Hardwood Floor Refinishing
Professional hardwood floor refinishing by Carpet Services Incorporated (CSI). Sanding, finish restoration, and durable topcoats that bring worn wood back to life across Chicagoland since 1979.
Restore Your Wood Floors Without Replacing Them
Hardwood floor refinishing is the most cost-effective way to restore worn, scratched, or dull hardwood to like-new condition without the expense and disruption of replacing the flooring. If your floors have lost their shine, developed deep scratches from years of foot traffic, or started to look patchy where the finish has worn through, a professional refinish by Carpet Services Incorporated (CSI) can bring them back to their original beauty — often at a third of the cost of new flooring.
Chicagoland homes face specific challenges that accelerate hardwood wear. The region's harsh winters drive salt, sand, and moisture onto entry floors. Dry indoor heating seasons cause wood to shrink and develop gaps, while humid summers swell planks and stress the finish at the seams. Homes in older communities like Oak Park, Elmhurst, and La Grange often contain original hardwood that has been under carpet for decades and needs a full refinish to become livable again. Even newer homes in Naperville and Schaumburg see their builder-grade finishes wear thin within seven to ten years under normal family traffic.
CSI has been refinishing hardwood floors across DuPage, Cook, Kane, and Will counties since 1979. Our in-house crews handle every step — assessing the floor condition, sanding to the proper depth, and applying finish coats that protect your investment for years. One crew, one warranty, one point of contact from the first sanding pass to the final coat.
Sand and Refinish Hardwood for Every Condition
Not every worn floor needs the same approach. The right refinishing method depends on the depth of wear, the type of wood, whether the floor has been refinished before, and the look you want to achieve. CSI offers the full range of refinishing services, each designed to deliver lasting protection and a flawless appearance.
Full Sand and Refinish
The most comprehensive refinishing option, a full sand and refinish removes all existing finish down to bare wood and applies two to three fresh coats of protective finish. This is the right approach when your floor has deep scratches, visible wear patterns in traffic lanes, discoloration from sun exposure or pet stains, or an existing finish that is peeling or flaking. CSI sands through a progressive grit schedule — coarse to fine — that eliminates every scratch and prepares the wood to accept new finish evenly across the entire surface.
Screen and Recoat
A screen and recoat is a lighter, faster, and more affordable option when the finish is worn but the wood underneath is still in good condition. The process abrades the existing topcoat with a fine screen, then applies one new coat of finish over the top. It removes shallow scratches, restores sheen, and extends the life of your existing finish by three to five years. The key advantage is speed — most screen and recoat projects are completed in one to two days with minimal disruption to your household.
Oil-Based Polyurethane
Oil-based polyurethane has been the standard hardwood floor refinishing finish for decades, and for good reason. It creates a warm, amber tone that deepens the richness of the wood grain, builds exceptional durability in fewer coats than water-based alternatives, and is the most forgiving finish for DIY-friendly touch-ups down the road. The trade-off is longer drying time between coats, a stronger odor during application, and a gradual ambering effect that can yellow lighter wood species over time.
Water-Based Polyurethane
Water-based polyurethane is the preferred choice for homeowners who want a clear, natural look that does not shift the wood color over time. It dries faster than oil-based finishes — allowing multiple coats in a single day — and produces far lower VOC emissions during application. Modern water-based formulas have closed the durability gap with oil-based products and now offer comparable wear resistance in high-traffic residential settings. This finish is ideal for light woods, gray-toned floors, and homes where low odor and fast return-to-service are priorities.
Hardwax Oil Finish
Hardwax oil is a penetrating finish that soaks into the wood fibers rather than forming a film on the surface. The result is a natural, matte appearance that feels like bare wood underfoot and highlights the grain pattern without the plastic-like sheen of polyurethane. The defining advantage of hardwax oil is spot-repairability — when a section gets scratched, you can buff and re-oil that area without refinishing the entire floor. This finish requires more routine maintenance than polyurethane but rewards owners with an authentic, living-material aesthetic.
