Contact Brian Grannemann Services
The fastest way to reach us is by phone. Our office at 124 E 10th St in Hermann is open Monday to Friday, 8 AM to 4 PM.
- 4.7 on Google(15 reviews)
- Serving Hermann since 1998
- Office at 124 E 10th St
Call or stop by
Brian Grannemann Services Inc
124 E 10th St, Hermann, MO 65041
Monday to Friday, 8 AM to 4 PM
Before you call
Have the address, the symptom and a photo of the equipment's data plate ready if you can. The model and serial number tell us the age of the system and what parts it takes.
Emergencies
If you smell gas or a carbon monoxide alarm sounds, leave the building first, and call from outside. Then read our emergency HVAC guide for what to do next.
Parking and access
Our office is at 124 E 10th St, near Schiller Street in Hermann. Call before you stop by if you want to be sure someone is in, because the office may be out on calls.
Directions from the main highways
- From I-70: take the New Florence exit and follow Highway 19 south across the Missouri River into Hermann.
- From I-44 or US 50: head north on Highway 19 through Owensville into town.
- From Washington and the east: follow Highway 100 west along the river.
Once in town, ask for directions to 10th Street if your map app struggles. Our Get Directions button opens the route for you.
Other ways to find us
We are on Facebook and Google. Have you worked with us? We would be glad to read your review on Google.
Good to know
Common questions
What should I have ready when I call?
Your address, the symptom and a photo of the data plate on the equipment if you can get one. The plate shows the model, serial number and age. That helps us work out what is likely wrong and bring the right parts, which matters most when you are a long drive from Hermann.
Should I call or use the form?
Call if the house is cold or hot right now, or if anything seems unsafe. Use the form for planning a replacement, a tune-up or a question that can wait. Our office answers forms during business hours, Monday to Friday, 8 AM to 4 PM.
What do I do if it is an emergency after office hours?
If you smell gas or a carbon monoxide alarm is sounding, get everyone outside first and call 911 and your gas provider from there. For a heating or cooling failure, call us and tell us what is happening. Our emergency page explains what to do while you wait.