Replace a Bathroom Vanity and Faucet

A. Finished Project Specification

Deliverable: one replacement bathroom vanity, top, sink, faucet, supply connections, and drain assembly, installed in the same approved location as the removed vanity, level and plumb, anchored to verified backing, with every pressurized and drain connection tested and free of leakage.

B. Component Schedule

Component	Quantity	Material	Finished Size	Preparation
Vanity cabinet	1	Per selected product	Matches existing opening width, depth, and height per specification sheet	Verified compatible with rough-in before demolition
Vanity top with sink	1	Per selected product	Matches cabinet dimensions and faucet hole spacing	Dry-fit before permanent installation
Faucet assembly	1	Per selected product	Matches top faucet-hole spacing	Assembled per manufacturer instructions before setting sink where practical
Drain assembly (pop-up or strainer, tailpiece, P-trap)	1 set	Per selected product	Matches drain rough-in	Dry-fit before final tightening
Supply connectors	2	Manufacturer-specified flexible or rigid type	Length matched to shutoff-to-faucet distance	New connectors installed; do not reuse old connectors
Backing (if required)	As required	Per approved backing detail	Sized to cabinet cleat or fastener pattern	Installed only where verified framing is insufficient
Shims	As required	Durable non-compressible material	Cut to fit gap between cabinet base and floor	Installed at load-bearing points only

C. Material Takeoff

• Cabinet fasteners: quantity and type specified by the cabinet manufacturer for anchoring to wall backing; do not substitute drywall screws alone into unbacked wallboard.
• Sealant: one tube of the manufacturer-specified type for the top-to-wall and top-to-backsplash joints, applied only after leak testing.
• Supply connectors: two new connectors sized for the verified shutoff-to-faucet distance; do not reuse old connectors.
• Waste allowance: one spare supply connector and one spare drain washer set in case a component is damaged during installation.
• Specialty tops: stone, solid-surface, glass, or integral tops requiring fabricator cutting or support are referred to the qualified fabricator identified in Section D and are not included in this takeoff.

D. Fastener and Hardware Schedule

Joint	Fastener/Hardware	Size	Head/Drive	Qty per Joint	Direction	Pilot Hole	Seating Condition
Cabinet-to-wall backing	Manufacturer-specified cabinet screw	Per manufacturer instructions	Phillips or square drive	Per manufacturer instructions, minimum 2 per side into verified backing	Horizontal, through cabinet rail into backing	Yes, sized to fastener per manufacturer instructions	Snug against rail without crushing the cabinet back panel
Top-to-cabinet	Specified clips, adhesive, or mechanical fastener per top manufacturer	Per manufacturer instructions	Per manufacturer instructions	Per manufacturer instructions	Per manufacturer instructions	Only where specified	Top fully supported and level with no rock
Supply connector to shutoff and faucet	Manufacturer-supplied compression or coupling nut	Per fitting size (commonly 3/8 in. or 1/2 in.)	Hand-tightened, then wrench snug	1 per connection	Threaded, hand-started before wrench	Not applicable	Snug plus manufacturer-specified turn; no drip under test pressure
Drain tailpiece to trap	Slip-joint nut with washer	Per drain size (commonly 1-1/4 in. or 1-1/2 in.)	Hand-tightened, then wrench snug	1 per joint	Threaded, washer beveled per manufacturer orientation	Not applicable	Snug without cracking plastic nut; no drip under fill-and-drain test

E. Reference Conventions (Project-Specific)

Reference face of the cabinet is the finished front face containing the doors and drawers. Reference line is the level line established on the wall in Section G before the cabinet is set. Top termination edge is the exposed front edge of the vanity top. Hot supply is always identified and connected to the left-hand valve unless the existing rough-in is confirmed otherwise; verify and record the actual configuration before connecting.

F. Acceptance Standards

Check	Standard
Cabinet level and plumb	Level side-to-side and front-to-back within the level's readable tolerance; plumb at both front corners
Cabinet anchorage	Fastened to verified backing per the fastener schedule; does not shift when firmly pushed at any corner
Top support and level	Top fully supported with no rock or gap at the cabinet rail; level matching the cabinet
Supply connections	No drip or seep at any connector under full water pressure during a 10-minute observation
Drain connections	No drip or seep at any joint during and after the fill-and-drain test
Faucet and stopper operation	Full temperature range and flow achieved; stopper seals and releases fully
Door and drawer operation	Full range of motion without binding, rubbing, or contact with plumbing

G. Preparation and Compatibility Review (Steps 1–4)

1. Review vanity dimensions, top configuration, faucet holes, sink, drain location, supply locations, wall backing, floor condition, door swing, clearances, ventilation, electrical proximity, and permit requirements. Record every dimension and location on the Rough-In and Compatibility Record before ordering or unpacking the new components.
2. Confirm the existing plumbing arrangement is serviceable and the project does not require unapproved drain, vent, supply, electrical, or structural relocation. Stop and refer if the rough-in is damaged, corroded, or does not match the approved scope.
3. Verify the new vanity, top, sink, faucet, drain, shutoffs, supply connectors, and hardware are compatible before demolition. Dry-check the new top's faucet-hole spacing and the new cabinet's width against the existing opening before removing the old vanity.
4. Photograph plumbing, attachment, wall, floor, backsplash, and finish conditions. Photograph the existing supply-valve type, drain trap arrangement, and cabinet attachment points before any disconnection.

