An independent reference about bathrooms and the wet rooms of a home. We sell nothing and do no work; we are not connected with the former site on this domain. Trust electrics, gas and shared building pipes only to specialists.

FAQ

Questions and answers

Here are the questions that come up most often when someone notices damp in the bathroom, starts a bathroom renovation or faces a leak for the first time. The answers are short and general: they help you understand what is going on and where to start, but they do not replace an inspection by a pro, the manufacturer's instructions or a conversation with the building management.

In a leak, shut off the water first and figure out the cause afterwards.

— Worth remembering

About this reference

Is Domfordom connected with the former site on this domain?

No. This domain used to host unrelated pages; their content has not been kept and is not reproduced here. The reference came later and has nothing to do with them, and the name stayed with the domain.

Do you sell plumbing fixtures or do renovations?

No. We sell nothing and do no work, we do not recommend specific contractors and we do not take payment for mentions.

Why don't you name brands or give calculations?

Product ranges and terms keep changing, and every home is built differently. We explain which properties to look at and what to ask; check the specific requirements for materials and work in the manufacturers' instructions and with specialists.

Who is this reference written for?

For people living in ordinary apartments and houses: new homeowners, families with small children or older relatives, and anyone getting ready to renovate a bathroom or who simply wants it to be dry and clean.

Renovation

Do I need waterproofing if the floor will be tiled?

Yes. Tile and grout do not stop water on their own: it gets through joints and cracks. Waterproofing goes under the finishes, especially on the floor, at the threshold, in the shower area and on walls that get splashed. Exactly where is decided together with your contractor.

Can I hook up a water heater or underfloor heating myself?

No. This is electrical work in a wet room and is done by an electrician, together with a plumber if the device connects to water. You can decide in advance where you want the device and discuss it with the specialists before the finishing work begins.

Can I replace the pipes that run to the neighbors?

Risers and anything that is part of the building's shared property are not touched without the building management. If they are old or leaking, let them know: replacement is agreed and carried out by specialists, often with the water shut off for the whole stairwell or building section.

What should I check when the contractor is done?

How water drains from the floor and the shower, whether there are gaps in the grout or breaks in the sealant, whether connections under the sink and at the toilet leak, and whether the door and cabinet doors close properly. And ask for photos of the hidden work if you did not take them yourself.

Care and leaks

Why does the mirror take so long to clear?

It means damp air is not leaving fast enough. Check the draw with a sheet of paper, leave the door ajar after a shower and do not dry lots of laundry in the bathroom at once. If there is almost no draw, tell the building management, and discuss installing a fan with an electrician.

How do I remove black buildup from the sealant along the tub?

If the buildup is only on the surface, a product suitable for sealant will help, used strictly per the manufacturer's instructions. If the spots are inside the bead, it is easier to replace it entirely. Either way, dry and ventilate the bathroom, or the buildup will return.

What should I do if water is coming from above?

Put containers under it, move belongings and appliances out of the water's path, and do not touch wet light fixtures or outlets; if water is near electrics, cut the power at the panel if it is safe to do so. Go up to the neighbors above, and if they are not home or the water is coming from a riser, call the building management's emergency line. Photograph the damage: you will need the photos when the report is drawn up.

Can I mix two products to clean faster?

No. Household cleaning products must never be mixed: it is dangerous. Use one product per the manufacturer's instructions and ventilate well. If it did not do the job, do not add another one; reread the recommendations for your surface instead.

  • How-to

    How to renew the sealant around a tub, clean a sink trap and refresh tile grout lines, calmly and following the manufacturer's instructions.

  • Planning

    The order of a bathroom renovation: inspection, waterproofing and ventilation, specialist work, sequence of jobs, sign-off and choosing a pro.

  • Care

    Caring for grout, sealant, drains, faucets, the exhaust fan, glass, textiles and bath mats, by fixture and by season.

What we rely on

  • Instructions from manufacturers of finishes and plumbing fixtures
  • Rules for using residential premises and guidance from building management
  • Domfordom editorial materials

Domfordom's advice is written in general terms and is based on the instructions of finish and plumbing fixture manufacturers and on guidance from building management. Check the label for sealant or grout drying times and for how to use a cleaning product, and leave electrics, gas and shared building pipes to specialists.