Based in Nashville, Tennessee, Total Group helps customers throughout Middle Tennessee select, install, maintain, and repair home backup generator systems suited to their power requirements. We help you plan for interruptions before they happen.
Locally Owned & Staffed
Generator Emergency Service
Worry-free home backup power
Power outages can affect much more than your lights. A loss of electricity can interrupt heating and air conditioning, refrigeration, internet access, sump pumps, home security systems, and essential medical equipment.
A professionally installed home standby generator provides automatic backup power when utility electricity is interrupted. Total Group helps homeowners choose a system based on their home’s electrical demands, priorities, and available fuel source.
Whether you want to maintain power throughout your entire home or keep essential circuits running, we can help you explore the options and plan a system around your needs.
The right system depends on your electrical load, fuel supply, equipment requirements, and installation conditions.
Automatic Backup Power
A standby system detects a utility outage and starts automatically when configured to do so.
Protection for Everyday Essentials
Help keep refrigerators, lighting, communications, and other selected systems operating.
Whole-Home or Essential-Circuit Coverage
Select a system designed to support your entire home or prioritize critical appliances and equipment.
Convenience During Extended Outages
Permanently installed generators using natural gas or propane can avoid the need for routine gasoline refueling.
Heating and Cooling Continuity
Maintain access to selected HVAC equipment when the system is properly sized for the electrical load.
Greater Preparedness
Be better prepared for severe weather and unexpected interruptions to utility power.
A whole-home standby generator is permanently installed outside your house and connected to your electrical system through appropriate transfer equipment. When utility power fails, the system can start automatically and restore power to the circuits it is designed to support.
Total Group helps homeowners evaluate generator capacity, determine which electrical loads need backup power, and identify an appropriate system for the property.
Our residential generator services include:
Every installation is planned around the property’s requirements, applicable codes, and the selected generator manufacturer’s specifications.
The decision usually comes down to one question: does natural gas service reach where the generator has to sit? If it does, natural gas is the easier long-term answer. If it doesn’t, propane keeps you independent of the utility entirely.
Runs indefinitely off the utility line — the closest thing to never thinking about fuel again.
Complete independence from the utility — the right answer when natural gas isn’t available at your property.
Either way, the fuel work is done in-house. Gas piping, regulators, and connections are handled by our own licensed technicians — so there’s one crew accountable for the whole installation, not a subcontractor you never meet.
Still deciding? Call our office and talk to someone local who installs these systems every week — no call center, no pressure.
The unit sits outside on a concrete pad and monitors your utility power continuously. When the power drops, it starts automatically, the automatic transfer switch moves your electrical panel to generator power within seconds, and it runs until utility power comes back — then it shuts down and resets itself for next time.
Size is set by a load calculation — what actually has to run at the same time — not by square footage alone. Most Middle Tennessee homes with one central HVAC system land in the 18–22 kW range, homes with multiple systems usually move up to 24 kW or more, and essentials-only setups can work well smaller. We measure it on site rather than guessing.
If a natural gas service can reach the generator pad, natural gas is usually the better long-term answer: no tank, no refills, unlimited runtime. If it can’t reach, propane keeps you independent of the utility with a tank and periodic refills. We handle the piping, regulators, and connections either way.
Yes — standby installations require electrical and, where applicable, gas permits, plus final inspections, and some neighborhoods also require HOA approval. We pull the permits and coordinate the inspections and approvals for you.
Most residential installations are completed in a single day once permits and equipment are in hand. The overall timeline from signed proposal to commissioning usually runs a few weeks, mostly driven by permitting and equipment lead time, and we keep you updated throughout.
Yes, when the system is sized for it. Air conditioning startup is the single largest load in most homes, which is why a whole-home setup may call for a larger unit — or a managed-load switch that momentarily sheds the compressor during startup to keep a smaller generator comfortable and affordable.
Standby units exercise themselves weekly, but they still need annual service: oil and filter, spark plugs, battery, valve clearance on air-cooled models, and a load test under real demand. We offer annual maintenance plans and 24/7 emergency repair so a unit that sat idle for a year isn’t a surprise on the night you need it.
Yes. We service and repair all major standby brands, including units installed by other companies, and we’ll tell you honestly when a repair makes sense and when replacement is the better call.
About like a central air conditioner running outside the house — noticeable standing next to it, but you generally won’t hear it from inside. Placement and clearances affect how much your neighbors notice, and we point that out during the site visit.
Yes. Generator projects qualify for approved financing, including promotional no-interest periods and extended terms, so you’re not writing one large check the week after a storm. See our financing page for how the plans work.
Our technicians are on call around the clock — nights, weekends, and holidays.
15115 Old Hickory Boulevard, Suite B
Nashville, TN 37211
From our Nashville base, our technicians provide fast, reliable service throughout the greater Middle Tennessee region — prompt response times guaranteed.
+ surrounding communities throughout Central Tennessee
Fill out the form and our team will respond promptly to schedule your service or provide a free, no-obligation quote.
Providing year-round comfort and reliability for homes and businesses across Middle Tennessee since 1996.
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