Nimbus Mechanical technician servicing a residential air conditioning system

HVAC Services — Chicago, IL

Expert HVAC service, repair, and installation.

Residential and light commercial. From a no-heat call in January to a full system replacement, our licensed technicians handle every part of your HVAC system — with the same attention whether it's a tune-up or a major install.

Licensed technicians. 20+ years of experience.

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What we handle

Every part of your HVAC system.

From emergency repairs to planned installs, we cover the full scope of residential and light commercial HVAC work.

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Repair & diagnostics

Accurate diagnosis, efficient repair. Furnaces, AC units, heat pumps, air handlers. We fix it right the first time.

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System installation

New system installs for residential and light commercial. We size, specify, and install — no overselling, no undersizing.

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Seasonal tune-ups

Spring AC tune-up and fall furnace tune-up. Catches small issues before they become expensive ones.

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Indoor air quality

Filter upgrades, humidity control, ventilation assessment. The air inside your home matters as much as the temperature.

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Ductwork

Duct inspection, sealing, and repair. Leaky ducts quietly drain efficiency — most homeowners don't know they have the problem.

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Maintenance plans

Prefer a set-it-and-forget-it approach? Our annual plans cover HVAC tune-ups plus the rest of your home systems.

See plans →

Why it matters

Why your HVAC system needs regular attention.

Chicago's climate puts real stress on HVAC systems. Furnaces run hard from November through March. AC units push through humid summers. Most system failures don't happen without warning — they happen after months of small inefficiencies that a tune-up would have caught. A well-maintained system lasts 15–20 years. A neglected one rarely makes it past 10.

System lifespan

15–20 yrs

Lifespan of a well-maintained HVAC system.

Energy waste

Up to 30%

Energy wasted by a system running with dirty filters or leaky ducts.

Recommended frequency

2x / yr

Recommended service frequency to maintain efficiency and warranty coverage.

Who we work with

Residential

Homes, condos, and multi-unit buildings.

We work in single-family homes, condos, and multi-unit buildings throughout Chicago's north side. Whether you're managing one furnace or a building with multiple units, we bring the same licensed, methodical approach to every job.

Light commercial

Small offices, retail, and mixed-use buildings.

Small offices, retail spaces, and mixed-use buildings. We understand that downtime is expensive in a commercial setting — we schedule around your business and communicate clearly at every step.

Have questions about your HVAC system?

Not sure what you need, or want to know what a tune-up covers? Send us a message and we'll get back to you same day.

Ask a question See maintenance plans