Glue-Down LVP Installation
Handis glue-down LVP installation bonds every luxury vinyl plank directly to the substrate with trowel-applied pressure-sensitive adhesive — the standard install for concrete slabs in basements, rooms with radiant-heat floor systems where the bond conducts heat better than a floating air-gap, and any open run over 1,200 square feet where a floating floor would need expansion T-molds breaking up the visual flow — flatness-checked to 1/8 inch over 6 feet, slab moisture-tested with a calibrated RH probe or calcium chloride test before the trowel goes down, 48 hours of in-room acclimation, the manufacturer-spec adhesive trowel notch sized to plank thickness, full-spread coverage with 100 percent transfer to the plank back, and final transitions at every doorway — from $4,500 on a 300 square foot zone up to $11,000 on a whole-floor slab install. Glue-down is the right install for the most demanding LVP scenarios. The bond is permanent, the floor sits dead flat, foot-fall noise is the lowest of any resilient install, the radiant heat transfers, and the floor handles the highest traffic loads — but the install itself is more technical and the slab work is non-negotiable.
Service
What Does a Glue-Down LVP Install Include?
A glue-down LVP install is the residential resilient-flooring service that bonds every luxury vinyl plank directly to the substrate with trowel-applied pressure-sensitive adhesive — covering substrate flatness check to 1/8 inch over 6 feet (tighter than the click-lock floating tolerance), calibrated slab moisture reading on every concrete-slab install (RH probe per ASTM F2170, target below 75 percent RH, or calcium chloride per ASTM F1869, target below 3 lb-MVER per 1000 sq ft per 24 hours, depending on the product spec), 48 hours of in-room acclimation, manufacturer-spec adhesive selection (most common is a pressure-sensitive PSA, sometimes a hard-set urethane on radiant systems), trowel notch sized to the plank thickness (1/16 inch x 1/16 inch x 1/16 inch is the typical PSA notch for 5 mm LVP), full-spread coverage with 100 percent transfer to the plank back, plank-roll with a 100-pound floor roller within the adhesive open time, perimeter caulk-fillable gap at fixed obstructions, and transition strips at every doorway. Handis covers glue-down LVP installs from $4,500 on a 300 square foot small zone.
Flatness Check to 1/8 Inch Over 6 Feet
Glue-down LVP tolerance is tighter than click-lock floating because the adhesive bond holds the plank flat against the substrate — any subfloor low spot transfers to the plank as a visible dip. Most products spec 1/8 inch over 6 feet (or 3/16 inch over 10 feet, depending on manufacturer). We check flatness with a 6-foot straightedge at multiple points across the room before any adhesive trowel comes out. Concrete high spots get ground with a diamond cup wheel; low spots get patched with self-leveling underlayment, dried, and re-checked.
Calibrated Slab Moisture Reading — Non-Negotiable
Concrete releases moisture vapor whether the slab looks dry or not. Glue-down LVP requires a calibrated reading before any adhesive goes down — RH probe per ASTM F2170 (a sealed-hole RH sensor that reads humidity inside the slab at 40 percent depth, target below 75 percent for most products) or calcium chloride per ASTM F1869 (a 24-hour weight-gain test that reads moisture vapor emission rate, target below 3 lb-MVER per 1000 square feet per 24 hours). We pull the reading, document it on the estimate, and route to moisture mitigation (a trowel-applied epoxy moisture-mitigation membrane, perimeter drain check, sump pump verification) if the reading is out before the install schedules.
Adhesive Selection and Trowel Notch Sized to the Plank
Pressure-sensitive adhesive (PSA) is the standard for most residential glue-down LVP — wet-set is the older spec and is being phased out by manufacturers because PSA tolerates a wider working window. The trowel notch size matters — 1/16 inch x 1/16 inch x 1/16 inch is the typical spec for 5 mm LVP planks, larger notches go on thicker products. Too small a notch leaves voids under the plank that the adhesive cannot fill; too large leaves excess adhesive that bleeds into the plank seams. We use the manufacturer-spec trowel notch for the product on the job, replaced when the teeth wear because a worn notch reads as the wrong notch.
Full-Spread Coverage, 100 Percent Transfer
Every plank gets seated within the adhesive open time (typically 30 to 45 minutes after trowel application depending on temperature and humidity), pressed onto the adhesive with hand pressure first, then rolled with a 100-pound floor roller in both directions to confirm 100 percent transfer of the adhesive to the plank back. Spot-spread coverage (the adhesive applied only at plank edges) is a banned shortcut on residential glue-down LVP — the plank fails at the unbonded center within 6 to 18 months under foot pressure. We trowel full-spread on every install.
