Chicago to Milwaukee · EPA Certified Since 2017

Commercial HVAC & Refrigeration Experts.

We don't just add refrigerant and leave. Delfino finds and permanently fixes the actual leak — protecting your inventory, health scores, and bottom line.

Call 847-650-6444 Get Free Quote

10+

Years per technician

Cities served

45-Day

Warranty on all work

2017

Est. Antioch, IL

Refrigerant Leak Detection — Our Specialty

We Find the Leaks Others Miss.

Most contractors top off refrigerant and send a bill. We use electronic, ultrasonic, and UV dye detection to locate and permanently repair the source.

Schedule Inspection View Service

$2K+

Avg. customer savings

Detection methods

EPA

608 compliant

Emergency HVAC & Refrigeration Repair

Walk-In Down at 2 AM? We Respond.

A refrigeration failure means lost product, lost revenue, and health code violations. Delfino treats every emergency with the urgency your business demands.

Emergency: 847-650-6444 View Emergency Services

Same-Day

Priority dispatch

Stocked

Parts on truck

IL & WI

Full coverage area

Trusted by National Brands Since 2017

McDonald's. 7-Eleven. Subway. They Trust Us.

National franchise operators choose Delfino for consistent service, corporate equipment standards, and reliable response across multiple locations.

Industries We Serve Contact Us

National brands

Industries covered

Core services

Our Services

12 Services. One Contractor.

Commercial, residential, emergency — every HVAC and refrigeration need from Chicago to Milwaukee.

Get a Free Quote

Commercial HVAC Repair & Maintenance

Rooftop units, split systems, multi-zone setups — all major brands serviced by EPA certified technicians.

Commercial Refrigeration Repair & Maintenance

Refrigerant leak detection that goes beyond topping off — we find and fix the source permanently.

Walk-In Cooler Repair & Installation

Fast response before inventory is at risk. FDA 40°F temperature compliance verified every visit.

Walk-In Freezer Repair & Installation

Defrost systems, compressors, door heaters — same-day priority when product is at risk.

Commercial Ice Machine Repair & Maintenance

Manitowoc, Hoshizaki, Scotsman and more. Full repair, descaling, sanitization and maintenance.

Furnace Repair & Installation

Gas and electric furnaces for commercial and residential. Annual maintenance plans available.

Air Conditioning Repair & Installation

Central air, rooftop units, ductless mini-splits — all makes and models serviced and installed.

Heat Pump Installation & Repair

Cold-climate rated systems for IL and WI winters. Up to 50% energy savings vs traditional.

Refrigerant Leak Detection & Repair

Electronic, ultrasonic, and UV dye methods. We find leaks other contractors consistently miss.

Commercial Exhaust Fan & Makeup Air Services

Commercial kitchen ventilation — fire code and health department compliance guaranteed.

Chiller Repair & Maintenance

Glycol, air-cooled, and water-cooled chillers for breweries, food processing, commercial buildings.

Emergency HVAC & Refrigeration Repair

When your business can't wait. Priority dispatch across the full Chicago–Milwaukee corridor.

Industries We Serve

Built for Your Business.

From FDA food safety compliance to franchise corporate standards — we know the requirements of every industry we serve.

Restaurants & Food Service

FDA compliance, walk-ins, ice machines, exhaust fans

C-Stores & Gas Stations

Multi-deck coolers, freezer cases — we serve 7-Eleven

Fast Food & Franchises

McDonald's, Subway, Jimmy John's approved contractor

Grocery & Supermarkets

Display cases, walk-ins, rack systems, full-store HVAC

Healthcare Facilities

Hospitals, nursing homes, pharmacy vaccine refrigeration

Warehouse & Cold Storage

I-94 distribution centers, cold chain logistics

Bars, Breweries & Beverage

Glycol chillers, draft systems, wine cellar cooling

Hotels & Hospitality

PTAC units, kitchen refrigeration, Lake Geneva resorts

Food Manufacturing

USDA/FDA compliant, process cooling, HACCP documentation

Why Delfino

The Extra Mile, Every Time.

Since 2017 we've built a reputation on one thing — doing what other contractors won't.

We Fix Leaks. Not Symptoms.

While competitors add refrigerant and move on, we use three detection methods to find and permanently repair the source — saving customers thousands in repeated service calls.

10+ Years Per Technician

No apprentices on your equipment. Every technician is EPA certified with 10+ years of hands-on commercial HVAC and refrigeration experience.

45-Day Warranty on Every Job

Every repair, every part. If something we fixed comes back within 45 days, we return at no charge — no questions asked.

Local, Fast, and Reliable

Headquartered in Antioch, IL — we know this corridor and respond faster than any out-of-area contractor.

45-Day

Parts & Labor Warranty on every repair — if it fails within 45 days, we fix it free, guaranteed.

10+

Years experience per technician

Cities across IL & WI

24/7

Emergency line available

Core services all in-house

EPA

Section 608 certified

Ready to work with a contractor who actually fixes the problem?

Free quote · Same-day emergency dispatch · 45-day warranty on every job

Call 847-650-6444 Get Free Quote

Delfino HVAC technician performing refrigerant leak detection

$2K+

Avg. savings vs
repeated top-offs

The Delfino Difference

Other Contractors Top Off & Leave. We Don't.

Every time a contractor adds refrigerant without finding the leak, you pay again next visit. Delfino stops the cycle permanently — using 3 methods no other contractor in the area offers.

