Preview by Search Upside · not the official Margullis Construction website

Water line repair and excavation in Renton, WA, from the meter to the house.

We’re a father-and-son crew with excavators, dozers and a backhoe. Leaking or broken water lines, trenches, grading, clearing, drainage and driveways, since 1995.

Mini excavator digging a water line trench across a front lawn, meter box beside it
Water line dig, front yard
LicensedWA general contractor MARGUCL761CW
Bonded & insured$30,000 bond · $1,000,000 liability
Since 1995Family owned, based in Renton
5.0 on GoogleAll 29 reviews are five stars

Water lines

The water district says you have a leak. Now what?

The pipe from the meter to your house is yours to fix. We come out to look, explain the options and the price, and are usually back to dig the next day.

  • Free look at the problem, before any talk of money
  • Repair the leak, or replace the whole service line
  • Small trench, clean backfill, as little concrete cut as possible
  • Homeowners referred by Cedar River Water & Sewer and other local districts
★★★★★
“We were notified by the water district that we had a leak on our side of the meter. I got in touch with Mike about replacing our water line… He located the leak and replaced our waterline in a timely and professional manner!”
Jeff C. · February 2025Water district notice

Water line repair →

Narrow trench along the front of a house with the new water line laid inWater line in an open trench with new repair couplingsClean trench across a yard with the black service line at the bottom

Recent water line jobs.

Recent work

Real jobs around Renton

Water lines, stumps, a 120 by 80 foot horse arena, new-home site prep, drainage and driveways.

All project photos

Google reviews

“Mike and his dad Doug are some of the best people on the planet”

5.0 stars from 29 reviews. Honest pricing and a fast response come up again and again.

★★★★★
“Just had Mike with Margullis come out and replaced our entire water line outside of the house… Timely, professional, trustworthy, went above and beyond (and didn’t charge extra when they ran into challenges) and less than half of the cost the big plumbing company’s bid!”
Suzanne W. · February 2025Water line
★★★★★
“Mike and his dad Doug are some of the best people on the planet. Having a water leak in a home you own is a big deal. These guys came highly recommended from my water district.”
Andy A. · November 2024Water leak
★★★★★
“Great customer service. 100% transparent and no BS scare tactics. They replaced my main waterline for me… Friendly, professional, and clean work.”
Raymond G. · November 2024Main water line
★★★★★
“Mike shows up on time, makes sure the job is done right, and under budget. A great company to call if you need material moving, excavation or leak detection services.”
Drew F. · August 2026Excavation
★★★★★
“With a very short notice and referral from Cedar River, I was surprised on how fast they responded to my call. It’s very rare to find someone to come and assess the problem without asking about $$$ first.”
Maria M. · November 2024Cedar River referral
★★★★★
“This family business was a reminder of the type of company I always want to work with! Knowledgeable, caring, honest & trustworthy… They were educational, honest and very supportive as I was freaking out a bit ;).”
Brandy · March 2026Water main

Loads big to small

Equipment, material and ground work

If it involves dirt, rock or a machine, ask.

  • Backhoe
  • Dozer
  • Excavator
  • Topsoil
  • Gravel
  • Beauty bark
  • Arena sand
  • Grading
  • Waterline repair
  • French drains
  • Dirt & brush removal
  • Backfill
  • Demo
  • Retaining walls
  • Loads big to small

Working around

  • Renton
  • Fairwood
  • Kent
  • Maple Valley
  • Covington
  • Issaquah
Call (425) 413-0555

Leak, trench or a lot to clear?

Call us. The person who looks at the job is the person who digs it.

Call (425) 413-0555