Whole-Home Generator Repair in Texas
A standby generator that won’t start during an outage needs fixing today. Grasten repairs Generac, Kohler, Cummins and Briggs & Stratton generators across Houston, Dallas and Fort Worth, with 24/7 support and parts on the truck.
Generator Repair
Generator Repair for Every Major Brand
Over time, every standby generator shows normal wear and tear. A unit can grow inefficient or noisy, or develop a fault that poses a fire hazard, and the worst time to learn it won’t run is the morning the grid goes down. Grasten’s factory-trained technicians diagnose the whole system, from the battery and controller to the transfer switch and fuel supply.
We repair the generators we install and the ones we didn’t: Generac, Kohler, Cummins and Briggs & Stratton, on natural gas, propane or diesel, for homes and businesses across Texas.
Warning Signs
Signs Your Generator Needs Repair
Generators usually tell you something is wrong before they fail. If you spot any of these, call our service line before the next outage tests the unit.
What We Repair
Generator Repairs We Handle Every Week
Even with consistent maintenance, parts wear out. Warranty repairs under the 12-Year Power Plus Warranty cover labor, travel, parts and major components, and non-warrantied repairs are available on any brand. Here is where our technicians look first.
Dead Batteries & Chargers
Texas summers are hard on generator batteries, and a battery that can't crank the engine is behind more no-start calls than any other part. We load-test it, check the charger, and swap whichever has worn out from the stock on our van.
Automatic Transfer Switch Repair
If your generator is humming but the lights are still off, the automatic transfer switch is the first suspect. Our technicians test the switch, its contacts and its controls, then repair or replace it on Generac, Kohler, Cummins and Briggs & Stratton units.
Gas Supply & Regulator Issues
A generator that starts and then stalls is often short on fuel. We check the gas meter, line size, regulator and valves on natural gas and propane systems, and coordinate with your utility if the supply itself needs work.
Controller Errors & Alarms
Every fault the controller logs tells part of the story. With Grasten's remote monitoring, those codes reach our team in real time, so our technicians diagnose faster and can update the firmware or replace a failed board.
Engine, Oil & Cooling Faults
Low oil pressure, overheating and worn ignition parts make the engine shut itself down to avoid damage. We find what tripped the protection, fix it to factory specifications and confirm the unit runs under load before we leave.
Wiring, Rodent & Weather Damage
Chewed wires, corroded connectors and debris inside the enclosure can stop a generator that looks fine from the street. We trace the damage, replace harnesses and sensors, and reseal the enclosure so it stays protected.
Emergency Service
Emergency Generator Repair, Around the Clock
Power outages don’t keep business hours, and neither does our service line. A real person answers 24/7, whether it’s 2am or a holiday weekend, and our trained technicians are ready to help with any standby generator emergency across Houston, Dallas and Fort Worth.
Reach the service line at 281-259-6500. Our stocked service vans and Texas parts warehouse mean a rapid response when the unit is down, and if the part is on the truck, we fix it on the first visit.
What to Expect
How a Repair Visit Works
Every repair visit follows the same three steps, so you always know what comes next.
We Investigate the Problem
Tell us the brand, the model and what the generator is doing. Our technician investigates the whole system on site, finds the cause and walks you through the solution.
We Repair to Factory Specifications
Our factory-trained technicians repair your generator to factory specifications, using the parts and tools stocked on our service vehicles, so the repair doesn't wait on a parts order.
We Inspect the Rest of the System
An inspection of the rest of your system at the time of repair lets you know if there are any other potential issues that need to be addressed before the next breakdown occurs.
Fewer Repairs
Most Repairs Are Preventable
The repairs above rarely appear overnight. A tired battery, a clogged filter or drifting fuel pressure shows up during an annual check-up long before it stops your generator during an outage. Call 281-259-6500 to sign up for a maintenance plan, and remember that every manufacturer and dealer warranty, including the 12-Year Power Plus Warranty, requires annual maintenance. Annual service by our team keeps that coverage active and the repair bill small.
FAQs
Generator Repair Questions
Common questions about generator repair and emergency service
Do you repair generators you did not install?
Yes. Grasten technicians are able to service generators purchased through us or through someone else, with both warranty work and non-warrantied servicing for standby generators of all types.
My generator will not start. What is the most likely cause?
Most often it is the battery or the battery charger, especially after a hot Texas summer. A controller fault, a fuel supply problem or a tripped breaker can also stop a start. Call 281-259-6500 and our technician will test the whole system to find the cause.
What generator brands do you repair?
We are authorized dealers for Generac, Kohler, Cummins, and Briggs & Stratton generators, and we service natural gas, propane and diesel standby generators of all types.
Do you offer emergency generator repair?
Yes. Our staff stocks all parts and tools necessary to provide around-the-clock emergency services. Call 281-259-6500 when you need standby generator repair anywhere across Houston, Dallas and Fort Worth.
How do I keep repairs to a minimum?
Schedule a regular generator service. When your generator is being serviced regularly, issues can be prevented or repairs can be made before they are a problem. Ask about our maintenance plans.
Where do you provide generator repair?
Across Greater Houston, Dallas and Fort Worth. Find your city on our Texas service areas page.
Need Service Now?
Generator Down? Get It Fixed.
Factory-trained technicians, a stocked parts warehouse and 24/7 phone support, for every major generator brand across Houston, Dallas and Fort Worth. Call 281-259-6500 or schedule your repair online.