Hardwood Floor Resurfacing
Resurfacing is a comprehensive approach that combines repair work with refinishing. If your floor has damaged boards, deep gouges, gaps between planks, or areas where previous pet stains have darkened the wood, resurfacing addresses these issues before the sanding and finishing process begins. CSI replaces individual boards where needed, fills gaps with color-matched wood filler, and treats stain discoloration before applying the new finish. The result is a floor that looks brand new even when the starting condition was far from it.
From Worn Finish to Like-New Floor in Five Steps
A successful hardwood floor refinishing project depends on proper preparation, methodical sanding, precise finish application, and adequate curing time between coats. Rushing any step — especially the drying time between finish coats — results in a finish that fails prematurely, clouds, or remains tacky. CSI has refined this process across thousands of refinishing projects over 45 years to deliver consistent, durable results every time.
Free On-Site Estimate and Floor Assessment
A CSI estimator visits your home to assess the condition of your hardwood, measure the square footage, and determine which refinishing approach is appropriate — full sand and refinish, screen and recoat, or resurfacing with repairs. We check the thickness of your flooring to confirm it can tolerate sanding, identify any boards that need replacement, and discuss finish options including oil-based polyurethane, water-based polyurethane, and hardwax oil. You receive a written, itemized estimate on the spot with no hidden costs.
Preparation, Repair, and Sanding
The CSI crew begins by removing any shoe moulding, covering vents and doorways, and setting up dust containment equipment. If the floor requires repair — board replacements, gap filling, or pet stain treatment — this work is completed before sanding begins. The crew then sands the floor through a progressive grit schedule: coarse grit to remove the existing finish, medium grit to level the wood, and fine grit to produce a smooth surface that accepts finish evenly. Edges and corners are sanded with specialized equipment to match the field of the floor.
First Finish Coat
After sanding is complete and all dust is vacuumed and tacked from the surface, the crew applies the first coat of finish. Oil-based polyurethane is applied with a professional-grade applicator in consistent, overlapping passes. Water-based finish may receive two coats on this day because of its faster drying time. Hardwax oil is worked into the wood with a buffer pad and any excess is buffed away. The first coat seals the wood and provides the foundation for subsequent layers to bond to.
Additional Finish Coats
Between each coat, the floor is lightly abraded — screened with a fine pad — to create a mechanical bond between layers. This step is critical for preventing delamination, where a new coat separates from the layer beneath it. The second and third coats build the thickness, hardness, and wear resistance that determine how long your refinished floor will look great. CSI applies each coat according to the manufacturer's recommended spread rate and drying time, never rushing the process to fit an artificial schedule.
Walkthrough and Warranty
The project manager conducts a final walkthrough with you to confirm the finish is uniform, the sheen is consistent, and every detail meets your expectations. You receive a written warranty covering our workmanship along with care instructions specific to your finish type — including recommended cleaning products, furniture pad requirements, and the timeline for placing area rugs. CSI also advises when a future screen and recoat would be beneficial, helping you extend the life of your newly refinished floor for years to come.
The CSI Difference in Hardwood Refinishing
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Progressive Grit Sanding Discount operators skip grits to save time, leaving scratch patterns that become visible the moment finish is applied. CSI follows a strict progressive sanding schedule — coarse through fine — that produces a glass-smooth surface ready to accept finish evenly. This discipline is the difference between a floor that looks patched and one that looks brand new.
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Dust Containment Systems Sanding hardwood generates fine dust that settles on every surface in your home if it is not contained. CSI uses professional dust containment systems connected to our sanding equipment to capture dust at the source. Your furniture, walls, and HVAC system stay cleaner, and the final finish is smoother because dust particles are not trapped in the topcoat.
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One Crew, Every Phase The same CSI crew that sands your floor applies every finish coat. No handoffs between contractors, no miscommunication about the approved sheen level, no finger-pointing if a lap mark appears. One team owns the result from start to finish, and that accountability shows in every project we complete.
