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Avatar for Absolute Electrical, Heating & Cooling, LLC
Absolute Electrical, Heating & Cooling, LLC
4.3(
328
)
Fixed Generator - Install

Serving Lafayette, CO and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Absolute Electrical did a great job of installing our QuietCool fan. They were very professional, thoughtful (quietly closed front door as they went in and out) and cleanly (thoroughly cleaned work area). I would recommend them to any of our neighbors and friends."
Mini Split
Heated driveway
Furnace Inspection
Laying conduit for exterior electrical work
Electrical Panel Replacement

+34

Response time1 day
1 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for DN Electric LTD
DN Electric LTD
5.0(
7
)
Portable Generator - Install

Serving Lafayette, CO and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

DN ELECTRIC LTD proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today! \n

Electric
Avatar for Blue Sky Plumbing & Heating Inc.
Blue Sky Plumbing & Heating Inc.
5.0(
6
)
Fixed Generator - Install

Serving Lafayette, CO and surrounding areas

Approved

In business since 1989

Free estimates

Small jobs welcome

Blue Sky Plumbing, Heating, Cooling & Electric is a fourth-generation, family-owned home service company proudly serving the Denver Metro area since 1916. For over 100 years, our team has delivered trusted plumbing, HVAC, sewer, drain, electrical, and indoor air quality solutions with a commitment to honest service and long-term customer relationships.\n\nAs a locally owned company, we combine modern expertise with generations of hands-on experience to provide reliable repairs, installations, maintenance, and emergency services for homeowners across Colorado. Customers choose Blue Sky for our highly trained technicians, transparent communication, same-day availability, and dedication to doing the job right the first time.\n\nFrom routine plumbing repairs to complete heating, cooling, and electrical upgrades, Blue Sky is committed to delivering comfort, safety, and peace of mind to every home we serve.

Photos
73 neighbors recently requested a quote
Redrocks Roof and Solar LLC
4.1(
9
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Lafayette, CO and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"First-rate service with a personal touch! Itâ s hard to find this kind of care and attention anymore when looking for home repairs. We needed our roof redone and a bunch of electrical repairs. Redrocks Roof and Solar worked with us every step of the way to make sure we were completely satisfied while respecting our budget. They also worked diligently with our insurance company to make sure that nothing was left out of our estimate. Robert and Brooke definitely go the extra mile on everything!"
Response time1 day
Response rate89%
Recommended by75%of homeowners
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Generator Install questions, answered by experts

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

The Lafayette, CO homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.