100-Pound Floor Roller Within the Open Time
A 100-pound rolling-floor roller passed in both directions across every plank within the adhesive open time confirms the bond. Rolling concentrates the plank weight to bed the adhesive cleanly across the plank back. Skipping the rolling step (the second-most-common cause of glue-down failure after wrong-trowel-notch) leaves air voids under the plank that the adhesive cannot fill once it sets. We roll every install.
Perimeter Caulk-Fillable Gap and Transitions
Glue-down LVP does not need the 1/4 inch floating-floor expansion gap because every plank is bonded — but it does need a 1/8 inch caulk-fillable gap at fixed obstructions (cabinet kickplates, tile-to-vinyl transitions, plumbing penetrations) so seasonal slab movement does not stress the plank edge against a rigid object. Final transitions (T-mold, reducer, end-cap, stair nose) install at every doorway after the floor cures.
How a Glue-Down LVP Install Works
Eight sequential steps from the slab moisture reading through the final cure window — the actual sequence we follow on every glue-down LVP install.
Pull a Calibrated Slab Moisture Reading
Before any adhesive ships, the tech pulls an RH probe reading (ASTM F2170, target below 75 percent) or a calcium chloride reading (ASTM F1869, target below 3 lb-MVER) and documents it on the estimate. Out-of-spec slabs route to moisture mitigation first.
Flatness Check to 1/8 Inch Over 6 Feet
Substrate flatness checked with a 6-foot straightedge at multiple points. Concrete high spots ground with a diamond cup wheel; low spots patched with self-leveling underlayment, dried, and re-checked. Tighter tolerance than floating click-lock.
48-Hour Acclimation
Product delivered 48 hours ahead of the install crew, boxes stacked flat in the install room, at the home's normal temperature and humidity. Planks reach the actual conditions before they bond to the slab.
Pull Existing Flooring and Prep the Slab
Any existing flooring (carpet, vinyl, VCT, debonded mastic) pulled and disposed. Slab vacuumed and cleaned with the adhesive manufacturer's recommended prep solvent. Any high spots ground flush. Any low spots patched with self-leveling, fully cured before adhesive.
Layout-Plan and Snap Working Lines
Room measured, plank-width division calculated, cut widths at both walls balanced, end-joint stagger planned. Chalked working lines snapped on the slab to keep the first rows running straight across the open space.
Trowel Adhesive and Seat the Planks
Adhesive notch-troweled across a working zone (typically 4 to 6 plank widths ahead of the install crew). Within the open time (30 to 45 minutes), planks seated into the wet adhesive starting at the working line, hand-pressed first, then advanced across the zone.
Roll Every Plank With a 100-Pound Roller
100-pound rolling-floor roller passed in both directions across every newly-seated plank within the adhesive open time. Rolling concentrates the plank weight to bed the adhesive cleanly across the back. Skipping the roll is the most common cause of glue-down failure after wrong-trowel-notch.
24-Hour Foot Traffic Cure, 72-Hour Furniture Cure
Floor is walkable in soft-soled shoes 4 to 6 hours after the last plank seats. Normal foot traffic at 24 hours. Furniture moves back at 72 hours minimum so the adhesive reaches full bond before sustained load. Written cure-window note left at the home.
Glue-Down LVP Pricing
Final pricing depends on product, slab square footage, slab moisture mitigation needed, substrate flatness, and transition count. Slab moisture testing is included in every estimate. Request a free estimate for an accurate quote.
Tell us the slab, the room, and whether radiant heat runs underneath — we will pull the slab moisture reading on the first visit before quoting the install date.
Why Handis for Glue-Down LVP
Glue-down looks like the simpler install. No click-edge to seat, no underlayment to layout, no floating-floor expansion to plan for. The trade is that everything that goes wrong with glue-down LVP is permanent. A spot-spread adhesive job that leaves voids under the plank fails at the voids — and the only fix is to pry the plank off the slab with a putty knife, scrape the adhesive residue, and start over plank by plank. A glue-down install over an untested high-moisture slab debonds in two seasons and lifts the floor wall-to-wall. A wrong-trowel-notch install reads fine for the first month and shows adhesive bleed through the plank seams the second month. We pull the slab moisture reading on every job, use the manufacturer-spec trowel notch, full-spread coverage, and roll with a 100-pound roller within the open time. No shortcuts on the bond.
