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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 Some homes in Waltham still rely on aging pipes and outdated electrical panels, while newer additions and remodels often require modern HVAC systems capable of handling year-round New England weather.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

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
22 hours ago
Very pleased - highly recommend!
Ellen Deutsch
3 days ago
Sammy is GREAT!! Cleaning was recommended and boy did it work — on my split duct system
Alyssa Goodman
3 days 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
1 week 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
1 week 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
1 week ago
Fast, courteous, great service. Thank you
David Wojcik
2 weeks ago
I was very pleased with everyone involved in the project. Garrett was especially helpful, thorough and pleasant. Landry is lucky to have him as an employee.
Lois Benotti
2 weeks ago
Clean, respectful, responsive, polite and knowledgeable. Now a days these qualities are scarce and not to be taken lightly because the competition costs as much (or more) and they will trash your house and talk to you down when you ask for a description of the problem… I only say this because it was part of my personal experience with a different company and it was very discouraging.
Yahenys Dominguez
2 weeks ago
Your guys were very professional and explained everything in detail. Snaking a drain can be very messy but they keep everything clean and organized.
Sheila Gravelle
2 weeks ago
Responded in one day (without being subscription member). Kyle reported on time and was polite, professional, and courteous. We are now subscribed customers.
Richard Dumas
2 weeks ago
It was a very pleasant experience ! The technicians were very knowledgeable and fair ! Thank u
Linda Shack
2 weeks ago
Eddy Russell is an OUTSTANDING technician and I was lucky enough to have him come to my home today. So glad I switched to Landry 4 years ago.!
MARY PARKIN
2 weeks ago
Amazing team. From on the office, scheduling to their field staff. The tech that came out was and extremely joyful, smart, technicaly prepared. Rosie was a true joy to meet and efficient. Excellent experience!!
Eric Arthur
2 weeks ago
Kyle from Landry mechanical came out and was able to help me repair my system really quickly. He was super professional, super friendly, and explained everything clearly. They have become my chosen HVAC company moving forward!
Joe Toscano
2 weeks ago
Randy and Ricky were prompt, knowledgeable, professional and clean. Great service from this company.
Heidi Quinn
2 weeks ago
We recently completed a large AC job and couldn’t be happier with Landry’s service. From the sales team to the install team, everyone was great to work with. They were timely, communicative and affordable to work with. I highly recommend Landry for your HVAC needs.
Alyson Turner
2 weeks ago
Landry technicians replaced my HW heater and smoke detectors. Both Teams were excellent - extremely courteous, efficient and professional. I have had Landry do alot of work to my house (HVAC, electric, plumbing) and they always do a fantastic job!
Michael Casey
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.