For most homeowners, a siding installation is one of the largest exterior improvement projects they'll ever undertake. It's also one they'll do infrequently — most people go through the process once, maybe twice, in their time at a particular home. That unfamiliarity can make the experience stressful if you don't know what's normal and what's not.
This article walks through the typical stages of a Hardie siding installation in the Chicago area, from initial planning through the final walk-through, so you'll understand what's happening at each step and can hold your contractor accountable to doing it right.
Pre-Project Planning and Inspection
A quality hardie siding installation in Chicago starts well before any materials arrive at your property. Once you've selected a contractor — and our guide on choosing siding contractors in Chicago covers that process thoroughly — the first formal step is a detailed inspection of your home's exterior.
Your contractor should walk the entire perimeter of the house, examining the current siding condition, checking for signs of moisture damage or structural concerns, and noting the specific details that will affect the installation plan: window and door trim conditions, soffit and fascia status, condition of the existing weather-resistive barrier (house wrap), and the state of the underlying sheathing.
In older Chicago neighborhoods — think bungalows in Portage Park, two-flats in Logan Square, or frame houses in Bridgeport — the existing conditions behind the old siding can vary dramatically. Some homes will have perfectly sound sheathing under the old cladding. Others will reveal rotted boards, inadequate insulation, or outdated building paper that needs to be addressed before new siding goes on. A good contractor accounts for this in the estimate and explains what contingencies exist if unexpected conditions are found once demolition begins.
Permits and Approvals
In the City of Chicago and most suburban jurisdictions, siding replacement requires a building permit. Your contractor should handle the permit application, pay the associated fees (which are typically passed through to you as a line item), and ensure the work will be inspected as required by local code.
Permit requirements vary across the Chicagoland area. Some municipalities require only a simple over-the-counter permit for siding replacement, while others may require a plan review if the scope includes structural modifications or changes to the building envelope. If your property is in a historic district or covered by a homeowners' association, there may be additional design approvals needed before work can begin. Our article on Chicago building codes and permits for siding installation outlines the requirements across the area's most common jurisdictions.
Material Delivery and Staging
James Hardie siding is heavy — significantly heavier than vinyl or aluminum. A full load of HardiePlank for a typical Chicago home can weigh several thousand pounds, and it arrives on pallets that need to be stored on a flat, dry surface until installation begins.
Your contractor will coordinate delivery timing and identify an appropriate staging area on your property — usually the driveway, a paved side yard, or a level spot in the yard that can support the weight without damaging landscaping. If you have a narrow lot, as many Chicago homes do, this can be one of the trickier logistical pieces of the project. Discuss staging with your contractor in advance so there are no surprises about where materials will be placed and how long they'll be there.
The material should be stored off the ground (typically on lumber sleepers), protected from rain, and kept in a covered or dry condition. Fiber cement that absorbs excessive moisture before installation can present problems with paint adhesion and dimensional movement after it's on the wall.
Removal of Existing Siding
Unless your home is new construction, the first physical step in the installation process is removing the old siding. This is the messiest and loudest part of the project. The crew will strip the existing cladding — whether it's vinyl, aluminum, wood, or even older asbestos-cement — and dispose of it in dumpsters staged on-site.
A note on asbestos: many Chicago homes built before 1980 have asbestos-containing siding or shingles. If your home is in this category, the removal must be handled by a licensed asbestos abatement contractor, and the material must be disposed of according to Illinois EPA regulations. Your siding contractor should be able to coordinate this or refer you to a qualified abatement firm. Cutting corners on asbestos removal is illegal and dangerous — don't let anyone tell you otherwise.
Once the old siding is off, the crew inspects the sheathing and framing underneath. This is where hidden problems become visible: rotted boards, water stains indicating ongoing leaks, insect damage, or deteriorated sheathing that needs replacement. Any structural repairs should be completed before the new siding system goes on.
Weather-Resistive Barrier and Flashing
Before the new Hardie board siding is installed, the wall surface needs a weather-resistive barrier — commonly called house wrap. This layer serves as the secondary defense against moisture intrusion, and its correct installation is absolutely critical to the long-term performance of the siding system.
