You've done the research, picked your color, and signed the contract. Now what? If you've never been through a hardie board siding installation before, the process can feel a little mysterious — especially when heavy pallets of fiber cement planks start showing up in your driveway. Here's a realistic walkthrough of what a typical hardie siding installation in Chicago looks like from start to finish.
Before Work Begins: The Pre-Installation Phase
A good siding contractor won't just show up with a truck and start pulling off your old siding. The work starts well before the first nail gun fires.
On-Site Assessment
Your contractor should visit the property to take measurements, evaluate the condition of the existing siding and sheathing, and note any areas that might need special attention — things like rotted trim, water damage around windows, or spots where the house wrap has deteriorated. In the Chicagoland area, older homes (especially pre-1970s builds common in places like Berwyn, Cicero, and the inner-ring suburbs) often have underlying issues that need to be addressed before new siding goes on.
Material Delivery
James Hardie siding is heavy. A standard pallet of HardiePlank weighs well over a thousand pounds, and a typical whole-house job requires several pallets. Your contractor will coordinate delivery, and you'll need clear driveway or yard access. The material should be stored flat, off the ground, and protected from standing water — reputable hardie board siding installers near you will handle this properly without you needing to ask.
Permits
Most Chicago suburbs and the City of Chicago itself require a building permit for siding replacement. Your contractor should handle the permit application. If they tell you a permit isn't needed, consider that a red flag.
Day One: Tear-Off and Inspection
The first day of a siding installation project is usually the messiest. The crew will begin removing the old siding, working in sections. This is when you'll find out what's been hiding underneath. Common discoveries in Chicagoland homes include water-damaged OSB or plywood sheathing, deteriorated house wrap or felt paper, and — in some older properties — original wood sheathing that may need reinforcement.
Any rotted or damaged sheathing must be replaced before new siding can go up. This is non-negotiable for long-term performance. A quality siding contractor will document these findings, show them to you, and explain the repair scope before proceeding. Expect some dust and noise — fiber cement cutting generates fine silica dust, so crews should be using appropriate dust-collection saws.
Weather Barrier and Flashing
Once the substrate is clean and repaired, the crew installs a weather-resistive barrier — typically a house wrap product like Tyvek or a similar material approved by James Hardie. This is one of the most important steps in the entire process. In a climate like Chicago's, where wind-driven rain and melting snow are common, a properly installed weather barrier prevents moisture from reaching the wall framing even if water gets behind the siding.
Flashing around windows, doors, and other penetrations is equally critical. Experienced james hardie contractors near Chicago will integrate the flashing with the house wrap in a shingle-fashion pattern that directs water outward. Sloppy flashing work is one of the most common causes of post-installation water intrusion, and it's not always visible until the damage has already been done.
Siding Installation: Plank by Plank
With the weather barrier in place, the actual siding installation begins. Hardie board planks are installed from the bottom up, with each course overlapping the one below it. The crew uses pneumatic nail guns with corrosion-resistant fasteners — James Hardie specifies stainless steel or hot-dipped galvanized nails to prevent rust staining over time.
Proper gapping is essential. Fiber cement doesn't expand and contract as dramatically as vinyl, but it still needs room to breathe. Your installers should leave consistent gaps at joints and caulk them with a flexible, paintable sealant. In the Chicago area, where temperature swings between winter and summer can exceed 100 degrees, this gap management is particularly important.
Trim and Finishing Details
Once the field siding is in place, the crew installs trim around windows, doors, corners, and soffits. James Hardie makes its own line of trim boards (HardieTrim), which match the durability and finish of the siding planks. The trim work is what gives the project its finished, polished appearance — and it's where the difference between a skilled crew and a rushed one really shows.
If you opted for ColorPlus technology, your siding arrived from the factory pre-finished and the job is essentially done once the last piece of trim is caulked. If you chose primed-only siding, the painting phase comes next — which adds time but allows you to select any color you want.
How Long Does It Take?
For an average-sized Chicago-area home (roughly 1,800 to 2,500 square feet), a full hardie siding installation typically takes five to ten working days, depending on the complexity of the architecture, the weather, and whether significant repairs are needed underneath the old siding. Larger or more architecturally complex homes can take two weeks or more.
Weather delays are common in the Chicagoland area, especially for projects that span late fall through early spring. Fiber cement shouldn't be installed in temperatures below 25°F, and rain delays are part of the process. A good contractor will communicate proactively about scheduling changes.
Final Walkthrough
Once the installation is complete, schedule a walkthrough with your contractor. Check the caulk joints, inspect the flashing details at windows and doors, look at the trim alignment, and make sure all debris has been cleaned up. Any punch-list items — small touch-ups, a scuffed board, a misaligned piece of trim — should be documented and addressed before the final payment.
For more on selecting the right crew for your project, see our guide on choosing a siding contractor near Chicago. And if you're still in the budgeting phase, our cost guide for Chicagoland hardie siding installation has the numbers you need.