Serving Greater Hawthorne

Hardwood Floor Installation

New solid and engineered hardwood floors installed over tested, flattened subfloors in Hawthorne houses, rentals and condos.

Hawthorne Wood Flooring handles hardwood floor installation throughout Hawthorne, CA, serving surrounding cities including Del Aire, Lennox, Alondra Park, Lawndale and West Athens. With more than 20 years of laying wood floors in local houses, apartments and condos, we treat installation as the last step of a job that starts with the subfloor, the moisture readings and the layout.

A new floor fails for reasons that are almost always decided before the first board goes down: wood installed too wet or too dry, a subfloor that flexes, a slab that gives off moisture, or boards packed tight against a wall with no room to expand. We check each of those, write down what we find and only then order material, so the floor we quote is the floor that lasts.

We install both solid and engineered hardwood, prefinished and site-finished, and we plan transitions, door clearances and trim from the start. The result is a floor that sits level with the rooms around it and looks finished at every edge.

Preparing the Subfloor and the Wood

Worker striking a flooring nailer seated on the tongue of a new red oak strip in a Hawthorne dining room.

Checking the Subfloor Before Material Is Ordered

We open the floor where needed and check the plywood or plank subfloor for soft spots, water damage and loose fasteners, and check a slab for flatness and cracks. Problems found now cost far less to fix than after the new floor is in, when they show up as squeaks, dips or boards that will not stay down.

Flatness is checked against the manufacturer’s tolerance and the NWFA installation guidelines. High spots are sanded or ground, low spots are filled, and loose sheathing is screwed down tight to the joists.

Acclimation and Moisture Content

Wood gains and loses moisture until it matches the air around it. We check the moisture content of the new boards and the subfloor with a moisture meter and follow the manufacturer’s acclimation instructions, so the boards are installed close to the conditions they will live in rather than shrinking or swelling afterwards.

The readings go on your estimate. If the numbers are too far apart, we wait, rather than installing on the day the material happens to arrive.

Choosing How the Floor Is Fastened

Nail-Down Installation Over Plywood

Solid hardwood over a wood subfloor is traditionally blind-nailed through the tongue with cleat nails or staples, spaced to the manufacturer’s schedule. This gives a solid, quiet floor that can be sanded and refinished many times. It is the most common method in raised-foundation houses.

Fastener spacing matters more than most people realize. Too few nails and the boards move and squeak, too many near the ends and the tongues split. We follow the spacing for the board width and use a vapor retarder paper over the subfloor where the manufacturer calls for one.

Glue-Down and Floating Installation

Over concrete, engineered wood is usually glued down with a moisture-resistant adhesive or floated over an underlayment with a vapor retarder. Glue-down gives a solid feel and low height. Floating is faster and suits some upstairs units, where an acoustic underlayment can reduce noise for the neighbor below.

Before either method goes over concrete, the slab is tested for moisture with the ASTM F2170 in-situ relative humidity method or a calcium chloride test. The readings decide which adhesive or vapor retarder is needed, and they are the difference between a floor that stays down and one that releases in its first wet winter.

Layout, Trim and Transitions

Board Direction and Starting Lines

Boards usually run the length of the main room or toward the main source of light, and they generally run across the floor joists for strength. We snap a straight starting line off the main walls, since rooms are rarely square, and plan so the last row against the far wall is not a thin sliver.

Where the new floor continues into hallways and adjoining rooms, we plan the whole run before starting so the boards stay straight through each doorway. Mixing lengths from several boxes as we go avoids the repeated patterns and clustered end joints that make a floor look manufactured.

Expansion Gaps and Molding

Every wood floor needs an expansion gap at the walls and fixed objects so it can move with the seasons. We leave the gap the manufacturer requires and cover it with baseboard or shoe molding. A floor installed without it can buckle against the walls the first time humidity rises.

Reducers, T-Molding and Door Clearances

Where hardwood meets tile, carpet or another floor, a reducer strip or T-molding bridges the height difference and covers the gap. We plan those transitions to fall under doors and at natural room breaks. Doors are trimmed where the new floor is higher, so they swing freely without scraping the finish.

Species and Board Width

Oak, Hickory, Maple and Walnut

White oak and red oak remain the most popular because they wear well and take stain evenly. Hickory is harder and hides wear, maple is hard but pale and prone to blotching under stain, and walnut is rich in color but softer. We compare Janka hardness ratings with samples so you can weigh durability against appearance.

If you are adding hardwood next to an existing floor, we identify that species first. Matching red oak to red oak, at the same width, lets the new rooms read as part of the original house, especially once both are sanded and finished together.

Strip, Plank and Wide Plank Boards

Narrow strip flooring suits many mid-century houses and matches existing floors. Wider planks show more grain and fewer seams but move more with moisture, so wide solid boards need extra care with acclimation, and wide engineered boards are often the safer choice over a slab.

  • 20+ Years With Wood Floors
  • Written, Itemized Estimates
  • Low-VOC South Coast Finishes

Good to know

Frequently Asked Questions

How long does a hardwood floor installation take?

A prefinished floor in two or three rooms is often installed in a few days once the subfloor is ready. Unfinished solid wood adds sanding, staining and several finish coats, which can add most of a week with drying time. Subfloor repairs, slab preparation and acclimation all come before that, and we put the full schedule in writing.

Should I choose prefinished or site-finished hardwood?

Prefinished boards arrive with a hard factory finish and can be used right away, which suits occupied homes and rentals on a tight turnover. Site-finished floors are sanded flat after installation, so the surface is seamless and the stain color can be chosen on your actual floor. We lay out the trade-offs for your rooms before you order.

Do I need to remove baseboards for a new hardwood floor?

Usually we either remove baseboards and reinstall them over the new floor, or leave them and add shoe molding to cover the expansion gap. Removing them gives the cleanest result, especially where the floor height changes. On older houses with painted baseboards, we use lead-safe practices when they come off.

Can hardwood be installed over my existing floor?

Sometimes. A floating floor can go over some existing hard surfaces if they are flat, sound and securely attached. Nailing new hardwood over old hardwood or vinyl is possible in some cases, but it raises the floor height and can hide problems below. We check the existing layers and the subfloor first and recommend removal when it is the safer path.

What should I do to prepare my home for installation day?

Clear the rooms of furniture, rugs and anything on the floor, and take down items from walls near doorways where materials will pass. Make sure the heating or air conditioning is running normally, since the house should be at its usual living conditions. We walk through the plan with you beforehand, including where materials will be stored during acclimation.

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