Burnsville Wood Flooring installs, sands and refinishes wood flooring in Falcon Heights, and we have been doing that work in heated Minnesota houses for more than twenty years. A wood floor is specified for a narrow humidity band, and most of the houses we work in drop out of it every January. So the first thing we do on a Falcon Heights job is read the indoor relative humidity with a hygrometer and write the number down.
The second thing we settle is who has to sign off, and here that question has a local answer rather than a state one. This city asks something of a flooring-only crew that the state does not, and it does not employ the inspector who would come to look at the work. Both are worth knowing before a quote is signed rather than after a crew is booked.
What follows is how we handle those approvals, and what this particular stock of houses asks of a sanding and finishing crew. The same crew that takes the first moisture readings writes the grit sequence, and the same crew is there for the final coat.
A city license the state exemption does not clear
Minnesota exempts a specialty contractor who provides only one special skill from state residential contractor licensure, under Minnesota Statutes 326B.805 subdivision 6, and the statute’s own definition of interior finishing in 326B.802 subdivision 15 expressly contains wood floors. A crew that does nothing but flooring therefore sits outside the state licensing system by design. Falcon Heights is one of the cities that writes its own requirement over the top of that exemption.
The chapter 14 requirement
City Code chapter 14, section 14-8 requires a City of Falcon Heights general contractor license precisely of residential building and remodeling contractors who provide only one special skill, together with commercial building and remodeling contractors who are not required to have a state license. The examples the city itself gives run to asphalt paving and driveway installation, cement and brick work, moving or demolition of buildings, drywall, roofing and fence installation. It is a municipal requirement aimed squarely at the single-skill trades.
The practical point for a homeowner is that this requirement is local, so it does not show up on any statewide lookup and it is easy to miss. Ask the city clerk’s office early what your particular job needs, before schedules are set and materials are ordered. We would rather have that conversation at the estimate than on the morning a sander comes off the truck.
What the exemption does not settle
The state exemption is narrower than it sounds, and it is routinely over-read. It lifts a state credential requirement from a single-skill trade; it lifts nothing from the building code, from a city ordinance, or from the federal rules that attach to the work itself. Minnesota Rules 1300.0120 subpart 4 makes the same point about permit exemptions, stating plainly that an exemption does not authorize work in violation of the code or of other ordinances.
Because a flooring crew sits outside the state system, the documentation you hold is the documentation you asked for. We hand over a written grit sequence and finish schedule with the quote, so the finished floor can be checked against something specific rather than against a memory of a conversation. That costs us nothing to write down, and it settles most of what would otherwise be argued at the final walkthrough.
Looking for wood-flooring closer to Chaska? See Wood-Flooring in Chaska.
Where the permit comes from, and who looks at the work
Falcon Heights issues its own building permits, but it does not staff its own building inspector. Building inspections are scheduled through the City of Little Canada, whose building official serves Falcon Heights. Those are two different offices for one job, and a contractor who assumes they are one office loses a day finding out.
Finish work, and where the permit line sits
Most residential wood flooring work is finish work laid over an existing structural floor, and Minnesota Rules 1300.0120 subpart 4 item A exempts similar finish work from a permit. The line moves the moment a job touches structure, whether that is a soft joist bay, a subfloor replaced rather than skinned, or a wall opened so a run can carry through. We work out which side of that line a job falls on before we quote it, and we say so plainly when it crosses.
The exemption governs the permit, not the standard. A floor put down without a permit is still answerable to the Minnesota State Building Code, and to the NWFA installation guidelines that set acclimation, expansion gap, fastener gauge and the fastener spacing schedule. We build to those whether or not anybody is scheduled to come and look.
Scheduling around a contracted inspector
When a job does need an inspection, the call goes to Little Canada rather than to the Falcon Heights front desk, and the lead time belongs to them. We build that into the sequence instead of discovering it on the morning a subfloor is ready to close.
Ramsey County appears in the Minnesota Rules 1303.1600 Zone II county list, where the minimum allowable footing depth due to freezing is three and one-half feet. That figure belongs to whoever built the addition rather than to us, but it explains why a floor running from an original house into a later bump-out is crossing between two separate structures. We take moisture content readings on both sides of a transition like that before we join a run across it.