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Finish Expertise Not all finishes perform the same way on every wood species or in every environment. CSI helps you choose the right finish — oil-based, water-based, or hardwax oil — based on your wood type, your home's humidity levels, your traffic patterns, and the aesthetic you want. The right finish selection is as important as the quality of the application itself.
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Written Warranty Every refinishing project comes with a written warranty covering our workmanship. If the finish fails prematurely due to a defect in our application process, we return to correct it at no charge. That is the confidence 45 years of experience provides — and the accountability your investment deserves.
What Our Clients Say About Hardwood Refinishing
"We pulled up the carpet in our 1950s ranch and found oak floors that had not seen daylight in forty years. CSI assessed them, explained exactly what they could and could not fix, and delivered a full refinish that made these old floors look better than any new flooring we could have bought. The water-based finish is crystal clear and has held up perfectly through two winters."
"Our hallway and kitchen floors were so worn you could see bare wood in the traffic lanes. CSI did a full sand and refinish with oil-based polyurethane and the warmth it adds to the wood grain is stunning. The crew was careful with dust containment — we barely had to clean up after they left. From estimate to final walkthrough, the whole process was seamless."
"I got three quotes to refinish my engineered floors and two companies said it could not be done. CSI measured the wear layer, confirmed it was thick enough for one sanding, and did a beautiful screen and recoat that brought the finish back without risking the thin veneer. Honest assessment, expert work, and a fair price — exactly what I needed."
Related Services & Resources
Hardwood Services
Hardwood Products
Prep & Maintenance
Resources
Hardwood Floor Refinishing FAQ
Hardwood refinishing cost depends on the square footage, the condition of the existing floor, whether repairs are needed before sanding, and the type of finish you select. Carpet Services Incorporated (CSI) provides free on-site estimates that itemize every step — sanding, finish coats, and any prep repairs — so you know the total before work begins. Call (708) 222-8200 to schedule your assessment.
A full sand and refinish typically takes three to five days depending on the square footage and the finish type. Sanding is completed on day one, the first finish coat is applied on day two, and additional coats follow over the next one to two days with drying time between each. A screen and recoat takes one to two days. Your CSI estimator will provide a specific timeline during the free assessment.
Refinishing specifically refers to sanding the floor down to bare wood and applying new protective finish coats. Resurfacing is a broader term that can include refinishing but also encompasses repair work such as replacing damaged boards, filling gaps, and addressing structural issues before the sanding and finishing process. CSI performs both services and will recommend the right approach after inspecting your floor.
It depends on the thickness of the wear layer — the solid hardwood veneer on top of the engineered plank. If the wear layer is at least two millimeters thick, CSI can sand and refinish engineered floors, typically one to two times. Thinner wear layers may only be suitable for a screen and recoat, which abrades only the topcoat without cutting into the wood. CSI measures your wear layer during the free estimate and recommends the safest approach.
Solid hardwood floors in typical residential settings should be refinished every seven to ten years depending on traffic, pets, and sun exposure. High-traffic areas like hallways and kitchens may need refinishing sooner, while bedrooms and formal living rooms can go longer. A screen and recoat can extend the life of your existing finish between full refinishing projects, often adding three to five years before a complete sand is necessary.
A screen and recoat is a lighter process that buffs the existing topcoat with a fine screen and applies one new coat of finish over the top. It removes shallow scratches and restores sheen but does not sand down to bare wood or change the floor color. A full refinish sands the floor to bare wood, removing all old finish and deep scratches, then applies two to three new finish coats. CSI recommends a screen and recoat when the finish is worn but the wood underneath is in good condition, and a full refinish when there are deep scratches, discoloration, or you want to change the appearance of the floor.
Ready to Refinish Your Hardwood Floors?
Whether your floors need a light screen and recoat or a complete sand and refinish, Carpet Services Incorporated has the crew, the finish expertise, and 45 years of experience to restore your hardwood — sanding to finished coat, one company, one warranty.