Authorized Generac Dealer

MOUNTAIN TOP
GENERATORS

POWER THAT NEVER QUITS

Mountain Top Generator keeps your home, vacation rental, and business powered through every outage — wind, fire, snow, or Edison shutoffs. Located at 5,100 feet, we know the mountains because we live here.

Serving Lake Arrowhead · Running Springs · Crestline · Rim of the World

For New Generator Estimates & Installs — Call or Fill Out the Form

(951) 640-3890

Get a Free Quote View Generators

★WE OFFER FINANCING — CLICK TO LEARN MORE

For Generator Service,
Maintenance & Repair

CALL OR TEXT SY

(442) 438-7273

Generac Trained
Service Technician

Licensed & Insured

Authorized Generac Dealer

Local Mountain Experts

Free Estimates

Service Agreements Available

Mountain Top Generator technician with Generac generator

#1 Selling Brand

In Home Standby Generators

About Mountain Top Generator

YOUR TRUSTED PARTNER IN POWER SOLUTIONS

At Mountain Top Generator, we're more than just a generator supplier — we're your local experts in keeping homes, businesses, and vacation rentals powered, no matter the conditions. Located at 5,100 feet in the mountains, we understand the unique challenges you face: unpredictable outages caused by wind, fire, heavy snow, and Edison's power shutoffs.

As the first in-house Generac supplier in the area, starting in 2025, we're proud to serve Lake Arrowhead, Running Springs, Crestline, and beyond. Our team of licensed professionals handles everything from installation and concrete work to gas lines, electrical setups, and surge protectors.

Fully licensed and insured contractors

Authorized Generac retailers with top-quality equipment

Comprehensive service agreements for ongoing maintenance

The only local experts you can trust to keep your power running

Call Us Today

The People Behind the Power

MEET THE TEAM

Mountain Top Generator is a local, family-run business. When you call us, you're talking to the same people who will show up at your door.

Owner & General Contractor

Jeff Grotewald

Jeff has lived in the San Bernardino Mountains for over a decade and leads every installation personally. His hands-on approach and deep knowledge of mountain electrical systems ensures every Generac is installed right the first time.

Sales & Operations Manager

Lisa Volmer

Whole House Switch

G-Force 1000

Extended Warranty Available

Get a Quote

Not sure which size is right for you? Contact us for a free assessment.

What We Do

POWER SOLUTIONS
FOR EVERY NEED

From homes and vacation rentals to shops and restaurants — we handle everything so you never have to worry about a power outage again.

Generator Installation

Fully installed Generac generators tailored to your property, from site prep to final testing.

Concrete Work

Sturdy, code-compliant concrete pads to secure your generator and meet local building requirements.

Gas Line Installation

Safe and efficient natural gas or propane line setups by licensed professionals.

Electrical Work & Transfer Switches

Seamless integration with your existing electrical system for automatic switchover.

Surge Protectors

Protect your appliances and electronics from damaging power surges during outages.

Service Agreements

Ongoing maintenance and inspection plans to keep your generator running at peak performance.

Our Process

GENERATOR INSTALLATION PROCESS

Simple. Thorough. No Surprises. — Everything is planned upfront so you get accurate pricing and a system built specifically for your home.

Step 01

Quick Phone Call

We start with a short call to understand your needs

Size of your home
What equipment you want powered during an outage
Helps us begin sizing your system properly

Step 02

On-Site Consultation

We schedule a visit to your home where we:

Determine the correct generator size
Identify the best location for installation
Evaluate pad requirements
Review trenching and electrical needs
Assess your property — every home is different

Step 03

Detailed Quote

After the visit, we prepare a formal written quote and email it to you. Once approved and a 50% deposit is received, we:

Order your generator
Schedule your installation
Most projects take 30–45 days start to finish

Step 04

Installation & Walkthrough

When your system is complete, we:

Perform a full job walk
Show you exactly how everything works
Make sure you're confident and ready before we leave

No Guesswork

Everything is planned upfront

Accurate Pricing

No surprises — ever

Built for Your Home

Every install is custom to your property

CALL (951) 640-3890 REQUEST A QUOTE

Power your home. Protect your family.

Generator Repairs & Maintenance

CALL SY WILLIAMS

Generac Trained Service Technician — Repairs & Maintenance

(442) 438-8273

For all generator repair & maintenance calls

5,100ft

Elevation — We Live Here

Local Generac Supplier Since 2025

100%

Licensed & Insured

24/7

Generator Monitoring via MobileLink

Customer Reviews

HAPPY CUSTOMERS,
HAPPY MOUNTAIN

"I was very impressed with the Generator installation process. The team was efficient, professional, and always kept me informed of the progress. They did an excellent job and I would highly recommend them to anyone."

Sarah Johnson

Mountain Community Resident

"The Generator installation process was smooth and hassle-free. The team was very professional and took care of everything, so I didn't have to worry about a thing. I highly recommend this company."

Richard Wilson

Mountain Community Resident

"The customer service I received was exceptional. They were always available to answer my questions and made sure I was completely satisfied with the final result. I'm so happy with my new generator."

David Brown

Mountain Community Resident

Where We Work

OUR SERVICE AREA

We serve the entire Rim of the World corridor — from Valley of Enchantment to Green Valley Lake. If you live on the mountain, we've got you covered.

Lake Arrowhead

Our home base — full service available

Running Springs