, tankless water heater, and two furnaces. All work was performed under my Gold Star maintenance program, so all maintenance charges were covered. Paul did provide a few proposals for additional services on furnace & tankless water heater, but those were emailed to me for further consideration. Paul was friendly, knowledgeable, and answered all my questions.

Jack N. 10/12/2026

5 stars

Gabe did an excellent job with our annual service visit. He arrived in the early part of our service window, was friendly and knowledgeable, and got the work done in a very reasonable amount of time. I have great confidence in Deljo, and am a long-time customer.

Ruth C. 10/9/2026

5 stars

I’ve been using Deljo for 20 years for HVAC but now venture into enlisting their plumbing services. Bashar was very courteous, efficient & informative, and I’d definitely request him again for the next plumbing job. Great experience!

Christopher R. 10/2/2026

5 stars

Working with Deljo is always a good experience, and today’s appointment with Izzy was no different. He was able to come early which actually worked better with our schedules, but called me ahead of time to make sure that was okay. He was friendly and knowledgeable when he explained the work he had done during his visit and our options for fixes. He was also able to schedule a quote appointment for us while he was still here. We would highly recommend working with Izzy and the Deljo team!

Lauren H.  9/25/2026

5 stars

Drew performed the seasonal maintenance on my AC. It needed some repairs and updates and he was able to fix everything at the same appointment. He also noticed issues with the hot water heater and we were able to get ahead of that, as well.

Emily W. 9/11/2026

5 stars

I would leave six out of five stars if I could! My technician Jorge went above and beyond on his service. There was buildup in the rental property’s toilet from the previous tenant. One maintenance person did a surface level job of cleaning but did not fully remove the obstruction. Jorge went above and beyond and came to a solution and even explained the perpetual problems older toilet models can cause. Moving forward with this insight, I can perform my own upkeep the previous tenant did not. Thank you kindly!

Kayla K.  9/15/2026

5 stars

We just had our new boiler installed by Jonathan and Carlos. First rate work! They arrived on time, removed the old boiler, installed the new unit, and explained the features. Both guys were pleasant. Bring on the cold this winter! We are ready thanks to the team from Deljo.

Edward B.  6/26/2026

5 stars

Deljo’s heating and cooling team was awesome to work with. As a first-time homeowner, I really appreciated how clearly they explained everything and answered all my questions. From the quote to the install and follow-up, the service was top-notch. Highly recommend!

Lindsey A. Chicago, IL

5 stars

Matt did an amazing job. He serviced our home and our rental property. He gave us options to help our systems run more efficiently. He also told us about Deljo’s new plumbing inspection which was very affordable. He is great!

Jordan R. Chicago, IL

5 stars

We had a problem with our Humidifier and called Deljo. Jesus came out to help and was amazing. He was extremely knowledgeable, detail oriented, and super courteous. Amazing customer experience!

Jeff C. Chicago, IL

5 stars

Jordan and Jesus were extremely helpful and knowledgeable! We would 100% work with them and have them back. They were both very professional and efficiently fixed our heating system.

Emily L. Chicago, IL

5 stars

Shout out to Ernesto for coming out and servicing our furnace and air con. Deljo provides a great service and glad to trust them with our HVAC for our small business.

Lauren H. Chicago, IL

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