What Is a Whole-Home Generator?

A whole-home generator is a backup power system that automatically provides electricity during an outage. Unlike portable generators, it connects directly to your home’s electrical system and runs on natural gas, propane, or diesel. Whole-home generators ensure continuous power to essential appliances and systems, keeping your home safe and comfortable during blackouts.

How Does a Whole-Home Generator Work?

When the power goes out, an automatic transfer switch detects the outage and activates the generator. The generator then supplies power to your home, restoring electricity within seconds. Once utility power is restored, the system shuts off automatically, ensuring a seamless transition.

What Are the Benefits of Installing a Whole-Home Generator?

A whole-home generator provides uninterrupted power, protecting your home from outages caused by storms, grid failures, or emergencies. It keeps essential appliances, medical devices, and heating and cooling systems running. Additionally, it increases home value and offers peace of mind, especially in areas prone to frequent power disruptions.

What Size Generator Do I Need for My Home?

The right generator size depends on the total wattage of the appliances and systems you want to power. Smaller generators (10-15kW) can run essential systems, while larger models (20-30kW or more) can power the entire home. A professional electrician can help determine the appropriate generator size based on your household’s energy needs.

What Fuel Options Are Available for Whole-Home Generators?

Whole-home generators typically run on natural gas, propane, or diesel. Natural gas provides an unlimited fuel source if your home has a gas connection, while propane is a good option for homes without gas lines. Diesel generators are often used for high-power applications but require fuel storage.

How Long Can a Whole-Home Generator Run?

A whole-home generator can run indefinitely on natural gas, as long as the fuel supply is uninterrupted. Propane or diesel models run until their fuel supply is depleted, with run times depending on tank size. Regular maintenance ensures the generator remains in good working condition for extended use.

Do Whole-Home Generators Require Maintenance?

Yes, regular maintenance is necessary to keep the generator running efficiently. Maintenance includes checking oil levels, replacing filters, testing the battery, and running the unit periodically to ensure proper function. Professional inspections help identify and fix potential issues before an outage occurs.

Should I Hire a Professional to Install a Whole-Home Generator?

Yes, whole-home generator installation involves electrical and gas connections that must meet safety codes. A licensed electrician ensures proper sizing, wiring, and integration with your electrical/electrical-panels/”>home’s electrical panel. Professional installation guarantees safe and reliable operation when you need it most.

Buffalo Whole-Home Generators

Reliable Backup Power for Your Home

A whole-home generator provides peace of mind by keeping your lights, appliances, and essential systems running during power outages. In Buffalo, where storms and winter weather can lead to unexpected blackouts, having a dependable backup power source is essential. At Roy’s Plumbing, Heating, Cooling & Electrical, we install and service high-quality generators to ensure your home stays powered when you need it most. Our expert team helps you choose the right generator size and model to fit your household’s energy needs. With professional installation and maintenance, we make sure your Buffalo home is always prepared for the unexpected.

Winter storms and power outages are nothing new in Buffalo, which is why local homeowners trust Roy’s for whole-home generator solutions.

Service technician in dark uniform and a homeowner inspect a large outdoor standby generator on a wooden pad in a fenced backyard.

Our Residential Generator Services

Power outages can be inconvenient and even dangerous, but a whole-home generator ensures your essential systems stay operational. We offer expert installation, repair, and maintenance services to keep your generator ready when you need it most. With our reliable solutions, Buffalo homeowners can enjoy uninterrupted power and peace of mind year-round.

Generator Installation: A professionally installed generator provides seamless backup power during outages. We assess your home’s energy needs and install the right system for maximum reliability.
Generator Replacement: If your current generator is outdated or struggling to keep up, upgrading to a new model improves efficiency and performance. We remove old units and install modern, energy-efficient systems that meet your power demands.
Generator Repair Services: If your generator isn’t functioning properly, we diagnose and fix issues to restore its performance. From electrical malfunctions to fuel supply problems, we ensure your backup power is always ready.
Routine Generator Maintenance: Regular maintenance helps prevent unexpected failures and extends the lifespan of your system. We inspect, test, and service your generator to ensure it operates efficiently when needed.
Automatic Transfer Switch Installation: An automatic transfer switch seamlessly shifts power to your generator when an outage occurs. This ensures your home stays powered without the need for manual activation.

To see what we can do for you, call us for a quote or to schedule service.

Book Now

Click to Call

Why Choose Roy’s For Residential Generators?

Roy’s Plumbing, Heating, Cooling & Electrical is dedicated to helping Buffalo homeowners stay prepared with dependable backup power solutions. Our experienced team ensures every generator installation, repair, and maintenance service is completed with precision and care. We take the time to assess your home’s energy needs and recommend the best system for reliable performance. With decades of experience and a reputation for quality workmanship, we are the trusted choice for whole-home generator services.

