Whole Home Standby Generators of Utah

Backup Power Solutions You Can Rely On

When the power goes out, will your home be ready? At Colonial Building Supply, we provide professional standby generator solutions to keep your home powered, protected, and comfortable. Whether you’re retrofitting an existing home or planning for backup power in new construction, our dedicated generator team delivers expert consultation, code-compliant installation, and reliable service.

We proudly serve Davis, Weber, Salt Lake, Summit County, and all of Utah.

A Dedicated Department for Whole Home Backup Power

While Colonial Building Supply is known for serving Utah’s building industry, we also have a specialized department focused on standby generators. This team is dedicated to providing homeowners with reliable whole home backup power solutions, from the initial consultation to installation and ongoing service.

Qualified Expertise: Our generator specialists are factory-trained and experienced in sizing, installing, and servicing standby generators.

Code-Compliant Installation: We utilize licensed electricians and gas fitters to ensure every installation meets all local, city, and state codes.

Full-Service Convenience: We offer maintenance plans to handle routine service, firmware updates, and system checks—removing the burden from the homeowner and ensuring your generator works when you need it.

If you’re looking for a trusted, qualified team to consult, install, and maintain your home’s backup power system, Colonial is ready to help.

Why Choose Colonial for Backup Generators?

Platinum Kohler Dealer — Highest dealer status in Utah

Authorized Generac & Honda Dealer

Complete Turnkey Installation & Service

Over 200 Generators Sold & Installed

Unmatched Troubleshooting Expertise (100% problem-solved rate)

Unlike other dealers, generators are not a side job for us. Our dedicated team focuses specifically on backup power, providing personal attention and expert service for every project.

Generator Brands We Offer

We proudly sell, install, and service:

Why We Choose Kohler

At Colonial, Kohler is our preferred brand for whole home standby generators. Here’s why:

Built for Commercial, Perfect for Residential: Kohler’s roots are in industrial power systems, ensuring top-tier quality for your home.

Durability & Reliability: Every Kohler generator is tested extensively for long-term performance.

Clean, High-Quality Power: Protects sensitive home electronics with consistent clean output.

Fuel Flexibility: Operates on propane or natural gas, offering versatility.

Industry-Leading Support: As Utah’s highest-rated Kohler dealer, we’re certified for expert installation and service.

We also offer Generac and Honda products to meet a range of budgets and needs, but Kohler remains our top recommendation for homeowners who want the best.

View KOLHER

Why We Choose Kohler

From small homes to larger estates, we offer solutions tailored to your needs:

Whole Home Generators (14-150kW installations)

Essential Load Panels for targeted backup

Natural Gas & Propane Options

Smart, Automatic Power Restoration in 10 Seconds or Less

Installation & Retrofits

We handle the entire process:

Free site visits & consultations

Generator sizing & load assessment (on-site amp testing)

Gas line installation & coordination

Electrical installation by licensed journeymen

Permitting & code compliance

Full startup, testing, and customer walkthrough

New Builds: We coordinate with builders to pre-install transfer switches and gas lines, making future generator installations simple and cost-effective.

Generator Repair & Maintenance

Already own a generator? We offer:

Full service & repair for Kohler and Generac units
Scheduled maintenance plans — $495 annually
Firmware updates & diagnostics
Wi-Fi monitoring & real-time alerts (optional)

Our proactive service ensures your generator is always ready when you need it—without adding to your to-do list.

Service Area

We proudly serve:

Davis County (Centerville, Bountiful, Layton, Kaysville)
Weber County (Ogden & surrounding areas)
Salt Lake County (all cities)
Summit County (Park City & beyond)
Statewide coverage throughout Utah
Select areas of Wyoming, Nevada, and Idaho

Transparent Pricing & Honest Advice

Most whole home standby generator systems range from $12,000–$15,000 turnkey, depending on home size and install complexity. Unlike big box stores, we provide true turnkey solutions, handling every aspect of your installation. No hidden fees, no surprises.

Meet Jeff

Meet Jeff — Head of Colonial’s Generator Department
Jeff leads Colonial Building Supply’s Whole Home Generator Department, bringing a unique combination of mechanical expertise, sales leadership, and customer-first service.

• Over 4 years of experience in standby generators, including sizing, installation, troubleshooting, and maintenance.

• Extensive background in mechanics, with hands-on experience in automotive repair and internal combustion engines.

• Former Vice President of Sales for a national printing company, managing teams across the country.

• Known for his problem-solving expertise, Jeff has a 100% success rate diagnosing and repairing generators across Utah, Idaho, Nevada, and Wyoming.

Jeff’s blend of technical knowledge and people skills makes him the go-to expert for homeowners seeking reliable backup power solutions. He personally consults on every project, ensuring that each customer receives the right solution for their home and budget.