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Ok fill in concrete then. Then the na over the whole floor at 3mm Fball f77 3kg / ardex DPM1c 3kg Then the underlay & laminate

I can’t see any visqueen Dpm in your pictures ?

3kg Fball F77

Does the rest of the floor gave a Dpm ? How old is your house. How many m2 is the hallway.

You could use a builders rubble bag. Done it loads. It’s to stop any water / moisture getting through under the door frame. Any moisture tolerant compound is fine. Not sure who you spoke to at Mapei as their na is and can go under liquid Dpms. I do my way as it dries quickly.

best way would be remove all that old Dpm Then put some visqueen sheet in and lap it up the door. Then fill in with the Mapei na and granno chips. I’d then Dpm over all that with an epoxy Dpm but you could just screed it all with the na then use a decent underlay with taped joints.

It’s needs a 10mm compound above the pipes.

Take up the floor and underlay. Leave a week Put heating on low for 30 days Moisture test If under 75%RH then relay the floor.

That size 2mm gap on each side should be ok. Use template paper to mar the curved cuts

When fitting loops you use a square / combination square to make sure the loops are straight. The fitter hasn’t done that as it’s running out. If you cut the sides with a loop pile cutter it’s a lot easier.

Bad fitting that. A rushed job.

Gripper is to far away. Your carpet isn’t stretched. So won’t vac properly. I’d be asking for my money back.

Did you have new grippers and underlay ? Every fit we do we change them or we won’t do the job as if the grippers aren’t in the correct place for the thickness of the carpet you can’t trap the carpet to the skirting correctly to keep it stretched. Can you pull the carpet back and see how many...

I’d fill it flush to floorboards then Dpm resin it. Then go 9mm plywood over the whole area. Decent quality like sp101 if gluing the LVT down.

No. The laminate will move over time and the carpet will move away from the skirts. If you still do it double stick the carpet.

You can use ardex feather finish or a45 rapid repair. Don’t can’t much and scratch the whole floor in it.

SDS drill is best. Or a floor scabbler

Lay 6mm flooring grade plywood down

Winter to spring.

Cut the hole out. Fill in with a46 rapid. Screed floor with ardex na at 3-5mm Dpm 1c P4 primer Ardex CL or NA on top Done it hundreds of times over the last 30 years.