Commercial HVAC in Howell, MI - Fast Service for Your Business
When your rooftop unit fails, staff and customers feel it in minutes. We service commercial HVAC 24/7 across Livingston and Oakland County. Call (517) 302-3764 for same-day dispatch.
- Licensed & insured
- 24/7 emergency
- Authorized AirQuest Dealer
- Upfront pricing
Commercial HVAC in Howell
A hot lobby, a cold retail floor, or a warm walk-in cooler costs you sales and puts staff on edge. You have probably already checked the thermostat, reset the disconnect, and called the landlord. You are in the right place. Great Lakes Comfort works on commercial rooftop units and light commercial systems every week across Howell, Brighton, and the surrounding towns, and we can usually be on-site the same day.
What we fix
The most common commercial HVAC problems we see are RTUs stuck in one mode, dirty economizers that will not open, blown belts, failed compressors, tripped high-limit switches, and thermostats that lose communication with the unit. In restaurants and kitchens we also see exhaust hoods and make-up air units that fall out of balance and pull negative pressure on the dining room.
DIY on a commercial rooftop is not realistic. The units sit two stories up, they carry 208V or 460V three-phase power, and the refrigerant circuits are larger than residential. Untrained work can violate your building code, void your warranty, and put people in danger. This is work for a licensed commercial HVAC contractor.
We keep small and mid-size commercial buildings comfortable across Livingston County. Here is what our commercial team handles:
Most calls start with Rooftop Unit Repair. Our trucks are stocked with common motors, contactors, capacitors, belts, and refrigerant, so many repairs are finished in one visit. When an RTU is past its useful life, we walk you through Rooftop Unit Installation, including load calc, crane rental, curb adapter, gas and electrical, and pulling the permit.
To keep units off the emergency schedule, we set up Rooftop Unit Maintenance on a spring and fall cycle. Filters, belts, coils, drains, refrigerant pressures, and safety controls all get checked and documented, so you have paperwork for corporate or your building owner. We work on retail, office, small warehouse, medical, and restaurant kitchens.
Every service call ends with a written report, before and after photos when helpful, and a clear scope for any follow-up work.
What we do
Commercial HVAC for Howell homes and businesses
Livingston County has a mix of downtown Howell storefronts, strip retail along Grand River, and newer commercial parks near Hartland, Brighton, and South Lyon. Each building type has its own quirks. Older downtown buildings often have undersized electrical service and tight roof access. Strip centers commonly share roof drainage and gas lines. Newer buildings toward Highland and Milford tend to have larger single-zone RTUs that need proper economizer set-up.
Local experience is a real advantage. We know the local inspectors, we work with the crane companies in the area, and our trucks reach most sites in Livingston and western Oakland County quickly. That means less downtime for your business.
Why choose us for commercial hvac
Great Lakes Comfort is a locally owned, licensed HVAC contractor (MI Mechanical License No. 7119201) with more than 20 years of hands-on experience, including light commercial and restaurant work. We answer the phone 24/7, dispatch same day on most emergency calls, and provide clear upfront pricing before any work begins.
As an Authorized AirQuest Dealer, we install manufacturer-backed equipment with strong parts and labor warranties.
Commercial HVAC services we offer
Rooftop Unit Repair
Fast repairs on commercial RTUs so your business stays open and comfortable.
Rooftop Unit Repair details 02Rooftop Unit Installation
Crane-set RTU installs sized for your building, with permits pulled.
Rooftop Unit Installation details 03Rooftop Unit Maintenance
Scheduled PMs that keep RTUs efficient and out of the emergency queue.
Rooftop Unit Maintenance details 04Walk-In Refrigeration
Service, repair, and installation for walk-in coolers and freezers.
Walk-In Refrigeration detailsRequest service - we'll respond within 48 hours.
Need help faster? Give us a call - a real person answers 24/7 and we can often get you on the same-day schedule.
Not urgent? Fill out the form and we'll get back to you within 48 hours (usually much sooner during business hours).
Call (517) 302-3764Open 24 hours - 7 days a week
Find Us on the Map
Based in Howell, MI - serving Livingston County and southeast Michigan.
Ready for reliable service?
Do not lose another hour of business to a broken RTU. Call (517) 302-3764 for same-day commercial HVAC service across Howell and Livingston County. Our phones are answered 24/7.
Need to see the full picture? Visit our Howell, MI HVAC contractor home page to see everything Great Lakes Comfort offers.