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24/7 HVAC, Plumber & Electrician in Waltham, MA

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Top-Rated Local Home Service Company

Traffic along Moody Street doesn’t slow down much, and neither do the heating, cooling, plumbing, and electrical systems inside Waltham homes. Between older multi-family properties near downtown, historic homes around Prospect Hill, and newer renovations closer to Route 128, homeowners across Waltham deal with a wide range of system issues throughout the year. Landry Mechanical has spent years working throughout the city, handling everything from emergency furnace repair and AC service to plumbing leaks and electrical upgrades.

You’ve likely seen our trucks moving past Bentley University, parked outside homes near Beaver Street, or navigating neighborhoods around the Charles River between calls. Some homes in Waltham still rely on aging pipes and outdated electrical panels, while newer additions and remodels often require modern HVAC systems capable of handling year-round New England weather.

When something starts failing inside your home, quick service can help prevent much larger disruptions later.

Plumbing Services

Waltham’s mix of historic homes, apartment buildings, and renovated properties creates a wide variety of plumbing challenges. Older galvanized piping, recurring drain blockages, and worn-out water heaters are all common throughout the city.

Landry Mechanical provides reliable home plumbing solutions throughout Waltham, including repairs, replacements, and emergency plumbing services.

Even small leaks can lead to costly damage in older Waltham homes. Addressing plumbing problems early usually helps avoid larger repairs and water-related damage later.

Heating & Cooling Services

Waltham homeowners rely heavily on dependable HVAC systems through freezing winters and humid summer stretches. Older heating systems often struggle during extended cold snaps, while aging AC units can have difficulty keeping up once temperatures climb into the 90s.

Landry Mechanical provides dependable HVAC repair and replacement services throughout Waltham, including furnace repair, AC service, mini split installation, and heat pump solutions.

If your heating or cooling system has become unreliable, louder than usual, or less efficient, scheduling service early can help avoid peak-season emergencies.

Electrical Services

Many Waltham homes were built decades before today’s electrical demands became standard. Once EV chargers, modern HVAC systems, home offices, and large appliances are added, older electrical systems often struggle to keep up safely.

Landry Mechanical provides licensed electrical installation and repair services throughout Waltham.

Electrical issues should never be ignored. If your home experiences repeated breaker trips, buzzing outlets, or flickering lights, it’s worth having the system professionally inspected.

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

Why Choose Landry Mechanical?

  • One company for HVAC, plumbing, drain, and electrical services
  • Emergency support available for heating, cooling, and plumbing issues
  • Familiar with Waltham’s historic homes, condos, and newer developments
  • Licensed technicians for plumbing, HVAC, and electrical work
  • Experience handling demanding New England weather conditions
  • Responsive scheduling throughout Waltham and the surrounding Greater Boston communities

Landry Mechanical continues to help Waltham homeowners stay ahead of heating failures, plumbing leaks, cooling issues, and electrical problems before they turn into larger disruptions.

Fresh Air, Fresh Savings

$50 OFF

Any HVAC Repair Over $300!
Disclaimer: Offer Must Be Presented at Time of Sale. Get $50 OFF Any HVAC Repair or tune-up. Cannot Combine Offers. Offer Valid From May 1, 2026-June 30th, 2026 Expires: June 30, 2026

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Hear From Our Satisfied Customers

Gavin and Kyle were remarkable! Gavin is extremely well spoken, and his customer service is exceptional. He walked us through every step, and ensured we were happy and satisfied with the results. We look forward to working with Landry again.
Jamie Sinnis
4 days ago
probably the best experience I've had with an HVAC Service. The tech was very knowledgeable a great communicator and personable very satisfied with the feedback after the job was completed and would definitely recommend this company.
Robert McGuire
5 days ago
The technician Sammy did a wonderful job explaining the situation , offering options and was very professional and friendly.
Cheryl Henry
5 days ago
Professional. Left work area clean. Explained every thing. No issues or concerns
Joanne Wood
5 days ago
Landry Mechanical was thorough in exploring different options for the scope of work, working with our budget and listening to our needs. Great experience and good work.
Jesse Josselyn
6 days ago
My technician, Drew S., was very knowledgeable, patient, and helpful. Quickly diagnosed the issue and replaced the necessary part. Will be using Landry again in the future.
Matt Merrill
1 week ago
From the sales team (Tim) to the installation team (Keith, Zach, and many more) these folks have done an outstanding job removing our old system and installing a new full HVAC system. Everyone has been professional and thorough in their work and very easy to deal with from start to finish. Thanks so much!
Sam McCormick
2 weeks ago
Excellent response and prompt on time repair of my garage heater.
Michael Costa
2 weeks ago
All needs were anticipated. Costs reflected what was discussed at first contact.
John Gaboury
2 weeks ago
I was very impressed with the professionalism, knowledge, kindness and class that was shown by my install team, Gavin and Kyle. They explained everything and answered all of our questions. They showed respect for my space and cleaned up the area very well. The units also look great! Very good experience with Landry overall so far!
Katie Savage
2 weeks ago
Technician was very professional and knowledgeable. He was extremely thorough when discussing issues with service.
Susan Genereux
2 weeks ago
Everything is seamless: Text message when they’re arriving; Instant electronic billing when they’re done. All work is guaranteed. Technicians are uniformly knowledgeable.
Klaus Shigley
2 weeks ago
One of our best experiences with any company. Garret, Gaven, Julian, Don, Demitri, Kyle and Ian were beyond professional, respectful, courteous on top of knowing their stuff! Made sure all our questions were answered and our knowledge of how the units worked Big job, scheduled quickly and completed in 1 1/2 days! I would recommend your company, especially the guys mentioned above to anyone/everyone. Outstanding customer service!
Diane Dwyer
2 weeks ago
Very pleased - highly recommend!
Ellen Deutsch
2 weeks ago
Sammy is GREAT!! Cleaning was recommended and boy did it work — on my split duct system
Alyssa Goodman
2 weeks ago
Gavin and Kyle installed a new AC unit yesterday and did a great job. Very friendly and knowledgeable. Greatly appreciate them being here during a very hot 2 days.
Mary Ann Keyser
3 weeks ago
They did an amazing job replacing my ac system. My mom came home on hospice on a Wednesday. And my central air died that same day. Called them and they came right out Thursday morning to diagnose the problem. Tuesday the following week they were here bright and early. They finished up the install Wednesday. They were professional, neat clean and prompt. I highly recommend them!
Erik Stenquist
3 weeks ago
I had a scheduled annual check up of my furnace, which was installed around nine years ago. Corey was very nice. Let me know everything was fine. Gave me a couple of optional upgrades. If I was interested Landry get me informed as to when Cory would be showing up. I like the fact that they are certified employees. Great company. UPDATE. My annual furnace update again by Joe and again had a wonderful experience with Landry He was very thorough explained everything no pressure to take his suggestions which I know I will do just not at this moment. I do appreciate the staff and the service that I get from Lang.
Valerie Meadows
3 weeks 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.