A whole-house floor replacement is a logistics problem as much as a construction one. Where the money goes, what order things happen in, and how to keep living there while it does.
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Homeowners tend to price a whole-house job by multiplying the material rate by the floor area, and then find the quote is well above that number. The reason is that the per-square-foot rate covers open field installation, and a house is not an open field. Every doorway, closet, hallway, stair, hearth, kitchen island and appliance is a cut, a transition or an obstruction, and those cost time rather than material. A compartmented house with many small rooms costs meaningfully more per square foot to floor than an open plan of the same area. When you compare quotes, compare the total, not the rate.
In rough order of impact: the material itself and its wear layer; the condition of the subfloor or slab and what preparation it needs; demolition and disposal of what is there now, which multiplies if there are layers; stairs, which are priced per tread and are one of the most labour-intensive elements in any house; transitions and thresholds at every material change; and baseboard or shoe moulding, which usually has to come off and go back on, and sometimes has to be replaced because it does not survive removal. Furniture moving and appliance disconnection are separate again. A quote that omits four of these is not cheaper, it is incomplete.
Doing everything in one run is cheaper per square foot, finishes faster, and gives a single continuous floor with no awkward joins. It also means the house is a construction site and most households move out for part of it. Phasing lets you stay, spreads the cost, and is the sensible route when budget rather than schedule is the constraint. The costs of phasing are real though: mobilisation is charged more than once, material from a later dye lot may not match precisely, and you inherit a transition wherever two phases meet. If you phase, buy all the material at once from the same lot and store it, and agree where the joins will fall before the first day.
If the house has a staircase, it is the most expensive area per square foot in the project and the one most often glossed over. Treads and risers are cut individually, stair nosing has to be selected to match the flooring, and the result is highly visible. Not every material is suitable - many click-lock floating products are not rated to be installed on stairs at all, and doing it anyway is how a floor ends up creaking and separating within a year. Get stairs quoted per tread, in writing, with the nosing product named, and ask directly whether the manufacturer approves that product for stair use.
Wood and wood-based products expand and contract with the moisture in the air, and the San Gabriel Valley runs hot and dry in summer, which is a different environment from the coastal side of the county. Manufacturers specify an acclimation period, usually with the material stacked in the rooms where it will be installed, and an expansion gap at the perimeter that the baseboard then covers. Skipping acclimation to save two days is a common cause of gapping in winter or buckling in summer. Ask what the acclimation period is for the product being installed and confirm the material will actually be on site for it.
The logistics decide how bearable the project is. Contractors price furniture moving very differently, and some will not move electronics, pianos, aquariums, gun safes or anything they consider a liability. Beds and appliances need somewhere to go. Interior doors often have to be trimmed if the new floor is thicker, which means the doors come off. Pets need a plan, because dust and open doors are the two conditions in which they escape. Decide early whether you are moving out, and if you are, price a portable container or a short storage rental into the budget rather than discovering it in week two.
The most common failures are preparation skipped, transitions unpriced, and a change order arriving after demolition. The second layer of failures is subtler: a floating floor installed without the perimeter expansion gap so it buckles when the material grows; a product installed continuously across too large a run without an expansion joint; a mismatched height where the new floor meets an existing tile entry; and undercut door casings that were not undercut, leaving a visible caulked gap. Every one of these is visible on the finished job and none of them is quick to correct afterwards.
Ask each contractor for the same line-item breakdown: demolition and disposal, subfloor or slab preparation with the method named, underlayment, material with product line and wear layer stated, installation, stairs per tread, transitions and thresholds itemised, baseboard or shoe removal and reinstallation, furniture moving, door undercutting, and clean-up. Ask what is assumed about the substrate and what the process is if that assumption is wrong. Ask who is on site doing the work and whether any part is subcontracted. Then compare totals. A contractor who produces that breakdown without complaint has almost certainly done the job before.
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