Underground Infrastructure
Site Utility Construction Services
Water, sewer, storm, and dry utilities installed, tested, and inspected for commercial builds across Southeast Texas.
- Wet & dry utilities under one contract
- OSHA trench protection on every dig
- Testing, inspections & as-builts handled
15+
Years Experience
200+
Jobs Delivered
Licensed
& Bonded
Wet + Dry
One Contract
Everything above ground depends on what runs below it.
Every commercial building depends on what runs beneath it. Water, sewer, storm drainage, fire protection, power, and telecom all have to reach the pad at the right depth, grade, and location, and they have to pass inspection before anyone can occupy the building. When that underground scope falls behind, everything above it waits.
MBC Management is a full-service construction firm that has been building across Southeast Texas since 2005, and underground utilities are a core part of what we deliver. We help infrastructure teams build, extend, and maintain subsurface systems for a broad array of owners, developers, and general contractors, from single-tenant pads to multi-building campuses. Our crews handle excavation, installation, testing, and restoration under one contract, so your site utility scope is coordinated with grading and pavement instead of fighting them. The result is a job that stays on schedule and services that work the day the building opens.
Full Scope
Underground Utility Construction for Commercial Sites
Domestic Water & FireService, hydrants, valves, and vaults
Sanitary SewerGravity mains, laterals, manholes, cleanouts
Storm DrainageInlets, junction boxes, outfalls
Dry UtilitiesConduit and duct banks for power & telecom
Underground utility construction on a commercial job covers far more than digging a trench and laying a run of pipe. A typical scope includes domestic water and fire service, sanitary sewer, storm drainage, and the conduit and duct banks that carry power and telecom to the building. Each system has its own material specs, depth and slope requirements, separation rules, and inspection process, and all of them have to fit together in the same crowded corridor.
We build all of it. Our crews install PVC, ductile iron, and HDPE for water service; SDR-rated PVC for gravity sewer; reinforced concrete and HDPE for storm drainage; and Schedule 40 conduit for dry utilities. We set manholes, cleanouts, inlets, junction boxes, and valve vaults, and we tie into existing public mains at the property line.
Because one team owns the whole underground package, conflicts get caught on paper instead of in the field. We review the civil plans for crossings and clearance issues before mobilizing, flag problems early, and coordinate with the engineer of record so changes are approved before they cost you time. For general contractors, that means fewer RFIs, fewer change orders, and underground utilities that are in place and inspected before vertical construction needs the pad.
Tap to Building
Utility Installation From Tap to Building
Public Tap
Wet taps on live mains and saddle connections.
Meter & Backflow
Set to the provider's standards and ready to test.
Service Run
Restrained at every bend, set to line and grade.
Stub-Out
Surveyed, marked, and photographed before backfill.
Utility installation starts at the public tap and ends at the stub-out where the building trades take over. On the water side, we make wet taps on live mains, set meters and backflow preventers, and run domestic and fire service to the building with thrust blocking and restraint at every bend. On the sewer side, we install service laterals at the specified slope, set cleanouts, and connect to the public system through a new manhole or saddle connection.
Stub-out locations are where a lot of jobs go wrong. If a sewer lateral lands six inches off the plumbing plan, the plumber either chases it under a finished slab or the slab gets cut. We survey every stub-out against the architectural and MEP drawings, set it to exact elevation, mark it clearly, and document it with photos and coordinates before backfill.
That precision carries through to dry utilities, where we place conduit, pull strings, and handholes to the provider's standards so power and telecom can energize on schedule. Operating as a single utility contractor for wet and dry systems means one point of contact and no gaps between scopes.
Public Infrastructure
Water Mains, Sewer, and Storm Lines
Larger developments often need public infrastructure, not just private service. We extend water mains along new streets, install fire hydrants and valves at the spacing the fire marshal requires, and build sanitary sewer lines at the grades the city has approved. When gravity flow isn't possible, we install lift stations and force mains to move wastewater uphill to the nearest connection point.
Storm drainage gets the same care. We build storm sewers, curb inlets, area drains, and outfall structures, and we connect them to detention basins and channels so runoff leaves the property at the permitted rate. Getting the slope right matters, because storm and sanitary systems depend on gravity, and a few tenths of a percent off grade can leave standing water or a backed-up sewer.
Texas cities have installed millions of feet of water and sewer pipe over the past century, and much of it is aging. On redevelopment sites, we regularly uncover old mains, abandoned services, and undocumented utilities. Our crews locate, protect, relocate, or abandon them correctly so new infrastructure goes in clean and existing customers stay in service.
