Therrian Mechanical LLC
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About Therrian Mechanical LLC
Therrian Mechanical LLC holds a perfect 5.0-star rating across 12 verified client reviews, positioning the company as a highly recommended HVAC contractor serving Howell, Michigan and surrounding communities. The business operates Monday through Friday from 8 AM to 4 PM, providing residential heating and cooling services that emphasize responsive communication and thorough diagnostics.
The company distinguishes itself through a comprehensive service portfolio that covers both traditional and modern HVAC solutions. Their expertise spans furnace and air conditioning repair alongside new equipment installation, while also addressing growing demand for ductless mini-split systems and heat pump technology. Commercial HVAC services, advanced thermostat controls, and ventilation system work round out an offering that handles everything from routine maintenance to complex system upgrades.
Reviewers consistently highlight the company's rapid response capabilities and transparent pricing. One client described how a technician arrived within hours of their initial call during a heating emergency, completing repairs the same day. Another reviewer noted significantly lower refrigerant costs compared to competing quotes, while a third praised the technician's willingness to explain system maintenance procedures and answer questions thoroughly.
What Customers Say
All 12 reviewers awarded 5 stars, with multiple clients specifically mentioning same-day emergency response, fair and competitive pricing compared to other area contractors, and the technician's willingness to educate homeowners on system maintenance.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–4 PM |
| Tuesday | 8 AM–4 PM |
| Wednesday | 8 AM–4 PM |
| ThursdayToday | 8 AM–4 PM |
| Friday | 8 AM–4 PM |
| Saturday | Closed |
Services
AC Repair & Maintenance
Diagnostic services and tune-ups for cooling systems, including refrigerant handling and component replacement.
Furnace Repair & Heating
Heating system diagnostics, emergency repairs, and routine service to restore and maintain warmth during Michigan winters.
AC Installation
New air conditioning system installation for residential properties, with sizing and equipment selection assistance.
Furnace Installation
Replacement furnace installation, helping homeowners select appropriately sized equipment for their property.
Ductless Mini-Splits
Installation and service of ductless mini-split systems for zoned heating and cooling without traditional ductwork.
Heat Pumps
Heat pump services including installation, repair, and maintenance for year-round heating and cooling efficiency.
Commercial HVAC Services
Heating and cooling solutions tailored for commercial properties and light business applications.
Thermostat & Controls
Installation and programming of smart thermostats and building automation controls for optimized system performance.
Ventilation
Ventilation system services to ensure proper air circulation and indoor air quality management.