Rooftop unit change-outs
Crane day to commissioning — curb adaptation, refrigerant piping, electrical, controls integration, and start-up. We coordinate the crane, the roof inspector, and the AHJ.
Service
Project Support
Equipment changeouts, retrofits, and system upgrades delivered by tradespeople who know the install — and the service that comes after. From a single furnace-and-coil swap to a building full of rooftop units.
What we deliver
Projects, sized to your scope.
We don't chase mega-projects we can't staff or one-day jobs that lose money. Our sweet spot is the work that's too complex for a handyman and too operational for a generalist GC.
Residential system replacement
Furnace, AC, and heat pump replacements done as proper projects — load calculation, right-sized equipment, code-compliant installation, and rebate paperwork filed for you.
Boiler & heating retrofits
End-of-life boiler replacement, high-efficiency conversions, and hydronic upgrades — scoped around an Illinois heating season so nobody goes cold mid-project.
Controls & thermostat upgrades
Smart thermostats, zoning, and equipment controls — coordinated with the mechanical work so the system actually runs the way the proposal said it would.
Tenant fit-outs
HVAC for tenant build-outs and remodels — sized to your space plan, sequenced around your construction schedule, commissioned to your standards.
Energy upgrades
Heat pump conversions, high-efficiency equipment, and controls optimization — with ComEd rebates and federal tax credits identified up front and the paperwork handled.
Why Comfort Indoor Solutions for projects
The crew that quotes it, installs it, and keeps it running.
Most mechanical projects suffer the same handoff problem: the company that sells the system hands it to an install crew, the install crew hands it to a service company, and the service company spends two years untangling assumptions nobody documented. We close that loop.
Our installers sit with our service techs. The job that hits the field — whether it's a furnace in a Bensenville two-flat or a row of rooftop units on a Schaumburg office — has been pressure-tested by the people who'll service it. The system you operate matches the proposal, because we wrote both. That's how you stay in business for nearly five decades.
- Scoped, quoted, and installed by one accountable team
- Load calculations and right-sized equipment — no guess-and-go
- Permits, inspections, and AHJ coordination handled
- ComEd rebates and federal tax credits identified up front
- Coordinated with our own service team — no handoff gap
- Financing available on qualifying residential systems
Have a project in mind?
Let's scope it together.
Send us your scope (or just the symptoms — "the boiler is at end-of-life and we're not sure what to do next" is a great starting point). We'll walk the site, develop options, and come back with a proposal.