Step-by-Step: How To Replace Kitchen Cupboards

Yes, you can replace your kitchen cupboards yourself, making it a rewarding DIY project. This kitchen cabinet replacement guide walks you through every step, from taking out the old units to mounting new kitchen cabinets securely. Whether you are doing a full tear-out or just swapping doors, this guide offers clear instructions for a great result.

Preparing for Your Kitchen Cabinet Project

Replacing kitchen cupboards is a big job. Good planning makes the work much easier. Think about what you want to achieve. Are you replacing everything, or just giving the kitchen a new look by replacing kitchen cabinet doors?

Deciding on the Scope of Work

First, decide how much you want to change.

Full Replacement: Taking out everything and putting in new boxes. This is the biggest job.
Refacing Kitchen Cabinets: Keeping the existing boxes but putting on new doors, drawer fronts, and perhaps new visible side panels. This is faster and often cheaper than a full swap. This is known as refacing kitchen cabinets.
Simple Door and Drawer Swap: If the boxes are sound, you can just focus on the fronts and kitchen cabinet hardware installation.

Gathering Tools and Materials

Having the right tools ready saves time. For a full replacement, you will need more than if you are just changing hardware.

Tool Category	Essential Tools	Why You Need It
Safety Gear	Safety glasses, gloves	Protects eyes and hands.
Measuring & Marking	Tape measure, level (long and short), square, pencil	Ensures everything is straight and fits right.
Removal	Pry bar, utility knife, drill/driver, heavy-duty trash bags	For safely removing old kitchen cabinets.
Installation	Stud finder, clamps, shims, construction adhesive, long screws (3-inch)	For securing and leveling the new units.
Finishing	Caulking gun, painter’s tape, putty knife	For sealing gaps and touch-ups.

Make sure your new cabinets are ordered and delivered before you start taking the old ones out. Check all boxes for damage upon arrival.

Shutting Off Utilities

This is vital before starting any removing old kitchen cabinets process.

Water: Locate the shut-off valves under the sink. Turn them off. If you can’t find local shut-offs, turn off the main water supply to the house. Drain the remaining water from the lines.
Electricity: Find the breaker panel. Turn off the power to the kitchen circuits, especially if there are lights or outlets attached to the existing cabinets. Use a voltage tester to confirm the power is off.

Phase 1: Removing Old Kitchen Cabinets

This phase requires care. You do not want to damage walls or flooring during the removal. This section focuses on the removing old kitchen cabinets process.

Step 1: Clear Everything Out

Empty all contents from every cabinet and drawer. Remove shelves, shelf pins, and any loose hardware inside.

Step 2: Detach Doors and Drawers

It is easier to remove the boxes if the doors and drawer fronts are gone.

Use your drill/driver to unscrew the hinges holding the doors in place. Keep the screws and hinges together in labeled bags.
Pull out drawers. Often, you need to push a small plastic lever on the drawer slides to release the drawer box from the runners attached to the cabinet interior.

Step 3: Disconnect Countertops (If Applicable)

If the countertops are staying, skip this. If you are replacing them, you must remove them first.

Cut the sealant (caulk) around the edges where the countertop meets the backsplash or wall using a utility knife.
If the countertop is laminated, it is often screwed up into the bottom of the upper cabinets from inside the wall cabinet space. Remove these screws.
Have a helper. Countertops are heavy and awkward. Lift them carefully off the base cabinets and set them aside safely.

Step 4: Unfastening Upper Cabinets

Upper cabinets are usually attached to wall studs.

Look inside the cabinet near the top and bottom edges. You might see screws going directly into the wall studs. Remove these screws.
Sometimes, cabinets are attached only to each other. Once the screws connecting them to the wall are gone, they should move.
Have a helper hold the cabinet steady. Gently pull the top edge away from the wall. Be cautious, as old drywall can crumble.

Step 5: Unfastening Base Cabinets

Base cabinets hold the weight of the countertop, so they need careful release.

Check for screws attaching the cabinet to the wall studs, usually near the top rear rail. Remove them.
If cabinets are attached side-to-side (a very common method), check the face frames where they meet. Remove the screws joining them together.
Base cabinets rest on the floor, sometimes on small shims or blocks. Gently pry the cabinet away from the wall using a pry bar inserted under the bottom rail. Move slowly to avoid damaging the floor.
Once free, tilt the base unit forward and carry it out.

Step 6: Cleanup

Scrape off old glue or caulk residue from the walls and floor. Patch any large holes left by the screws in the drywall. Now the space is ready for the DIY kitchen cupboard installation.

