Core Drilling Services in North Dakota: What to Expect
- Dave Schauer
- Jan 18
- 5 min read
Updated: 5 days ago
At Prodigy Contracting, core drilling services are a focused part of our concrete work across the Mandan and Bismarck area and the wider Upper Midwest. Core drilling means cutting clean, cylindrical holes through concrete, masonry, or asphalt using a rotary drill and a diamond core bit. It is different from general concrete cutting or demolition because the goal is a precise opening, not removal of large sections.
Clean, accurate openings are important for almost every type of project. Plumbers need straight, correctly sized holes for waste and water lines. Electricians need consistent penetrations for conduit and low voltage cabling. HVAC contractors rely on aligned openings for refrigerant lines, vents, and fresh air intakes. Engineers may need drilled cores for structural testing and quality control.
When core drilling is done correctly, it protects surrounding concrete, reinforcing steel, and finishes. It limits vibration, shortens installation time for follow up trades, and reduces dust and debris compared with older hammer methods. That precision becomes more important when you are working in finished spaces, sensitive commercial areas, or tight structural layouts.
How Professional Core Drilling Works from Start to Finish
Every project starts with planning. We evaluate slab thickness, concrete strength, and reinforcement patterns if drawings are available. Access matters as well. Stairs, narrow doors, and ceiling heights affect the choice of drill rig and power source.
We confirm core locations with owners, contractors, and utility providers before we drill. That step helps avoid cutting into rebar that must remain, embedded conduit, or active plumbing. For each hole, we determine the required diameter, drilling angle, and anchoring method for the rig so the equipment stays stable during the cut.
Our drills use diamond core bits matched to the material and thickness. In most cases, we use water-assisted drilling to cool the bit and control dust. Depending on the project, we can drill vertically through slabs, horizontally through walls, or at angles to reach equipment in tight spaces or above ceilings.
Safety and cleanliness stay at the front of our process. We secure rigs to prevent movement, control slurry with vacuums or containment methods, and shield nearby areas when needed. In occupied buildings, we coordinate with the owner so noise and access are managed.
When drilling is complete, we remove slurry and concrete plugs, then clean the area so follow up trades can work. If the scope includes patching or edge finishing, we smooth or treat the opening as specified. We also check hole size and placement so plumbers, electricians, or HVAC installers can verify that the openings match their layouts. Coordination with the general contractor keeps the overall schedule moving.
Practical Uses of Core Drilling in Homes and Commercial Buildings
In residential work, core drilling is common in basements and garages. We create openings in slabs and foundation walls for new bathrooms, kitchen rework, or laundry moves. Homeowners adding radon mitigation often need vertical cores for vent piping from the slab to the roof.
We also drill for electrical upgrades when new conduits or low voltage runs must pass through concrete. Heat pumps and high efficiency HVAC units often require penetrations for refrigerant lines, condensate drains, and fresh air ducts. Precision matters so finishes, siding, and mechanical clearances are not compromised.
On the commercial and industrial side, core drilling services support a wide range of systems. Common uses include:
• Openings for fire sprinkler piping and standpipes
• Paths for data cabling and security lines between floors
• Mechanical chases for exhaust, vents, and makeup air
• Cores for anchor bolts, machinery bases, or equipment stands.
Engineers may request cored samples from parking garages, plants, or municipal structures for lab testing. Industrial and agricultural facilities often need penetrations for process piping, utility risers, or rooftop units, where accurate drilling protects existing roofs and structural framing.
For infrastructure and site work, we drill utility penetrations through retaining walls, manholes, and vaults. Cores in sidewalks, islands, and parking lots are used for signposts, bollards, and guardrail anchors. When owners remodel or expand existing facilities, selective core drilling supports new layouts without full demolition of slabs or walls.
What to Expect When You Schedule Core Drilling with a Professional Contractor
Most projects begin with a site visit or a detailed review of drawings. We look at where the holes need to go, what size they must be, and how thick the concrete is. Access points, overhead clearance, and working conditions help us select the right equipment.
Pricing is affected by several factors:
• Hole diameter and quantity
• Concrete thickness and reinforcing
• Access challenges, such as upper floors or tight rooms
• Working hours, security rules, and cleanliness requirements.
We plan work around business hours or homeowner schedules whenever possible, especially in occupied buildings or critical facilities.
On site, our crews set up drilling rigs, protect nearby finishes, and establish dust and noise controls. Safety is built into each step, including lockout and tagout procedures on shared equipment, personal protective equipment, and compliance with OSHA and local rules. We coordinate with other trades so work areas are clear, power is available, and schedules do not conflict.
If we run into hidden rebar patterns, unexpected utilities, or inconsistent slab thickness, we stop to reassess with the project contact. Scope changes or schedule adjustments are discussed clearly before we move forward. When the work is complete, we can provide markings, notes, or photos to document each core location for owners and project managers.
Core Drilling Across the Upper Midwest: Regional Conditions and Service Coverage
North Dakota’s climate and building conditions place specific demands on core drilling. Cold weather affects concrete behavior, so winter drilling may involve frozen slabs, snow management, and indoor air quality controls. Many older foundations in the Bismarck and Mandan area include mixed materials where stone, block, and concrete meet, so bit selection and drilling speed must be adjusted.
Rural properties and remote commercial sites bring access and logistics questions. How do we move rigs across soft ground or snow? Where do we get water and power? Planning for those details helps avoid delays when crews arrive.
Across the Upper Midwest, typical projects include new housing developments, remodels of existing homes, commercial tenant improvements, municipal upgrades, and energy related work. We often coordinate with local inspectors, utility companies, and engineers, especially when penetrations affect fire separation, structural elements, or public right of way. Regional experience helps us anticipate frost line depths, drainage paths, and slab conditions around entries or loading areas.
Core drilling frequently pairs with slab sawing, wall sawing, and selective demolition. On additions or large remodels, it is common to saw control joints or openings, then drill for plumbing and HVAC, and finally remove only what is necessary for the new layout. Using one contractor for both drilling and broader concrete work can reduce handoffs and keep later phases on schedule.
Planning Your Next Project: How to Move Forward with Core Drilling Services
The best time to bring in a core drilling contractor is after layouts are set, but before finishes are installed. For existing buildings, that often means after design is complete and before framing or mechanical rough in. For new construction, core locations can be planned along with plumbing and electrical drawings to avoid rework.
Before you call, it helps to have:
• Drawings or sketches with core locations and diameters
• Slab thickness estimates or structural notes, if available
• Access information, such as floor level and entry points
• Target dates and any schedule constraints.
Working with an experienced Upper Midwest contractor helps control risk, maintain structural integrity, and keep projects moving without unnecessary demolition. Precise core drilling supports plumbers, electricians, HVAC contractors, and engineers so each trade can work efficiently and confidently on your concrete structures.
Whether you need precise core drilling services for a new build or a complex retrofit, Prodigy Contracting is ready to help you plan the work the right way from day one. Share your project details and timelines so we can recommend the best approach and provide accurate scheduling. If you are ready to move forward or want to discuss options, contact us today.




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