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Deck Builders in Chicago, IL · Licensed & Insured

Custom Decks & Expert Repairs, Built for Chicago Living

Beautiful new builds, structural repairs, and premium staining across Chicago and the suburbs, engineered to survive our winters and backed by hundreds of 5-star reviews.

Licensed & insured
20+ years experience
4.8★ Google rating
Local Chicago experts

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4.8 Google rating
431Google reviews
389five-star reviews
100%licensed & insured
What We Do

Four Ways We Protect and Elevate Your Outdoor Space

Whether your deck needs saving or you're starting from scratch, one accountable crew handles design, permits, build, and finish, start to finish.

Most requested

Deck Repair & Restoration

Wobbly railings, rotted boards, or a deck that just doesn't feel safe? We restore structural integrity and refinish so it looks, and stands, like new.

  • Free on-site safety inspection
  • Board & railing replacement
  • Rot & structural repair

Custom Deck Building

Multi-level composite and hardwood decks, engineered for your yard, your budget, and Chicago building code.

  • Trex® & TimberTech®
  • Custom 3D design
  • Permits handled for you

Deck Staining & Sealing

Deep-clean, sand, and premium stain and seal that stands up to Chicago freeze-thaw and UV, for seasons, not weeks.

  • Power wash & sand
  • Premium stain & seal
  • Custom color matching

Fence Install & Staining

New fencing and restoration that adds privacy, security, and curb appeal, and matches your deck.

  • Wood & composite
  • Install & repair
  • Staining & sealing

Not Sure Which Deck Service You Need?

Repair, replacement, staining, or a brand-new custom deck, most homeowners aren't sure where to start. We'll inspect your deck, give you an honest assessment, and recommend the right solution for your space and budget.

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Built for Chicago Weather, and Built to Be Trusted

Custom composite deck recently built by Core Improve in the Chicago areaRecent Chicagoland project · composite deck
Why Core Improve

  • Engineered for Freeze-ThawProper footings, flashing, and fasteners so your deck won't heave, rot, or pull away after the first hard winter.
  • One Accountable CrewNo subcontractor runaround, the team that quotes your project is the team that finishes it.
  • Transparent, Itemized QuotesYou see exactly what you pay for, materials, labor, and permits, with no surprise change orders.
  • Permits Handled for YouWe pull and manage City of Chicago and suburban village permits so your project passes inspection the first time.

Get your free estimate

How It Works

From First Call to Final Walkthrough in Four Clear Steps

1

Free Estimate

We visit, measure, and give you honest options.

2

Design & Quote

A clear, itemized proposal with materials and timeline.

3

Permits & Build

We handle paperwork and build clean, code-compliant work.

4

Walkthrough & Warranty

We don't leave until you're thrilled, guaranteed.

Real Chicagoland Reviews

Homeowners Don't Just Like the Deck, They Trust the Crew

Rated 4.8 out of 5 across 431+ Google reviews. Here is what recent Chicagoland customers say, in their own words.

★★★★★

Ivan and Juana did a fantastic job refinishing our deck and replacing the lattice underneath. Very professional, efficient, detail-oriented, and highly recommended.

Tom G.Google Review
★★★★★

We had some staining and painting done and love it. The process to get it all scheduled was easy and communication was clear. Would definitely recommend.

Ariel P.Google Review
★★★★★

I had my deck stained and also more secured. They put chicken wire all around the bottom of the deck to keep animals out. Would highly recommend.

Donna M.Google Review
★★★★★

Fast, on-time service with great results. Roman was fantastic. Great work and communication from start to finish.

Steven V.Google Review
Before & After

Real Chicago Deck Transformations

Craftsmanship you can see. Drag the slider on each project to reveal the before and after, real decks we've restored, rebuilt, and refinished across Chicagoland.

Before — worn, weathered deck ready for restoration by Core ImproveAfter — same deck fully restored and refinished by Core Improve

BeforeAfter

Deck Repair

Deck Restoration in Naperville

A tired, weather-worn deck brought back to life, repaired, sanded, and resealed in a warm, protective finish that looks brand new.

Before — dated wood deck scheduled for full replacementAfter — brand-new composite deck installed by Core Improve

BeforeAfter

Deck Replacement

Composite Deck Replacement in Arlington Heights

A dated wood deck torn out and replaced with a richer, low-maintenance build, a modern outdoor living space made to survive Chicago winters.

Before — faded, greyed deck ready for stainingAfter — deep-cleaned, sanded, and premium-stained deck

BeforeAfter

Deck Staining

Deck Staining & Sealing in Evanston

A faded, greyed deck deep-cleaned, sanded, and sealed with premium stain to bring the natural wood grain back to life.

Financing

Your Dream Deck, $0 Down

Don't let budget delay the backyard you want. Flexible, low-monthly financing with $0 down on approved credit, build now and pay over time.

See financing options

Transparent Pricing

What Does a Deck Cost in Chicago?

Every project is unique, but here's a realistic starting range:

Deck repair & board replacementfrom $1,500
Deck staining & sealingfrom $800
New custom composite deckfrom $12,000

Your free on-site estimate gives you an exact, itemized quote.

Get my exact quote

Get an Exact Quote for Your Chicago Deck

Free, no-obligation on-site estimate. Honest advice, itemized pricing, and a deck built to last, with a response within 24 hours.

Request your free estimateCall (847) 778-6554

Chicago Deck Questions, Answered

Should I Repair or Replace My Deck?
If the footings and framing are sound, repair is usually faster and far cheaper, we re-board, re-secure railings, and refinish. If the structure is rotted or unsafe, replacement is the smarter long-term investment. You get an honest assessment at your free estimate, not a sales pitch.
How Much Does It Cost to Build a Deck in Chicago?
Repairs typically start around $1,500, staining and sealing from $800, and new custom composite decks from about $12,000, depending on size, materials, and site access. We provide a free, itemized quote.
Do I Need a Permit to Build or Replace a Deck?
Yes, the City of Chicago and most suburbs require a building permit for new decks and major structural work. We handle the application, drawings, and inspection coordination so it passes the first time.
Composite or Wood, Which Is Better for Chicago Weather?
Composite (Trex®, TimberTech®) resists freeze-thaw cracking, fading, and rot with little maintenance. Natural wood costs less up front but needs staining and sealing every 1–2 years. We walk you through the long-term cost of each.
How Often Should I Stain and Seal My Deck?
In the Chicago climate, most wood decks should be cleaned and re-sealed every 1–2 years and re-stained every 2–3 years to protect against moisture, freeze-thaw, and UV damage.
Do You Offer Financing?
Yes. Flexible financing with $0 down and low monthly payments on approved credit, so you can move forward now and pay over time.
Are You Licensed, Insured, and Guaranteed?
Yes, Core Improve is fully licensed and insured in Illinois, and our work is backed by a workmanship guarantee plus manufacturer warranties.
What Areas Do You Serve?
Chicago and the surrounding suburbs across Cook, DuPage, Lake, and Kane counties, including Naperville, Schaumburg, Arlington Heights, Evanston, Hinsdale, and many more.
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