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Keep the lights on
when Houston goes dark.

GenService maintains, troubleshoots, and repairs home standby generators across Greater Houston. Around the clock, at a fair price. We service the unit you own. We don't sell you a new one.

Call (832) 670-9591Get a quote

Generac · Kohler · and most home standby brands

Open Generac home standby generator serviced by GenService in Greater Houston

24/7 emergency

We answer when the power doesn't.

Budget-friendly

Fair, upfront pricing. No dealer markup.

Independent

A service shop, not a sales floor.

Greater Houston

Local crew, local response times.

What we do

Everything your generator needs. One local crew.

New air filters, spark plugs, and oil filter laid out during a generator tune-up
01 /

Maintenance

Keep your generator ready before the storm.

Oil changes, filter replacement, plugs, battery checks, and load testing.

  • Seasonal / annual service
  • Exercise-cycle checks
  • Full readiness report
Schedule maintenance
Automatic transfer switch open with a multimeter testing the wiring
02 /

Troubleshooting

Find the reason it will not start.

Fault codes, transfer failures, battery issues, and no-start calls.

  • Fault-code diagnostics
  • Electrical output testing
  • Transfer-switch checks
  • Clear, upfront repair estimate
Diagnose an issue
Generac home standby generator opened up for service beside a Houston brick home
03 /

Repair

Fix the unit you already own.

Practical repairs done right the first time. No upsell, just honest service.

  • Fuel and ignition repairs
  • Battery and charger replacement
  • Cooling and control issues
  • Major-brand service
Request a repair
Technician metering a generator battery during a no-start diagnosis
Diagnosing · No-start call
Why GenService

We don't sell generators. We keep yours running.

Dealers make their money on the next install, so a repair is never the priority. We took the opposite path. The unit on your pad is the one we work on, and we tell you straight what it needs before we touch a part.

  • Honest diagnosis. You hear the real fault and the real cost, first.
  • Fair pricing. Service-shop rates, not showroom margins.
  • Owner-operated. Chris Guzman runs every call. You deal with the person doing the work.
GenService on a service call in Greater Houston

Chris Guzman

Owner-operator · Greater Houston

Who shows up

You let us into your home. Here's who's coming.

GenService is Chris Guzman. Call and you reach the person who shows up, reads the fault, gives you a straight price, and does the work. No dispatcher, no rotating subcontractors.

  • Owner-operated, every single call
  • Generac & Kohler standby specialist
  • Independent: service and repair only
Talk to Chris
On call across Greater Houston

Storms don't pick a zip code, and neither do we.

Find your city below, or call and we'll tell you the next available window.

See your area
Map of the Greater Houston area GenService covers, from Katy and Fulshear in the west to Pearland and Humble in the east
Greater Houston · coverage
North: Spring · Humble · Tomball · Jersey Village

18 cities covered

Questions Houston homeowners ask.

How fast can you get here when the power's out?
We answer the phone 24/7 and roll as fast as we safely can. During a big regional outage we work the most urgent calls first, so the sooner you call, the sooner we can give you a real time window instead of a vague promise.
How much does a generator repair cost?
You get an upfront price before any work begins. As an independent service shop — not a dealer — our pricing is fair and budget-friendly, and we'll never pad the bill to nudge you toward a new unit.
What part of Greater Houston do you cover?
All of it. We're regularly in Katy, Cinco Ranch, Fulshear, Sugar Land, Missouri City, Pearland, Spring, Humble, Tomball, and the rest of the metro. If you're near Houston and not sure, just call and we'll tell you straight.
The generator runs but the house still has no power. Can you fix that?
Almost always. That's usually the automatic transfer switch failing to hand off, and diagnosing it is core to what we do. We meter the system, find the real fault, and tell you the fix before touching a part.
Are you available at night and on weekends?
Yes. Storms don't keep business hours, so neither do we. GenService is on call 24 hours a day, 7 days a week, and it's the same owner-operator you'd reach during the week.

Power out and the generator won't start?

That's the call we exist for. Day or night, we pick up and we roll.

Call now