Contractor Supplies in Chicago, IL

• Experienced Sales Staff
• Top Quality Products
• Over 30K Square Feet of Stocked Warehouse
• Next Day Free Local Delivery on Most Products
• Over 100 Years of Combined Industry Sales Experience

Thousands of Commercial Products in Stock

From cleaning supplies to power generators, GCS Supply LLC carries it all in our 30K square foot Chicagoland warehouse. If there's something you need that's not in stock, our friendly staff will arrange for items to be shipped directly from the manufacturer to your doorstep. Our service-orientated staff can also suggest products for whatever your situation requires. We're happy to do whatever we can to provide the contractor supplies Chicago, IL needs.

When it comes to your construction needs, GCS has it covered! From shovels to saw blades to air compressors, GCS will assist with whatever your needs might be. Items can be delivered locally in the Chicagoland area or shipped to anywhere in the country.

We are also a proud authorized dealer of S.T.I. (Specified Technologies, Inc.), Knaack Jobsite Boxes, Surface Shields, Falltech, Milwaukee, Tsurumi, Multiquip, ML Kishigo, and Werner Ladders.

Power Tools and Equipment
- Breakers
- Cordless tools
- Grinders
- Gondolas / carts
- Ground thawing
- Job boxes
- Lasers
- Mixers
- Nailers
- Rebar bending
- Rebar cutters
- Roto hammers
- Sanders
- Sawzalls
- Threaders
Building Material
- Access panels
- Caulks
- Firestop
- Flashings/joints
- Foam insulation board
- Lumber
- Plywood
- Roof hatches
- Sealants
Hardware
- Cable hoists
- Carbide blades
- Carbide drill bits
- Chain hoists
- Chem anchors
- Epoxies
- Fasteners
- High-speed bits
- Mech anchors
- Nails
- Powder anchors
- Screws
Hand Tools
- Chisels
- Clamps
- Crowbars
- Cutters
- Edgers
- Fish tapes
- Hammers
- Jointers
- Knives
- Levels
- Picks
- Pliers
- Rakes
- Scrapers
- Screwdrivers
- Shovels
- Sledgehammers
- Snips
- Squares
- Strippers
- Tape measures
- Trowels
- Wrecking bars
Safety Supplies
- Barricades
- Caution tape
- Control tubes
- Dust masks
- Earplugs
- Fall protection
- Fire extinguisher
- First aid kits
- Goggles
- Hard hats
- Lockout/tagout
- Respirators
- Safety cones
- Safety fences
- Safety glasses
- Safety signs
- Safety vests
- Tyvek suits
Surface Protection
- Cardboard
- Carpet shield
- Kraft paper
- Masonite
- Ramboard
- Tackmats
- Walk-off mats
- Zip-walls
Chemicals / Cement
- Asphalt patch
- Concrete mix
- Cures
- Form oil
- Grout
- Joint compound
- Latex bonder
- Mortar mix
- Portland cement
- Salt
- Seals
- White cement
Miscellaneous
- Air hose
- Boots
- Brooms and mops
- Chalk
- Chisels
- Cleaning supplies
- Diamond blades
- Discharge hose
- Duct tape
- Extension cords
- Floor sweep
- Gas cans
- Grinding wheels
- Ice melt
- Ladders
- Marking paint
- Nylon slings
- Points/moils
- Poly
- Rainsuits
- Sprayers
- Suction hose
- Tarps
- Twine