Just because your generator worked last time doesn’t mean it’s ready today. Small issues like worn belts or low fluid levels can turn into major failures fast.
Batteries lose charge, and fuel can degrade over time. Maintenance helps avoid startup failures and damage to internal parts.
Our inspections often uncover small issues, like loose wiring or failing sensors, that can be fixed before they cause outages or expensive damage.
Most generator warranties require proof of regular maintenance. Skipping service might leave you uncovered when something goes wrong.
Whether it’s your home’s HVAC system or your business’s servers, a well-maintained generator keeps essential systems running through any storm or blackout.
We start by checking the overall condition of your generator. That includes looking for rust, corrosion, fuel leaks, wire damage, pest infestations, and anything out of place. Then we test voltage output, load capacity, and control panel settings to confirm everything’s within spec.
We drain and replace engine oil, then swap out oil, fuel, and air filters with high-quality parts that meet or exceed factory recommendations. This keeps your engine running smooth and prevents performance loss.
Dead batteries are the number one cause of generator failure. We test voltage, clean terminals, and replace weak or aging batteries before they cause trouble.
We inspect coolant levels and flush the system if needed. For fuel lines, we check connections, valves, and ensure clean delivery whether your system uses propane, diesel, or natural gas.
Modern generators use digital controllers and sensors. We run updates, reset error codes, and log performance data to make sure your generator is operating on the latest settings.
We finish every maintenance visit with a real-world simulation. We cut power, activate the generator, and monitor its performance through a full load cycle to confirm it’s ready to step in when it counts.
Startup Takes Too Long: A standby generator should fire up within seconds. If it lags, sputters, or fails, something’s off.
Odd Noises or Smells: Grinding, rattling, or fuel odors are often signs of mechanical issues or leaks.
Warning Lights or Alerts: Flashing lights or error codes mean your generator is asking for help. Ignoring them could lead to shutdown.
Low Power Output: If your generator isn’t holding loads like it used to, there may be voltage issues or fuel delivery problems.
It’s Been Over a Year: Even if everything seems fine, generators need at least one full-service visit every 12 months to stay in shape.
Fuel Contamination: Water and sediment can get into fuel tanks, causing poor performance or engine damage.
Battery Failure: Old or discharged batteries won’t hold a charge, which means your generator might not start during a real outage.
Clogged Filters: Dirty air and oil filters reduce airflow and lubrication, putting extra stress on your engine.
Overheating: Lack of coolant or blocked airflow can cause your generator to overheat and shut down.
Code Violations: Outdated wiring, improper fuel lines, or corroded connections could put you out of compliance with local electrical codes.
Our clients across Houston trust AstroGen because we show up when we say we will, install cleanly, and make sure their generators are truly ready. Whether it’s a small home system or a large commercial setup, we treat every project with care and precision. Check out our reviews to see how others have powered through outages with AstroGen’s help.
Steve DuffFebruary 3, 2025Trustindex verifies that the original source of the review is Google. Very professional job. Everyone was polite and friendly. Jose has been a joy to deal with. My calls have been returned promptly. I definitely recommend Astrogen. Jack-O JohnstonFebruary 1, 2025Trustindex verifies that the original source of the review is Google. Astrogen did a great job on the install and it looks great. Did some initial trial runs and everything is working as it should. Would definitely recommend them to anyone looking for a generator install at a fair price. BO FALGOUTFebruary 1, 2025Trustindex verifies that the original source of the review is Google. Absolutely one of the best experiences we have had. These folks are great people to work with. Kaden was on top of things for sure. Beckie ParishFebruary 1, 2025Trustindex verifies that the original source of the review is Google. If you need a whole house generator, AstroGen is the only choice. They take care of all the details from permits to installation to inspections. This company has their own in house licensed plumber and electrician so there is no waiting for other companies come. The entire installation was seamless and was accomplished very quickly. The installers were very professional and spent as much time as we needed answering our questions and teaching us how our new generator runs. I highly recommend AstroGen. John docimoJanuary 30, 2025Trustindex verifies that the original source of the review is Google. Mason, personally came out to explain everything to us (one of the owners) The couple of times that I had to call their office the young ladies in the office were friendly knowledgeable and got back to quickly, if they didn’t have the answer to a question.All his men were knowledgeable, courteous and neat and everything was done the way they said it was going to be done.excellent company, excellent People! ….., thank you Astrogen,! 