Floor Layer Interview Questions UK: 8 Real Questions and What Interviewers Want

Applying for a Floor Layer job in the UK? Here is what you are likely to be asked. These questions come from our Floor Layer question bank of 12 questions, written for UK employers at mid-level level.

Eight Floor Layer interview questions, and what the interviewer is thinking

1. How do you test the moisture content of a concrete or sand-cement screed, and what readings would stop you laying a floor?

Why they ask: Moisture is the biggest cause of floor failures, so this is the first thing they ask.

2. What preparation do you carry out on a subfloor before laying a self-levelling compound?

Why they ask: Preparation makes or breaks a smooth floor and they test understanding of the process.

3. You arrive to lay a floor and the customer says the screed was poured only two weeks ago. What do you do?

Why they ask: Floor layers often face pressure to start before the base is ready.

4. What allowances do you make when installing floating wood or laminate flooring?

Why they ask: Movement allowance is a typical technical check for floor fitters.

5. Tell me about a time you had to fix a problem with a floor you had laid or inherited.

Why they ask: They want to see how you respond to defects and keep customers satisfied.

6. What do you need to consider when laying flooring over underfloor heating?

Why they ask: Underfloor heating is common and needs special care.

7. Halfway through a job, you find the subfloor is not level, with a dip of 8mm over two metres. What would you do?

Why they ask: They test judgement and practical correction.

8. What attracted you to floor laying, and what makes a good floor layer?

Why they ask: They want to see commitment and understanding of the skills involved.

A sample answer to question 1

How do you test the moisture content of a concrete or sand-cement screed, and what readings would stop you laying a floor?

I use a hygrometer test following BS 8203 and the relevant standard for the type of floor covering. I place a calibrated hygrometer in a sealed box or hood on a clean, exposed area of the screed, leave it for the recommended time, normally 72 hours, and take the relative humidity reading. For most resilient coverings and adhesives, including vinyl and LVT, the reading must be at or below 75 percent RH, and some manufacturers specify lower for particular adhesives. For timber flooring it is also normally 75 percent, but I check the manufacturer's guidance. If readings are higher, I would not lay the floor. I'd tell the supervisor or client, and consider options such as longer drying time, drying with dehumidifiers, or applying a surface damp-proof membrane approved for the product. I record the results and photos as evidence.

Common mistake to avoid: Relying on a pin meter alone; laying over damp screed

Want the rest?

Full model answers, key points and common mistakes for all 12 questions are on the Floor Layer interview questions page. The first five are free, no sign-up needed.