Slab moisture reading on every install — written on the estimate
Every glue-down LVP install over concrete gets a calibrated moisture reading before the adhesive ships. RH probe per ASTM F2170 (sealed-hole sensor reading inside the slab at 40 percent depth, target below 75 percent RH on most products) or calcium chloride per ASTM F1869 (24-hour weight-gain test, target below 3 lb-MVER per 1000 square feet per 24 hours). The reading lands on the estimate in writing. Out-of-spec slabs route to moisture mitigation (epoxy membrane, sump pump verification, perimeter drain inspection) before the install schedules. Skipping the test is how glue-down floors lift wall-to-wall in basements over two seasons.
Flatness to 1/8 inch over 6 feet
Glue-down tolerance is tighter than floating because the adhesive bond holds the plank flat against the substrate — any subfloor low spot transfers to the plank as a visible dip and any high spot concentrates the plank weight and breaks the bond. We check flatness with a 6-foot straightedge at multiple points before any trowel comes out. Concrete high spots grind with a diamond cup wheel; low spots patch with self-leveling, dried, and re-checked.
Manufacturer-spec adhesive and trowel notch
Pressure-sensitive adhesive (PSA) is the residential standard; hard-set urethane is the upgrade for radiant-heat systems (better heat conduction, more demanding work window). The trowel notch matches the plank thickness — 1/16 inch x 1/16 inch x 1/16 inch is the typical PSA notch for 5 mm LVP. Wrong notch reads as wrong coverage — too small leaves voids under the plank, too large leaves adhesive bleed at the seams. We use the manufacturer-spec notch for the product on the job, replaced when the teeth wear.
Full-spread coverage, 100 percent transfer
Every plank seats within the adhesive open time (30 to 45 minutes depending on temperature and humidity), gets pressed onto the adhesive by hand, then rolled with a 100-pound floor roller in both directions to confirm 100 percent transfer of the adhesive to the plank back. Spot-spread coverage (adhesive only at the plank edges) is a banned shortcut on residential glue-down LVP — the plank fails at the unbonded center within 6 to 18 months under foot pressure.
100-pound floor roller within the adhesive open time
Rolling concentrates the plank weight to bed the adhesive cleanly across the plank back. Skipping the roll is the second-most-common cause of glue-down failure after wrong trowel notch. We roll every install, in both directions, within the open time on every plank.
30-day workmanship guarantee
30-day workmanship guarantee — if a plank debonds, an adhesive bleed shows at a seam, a transition strip lifts, or the floor fails at a high spot within 30 days due to our install, we come back and fix it at no extra charge. Product defects route to the manufacturer warranty; we help you file. Adhesive bond failure caused by an out-of-spec slab moisture reading is on us if we did not document the reading on the estimate; if we documented an out-of-spec reading and you authorized the install anyway, the bond failure is documented on the estimate as a known risk.
Estimate
Tell us the room, the substrate (slab is the standard for glue-down — wood subfloors are usually click-lock candidates instead), the square footage, whether radiant heat runs underneath, and the timeline. We pull a calibrated slab moisture reading on the first visit and document it on the estimate before quoting the install date.
Customer Reviews
Glue-down LVP install reviews from real Handis customers.
Glue-down LVP in our Madrona basement over the concrete slab. Tech pulled an RH reading at 78 percent on the first visit and told us we needed sump pump verification and a perimeter drain inspection before the install. Came back two weeks later, slab read 71 percent, install was clean. Two seasons in, no adhesive failure, the floor reads like a real hardwood at standing height.
Glue-down LVP across our radiant-heat kitchen and breakfast nook in our Mercer Island remodel. We had been told a floating floor would insulate the heat — Handis confirmed glue-down conducts heat better and recommended the hard-set urethane upgrade for the radiant zone. Trowel-applied, every plank rolled with the 100-pound roller. Reads warm underfoot in February when the radiant runs.
Whole-basement glue-down LVP in our Ballard daylight basement — 950 square feet on the slab. Tech ran the moisture test, leveled two low spots, troweled the adhesive in working zones, rolled every plank. Install took three days including the floor roll on day two. Three years in, no debonding, no seam bleed, no lift at the perimeter.
Glue-down LVP across our open-plan main floor on a slab in Bellevue — 1,150 square feet. We chose glue-down over click-lock because the open run was too long for a floating floor without expansion T-molds. Tech laid the planks in two days, rolled every plank within the adhesive open time, and the floor reads as one continuous span with no breaks. Worth the extra cost.
Glue-down LVP in a commercial-grade traffic zone — our finished basement is rented out as a daylight studio apartment. The previous click-lock floor failed at the high-traffic path within 18 months. Handis pulled it, leveled the slab, and glued down a new LVP. Two years in, no movement, no seam separation, no wear-pattern in the traffic path.
Frequently Asked Questions
Common questions about glue-down LVP installation.