What should I do if my furnace fails during a subzero January evening in Downers Grove?

Call the 24-hour line immediately. Jacobazzi maintains around-the-clock availability for emergency diagnostics and temporary fixes to restore heating until permanent repairs can be scheduled.

How does Jacobazzi handle pricing for after-hours emergency service calls in the Romeoville area?

The company provides a service call fee quote before dispatch, with final costs dependent on parts required and complexity of the repair needed.

Can I request specific technicians when scheduling routine AC maintenance?

While same-technician requests cannot be guaranteed due to routing logistics, clients may note preferences in the scheduling request and the office attempts accommodation.

What documentation does Jacobazzi provide foriboiler installations requiring Village of Downers Grove permits?

They pull necessary mechanical permits, schedule inspections with village inspectors, and provide homeowners with finalized permit sign-off documentation upon completion.

Is Aeroseal duct sealing appropriate for a 1980s ranch home with original sheet metal ductwork?

Yes. Aeroseal addresses connection leaks and deterioration common in pre-1990 construction, with the process taking 4-6 hours and generating measurable airflow improvement.

Jacobazzi Heating & Cooling

HVAC contractor

4.4(59 reviews)

1240 83rd St, Downers Grove, IL 60516

(630) 985-7277

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About Jacobazzi Heating & Cooling

Jacobazzi Heating & Cooling operates as a fully licensed HVAC contractor serving DuPage County and Will County from its Downers Grove headquarters. The company maintains a strong community presence reflected in its 59 customer reviews averaging 4.4 stars, with a secondary office located in neighboring Romeoville. All service technicians carry NATE certification, confirming they have passed industry-recognized competency exams administered by the North American Technician Excellence organization. As a Comfort24-7 Provider, the company backs every installation and repair with a workmanship guarantee, offering clients recourse if expectations are not met.

This contractor distinguishes itself through specialized duct sealing technology using the Aeroseal system, which targets air leaks at the molecular level to improve whole-home efficiency by up to 25 percent according to manufacturer specifications. The company fabricates custom sheet metal components in-house rather than outsourcing, allowing same-day modifications during complex installations. Their service menu extends beyond conventional residential HVAC into commercial Variable Refrigerant Flow systems, generator deployment, and indoor air quality solutions including advanced filtration and UV purification. The technical breadth enables one-visit resolutions for properties combining heating, cooling, and ventilation upgrades.

Customer experiences captured in recent reviews reveal specific scenarios demonstrating service execution. One reviewer describes an aging furnace situation spanning two decades, requiring a provider the client could after moving away from a longtime technician, and notes the Jacobazzi team arrived punctually, communicated clearly, and completed the repair rapidly. Another review names Tony and Jim as the installation crew for a complete air conditioning replacement, emphasizing thorough cleanup and protection of interior finishes throughout the process. A third reviewer documents an emergency service call involving diagnostic evaluation, though the account diverges significantly from the positive experiences described elsewhere.

What Customers Say

Of 59 aggregate reviews averaging 4.4 stars, two positive accounts specifically commend individual technicians by name for punctuality and craftsmanship. One critical review details a billing dispute arising from a furnace repair invoice, while multiple five-star ratings emphasize the company's responsiveness and transparent communication regarding timing and scope.

4.4 · 59 reviews

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Working Hours

Sunday	Open 24 hours
Monday	Open 24 hours
Tuesday	Open 24 hours
Wednesday	Open 24 hours
ThursdayToday	Open 24 hours
Friday	Open 24 hours
Saturday	Open 24 hours

Services

Heating Installation & Replacement

New furnace and boiler installation including sizing calculations, permit acquisition, and post-install inspection compliance for Downers Grove code requirements.

Cooling System Installation

Central air conditioning and heat pump setup, addressing load calculations, refrigerant handling, and thermostatic integration with existing or new smart thermostat platforms.

Emergency Repair Services

24-hour diagnosis and repair response for heating failures, coolant leaks, electrical malfunctions, and component replacements across all system ages.

Ductwork Evaluation & Aeroseal Sealing

Whole-home duct leakage testing followed by automated Aeroseal application targeting invisible connection losses inaccessible through manual sealing methods.

Indoor Air Quality Solutions

Advanced filtration, UV germicidal lights, and ventilation assessments targeting asthma triggers, seasonal allergens, and humidity imbalance common in Northern Illinois basements.

Commercial HVAC Systems

Variable Refrigerant Flow unit installation and servicing for offices, retail spaces, and light industrial facilities requiring zoned temperature control.