Electrician working on junction box.
Plumbing, Heating, Cooling & Electrical Experts

Whole-House Generator Installation Services in Worcester, Middlesex & Norfolk Counties

Losing power can disrupt your entire routine, from heating and lighting to refrigeration and communication. With a professionally installed whole-house generator, you can keep your home running smoothly during any outage. Landry Mechanical Inc Plumbing HVAC & Electric provides expert home generator installation services that deliver comfort, safety, and peace of mind. Our licensed electricians design and install systems that automatically restore power within seconds, protecting your home and family from unexpected interruptions.

Every home has unique power demands, and a properly sized generator ensures your essential systems, like heating, cooling, lighting, and appliances, stay on when you need them most. Our team serves in Worcester, Middlesex & Norfolk Counties, providing seamless installations backed by professional setup and support. With a new whole-house generator, you can enjoy the confidence of knowing your home is always prepared. Call today to schedule your installation and protect your home from unexpected outages year-round.

whole-home generators in the yard

How a Whole-House Generator Works

A whole-house generator connects directly to your home’s electrical panel and automatically activates when the main power supply goes out. The system uses a transfer switch to detect the outage and start the generator within seconds, delivering steady power to your essential appliances, HVAC systems, and lights. Once utility power is restored, it shuts off and resets itself for future use. Running on natural gas or propane, these generators provide reliable, hands-free operation that keeps your home safe and comfortable during any outage.

Our Home Generator Installation and Service Options

Home generators are a smart investment in safety and convenience, and professional installation ensures they work exactly as intended. Landry Mechanical Inc Plumbing HVAC & Electric offers complete generator solutions, from initial setup to long-term care. Our licensed electricians handle every detail with precision to ensure seamless performance during outages and efficient operation year after year.

Generator Installation

Our team designs and installs systems that match your home’s size, layout, and electrical needs. We help you choose the right generator capacity, install the transfer switch, and connect it to your home’s fuel source for dependable automatic operation.

Generator Maintenance and Testing

Regular service keeps your generator in top condition and ready for any emergency. We provide scheduled inspections, oil changes, battery checks, and performance testing to make sure your system runs smoothly when needed.

Generator Replacement

If your current unit is outdated, unreliable, or no longer meets your household’s demands, we offer professional generator replacement services. Our electricians handle removal, installation, and testing to deliver reliable backup power you can count on.

Need fast help with plumbing, heating, AC, or electrical? Call or schedule service today!

Why Homeowners Rely on Landry for Whole-House Power Solutions

Installing a generator is about more than convenience—it’s about creating dependable protection for your home and family. Homeowners choose Landry because of our experience, precision, and dedication to long-term reliability. Every installation and service is handled with care, ensuring your system performs safely and efficiently when the power goes out.

  • Tailored System Design: We evaluate your home’s layout and energy needs to recommend the right generator for consistent performance.
  • Licensed Installation Experts: Our electricians have extensive training and follow all local codes and manufacturer guidelines for a safe, professional setup.
  • Reliable Brands and Equipment: We install trusted generator systems designed for durability and long-term use, ensuring dependable power for years to come.
  • Maintenance Support: Through regular service visits and inspections, we keep your generator in peak condition and ready for unexpected outages.
  • Community-Focused Service: As a locally operated company, we take pride in supporting homeowners across central and eastern Massachusetts with honest, quality-driven electrical care.

Schedule Your Whole-House Generator Installation Today

Power outages can happen at any time, but preparation makes all the difference. Landry Mechanical Inc Plumbing HVAC & Electric provides professional home generator installation and service to keep your home safe, comfortable, and powered through any emergency. Our licensed electricians handle everything from setup to maintenance, ensuring dependable performance for years to come. Call today to schedule your generator installation and take the first step toward complete peace of mind.

Faulty Outlets In Your Home? Just Call Landry!

Save $20

on Outlet, Switch or Wiring Repairs This Winter!
Offer Must Be Presented At Time Of Sale. Valid for $20 Off Outlet, Switch, or Wiring Repairs. Cannot Be Combined With Other Offers. Discounts are for completed repairs ONLY. Discounts do not apply to dispatch fees. Some Exclusions Apply. Call Office For Details Expires: Nov 30, 2026

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Hear From Our Satisfied Customers

