Plumbing, Heating, Cooling & Electrical Experts

Heating and Cooling, Plumbing & Electrical in Holliston, MA

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Local & Family-Owned Home Service Company

Our service trucks are a regular fixture along Washington Street and the residential avenues surrounding the Upper Charles Rail Trail. We understand the specific demands of Holliston’s housing stock, where meticulously kept colonial properties in the Mudville neighborhood sit alongside mid-century ranches and newer builds near the Sherborn line. Maintaining these homes requires a technical partner familiar with the local climate’s impact on older infrastructure, from the heavy moisture levels near Lake Winthrop to the high energy demands of modern households.

Reach out to our team to coordinate your next home service visit.

Heating & Cooling

The inland location of Holliston often results in slightly more extreme temperature swings than the coastal regions of the state. We ensure your heating and cooling equipment is sized and maintained to handle these fluctuations efficiently, reducing your energy costs while maximizing indoor comfort.

Contact us today for professional HVAC services in Holliston.

Plumbing Services

Holliston’s water infrastructure involves a mix of town supply and private wells, each presenting unique maintenance requirements. We specialize in the nuances of both, ensuring that your filtration systems, water heaters, and internal piping remain free of the mineral buildup common in the MetroWest area.

Schedule plumbing services for your Holliston home today by calling or contacting us online.

Electrical Services

The transition to a more electrified home environment often requires a professional look at your existing service capacity. Whether you are adding a modern kitchen or need to secure your home against local power outages, our electricians provide the technical expertise to keep your power system safe and compliant.

Schedule an electrical service appointment with a professional electrician today.

Drain & Sewer

Aging tree roots and older pipe materials can lead to sudden backups that threaten your home’s interior. We utilize non-invasive camera technology to inspect your lines, identifying problems early and providing solutions that restore full flow to your drainage system.

Connect with our team for expert drain service.

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

Why Choose Landry Mechanical Inc?

  • Skilled technicians proficient in HVAC, plumbing, and electrical trades.
  • Local expertise regarding Holliston’s specific water and utility configurations.
  • Dedicated to providing clean, professional, and efficient home repairs.
  • Clear project communication from initial call to final inspection.
  • 24/7 Emergency Services

Schedule your next service online or by calling today.

Freedom From Heat

FREE

System Diagnostic on ANY HVAC System

10 Years or Older!

Disclaimer: Offer Must Be Presented At Time of Sale. Valid For HVAC Repairs Quoted By Landry that exceed $300 ONLY. 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. Offer Valid 7/1/2026-7/31/2026 Expires: Jul 31, 2026

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Hear From Our Satisfied Customers

