How can I extend the height of my existing fence?

Extending the height of an existing fence is a great way to increase privacy, enhance security, and improve the look of your outdoor space. With some planning and the right materials, this project can usually be completed in a weekend. Here are some quick answers to common questions about extending fence height:

What are the benefits of making my fence taller?

The main reasons homeowners choose to extend their fence height include:

• More privacy – Taller fences block views from neighbors or passersby
• Enhanced security and protection – A taller barrier helps keep unwanted people and animals out of your yard
• Improved aesthetics – Upgraded fencing can make your landscaping look more polished and intentional
• Increased value – Investing in fencing updates can boost your home’s curb appeal and resale value

What materials do I need to extend my fence height?

The supplies needed will depend on your existing fence material and the extra height you want to add. Generally, you’ll need:

• Fence boards, panels, or pickets to match current style
• 4×4 fence posts
• Deck screws or galvanized nails
• Concrete or fast-setting cement
• Post hole digger or power auger (for digging deeper post holes)
• Sand or gravel
• Carpentry tools like a saw, drill, level, etc.

You may also need additional hardware like post caps or decorative finials. For added stability with a much taller fence, using metal posts instead of wood is recommended.

How high can I build my fence?

Most residential fence height regulations limit fences to 6 feet high or less. However, some municipalities allow taller barriers up to 8 feet. Check your local zoning laws before starting any fencing project. If permitted, keeping fence extensions under 8 feet is recommended for safety and ease of construction.

What are the steps to extend my existing fence?

Completing this project involves careful planning, precise measurements, and good DIY skills. The basic process includes:

1. Remove any existing fence panels, boards, or pickets from the posts.
2. Dig new post holes that are 2-3 feet deeper than your original holes using a power auger or post hole digger.
3. Fill the deeper holes with a few inches of gravel for drainage.
4. Cut 4×4 posts to the desired height, allowing room for setting them deeper into the ground.
5. Set and level the posts in the holes, bracing temporarily.
6. Mix concrete and pour into holes around posts. Allow concrete to fully cure before moving on.
7. If needed, cut new fence boards, pickets, or panels to size.
8. Reattach fencing to posts using deck screws or galvanized nails.
9. Add decorative post caps.

Take your time measuring, cutting, and installing each section correctly. Having a helper makes this large project much easier.

Should I remove my old fence before extending it?

In most cases, yes. Trying to overlay new fencing right on your existing footprint won’t allow for properly bracing taller posts. Starting fresh makes installing deeper posts and anchoring them in concrete simpler. However, if your current fence is in great shape, an alternative is using wood or metal extension brackets to attach new tops to each post.

How much does it cost to raise fence height?

On average, expect to spend $15-25 per linear foot in materials when extending fence height. Labor can add $5-10 more per linear foot if you hire a professional. The total depends on factors like:

• Fence length
• Fence material (wood, vinyl, chain link, etc)
• Added height
• Post size and type
• Concrete and gravel
• Removal and disposal fees if taking down old fencing

For a 100 linear foot wooden privacy fence extended from 6 to 8 feet tall, your total costs would likely be around $2,000-$4,000.

What kind of foundation do I need?

For sturdy support when significantly increasing fence height, new 4×4 posts should be set 2-3 feet into a concrete foundation. Digging post holes for this depth, filling the bottom with gravel for drainage, and encasing the posts fully in concrete prevents leaning, wobbling, and other issues over time.

Should I get a permit?

Before extending fence height, check with your city about permit requirements. Many areas require permits when:

• Fences exceed 6 feet tall
• New fences are installed or old ones replaced
• Materials other than chain link are used (like wood privacy fences)

Applying for the proper permits ensures your project meets all safety codes and zoning restrictions. Failing to get a required permit can lead to fines or even removal of your fence.

How can I save money?

Some ways to reduce costs on a fence extension project include:

• Shop sales and bargain outlets for fencing materials
• Rent or borrow tools instead of buying
• Use shorter metal posts sunk in concrete instead of super tall wood posts
• Install the fencing yourself instead of hiring a contractor
• Buy ready-to-install panels instead of building sections from scratch
• Reuse any undamaged sections of your old fence

Simple DIY kits can save thousands over a custom fence installation. Just be sure to accurately measure and design first to order the right amount of supplies.

Conclusion

Extending fence height is a big project, but following crucial steps will set you up for success. Measure carefully, get proper permits, dig deep post holes for a concrete foundation, and brace as you go. Invest in quality materials and take a methodical approach to install your upgraded fencing securely. In just a weekend or two, you can gain extra privacy and style with a taller barrier surrounding your property.