How Do I Know If My Hardie Siding Was Installed Correctly?

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When considering installing James Hardie siding on your home, it’s crucial to partner with a siding contractor who is experienced with James Hardie building products and is factory trained for its installation. The quality of installation plays a significant role in the longevity and appearance of your siding, making it essential to understand the key factors involved in determining if Hardie siding was installed correctly.

Importance of Hiring a Skilled Contractor

It is common to see cases where contractors unfamiliar with James Hardie attempt to install it without adequate expertise. However, becoming proficient with Hardie siding requires more than just a day’s practice. Therefore, it’s essential for consumers to work with contractors who have in-depth knowledge of the product and its specifications. Hiring a skilled contractor ensures a smoother installation process and enhances the overall outcome, providing peace of mind for homeowners.

Understanding James Hardie’s Warranty

James Hardie offers one of the best warranties in the business, boasting a non-prorated 30-year warranty that is transferable. However, this warranty is only valid if the siding has been installed correctly. It underscores the importance of ensuring proper installation techniques to uphold the warranty’s terms and protect your investment in your home. Homeowners should carefully review the warranty details and ensure that their siding installation meets the manufacturer’s requirements.

Proper Installation Techniques

As a former James Hardie regional manager, part of the responsibility involved training contractors and installers on the correct installation methods. At Hawthorne Home Exteriors, every project adheres to James Hardie’s installation requirements and often exceeds them. Proper installation techniques are crucial for the siding to perform as intended and maintain its durability over time. Homeowners should inquire about the contractor’s experience with Hardie siding and verify their qualifications before proceeding with the installation.

Common Mistakes in Installation

Several common mistakes can compromise the integrity of Hardie siding installation. Examples include inadequate flashings behind butt joints, leaving gaps between seams, and failing to secure the siding to studs every 16 inches. These errors can lead to sagging, board misalignment, and ultimately, a subpar appearance. Avoiding such mistakes requires expertise and attention to detail. Homeowners should inspect their siding carefully and address any installation issues promptly to prevent further damage.

Importance of the Installer

While the quality of the Hardie siding itself contributes to 30% of the project’s outcome, the remaining 70% depends on the installer’s skill and precision. An experienced installer understands the intricacies of working with Hardie siding and employs techniques to ensure a flawless finish. Partnering with a reputable installer is key to achieving the desired aesthetic and maximizing the longevity of your siding. Homeowners should research potential contractors thoroughly and request references to verify their track record of successful installations.


Determining if Hardie siding was installed correctly requires a thorough understanding of proper installation techniques and attention to detail. By working with a skilled contractor who is familiar with James Hardie products, consumers can ensure that their siding not only looks great but also functions optimally for years to come.

For any inquiries or assistance regarding Hardie siding installation, feel free to contact us. Your satisfaction and the longevity of your siding are our top priorities. Remember, investing in proper installation upfront can save you from costly repairs and ensure your home maintains its curb appeal for years to come.

Mark Moore

Mark Moore

Founder & CEO