H. Removal (Steps 5–13) — Competency RR-061

1. Clear the cabinet and protect the room, doorway, floor, toilet, tub, mirror, and adjacent finishes. Remove stored contents and install protective sheeting along the access route.
2. Shut off water using verified serviceable valves and test that flow has stopped. Close both shutoffs, then open the faucet and confirm no flow before proceeding.
3. Provide a controlled water-capture and spill-response setup. Position a bucket and towels beneath the connections to be disconnected.
4. Disconnect supply and drain components using the approved procedure. Disconnect the supply connectors at the shutoff and faucet, then disconnect the trap and tailpiece, capturing residual water in the bucket.
5. Cap or protect open piping as required and prevent sewer gas or debris entry. Plug or cover the open drain stub-out with an approved temporary cap.
6. Remove doors, drawers, shelves, top, sink, and cabinet in a controlled sequence. Remove doors and drawers first, then release the top, then the cabinet.
7. Support heavy or brittle tops and use team lifting or mechanical assistance. Do not set the old top down on an unprotected edge or corner.
8. Remove fasteners without damaging concealed plumbing, wiring, wall backing, or floor. Back out cabinet-anchoring screws fully before pulling the cabinet away from the wall.
9. Inspect wall, floor, plumbing, shutoffs, drain, moisture, mold, rot, and previous repairs. Photograph and record every exposed condition before continuing.

I. Concealed-Condition Acceptance and Backing (Steps 14–16) — Competency RR-062

1. Stop for leaking or damaged piping, unsound floor, extensive moisture damage, unsafe wiring, or incompatible rough-in. Do not proceed to installation until every stop-work condition is resolved or referred.
2. Repair accepted wall and floor surfaces that will remain accessible or visible. Use the Chapter 5 drywall-repair procedure for any accepted wall damage within the cabinet footprint.
3. Locate framing or install approved backing through the authorized method. Mark verified stud locations on the reference level line, or install the specified backing member where the cabinet's fastener pattern does not align with framing.

J. Setting and Anchoring the Cabinet (Steps 17–20) — Competency RR-063

1. Dry-fit the vanity and verify level, plumb, wall contact, door and drawer operation, plumbing clearance, and finished position. Set the cabinet in place without fasteners and confirm it clears the drain and supply locations.
2. Make only approved cabinet cutouts with protected edges and adequate clearance from plumbing. Cut any required access opening in the cabinet back only at the manufacturer-marked location.
3. Shim the vanity with durable compatible shims and fasten it to verified structural backing. Insert shims at load-bearing points until the cabinet reads level against the reference line, then drive the fasteners specified in Section D.
4. Do not rely on the countertop, plumbing, caulk, or floor friction to secure the cabinet. Confirm the cabinet does not shift when firmly pushed at any corner before proceeding to the top.

K. Top, Faucet, and Drain Installation (Steps 21–25) — Competencies RR-064 and RR-065

1. Assemble and install the faucet, drain body, sink, and accessories according to manufacturer instructions where not factory installed. Complete this assembly on the top before setting it on the cabinet where practical.
2. Set and secure the vanity top using the specified support, adhesive, clips, or mechanical method. Confirm full contact with the cabinet rail with no rock before final fastening.
3. Maintain required wall, backsplash, and movement joints. Do not force the top tight against an out-of-square wall; shim or scribe per the manufacturer's fit instructions.
4. Connect supply lines without twisting, kinking, cross-threading, overtightening, or placing strain on valves. Hand-thread each connector before final wrench tightening.
5. Connect the drain using the approved trap and fitting arrangement while maintaining access and alignment. Confirm the trap arm slopes toward the drain and the cleanout, if present, remains accessible.

L. Testing and Finish (Steps 26–32) — Competency RR-066

1. Restore water slowly and inspect every pressurized connection. Open each shutoff a quarter turn at a time and check both connectors before opening fully.
2. Fill and drain the sink repeatedly while inspecting the drain body, overflow where present, trap, joints, shutoffs, and cabinet base. Perform the fill-and-drain test at least three times, checking for leakage after each cycle.
3. Operate faucet handles, stopper, doors, and drawers through their full range. Confirm full temperature range, full flow, and complete stopper seal and release.
4. Install approved sealant only after fit and leak testing are accepted. Apply the specified sealant bead at the top-to-wall and top-to-backsplash joints only after Steps 27–29 are complete.
5. Complete required plumbing inspection. Contact the local building department or qualified inspector if the project scope requires one, and record the result.
6. Inspect cabinet anchorage, level, top support, clearances, finish, faucet operation, drainage, leakage, and access. Complete the Acceptance Standards table in Section F for every item.
7. Document products, connections, tests, inspections, and owner care instructions. Record the finished installation on the project specification sheet and provide the owner with product data and a copy of the completed inspection record.