Hydrants & Valves
Spaced to fire marshal rulesLift Stations
When gravity flow can'tForce Mains
Wastewater moved uphillInlets & Outfalls
Runoff released at the permitted rate
Dig Safe
Excavation, Trenching, and Trench Safety
Utility excavation is some of the most dangerous labor on any job, and we treat it that way. Before we dig, we call Texas 811 for locates, pothole critical crossings to confirm what's actually there, and review the geotechnical report for soil type and groundwater. Every trench 5 ft or deeper gets an OSHA-compliant protective system, whether that's sloping, benching, a trench box, or engineered shoring, and a competent person inspects it daily and after every rain.
Groundwater is common across the Gulf Coast, so we bring wellpoints and pumps when a dig needs dewatering. Bedding goes in at the specified depth and material, each run is set to line and grade with laser or GPS control, and backfill is placed in lifts and compacted to the density the plans call for. Density testing under paving and building pads is documented, because a trench that settles shows up later as a cracked parking lot or a sagging sidewalk.
We restore what we disturb. Sawcut edges, base, and surface are replaced to match, so the finished job looks like the trench was never there. Clean restoration also protects neighboring tenants and public roads, which keeps the city satisfied and your permits in good standing.
Texas 811 LocatesCalled before every dig
Potholing at CrossingsConfirm what's actually in the ground
Protective SystemsSloping, benching, boxes, or shoring at 5 ft+
Competent-Person ChecksDaily and after every rain
Compacted BackfillPlaced in lifts and density-tested
Sequenced Right
Coordinating Utilities With Site Development
Before the Pad
Deep Systems First
- Sanitary & storm at depth
- Fire service stubbed
- Crossings resolved on paper
Before Surfacing
Dry & Final Tie-Ins
- Conduit and handholes placed
- Stub-outs surveyed & marked
- Backfill density documented
Utilities don't happen in a vacuum. They share the ground with mass grading, building pads, foundations, pavement, and landscaping, and the order those trades go in decides whether the job runs smoothly or turns into a string of conflicts and patches. We plan the underground scope as part of site development, not as a separate job dropped in whenever the trench crew is free.
That means installing deep sewer and storm before the pad is finished, setting water and fire service so they don't block other trades, and sequencing dry utilities so pavement crews aren't waiting on conduit. Because MBCM also handles grading, building pads, and paving, we can schedule the full package around your critical path instead of handing off between subcontractors who each protect their own schedule.
We keep the owner, general contractor, civil engineer, and utility providers in the loop with regular updates, and we flag conflicts as soon as we see them. When the plans and field conditions disagree, we bring a proposed fix with the problem, not just the problem. That habit saves days on almost every job, and on fast-track commercial construction it can save weeks.
Tested & Accepted
Underground Utility Services From Plan to Closeout
Our underground utility services don't end when the trench is backfilled. Every system has to be tested and accepted before the building can open, and that paperwork is where many schedules quietly slip. We handle testing and documentation as part of the scope, not as an afterthought.
Water systems are pressure tested and disinfected, with bacteriological samples submitted for clearance. Gravity sewer gets air or water testing, mandrel deflection checks on flexible material, and CCTV inspection when the city requires it. Storm systems are inspected for alignment and joint integrity, and dry conduit is proven with a mandrel before the provider pulls cable.
We coordinate inspections with the city, the utility district, and private providers, keep test reports organized, and deliver accurate as-builts that show what was installed and where. Those records matter long after closeout, helping owners and facility teams locate, repair, and expand their utility infrastructure years down the road without guessing. When the last inspection is signed, you get a clean closeout package and underground systems that are ready to serve.
Pressure & BacteriologicalWater systems cleared for service
Air Tests & MandrelsGravity sewer and conduit proven
CCTV InspectionWhere the city requires it
Accurate As-BuiltsWhat went in, and where
Where We Build
Serving Houston, Navasota, and Surrounding Counties
MBC Management has been building across Southeast Texas since 2005, with offices in Houston and Navasota serving Harris, Montgomery, Waller, Grimes, Washington, and Brazos counties, including Bryan-College Station. We know the local utility districts, the city inspectors, and the clay and groundwater conditions that make underground work in this region different from anywhere else.
That local knowledge keeps jobs moving. We know which jurisdictions require CCTV on new sewer, how long tap applications take, and what each inspector wants to see before signing off. Our crews and equipment stay close enough to mobilize quickly, whether you need a full underground package or a single tie-in to finish a building.
If your next development needs the underground scope done right the first time, we'll review your civil plans, walk the property, and give you a straight price and a realistic schedule. Reach out today to talk through your projects with a team that builds what it promises.
Houston Metro
Harris & Montgomery countiesNavasota
Grimes County officeBryan–College Station
Brazos CountyWaller & Washington
Surrounding counties
Wet TapsFire ServiceGravity Sewer
Lift StationsStorm DrainageDuct Banks
Trench SafetyAs-Builts
Below Grade, On Schedule
Get Your Underground Scope Right
Whether it's a single tie-in or a full underground package, MBCM installs, tests, and documents every system so your building opens on time. Reach out today for a plan review and a straight price from a team that builds what it promises.