Phase 2: Installing New Kitchen Cabinets

This is the core of the project: learning how to install kitchen cabinets correctly. Accuracy here affects every door, drawer, and countertop later on. We use shims and a level constantly.

Step 1: Layout and Marking the Walls

Before any drilling, find where the cabinets will sit.

Find the Studs: Use a stud finder to mark the location of every wall stud along the path of the base and upper cabinets. Draw light vertical lines along these studs.
Establish the Layout Line: Cabinets must be level. Use a long level to draw a straight, level line where the bottom of your upper cabinets will sit. If your walls are uneven, this line is crucial.
Determine Height: Standard height for base cabinets is 34.5 inches off the finished floor (before the countertop). Mark this line on the wall. For upper cabinets, the standard gap above the base cabinets (before the counter goes on) is 18 inches. Mark the bottom line for the uppers based on this 18-inch rule.

Step 2: Setting the First Base Cabinet

Always start with a corner cabinet or the cabinet that sits against a wall furthest from the main work area (like the sink).

Positioning: Place the first base cabinet into position, making sure its bottom edge sits right on your marked base line.
Shimming for Level: Place small wooden shims underneath the cabinet base. Use your level on the top edge of the cabinet (front-to-back and side-to-side). Adjust the shims until the cabinet is perfectly level both ways.
Attaching to the Wall: Once level, drive long screws (3-inch minimum) through the back rail of the cabinet and into the wall studs you marked earlier. Use at least two screws per stud bay. Do not overtighten; the shims are doing the leveling work.

Step 3: Installing Subsequent Base Cabinets

Cabinets are installed next to each other and then joined.

Spacing: Place the next cabinet next to the first one. Use temporary clamps or scrap wood pieces between the cabinets to hold them tight while you work.
Leveling the Second Unit: Shim this new cabinet until it is level both ways, making sure its top edge lines up perfectly with the first cabinet’s top edge.
Joining Cabinets: Once aligned and leveled, drill pilot holes through the face frames (the front wood frame) where the two cabinets meet, usually one near the top and one near the bottom. Drive screws in to tightly join the boxes together. This makes the run sturdy.

Repeat this process until all base cabinets are installed.

Step 4: Mounting New Kitchen Cabinets (Uppers)

This step absolutely requires a helper, as the units are awkward to hold while drilling overhead.

Starting Point: Start with the upper cabinet that connects to the wall studs first, often a corner unit.
Lifting and Shimmying: Lift the upper cabinet and rest its bottom edge on your layout line.
Leveling: Shim the back of the upper cabinet so it sits flush and level against the wall. Upper cabinets often need shimming side-to-side as well, especially if they are butting into a side wall.
Securing: Drive screws down through the top rail and up through the bottom rail of the cabinet directly into the wall studs. Secure them firmly.

Repeat the process for the next upper cabinet, clamping it tightly to the installed one before screwing the two boxes together, just as you did with the base units. The best way to install kitchen cupboards is to join them tightly as you go.

Phase 3: Fitting and Finishing Touches

With the boxes mounted, it is time for the details that make a kitchen look custom.

Step 5: Final Adjustments and Toe Kicks

Check Everything: Double-check every cabinet for levelness now that they are all fastened together. Make minor adjustments by tapping shims in or out carefully.
Installing Toe Kicks: Toe kicks are the recessed base areas often covered with a decorative board. Measure the distance from the floor to the bottom of the cabinet base rail. Cut your toe kick material to length and attach it using small angle brackets or construction adhesive, depending on your cabinet kit instructions.

Step 6: Kitchen Cabinet Hardware Installation

This refers to handles, pulls, and knobs. Accuracy is key here for a professional look.

Templates: Use a hardware template if provided with your new hardware. If not, create one using cardboard or stiff paper. This ensures every pull is at the exact same height on every drawer and door.
Marking: Mark the screw hole locations precisely on the doors and drawer fronts. Measure from the top/bottom edge and the side edge consistently.
Drilling: Drill the holes slowly and carefully from the outside surface. Use painter’s tape on the back side of the door or drawer front to prevent the wood veneer from tearing out when the drill bit punches through.
Attachment: Screw the handles and knobs onto the fronts from the inside.

Step 7: Installing Kitchen Cabinet Doors and Drawers

If you bought new boxes but are keeping some old doors, you may need to adjust the hinges. If you bought all new doors, follow the manufacturer’s kitchen cabinet fitting instructions for the hinges supplied.

