Avoid These 5 Expensive Mistakes When Installing a Fence

Thinking of installing a new fence? Whether it’s for privacy, safety, or simply upgrading your home’s curb appeal, a properly installed fence can make a huge difference. But if you’re not careful, one wrong move can cost you thousands. At Coastline Gate Repair, we’ve seen every kind of fence fail — from tilted posts to full replacements — all because of avoidable errors.

If you're a homeowner in Los Angeles, Santa Barbara, Vernon, or anywhere in between, and you're planning a fence installation, this guide will save you money and frustration. Let’s walk through the top 5 mistakes homeowners make during fence installation — and how you can avoid them.

Mistake #1: Ignoring Property Lines and Permits

Don’t Build First, Ask Later

One of the most common fence installation mistakes we see at Coastline Gate Repair is when homeowners skip checking their property lines. You might think you know your boundary, but guessing could get you into legal trouble.

We once got a call from a family in Santa Barbara who had to tear down a brand-new fence because it extended just two feet into a neighbor’s lot. Ouch — and expensive.

Always verify your boundary through your property survey or city records. When in doubt, a professional land surveyor is well worth the cost.

Permits and HOA Rules Are Not Optional

In cities like Los Angeles and communities with active HOAs, you might need permits or approvals before installing a fence. Not knowing this could delay your project or lead to fines. At Coastline Gate Repair, we help our clients handle all the necessary paperwork to ensure a smooth, compliant installation.

Mistake #2: Choosing the Wrong Fence Material for Your Climate

Not Every Material Can Handle California Weather

Fence materials matter — especially in areas like Vernon or Santa Barbara, where exposure to sun, salt air, or seasonal rain can wear down certain fences faster than others.

Wood fences are a popular choice for their natural look, but they require regular maintenance to protect against moisture, termites, and warping. In contrast, vinyl and composite fences last longer with little upkeep and hold up better in harsh weather.

At Coastline Gate Repair, we help you choose a material that works with your specific location, saving you from costly repairs later.

Think Long-Term, Not Just Upfront Costs

Many homeowners choose the cheapest material to save money — only to pay more down the line. Vinyl or composite may cost more upfront, but their long-term durability and low maintenance make them a smarter investment.

Mistake #3: Improper Post Placement and Depth

If the Posts Are Off, the Whole Fence Suffers

This one’s big. Your fence posts are the foundation of the entire structure. If they’re too shallow or unevenly spaced, the fence may shift, sag, or collapse. At Coastline Gate Repair, we recommend posts go at least ⅓ the total height of the fence into the ground — and we always use concrete for stability.

We once corrected a DIY install in Los Angeles where the posts were only set 12 inches deep. The first big windstorm sent the panels tumbling like dominoes.

Leveling Matters More Than You Think

One crooked post will throw off the entire line of your fence. If you want straight, professional-looking results, use string lines and levels — or call the pros at Coastline Gate Repair, where we laser-check everything twice.

Mistake #4: Forgetting About Utility Lines and Drainage

Dig Smart, Not Blind

Never dig without checking for underground utilities. Striking a gas, water, or power line can be dangerous and very expensive. In Los Angeles County, calling 811 before digging is required — and at Coastline Gate Repair, we always contact utility marking services before starting any job.

Drainage Can Make or Break a Fence

If your yard doesn’t drain properly, water can collect around the fence posts. Over time, this causes rot, rust, and even concrete cracking. Our team often uses gravel and proper grading during installs to prevent this problem from the start.

Mistake #5: Not Planning for Function and Future Use

It’s Not Just a Fence — It’s a Lifestyle Upgrade

Before building, ask yourself:

• Do I need privacy?

• Do I want to contain pets?

• Will I need a gate wide enough for vehicles or trailers?

We worked with a homeowner in Vernon who installed a beautiful wood fence — but didn’t account for future backyard access. A year later, they had to remove a section just to bring in a pool.

At Coastline Gate Repair, we help homeowners plan fences that fit their life now and later — including automated gates, removable panels, and custom entryways.

Bonus Tips for a Flawless Fence Installation

Double-Check Measurements Before Cutting

It sounds simple, but it’s one of the easiest and most expensive mistakes to make. A few wrong measurements can waste materials fast. Always measure twice, cut once.

Don’t Go It Alone

Even if you're installing the fence yourself, don’t do it solo. Setting posts and panels requires at least two sets of hands. Or better yet — let the experts at Coastline Gate Repair handle it for you. We install fences every day, and we’ve got it down to a science.

Final Thoughts: Build It Right the First Time

Installing a fence may seem straightforward, but skipping steps or rushing through the process can cost you more than you think. The five mistakes we’ve outlined — ignoring permits, choosing the wrong material, poor post placement, missing utility checks, and lack of planning — are responsible for most fence failures we see.

At Coastline Gate Repair, we’ve helped hundreds of homeowners across Los Angeles, Santa Barbara, Vernon, and beyond build fences that are beautiful, durable, and done right the first time. Whether you’re going DIY and need a few tips, or want a team of pros to take care of everything, we’re here to help.

Contact Coastline Gate Repair Today

Ready to get started? Avoid expensive mistakes and enjoy peace of mind by working with the experts. Contact Coastline Gate Repair for a free consultation and let us help you plan and install the perfect fence for your home.

We proudly serve Los Angeles, Santa Barbara, Vernon, and surrounding areas — and we’d love to earn your trust.