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.

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: Feb 28, 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

I had water in my basement and they came same day to evaluate the situation. They were honest with me about the potential cause of the water and all of my options for remediation. I chose to have my sewer line jetted. They removed and replaced a very old, rusty cap and jetted the line. It took 30 minutes and they were done. I'm very pleased with the service and timely response. I would highly recommend.

Kara M.

1 day ago

Mike the service tech from Roy's was extremely knowledgeable, professional and a pleasure to deal with. Had my furnace fixed in no time

wapablap

1 day ago

Very professional timely manner was great, very friendly and kind and did a great job.

Terry Mcnemar

1 day ago

Jeff installed our air purifier and filtration system. He was professional and very customer service oriented A pleasant personality. He kept us informed and went over the new system along with demonstrating how to change the filter Fantastic work.

Maryann Steinitz

2 days ago

We had a generator installed today by Zack,Stephen,Tony,Kyle. They were very knowledgeable and helpful and friendly. We have been customers for about 30 years and have always been satisfied with your technicians. And today was no different. Also Mike Murphy was very helpful with our purchase.

Patricia Lawkowski

2 days ago

Christian provided phenomenal service today! He was kind, patient, and took the time to help address every concern we had. Not only did he replace a corroding pipe, but he made sure to include us in making sure the quality was up to our satisfaction. Christian was extremely neat with his work, and very knowledgeable. I would highly recommend him to anyone needing any sort of plumbing repair or maintenance in their home. We can only hope to have him again if we are ever in need of a plumbing repair by Roy’s. The compassion and quality of service that Roy’s employees continue to possess are unmatched by any other competing company we have used in the past. Excellent experience.

Alexandra Weldy

2 days ago

Absolutely love Roy's. Tom (plumber) was fantastic. Assessed, replaced, and cleaned up after. Everything is done to code, and they back the products they use. I have used the electrician side of Roy's. You cant beat great service, honest, and the workers have all been great!!

Christina Morgan

2 days ago

They were prompt and very efficient. Polite and made sure everything they were doing was what we wanted. Then when they were finished. Went around again to make sure we were satisfied.

Norma Maue

2 days ago

Roys has been great. Today I had someone come out and check out a cold room in the house. But we had our entire sewer line redone last summer. Weve been very happy with our customer service. They always take their time with us, explain everything. No complaints.

Lindsay Cardona

3 days ago

Excellent service. I hope you pay Dennis well.

Ted Schmidt

3 days ago

Ben and his partner and anthony were all great

William Garzo

3 days ago

I’ve used a handful of heating, cooling, and plumbing companies over the years, and Roy’s Heating & Plumbing has hands down been the best. They’re a local company, but they operate with the professionalism and resources of a much larger outfit—without the inflated pricing. Over the last 10 years, we’ve had two true emergency calls, and every time Roy’s answered the phone and showed up when it mattered most. Most recently, our furnace broke down in the middle of a snowstorm. They came immediately, diagnosed and fixed the issue right away, and were completely fair on pricing—no upselling, no nonsense. Reliable, responsive, and honest. Highly recommend Roy’s Heating & Plumbing.

Luke Udell

3 days ago

Turned out to be an easy problem, they were great to talk to , responded quickly & were very nice

Bruce Reynolds

4 days ago

Great quick service, great prices. Very happy with knowing that I will have a covered furnace and AC and Roy’s team to service it as needed.

Jordan Miles

4 days ago

Bob was the best! Roys is always great.

Nick Vega

5 days ago

Very knowledgeable technician very good service

david canazzi

5 days ago

Roger did a amazing job. Thank you for all your help

Jr Baker

6 days ago

VERY KNOWLEDGEABLE AND PROFESSIONAL AND SO NICE AARON EVEN TOLD US WHAT TO DO IN CASE OF FUTURE BREAK DOWNS!!!

Ralph Ezzo

7 days 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