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Seattle’s Hardwood Flooring Installation and Refinishing Experts

We service all hardwood flooring needs from work as simple as sanding and refinishing, to repairs and custom installations. We work closely with many Real Estate companies, contractors, and interior designers, as well as home owners .

Installation Guidelines

Pre-Installation requirements/sub-floors:

Hardwood flooring should be one of the last items installed for any new construction or remodel project. The room temperature and relative humidity within the installation area should be consistent with normal, year-around living conditions for at least one week prior to the installation of the hardwood flooring. This reflects a temperature of 65-72° and a relative humidity of 40-50%. Sub floors must be structurally sound, clean, and free of wax, grease, paint, old adhesives and other substances. Sub floors must be flat to 3/16” per 8’ radius. Any high spots should be sanded down and low spots should be filled. If there are any squeaks, the sub floor should be screwed down in the particular area.

Please Note: The new installed hardwood floor will only be as even and flat as the sub floor is.

Installer/Owner Responsibility:

Please inspect all material carefully prior to installation. Hardwood floors are a natural product made from wood, which can vary in color and grain characteristics. If the flooring is not acceptable as to grade, color, finish and quality- do return it. Contact the seller immediately and arrange for replacement material. Some of the exotic and native wood species, may have colors either much darker or much lighter than the overall collor of the floor.  These are good quality boards otherwise.  Once you open a bundle or two and you see something you don’t like , pointed out and it will not be installed. Engineered hardwood floor is covered by a residential, structural Lifetime Warranty if installed and maintained according to the guidelines provided herewith. The manufacturer declines any responsibility for job failure due to sub floor or job site environmental deficiencies. When the flooring is ordered, 5-7% must be added to the actual square footage measured for cutting and grade allowance.

Wood Sub floors

Must be dry. The moisture content of the sub floor must never exceed 12%, preferably below 11%.


Must be fully cured (at least 60 days old) and should have minimum 6-mil. polyfilm between concrete and ground. We can not install on concrete unless you are sure it will stay dry year-round. All concrete should be tested for moisture. This is how you can test it yourself, tape a 2’ x 2’ section of clear plastic to the concrete slab forming an airtight seal. If condensation or discoloration appears on the plastic after 24-48 hours, moisture is more than likely present, requiring a Calcium Chloride test. The maximum acceptable reading is 3 lbs/24 hours/1000 sq. ft.

Installing solid, unfinished hardwood flooring over in-floor heat (radiant heat)


Generally speaking, solid hardwood flooring can be installed over heated sub-floors. In many cases it works better that going with engineered flooring.

Important is that the product has a high rating when it comes to the “dimensionally stability” of the wood species. Exotic species such as ‘Angelim Pedra’, ‘Peruvian Olivewood’, ‘S. Am. Pearwood’ and ‘Sucupira’ (Braz. Walnut) are suited for ‘In-floor heat applications.

Our recommended procedure is as follows:

The heating system has to be running at normal conditions for about 2 weeks to dry out the sub-floor. The moisture reading should be less than 6 % in the sub-floor before installing the flooring.

After the sub-floor is dry, the flooring material should be spread over the full area to fully acclimate. This will take about a week time; at that time the flooring material should have a moisture reading of less than 7 %.

After that the flooring can be installed. It is advisable to wait another few days to one week before sanding and finishing the floor.

If these steps are followed, there should be no or very little movement of the hardwood floor – assuming that the heating system runs properly within the recommended temperature.

Please note, the temperature of the sub-floor surface should never exceed 85 degree Fahrenheit.

There is also no warranty from any flooring producer when it comes to the installation of solid, unfinished flooring over radiant (in-floor) heat applications. The manufacturer or distributor or/and installer has no control over the specific environment of the place of installation.

Hardwood Floor Refinishing

Refinish is the process where you have an old floor or worn out due to wear and tear, or just simple want to change the look of the existing floor. Weather you are moving in to a new home or existing one. The process could take three to four day before you can walk back on the floor. We simply strip down the existing floor finish, or whatever is left of it, and re – coat it with new one.  If you want to change the color of the floor, a coat of stain will be applied before the application of the finish coats. Once your floor is done you can’t use any liquids, including water to clean the floor during the first three weeks. Floor coatings are only resistant to chemicals and water after they are fully cured.  Curing time for all wood flooring finishes to reach full hardness is about 2-4 weeks. The curing time depends on the type of finish as well as the temperature and the relative humidity.  You could move furniture back after 2 – 3 days, area rugs need to wait until your finish is fully cured.