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!!!!!!
Plumbing & Excavation in Centennial
Licensed local service and code-compliant results for homes and small commercial in Centennial
Trusted Plumbing and Underground Work in Centennial
OnGrade Plumbing & Excavation serves Centennial with licensed technicians who troubleshoot quickly and complete work to code. We support residential and small commercial needs, including water heaters, water filtration, sewer and hydro jetting, gas line work, septic systems, boilers and hydronic heat, and underground water service line repair or replacement. Permits are coordinated when needed, interior and landscape areas are protected, and the job site is left clean.
- Licensed & insured local techs
- Upfront pricing, no surprises
- Code-compliant, inspection-ready
- One crew for plumbing + dig
Why Centennial Chooses OnGrade
A local team built for honest work, fast response, and clean job sites.
- Licensed & Insured
Fully licensed local crew — every job code-compliant and inspection-ready.
- Fast Response
Same-day callbacks and rapid arrival across the Front Range.
- One Crew, Both Trades
Plumbing and excavation handled by one team — no juggling contractors.
- Upfront Pricing
Clear written quotes after diagnosis — no surprises, no pressure.
A simple, transparent process
from quote to clean-up.
What Northern Colorado says about us.
Real reviews from real homeowners and businesses across the Front Range.
Frequently Asked Questions
Straight answers about scheduling, pricing, permits, and the work itself.
More questions?
Visit the Full FAQOther Service Areas
Schedule Plumbing or Excavation in Centennial
Serving Centennial, CO and surrounding areas
Tell us what you need, from hot water and filtration to jetting, gas, septic, and water line work. We will confirm timing, quote clearly, and complete the job to code with a tidy finish.





