Commercial HVAC
Commercial HVAC Maintenance in Hermann, MO
Commercial HVAC maintenance in Hermann is timed to the town's calendar: cooling checked before Maifest and the first hot stretch, heat checked before Oktoberfest and the first freeze. For property managers and building owners, that means fewer surprises and a record of every unit.
- 4.7 on Google(15 reviews)
- Serving Hermann since 1998
- Office at 124 E 10th St
What each seasonal visit includes
Two visits a year is the working baseline: one for cooling, one for heating. Each covers specific deliverables, and you should get all of them in writing.
| Spring cooling visit | Fall heating visit |
|---|---|
| Replace or inspect filters | Replace or inspect filters |
| Clean condenser coils | Inspect burners and ignition |
| Clear condensate drain and trap | Check flame sensor and safeties |
| Test capacitors, contactors, motors | Check venting and heat exchanger |
| Check belts and blower amperage | Check belts and blower amperage |
| Read the refrigerant circuit | Test heat rise and thermostat response |
| Test economizer and damper travel | Close or set dampers for winter |
Every visit ends with a unit-by-unit note of what was found, what was replaced and what we recommend next. Anything that needs a repair gets quoted first.
ASHRAE and ACCA publish Standard 180, a minimum practice for inspecting and maintaining commercial HVAC. Treat it as a floor for any written scope, and ask a contractor how their checklist compares.
Need Commercial HVAC Maintenance?
Our office is open Monday to Friday, 8 AM to 4 PM. Call and we will sort out the next step.
When should Hermann buildings schedule planned maintenance?
Book by the local calendar, not the first hot day. Hermann's Maifest falls on the third weekend in May and Oktoberfest runs the first four weekends in October (Wikipedia), and those are the days a tasting room, inn or shop cannot be without air.
- March to April: first cooling visit, before the demand comes.
- Late May to June: a coil rinse if your unit sits near the river, once cottonwood fluff is down.
- September: heating visit, ahead of Oktoberfest and about 116 freezing nights a year (BestPlaces).
Service agreement or call as needed?
Choose by how many units you run and who gets the phone call when one fails. Here is how the three common setups compare.
| Option | How it works | Suits | Watch for |
|---|---|---|---|
| Call as needed | No schedule, you book when something fails | One small unit, low stakes | Filters get forgotten, and failures arrive in peak season |
| Booked seasonal visits | You approve spring and fall visits each year | Small shops, inns, single buildings | Someone has to remember to book |
| Written HVAC service agreement | Scope, units and visit dates set out in advance | Property managers, multi-tenant buildings | Read what parts, repairs and travel are excluded |
Whichever you choose, ask us to quote the scope. We do not publish plan pricing, and the right schedule depends on your equipment.
What planned maintenance is worth
The return shows up as fewer failures on the worst day, not as a number on a bill. A serviced unit keeps its coils clean, its drain open and its dampers moving, so it runs closer to the way it was built to run. Three benefits are easy to see:
- Budgeting. Unit-by-unit notes show which equipment is near the end, so a replacement becomes a planned spend.
- Tenant relations. A property manager can show the date and the work when a comfort complaint arrives.
- Compliance. Records of refrigerant added help if a unit falls under EPA's leak repair rules, which from January 2026 cover certain HFC appliances of 15 pounds or more, though light commercial equipment is excluded.
How a commercial filter service and visit runs
- We walk the building with you and list each unit, its filter size and its access.
- You tell us which days are off limits and who needs notice.
- We set the spring and fall visit dates.
- We carry out the seasonal checks, unit by unit.
- We send the record, with repairs quoted separately for your approval.
What commercial HVAC maintenance does not cover
Exclusions belong in the open, so nobody is surprised later.
- Repairs. Failed parts found on a visit are quoted separately. See commercial repair.
- Refrigeration. Walk-in coolers and restaurant cases are not HVAC.
- Kitchen hood grease cleaning. That is a separate trade.
- Duct cleaning. Available as its own job through air duct cleaning.
- Roof repairs. We will point out a failed curb seal, but your roofer owns the membrane.
What moves the cost of a maintenance schedule?
