Modular Kitchen Installation Checklist: Steps and Verification Points

Before Installation: Site Readiness and Measurements

Before the installers arrive, confirm that the site is ready. The floor should be level, and the walls where cabinets will sit should be plumb and square. Use a spirit level to check the floor across the area; if there is more than a 2–3 mm deviation over a meter, note it for the installation team, as they may need to use packing shims or adjustable legs.

Cross-check all modular kitchen measurements against the approved layout plan. Measure the width, depth, and height of the space at multiple points, not just one spot. Verify that the plumbing and electrical points align with the planned positions for the sink, hob, and appliances. Any mismatch now is easier to fix than after installation, so raise discrepancies with your contractor before work begins.

Ensure the room is cleared of debris and old fittings, and that there is a clear path for moving cabinet boxes and countertop slabs. Confirm that the delivery includes all components listed in your order: base units, wall units, shutters, hardware, and accessories. Check for transit damage on the boxes before signing the delivery note, as damaged items should be reported immediately.

Step-by-Step Installation Sequence: What Happens When

A typical modular kitchen installation follows a set order: first, the base units are assembled and leveled, then the wall units are hung, followed by the countertop and sink, and finally the appliances and accessories. The base units go in first because they set the reference for the countertop height and the alignment of the entire run. Installers will use a laser level to mark the wall for the wall units, ensuring they align with the base units and the gaps are uniform.

During base unit assembly, check that the adjustable legs are set to the correct height and that the units are braced together with the provided connectors. The plinth (the skirting board at the bottom) is usually fitted last, but the legs should be adjusted for level before the units are joined. Wall units are hung on a concealed rail or individual brackets, and the installer must verify that they are level both horizontally and vertically, and that the doors align without gaps.

The countertop, whether in a single piece or with a joint, is placed over the base units. The sink cutout is made before fitting, and the installer should seal the edges with silicone to prevent water ingress. The hob cutout is also prepared, and the appliance is lowered into place. After the top is secured, the back panel is attached, and the chimney or range hood ducting is connected. Each step should be checked off as it is completed, and the installer should explain the sequence so you know what to expect.

Verifying Cabinet Alignment, Doors, and Hardware

After the units are fixed, inspect the alignment of all cabinet doors. They should be level with each other, with even gaps (typically 2–3 mm) between doors and between doors and the frame. Open and close each door to check that it does not rub against adjacent doors or the carcass. If a door sags, the installer should adjust the hinges—most modern hinges have screws for vertical, horizontal, and depth adjustment.

Check the drawer operation. Each drawer should slide in and out smoothly without sticking, and the soft-close mechanism should engage gently without slamming. Verify that the drawer fronts are aligned with the door lines and that the handles or pulls are fixed tightly. Also, test the interior fittings: pull-out baskets, trays, and partition systems should move freely and click into place.

Inspect the cabinet carcass joints for gaps. The sides, back, and shelves should fit snugly, and the edge banding should be intact without peeling. If any panel is scratched or chipped, note it for replacement under warranty. The installer should also confirm that all cam locks and dowels are tightened, as loose joints can cause creaking and reduce the lifespan of the units.

Checking Plumbing, Electrical, and Gas Connections

The sink and dishwasher connections are critical. Turn on the water supply and check for leaks at every joint—under the sink, at the tap, and along the flexible hoses. Look for drips or dampness, and ensure the drain pipe has the correct fall so water flows out without pooling. If the dishwasher is integrated, run a short cycle while checking for leaks at the connection point.

Test all electrical points that serve the modular kitchen. The oven, hob, and chimney should be connected to the correct circuits, and the circuit breakers should be labeled clearly. Use a tester to verify that the outlets are live and properly earthed. If a gas hob is installed, check that the flexible gas pipe is not kinked, the isolation valve is accessible, and the connections are sealed with approved compound. A soap-and-water test on the gas joints will reveal bubbles if there is a leak—never use a naked flame.

Ensure that the exhaust duct for the chimney is properly connected and sealed to the outside or to a recirculation filter, depending on the type. The blower should pull air effectively, and the duct should not have sharp bends that reduce airflow. For a gas hob, the room should have adequate ventilation as per local norms. If you are not confident about any of these checks, request the installer to demonstrate the connections and ask for a written sign-off.

Final Walkthrough, Warranty, and Maintenance Notes

Once the installation is complete, do a final walkthrough with the installer. Clean the surfaces to remove dust and adhesive residue, but avoid harsh chemicals that could damage the finish. Operate every drawer, door, and shelf one last time. Check that the countertop seam is smooth and that the silicone sealant around the sink and hob is continuous and neat. Note any minor scratches or chips that occurred during installation and confirm the replacement plan.

Collect all documents: the warranty card, installation manual, and receipts. Verify that the warranty covers parts and labor for the stated period, and note what is excluded—for example, damage from water ingress or improper use. Ask the installer to show you how to adjust hinges and soft-close mechanisms, as this will save you a service call later. Also, ask for care instructions specific to the material of your shutters and countertop.

Finally, test the kitchen in daily use for the first few days. Run the dishwasher, use the hob, and open the cabinets to check for any unusual sounds or movement. If you notice a sagging door or a slow drawer, report it under warranty immediately. Keep a copy of the checklist you have used, as it will help you track any follow-up work. A well-verified installation will serve you for years, so do not rush the final checks.