Hardwood Flooring Installation · Guelph
Hardwood Flooring Installation in Guelph
Hardwood fails for two reasons: it went down on a subfloor that was not flat, or it went down at the wrong moisture content. Everything else is trim work.
Hardwood is still the floor most Guelph homeowners ask for first, and it is the one where the preparation matters more than the product. A mid-range engineered floor installed properly will outlast an expensive solid floor installed over a wavy subfloor in a house that was not conditioned. So the quote starts with the subfloor, not the sample board.
Solid or engineered
Solid hardwood is a single piece of wood, usually 3/4 inch, nailed or stapled down through a tongue into a wood subfloor. It is the right choice on a main floor or upstairs in a house with a plywood or plank subfloor, and its one real advantage is that it can be sanded and refinished several times over its life. It is not a below-grade product and it does not go directly on concrete.
Engineered hardwood is a real wood wear layer over a cross-laminated core. It moves far less with seasonal humidity swings, which matters in a Guelph house that goes from a humid August to a dry January with the furnace running. It can be nailed, glued or floated, it works over concrete with the right moisture control, and it is the sensible choice for basements, for slab-on-grade rooms and for wide plank. The thing to look at when comparing products is the thickness of the wear layer above the tongue, because that is what determines whether the floor can ever be refinished.
What the subfloor has to be
Most hardwood manufacturers spec a subfloor flat within roughly 3/16 of an inch over a 10-foot span, and they will decline a warranty claim on a floor laid outside it. Guelph's pre-war houses are rarely anywhere close. Between settled joists, an old plank subfloor that has cupped, and a bearing wall that has pulled the floor down toward it, a straightedge across a downtown living room commonly shows half an inch of variation. That gets fixed before the floor goes down — shimming and sistering where there is structure to work with, a plywood overlay where the plank subfloor is too irregular to fasten into reliably, and patching compound for localised low spots.
On the new builds in the south end the problem is smaller but not zero. OSB swells at the seams if it got rained on during framing, and those raised seams telegraph through a floating floor within a year. They get sanded flat. Loose subfloor panels get screwed off to the joists before anything covers them, because after the hardwood is down the only fix for a squeak is an unpleasant one.
Moisture and acclimation
Wood reaches equilibrium with the air around it. Deliver a pallet of hardwood into a house that has been sitting empty and unheated through a renovation, install it the same day, and it will either gap in winter or cup in summer. The material gets delivered ahead of the install, the house gets brought to normal living conditions, and the moisture content of the wood and the subfloor are both read with a meter before anyone starts. If the readings are too far apart, the install waits. That is an inconvenient answer and it is the right one.
Concrete gets treated as a moisture source until proven otherwise. That means an in-situ relative humidity test or a calcium chloride test on the slab rather than taping a piece of plastic down overnight and calling it good, and an appropriate vapour retarder or moisture-control adhesive based on what the test says.
Century homes: the details that eat the schedule
- Baseboards. In a lot of Guelph's pre-war houses the tall painted baseboard was installed before the finish floor, so it cannot simply be pried off and put back without damage. Either it comes off carefully and gets touched up, or the new floor is scribed to it and finished with a shoe moulding. Both are fine, both look different, and you should decide which before the crew arrives.
- Radiator pipes. Supply and return pipes coming up through the floor get the board cut and fitted around them with a collar, not filled with caulk.
- Registers. Floor registers from the old gravity system usually need re-framing when the floor thickness changes, and flush-mount wood registers have to be ordered with the flooring, not after.
- Door casings. Undercut, so the flooring runs under them. Cutting the flooring around a casing is how a job announces itself as amateur.
- Transitions. Where a new floor meets an original one at a different height, and where a 1970s addition meets the original house, the transition is designed deliberately rather than covered with a strip of T-moulding as an afterthought.
Layout decisions worth making early
Direction matters more than people expect. Running plank perpendicular to the joists is the structurally sound default, and in an open-concept south-end main floor the long dimension usually wins visually. In a century home with several small rooms off a hall, running the floor continuously through the doorways rather than stopping at each one is what makes the house feel bigger. Board width, whether there is a border, and whether the stairs get capped in the same species are all cheaper decisions to make on paper than on installation day.
Frequently asked questions
Should I pick solid or engineered hardwood for a Guelph house?
Main floor or upstairs over a wood subfloor, either works and solid gives you more refinishing life. Basement, slab-on-grade, over in-floor heat, or anything wider than about five inches, engineered is the better engineering answer because it moves less. If you want one floor running continuously from a main floor down to a finished basement, engineered is the only way to do it properly.
Can hardwood go over my existing floor?
Sometimes. Over a single layer of well-bonded sheet vinyl or over old hardwood that is flat and solid, yes. Over carpet, no. Over ceramic, only with preparation. The bigger question is height: every layer you add raises the floor, and in an older Guelph house that can mean a door that no longer clears, a stair riser at the top of the flight that is now a different height from the rest, and an appliance that will not slide back under the counter. All of that gets worked out at the measure.
How long does hardwood need to acclimate?
It depends on the product and on how far apart the wood and the house are when it arrives, which is why it gets measured with a meter rather than counted in days. What matters is that the house is at normal living temperature and humidity while it sits, not that the boxes were in the garage for a week. A crew that skips this step entirely is the single most common cause of a floor that gaps the first winter.
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