Upstairs floors and the sound requirement
There are 802 housing units here in structures of two or more, and 75 owner-occupied units in buildings of fifty or more, so a fair share of these floors have somebody living underneath them. Minnesota retains IRC Appendix K, which sets sound transmission class 45 and impact insulation class 45 for townhouses and two-family dwellings under Minnesota Rules 1309.0302 subpart 2a, and an association will often write its own number over the top. We get the association and board paperwork settled before an upstairs job starts, so the work is not stopped halfway through a sanding day.
University Grove and the floors on university land
University Grove is a neighborhood of 103 architect-designed homes that the University of Minnesota created in 1928 to recruit and retain faculty. Owners have been required to use an architect since the neighborhood was created, the university retains title to the land, and residents pay an annual ground rent. The Grove carries work by Ralph Rapson, Winston and Elizabeth Close, Edwin Hugh Lundie and Richard Hammel.
Matching a floor that was drawn
A floor in a house like that was drawn rather than picked off a rack. It might be narrow strip white oak or red oak running a specified direction, a border turning at a doorway, a change of species at a threshold, or a herringbone or chevron field in one room and nowhere else. Our work on those is to match what exists, from species and cut to board width and sheen level, rather than to introduce a decision the original drawings never made.
Refinish, recoat, or replace boards
Mid-century flooring is usually worth sanding; the real question is how much sanding is left in it. We measure the wear layer before quoting a refinish on anything engineered, because past a certain thickness there is nothing left to take off and a drum sander establishes that permanently. On solid strip we set the grit sequence from what the floor shows us, often a 36-50-80 sequence, with the edger and the buffer following the same steps so the perimeter does not read differently from the field.
A screen-and-recoat is the cheaper answer and it is sometimes the right one. Where the finish is worn but the wood underneath is not, an abrasive screen and a fresh coat of waterborne polyurethane buys years without spending any of the wear layer. We quote a recoat honestly against a full sand-and-refinish, including the jobs where the cheaper one wins.
Where a floor has lost boards to an old radiator leak or a register cut that was patched badly, a weave-in or a dutchman patch keeps the original field intact. Matching a strip floor from this era means matching the cut and the board width, not only the species. We would rather spend a day chasing a match than leave a visible rectangle in the middle of a room somebody designed.
The 1940s and 1950s cohort, and what is under the carpet
Of 2,147 housing units in the city, 19.0 percent were built in the 1940s and 17.5 percent in the 1950s, which puts the middle of the last century at the center of the stock. Half of it, 50.2 percent, predates 1960, and 76.9 percent predates 1980. Owner-occupancy stands at 57.4 percent, 1,170 of 2,039 occupied units, and 1,077 of those owner-occupied units are single detached houses.
Pre-1978 houses and lead-safe sanding
Because more than three quarters of the stock predates 1980, a sanding job here is frequently a pre-1978 job. Minnesota is not an EPA-authorized RRP state, so the federal EPA Renovation, Repair and Painting rule governs renovation that disturbs paint in pre-1978 housing. Taking a floor down to bare wood also takes the base shoe and often the baseboard with it, which is the point at which that rule stops being theoretical.
We run dust containment on every sanding job, and we give a straight answer about what it does not catch. No containment setup is a clean room, and fine dust still finds the tops of door casings and the inside of a closet. Hearing that before the job is better than discovering it once the furniture comes back.
What we look for under the carpet
A good share of the original strip flooring in this cohort is still under carpet, tacked at the perimeter and in better condition than the owner expects. Before quoting we pull a corner and look for the tack strip line, earlier sand-throughs at the doorways, lathe checks in the face of the boards, and overwood at old patches. Those tell us whether the floor comes back with a full sand or whether board replacement has to come first.
The heating season and the humidity band
This metro heats overwhelmingly with warm air, since 89.1 percent of owner-occupied homes here run a warm-air furnace, and a forced-air winter pulls indoor relative humidity far below the thirty to fifty percent and sixty to eighty degrees Fahrenheit band the NWFA sets for wood. Seasonal gapping, dry cupping and the January phone call all come out of that gap. We measure the gaps, explain which of them are normal, and say which will close again by June before anyone calls the floor defective.
Before a board goes down we check the moisture content of the flooring against the moisture content of the subfloor with a moisture meter, and the hygrometer reading goes into the file alongside it. Acclimation is not a fixed number of days; it is the point where those two readings agree and the equilibrium moisture content holds. Sequencing a job around the heating season rather than in spite of it is most of the reason a floor still looks right three winters later.
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