The house wrap should be applied in overlapping courses, with seams taped, and integrated properly with window and door flashings. Flashing details at transitions — where the wall meets the roof, around windows, at inside and outside corners, and at the foundation line — are where most moisture failures originate. James Hardie publishes detailed installation specifications for these transitions, and a certified contractor will follow them precisely.
In the Chicago climate, where rain, snow, and ice attack the building envelope from every angle, flashing and moisture management aren't optional extras — they're the foundation of a durable installation. Our article on how Hardie board siding handles Chicago winters explains why these details matter so much in freeze-thaw conditions.
Installing the Siding
With the moisture management system in place, the crew begins hanging the siding itself. For HardiePlank lap siding — the most common profile — installation starts at the bottom of the wall and works upward, with each course overlapping the one below it by the manufacturer-specified amount (typically 1¼ inches).
Fiber cement siding is fastened with corrosion-resistant nails driven into the studs through the sheathing. Proper nail placement is one of the most important details in the entire installation. Nails driven too deep can crack the board; nails placed too high on the plank can allow wind to catch the lower edge and pry the board away from the wall. James Hardie specifies blind nailing (where the nail head is concealed by the overlapping course above) for most applications, and the fasteners should be driven flush with the surface — not countersunk.
Cutting fiber cement requires different tools than cutting vinyl. Most crews use either shear-type cutting tools or circular saws equipped with dust-reducing blades designed for cement board. The silica dust produced by cutting fiber cement is a health hazard, and professional crews should be taking steps to minimize airborne dust — dust-reducing saw blades, vacuum attachments, or cutting stations positioned away from windows and HVAC intakes.
Trim, Caulking, and Touch-Up
After the field siding is in place, the crew installs HardieTrim around windows, doors, corners, and fascia. Trim pieces are typically pre-cut to size and attached with corrosion-resistant fasteners. The joints between trim and siding, and between siding and other building elements, are sealed with a flexible, paintable caulk that accommodates the normal expansion and contraction of the materials.
If you've chosen factory-finished ColorPlus siding, touch-up paint is applied to cut edges, nail heads, and any areas where the factory finish was nicked during handling. If you've opted for primed siding, the entire exterior will need to be painted — a process that's typically handled by the siding crew or a dedicated painting subcontractor.
Timeline and What to Expect Day-to-Day
A complete hardie siding installation on a typical Chicago-area single-family home takes roughly one to three weeks, depending on the size of the home, the complexity of the design, weather delays, and whether any significant repairs are needed to the underlying structure.
During the project, expect noise from saws and nail guns starting around 7:00 or 8:00 AM and running through the afternoon. The work generates debris — old siding, cut-off pieces, packaging — that accumulates in dumpsters on-site. Your contractor should maintain a reasonably clean work site at the end of each day, with sharp objects and tripping hazards cleared from walkways.
Weather is a bigger factor for fiber cement installation in Chicago than it is in milder climates. Hardie products shouldn't be installed in heavy rain, and caulking and painting require minimum temperatures to cure properly. If your project is scheduled during the fall or spring, expect some weather-related schedule adjustments — a professional contractor will plan for this and communicate proactively about delays.
Final Walk-Through and Punch List
At the end of the project, your contractor should schedule a final walk-through with you. This is your opportunity to inspect the completed work closely: check for consistent gaps, look at caulk lines, verify that all trim is properly secured, confirm that touch-up paint has been applied where needed, and make sure that debris has been fully removed from your property.
Create a punch list of any items that need attention and get a commitment from your contractor on when those items will be addressed. Don't make final payment until the punch list is complete and you're satisfied with the workmanship. A reputable contractor will welcome this level of scrutiny — it's a sign that the homeowner cares about the outcome, and it gives the contractor a chance to demonstrate their commitment to quality work.
Understanding the installation process won't make the project stress-free, but it will help you set realistic expectations and recognize quality work when you see it. Combined with thorough ongoing maintenance, a well-installed Hardie siding system will protect and beautify your Chicago home for decades.