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: Jan 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

Great service. On time, Steve was very good and knowledgeable. I would recommend Roy's Plumbing to everyone.

Andrew Badding

23 hours ago

The communication from the office personnel to the technicians was great. I loved that they send you a email with a picture of the technician coming and a little bio. Jeff was who we had come help. He was knowledgeable and personable he was able to fix our problem and we signed up for membership and before he left he said he would let the office know to set us up for a furnace check. He couldn't have been gone for more than 20 mins and we were already getting a call to set that appointment up. I am so glad we went with Roy's. We will definitely use them for any of our plumbing, heating and cooling needs. Nick came for the big job we needed and he was personable and knowledgeable. He explained the two projects being handled and everything was done quicker than expected and all is working well. Very pleased with the work that was completed.

Crista

1 day ago

Josh was on time, very personable and knowledgeable. He was great at explaining everything and even took pictures. He was great at cleaning up!

Meg Stoll

3 days ago

My sump pump failed and my basement flooded with 2 inches of water. What did I do? I called Roy’s Plumbing Heating and Cooling. since it was an emergency, they sent a technician out to my home within 30 minutes of my call. The technician, Nick Fyvie was very courteous and put me at ease quickly by assuring me that he would resolve my issue. And did he ever! He showed me several options of sump pumps they had available, patiently answered my many questions and helped me to choose the one that would suit my needs best. Nick then began the installation process of the new sump pump and quickly had my basement clear of all the water. I can’t say enough about the excellent service I receive from Roy’s Plumbing Heating & Cooling. I would highly recommend Roy’s for any of your plumbing heating or cooling needs!

Lamont Williams

3 days ago

Roy’s did a wonderful job in repairing a valve in our combo water heater/boiler system. They came to our home the day we called for help. The service person was knowledgeable and explained everything. He also used some creativity to get the necessary new part sooner for us.

Jamie Wooldridge

4 days ago

Excellent workmanship, excellent installers.

Glen Boddy

4 days ago

Almost instant response, very friendly representative and diagnosed the problem found the part locally went and got it and installed it. Everything done from call to shaking is hand thank you was 2 1/2 hours. Very impressive. They are my go to!!! Very happy.

Jason Klubek

4 days ago

Clint did a fine job, was polite, reviewed all the inspection work he performed, and recommendations for future possibilities.

David Henderson

4 days ago

Super helpful and understanding. Walked through all the options with me.

Alex Reid

4 days ago

Quick service and the gentleman that came where very nice and considerate and informative

Joseph Breinlinger

5 days ago

Very nice and the estimate in detail.

Michael Mccormick

5 days ago

Excellent service. All questions answered.

Jacob Hirschfelt

5 days ago

Joshua Buttry. Very knowledgeable!. Very personable. Got the job done in less than an hour. I have a sink that drains wonderfully for the first time in years.

Bob Grimm

5 days ago

Thomas (plumbing service) was great. He explained everything he did in detail including what my options were and was very thorough. I would highly recommend.

Lindsay McGranahan

5 days ago

Great local company to work with. My electrician, Ray, was punctual, professional, and very knowledgeable. We both were initially stumped why my recently purchased house had the microwave light button trigger the overhead kitchen lights. He found an improperly connected neutral from an outlet upgrade (to usb) and some significant backfeeding. In about an hour all was corrected and explained to me. Ray also noticed that the main panel in my house is original (1971) and very full. He recommened some electrical work that is on my list of projects. His recommendation and attention to detail in my home will make Roy's my first call when I am ready for this project. I am trilled with the service provided. Thanks so much!

Brian

5 days ago

Tarik did an outstanding job. He is a polite, knowledgeable young man, with laser focus on customer needs and providing a superb first time Roy’s experience at my home. For any future needs, I will be sure to call Roy’s !!!

Sam Messana

5 days ago

Great price and quick installation. Very friendly and professional.

Tyrone Smith

6 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