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Dental Equipment Planning

Who installs dental equipment, contractor or dealer?

By Dimitri LopezLast updated 7 min read

On this page
  1. Key facts
  2. Where exactly is the line between contractor and dealer?
  3. Why does this split go wrong so often?
  4. Who handles data and network at the chair?
  5. When does the dealer actually install?
  6. What about the mechanical room and imaging?
  7. What should the contracts say?
  8. Which free tools help with this?
  9. How FloorStack helps
  10. Free tools for this step
  11. Frequently asked questions
  12. Sources

Both, split at the stub-out. In 2026, the contractor's licensed trades bring air, water, vacuum, drains and power to the exact spots on the dealer's templates, and the dealer's technicians set and connect the equipment. A-dec, for example, has the contractor supply the shutoff valves and the hospital-grade receptacle (A-dec 511 pre-installation guide).

Key facts

ItemWho it usually falls toSource
Air and water shutoff valves (3/8" compression outlet, handle top no higher than 3-3/4" above finished floor)Contractor supplies and installsA-dec 86.0753
Chair conduit, electrical box and hospital-grade quad receptacle (box top no higher than 5" above floor)Contractor, wired per codeA-dec 86.0753
Gravity drain trap (cuspidor systems)Contractor-suppliedA-dec 86.0753
How utilities are accessed inside the wallThe "design team": dealer, architect and contractorsA-dec 86.0753
Site condition before equipment installFloors, ceiling, plumbing, lighting and paint completeA-dec 86.0753
Pano/CBCT power200–240 V, 20 A dedicated hardwired circuit, finished before install dayDentsply Sirona Imaging Site Survey
Treatment-center supply connectionsQualified technicians onlyDentsply Sirona Axano requirements

Where exactly is the line between contractor and dealer?

The cleanest way to think about it is the stub-out. Everything inside the walls, floor and ceiling up to a capped valve, a box or a pipe end belongs to the building, so it's the general contractor's scope. Everything that bolts to the floor, hangs on the wall or plugs into those stubs is equipment, so it belongs to the dealer.

Manufacturer pre-installation guides draw the line the same way. A-dec's chair guide says the contractor supplies and installs the air and water shutoff valves and the conduit, box and receptacle, and that local regulation may require licensed plumbers and electricians to install the utilities (A-dec 86.0753). Dentsply Sirona's Axano requirements say supply connections must be made by qualified technicians only and include a checklist to confirm every requirement is met before install (Dentsply Sirona).

A typical split looks like this. Treat it as a starting point for your contract, not an industry rule:

Scope itemGeneral contractor and tradesEquipment dealerIT / low-voltage
Equipment specs, templates, utility locationsBuilds to themProvides themGets data locations
Wall blocking for lights, monitors, panoInstallsSpecifies—
Air, water, vacuum and drain rough-in and shutoffsInstallsSpecifies—
Dedicated circuits, chair receptaclesInstallsSpecifies—
Data conduit and drops at the chairConduit often GCSpecifiesPulls and terminates cable
Chairs, delivery systems, lights, cabinetryProtects finished spaceDelivers, sets, connects—
Compressor and vacuumRoom, power, pipingSets and starts up unitsNetwork if "smart" units
Pano/CBCTShielding, blocking, hardwired powerInstalls unit, calibratesNetwork, imaging PC

Whether the dealer or a millwork sub installs cabinetry, and who runs the vacuum and air trunk lines to the mechanical room, varies by project. Write it down.

Why does this split go wrong so often?

Because three parties design pieces of the same wall. Corporeal Visions, a dental design-build contractor, says the most common preventable problem it sees is construction documents finalized before equipment specs are locked, and estimates that change orders after drywall can run 200–400% higher than the same work in the original scope (Corporeal Visions). That's one contractor's estimate, not a survey, but anyone who has moved a floor box after the slab is poured knows the direction is right.

The usual failures:

  • The chair brand changes after rough-in, and the floor box is in the wrong place.
  • The compressor is chosen after the mechanical room is framed and wired.
  • The pano wall wasn't reinforced. Dentsply Sirona's standard pano mount needs the wall to hold 160 lb on each of two wall bolts at 76-3/4" above the floor (Dentsply Sirona Site Survey).
  • Nobody owned the data drop at the chair, so the delivery system's network port has no cable.

Who handles data and network at the chair?

