When the power goes out, everything stops — your lights, Wi-Fi, heating, and even your morning coffee.
That is why more Colorado homeowners are turning to whole-house generators for reliable, automatic backup power that keeps your home running when the grid goes down.
At The Generator CO, we specialize in professional generator installation, repairs, and maintenance across the Denver and Colorado Springs metro areas.
Here’s everything you should know before installing a whole-home generator.
What Is a Whole-House Generator?
A whole-house generator (also known as a standby generator) is a permanently installed backup power system that automatically activates when utility power fails.
It connects to your home’s electrical panel and a fuel source such as natural gas or propane, providing seamless power to your home’s essential systems within seconds of an outage.
Depending on the model, your generator can power anything from key appliances — refrigerators, lighting, and medical equipment — to your entire HVAC and electrical system.
Why Colorado Homeowners Need a Whole-House Generator
Colorado’s unpredictable weather — from high-altitude snowstorms to summer lightning and wind — makes power outages a common challenge.
Installing a standby generator ensures you stay comfortable, safe, and connected when the grid goes dark.
Key Benefits:
- Prevents frozen or burst pipes during winter storms
- Keeps refrigerators and freezers running to avoid food loss
- Powers life-saving medical devices
- Maintains heating and air conditioning systems
- Increases home resale value
- Operates automatically and safely
- Provides peace of mind year-round
For most homeowners, a generator is more than a convenience — it’s a safeguard for your property and family.
Choosing the Right Generator Fuel Type
Your fuel choice affects cost, efficiency, and maintenance. At The Generator CO, we most often recommend natural gas or propane systems for Colorado homes.
| Fuel Type | Features | Approx. Cost/Hour* |
|---|---|---|
| Natural Gas | Affordable, no refills needed, connected to utility line | $1–$3 |
| Propane | Clean-burning, renewable, requires tank storage/refills | $10 |
| Diesel | High energy output, easy maintenance, local fuel delivery needed | $5–$7 |
| Gasoline | Widely available, high maintenance, not ideal for whole-home systems | $12 |
*Based on average residential generator operating at full load.
Portable vs. Standby Generators
Portable generators are compact and useful for limited emergency power — but they can only run a few appliances at a time.
Standby generators, on the other hand, automatically restore power to your entire home. They’re installed permanently outside, connected to your home’s fuel and electrical systems, and ready to activate within seconds of an outage.
For full-home protection and comfort, a standby generator is the superior option.
Whole-House Generator Cost in Colorado
Pricing depends on your home size, generator capacity, and installation requirements. Most Colorado homeowners spend $1,600–$8,900, while larger homes or full-system setups may cost up to $20,000+.
| Generator Size | Average Cost (Materials Only) | What It Powers |
|---|---|---|
| 1–6 kW | $500–$1,800 | Lights, fridge, freezer, small appliances |
| 7.5–10 kW | $2,000–$3,500 | Essentials plus furnace fan and sump pump |
| 14–18 kW | $4,000–$5,500 | Essentials plus A/C and hot water heater |
| 20–24 kW | $5,000–$6,500 | Full home coverage with major systems |
| 26–32 kW | $6,500–$15,000 | Large homes, multiple HVAC units |
| 36–48 kW | $14,000–$21,000 | Large estates or light commercial use |
Our licensed technicians can evaluate your total wattage needs and provide a personalized quote.
Generator Installation Process
Installing a whole-house generator requires electrical expertise and local permit compliance. Here’s how we handle the process at The Generator CO:
1. Site Selection
We select a location that:
- Meets code clearance requirements (4 ft from walls, 3 ft from flammable materials)
- Is away from windows and vents
- Lies close to electrical and gas meters for efficient connections
2. Foundation Preparation
A level base is installed using gravel or concrete to support the generator and protect it from dirt and moisture.
3. Professional Installation
Our certified electricians connect your system to your electrical panel, fuel line, and transfer switch — ensuring it activates automatically and safely during outages.
4. Testing and Inspection
Every installation is tested for full power load and safety, then inspected per local Colorado regulations.
Questions to Ask Before Installation
- What size generator does my home need?
- Which fuel type is most cost-effective in my area?
- Do I need any electrical panel upgrades?
- What type of transfer switch should I use — automatic or manual?
- Will I need permits or inspections?
Our experts can answer all of these during your consultation and handle permitting on your behalf.
How to Prepare for Your Installation
To make the installation process smooth:
- Choose a clear, level outdoor space near your utility meters
- Decide on your preferred fuel source
- Inform your installer about underground lines or uneven terrain
Is a Whole-House Generator Worth It?
Yes — especially for Colorado homeowners who experience frequent outages or rely on electric heating systems. A whole-house generator provides protection, comfort, and long-term value.
- A 1,500 sq. ft. home typically requires 15–20 kW
- A 2,500 sq. ft. home usually needs 20–25 kW
Our technicians will perform a complete load calculation to recommend the best size for your property.
Trust The Generator CO: Certified Generac Installers in Colorado
At The Generator CO, we handle everything — from system sizing and permitting to professional installation and annual maintenance. Our certified Generac installers ensure your backup system performs when you need it most.
We proudly serve:
- Denver Metro Area
- Colorado Springs
- Castle Rock, Littleton, and surrounding communities
Get a Free Quote Today
Be prepared for the next outage. Contact The Generator CO today for a free estimate on professional whole-house generator installation and reliable home backup power solutions.
October 30, 2025