Protect Your Investment with Professional Generator Maintenance

Your standby generator is one of the most important systems protecting your home. Regular generator maintenance helps ensure it is ready to start and provide dependable backup power when an outage occurs.
Mid Maine Generator provides annual maintenance agreements, repairs, warranty service, and professional generator service for homeowners throughout Maine. Whether you own a Kohler, Generac, or Briggs & Stratton standby generator, our trained technicians have the experience to keep your system operating safely and reliably.
- Annual Generator Maintenance Agreements
- Standby Generator Repairs
- Generator Warranty Service
- Priority Scheduling for Agreement Customers
- Kohler, Generac & Briggs & Stratton Specialists


Why Regular Generator Maintenance Matters
Most standby generators only run for a limited number of hours each year. However, when an outage happens, your generator becomes one of the most critical systems in your home.
Routine standby generator maintenance helps:
- Maximize the useful life of your generator
- Reduce the risk of unexpected breakdowns
- Identify small problems before they become expensive repairs
- Improve generator reliability during storms and power outages
- Support applicable manufacturer warranty requirements
- Ensure your generator starts and transfers power when utility service fails
Whether Mid Maine Generator installed your generator or another company did, contact our team to confirm service availability for your system.
We Service All Major Standby Generator Brands
Our technicians service and maintain many of the leading residential standby generator brands used throughout Maine, including:
- Kohler Generators
- Generac Generators
- Briggs & Stratton Generators
No matter which brand protects your home, our goal is the same: to provide dependable generator maintenance that gives you confidence before the next outage.
Annual Generator Maintenance Plan Pricing
Our Planned Major Service Agreement provides one comprehensive maintenance visit each year for one eligible residential air-cooled standby generator.
Planned Major Service Agreement for Air-Cooled Generators
- One planned major maintenance visit per year
- Coverage for one eligible air-cooled standby generator
- Maintenance completed during normal business hours
- Priority scheduling for additional service needs
- A written report following the annual service visit
The annual fee is $400 for one air-cooled generator and is subject to applicable sales tax. Additional repairs, replacement parts, emergency calls, dispatch fees, and services not specifically included in the agreement are billed separately.
What Is Included in Your Annual Generator Service?
During the annual planned major service visit, a Mid Maine Generator technician completes the following maintenance and inspection items as applicable to your generator:
- Replace the engine oil
- Replace the engine oil filter
- Check fuel pressure
- Service or clean air filters as required
- Inspect hoses and belts
- Inspect the complete ignition system
- Replace spark plugs as applicable
- Check engine heater operation
- Inspect the fuel supply system, piping, solenoid valve, and transfer tank where applicable
- Inspect the exhaust system and drain condensation when a drain provision is available
- Check battery charger operation and charge rate
- Load test the generator battery
- Clean and protect battery terminals as needed
- Check engine and generator shutdown and alarm systems as applicable
- Adjust generator output voltage and frequency as required
- Confirm proper operation of engine gauges and AC metering
- Inspect the transfer switch main contacts when accessible
- Operate the transfer switch after notifying the customer
- Confirm operation of transfer switch timers and accessories
- Prepare a report of the annual service visit
Our goal is to identify maintenance concerns before they leave your home without dependable backup power.
Generator Battery Coverage
Generator batteries do not last forever. Customers may qualify for additional battery coverage when the maintenance agreement is started within one year of the generator's startup date and remains continuously active.
- Years one and two: Full generator battery warranty coverage
- Years three and four: Pro-rated battery replacement
- After year four: The customer pays for the battery, but replacement labor is covered when the battery is replaced during the annual service visit
Battery coverage is subject to the generator startup date, continuous enrollment, and the terms of the signed maintenance agreement.
Benefits of a Generator Maintenance Agreement
An active annual maintenance agreement makes it easier to keep your standby generator professionally serviced and provides valuable benefits when additional service is needed.
- One scheduled major maintenance visit each year
- Priority scheduling over customers without an active agreement
- Applicable straight-time labor rates for qualifying additional service
- Customers without an active agreement are subject to labor rates that are 20% higher per hour
- A written maintenance report after the annual service visit
- Battery coverage benefits for qualifying continuously enrolled generators
- Automatic annual renewal for uninterrupted maintenance coverage
The agreement renews automatically on its anniversary date unless either party provides notice. Either party may terminate the agreement with 30 days' written notice. Annual price adjustments may apply, with notice provided before service is performed.
Most scheduled maintenance visits can be completed without the homeowner being present, provided our technician has safe and immediate access to the generator and nearby parking.
Additional Service and Repair Charges
The $400 annual maintenance fee covers only the maintenance services specifically listed in the agreement. Additional repairs, parts, emergency calls, and other work are billed separately on a time-and-materials basis.
- Service calls not covered by a manufacturer's factory labor warranty are billed at the applicable labor rate.
- A separate dispatch fee applies to service calls not covered by the manufacturer's factory labor warranty.
- Customer-requested, non-emergency work outside normal business hours may include applicable overtime or weekend labor charges.
- All charges are subject to applicable sales tax.
The signed maintenance agreement contains the complete terms and controls the final scope of coverage.
We Service Generators We Did Not Install
Did another contractor install your standby generator? Did you purchase a home with an existing generator? Mid Maine Generator regularly services qualifying generators installed by other companies throughout Maine.
Contact our team with your generator brand, model, location, and recent service history. We will help determine the appropriate maintenance or repair service for your system.
Why Choose Mid Maine Generator?

Homeowners across Maine trust Mid Maine Generator because we focus on backup power. Our experienced team is committed to:
- Honest recommendations
- Highly trained generator technicians
- Responsive customer service
- Reliable scheduling
- Professional generator maintenance and repair
- Long-term customer relationships
From annual maintenance to generator repairs and warranty service, we are here to keep your backup power system ready when you need it most.
Keep Your Generator Ready for the Next Outage
Do not wait until the lights go out to discover your standby generator needs service.
Whether you own a Kohler, Generac, or Briggs & Stratton generator, Mid Maine Generator can help protect your investment and maintain dependable backup power for your Maine home.
Our Simple Maintenance Process
01. Contact Our Team
Call the office or request service online, whichever suits you.
02. Tell Us About Your Generator
We gather a few basic details -- brand, model if you know it, location, and photos where available -- so we arrive prepared with the right parts and information.
03. Schedule Your Appointment
We book your maintenance visit or, if needed, arrange a complimentary consultation to better understand your system first.
04. Complete Your Annual Maintenance
One of our certified technicians performs a complete inspection, maintenance service, and operational testing of your generator.
05. Receive Recommendations
If we find any concerns we explain them and recommend a course of action before any further work happens. No surprises, no unnecessary repairs -- just honest advice from experienced generator professionals.
Frequently Asked Questions
Most residential standby generators should receive professional maintenance once each year. Routine service helps maximize reliability and extends the life of your generator.
Yes. We service many generators originally installed by other contractors throughout Maine.
We routinely service Kohler, Generac, and Briggs & Stratton standby generators.
Not usually. Most customers are comfortable allowing our technicians to complete scheduled maintenance while they are away. If you would prefer to be present, we are happy to schedule a specific appointment time.
Our technician will explain the issue, answer your questions, and provide recommendations before performing any additional repairs.
Most residential maintenance appointments are completed in approximately one to two hours, depending on the generator and any repairs that may be needed.
Routine maintenance includes inspection, testing, cleaning, and scheduled service items. If additional repairs are needed, we will discuss those separately before beginning any work.
No. However, many homeowners choose an annual maintenance agreement for convenience, priority scheduling, and the confidence that their generator will be professionally serviced each year.