Generator Services in Wheaton, IL
Whole-Home Standby Generator Installation & Service
Power outages in Chicagoland can last hours or even days — leaving your family without heat, refrigeration, medical equipment, and security systems. OneStop Pro installs and services whole-home standby generators that activate automatically within seconds of a power outage, keeping your home running safely until utility power is restored. Protect your family with a generator you can count on.
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✓ Licensed & Insured
✓ Since 2007
✓ Upfront Pricing
✓ 24/7 Emergency
Complete Generator Solutions for Your Home
A whole-home standby generator is the ultimate protection against power outages. Unlike portable generators that require manual setup and can only power a few circuits, a standby generator is permanently installed outside your home and connected directly to your electrical panel. When the power goes out, it starts automatically — often before you even notice the outage.
Our generator specialists help you choose the right size and type of generator for your home’s specific needs. We consider your essential circuits, total power requirements, fuel source availability, local codes, and budget to recommend the perfect solution. We’re authorized dealers for Generac, Kohler, and other leading generator brands.
From initial consultation and sizing through installation, permitting, and ongoing maintenance, OneStop Pro handles every aspect of your generator project. We also provide annual maintenance plans to ensure your generator is always ready when you need it most.
Our Generator Services
- Whole-Home Standby Generators
- Generator Installation
- Generator Repair & Service
- Generator Maintenance Plans
- Automatic Transfer Switches
- Generator Sizing & Consultation
- Commercial Generators
- Emergency Generator Service
- Generator Load Testing
- Fuel System Service
Our Generator Services
Generator Installation
Professional installation of whole-home standby generators. Includes permitting, electrical work, and gas line connection.
Generator Repair
Expert repair for all generator makes and models. Fast diagnosis and reliable fixes to restore your backup power.
Maintenance Plans
Annual maintenance keeps your generator ready for the next outage. Includes oil changes, filter replacement, and load testing.
Commercial Generators
Large-scale generator solutions for businesses, medical facilities, and critical infrastructure.
Why Every Chicagoland Home Needs a Standby Generator
The Chicagoland area experiences an average of 3-5 significant power outages per year, with some lasting 24 hours or more. Severe storms, ice accumulation, high winds, and aging infrastructure all contribute to power disruptions that can leave your family vulnerable.
During a winter outage, your home can reach dangerously cold temperatures within hours. Pipes can freeze and burst, causing thousands of dollars in water damage. Sump pumps stop working, leaving your basement vulnerable to flooding. Food in your refrigerator and freezer begins to spoil. And if anyone in your household relies on medical equipment, a power outage becomes a medical emergency.
A whole-home standby generator eliminates these risks. It starts automatically within 10 seconds of a power outage and runs on your existing natural gas or propane supply — no refueling needed. When utility power returns, the generator shuts down automatically and returns to standby mode, ready for the next outage.
The investment in a standby generator also increases your home’s resale value. According to Consumer Reports, a whole-home generator can increase property value by 3-5%, making it both a safety investment and a smart financial decision.
Protect Your Home with a Standby Generator
Don’t wait for the next power outage. Call OneStop Pro for a free generator consultation and find out which system is right for your home.
Frequently Asked Questions
Whole-home standby generator costs vary based on size and installation complexity. A typical residential generator (20-24kW) with installation ranges from $8,000-$15,000. This includes the generator unit, automatic transfer switch, concrete pad, gas line connection, electrical work, and all permits. We provide free in-home estimates with detailed pricing.
A typical residential generator installation takes 1-2 days. This includes pouring the concrete pad, setting the generator, connecting the gas line, installing the automatic transfer switch, and testing the system. We handle all permits and inspections as part of our service.
Generator sizing depends on which circuits and appliances you want to power during an outage. A 20kW generator can power most homes’ essential circuits including HVAC, refrigerator, lights, and outlets. For whole-house coverage including electric ranges and dryers, a 22-24kW unit may be needed. Our specialists perform a detailed load analysis to recommend the right size.
We recommend annual professional maintenance for standby generators, similar to a car’s annual service. This includes oil and filter changes, spark plug inspection, battery testing, coolant check, and a full load test. Regular maintenance ensures your generator starts reliably when you need it and extends its lifespan to 20-30 years.
Natural gas supply rarely fails during power outages because gas lines are underground and not affected by storms. However, if you’re in an area with propane service, your generator will run on your propane tank. We can also install dual-fuel generators that can run on either natural gas or propane for maximum reliability.
Why Choose OneStop Pro?
Since 2007
Nearly two decades of trusted home service in Chicagoland.
Honest Service
Upfront pricing with no hidden fees. Know the cost before work begins.
Family Owned
We treat every home like our own. Our reputation is everything.
Certified Experts
Licensed, insured technicians with ongoing training.
Proudly Serving the Western Suburbs of Chicago
Wheaton · Naperville · Glen Ellyn · Lombard · Downers Grove · Elmhurst · Carol Stream · West Chicago · Warrenville · Winfield · Lisle · Aurora · Batavia · Geneva · St. Charles · Addison · Bloomingdale · Roselle · Villa Park · Bartlett
Contact OneStop Pro for Generator Service
From new installations to annual maintenance, our generator specialists keep your backup power system ready for anything. Call us today for a free consultation.