Hello,I need to install porcelain tiles in my house, however, the floor is not leveled.

I have done a lot of tile jobs over the years and will only use porcelain tiles for floors.

I have intentionally removed all other flooring and replaced with hardwood and porcelain tile.

If you're DIY types a granite tile counter and a ceramic or porcelain backsplash is cheap for materials and looks great.Here's a before and after of one of my units.

I've used the standard HD 12x12in porcelain tiles.

N=5yc1vZc57d -220 1 1 -220 Downstairs Inside shower tile http://www.menards.com/main/flooring/tile-stone/slate-tile/ms-international-gauged-slate-floor-or-wall-tile-12x12/p-126268-c-12518.htm -35.51 10 1 -355.1 Downstairs Kitchen Floor (walnut) http://www.menards.com/main/flooring/tile-stone/porcelain-tile/ragno-taiga-glazed-porcelain-floor-or-wall-tile-6x24/p-2181930.htm -3.5 1 600 -2100 Tile Labor -4.25 1 500 -2125 Upstairs Kitchen Floor (walnut) http://www.menards.com/main/flooring/tile-stone/porcelain-tile/ragno-taiga-glazed-porcelain-floor-or-wall-tile-6x24/p-2181930.htm -3.5 1 600 -2100 Downstairs bathroom Floor (black) http://www.menards.com/main/flooring/tile-stone/porcelain-tile/ragno-taiga-glazed-porcelain-floor-or-wall-tile-6x24/p-2181929.htm -3 1 50 -150 Nest Smoke + CO Detector https://store.nest.com/product/smoke-co-alarm/ -99 2 1 -198 Nest Thermostat https://store.nest.com/product/thermostat/ -249 1 1 -249 Fire insulation for kitchen http://www.homedepot.com/p/UltraTouch-48-in-x-24-ft-Radiant-Barrier-30000-11424/100661257 -60 4 1 -240 Fans http://www.menards.com/main/lighting-fans/indoor-lights/recessed-lights/photon-1-light-3-25-in-white-halogen-pot-light/p-1942351-c-7246.htm -125 5 1 -625 Upstairs Kitchen Countertop http://www.menards.com/main/store//20090519001/assets/images6/countertops/CorinthianKitchen2014.pdf -35 1 55 -1925 Downstairs Kitchen Countertop http://www.menards.com/main/store//20090519001/assets/images6/countertops/CorinthianKitchen2014.pdf -35 1 40 -1400 Downstairs Kitchen Backsplash http://www.menards.com/main/flooring/tile-stone/mosaic-tile/mohawk-phase-mosaics-stone-and-glass-wall-tile-5-8-random/p-2191879-c-12510.htm -9.77 1 32 -312.64 Upstairs Kitchen Backsplash http://www.menards.com/main/flooring/tile-stone/slate-tile/epoch-tile-copper-tumbled-slate-mosaic-floor-or-wall-tile-2-x-4/p-2003598-c-12518.htm -11.22 1 45 -504.9 Upstairs Rain shower head http://www.amazon.com/Koko-Rain16-16-inch-Polished-Stainless/dp/B00JJRG0TK/ref=sr_1_106?

I would go with porcelain floors with minimal grout lines.

I understand the my child is porcelain mentality.

You can get vinyl floor which uses a pressure adhesive and the planks do not ship-lap or interlock; this allows each plank to be pulled-up/replaced without disassembling the entire floor.In (converted) houses, I tend towards hardwood (engineered or traditional), a good quality laminate, or ceramic/porcelain tiles (if the subfloor is stable enough).In {older}, stick-built multis, you are often compelled to use soft flooring options (carpet, vinyl, linoleum, cork), particularly in bedrooms and living rooms, due to sound transference.  

I am thinking Tiles, Cabinets, Doors, Porcelain Sinks, Toilets, Lighting fixtures, LED fixtures etc.