Unit count, access, filter type and visit frequency set the price. OxMaint, a maintenance-software company, put 2026 national contract benchmarks at $0.08 to $0.14 per square foot a year for labor only, and $0.20 to $0.35 for full coverage. Those are vendor figures, not our prices, and a small Hermann building may not scale that way.
Why Brian Grannemann Services for building maintenance
- We have been based on E 10th St in Hermann since 1998, so a building owner can stop in and talk to the front desk.
- A booked visit only works if someone arrives, and Stephanie H.'s review says Brian consistently does.
- Heating, cooling, electrical and plumbing are all on our trade list, so one walkthrough can flag more than one problem.
From Hermann we schedule buildings in New Haven, Berger, Owensville and Washington. Our property manager checklist has the monthly tasks. Send your unit list or call (209) 563-1270.
Calling is fastest
Ask about Commercial HVAC Maintenance
Calling gets you an answer sooner, especially if the house is cold or hot right now. If it can wait, send the details and our office will get back to you during business hours.
Smell gas? Do not use this form. Leave the building and call from outside.
What customers say on Google
4.7 on Google(15 reviews)“During one of the coldest days in decades, and with fresh snow falling, Brian came out to our house this evening to repair our faulty furnace so we would have heat. He didn't hesitate to make the trip out. Cannot express how much we appreciate his efforts and care. I highly recommend his company for your HVAC needs. Thank you!”
“Hot water heater went out and Brian worked with us to help us find the correct replacement parts, and the repair process. He is knowledgeable, reliable and very responsive. He came out saw that we needed one more possible part and said he wouldn’t charge us labor until the water heater was up and running. We got the right parts he came out to install and had us up and running! We will definitely rely on him again for any future issues with HVAC, water heater, and or plumbing issues! It’s so nice to have hot water again!”
“I can’t say enough good about Brian and his company. They are my go to guy’s. I’ve had them work for me about a half dozen times now. No need to look elsewhere. They are fair and responsive to your needs.”
Good to know
Commercial HVAC Maintenance questions
What is the difference between planned maintenance and a repair visit?
Planned maintenance is booked ahead and looks for wear on equipment that still runs. A repair visit answers a failure. A seasonal check can usually be set for a slow morning, while a breakdown picks its own time, which on a Hermann storefront tends to be the busiest weekend.
Do you offer a preventive maintenance contract?
Call and ask what fits your building. We do not publish a plan or a price list here, because a shop with one unit and a building with six need different schedules. Send the equipment list and we will put together a clear, upfront quote for seasonal visits.
What should a property manager keep in HVAC records?
Keep one page per unit: model, serial, install date, refrigerant type, filter size, and the date of every visit with what was found and replaced. Add refrigerant added, by amount. That file answers tenant complaints, supports repair-or-replace decisions and is useful when a building sells.
Can maintenance visits work around tenants and guests?
Yes, with notice. Tell us which tenants need a heads-up, who holds keys and which days are off limits. Inns and tasting rooms in Hermann usually prefer early weekdays because their weekends run full, and rooftop-only work often needs no one inside at all.
Who should change filters in a small commercial building?
Whoever will actually do it on time. Ground-level filters can sit with your own staff, provided someone logs the date. Rooftop filters need safe roof access, so most owners add them to a contractor's visit. Agree the size, the grade and the interval in writing.
Where we handle commercial hvac maintenance
- New HavenRiverside town with historic homes.
- BergerSmall town on the Berger Bottom along Route 100.
- OwensvilleSmall-town homes and shops south of Hermann.
- WashingtonRegional hub with historic and newer housing.
- RhinelandDirectly across the river, with flood-aware rebuilt homes.
- MorrisonRoute 100 community with older farmhouses.
- Gasconade CountyRural homes, historic Hermann and scattered farms with propane heat.
- Franklin CountyMix of commuter towns and working farms.
- Warren CountyRural growth spreading from the St. Louis metro.
Related services
Read next
Based at 124 E 10th St in Hermann, we work across Gasconade County and the towns around it, including Owensville, Morrison, Rhineland, Berger. See all the areas we serve.
Commercial HVAC Maintenance from a Hermann company
A Hermann company since 1998. Tell us what is going on and we will tell you what happens next.
- 4.7 on Google(15 reviews)
- Serving Hermann since 1998
- Office at 124 E 10th St