How To Install Hardie Siding Around Windows

If you are among the numerous people thinking of having Hardie siding installed in your home,this post is for you. You do not need to bother about the product deteriorating because it’s long-lasting and waterproof. Nonetheless, you need to be well informed on the right installation procedure for Hardie siding to ensure that you do it well once and forever. Nothing is overlooked.

In this article, you will learn about installing Hardie plank siding around windows. Some might say, “the best window installation company near me might not be competent enough.” In retrospect, the only way to know is to be sure of the process. Read on to know the steps involved.

Steps to Follow When Installing Hardie Plank Siding Around Windows

Installing Hardie siding around windows is not that long of a process. However, you will need some tools before starting. It only takes a few simple steps to install Hardie siding around your windows like an expert.

Steps To Follow

1. Ensure you have all you need

Make sure all necessary supplies and equipment are available before you call the contractor to begin this project. After gathering all the necessary materials, the following step should be arranging and organizing them.

Your preparedness should also be detailed. You must know and indicate the number of trim pieces you will need, the window sizes, your budget, and the paint for finishing. Remember, Proper Preparation Prevents Poor Performance.

2. Examine the Current Condition of Trims

To begin, the existing trim needs to be removed. A knife will do nicely. You must be careful; cutting only between the wall junction and trim is required. Not following this might cause damage to your caulk and wall paint job. Pull out any leftover nails or dirt once the trim has been removed.

3. Take Exact Trim Dimensions

Take exact measurements of the window before cutting your trim. Professionals mark out the signs on the board with pencils and verify your measurements about 2-3 times after. So, watch out for that. Once the boards have been cut, there is no going back…well, other than going to the store to get a new one.

4. Cutting The Trim

After double-checking (and triple-checking) the measurements, choose your best saw and go all in. Choosing a saw made precisely for the materials, you have to minimize inaccurate cutting dust. A standard saw is recommended. Also, do not fail to recall to put on your safety equipment before you begin cutting.

5. Installing The Trim Correctly

Ensure you inspect your Hardie trim for any potential damage before prepping it for installation.

To make the trim lay flat, begin fastening it with two-inch 16-gauge nails every 16 inches. To avoid liquid buildup on your siding, provide a quarter-inch space between the window and the trim.

Place the top post over the two vertical blocks, ensuring that it is extended at the bottom. You can now use the shims to create an even wall and flange.

6. Protect The Flashing

After installing the board, you must check your flashing to ensure it complies with your local building code. This will keep rainfall or liquid from entering your home. Flash the openings vertically and horizontally for the best results.

7. Caulking and sealing

The next step is to caulk all trim sides where they meet the siding. Here you use a caulk gun and aim at a 45-degree angle. Remember not to wipe away extra caulk since top-notch caulk sets without assistance.

8. Finalize

The final option is to paint your siding. Ensuring that it is adequately adjusted might save you from repainting it regularly. You may paint before or after installing the siding.


If you need a Hardie siding installation company, type “best window installation company near me” and check out their portfolio. This will help you make your decisions. All Seasons

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