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.

Water Filtration Fall

$40 OFF

On Water Treatment System Repairs and Maintenance
Disclaimer: Offer Must Be Presented at Time of Sale. Valid for Water Treatment System Repairs and Maintenance ONLY, Cannot Be Combined With Other Offers. Discounts are for completed repairs ONLY. Discounts do not apply to dispatch fees. Some Exclusions Apply. Valid 9/1/2026-9/31/2026 Call Office For Details Expires: Sep 30, 2026

Contact Us

Name(Required)

Frequently Asked Questions

Hear From Our Satisfied Customers

Very thorough and informative.
Patricia Bernard
13 hours ago
We had such a great experience with Landry Mechanical! Our mini splits hadn’t been working properly and they were able to come out quickly, troubleshoot the issue, and actually take the time to explain what was going on and how our system works. They were responsive, kind, and so easy to work with.

We also have a garbage disposal issue we need taken care of, and I love that they can help with that too. It’s honestly refreshing to find a company that can be a one-stop shop for so many things around the house.

Being in real estate, I’m always looking for reliable people I feel comfortable recommending to my clients, and Landry Mechanical is definitely going on my referral list!

Huge thank you!
Sophia Gibbs
3 days ago
Landry Mechanical helped my husband and me when we had a serious water leak in our house. Their technician, Adrian Johnson, came to our house on an emergency call. He was amazing. He provided us with topnotch, professional service! He resolved our water leak problem.
Dan Ivascyn
4 days ago
Great experience with Landry! The technician they sent out was very friendly and explained my options clearly. The work was done quickly and looks great! Next time I get work done I'll be contacting this team first
Sam Coache
4 days ago
Landry Mechanical service technician, Evan Schwartz, did a great job inspecting our heating system and providing us important files and data on our current system for the future. Not a sales pitch, but just good information.

Thank you Evan! Great job!
John Laliberte
4 days ago
Great company! Great employees! Very professional! They really know their stuff! Very happy with the work we had done by them! TOP NOTCH!!!
Lena Loughlin
5 days ago
We have had a lot of work done by Landry. Replacing parts for our central Air, putting an outside outlet for our portable generator and updating the circuit panel, installing a brand new tankless boiler. We are extremely pleased with all their work. And we highly recommend them.
Debbie S
5 days ago
Prompt response, quick appointment. Very nice staff. Techs are great. Knowledgeable, neat, keep you informed.
Tracy Carrabba
5 days ago
This is a great company. They are efficient and great people. You always know who is coming and when. The most important thing is they alway come when you call. Highly recommend.
Ana Calcada
6 days ago
We recently had Landry Mechanical perform scheduled service on our heating system. As always, the work performed was professional and well done. The service technicians were on time, courteous, and kept me fully informed while the were servicing my system. Great company to do business with!
john rossi
6 days ago
Great service. Very thorough and even changed the batteries in our thermostat.
Susanne Savard
1 week ago
Rick and Randy were excellent. They were so good at what they were doing. They left my basement cleaner than they found it too! I would definitely recommend them and Landry to my friends.
Ann
1 week ago
Great prompt, and professional service.
Donald G.
1 week ago
Rosie did an extensive check of our heat pump and furnace. She was courteous, knowledgeable and professional.
Perry Blass
1 week ago
Louis was very professional, on time and completed the hvac service. After he explainined the maintenance plan we signed up for it.
Beth Johnson
1 week ago
Our technician was efficient and honest. We will take his suggestions and use Landry for the future
E Davenport
1 week ago
I had a fantastic experience with Sam and Nick from Landry Mechanical Inc Plumbing HVAC & Electrical. Both were highly professional electricians who went above and beyond.

They took the time to clearly explain the safety benefits of arc fault breakers, which was incredibly helpful. Their expertise was proven almost immediately when one of the new breakers tripped, signaling a real issue in my home's wiring. Sam and Nick quickly troubleshot the problem, identified some poor workmanship from a previous contractor, and fixed it on the spot. Once repaired, the breaker worked perfectly.

They also moved an outlet over to another wall for me and did a beautiful, seamless job. I highly recommend Landry Mechanical, and specifically Sam and Nick, for any electrical needs in the Worcester area!
Raphael Rafatpanah
1 week ago
I had an odd job to fix a bathroom fan installation that was not venting properly to the available outside ducting when the bathroom fan was changed as part of a bath remodel. It had been vented to the outside several years ago as part of a Mass Save house insulation upgrade project. Through the Angie website, they recommended Landry Mechanical and they took the job, communicated well, scheduled a visit within two days, and fixed the problem! Mike pulled out the fan and connected it correctly to the ducting. I mentioned about checking if it's now really venting to the outside like it should. He offered to take a look at where it vents outside to see if the louvers were open when the fan is running and they barely were. Wondering if the ducting was even connected correctly, Mike then went into the attic to take a look at the ducting, which was underneath cellulose insulation we had blown in as part of a Mass Save insulation job a few years ago. He said there were bends in the ducting that would cause resistance free to air flow, so not ideal. He didn't have the proper tools for doing rigid ducting work (as his specialty is electrical), but said he'd check with the HVAC part of the company to see if there's anything they could do, so waiting on that, but I was happy just to get someone in who's willing to do that kind of job when it doesn't fit neatly into the company's specific areas of expertise and the price was quite reasonable and took the time to answer all my questions and made sure I was satisfied! I am considering changing to using them for their AC/Heat/Plumbing/Electrical annual service program when my exiting contract with another company expires.
John Stollerman
2 weeks ago
    Book Online in Minutes

    schedule service today

    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.