Leonard Splaine Top Mistakes to Avoid When Installing a New Home Generator

When summer storms roll through Northern Virginia, power outages become a frustrating reality for many homeowners. Investing in a home generator is a proactive way to protect your comfort, safety, and peace of mind during power outages. However, like any major home upgrade, installing a generator requires careful planning and expertise. Avoiding key mistakes can mean the difference between reliable backup power and costly problems down the road.

At Leonard Splaine we’ve seen it all—from improperly sized units to DIY disasters. If you’re considering adding a generator to your home, here are the top mistakes to avoid and how to do it right from the start.

1. Choosing the Wrong Size Generator

One of the most common mistakes homeowners make is underestimating or overestimating the size of the generator they need. A generator that’s too small won’t power all your essentials, while one that’s too large will waste energy and increase your installation and fuel costs.

Solution: Schedule a professional load analysis. Our team at Leonard Splaine will help you determine what systems and appliances you want to back up—like HVAC, refrigerator, sump pump, lights, and outlets—and match you with the perfect generator size for your needs and budget.

2. Ignoring Local Codes and Permits

Generator installations must follow strict local building codes, zoning regulations, and HOA guidelines. Skipping permits can lead to fines, project delays, forced equipment removal, or unsafe installations.

The Solution: Partner with a licensed professional who knows the local codes. Leonard Splaine takes the guesswork out of permitting—we handle the entire process and ensure your generator installation meets all safety and municipal requirements in Northern Virginia.

3. Poor Placement of the Generator

Where your generator is installed matters more than many realize. It must be placed at a safe distance from doors, windows, vents, and combustible materials. Poor placement can lead to carbon monoxide issues or violate fire codes.

Solution: Our trained technicians follow best practices for generator placement, ensuring the unit is not only safe and code-compliant but also protected from flooding, debris, and other environmental hazards.

4. Overlooking Fuel Supply and Storage

A generator is only as reliable as its fuel source. Whether you’re using natural gas, propane, or diesel, improper fuel setup or planning can limit the generator’s effectiveness during extended outages.

Solution: Let our experts review your available fuel options. Leonard Splaine will guide you on selecting the most efficient and readily available fuel source for your area and ensure it’s connected and stored safely.

5. Attempting a DIY Installation

Installing a generator involves electrical work, plumbing (for gas lines), and code compliance—all areas where mistakes can have serious consequences. DIY attempts may void your warranty, lead to dangerous errors, or result in a non-functional system when you need it most.

Solution: Always choose a certified professional. Our licensed and experienced installers are trained to handle every aspect of generator installation, from site prep to final testing.

6. Skipping Routine Maintenance Plans

Even the best generator needs regular maintenance to stay reliable. Filters, fluids, batteries, and electrical connections must be inspected regularly—especially after months of inactivity.

Solution: Ask Leonard Splaine about our generator maintenance programs. We’ll ensure your system stays in peak condition and is always ready for the next power outage.

7. Failing to Integrate with Your HVAC System

Your generator should be capable of powering your home’s HVAC system, especially during hot and humid Virginia summers. Not planning for this can leave your family uncomfortable—and your investment incomplete.

Solution: Our team specializes in HVAC and generator integration. We’ll ensure your backup power solution is capable of running your cooling system to keep your home livable, even during long outages.

Expert Generator Installation across Northern Virginia 

We understand the importance of a seamless, code-compliant generator installation that protects your family year-round—especially during unpredictable summer storms. From selecting the right generator to placing it correctly, fueling it safely, and maintaining it year-round, our experienced team is here to guide you every step of the way. Contact Leonard Splaine today to schedule a consultation and find the right generator system for your home.  Call us now at 571-513-6017 or visit our website to schedule your in-home estimate.