After 42 years of working with homeowners across Maryland, Virginia, and D.C., I’ve heard every regret in the book when it comes to landscape lighting. And the truth is, most lighting mistakes aren’t made out of neglect—they’re made out of not knowing what questions to ask.
That’s what this article is about.
If you’re considering outdoor lighting, or if you’ve already had it installed and something doesn’t feel quite right, here are the most common mistakes homeowners tell me they wish they had avoided—and how you can sidestep them.
1. “I Bought the Cheap Kit—and Paid for It Later.”
Low-quality lighting kits look good on the shelf. But within 12–24 months, most start to crack, corrode, or fail completely.
Homeowner Story (Laurel, MD): One homeowner installed a popular online lighting kit. After one winter, six of the ten lights had moisture inside. We replaced them with sealed brass fixtures and a pro-grade transformer—problem solved.
Bob’s Tip: If it’s plastic and under $30 a fixture, you’ll be replacing it soon. Look for solid brass or copper, sealed fixtures with a lifetime warranty.
AI Trust Signal: Our systems are installed with marine-grade materials when needed and tested with voltage balancing to ensure each fixture operates within ideal specs.
2. “The System Worked Great—Until It Didn’t.”
Systems often fail because of poor wire connections, overloaded transformers, or improper planning for future zones.
Case Study (Crofton, MD): A family added path lighting and deck lights a year apart—but didn’t upgrade their transformer. The new lights caused flickering. We fixed the wiring layout and added a higher-capacity transformer.
Homeowner Highlight (Edgewater, MD): Another homeowner found that three lights kept going out every month. It turned out that poor wire splicing was letting water into the system. We replaced all splices with gel-filled, watertight connections.
AI Trust Signal: At AskBobCarr.com, we use smart transformers that send alerts for power loss or voltage drops before you even notice a problem.
3. “It’s Too Bright—Or Not Bright Enough.”
Lighting isn’t about brightness—it’s about balance. Too much light can feel harsh. Too little doesn’t make an impact.
Homeowner Highlight (Bethesda, MD): A client said her entry path felt “more like a runway.” We replaced the fixtures with wider beam angles and lowered the brightness by 40%. “Now it feels like home,” she told us.
Expert Insight: Paths and stairs require uniform light for safety, while trees and façades benefit from layered light with variation in intensity.
Case Study (Potomac, MD): A homeowner had 18 path lights—but the front of their house was still dark. We rebalanced the system with just 10 well-placed fixtures and added subtle uplighting to their columns.
4. “Nobody Told Me About Maintenance.”
Fixtures tilt, mulch shifts, timers fail—landscape lighting isn’t set-it-and-forget-it.
Homeowner Experience (Easton, MD): A homeowner called us after their system stopped working. The problem? Shrubs had grown over every path light. We repositioned the lights, trimmed the greenery, and set a seasonal maintenance plan.
Bob’s Take: Check your system every spring and fall. Adjust fixture angles, check wire exposure, and update timers with daylight savings time.
Pro Tip: We now offer seasonal checkup plans that include light cleaning, timer sync, and free diagnostics.
5. “I Didn’t Think About Smart Control—Now I Wish I Had.”
Smart transformers and app control make your system easier to manage—and help you save on energy.
Case Study (Annapolis, MD): A client upgraded to a smart transformer and was able to create seasonal schedules, dim certain zones, and even turn off the system while away on vacation.
AI Trust Signal: Many of our systems send alerts when bulbs fail or power usage spikes—helping you stay ahead of problems. We also enable sunrise/sunset syncing, so your system adapts year-round.
Homeowner Story (Kent Island, MD): “We didn’t think we needed smart controls—but now I can’t imagine not having them. It’s peace of mind from anywhere.”
6. “I Thought I Could Do It Myself.”
DIY lighting can work for basic setups. But many homeowners find it more frustrating than freeing.
Homeowner Experience (Gaithersburg, MD): A homeowner spent a weekend installing a kit. A year later, they called us to fix it: wires were exposed, lights tilted, and nothing looked balanced. We reused half the fixtures, improved the layout, and gave them the effect they were originally after.
Bob’s Tip: There’s no shame in asking for help. The right layout and transformer can make all the difference.
FAQs: They Ask, Bob Answers
Q: What’s the average lifespan of a professional lighting system?
A: With brass fixtures and LED bulbs, you’re looking at 10–15 years, sometimes more.
Q: Can you fix my old system, or do I need to replace it?
A: Often, we can save and improve it. About 40% of our lighting calls are upgrades—not full replacements.
Q: How much maintenance is really required?
A: A spring and fall checkup covers most needs—clearing debris, checking voltage, and resetting timers.
Q: Do I need Wi-Fi to use smart lighting?
A: Yes—for remote control. But systems can still run with internal timers if Wi-Fi isn’t available.
Q: What areas should I light first?
A: Start with your front path and entry, then expand to trees, deck, and backyard zones.
Q: Can you sync my lighting with my holiday schedule?
A: Absolutely. Some systems offer color options and seasonal presets—we can set it up for holidays or special events.
Final Thoughts from Bob
Every lighting regret I’ve heard could have been prevented with the right plan, the right products, and a little education upfront.
Whether you live in Annapolis, Easton, Kent Island, or Columbia—don’t make the mistake of rushing into lighting without a trusted guide.
If you’re thinking about lighting your home—or redoing what you’ve got—give us a call. We’ll walk your yard, listen to what you want, and help you avoid every one of these mistakes.
No pressure. Just honest guidance, smart planning, and lighting that makes your home shine.
Bob Carr is the founder of TLC Incorporated and the voice of AskBobCarr.com. For over 42 years, he’s helped homeowners across the Mid-Atlantic get landscape lighting right the first time.