👍😊 Ricky ramirezJanuary 29, 2025Trustindex verifies that the original source of the review is Google. AstroGen has completed my installation as promised. The entire crew were very professional and definitely know what they are doing. They commissioned the equipment and explained how to operate it.They were very thorough. They cleaned up after they completed the install and could not tell they were ever there. They did an awesome job and would highly recommend AstroGen . Thanks R Ramirez Sherry SherryJanuary 24, 2025Trustindex verifies that the original source of the review is Google. They were professional very knowledgeable as to what type of generator that I need for the size of my house. Mason and his crew were professional and was able to get my generator in within one day. I would recommend AstroGen for the go to if you want a generator at your home. Jaie HudsonJanuary 23, 2025Trustindex verifies that the original source of the review is Google. Great Experience - Very reasonable prices and very fast scheduling with great communication from start to finish. The owner called after the job was completed just be check in and be sure I was happy with the work done. They listened to my needs and didn't try to upsell me like some companies have tried to do in the past. Highly recommended. Jezz ManJanuary 22, 2025Trustindex verifies that the original source of the review is Google. I had my Generac service by Kaden. He explain to me how it runs and keeping it service. Thank you Kaden for coming out with a snowy backyard. He got my generac back on. Anthony AllenJanuary 20, 2025Trustindex verifies that the original source of the review is Google. It was a great experience. They showed up early and set everything up. And even set my generator up and did a test run with me to show me how the process works. It was good. Thanks Astro GenLoad moreVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
“Our power went out during a storm that came through during the night and we lost power. Our Generac generator didn’t startup and threw errors. I called around 9:00 am and the owner, Mason, showed up within the hour and was so great working with us. Unfortunately we have to get the motor replaced, Mason took care of calling Generac to work on getting it replaced through our warranty. We can’t say enough good things about the service we received. We will be using them now on for routine service maintenance. I HIGHLY recommend them.” – Stacy ONeal
“The installation crew was respectful and did a phenomenal job from install to clean up. The service tech came out the next day and did a complete walkthrough with me and answered every question I had. Best choice I made by using Astro Gen to service my house!!! Thank yall again.” – Roman McElfresh
“AstroGen successfully completed the installation and start up of my whole-home generator. I chose Cummins Generator. I am super pleased with the process, the workmanship and the people. I would particularly like to mention @Jose, and @Ethan who were directly responsible for the installation, both are nice and professional, and Caleb who was my main point of contact. Overall, I am satisfied with AstroGen. I have already recommended AstroGen to my neighbor who is scheduled to get his installed in a few weeks.” – Dharmesh Shah
“There are very few companies that truly deserve more than 5 stars. This is one of them. I tried to get generator quotes from several companies. And AstroGen was the only one that got back to me in a timely manner. From the first phone call they were organized, professional and transparent. Kaden came out for out house quote and walked us through options, answered all of our questions and made sure we felt comfortable. Install day was today (even after major storms last night), everything was completed on time and the owner Mason came out and looked everything over and did the final walkthrough. I could not be more appreciative of AstroGen and their team! I would highly recommend to anyone and everyone.” – Cameron Branham
Startup Takes Too Long: A standby generator should fire up within seconds. If it lags, sputters, or fails, something’s off.
Odd Noises or Smells: Grinding, rattling, or fuel odors are often signs of mechanical issues or leaks.
Warning Lights or Alerts: Flashing lights or error codes mean your generator is asking for help. Ignoring them could lead to shutdown.
Low Power Output: If your generator isn’t holding loads like it used to, there may be voltage issues or fuel delivery problems.
It’s Been Over a Year: Even if everything seems fine, generators need at least one full-service visit every 12 months to stay in shape.
Run Monthly Tests: Let your system run for 5–10 minutes every month to keep fluids moving and parts working. This short exercise also helps spot issues early, so you’re not surprised during an actual outage.
Keep It Clear: Remove leaves, dirt, and other debris from around the generator for better airflow and fewer pest problems. A clear space also makes it easier for techs to access your system when it needs service.
Watch for Alerts: Don’t ignore blinking lights or strange smells, they’re signs your system needs attention. Catching these warnings quickly can save you from bigger, costlier problems down the road.
Log Run Time: Keep a simple log of test runs, maintenance, and outages so you can track performance over time. Having a record makes it easier to spot patterns and helps techs diagnose issues faster.
Want to make things easy?
Ask about AstroGen’s scheduled maintenance plans. We’ll remind you when it’s time for service and keep your generator running like new, so you can relax knowing it’s always ready.
Need a new system? We design and install automatic generators for homes and businesses, complete with transfer switches, permitting, and fuel hookups.
Protect your business with high-output generator systems sized for offices, clinics, and commercial buildings. Seamless installs and fast turnaround.
If your generator is down or not performing right, we’ll find the issue and fix it fast. We service all major brands and models.
Power out and your system failed? Our emergency team is on-call 24/7 to troubleshoot and restore your power backup system quickly.
Looking to upgrade or install for the first time? We sell systems from Generac, Kohler, Cummins, and more. We’ll help you pick the right fit and handle the entire setup.
How often should I service my generator?
We recommend professional maintenance at least once a year. For high-use or commercial systems, twice a year is better.
Can I do maintenance myself?
You can check for debris and run monthly tests, but most servicing should be handled by a licensed technician to protect the system and warranty.
Do you offer maintenance plans?
Yes. We offer flexible plans for homes and businesses that include reminders, seasonal tune-ups, and discounted repairs.
Which brands do you service?
We maintain Generac, Kohler, Cummins, Briggs and Stratton, and nearly all other major generator brands.
Can you check a generator you didn’t install?
Absolutely. We service systems installed by other companies and offer inspections to bring them up to standard.
Call today or schedule service online, we’ll make sure your backup power system is ready when you need it most.