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Top-Rated Water main install, replace or repairers in Mount Vernon - Updated Nov 2026

Step Up Building & Septic, LLC
4.1(
38
)
Water Main - Install, Replace or Repair

Serving Mount Vernon, WA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"If you need your home project done right and for a damn fair price call Nick at Step Up Building & Septic, LLC. Nick was very professional and answered all my questions and his network of people he knows will work for any project. When Nick was done everything was cleaned and my project was completed earlier than expected. Thanks, Nick we will hire you again. John H."
Response time1 day
3 neighbors recently requested a quote
Recommended by93%of homeowners
John's Handyman Service
5.0(
1
)
Water Main - Install, Replace or Repair

Serving Mount Vernon, WA and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quick response

John's Handyman Service: "One call does it all" With 35 years experience in the business, I pride myself on my professionalism, as well as my ability to complete each project to the homeowner's total satisfaction. I never leave a project unfinished, or a homeowner not 100% satisfied with my level of service. Call today!

Bathroom tile job
Bathroom tile job
Bathroom tile job
Exterior hand rail
Rail

+14

Response time6 hrs
Response rate86%
Recommended by100%of homeowners
Avatar for Dig Right LLC
Dig Right LLC
5.0(
3
)
Water Main - Install, Replace or Repair

Serving Mount Vernon, WA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I have had the pleasure of working with the owner of this excavation company on a residential project, and the service was exemplary. He went out of his way to help with the preparation of the house, making sure everything was in order before the continuation of work. Knowledgeable, efficient, and clear, he kept us updated every step of the way. The attention to detail and willingness to accommodate changed everything and were the reason I would highly recommend his services to anyone in need of reliable professional work."
Avatar for new image excavation and tree service LLC
new image excavation and tree service LLC
5.0(
2
)
Water Main - Install, Replace or Repair

Serving Mount Vernon, WA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time2 days
Recommended by50%of homeowners
Frizzell Construction
5.0(
1
)
Water Main - Install, Replace or Repair

Serving Mount Vernon, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

We're a locally owned and operated company that values honesty and integrity in all \naspects of our business with over 20 years experience. We offer a variety of excavation services that are customizable to each individual project. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

Little mnt shop
Little mnt shop
Little mnt shop
Little mnt shop
Little mnt shop

+11

Response time2 days
Response rate87%
6 neighbors recently requested a quote
Avatar for Danika Plumbing, LLC
Danika Plumbing, LLC
4.1(
286
)
Water Main - Install, Replace or Repair

Serving Mount Vernon, WA and surrounding areas

In business since 2002

Emergency services offered

Credit card accepted

"I spoke to Danika Plumbing at 8:30am re: replacing my broken HWT& Dustin & his coworker (wish I remembered his name) were at my home at 1:30. It turned out to be a complicated replacement due to the previous bad installation. The space was tight so they needed to retrieve a different HWT than they had in their truck & I'm extremely happy with it. Dustin also custom reconstructed all the venting to the furnace & sealed it properly as well as created attachments to the wall which it previously didn't have. All in all, this was not just a standard replacement & took much longer than expected but Dustin & co-worker handled it efficiently & with skill. They really care that it is all done right. Great senses of humor as well! I would definitely want to work with them again on any other plumbing install/repair. Kimberly S. Edmonds, WA"
New Laundry Room
Gas Water Heater Install
Water Main Repair
Water Pressure System Install
Found the leak!!

+10

Response time12 hrs
Recommended by86%of homeowners
Avatar for Seatown Electric Plumbing Heating & Air
Seatown Electric Plumbing Heating & Air
4.8(
1,394
)
Water Main - Install, Replace or Repair

Serving Mount Vernon, WA and surrounding areas

In business since 2013

Emergency services offered

Warranties offered

"Seatown Electric did a great job and I will call them again when I have electrical repair or installation needs. They were very responsive - even on the weekend. They returned messages and calls promptly. They provided status updates of where my technician was by text message regularly. My technician, Taylor, was prompt, professional and helpful. Everyone that I spoke with at Seatown was equally professional and helpful."
Generator Repair
Additional Photos
Additional Photos
Electrical Panel Repair
Additional Photos

+44

Recommended by94%of homeowners
Avatar for Home Comfort Alliance
Home Comfort Alliance
4.7(
341
)
Water Main - Install, Replace or Repair

Serving Mount Vernon, WA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"Starting with the sales process, Nate was informative and great. Could've sold me a more expensive replacement system, but instead identifies how my current system cod be retrofitted with a heat pump. That sold me on G&S right there. Everything from the initial install review, the office staff working with my lender, to Izaak and the install and electrical teams, was punctual, informative and professional. I've had several bad experiences with other contractors, but I would confidently recommend G&S for any job and plan to use them again for a generator switch install. Good people with a good business. Thank you G&S!"
Additional Photos
Choose Home Comfort Alliance for professional HVAC installation.
Seattle’s HVAC installation pros provide efficient, reliable service.
Get Reliable, High-Quality HVAC Installation in the Seattle-Tacoma Area.
Home Comfort Starts with Professional HVAC Installation.

+1

Response time1 day
Response rate100%
Recommended by91%of homeowners
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FAQs for water main install, replace or repair projects in Mount Vernon, WA

Most standard homeowners' policies don’t cover water main line replacement costs because this project is considered wear and tear, not sudden damage. Check your declarations page for exclusions and talk with your agent about add-on service-line coverage if you want help footing the bill for your water main line replacement costs.

Yes—hire a licensed plumber any time the job taps into a city-owned line or local codes. Professional plumbers carry the right permits, tools, and insurance, and they know how to avoid costly mistakes that could flood your yard or trigger fines. Pros can also provide expert recommendations on the type of system and materials that will work best for your situation, and they can guide you on best practices for ongoing maintenance.

The Mount Vernon, WA homeowners’ guide to water main install, replace or repairs

From average costs to expert advice, get all the answers you need to get your job done.