Matt and arrived about 1 PM and were done in 2 hours. The toilets are fine and I am delighted.
Alice Dorothy Phalen
3 days ago
Tech (Eddy) was great! Personable and professional! Thoroughly reviewed details!
Heather Carson
3 days ago
I have been having issues with my old oil furnace. These amazing people have come the day I called and I think they got it. What I really liked was that they consulted each other with work that had been done. They are friendly and professional. Louis came today and his parting words were: " don't worry , we are here for you".
E Davenport
4 days ago
Jonathan and Marcus (and the rest of the team) were personable, excellent with communication and the furnace installation. All was finished today, great job on cleanup. Dimitri talked us through the new thermostat installation, making sure it was where we needed it. Definitely recommend!
Bob Gervais
4 days ago
I highly recommend Landry Mechanical and cannot say enough about their services. When the gas water heater in our rental unit flooded the basement, I wasn't sure who to call or how soon I could get someone there. I remembered Landry had serviced our gas furnace and checked their web site to see if they also did gas water heaters and discovered they offer a whole range of services I wasn't even aware of.

I called Landry about 8:30 in the morning and the scheduler said they could have someone there by noon. They beat that estimate - I got a call from the technician who said they were on their way and would be there about 10:15, less than 2 hours after I called. They first assessed the situation, had a lengthy discussion with my husband (a retired contractor) who had lots of questions, all of which were answered thoroughly and to his satisfaction. When it was determined a replacement was necessary - no patching or temporary fix - they had the same model on the site within the hour. The work was prompt, clean, and met my husband's stringent standards.

Now that we know they also provide full electrical services, we will be calling them to add an electric panel to our rental property. Our previous electrician has been delaying the job literally for months, despite back and forth emails and texts to try to get him on site. Having earned our trust and demonstrated the quality of both their people and their work, Landry Mechanical is now our “go to” for any services we need.
Mizzlebuff Mizzlebuff
4 days ago
I Highly recommend Landry mechanical and plumbing HVAC
They were prompt, very efficient personable And informative very well run professional business
Patti Saniuk
4 days ago
The tech showed up on time and proceeded to do my annual gas furnace inspection, which I am happy to say passed with flying colors. The tech was personable and didn't mind that I tend to hover while she worked. Always had excellent service from Landry.
April Asquith
5 days ago
Great job done by such a nice guy !! Mike Dowd , He was professional knowledgeable and explained everything that needed to be done and how he was going to do it .Great experience!!
Angela Clemmer
7 days ago
Randy was fantastic and performed perfectly. I would recommend them to anyone.
Maurice LeFort
7 days ago
Highly recommend Landry Mechanical! I hired them for installation of a new HVAC/ heat pump. From sales to installation… great customer service, responsive to questions, and professional and friendly team. They talked through all options for my heat and cooling needs so I felt it was a collaborative process. It’s a big expense and I felt they had my best interests in mind.
Christine Svitila
1 week ago
The whole experience was great . Professional
And Friendly .
Kevin Callahan
1 week ago
Friendly, Professional service.
Kurt Jorritsma
1 week ago
Excellent service from Landry Mechanical. It's easy to get an appointment, the technicians are very polite and knowledgeable, they provide free and reasonable estimates and they get the job done! I recommend Landry Mechanical!
Ashok Joshi
1 week ago
Hunter and Ricky were very friendly and knowledgeable concerning the servicing and maintaining my plumbing appliances and bathroom fixtures. They gave me options on possible issues and let me decide on priorities. I was very pleased with the services provided and look forward to having my home serviced by Landry in the future.
Jacqueline Coppedge
1 week ago
As always, the Landry team was awesome. Honesty and clear upfront explanations of the work are their trademark.
Carol Masiello
1 week ago
I have a boiler maintenance plan with Landry. They completed startup service for our condensing gas fueled boiler . My wife & I are retired engineers. Eddy the technician is very knowledgeable and worked efficiently. His customer service skills are excellent! He patiently answered all our questions & fully explained his inspection findings. He quickly put a proposal together, got our approval to proceed and went to get the new parts needed. The boiler maintenance was done in an hour.

And So the boiler is ready for reliable service this winter. Thanks Landry!
Paul Popinchalk
1 week ago
Technician arrived right on time. He (Anthony) was friendly, courteous and very professional. Anthony listens carefully to the issues and then provided a reasonable and practical solution. Overall cost was reasonable. My only concern is that it is not easy to talk to a human being during the booking process. Have to go through an IVR then a AI bot. Company could make the engagement process easier and less complicated.
Mike Norman
1 week ago
We had a plumbing issue that Nick from Landry handled quickly and professionally. Great service and a fair price. I would definitely recommend Landry, especially Nick, who was terrific.
Matt Hurley
1 week ago
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    When you need AC, heating, plumbing, or electrical repairs and replacements, call Landry Mechanical Inc Plumbing HVAC & Electric or book online for appointments in Millbury, MA, and throughout Worcester, Middlesex, and Norfolk Counties.