Experienced Generator Specialists: Our team is trained to install and service all major generator brands, ensuring expert-level care. We stay up to date on the latest backup power technologies to provide the best solutions for your home.
Reliable Emergency Power Solutions: When the power goes out, you need a generator you can trust to keep your home running. We ensure your system is properly sized and installed for uninterrupted performance.
High-Quality Equipment: We only install top-rated generators designed for efficiency and durability. Our products provide long-term reliability, so your home stays powered during outages.
Seamless Installations: From start to finish, we handle every detail of your generator installation to ensure a smooth process. Our team works efficiently to get your backup power system up and running without hassle.
Ongoing Maintenance & Support: A generator is only useful if it’s in peak working condition, which is why we offer routine maintenance and repair services. We help you stay ready for power outages with regular checkups and fast service when needed.

$500 Off

Whole Home Generators

Book Now

Call for details. Must present coupon at time of service. Cannot be combined with other offers.
Expires: Jul 31, 2026

Services

Get in Touch

Name(Required)

Email(Required)

Phone(Required)

Service Request

How Can We Help?

Frequently Asked Questions

4.8 Google Rating

See Why Our Customers Feel Like Stars

The team from Roys Plumbing and heating were fantastic. Very polite, professional and very knowledgeable about everything answered all my questions. They were very patient. And did a very very good job. Would recommend them 100 times over.

Vincent Merecki

3 days ago

Very friendly and knowledgeable! Patient with questions

Courtney Flynn

4 days ago

Tech Evan was great! He explained fully the issue, offered several options, then completed the repair. Very personable, professional job. Extremely satisfied with the service.

Michael Gromek

5 days ago

Evan Doud analyzed my sink and faucet problems and fixed everything in no time! I’ll always call Roy’s when I need help!

Patricia

5 days ago

Josh was great! He listened to my concerns patiently and walked me through step by step ways in which he could solve the problem. He was very polite, knowledgeable, and friendly. I’m very glad I called Roy’s!!!!

Mary Richardson

1 week ago

Evan was very professional and knowledgeable. Swift and quality work, I would recommend. Price was maybe on the high end of fair, but again for the professionalism it is worth it.

Nick

2 weeks ago

Josh B was extremely thorough, kind ans helpful when we had a leak in our kitchen sink. He explained all of the options and was efficient with repairing the issue. We’re very happy!

Laura Labert

2 weeks ago

From Thomas who came to my house for a consult to Nathan who came and did the work. They were so patient with me. They explained everything thoroughly and professionally. Made me feel comfortable and that I could trust them. I would recommend Roy’s to anyone! Thank you guys so much!

Stephanie Nicole

2 weeks ago

Josh Butry gave us an estimate to move the washer and dryer from the basement to the first floor. He was very knowledgeable, polite and answered all of our questions. I would highly recommend him for your plumbing needs.

Karl Conniff

3 weeks ago

Review update—Roys were extremely professional. Came installed my ac and furance. Explained everything extremely well. Worth the price. Will keep being a client

Donald Dayton

3 weeks ago

Highly professional and knowledgeable visit from Josh Butry today. Clear and concise description of the work required. Upfront and open pricing. Very satisfied customer.

Dustin Tellinghuisen

3 weeks ago

Roys came out to give me an estimate to repair my sump pump line outside. Josh Butry was the technician who came out. He was very professional and friendly, explained everything in detail and was upfront and honest about the cost of the repairs and offered different options. I would highly recommend Roy's for any of your plumbing, hearing, cooling or electrical needs.

Peggy Carthon

3 weeks ago

Professional, really cared about my issue, explained things, and got it fixed with exceptional customer service!!! Thank you!

Megan F. Lostracco

3 weeks ago

Josh was excellent to work with very informative and explained in great detail would like to keep him as my regular plumber if any issues arise in the future

Matt S

3 weeks ago

Roy’s Plumbing completed a gas line removal/capping for a utility line we no longer needed. Josh B. was great— knowledgeable, friendly and efficient. And we got some feedback about our other plumbing items that we’ll have the team back for in the future.

Whitney Kehl

3 weeks ago

Tyler completed a full plumbing inspection and installed a new trap for the tub and replaced the shower head. Other items recommended and estimates provided by Tyler. He explained everything very well and made it easy to understand the current/potential issues. Respectful of our home and fun to talk to as well. Keep up the great work. Thank you!

Mark Bishop

3 weeks ago

View More Reviews

Leave a Review

Schedule Service With Roy’s Today

Need help with your plumbing, heating, cooling, or electrical system? Roy’s makes it easy to schedule fast, reliable service in Buffalo and the surrounding areas. Our licensed technicians arrive on time, treat your home with respect, and get the job done right the first time. Whether it's an urgent repair or a routine checkup, we're here to keep your home safe and comfortable. Don’t wait—book your appointment with Roy’s today and experience the 5-star difference!

Book Now

Click to Call