Standby Generator Installation and Maintenance in the Tri-State Region
Keep your home powered with expert standby generator installation and maintenance, available now across the Tri-State region. We’re a family-owned company founded in 1992, trusted by over 100,000 customers, with an A+ BBB rating. Our factory-trained technicians install Generac and KOHLER systems and can complete turnkey installation in 1 day. Serving the Indiana-Illinois-Kentucky Tri-State region, including Indianapolis, Evansville, and Fort Wayne. Get a free instant estimate online or call for friendly help. 4.6 rating from 212 reviews.
Each image is a real worksite photo, reflecting the quality and dedication in every project.
Special Offers & Promotions
"Limited Time Offer! Save Up To $2,026 on a new standby generator."
- "free customizable quote"
SAVE UP TO $2,026 ON A NEW GENERATOR
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Get a FREE Instant Generator Cost Estimate Online via Tri-State’s online estimator.
- Online instant cost estimator
Save up to $2,026 on a new generator. Special offer for this month only. Fill out the form for a free, customizable quote.
- On-site inspection
- Turnkey installation
- 24/365 remote monitoring available for first year
Save up to $2,026 on a new generator from Tri-State Water, Power & Air.
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Generac – 7 year warranty – $735 value with qualifying purchases
- 7 year warranty
"Free site evaluation for residential generator installation."
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First year of maintenance and monitoring free with purchase of a generator
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Kohler – 10 year warranty – $1,400 value with qualifying purchases
- 10 year warranty
Save Up To $2,026 On A New Generator - limited time offer promoted on the site
- Free customizable quote
Why Choose Us
What Our Customers Say
"We were very pleased with the installation of our Generac Generator. The installation went smoothly, Rickie was very thorough!!"
"Jason from Tri State did a great job installing our standby generator. We lost power just five days after installation and the generator came on automatically without a hitch."
"Our serviceman Colton was very knowledgeable and thorough about the maintenance of our generator. He answered and explained all our questions and concerns."
Answers to Common Questions
View All FAQsHow often should I change the oil in my standby generator?
Change the oil in a standby generator according to the manufacturer’s maintenance schedule, not a fixed calendar date. Most residential systems use an hours-run or annual service interval because oil degrades with heat and time even if the generator rarely runs. Our factory-trained technicians perform routine maintenance and weekly diagnostic checks, and we support homeowners across the Ireland area with certified generator service. For many new installs, we also provide free remote monitoring and maintenance for the first year.
Service sooner if you notice any of the following:
- The unit ran for extended hours during a recent outage
- The controller or app shows a maintenance or low-oil alert
- Oil on the dipstick looks unusually dark or smells burnt
If you’re unsure, schedule annual service and we’ll confirm the correct interval for your specific model. <br/> Updated: 2026-03-11 <br/> Need help in Ireland, IN? Call (877) 301-7693 or book online. “Our serviceman Colton was very knowledgeable and thorough about the maintenance of our generator.” — Firstname L.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUN6Z01DZXNnRRAB!2m1!1s0x0:0x44ad91fa9637905e!3m1!1s2@1:CIHM0ogKEICAgICzgMCesgE%7CCgwIv6PdsgYQ4Lri-QE%7C[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNEd3ZMcXpBRRAB!2m1!1s0x0:0x44ad91fa9637905e!3m1!1s2@1:CIHM0ogKEICAgICDwvLqzAE%7CCgsIrLqIsAYQ6O2fFA%7C[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xoUVZrZE1hRGhxY1VJM2JWQkpTVkpvZWxsa01YYxAB!2m1!1s0x0:0x44ad91fa9637905e!3m1!1s2@1:CAIQACodChtycF9oOlhQVkdMaDhqcUI3bVBJSVJoellkMXc%7C0cJlY04zj3-%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURYNk1DRGN3EAE!2m1!1s0x0:0x44ad91fa9637905e!3m1!1s2@1:CIHM0ogKEICAgIDX6MCDcw%7CCgsIkrfvuAYQsIO2Ww%7C[4] https://tristatewhywait.com/#mm-5[5] https://tristatewhywait.com/tankless-water-heaters/[6] https://tristatewhywait.com/shop/[7] https://tristatewhywait.com/plumbing-services/drain-cleaning/[8] https://tristatewhywait.com/generators/generac-standby-generators/[9] https://tristatewhywait.com/generators/kohler-generators/[10] https://tristatewhywait.com/#nav-standbygenerators[11] https://tristatewhywait.com/shop/#/journey/generator_estimateHow much does standby generator repair typically cost?
Standby generator repair cost is set after a diagnostic because the failed component, labor time, and urgency determine the price. Most charges come from the part that failed and the time needed to access, test, and verify the fix. Emergency service is available 24/7, but final pricing is confirmed after an on-site inspection. If your unit is older and needs multiple major components, replacement can be more cost-effective than repeated repairs. Our team services homes across the Hartsville area, so we can evaluate and quote promptly once we see the system.
Typical items that influence the final quote:
- Diagnostic and testing time, including load tests and reading fault codes
- Common wear fixes like a battery, starter motor, or fuel regulator on natural gas or propane systems
- Electronic components such as the controller or automatic transfer switch
- Site conditions: gas line issues, venting clearances, corrosion, or storm-damage access
Schedule a diagnostic so we can pinpoint the fault and give a firm repair quote before any work begins. <br/> Updated: 2026-04-01 <br/> Need help in Hartsville, IN? Call (877) 301-7693 or book online.
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Installation cost varies by home and is confirmed after a free on-site evaluation. We size the generator, check propane or natural gas availability, and plan the electrical tie-in and automatic transfer switch. Financing is available. Current promotions offer up to $2,025 off a new generator, plus free remote monitoring and maintenance for the first year. Turnkey installs can be completed in 1 day. We serve the state of Indiana.
<br />Updated: 2025-12-19 00:00:00
<br />Need help in Spring Hill, IN? Call (877) 301-7693 or book online.
"Jason from Tri State did a great job installing our standby generator." — Kevin B.
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Helpful Tips & Maintenance Advice
View All BlogsLake Cicott, IN Standby Generator Installation & Maintenance Tips
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When a standby generator won't start, it is stressful and costly. Here are the top causes and step-by-step fixes any homeowner can try before calling for service. If you need help, Tri-State’s factory-trained techs provide 24/7 emergency support and first-year remo...
Solsberry, IN Standby Generator Installation & Maintenance
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Power outages do not wait for a convenient time. If you want dependable comfort and safety, backup generator installation must be planned and executed correctly. In this guide, you will learn how to size your system, secure permits, prepare the site, connect fuel, ...
New London, IN Standby Generator Installation & Maintenance Tips
Estimated Read Time: 9 minutes
If your generator not producing power has you stressed, take a breath. In many cases, you can restore output with a few safe checks. Below is a fast, step-by-step troubleshooting guide that shows what to try first, what to avoid, and when to call a pro. If you are i...
Where We Work
What areas do you serve for standby generator installation and maintenance?
We serve the Indiana-Illinois-Kentucky Tri-State Region, including marquee areas like Indianapolis, Evansville, and Fort Wayne. See the complete city list below for full coverage.