Electronic Leak Detection

Refrigerant-specific sensors locate leaks invisible to the eye.

Ultrasonic Detection

Finds leaks in noisy commercial kitchen and industrial environments.

UV Dye Injection

Pinpoints leaks that evade all other detection methods.

How It Works

Simple Process. Fast Results.

Getting your equipment back online shouldn't be complicated.

Call or Request Online

Reach us at 847-650-6444 or submit a quote request. Describe the issue and we'll arrive prepared.

Rapid Dispatch

Emergencies get same-day priority. Routine work scheduled at your convenience.

Diagnose & Quote

Full diagnostic on arrival. Upfront pricing explained before any work begins.

Repair & Warranty

We fix it right the first time. All repairs backed by our 45-day parts and labor warranty.

Call 847-650-6444 Get Free Quote

Service Area

Chicago to Milwaukee. 83 Cities.

Headquartered in Antioch, IL — fast response across all of northern Illinois and southeastern Wisconsin.

Illinois

Lake County McHenry County Waukegan Gurnee Libertyville Vernon Hills Wheeling Northbrook Schaumburg Crystal Lake Elgin Arlington Heights North Shore +47 more →

Wisconsin

Kenosha County Racine County Milwaukee County Waukesha County Kenosha Milwaukee Racine Lake Geneva Brookfield Wauwatosa Pleasant Prairie +21 more →

Find your city

Service Corridor

Antioch, IL HQ

Milwaukee, WI

Chicago, IL

← HQ: ANTIOCH

Cities

States

~120mi

Corridor

— Client Reviews

What Our Clients Say

Frequently Asked

Common Questions.

For critical emergencies — product loss, food safety concerns, or safety hazards — we prioritize same-day response across our full Chicago-to-Milwaukee service area. Call 847-650-6444 and let us know it's urgent.

Most contractors add refrigerant and leave. We use electronic, ultrasonic, and UV dye detection to find and permanently repair the leak source — saving customers thousands in repeated service calls and rising refrigerant costs.

Yes. We service all major brands including True, Turbo Air, Beverage-Air, Traulsen, Hussmann, Manitowoc, Hoshizaki, Copeland and more. For HVAC: Carrier, Trane, Lennox, York, Daikin, Goodman, and all others.

All repairs are backed by a 45-day parts and labor warranty specific to the repair performed. If an issue arises with work we completed within that window, we return at no additional charge — no questions asked.

Yes. Customized maintenance plans tailored to your equipment, business type, and schedule. Plans include bi-annual inspections, filter replacements, coil cleaning, refrigerant verification, and priority emergency response.

Yes. Our specialty is commercial HVAC and refrigeration, but we serve residential customers throughout our service area for furnace repair, air conditioning repair, heat pump installation, and general HVAC maintenance.

Emergency Line Active

Equipment down?
Don't wait.

847-650-6444

Every hour of downtime costs money. Call now and we'll dispatch a technician as fast as possible.

Call Now — 847-650-6444 Request a free quote online

Coverage includes

Lake County IL McHenry County IL Kenosha WI Milwaukee WI Racine WI +78 more

Get Started

Stop Worrying About Equipment Failures.

Request a free estimate on any commercial or residential HVAC and refrigeration service. EPA-certified technicians ready to help.

Phone

847-650-6444

info@delfinohvac.com

Location

Antioch, IL — Chicago to Milwaukee

Mon–Fri: 7:00am – 6:00pm · Sat: 8:00am – 2:00pm
Emergency line available beyond business hours

Request a Free Quote

First Name *

Last Name *

Phone *

Email *

Business Name (optional)

Service Needed *

Message

We respond within 2 hours during business hours · All work backed by 45-day warranty

Commercial HVAC & Refrigeration Experts.

We Find the Leaks Others Miss.

Walk-In Down at 2 AM? We Respond.

McDonald's. 7-Eleven. Subway. They Trust Us.

Walk-In Cooler Down?

12 Services. One Contractor.

Commercial HVAC Repair & Maintenance

Commercial Refrigeration Repair & Maintenance

Walk-In Cooler Repair & Installation

Walk-In Freezer Repair & Installation

Commercial Ice Machine Repair & Maintenance

Furnace Repair & Installation

Air Conditioning Repair & Installation

Heat Pump Installation & Repair

Refrigerant Leak Detection & Repair

Commercial Exhaust Fan & Makeup Air Services

Chiller Repair & Maintenance

Emergency HVAC & Refrigeration Repair

Built for Your Business.

Restaurants & Food Service

C-Stores & Gas Stations

Fast Food & Franchises

Grocery & Supermarkets

Healthcare Facilities

Warehouse & Cold Storage

Bars, Breweries & Beverage

Hotels & Hospitality

Schools & Institutions

Food Manufacturing

The Extra Mile, Every Time.

We Fix Leaks. Not Symptoms.

10+ Years Per Technician

45-Day Warranty on Every Job

Local, Fast, and Reliable

Ready to work with a contractor who actually fixes the problem?

Other Contractors Top Off & Leave. We Don't.

Electronic Leak Detection

Ultrasonic Detection

UV Dye Injection

Simple Process. Fast Results.

Call or Request Online

Rapid Dispatch

Diagnose & Quote

Repair & Warranty

Chicago to Milwaukee. 83 Cities.

Illinois

Wisconsin

— Client Reviews

What Our Clients Say

Common Questions.

Equipment down?Don't wait.

Stop Worrying About Equipment Failures.

Request a Free Quote

Equipment down?
Don't wait.