Service

Backflow Prevention

Certified backflow testing, repairs, and new backflow preventer installs for Northern Colorado Properties

Overview

Protect Your Drinking Water—Avoid Fines & Failures

A failed or overdue backflow test can contaminate potable water, trigger code violations, and jeopardize insurance. Ignoring it risks costly shutdowns and emergency repairs. We test, service, and replace backflow assemblies so your property stays compliant and safe.

Certified Testing. Clear Reports. Code-Compliant Repairs.

You get a certified backflow test with documented results for your jurisdiction, plus straightforward repairs or replacement if the assembly fails. Expect quick scheduling, tidy work, and help with annual reminders so you stay ahead of deadlines—without the paperwork hassle.

Key Benefits

What You Get

Every backflow prevention job includes these standards.

Annual backflow testing for residential, irrigation, and light commercial assemblies
Documentation & submittals for local water districts and AHJs
Repairs & parts: checks, springs, seats, o-rings, relief valves, and cartridges
Replacement installs for failed or outdated RP, DC, PVB, and SVB assemblies
Irrigation backflow setup: freeze protection, insulation covers, isolation valves
Maintenance plans with annual reminders and preferred scheduling

How It Works

A simple, transparent process
from quote to clean-up.

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Ready when you are

Let's get your plumbing handled.

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Verified Reviews

What Northern Colorado says about us.

Real reviews from real homeowners and businesses across the Front Range.

5.0

Google Reviews

Ariana Cooper

11 months ago

Best of the best!!!! Called 2 different times for emergencies and this company came to my rescue RIGHT AWAY!!!! Saved my house from serious damage both times!!! I live in an old rental and had two different leaks in the same month and these guys saved my entire house!!!!! VERY reasonably priced, very professional and showed up exactly when I needed them!! I will never ever call another plumber!!!!! BEST OF THE BEST!!!!!!

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Kathleen Atphasouk

11 months ago

Colton fixed my garbage disposal and it works like new now! He was professional and very educated in what he does.

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Paige Nguyen

11 months ago

Kitchen faucet was leaking into the cabinet. OnGrade was on time and fixed the faucet quickly. Mentioned the thermostat wasn't working and they put a new one in for me for a few hundred dollars. Now I can control the heat and AC from my phone.

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Callie Jordan

11 months ago

Friendly, on time, and recommend.

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Jeff Miller

11 months ago

Came home and the toilet was broken and just running water for who knows how long. 28 minutes after my call, they were there, stopped the water, and fixed it way faster than I even hoped for. My first call will always be here!

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Steffine Turner

11 months ago

Fast and reliable service! Have done lots of amazing work for our company! This company is so honest. Would recommend them 100%.

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Jacob Lawton

11 months ago

I heard about this company from a friend who highly recommended them. I needed some work done on a tub drain, and it turned out to be the entire p-trap that needed replacement. The highly knowledgeable plumber, Colton, diagnosed and replaced everything quickly and efficiently. These guys are the best!

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Nicole Wulf

11 months ago

I had a fantastic experience using OnGrade Plumbing. From the moment their plumber arrived, he was on time, efficient, knowledgeable, friendly and overall very professional. He clearly takes pride in his work. He did a thorough review and provided us with several options for repairs. Will use again if the need arises.

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justgymmom

11 months ago

Colton replaced my water softener and flushed my water heater. He was prompt, made helpful suggestions, and kept a clean work environment. His price was lower than I expected. I was very pleased and will use him and this company again.

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FAQ

Frequently Asked Questions

Straight answers about scheduling, pricing, permits, and the work itself.

Yes. OnGrade is one local crew for both the dig and the pipe work, so you don't have to coordinate multiple contractors. We manage sewer and water service line replacements, underground gas lines, and site work end-to-end across Northern Colorado — including permits, locates, pressure testing, and clean backfill.

For active leaks, sewer backups, or no-hot-water situations, we aim to be on site the same day whenever possible. Call our office and we'll confirm a clear arrival window, give you steps to limit damage in the meantime, and bring the gear to diagnose and fix the issue on the first visit.

Yes. OnGrade is fully licensed and insured, and every job is completed to current Colorado plumbing and excavation code. We pull permits when required, coordinate inspections, and document the work so your home, build, or property stays compliant and protected long after we leave.

We install, repair, and replace all types of water heaters including traditional tank, tankless, heat pump, and high-efficiency models. We'll assess your household's hot water demand, energy preferences, and budget to recommend the best system for your home.