How to Prepare Your Kitchen for Countertop Installation
Prepare your kitchen 24 hours before installation day by clearing all countertop surfaces, emptying under-sink and adjacent cabinets, ensuring your sink and cooktop are disconnected (or confirming your installer handles this), protecting flooring along the crew’s path, and setting up a temporary kitchen station. The installation crew needs a clear, unobstructed workspace — the more prepared you are, the faster they finish.
Installation day goes one of two ways. Either the crew walks in, everything’s clear, and they’re placing stone within 20 minutes. Or they arrive to a kitchen full of appliances, a sink that’s still connected, and cabinets packed with cleaning products — and the first hour is spent moving your stuff instead of installing your countertop. Don’t be the second scenario. This checklist keeps you in the first one. For the full installation process from start to finish, see our complete guide to countertop installation in Denver.
What Should You Clear and Move Before Installation Day?
Clear everything off every countertop surface — small appliances, knife blocks, fruit bowls, canisters, soap dispensers, dish racks, decorative items, everything. Then empty the cabinets directly below countertop edges and under the sink. Finally, move freestanding items (trash cans, step stools, pet bowls) away from the crew’s work area and path.
The crew needs to access every inch of your countertop perimeter and the cabinets supporting it. Anything left on or near the surfaces slows them down and creates risk — a forgotten blender that gets bumped, cleaning products that spill when the cabinet is jostled during demolition, a pet bowl that gets stepped on.
Countertop Surfaces
Clear every surface completely. Not “mostly cleared with a few things pushed to the corner.” Completely empty. The crew may need to set tools, levels, and shims on the cabinet tops during installation. Your toaster can spend one day on the dining room table.
Under-Sink Cabinet
Everything comes out. Cleaning supplies, trash bags, sponges, fire extinguisher — all of it. The crew needs access to the plumbing connections below, and during demolition, debris can fall into an open cabinet. If your countertop installer handles plumbing disconnect, they’ll need clear access to supply valves and drain connections.
Adjacent and Corner Cabinets
Cabinets directly below the countertop edge — particularly corner cabinets and those near seam locations — should be emptied. Demolition vibration and the weight of new stone can shift cabinet contents. Fragile items like glassware and ceramics should be moved to a safe location.
Freestanding Items
Move everything off the floor in the work area and along the path the crew will carry countertop pieces. Stone slabs are heavy and require two-person carries with limited visibility. A clear path from the front door (or garage entry) through the house to the kitchen is essential.
What Plumbing and Appliance Steps Need to Happen Before the Crew Arrives?
Confirm with your installer whether they handle plumbing disconnection or if you need to arrange it separately. If you’re responsible, turn off water supply valves under the sink, disconnect supply lines, and cap or bucket the drain. Pull out the dishwasher if it’s attached to the countertop, and disconnect any cooktop that sits on or attaches to the countertop surface.
Plumbing is the most common source of confusion on installation day. Some countertop installation companies include plumbing disconnect and reconnect in their standard scope. Others expect you to hire a separate plumber. Confirm this before installation day — not the morning of.
If Your Installer Handles Plumbing (GMD Standard)
Granite & Marble Designs includes plumbing disconnection and reconnection in their standard kitchen installation scope. If this is your setup, you don’t need to do anything with the plumbing — the crew handles it. Just make sure the under-sink cabinet is empty so they have clear access.
If You’re Handling Plumbing Separately
Turn off the hot and cold supply valves under the sink. Disconnect the supply lines from the faucet. Place a bucket under the drain P-trap and disconnect it. Cap or plug any open pipes. If you’re not comfortable doing this yourself, schedule a plumber for the morning before your installation appointment.
Cooktop and Range
If you have a drop-in cooktop that sits in the countertop, it needs to be disconnected before the crew arrives. Gas cooktops must be disconnected by a licensed professional — this is non-negotiable for safety. Electric cooktops can be unplugged if accessible. A freestanding range that sits between cabinets usually doesn’t need to be moved unless the countertop wraps behind it.
