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From Just $3/sq ft
17+ Years of Local Expertise
Certified Pet- & Family-Safe Finishes
Repairs Before Refinishing
15,000+ Hands-On Hours
Big Bro Hardwood is an employee-owned hardwood flooring company serving Darien and the surrounding suburbs. We install, sand, stain, refinish, and repair solid and engineered wood floors, starting around $3 a square foot. In 17+ years, we have completed 500+ floors across the area – bringing narrow-strip red oak back to life in Darien’s 1960s and 1970s split-levels and ranch homes, refreshing original hardwood uncovered beneath old carpet in mature subdivisions, and fitting new plank floors into the move-up two-story homes built through the 1990s and 2000s.
The same small crew handles your project from the first measurement to the last coat – no rotating subcontractors, ever. We give you a clear, line-by-line estimate at no charge within 24 hours. Our vacuum-assisted sanding captures 95% or more of dust, and we finish with Bona and Loba products that are kid- and pet-safe once fully cured.
Premium Results From $3/sq ft
Beautiful hardwood floors in Darien don’t have to come with an intimidating price. Our work starts at just $3, covering everything from full installations to refinishing. Want a quick sense of what your project might run? Use our hardwood floor cost calculator to get a ballpark before we even set foot in your home.
On-Time, No-Stress Projects
We show up when we say we will, keep your home tidy throughout, and talk to you at every step. No surprises, no hand-offs to strangers. The same small crew handles your project from the first walk-through to the final coat, so nothing gets lost between visits and the work stays consistent.
Dustless Sanding Technology
Our vacuum-assisted sanding equipment captures 95% or more of dust at the source, so it never settles into your furniture, vents, or air. For Darien families dealing with pets, allergies, or just a clean house, that matters. You get a smooth, professional result without the mess that follows traditional floor sanding.
Tailored for Darien Homes
Darien’s housing stock is a real mix: 1960s-1980s split-levels and ranches with plywood subfloors over basements, newer two-story move-up homes, and townhomes near the main arterials. We account for subfloor conditions, seasonal humidity, and the specific demands of each structure before any board goes down, so the finished floor performs year after year.
Floors and Stairs Under One Scope
Big Bro Hardwood covers installation, sanding, staining, refinishing, repairs, and stairs – all through one coordinated crew. That means your species, plank width, stain color, and sheen stay consistent from the main floor right up the staircase. One point of contact, one unified result, and no gap where two contractors have to agree on anything.
GREENGUARD-Certified, Pet-Safe Finishes
We use Bona and Loba products on every finish job. These are low-VOC, GREENGUARD-certified coatings that are safe for kids and pets once cured – an important detail in any busy Darien household. Whether we’re finishing solid oak or engineered hardwood, the products we choose protect your floors and your family at the same time.
From the split-levels in Marion Hills to the move-up colonials in Hinsbrook, we handle every hardwood flooring need Darien homeowners run into.
We’re a hardwood floor company based in the Darien area, with 17+ years of hands-on experience in hardwood floor installation, floor refinishing, staining, and repair services. Our team is small, focused, and takes pride in doing every job right, from the first measurement to the final product.
We’ve completed 500+ Darien-area projects across the city and the Chicagoland area, and we work closely with every client to make sure the results match their flooring needs — no shortcuts, no guesswork. Big Bro Hardwood wood flooring contractors adhere to the industry’s National Wood Flooring Association Technical Guidelines.
Our wood flooring company believes in clear communication, the best materials, and clean, quality work. More than 80% of our new clients come from satisfied customers who recommend us to family, friends, and neighbors — and we’re genuinely proud to earn that kind of trust.
17+ years
Of experience
500+
Hardwood floor projects completed
30+
Suburbs served
1 crew
No subcontractors - the owner is on every hardwood job
Donatas
Owner
Valdas
Team member
Slavek
Team member
Darien's mix of mid-century ranch homes, split-levels, and newer move-up subdivisions each come with their own subfloor conditions and climate challenges, so we adjust our approach before we ever open a box of flooring.
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1960s-1980s Split-Levels and Ranch Homes
Most of Darien’s core housing stock was built during this era, and many of those homes still have the original narrow-strip red oak under the carpet. We check the boards and subfloor up close before recommending anything. If the wood is sound, dustless sanding and refinishing brings it back for a fraction of replacement cost. Homes built before 1978 get our full EPA Lead RRP protocol, including containment, HEPA vacuuming, and surface verification.
2
Additions and Blended Floors
When a family room addition or kitchen remodel meets the original framed floor, matching species, width, and stain is the real challenge. We assess both sections, correct height differences at the transition, and site-finish the new wood alongside the old so the color reads consistently across the room.
3
Newer Subdivisions and Move-Up Homes
Darien’s 1990s and 2000s homes often have wider-plank prefinished or engineered wood. Before installation we check subfloor flatness and take moisture readings at multiple points, because even newer plywood over a conditioned basement can have mid-span deflection that affects nail-down performance.
4
Townhomes and Condos on Concrete
Several Darien developments near major arterials are slab-on-grade. We test concrete moisture before selecting a system, then glue down or float engineered hardwood with low-VOC adhesives. We also work around HOA scheduling requirements and keep dust contained so neighbors are not affected.
5
Seasonal Humidity in Darien
Darien’s humid continental climate means wide swings between summer humidity and dry winter air. We acclimate every product on site before installation and recommend keeping interior humidity between 30-50% year-round. That single habit prevents most cupping, gapping, and finish problems we see in the area.
In many Darien homes the original wood is worth saving rather than replacing, and the only way to know for certain is to look at the subfloor and the boards up close.
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Call or send the form, tell us about your floors, and we’ll set a time to come look.
2
We measure, check the wood and subfloor, talk through color and options, and leave you an itemized estimate.
