Rooftop units keep restaurants, stores, warehouses and offices comfortable — until they don't. Daily Giants installs and services package rooftop units (RTUs) of all brands and make-up air units across Chicago and the suburbs, with free rooftop quotes, custom curbs fabricated in our own shop, 24/7 service and a 2-hour emergency response for established accounts.

Package rooftop unit replacement and new installation (gas/electric, electric, heat-pump), RTU repair and seasonal maintenance, make-up air units sized to kitchen exhaust, split systems and ductless for offices and back rooms, thermostats and building controls, ductwork and diffusers, and the curbs, adapters and transitions fabricated in our shop so replacements fit existing roof openings.
All brands — Trane, Carrier, Lennox, York, Daikin, Rheem, Goodman. Crane coordination, gas and electrical done in-house.
Compressors, blower and condenser motors, ignition, economizers, boards and controls, refrigerant leaks.
Units matched to your hood exhaust so the kitchen stays balanced and the dining room stays comfortable.
Custom rooftop curbs, curb adapters and transitions fabricated by Daily Work Shop.
Commercial thermostats, zoning and building controls; economizer setup for free cooling.
Quarterly and seasonal RTU maintenance under planned maintenance agreements.
Replace when the RTU is 15–20+ years old, the compressor or heat exchanger has failed, it uses phased-out R-22 refrigerant, or repair costs exceed half of a new unit. A new high-efficiency RTU with an economizer cuts energy use substantially, and because we fabricate curb adapters in-house, the replacement usually drops onto the existing curb in a single day.
Rooftop quotes are free. Price depends on tonnage, gas or electric heat, efficiency, curb work and crane access, so we survey the roof, measure the existing curb and quote the complete job — unit, curb adapter, crane, gas, electrical and start-up — as one number with no surprises. Maintenance-agreement customers save 15% on parts and labor.
Yes — it is a specialty. Restaurant kitchens need exhaust hoods, make-up air and dining-room HVAC to work as one balanced system; because we design and fabricate hoods, install make-up air units and service rooftop units, one company owns the whole airflow problem. Established accounts get a 2-hour emergency response when a unit fails during service.
All brands — Trane, Carrier, Lennox, York, Daikin, Rheem, Goodman and others. We recommend the best fit for your building, budget and available rebates.
Most single-unit replacements are completed in one day, including crane lift, curb adapter, gas and electrical connections and start-up.
Yes. Quarterly or seasonal RTU maintenance — filters, belts, coils, refrigerant, electrical and economizer checks — under planned maintenance agreements with 15% off parts and labor.
Yes. Daily Work Shop fabricates custom curbs, curb adapters and transitions so a new unit fits an existing opening without roof work.
Yes. 24 hours a day, 365 days a year, with a 2-hour emergency response for established accounts across Chicago and the suburbs.
A make-up air unit brings tempered fresh air into a kitchen to replace what the exhaust hood removes. Chicago code requires it for most commercial hoods; without it, doors are hard to open, the dining room is drafty and the hood does not capture properly.
Family-owned since 1987 · 24/7 · 2-hour emergency response · Free service call on established accounts · Se habla español