When should flooring be installed in a new-build home?

In a new-build, flooring is best fitted once the home is complete, clean and the wet trades have finished, and any concrete or screed floor is dry enough for the product chosen. Upstairs carpet can often go in soon after completion. Hard floors on a ground-floor screed may need a moisture test first, because new screed can take months to dry.

Timing is one of the trickiest parts of flooring a new home. Getting it wrong rarely shows on day one; problems from residual moisture tend to appear weeks or months later.

Does it depend on how the home is being built?

Yes. There are two quite different situations:

• Buying from a developer. The home is handed over finished, so the question is less about the build sequence and more about access and drying. Access before legal completion is at the developer’s discretion, so a measure often happens at a pre-completion visit if one is allowed, or soon after you get the keys.
• Self-build, extension or renovation. You control the sequence, so flooring should follow the build stages below.

What is the right sequence on a self-build or extension?

1. Watertight and plastered. The shell is closed and plaster is drying.
2. Second fix joinery. Doors and door frames are in. Skirting can go either before or after the floor; fitting hard floors before skirting can give a neater finish without scotia (see skirting, scotia and laminate).
3. Wet trades finished. Plastering, tiling and most decorating are done, so nothing drips onto the new floor. Many people leave the final coat of paint on skirting until after fitting.
4. Floors dry enough. Screeds have been tested and pass the flooring manufacturer’s requirement.
5. Clean and heated. The home is clean and at normal living temperature so the flooring can acclimatise.

Measuring can happen earlier, once walls are plastered and dimensions won’t change, but fitting should wait until the home is genuinely ready.

How long does a new screed take to dry?

Longer than most people expect. A widely used rule of thumb for traditional sand and cement screed is around one day per millimetre of thickness for the first 40 mm, in good drying conditions, and slower beyond that (often quoted as two days per millimetre). On that basis a 50 mm screed needs roughly two months and a 75 mm screed well over three, and cold, damp or poorly ventilated conditions slow it further. Anhydrite screeds, often used with underfloor heating, follow different drying guidance.

Rules of thumb are only a guide. The reliable answer comes from a moisture test. For resilient floors such as LVT and vinyl, UK practice under BS 8203 is usually a hygrometer test, with many manufacturers asking for 75% relative humidity or lower. Laminate and wood manufacturers set their own limits, sometimes using a different test. See LVT subfloor preparation for what happens if a floor is too damp.

Which floors are most affected by new-build moisture?

• Glue-down LVT and sheet vinyl are the most sensitive, because moisture can affect the adhesive bond. A surface damp-proof membrane is sometimes used where the screed isn’t dry enough.
• Laminate and click LVT float on an underlay, and over concrete they are normally laid on a moisture barrier, which manages normal residual moisture. A very damp screed still needs time.
• Carpet is generally the most tolerant, but very damp screed can still affect underlay and the gripper fixing.

Upper floors in many new homes are timber joists with a chipboard deck rather than concrete, so carpet upstairs is usually less affected by drying times.

Planning around completion and move-in

Many new-build owners plan a whole-house scheme, often carpet upstairs and LVT or laminate downstairs. A few things help:

• Keep dates flexible. Completion dates move, so plan fitting for a short window after completion rather than a fixed day.
• Get snagging done first where you can, especially anything involving plaster, doors or plumbing.
• Think about doors. New floors can raise the level, so internal doors may need trimming.
• Expect some drying out. New homes dry out over the first year or so, and minor shrinkage cracks in plaster are common. Heating the home gradually rather than turning everything up at once is generally advised.

If you’re deciding between a developer’s flooring package and arranging it yourself, see developer flooring vs arranging independently. For homes in and around Burton-on-Trent, our article on planning flooring for a Burton new-build goes into more detail.

Common questions

Can I lay flooring straight away in a new-build?

Upstairs carpet often can be fitted soon after completion. For hard floors on a ground-floor screed, a moisture test is the sensible first step, as the screed may still be drying.

Does the developer’s paperwork tell me if the screed is dry?

Not usually. Handover packs often describe the floor construction but rarely give a moisture reading, so it’s worth testing before moisture-sensitive flooring is laid.

Should I measure before completion?

If the developer allows a visit, measuring early helps with planning. The final quantities are best confirmed in the finished rooms.

Next step

Whether you’re near Branston, Swadlincote or elsewhere locally, see our new-build flooring page, send your plans for an estimate, or request a home measure once you have access. We’re independent and not affiliated with any developer.