Commercial Rooftop Unit Repair in Howell, MI - Back Up and Running Today
A down RTU means a hot building, unhappy customers, and lost sales. We answer commercial calls fast, diagnose on the roof, and quote before we start. Call (517) 302-3764.
- Licensed & insured
- 24/7 emergency
- Authorized AirQuest Dealer
- Upfront pricing
Rooftop Unit Repair in Howell
A commercial rooftop unit going down in the middle of a business day is not something you can wait on. Restaurants lose customers. Retail loses foot traffic. Offices lose productive hours. Grocery and food service risk product loss. We service commercial buildings across the Howell area with same-day response and clear pricing.
Signs you need rooftop unit repair
Common signs an RTU is failing: warm air blowing when cooling should be running, no heat when heating should be running, breakers tripping, water running down the side of the building, loud grinding or squealing from the roof, or the unit short cycling all day. Kitchen exhaust hoods pulling too hard on the building or make-up air not balancing right are also signs the RTU is not keeping up.
Running a struggling RTU makes it worse fast. A weak compressor left alone burns out. A shorted contactor melts wiring. A clogged condensate drain floods the ceiling below. In restaurants, a hot kitchen can trigger safety issues with staff and food temperature. Fast diagnosis limits damage and downtime.
Most RTU repairs come down to standard commercial parts. Contactors, capacitors, condenser fan motors, blower motors, belts, and drive pulleys are common fixes done in one visit. Refrigerant leaks need proper leak search and repair, not a top-off. Gas heat section repairs include ignitors, gas valves, pressure switches, and inducer motors. Control board and thermostat issues are diagnosed with the same tools we use on residential but with commercial-scale meters.
If the unit is beyond economical repair, we walk you through Rooftop Unit Installation options. To stop repeat calls, a scheduled Rooftop Unit Maintenance program keeps the equipment running through peak season. See the full commercial lineup on Commercial HVAC.
Our rooftop unit repair options
Rooftop Unit Repair for Howell homes and businesses
Commercial spaces around Howell, from restaurants on Grand River to retail off M-59 to offices in Brighton and South Lyon, all run RTUs hard. Michigan summers with high dew points load the cooling side. Michigan winters load the gas heat section. We know the failure patterns and stock the common parts.
We service commercial RTUs across Hartland, Fenton, Milford, Highland, Ann Arbor, and Lansing.
What to expect
You call, we answer. We get the unit info and building address, dispatch, and give you an ETA. The tech goes to the roof, diagnoses, and comes down with a written price before starting. Commercial service calls start higher than residential based on distance and complexity but we tell you the number up front. Most RTU repairs finish the same visit.
Why choose us for rooftop unit repair
Family-owned in Howell with commercial experience. Michigan Mechanical License No. 7119201, insured, Authorized AirQuest Dealer, twenty-plus years of owner experience. Same-day commercial response. Upfront pricing. No surprise change orders after we start.
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Rooftop Unit Repair questions Howell homeowners ask
How fast can you get out for rooftop unit repair in Howell?
Most rooftop unit repair calls in Howell and the surrounding Livingston County towns are handled the same day. Call (517) 302-3764 and we will give you a real arrival window, not a four-hour block.
Do you charge a diagnostic fee for rooftop unit repair?
Yes, there is a flat diagnostic fee for the trip and the time it takes to identify the problem. If you approve the repair, we roll that fee into the total. You always see the number before we start work.
Are you licensed and insured?
Great Lakes Comfort holds Michigan Mechanical Contractor License No. 7119201 and carries full liability and workers' comp insurance. We pull permits when the job requires one.
Do you offer financing on rooftop unit repair?
We offer financing on qualifying installations and larger repairs, including 0% promotional plans for approved credit. Ask when you call and we will walk you through the options.
Rooftop Unit Repair across Howell and Livingston County
Based in Howell, MI - dispatching to Brighton, Hartland, Fenton, Milford, South Lyon, and the surrounding communities.
Request 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
Get help today
RTU down and customers walking out? Call (517) 302-3764 right now and we will get someone on the roof today.
Visit Great Lakes Comfort, your local HVAC contractor in Howell, MI.