Mount Hinges: Attach the hinge plates to the inside of the cabinet boxes according to the placement guide (usually two or three hinges per door).
Attach Doors: Clip or screw the doors onto the mounting plates.
Adjustment: Modern hinges have adjustment screws. Use these screws to move the door up/down, left/right, and in/out until all gaps are even and the doors align perfectly. This fine-tuning takes patience.
Drawer Slides: Install the drawer box runners inside the base cabinets. Assemble the drawer boxes and slide them onto the installed runners until they click into place.

Step 8: Final Finishing

Caulking: Once you install your new countertops (a separate, large job), you will need to caulk the seam where the backsplash meets the upper cabinets, and where the counter meets the wall. Use kitchen-grade silicone caulk.
Touch-Ups: Fill any accidental screw holes or deep scratches with wood filler that matches your cabinet color.

If you are only refacing kitchen cabinets, the process skips Phases 1 and 2 entirely. You would start by carefully removing old kitchen cabinet doors and drawer fronts, cleaning the existing boxes, applying new veneer or cladding to the sides, and then proceeding directly to Step 6 (Hardware Installation) and Step 7 (Installing New Doors).

Common Challenges and Tips for Success

Even with a detailed guide, things can go wrong. Here are common hurdles during a DIY kitchen cupboard installation.

Dealing with Uneven Walls

Most older homes have walls that are not perfectly straight or plumb.

The Rule: Always level and plumb the first cabinet installed perfectly.
Carry Errors Forward: Use that first perfect cabinet as the guide for every cabinet next to it. If cabinet A is level, cabinet B must be level relative to cabinet A.
Using Shims: Shims are your best friends. Never rely solely on screws to pull a crooked cabinet straight against a bowed wall; use shims to create a solid, flat bearing surface first.

Avoiding Damage During Removal

When removing old kitchen cabinets, the greatest risk is damaging the drywall behind them.

Use a utility knife to score the caulk line where the cabinet meets the wall before prying. This prevents the wallpaper or paint from tearing off the wall surface when the cabinet moves.

Ensuring Sturdy Upper Cabinet Mounting

Uppers are attached high up, and they must not fall.

Always locate and attach to at least one wall stud per cabinet, even if the instructions suggest only attaching them to each other. Screws driven into drywall alone will not hold the weight of future dishes.

Achieving Perfect Door Alignment

New doors seldom line up perfectly right away.

Go Slow with Adjustments: Hinge adjustments are sensitive. Move one screw only a quarter turn at a time, then check the alignment. It is a process of small nudges.

Alignment Issue	Which Hinge Screw to Turn	Effect
Door is too high or too low	The screw fixing the mounting plate to the cabinet box (usually the backmost screw).	Moves door vertically.
Door is too far left or right	The screw that secures the door cup to the mounting plate (often the center screw).	Moves door horizontally.
Door sits too far in or out	The screw furthest from the cabinet face frame (the adjustment screw closest to the cabinet opening).	Moves door in and out (depth).

Frequently Asked Questions (FAQ)

Q: How much does it cost to replace kitchen cabinets versus refacing?

A: Full replacement is significantly more expensive. A full replacement involves purchasing new cabinet boxes, which is the primary cost driver. Refacing only requires the cost of new doors, drawer fronts, and perhaps new end panels, which can save 40% to 60% compared to a full swap.

Q: Can I install my new cabinets without removing the old countertops?

A: It is extremely difficult, especially for base cabinets. The old countertop acts as an obstacle, making it hard to get the level and the shims underneath the new base cabinets correctly. For best results in a full swap, remove the countertops first.

Q: What is the standard height for wall cabinets above the counter?

A: The standard gap between the countertop surface and the bottom of the upper cabinets is 18 inches. This allows enough clearance for small appliances and comfortable working space.

Q: Do I need to hire a plumber and electrician for cabinet replacement?

A: If you are simply swapping boxes and the plumbing/electrical hookups (like the sink drain or garbage disposal) are easily accessible and don’t need moving, you might manage the shut-off and reconnection yourself. However, if you relocate the sink or add new lighting, professional help is strongly recommended for safety and code compliance.

Q: How long does it take to install kitchen cabinets for an average kitchen?

A: For an experienced DIYer, installing all the boxes (base and upper) for an average 10×10 kitchen usually takes 1 to 2 full days. Adding the time for door/drawer fitting, hinge adjustments, and kitchen cabinet hardware installation can extend the whole process to 3 or 4 days, depending on your skill level with fine adjustments.