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Residential HVAC
From furnace tune-ups to complete air conditioning installations, we keep Chicago homes comfortable through every season.
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5-star service for Chicago's business & home owners. When your HVAC system fails, you need someone who shows up fast and fixes it right.
Every technician is fully licensed, bonded, and insured for your protection.
Show-up-on-time service backed by 24/7 emergency response.
Locally owned in Chicago — invested in serving this community for the long term.
Northstar HVAC/R was founded on a simple principle: Chicago deserves reliable heating and cooling service from people who actually understand this market. We've seen too many property owners struggle with contractors who overpromise and underdeliver.
Our team brings decades of combined experience to every project — from emergency repairs in downtown office buildings to complete system replacements for family homes.
Learn more about usWhether you need emergency repairs, routine maintenance, or complete system installations, we deliver professional service that keeps your property comfortable year-round.
From furnace tune-ups to complete air conditioning installations, we keep Chicago homes comfortable through every season.
Learn moreDowntime costs money. We work efficiently to keep your business operations running smoothly with minimal disruption.
Learn moreWe keep your commercial refrigeration systems running reliably — protecting your inventory and the temperatures your business depends on.
Learn moreSmart building solutions give you complete control over your HVAC systems, optimizing energy efficiency and reducing operational costs.
Learn moreRegular maintenance prevents costly breakdowns and extends your system's life. We'll create a schedule that fits your needs and budget.
Learn moreTalk to a real person — no phone tree, no sales pitch. Free, no-obligation quote.
There's a reason Chicago property owners keep choosing Northstar HVAC/R. Here's what sets us apart.
We accept cash, check, credit cards, and offer financing options for qualified customers.
Built our reputation by consistently showing up on time and diagnosing problems accurately.
Every technician is fully licensed, insured, and committed to the highest industry standards.
Straight answers and practical solutions, not sales pitches — every time.
We approach every project with the same care and attention we'd want for our own families' comfort and safety. These seven principles are the standard every Northstar technician is held to.
Your comfort is the only metric that matters. We don't leave a job until your home or business feels exactly the way it should — every season, every time.
Workmanship that meets the highest industry standards.
Real humans, straight answers, no scripts.
Show up on time. Diagnose accurately. Fix it right the first time.
24/7 emergency line. We answer when it matters.
We stake our reputation on every job we complete.
Honest pricing. Plain-English explanations. No surprise fees, ever. You'll always know what we're doing, why we're doing it, and what it costs before we start.
See the quality of our work firsthand through real projects we've completed for Chicago area businesses and homeowners.
Common questions from Chicago property owners. Don't see yours? Call us at (224) 398-9199.
From downtown high-rises to suburban homes, we're your local HVAC experts ready to keep you comfortable no matter where you're located.
Tell us what's going on and we'll get back to you within the hour during business times — or call now for instant 24/7 emergency dispatch.