Deljo Heating, Cooling & Plumbing

4.9 (3235 reviews)

| Chicago, IL | General Contractor

Deljo Heating, Cooling & Plumbing provides comprehensive heating, cooling, and plumbing services as a general contractor in Chicago.

At a Glance

Category: General Contractor
Location: Chicago, IL
Rating: 4.9/5 (3235 reviews)
Phone: +17736579989
Services: Plumber, General Contractor, Manufacturer

About Deljo Heating, Cooling & Plumbing

Deljo Heating, Cooling & Plumbing is a general contractor based in Chicago, IL, serving the local metropolitan area. The company has a 4.9/5 rating based on over 3200 Google reviews. Their services include HVAC, plumbing, and general contracting for residential and commercial properties.

Their work encompasses installation, maintenance, and repair of heating, ventilation, and air conditioning systems, as well as plumbing services. Specific offerings include furnace repair, AC installation, boiler services, water heater installation, and drain cleaning. They cater to both homeowners and light commercial clients seeking system upgrades, repairs, or new installations.

When considering Deljo Heating, Cooling & Plumbing for a project, it is advisable to inquire about specific experience with electrification technologies such as heat pumps, particularly for heating and cooling applications. Ask for details on their process for assessing home energy efficiency and integrating new systems with existing infrastructure. Prospective clients should also confirm their licensing and insurance for specific project types in the Chicago area.

Services

Plumber

General Contractor

Manufacturer

Point Of Interest

Service

Establishment

Hours

Sunday 0:00-0:00

Business information verified via Google Business Profile. Last updated: 2026.

Last verified: May 2026

Contact

4300 West Bryn Mawr Avenue

Chicago, IL 60646

(773) 657-9989

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Map

How to evaluate Deljo Heating, Cooling & Plumbing

Before hiring Deljo Heating, Cooling & Plumbing for general contractor work in Chicago, take a few minutes to verify their qualifications and confirm they are the right fit for your project. The right general contractor for one homeowner may not be the right fit for another, so do the diligence up front.

Verify licensing and insurance

Confirm that Deljo Heating, Cooling & Plumbing carries an active IL contractor license appropriate for the scope of work, plus general liability and workers’ compensation coverage. Ask for the license number and look it up on the state board website. A general contractor that hesitates to share these details is a red flag, regardless of how favorable their reviews look.

Get a written, itemized quote

Request a detailed written estimate that lists materials, labor, permit fees, timeline, and payment schedule. Itemized quotes make it possible to compare Deljo Heating, Cooling & Plumbing side-by-side with other general contractor options in Chicago, and they protect you from scope creep once the work begins.

Ask about project experience

Ask Deljo Heating, Cooling & Plumbing how many projects similar to yours they have completed in the last 12 months, whether they will be the primary on-site team or are subcontracting, and how they handle change orders. Request two or three local customer references and actually call them — reviews on Google are useful but a five-minute conversation reveals much more about how a general contractor actually shows up.

Frequently Asked Questions

What services does Deljo Heating, Cooling & Plumbing offer in Chicago?

Deljo Heating, Cooling & Plumbing offers a comprehensive range of HVAC services including heating and cooling maintenance, installations, and emergency services. They also provide plumbing services to ensure your home's systems are in good working order.

Does Deljo Heating, Cooling & Plumbing offer emergency services?

Yes, Deljo Heating, Cooling & Plumbing provides 24/7 emergency support for both heating and plumbing issues to ensure your home remains comfortable and safe.

What is the 'Goldstar Maintenance Agreement' offered by Deljo Heating, Cooling & Plumbing?

The Goldstar Maintenance Agreement is a program that offers discounted diagnostic charges, 15% off parts and repairs, regular maintenance on all covered equipment, seasonal maintenance visits, priority scheduling, and discounts on installations to maximize savings and proactively address HVAC issues.

What makes Deljo Heating, Cooling & Plumbing stand out?

Deljo Heating, Cooling & Plumbing has over 100 years in business, over 3,800 active maintenance agreements, and more than 3,000 five-star reviews. They are also a Mitsubishi Diamond Dealer, with technicians undergoing extensive training, ensuring superior skill and dedicated customer service.