Standby Generator Maintenance for Connecticut Homes and Businesses
Ralph Mann & Sons provides professional generator maintenance for standby generators — permanently installed, automatic backup power systems that start on their own the moment the grid goes down. This is a comprehensive, scheduled service performed by trained technicians at your property, covering every system your generator depends on to start and run
reliably.
Maintenance is available for natural gas and liquid propane standby generators, including Kohler home standby and commercial units up to 150kW. Ralph Mann & Sons has served Connecticut homeowners and businesses since 1916 and is a recognized authority in power generation equipment across the state.
Everything Checked Nothing Missed
A Ralph Mann & Sons maintenance visit is thorough by design. Technicians work through a complete inspection and service checklist at your property — no need to disconnect or transport your generator.
Every maintenance visit includes:
Technicians run the generator through a full operational test before leaving. You get a documented service record at every visit.
Generator Maintenance in Ansonia, Seymour, and Waterbury.
All maintenance is performed on-site at your property. If you are unsure whether your address falls within the service area, call 800-995-6266 and the team will confirm.
- Fairfield County: Including Westport, Fairfield, Darien, New Canaan, Ridgefield, Danbury, Weston, and surrounding communities.
- New Haven County: Including Ansonia, Derby, Shelton, Woodbridge, Orange, Oxford, Seymour, Naugatuck, and communities throughout the Naugatuck Valley.
- Litchfield County: Including Southbury, Woodbury, Kent, Sherman, Colebrook, and communities throughout the Litchfield Hills.
A Generator That Has Not Been Serviced Is a Generator You Cannot Depend On
Semi-annual professional maintenance (serviced twice a year) is the difference between a generator that starts in seconds and one that fails at midnight during a nor'easter.
Fresh Oil Prevents Engine Failure
Engine oil breaks down over time, even when a generator sits unused. Dirty or low oil is one of the leading causes of generator failure during an extended outage, and it is one of the first things a technician checks.
Clean Filters Keep the Engine Running at Full Capacity
Clogged air and fuel filters restrict the engine's ability to start and sustain a load. Replacing them on schedule keeps combustion clean and the generator ready for extended run times.
A Tested Battery Means an Automatic Start
The battery triggers the automatic start sequence. A weak or dead battery is one of the most common reasons a standby generator fails to respond — and one of the simplest things to catch and correct during a maintenance visit.
A Tested Transfer Switch Keeps Your Home Safe
The automatic transfer switch (ATS) disconnects your home from the utility grid and routes power from the generator. Testing it during maintenance confirms it will respond correctly when the power goes out, protecting both your equipment and your home.
Schedule Twice a Year
and Know When to Call Sooner
Ralph Mann & Sons recommends professional maintenance twice a year for all standby generators. Most Connecticut homeowners schedule their first visit in the spring before the summer heat and their second in the fall before the winter storm season — so the generator is ready for whatever Connecticut weather brings.
There are also specific situations that call for an unscheduled service visit:
What does generator maintenance cost? Standby generator maintenance typically ranges from $200 to $600 per service visit depending on unit size, age, and fuel type. Ralph Mann & Sons services generators twice a year and offers maintenance plans that lock in your semi-annual schedule so you never have to track it yourself. Call 800-995-6266 for a quote specific to your unit.
The Lights Stay On. Your Family Stays Comfortable. Your Business Keeps Running.
Connecticut sees some of the most disruptive storm seasons in the Northeast. Nor'easters, hurricanes, and ice storms can knock out power for hours or days at a time. A properly maintained standby generator starts automatically, in seconds, and runs the systems your home or business depends on heating, air conditioning, sump pumps, well pumps, security systems, and major appliances.
The difference is not dramatic. You do not notice the generator starting. You notice that nothing stops. The coffee maker still works. The sump pump still runs. The office server stays online.
That is the outcome of generator maintenance done right. Ralph Mann & Sons has been delivering that outcome to Connecticut homeowners and businesses since 1916.
110 Years of Service.
An Authorized Kohler Dealer. A+ Rated by the BBB.
Ralph Mann & Sons, Inc. has served Connecticut since 1916, more than 110 years as a family-owned business. The company is an authorized Kohler generator dealer, providing sales, installation, and service for Kohler units up to 150kW. R. Craig Mann serves as President.
The company holds multiple active Connecticut state licenses:
Ralph Mann & Sons is an A+ Accredited Business with the Better Business Bureau, accredited since December 2008, and is affiliated with NATE (North American Technician Excellence), the Connecticut Heating and Cooling Contractors Association (CHCCA), AHRI, GeoExchange, and IGSHPA. Low-interest financing is available for generator services.
Generator Maintenance, Repair, and Installation Are Three Different Services
Knowing which service fits your situation gets your generator back to full health faster and avoids paying for work you do not need.
| Service | What It Covers | When You Need It |
|---|---|---|
| Generator Maintenance | Scheduled semi-annual service — oil, filters, battery, transfer switch test, run test, documentation | Proactively, twice a year — spring and fall — or on a semi-annual maintenance plan |
| Generator Repair | Addresses a specific fault, failed part, or unit that will not start or run correctly | When a fault code appears, the unit fails to start, or performance degrades |
| Generator | Full installation — concrete pad, gas | When purchasing and installing a |
| Installation | piping, transfer switch wiring, factory start-up, and testing | new standby generator |
If a technician identifies a problem during a scheduled maintenance visit, Ralph Mann & Sons will advise on next steps and coordinate a repair service visit. Repair is available 24 hours a day, 7 days a week at 800-995-6266.
Getting Your Generator on a Maintenance Schedule Takes One Phone Call
1
Call or Schedule Online
Call 800-995-6266 or visit the scheduling page to request a generator maintenance visit. Office hours are Monday through Friday, 8:00 AM to 4:30 PM.
2
A Technician Comes to Your Property
A trained Ralph Mann & Sons technician arrives at your location and performs the full maintenance service on-site. No disconnecting, no transporting — just show them to the generator.
3
Ask About Maintenance Plans
Maintenance plans keep your generator on a semi-annual service schedule without you having to track it. Ask about plan options, pricing, and what is covered when you call.
Generator Maintenance Questions, Answered
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Connecticut State Licenses: HIC.0504051 | HTG.0303047-S1 | HTG.0307938-ST1 | HOD.0000368 | FRP.0010753-F1 | PLM.0203557-P1 | ELC.0123595-E1
Affiliations: BBB | NATE | AHRI | IGSHPA | GeoExchange