Whole House Generators
Whole-House Generators in Olney, MD
When a storm knocks out the power, a whole-house standby generator keeps your home running, heat, cooling, refrigeration, sump pumps, and lights, automatically. Olney Heating and Air Conditioning installs and services whole-house generators for families across Olney, Silver Spring, Rockville, Bethesda, Gaithersburg, and the surrounding Montgomery County communities, so you are never left in the dark. With 40-plus years of experience, we deliver reliable backup power and honest, fair-priced service.
Automatic Backup Power
A standby generator sits outside your home, connected to your electrical panel and a fuel supply. The moment the grid goes down, it starts automatically and restores power within seconds, no extension cords, no manual setup. When utility power returns, it shuts off on its own. Properly sized to your home, it keeps the systems that matter running through any outage.
Our Generator Services
Generator Installation
Free estimates and complete installation, sized to your home, including electrical and transfer-switch work.
Maintenance & Testing
Scheduled service and testing that keep your generator ready to perform when you need it most.
Repair
Fast diagnosis and repair so your backup power is always dependable.
Why Install a Standby Generator
Automatic protection during outages, no scrambling for a portable unit. Your heat, AC, refrigerator, sump pump, and lights keep running, protecting your comfort, your food, your basement, and your peace of mind. For homes with medical needs or frequent outages, it is invaluable.
Sized and Installed Right
Proper sizing ensures your generator powers what matters without waste. We assess your home’s needs, recommend the right unit, and handle the complete installation, including the electrical and transfer-switch work.
Why Olney Homeowners Trust Us
Olney Heating and Air Conditioning is a licensed, insured, family-owned business serving Olney, Silver Spring, Rockville, Bethesda, Gaithersburg, and the surrounding Montgomery County communities for over 40 years. We recommend only what your home needs, price every job fairly and up front, and stand behind our work.
Frequently Asked Questions
How does a standby generator work?
It monitors your power and starts automatically within seconds of an outage, then shuts off when utility power returns, all without any action from you.
What size generator do I need?
It depends on which systems you want to keep running. We assess your home and recommend a properly sized unit, no more, no less.
How often do generators need service?
Annual maintenance and periodic testing keep a standby generator ready to perform. We offer service plans to handle it for you.
What fuel do they use?
Most standby generators run on natural gas or propane. We help you choose based on what is available at your home.
Never Lose Power Again
Ask Olney Heating and Air Conditioning about a whole-house standby generator for your Montgomery County home. Automatic, reliable backup power.