Dishwasher
Most dishwashers are attached to the underside of the countertop with mounting brackets. The crew typically handles this during demolition. However, if your dishwasher has a custom panel that attaches to the countertop edge, note this during your consultation so the crew is prepared.
| Appliance / Fixture | Who Handles It | What to Do Before Install Day |
| Sink + faucet | GMD crew (standard scope) | Empty under-sink cabinet |
| Water supply lines | GMD crew (standard scope) | Ensure valve access is clear |
| Drain plumbing | GMD crew (standard scope) | Remove under-sink storage |
| Gas cooktop | Licensed professional only | Schedule disconnect before install day |
| Electric cooktop | Homeowner or electrician | Unplug if accessible |
| Dishwasher | GMD crew (during demo) | Note custom panels at consultation |
| Garbage disposal | GMD crew | Clear under-sink access |
How Do You Protect Your Home During Countertop Installation?
Protect hardwood, tile, and luxury vinyl flooring along the crew’s carry path with contractor paper or moving blankets. Close doors to rooms you want to keep dust-free — countertop demolition generates dust even with careful work. Move fragile items off walls adjacent to the kitchen, as vibration from demolition can rattle wall-mounted items.
The installation crew takes precautions — they’re professionals who’ve done this thousands of times. But stone countertops are heavy, demolition creates debris, and the carry path from the front door to the kitchen crosses your living space. A few minutes of preparation protects your home.
Floor Protection
The crew will lay protective material along their carry path, but you can get ahead of it by taping down contractor paper or laying moving blankets on hardwood, tile, or vinyl in the kitchen and hallways. Pay special attention to transition strips and doorway thresholds where heavy foot traffic concentrates.
Dust Management
Old countertop demolition generates dust — especially if the existing surface is laminate or tile with grout. Close doors to bedrooms, home offices, and any room with sensitive electronics. If you have a central HVAC system, consider switching it to “fan off” during the demolition phase to prevent dust from circulating through ductwork — a practice aligned with EPA indoor air quality guidelines.
Wall Protection
Heavy countertop pieces carried through narrow hallways can bump walls. The crew uses padded carriers and corner protectors, but if you have framed photos, mirrors, or fragile wall-mounted items along the carry path, take them down temporarily.
Pets and Children
Keep pets and young children in a separate room with the door closed during installation. The work area involves heavy lifting, sharp edges, power tools, and chemical adhesives — none of which are compatible with curious pets or kids underfoot.
Conclusion
Kitchen prep for countertop installation takes about an hour of focused effort the day before — clearing surfaces, emptying cabinets, confirming plumbing arrangements, protecting floors, and setting up a temporary kitchen station. That one hour of preparation gives the installation crew a clear workspace and eliminates the delays and risks that come from a kitchen that isn’t ready.
GMD provides a printed preparation guide before every installation appointment with specific instructions for your project scope. Need help planning? Contact Granite & Marble Designs to schedule your consultation and get a personalized prep checklist along with your project timeline.
Frequently Asked Questions
How far in advance should I prepare my kitchen?
Complete all preparation the day before installation. This gives you time to address anything you forgot without rushing the morning of your appointment.
Do I need to disconnect my garbage disposal?
No. The installation crew handles garbage disposal disconnection and reconnection as part of the standard kitchen installation scope at GMD.
Should I remove everything from upper cabinets too?
Upper cabinets are typically fine. Focus on clearing lower cabinets directly below the countertop — especially under the sink, at corners, and near seam locations.
What if I have a kitchen island with no plumbing?
An island without a sink or cooktop is the simplest installation scenario. Just clear the island surface and empty any cabinets or drawers that are directly below the countertop edge.
Can I stay home during the installation?
Yes. Most homeowners stay home during installation. You’ll need to be available for the final walkthrough when the crew finishes, and being accessible for any questions during the install is helpful.
What should my temporary kitchen include?
At minimum: a microwave, coffee maker, electric kettle, paper plates and cups, basic utensils, and a cooler for refrigerated items you’ll need during the 2-4 hour installation window.
Do I need to move my refrigerator?
Only if the countertop wraps directly adjacent to the refrigerator location. In most kitchens, the fridge stays put. Your installer will advise during the template appointment if the fridge needs to be pulled out.
What happens if my kitchen isn’t prepared when the crew arrives?
The crew will help clear essential items, but it adds time to the installation appointment and delays placing the actual countertops. In busy seasons, the crew may need to leave for their next scheduled job regardless.
Should I protect my backsplash during installation?
If you’re keeping your existing backsplash, discuss this with your installer during consultation. The bottom row of tile backsplash often comes loose during countertop demolition — this is a known risk, not a crew error.
Can I do any prep during the fabrication phase?
Absolutely. Use the 5-10 day fabrication window to gradually move items off counters, pack up under-sink storage, arrange temporary kitchen supplies, and confirm plumbing arrangements.