How to install laminate on an existing floor?
Yes, it’s entirely possible to install laminate over an existing floor. The exact installation method depends on the type of floor you’re installing your laminate on. Follow the steps below to ensure a smooth installation process.
On a damp-porous floor covering
First, remove any damp-porous floor covering (i.e. carpet, needle felt, etc.) before installing Quick-Step Laminate.
On a damp-sealed floor covering
A damp-sealed floor covering (non-foamed/non-cushioned vinyl, linoleum, etc.) doesn’t have to be removed, but a Quick-Step levelling underlay should be installed on top of the existing floor covering. Of course, the flatness rules explained in our installation instructions must be followed correctly.
On a wooden subfloor
If you have a wooden subfloor, you must remove every existing floor covering first.
Important:
- There should be no signs of mould and/or insect infestation.
- Make sure the subfloor is level. Any unevenness greater than 4 mm over a length of 2 metres must be smoothed out. The same applies to any unevenness of more than 1 mm over a length of 20 cm. This rule does not apply to national regulations on levelling.
- Nail down any loose parts.
- Always use a Quick-Step underlay (including a damp-proof membrane on a mineral subfloor).
If you have an uneven timber floor, you must install the Quick-Step underlay Thermolevel. There must also be sufficient ventilation in the crawl space underneath the timber floor. The moisture content of the wood must not exceed 10%. Install the new floor at ninety degrees to the existing subfloor.
For other subfloors, check the matrix.
For more detailed instructions, contact our technical services department.
