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When storms hit or the power grid goes down unexpectedly, your home should still feel like a safe haven. A whole-home generator isn’t just a backup—it’s peace of mind, comfort, and control when the unexpected happens. Whether you’re looking to power a few essentials or keep your entire home running, choosing the right generator is an investment in your family’s safety and daily routine.

At GAC Services, we’ve helped Maryland homeowners make smart, stress-free decisions about backup power for over 50 years. From sizing and fuel selection to installation and support, our team is committed to professional, people-first service—going above and beyond to ensure your generator meets your needs today and into the future.

Here’s what you need to know to make the right choice.

1. Choosing the Right Generator Size

One of the most important decisions you’ll make is the size—or more specifically, the capacity—of your generator. Too small, and it won’t handle the demand. Too large, and you could be paying more than necessary.

Looking to Power the Essentials?

A smaller standby generator may be enough if you’re just looking to keep the basics running during short outages, such as:

• Refrigerator and freezer
• Internet modem/router
• Lighting in key rooms
• Medical equipment
• A few kitchen appliances

Smaller systems typically cost less, take less time to install, and are easier to maintain.

Need Whole-Home Power?

For those who work from home, have medical devices, or just want full functionality regardless of the weather, a whole-home generator is the way to go. These units:

• Power your HVAC system, major appliances, and electronics
• Automatically kick in during an outage
• Can run continuously for long periods

How to Size a Generator Correctly

We recommend a professional load calculation to account for both your current needs and future upgrades. Some considerations include:

• Total wattage of the devices you want to support
• Starting wattage surges from items like air conditioners
• Potential additions like pools, electric car chargers, or home expansions

At GAC, we bring more than you expect—we use in-home evaluations and detailed load assessments to make sure your generator fits your lifestyle perfectly.

2. Selecting the Best Fuel Type

Your choice of fuel affects the generator’s performance, cost, and long-term maintenance. Here are the most common options:

Natural Gas

If your home is already connected to a gas line, this is typically the most convenient and low-maintenance option.
 Pros:

• No refueling required
• Continuous power supply
• Low emissions

Considerations:

• Not available in all areas

Propane

Propane is an excellent alternative for homes without access to a gas line.
 Pros:

• Long shelf life
• Clean-burning
• Easily stored in tanks on-site

Considerations:

• Requires regular refills
• You’ll need space for a fuel tank

Diesel

Diesel generators are powerful, reliable, and best suited for long-term outages or homes in rural areas.
 Pros:

• Fuel efficient
• Long-lasting engines
• Easy to store fuel safely

Considerations:

• Typically higher upfront investment
• May need a larger footprint for fuel storage

Still not sure? GAC’s knowledgeable technicians will help you weigh the pros and cons based on your home, preferences, and local utilities.

3. Generator Installation: What to Expect

Installing a standby generator is more than a drop-and-go operation. It’s a coordinated project that involves permits, electrical work, and careful planning.

Step 1: Site Assessment & Power Evaluation

We start with a thorough evaluation of your electrical panel, home layout, and power demands. This helps us determine the ideal location and unit size for your needs.

Step 2: Permits & Compliance

GAC handles all necessary local permits and code compliance. With decades of experience working across Montgomery, Frederick, Howard, and Carroll Counties, we ensure everything is done right the first time.

Step 3: Professional Installation

Our licensed electricians and certified installers complete most generator installations in one to two days. After that, we test the entire system to guarantee reliable performance before we leave.

Backed by our tradition of excellence and unwavering customer satisfaction, GAC stands behind every installation with craftsmanship you can trust.

4. Why Choose a Standby Generator?

Unlike portable models, standby generators are installed permanently and power on automatically when an outage occurs. They’re wired directly into your home’s electrical system and are designed to operate seamlessly—whether you’re at home or away.

Benefits Include:

• Instant, automatic activation
• No manual refueling or messy cords
• Powers HVAC, sump pumps, home offices, and security systems
• Seamless integration with smart home technology
• Boosts home resale value

For families, remote workers, and homeowners with medical needs, a generator provides peace of mind and uninterrupted comfort.

Frequently Asked Questions

Q: How much does a standby generator cost?
A: Generator systems typically range from $5,000 to $15,000 based on power capacity, fuel type, and installation complexity. At GAC, we offer transparent pricing and flexible options to fit your budget.

Q: Can a generator power my entire house?
A: Yes! A properly sized and installed generator can power everything from your HVAC system and major appliances to lights and electronics.

Q: How long can a generator run during an outage?
A:

• Natural gas: As long as the supply lasts—virtually unlimited
• Propane or diesel: Several hours to multiple days, depending on tank size

Q: How often should a generator be serviced?
A: We recommend annual maintenance, which includes testing the unit, inspecting fuel systems, checking batteries, and replacing filters as needed. Regular servicing ensures your system is ready when you need it most.

Why Maryland Homeowners Choose GAC Services

At GAC, we know that choosing a generator is about more than just equipment—it’s about feeling secure in your home, no matter what the weather brings. For over five decades, we’ve provided dependable, expert service grounded in our core values:

• People First: We build trust by treating our customers and team like family.
• Bring More Than You Take: Every visit is an opportunity to deliver more than expected.
• Leadership at All Levels: Every GAC team member is empowered to do what’s right for you.
• Whatever It Takes: From planning to post-install support, we go the extra mile.
• Win the Day: Every project is a chance to do our best work—and it shows.

When you choose GAC, you’re not just getting a generator—you’re getting a partner dedicated to keeping your home safe, powered, and prepared for anything.

Ready to Take the Next Step?

Don’t wait for the next outage to leave your home in the dark. Let GAC Services help you find the perfect backup power solution, sized and installed for your needs.

Call today or schedule your free consultation online—our experts are here to guide you every step of the way, with honest advice and dependable solutions you can count on.

GAC Services – Creating Happy Customers Since 1970