Commercial Plumbing in Okemos, MI. Licensed Work That Meets Code and Holds Up.
We handle commercial plumbing for offices, retail spaces, and light commercial builds throughout Mid-Michigan, with the licensed craftsmanship and accountability that commercial work requires.
Licensed & Insured Michigan Plumber
Locally Owned & Operated in Greater Lansing
Upfront Pricing With No Surprises
Satisfaction Guaranteed on All Work
Commercial plumbing is not just residential plumbing at a larger scale. Commercial spaces have different code requirements, higher fixture usage demands, more complex drainage configurations, and in many cases the need to coordinate work around business hours so operations are not disrupted. A plumber who does not work regularly in commercial environments will miss details that cause problems down the road.
Custom Built Plumbing handles commercial plumbing work backed by the same standards and accountability that Custom Built Plumbing has applied to design-build projects in Mid-Michigan for over 20 years. We work efficiently, communicate clearly, and produce work that passes inspection the first time.












Commercial Plumbing Services
Tenant Build-Outs
Rough-in and finish plumbing for new commercial tenant spaces, including restrooms, break rooms, and utility connections.
Fixture Installation and Replacement
Commercial-grade toilets, sinks, faucets, and hands-free fixtures installed to spec.
Fixture Installation and Replacement
Commercial-grade toilets, sinks, faucets, and hands-free fixtures installed to spec.
Drain and Sewer Service
Commercial drain cleaning, camera inspection, and repair for high-usage drain systems.
Water Heater Service
Commercial water heater installation, repair, and replacement for offices and light commercial buildings.
Backflow Preventer Installation and Testing
Required by code for commercial water connections and annual certification in Michigan.
Supply and Drain Upgrades
Replacing aging pipe infrastructure in older commercial buildings.
Restroom Additions and Renovations
Plumbing rough-in for new or expanded restroom facilities.
Grease Trap Service
Installation and maintenance for commercial kitchens and food service spaces.
How We Approach Commercial Work
Commercial plumbing jobs require more coordination than residential work. We review scope with the property owner or general contractor before starting, confirm permit requirements, schedule work to minimize business disruption where possible, and communicate clearly about timeline and any changes that come up during the job.
We pull the required permits, schedule inspections, and do not consider a job complete until it has passed. If an inspection requires a correction, we handle it without additional charges for the re-inspection.


Commercial Plumbing Cost in Okemos, MI
Commercial plumbing is scoped and priced by job. A single fixture replacement is straightforward. A full tenant build-out with restroom rough-in, drain tie-in, and utility connections requires a detailed scope before an accurate number can be given. We are happy to walk through your project, review plans if available, and give you an honest estimate. Call (517) 742-2848 to start that conversation.
Why Choose Plumbing by Custom Built
We are licensed, insured, and backed by over 20 years of design-build experience in this market. We understand what commercial work requires in terms of code compliance, coordination, and accountability to a project timeline. We produce work that passes inspection and holds up under commercial usage demands.
Years In Mid-Michigan
5-Star Reviews
%
Satisfaction Guaranteed
FAQs
Do you work with property managers and general contractors in Okemos?
Yes. We work with both directly and are set up to coordinate with GCs on larger build-out projects, including reviewing plans, pulling permits, and scheduling around other trades.
Do you handle backflow preventer testing and certification in Okemos, MI?
Yes. Michigan requires annual backflow preventer testing and certification for commercial water connections. We perform the testing and provide the required documentation for the municipality.
Can you work outside of regular business hours to minimize disruption?
In many cases, yes. We work with business owners and property managers to schedule commercial work at times that minimize impact on operations. Contact us to discuss your specific situation.
What size commercial projects do you take on?
We focus primarily on offices, retail spaces, restaurants, and light commercial buildings. We are the right fit for tenant build-outs, single-building commercial service, and projects that require a responsive, accountable plumbing contractor rather than a large commercial subcontractor.
Do you offer ongoing maintenance contracts for commercial properties in Okemos?
We can, particularly for grease trap service, backflow testing, and other work that needs to happen on a set schedule. Talk to us about your property's specific needs and we'll put together a maintenance plan that fits.
Commercial Plumbing That Gets Done Right and Passes Inspection
Call us today to talk through your project and get an honest estimate from a licensed Mid-Michigan plumber.
