1. Start With Your Existing Roofing Customers

One of the biggest advantages roofing contractors have is an established customer base.

Homeowners replacing a roof may also have aging siding, storm damage, deteriorated fascia, or exterior trim that needs attention.

Rather than immediately investing in a major advertising campaign, start by identifying customers who have already expressed interest in additional exterior improvements.

Offer siding consultations during appropriate roofing appointments, but avoid pressuring homeowners into unnecessary work.

2. Choose Which Siding Products to Offer

Not every roofing company needs to offer every type of siding immediately.

Vinyl siding is often a practical starting point because it is widely used in residential remodeling and available in numerous colors, profiles, and price ranges.

As your team gains experience, you may consider steel siding, composite cladding, insulated siding, or other specialty exterior products.

Explore wholesale siding products from Suburban Wholesale & Supply to begin evaluating available materials.

3. Train Your Crew Before Selling Siding Projects

A skilled roofing crew does not automatically have the knowledge required for professional siding installation.

Siding systems require specific fastening methods, expansion allowances, flashing details, and accessory installation procedures.

Invest in manufacturer-approved training and hands-on practice. Consider hiring an experienced siding installer or partnering with a qualified siding subcontractor while your company develops its capabilities.

Your first siding projects should be selected based on your crew's actual experience, not simply the potential contract value.

4. Invest in the Right Siding Tools

Many roofing contractors already own ladders, scaffolding, safety equipment, and basic construction tools.

However, siding installation may require specialized tools such as a siding removal tool, snap-lock punch, nail-slot punch, siding shears, and equipment for bending aluminum trim coil.

A portable metal bending brake can be particularly useful for fabricating custom window trim, fascia covers, and other exterior details.

Purchase tools based on the materials you plan to install, and make sure your crews understand safe and proper operation.

5. Learn How to Estimate Siding Correctly

Roofing and siding estimates are not interchangeable.

Siding estimates require measurements of wall areas, gables, openings, corners, trim transitions, and accessory quantities.

You must also account for waste, labor, removal and disposal, flashing, potential substrate repairs, and jobsite conditions.

Underestimating accessories or labor can quickly turn an otherwise profitable project into a financial disappointment.

A knowledgeable local supplier can help you understand product coverage, accessory requirements, and available material options before you finalize an order.

6. Build a Relationship With a Local Siding Supplier

Your building-material supplier can become an important resource as you expand beyond roofing.

Look for a supplier that understands exterior remodeling, offers appropriate product selections, and can clearly communicate inventory and order timelines.

Suburban Wholesale & Supply serves contractors throughout the Quad Cities, Eastern Iowa, and Western Illinois with a focus on exterior building products.

Learn more about our contractor-focused wholesale business and how a local supplier relationship can support your growth.

7. Review Insurance, Licensing, and Contract Requirements

Before advertising siding installation, confirm that your insurance coverage, contractor registrations, licenses where applicable, and contracts properly address the additional work.

Requirements can differ between Iowa and Illinois and may vary by municipality. Confirm the rules for every jurisdiction in which you operate.

Also review employee training, fall protection, lead-safe renovation requirements for applicable older homes, and procedures for handling unexpected damage discovered during installation.

8. Market Yourself as an Exterior Remodeling Contractor

Once your team is prepared, update your website and marketing materials to explain your expanded services.

Create a dedicated siding services page targeting the communities you actually serve, such as Davenport, Bettendorf, Eldridge, DeWitt, Moline, and Rock Island.

Showcase completed projects with permission, explain the materials you install, and provide homeowners with clear information about your process.

Your strongest marketing message is not simply that you now offer siding. It is that your company can help homeowners coordinate multiple exterior improvements with one contractor.

9. Start Small and Measure Profitability

Begin with manageable siding projects before committing to complex whole-house renovations.

Track labor hours, material waste, installation issues, callbacks, and gross profit on each project.

Use those results to refine your estimating process, crew training, and product selection.

Sustainable growth comes from completing profitable projects consistently, not simply increasing sales volume.