LVP Flooring Installation: What to Expect Start to Finish

This isn't a DIY installation tutorial. If you're hiring a professional to install luxury vinyl plank flooring — which we recommend for most homeowners — this is your guide to understanding what they should be doing, why each step matters, and what questions to ask along the way.

An informed homeowner gets a better installation. When you know what to expect, you can spot shortcuts, ask the right questions, and make decisions about transitions, direction, and layout that you'll live with for years.

Step 1: Subfloor Inspection and Preparation

This is where good installers earn their money. The subfloor is the foundation of your entire floor, and if it's not right, nothing installed on top of it will perform correctly.

What your installer should check:

Flatness. The subfloor should be flat within 3/16 inch over a 10-foot span. Not level — flat. There's a difference. A floor can slope gently across a room and still be fine for LVP installation, but high spots and low spots within a small area will cause problems. Your installer should use a long straightedge to check and mark any areas that need attention.

High spots get ground down. Low spots get filled with a floor leveling compound. This isn't optional prep work — it's essential. LVP is a floating floor, and if it's bridging gaps in the subfloor, those planks will flex under foot traffic. Over time, that flex weakens the click-lock connections and creates hollow-sounding spots.

Moisture. For concrete subfloors, a moisture test is critical. Your installer should use a calcium chloride test or relative humidity probe to measure moisture levels. Most LVP manufacturers set specific moisture limits in their installation guides — typically below 5 lbs per 1,000 sq ft (calcium chloride) or below 80% RH (in-situ probe). Exceeding these limits can void your warranty.

For wood subfloors, moisture is less of a concern but the installer should still check for soft spots, squeaks, and structural integrity. Loose or damaged subfloor panels should be secured or replaced before installation.

Cleanliness. The subfloor needs to be clean — free of dust, debris, old adhesive, paint drips, and anything else that could create an uneven surface or prevent the underlayment from lying flat. This sounds basic, but you'd be surprised how many installers skip a thorough cleaning.

Step 2: Acclimation

LVP is more dimensionally stable than hardwood, but it still responds to temperature. Most manufacturers recommend letting the flooring sit in the installation room for at least 48 hours at a temperature between 65-85°F.

This is especially important if the flooring was shipped during extreme weather — either very hot or very cold. Planks that are installed cold can expand as they warm up. Planks installed during a heat wave can contract in winter. The expansion and contraction is minimal compared to hardwood, but it's real, and it's why expansion gaps exist.

Your installer should know the manufacturer's specific acclimation requirements. If they wave this off as unnecessary for vinyl, they're not following best practices.

Step 3: Underlayment

This is where product knowledge matters. There are two scenarios:

Products with attached underlayment. Many premium LVP products, including COREtec, come with underlayment already bonded to the bottom of each plank — typically cork or high-density foam. If your product has attached underlayment, you should not add a separate underlayment pad on top of the subfloor. Doubling up creates too much cushion, which causes the click-lock joints to flex and eventually fail.

The one exception: if you're installing over a concrete slab, you may still need a separate vapor barrier (a thin 6-mil polyethylene sheet) even if the product has attached underlayment. Check the manufacturer's specs — some attached underlayments include a built-in vapor barrier, others don't.

Products without attached underlayment. If your LVP doesn't have attached underlayment, your installer will roll out a separate underlayment pad before laying the planks. This serves three purposes: minor sound dampening, cushion underfoot, and moisture protection. The underlayment should be appropriate for LVP — not the thick, cushy pad you'd use under carpet. Too much cushion is worse than none at all.

Step 4: Layout and Direction

Before the first plank goes down, your installer should plan the layout. This includes:

Plank direction. In most rooms, planks should run parallel to the longest wall or toward the main light source (windows). This creates a more spacious visual effect. But in hallways and long corridors, planks should always run lengthwise. Discuss this with your installer — it's a visual preference, and you should have input.

Starting wall. The installer should start along the straightest, most visible wall. The first row sets the line for the entire floor, so it needs to be perfectly straight. Most installers snap a chalk line rather than trusting the wall to be straight (walls often aren't).

Stagger pattern. Adjacent rows should have staggered end joints — typically offset by at least 6 inches, ideally more. A random stagger pattern looks the most natural. If your installer is creating a repeating "H" pattern (every other row lines up), that's a sign of careless work. Randomize the plank lengths in each row for a natural appearance.

Step 5: Installation — Click-Lock vs. Glue-Down

Most residential LVP uses a click-lock (floating) installation. Planks connect to each other via interlocking edges and float over the subfloor without being attached to it. This is faster, cleaner, and allows the floor to expand and contract as a unit.

Glue-down LVP is used in some commercial applications or when the manufacturer specifies it. Each plank is adhered directly to the subfloor with a specific adhesive. This creates a very stable, solid-feeling floor but it's permanent — you can't pull it up and reuse it.

If your installer recommends glue-down for a residential job, ask why. There may be a good reason (unusual subfloor conditions, specific manufacturer requirement), but in most cases click-lock is the standard.

Step 6: Expansion Gaps and Transitions

Expansion gaps. Your installer must leave a gap — typically 1/4 inch — between the flooring and every wall, cabinet, and fixed object. This gap allows the floor to expand and contract with temperature changes. It gets covered by baseboards or quarter-round trim, so you'll never see it. If your installer pushes planks tight against the wall, your floor will buckle when it expands.

Transition strips. Where your LVP meets a different flooring type (tile, carpet, hardwood), a transition strip bridges the gap. Good installers carry a variety of transition profiles — T-moldings, reducers, end caps — and choose the right one for each situation. Cheap or mismatched transitions are one of the most visible signs of a sloppy installation.

Having the Conversation

Print this article or bookmark it on your phone. When your installer comes for the estimate, walk through these steps with them. A good installer will appreciate that you've done your homework. A bad installer will get defensive or dismissive — and that tells you everything you need to know.

Browse our full luxury vinyl plank collection to find the right product, then find an installer who will do it justice.