Fast Local Dispatch: Serving Weymouth, MA & Nearby Areas
3.7 Stars on Google (6 verified reviews)
Emergency Priority

MacDougall Plumbing & Mechanical LLC

Master plumbing & mechanical craftsmanship serving Weymouth, Cambridge, Newton, Somerville, Brookline, and Watertown with 24/7 response and straightforward upfront pricing. Serving distinguished homes and properties throughout Weymouth, MA with impeccable care, clean work sites, and uncompromising precision.

✦ Historic & Architectural Care
✦ Dust & Floor Protection
✦ Written Lifetime Guarantee
MacDougall Plumbing & Mechanical LLC craftsmanship in Weymouth
Regional Mastery: Weymouth, MA
historic Boston triple-decker plumbing, cast-iron sewer stack repiping, galvanized line upgrades, hydronic boiler freeze protection
Dedicated Service Scopes

Expert Solutions for Weymouth Homes

From scheduled maintenance to major infrastructure overhauls, executed to the highest trade standards.

01

24/7 Emergency Pipe, Drain & Leak Repair

Burst supply lines, jammed drain pipes, and blocked vents don't wait for business hours — and neither do we. We answer 24 hours a day and dispatch to Weymouth and surrounding towns with diagnostic tools on the truck to find the failure point and make it watertight, usually the same visit.

  • ✓ Code-compliant installation
  • ✓ Upfront agreed pricing
  • ✓ Workmanship warranty included
02

Cast-Iron Sewer Stack Repiping

Century-old cast-iron stacks and sewer laterals scale shut, crack at the joints, and rot from the outside in. We camera-inspect the run, then replace failing sections with properly sloped PVC or no-hub cast iron — pulling permits and coordinating inspection so the job passes the first time.

  • ✓ Code-compliant installation
  • ✓ Upfront agreed pricing
  • ✓ Workmanship warranty included
03

Galvanized Supply Line Upgrades

Galvanized steel piping corrodes from the inside, cutting water pressure and tinting tap water brown. We repipe homes to type-L copper or PEX with correctly sized mains and individual fixture stops, restoring full pressure to every bathroom on every floor — including tricky triple-decker layouts.

  • ✓ Code-compliant installation
  • ✓ Upfront agreed pricing
  • ✓ Workmanship warranty included
Physical Proof of Work

Visual Transformations & Upgrades

Real project comparisons demonstrating code-compliant modernizations and equipment replacements in Weymouth.

Recent Work from MacDougall Plumbing & Mechanical LLC

Photos from MacDougall Plumbing & Mechanical LLC's verified Google listing and local portfolio

Actual business photos
Work photo from MacDougall Plumbing & Mechanical LLC's gallery
Work photo from MacDougall Plumbing & Mechanical LLC's gallery
Work photo from MacDougall Plumbing & Mechanical LLC's gallery
Every Job, Our Standard
  • Fully licensed & insured mechanical team
  • Upfront itemized quotes before work begins
  • Respect for your home — tidy and swept work sites
Warranty discussed with your estimate
Get a Free Estimate → 📞 Dispatch

High-Efficiency Tankless Conversion

Aging 50-gal cylindrical tank in basement with leaking relief valve and sediment buildup

Illustrative example — not MacDougall Plumbing & Mechanical LLC's work
Before upgrade BEFORE
After upgrade AFTER
Key Upgrade Specifications
  • Licensed, code-compliant installation
  • Upfront pricing agreed before work begins
  • Work area cleaned up on completion
Warranty discussed with your estimate
Request This Upgrade → 📞 Dispatch

Basement Sewer Stack Modernization

Cracked, calcified cast-iron sewer stack weeping wastewater at cleanout fitting

Illustrative example — not MacDougall Plumbing & Mechanical LLC's work
Before upgrade BEFORE
After upgrade AFTER
Key Upgrade Specifications
  • Licensed, code-compliant installation
  • Upfront pricing agreed before work begins
  • Work area cleaned up on completion
Warranty discussed with your estimate
Request This Upgrade → 📞 Dispatch

Hydronic Boiler Zone & Piping Manifold

Aging uninsulated heating pipes with sticking zone valves and pressure imbalance

Illustrative example — not MacDougall Plumbing & Mechanical LLC's work
Before upgrade BEFORE
After upgrade AFTER
Key Upgrade Specifications
  • Licensed, code-compliant installation
  • Upfront pricing agreed before work begins
  • Work area cleaned up on completion
Warranty discussed with your estimate
Request This Upgrade → 📞 Dispatch
Customer Testimonials

Verified Feedback from Neighbors in Weymouth

Real feedback from local property owners who trusted MacDougall Plumbing & Mechanical LLC with their mechanical and home services.

★★★★★

“Macdougall Plumbing & Mechanical are the best in the area! I called them and a few hours later, they arrived and quickly diagnosed my problem. My vent was blocked and within a few minutes they cleared it out. They are quick and get the job done. Can’t ask for anything more”

Kevin Bilo Verified Local Customer
★★★★★

“I had an emergency situation, my kitchen sink drain pipe got jammed. I called them and they showed up same day. Fix the issue in no time. Thank you!”

Terrance onzalez Verified Local Customer
★★★★★

“I’ve been meaning to write this review for a while and just hadn’t gotten around to it. I had Stephen come out to work on my minisplits and he was phenomenal! He’s extremely knowledgeable, personable, and professional. You can tell he’s passionate about what he does and it really shows in the quality of his work. I had a loose hose in one area, and Stephen had the experience, tools, and was able to fix it quickly without any issues. …”

Richie Eats Verified Local Customer
MacDougall Plumbing & Mechanical LLC team and work vehicle in Weymouth
● Serving Weymouth, MA & Nearby Communities
Local Heritage & Values

About MacDougall Plumbing & Mechanical LLC

Founded on principles of honest craftsmanship, upfront communication, and technical excellence, MacDougall Plumbing & Mechanical LLC has served the Weymouth area with dependable residential and commercial mechanical services.

Our technicians are fully licensed, insured, and background-checked. We specialize in historic Boston triple-decker plumbing, cast-iron sewer stack repiping, galvanized line upgrades, hydronic boiler freeze protection, ensuring your property remains protected and efficient year-round.

Fully Licensed & Insured
3.7-Star Google Reputation
Upfront Itemized Pricing
Zero Travel Surcharges

Local Coverage Across Weymouth, MA

Our licensed service trucks are stationed locally to provide rapid response times throughout Weymouth, Cambridge, Newton, Somerville, Brookline, Watertown.

Guaranteed Dispatch Radius
Weymouth & Surrounding Municipalities
No long-distance travel fees for standard service calls within our core operating territory.
Connect With Us

Request an Upfront Estimate

Reach out directly by phone or submit your project details below for a prompt, itemized response.

Direct Phone Line
(617) 698-6740
Physical Service Base
406 Libbey Pkwy, Weymouth, MA 02189
Weymouth, MA 02189
Operational Hours
Monday: Open 24 hours, Tuesday: Open 24 hours, Wednesday: Open 24 hours, Thursday: Open 24 hours, Friday: Open 24 hours, Saturday: Open 24 hours, Sunday: Open 24 hours

Fast Project Estimate

Fill out the form below and a technician will follow up promptly.