I had an excellent experience with Landry Plumbing. Dennis installed my new hot water heater, and he was outstanding from start to finish. He was extremely ~> knowledgeable, thorough, and took the time to explain everything he was doing, answer my questions, and even point out other plumbing issues that may need attention in the future. I really appreciated how informative, professional and down to Earth he was.
His assistant, Rickie, was also wonderful! He is kind, courteous, and always willing to help. Together they worked efficiently, kept the work area clean, and treated my home with respect throughout the entire installation.
Their professionalism, attention to detail, honesty, and excellent customer service made the whole experience stress-free. I highly recommend Landry Plumbing, and especially Dennis and Rickie, to anyone looking for reliable, licensed, insured and skilled plumbers. Thank you both for a job well done!!
Nicole Moschini
4 days ago
Gavin and his crew, Ian, Zach and the electrician Dimitry did a great job with installation and even completed the work early. They were friendly, knowledgeable and had great communication throughout.
Dot Mersfelder
4 days ago
Great team, excellent work
Would highly recommend them
Kevin Tinsley
2 weeks ago
Very pleased with the thorough work by Drew Sanford! We had an issue with our central air that took some in depth investigation but Drew did not disappoint and made sure he got to the root of the problem. He was very professional and personable at the same time. So much appreciated and we highly recommended!
Tara Flodin
3 weeks ago
Garrett and Kyle were true professionals installing our brand new Heat a pump system.
Outstanding customer service, a clean install and very courteous individuals.
Great installation due to great HVAC TECHS.
LANDRY COMPANY should be proud of Harret and Kyle
Thomas Dunn
3 weeks ago
Garret and Kyle worked from 7:30 am - 6 pm installing a new HVAC system in 100+ degree weather. (Bad timing for the old system to die!) Many thanks to both of them for coming here to install the new system and make life comfortable for us in this sweltering heat.
Lisa Tomas
3 weeks ago
Aaron and Tory from Landry Mechanical were outstanding. We have a very old HVAC system, and they were able to quickly diagnose the issue and restore air conditioning to our home the very same day. They took the time to walk me through the diagnosis and clearly explained what was wrong and how they were going to fix it. They were professional, clean, efficient, and respectful of our home throughout the entire service call. I really appreciated their expertise and excellent customer service. I highly recommend Aaron, Tory, and the team at Landry Mechanical!
Ernie Granillo
3 weeks ago
After 25 years our AC needed replacement. Landry used a iPad app to determine the size of the system we needed (we had an undersized system previously which explains why our house never properly cooled down in the middle of summer). They were able to schedule an install the next week. Garret and Kyle did a great job. Super friendly, informative and professional! Couldn’t be happier.
Boris Tolpin
4 weeks ago
Fantastic service Our AC was not working on our 1st really hot day. Landry mechanical
Was going to squeeze us in if unable they set up an early morning house call .We got a call within an hour that they got us in .Rosie was our technician and she was amazing very pleasant and very professional.
I will be referring Anyone who needs anything done mechanically can rely on Landry.
GREAT SERVICE GREAT PRICES AND FOLLOW UP. I REALLY CAN'T SAY ENOUGH THANK YOU'S.
Craig Keevan
4 weeks ago
Sam and Nick did an excellent job for us. Very professional and friendly(and hilarious). Definitely knowledgeable and explained everything so we understood our options. Fair price for all the work involved. Went above and beyond to help us out. Definitely recommend. A+ service
Christine Brunelle
4 weeks ago
Great local company. They did a great job on our AC installation. Installation team was professional, courteous and competent.
Joe Fitzhenry
4 weeks ago
Our entire experience with Landry was excellent. We needed to replace our water heater. The office people started it off well by being friendly and helpful. They were very thorough in giving us our options in the quote. They got it done quickly and even simplified some of the pipe work from the previous set up. Looks great and works great! Very happy we used Landry!
Laura Petronino
4 weeks ago
Mine was just an annual tune up. Mr . Torres showed up well ahead of time and got the job done in no time. He took all my questions and proved himself to be very knowledgeable in what he does. The job is half done and the rest is expected to be done soon but i am fully satisfied and will be knocking on Landry’s door next year for another tune up, God willing!
John Jantuah
1 month ago
All needs were anticipated. Costs reflected what was discussed at first contact.
John Gaboury
1 month ago
Larry was informative , Great service! And a true Gentleman! I would definitely use Landry Mechanical plumbing again
Yvonne Whittemore
1 month ago
We had an outstanding experience from start to finish with Landry HVAC, plumbing and mechanical. Tim L. came out to assess our cooling needs and utilized a LiDAR scanner to ensure that our rooms were properly fitted with the right-sized mini-split units. He addressed every question we had, which set a wonderful tone and made us feel completely comfortable and confident in our decision to move forward with Landry.

Avah served as our dedicated point of contact, and both she and Tim provided prompt, kind, and clear communication throughout the entire process.

Gavin, our lead technician, did an incredible job and is truly a star in his role. He was professional, communicative, and thorough in explaining every step of the installation. We are very pleased with how Gavin and our second technician, Kyle, handled the units, wiring, covers, and the condenser. Gavin provided us with information on how to use, clean and maintain our new mini split units. They were incredibly respectful of our property and took great care to keep our home clean. Additionally, Don the electrician did fantastic work with the electrical components to ensure our system was running safely and smoothly.

This was truly the "dream team," and I cannot recommend Landry highly enough. We will certainly utilize them for all maintenance and future services for our home.
Mercedes Mateo
1 month ago
We had a great experience working with Landry. Mike the electrician served all our needs and was very knowledgeable and helpful installing our new lighting. We also had Randy and Jake help us with plumbing issues that involved replacing a toilet and replacing shower valves and where very satisfied with the work they did.
Dustin Pierce
1 month ago
We loved our multiple electrical installations by the professionals at Landry Mechanical. They are exceptional and really easy to work with. I'm looking for more projects to call them back to work on.
Terry Higgins
1 month 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.