Usually the IT or low-voltage contractor, but only if someone tells them. Modern delivery systems are network devices. A-dec's chair guide calls for a 2" conduit for network/data and says A-dec+ connectivity needs either 10/100 Ethernet or Wi-Fi with WPA2-Personal, and it recommends Ethernet with Cat5e or better (A-dec 86.0753). That one line touches three scopes: the GC's conduit, the dealer's spec and the IT provider's cable and switch port. See how many network drops each operatory needs and when to bring IT into a build-out.

To get every drop onto one schedule, FloorStack Studio (live, free plan) places each device on your floor plan, and the free network & IT plan generator (coming soon) is planned to turn that into a drops and rack plan your low-voltage contractor can bid.

When does the dealer actually install?

After the room is finished. A-dec's guides say job-site construction should be completed before dental equipment installation, including finished floors, ceiling, plumbing, lighting and paint (A-dec 86.0753). Dentsply Sirona says electrical work for imaging must be completed before installation day (Dentsply Sirona Site Survey).

So the dealer touches the project twice: early, to hand over specs and templates before construction documents are final, and late, to install. Corporeal Visions suggests equipment selection be substantially complete 4–6 weeks before permit submission (Corporeal Visions). Track both dates in the schedule; the free permit & inspection tracker (coming soon) is planned to hold them next to your inspections. For the full site-readiness list, see the pre-installation checklist, and for order timing, equipment lead times.

What about the mechanical room and imaging?

These are where scopes overlap most. The compressor and vacuum need a room, power and piping from the contractor, then the dealer sets and starts the units. Size them before the room is drawn; the free compressor & vacuum sizing calculator (coming soon) is planned for a first estimate you then confirm with your dealer. See chair utility requirements for the per-chair numbers.

Pano and CBCT add a fourth party, the radiation physicist. Dentsply Sirona says a shielding plan survey by a radiation physicist is mandatory for every 3D installation it does (Dentsply Sirona Site Survey). Before you buy, confirm the unit works with your imaging and practice software; the free device compatibility checker (coming soon) is planned for that. Details are in pano and CBCT site prep.

What should the contracts say?

Put a one-page responsibility matrix in both the construction contract and the equipment agreement. At minimum it should name, for each item, who specifies, who supplies, who installs, who inspects and who pays for rework:

  1. Floor boxes and wall stubs, by operatory
  2. Wall blocking (lights, monitors, pano, TVs)
  3. Compressor, vacuum and piping to the mechanical room
  4. Dedicated circuits for imaging, sterilizers and the rack
  5. Data drops and conduit at each chair
  6. Cabinetry installation
  7. Shielding design, installation and post-install survey
  8. Final connections, start-up and the equipment manuals handover

Which free tools help with this?

The credential ownership checklist (free tool, coming soon) is planned to list every login, license and account the practice should own, with a "password hostage" letter template.

How FloorStack helps

FloorStack is a dental build-out platform that keeps the dealer's specs, the contractor's rough-in and the IT plan on one floor plan. Use FloorStack Studio (live, free plan) to place every device and drop. The compressor & vacuum sizing calculator, permit & inspection tracker, network & IT plan generator and device compatibility checker are free tools coming soon. Go back to the Dental Equipment Planning hub. Also use the Credential ownership checklist (free tool, coming soon).

Free tools for this step

Frequently asked questions

Does the dental dealer install the plumbing for the chair?

Usually not. A-dec's guide has the contractor supply and install the shutoff valves, and says local rules may require licensed plumbers and electricians for utilities (A-dec). The dealer connects the chair to them.

Who provides the floor box and utility locations?

The dealer provides the manufacturer's templates and utility locations; the contractor builds to them. A-dec makes full-size templates available to authorized dealers for spotting products on the job site (A-dec 397 guide).

Can equipment be installed before the floors and paint are done?

Manufacturers say no. A-dec says construction, including finished floors, ceiling, plumbing, lighting and paint, should be complete before equipment installation (A-dec).

Who wires the pano or CBCT?

The electrician runs a dedicated circuit before install day. Dentsply Sirona calls for a 200–240 V, 20 A dedicated hardwired circuit for its pan/ceph/3D units (Dentsply Sirona). The dealer then installs the unit.

Who runs the network cable to the dental chair?

Normally the IT or low-voltage contractor, through conduit the GC installs. A-dec's chair guide calls for a 2" data conduit and recommends wired Ethernet (A-dec).

What happens if the chair changes after rough-in?

Expect relocated stubs, patching and re-inspection. Corporeal Visions estimates post-drywall change orders at 200–400% of the original-scope cost (Corporeal Visions). Lock equipment before drawings are final.

Sources

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