3
Our crew handles prep, sanding, install, stain, and finish on a dust-controlled setup, cleaning up daily.
4
We do a final walkthrough, go over care and timing, and stand behind the work.
Here is a recent refinishing job from a Darien split-level where years of foot traffic had left the original boards worn, scratched, and completely dull. We sanded them back to bare wood, repaired the damaged areas, and refinished them from scratch - same floors, no replacement needed. Take a look at the before and after photos and judge the results for yourself. We think they speak pretty clearly.
Get a free in-home estimate within 24 hours. No pressure, no hidden costs — just honest advice and expert results, and no cutting corners.
A recent Darien project: a water-damaged red oak floor with lifted boards, repaired, sanded, and color-matched back to a clean, even finish. See how we handled the repair and refinishing.
Interesting project in Darien: water-damaged dining room with lifted boards and an uneven first floor—repaired, sanded, and color-matched in 3.5 days.
Learn moreGet a realistic budget range in about a minute for refinishing, new installation, replacing carpet with hardwood, or stairs. It’s a starting point, not a firm quote, and we confirm the exact figure with a free in-home estimate.
Choose what you'd like an estimate for
Not sure which one? Learn about wood types →
* This estimate is for budgeting purposes only. Actual pricing may vary based on site conditions, moisture levels, subfloor state, and access. A final quote requires an on-site inspection.
Not sure which one? Learn about wood types →
Red Oak $3–$7 / sq ft
White Oak $4–$10 / sq ft
Maple (clear coat) $4–$9 / sq ft
Maple (stained) $4–$9 / sq ft
Cherry $5–$12 / sq ft
Walnut $7–$15 / sq ft
Hickory $4–$10 / sq ft
Exotic / Other $8–$20 / sq ft
No removal needed
Remove carpet +$0.70–$1.60 / sq ft
Remove vinyl / linoleum +$1.00–$2.50 / sq ft
Remove tile +$1.50–$3.50 / sq ft
Subfloor leveling / repairs+$1.00–$3.00 / sq ft
Moisture barrier / underlayment+$0.70–$1.50 / sq ft
* This estimate is for budgeting purposes only. Actual pricing may vary based on site conditions, moisture levels, subfloor state, and access. A final quote requires an on-site inspection.
Not sure which one? Learn about wood types →
Red Oak $3–$7 / sq ft
White Oak $4–$10 / sq ft
Maple (clear coat) $4–$9 / sq ft
Maple (stained) $4–$9 / sq ft
Cherry $5–$12 / sq ft
Walnut $7–$15 / sq ft
Hickory $4–$10 / sq ft
Exotic / Other $8–$20 / sq ft
Subfloor leveling / repairs+$1.00–$3.00 / sq ft
Moisture barrier / underlayment+$0.70–$1.50 / sq ft
* This estimate is for budgeting purposes only. Actual pricing may vary based on site conditions, moisture levels, subfloor state, and access. A final quote requires an on-site inspection.
Donatas July 21, 2026
Donatas May 21, 2026
Donatas April 28, 2026
It does, and we plan for it. Split-levels, ranches, and tri-levels from that era typically have 3/4″ plywood or board sheathing over dimensional joists above a basement. That’s a solid platform for nail-down hardwood, but mid-span deflection is common, so we check subfloor flatness and stiffness before we commit to a fastening pattern. We follow NWFA guidelines on every Darien project to make sure the floor performs long-term.
Darien’s humid continental climate means your floors expand in humid summers and contract in dry winters. Keeping indoor humidity between 30-50% year-round is the single best thing you can do to prevent gaps, cupping, or squeaks. We acclimate every board on site before installation, and we talk through humidity management with every homeowner so the floors we install hold up through real Illinois seasons.
Poured concrete basement slabs are standard in Darien, and moisture transmission through them is a real concern. We test moisture levels before recommending any product. Engineered hardwood is usually the right call at or below grade because it handles humidity swings better than solid wood. We’ll map out the moisture conditions at your home and give you honest guidance on what will last, not just what looks good on day one.
Not with us. Homes built before 1978 can have lead-based paint on baseboards, trim, and sometimes subfloor components. We are EPA Lead RRP certified, which means we use proper containment, HEPA-filtered equipment, and post-work verification on every qualifying Darien project. You don’t have to research the rules yourself – we handle compliance so your family stays safe throughout the refinishing process.
Refinishing starts at $3 per square foot, and the final number depends on floor condition, square footage, number of coats, and stain choice. For a quick estimate before we visit, try our cost calculator. For an exact price, we offer a free in-home estimate within 24 hours and provide itemized, line-by-line quotes – no vague lump sums. New clients also receive 10% off when applicable.
Most solid hardwood floors can be sanded and refinished multiple times before replacement makes sense. We look at board thickness, the depth of any scratches or staining, structural integrity, and whether the existing species and width will match what you want. Refinishing almost always costs less and preserves more character than new installation. We’ll give you a straight answer at the estimate – we won’t push replacement if refinishing is the smarter move.
Refinishing a typical Darien home takes two to four days including drying time between coats. Installation timelines vary by scope. You don’t have to leave, but we recommend staying off freshly finished floors until each coat cures fully – we’ll give you a clear room-by-room schedule. Our vacuum-assisted sanding captures 95% or more of dust, so the rest of your home stays livable. We work Monday through Saturday, 8am to 7pm.
Yes. We use Bona and Loba low-VOC waterborne finishes as our standard products. Once fully cured, they are safe for kids and pets – no harsh off-gassing lingering for weeks. We’ll tell you the exact reentry window for the specific finish we use on your floors, because cure times vary by product and conditions. If you have questions about a particular finish before we start, just ask – we’re happy to walk through the options.
Tell us what you need — we’ll help you figure out the best way to get it done.
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