Whole-Home Generators and Battery Backup

Keep the Lights On When the Grid Goes Down

Done installs whole-home standby generators and battery backup systems for Denver-area homeowners. Never get caught without power again. Call 833-539-9153.

Backup Power Solutions

Colorado Power Outages Don't Have to Mean Dark, Cold, Disconnected Nights

Winter storms, high winds, and aging grid infrastructure mean power outages in the Denver metro are a real and recurring problem. A whole-home standby generator kicks on automatically within seconds of an outage — your furnace, refrigerator, lights, and medical equipment keep running without you lifting a finger. Battery backup systems offer a quieter, fuel-free alternative for shorter outages or for powering specific critical loads. Done’s licensed electricians have been installing backup power systems in Colorado homes since 1999, and we’ll help you choose the right solution for your home’s size, critical loads, and budget.

From the transfer switch to the final connection, we handle every part of the electrical installation. See our full electrical services lineup or call 833-539-9153 to schedule a backup power assessment.

  • Automatic Standby Power Whole-home generators sense an outage and start automatically — no running to the garage, no extension cords, no manual switching.
  • Battery Backup Options For quieter, fuel-free backup power, battery systems like the Generac PWRcell store energy and deliver it silently when the grid fails.
  • Whole-Home Coverage We size and install systems that power your entire home — not just a few outlets — so your family stays comfortable through any outage.
A Done electrician uses a meter with red and black leads to test an open exterior electrical panel on an Aurora home.

Is Backup Power Right for You?

Signs Your Home Should Have a Generator or Battery System

Not every home needs a standby generator, but some situations make backup power less of a luxury and more of a necessity.

  • Frequent Winter Outages

    If your neighborhood loses power during major snowstorms, a standby generator means your furnace, water heater, and lights stay on no matter how long the outage lasts.

  • Medical Equipment at Home

    CPAP machines, oxygen concentrators, and other home medical devices cannot safely lose power. Backup power is an essential safety measure, not a convenience.

  • Working from Home

    If an outage means lost income or missed deadlines, a standby generator pays for itself quickly. Keep your internet, devices, and home office running without interruption.

  • Concern About Food and Pipe Loss

    A long outage in winter risks frozen pipes. In summer, a refrigerator full of food can be lost in hours. Standby power eliminates both risks.

What We Install

Backup Power Systems Done Installs and Services

Done installs and services a full range of backup power solutions, sized and configured for your home's specific needs.

  • Whole-Home Standby Generators Natural gas or propane-powered generators that start automatically during an outage and run your entire home. We install and connect the transfer switch, fuel line, and all electrical connections.
  • Battery Backup Systems Whole-home battery systems store energy from the grid or solar panels and discharge silently during outages. Ideal for shorter outages or for pairing with solar.
  • Transfer Switch Installation A properly installed automatic transfer switch is the heart of any standby system. We install whole-home and load-center transfer switches to current code.
  • Generator Maintenance Standby generators need regular exercise and maintenance to start reliably when you need them. We offer service and tune-up visits to keep your system ready.

How It Works

Getting Backup Power Installed in Your Home

From the first call to the final test, Done makes backup power installation straightforward.

  1. Call for a Power Assessment

    Reach us at 833-539-9153. We'll ask about your home's square footage, critical loads, and fuel availability to recommend the right type and size of system.

  2. Load Calculation and System Sizing

    Our electrician calculates your home's critical electrical load to ensure the generator or battery system is properly sized — not underpowered, not wastefully oversized.

  3. Installation and Connection

    We install the unit, run the electrical connections, wire the transfer switch, and coordinate gas line work with your utility if needed. The entire installation is permitted and inspected.

  4. System Test and Walkthrough

    We run a live test of the full system and walk you through how it operates — including how to monitor it and what to do if you ever need service.

Why Choose Done

Same-Day Service

Most service calls handled same-day across the Denver metro — and we answer the phone 24/7.

Upfront Pricing

Flat-rate pricing approved before work begins — no surprises on the invoice.

Licensed & Insured

Fully licensed, bonded, and insured — plumbing, HVAC, and electrical under one roof.

Satisfaction Guaranteed

If it isn't right, we make it right — backed by our workmanship guarantee.

Don't Wait for the Next Outage

Done installs whole-home generators and battery backup systems throughout the Denver metro. Available 24/7 — call 833-539-9153.

What Our Customers Say

Don't just take our word for it — hear from our satisfied customers

S Sue Dunn
Sue Dunn 5 months ago
★★★★★
A very experienced, professional and skilled team of Caedon, Tyler, James and Eli re-wired the main floor of our 100+ year old home when a small electrical fire was found during a diagnostic visit meant to trouble shoot a malfunctioning bedroom ceiling light.

The team was extremely thorough and corrected several wiring errors that had been done over the past 100 years - some due to code changes and some due to shoddy, cutting-corners-work done on a 10 year old remodel. The project took two days, and included breaker panel additions, discovering buried outlets, and eliminating live sections of wire no longer being used. The team cleaned up the work space every day and patched wall areas that were cut in an attempt to locate buried outlets. With every discovery, the situation was explained in depth and at the level where we could understand the issue.

We have used Done for large plumbing, and now, large electrical work and have been 1000% satisfied with every interaction.
A Ashley L
Ashley L 6 months ago
★★★★★
Done is always super quick to send someone out to help me with the problem at hand. Cason was here within an hour or two of the call. She was very professional and took the time to answer all of my questions. She even pointed out several things for me to be aware of/make sure I check regularly to avoid disaster. We have used Done several times so far and will continue to do so, I would highly recommend both Done and Cason. We’ve also really loved working with Dylan, DJ and Aaron (heating).

New Review 12/12/25: Done offers a free electrical inspection for their members and sent Javier out to my house. He was amazing - he encouraged me to follow him around my home during his entire visit so he could teach me about my home, give advice, answer questions, and suggest best practices. It was determined that my 33 year old electrical panel was on its way out and needed replacement. While it wasn't cheap, I felt confident after spending 2 hours with Javier that he knew what he was talking about and that he would take great care in replacing everything correctly and with great attention to detail. Javier is warm, respectful, knowledgable, and makes you feel like family - I will request him for anything electrical in my home from now on and would recommend him to anyone.
T Tom Rhiel
Tom Rhiel 1 year ago
★★★★★
We are so pleased and grateful to have come across Done. The sheathing covering the wiring going into our electrical box had pulled away exposing live wires. We called Done and electricians Jeff and James came out to give us an estimate. This repair is not inexpensive, and Jeff went over all the details of the project, the upgrade to our panel the grounding that would bring our electrical system up to code and the approvals that would be required from the county. We scheduled the work and Jeff and James came back and completed everything in one day. We couldn't be happier. In addition to the professionalism of the two guys they were also very personable and fun. Perhaps personable and fun are not necessarily requirements to getting the work done, those attributes go a long way in making you feel they genuinely care. I would highly recommend Done and we will continue to use them for our electrical and plumbing needs in the future.

Maintenance Membership

Join the Care Club

Total home service care, on a schedule.

Members get priority scheduling, seasonal HVAC tune-ups, an annual plumbing & electrical safety inspection, and exclusive discounts — for less than the cost of a single emergency call.

  • Priority scheduling
  • Seasonal HVAC tune-ups
  • Annual safety inspection
  • Exclusive member discounts
  • Free dispatch on repairs
  • No long-term contracts

Frequently Asked Questions

What's the difference between a standby generator and a portable generator?

A standby generator is permanently installed outside your home, connected to your electrical panel via a transfer switch, and starts automatically during an outage. A portable generator requires manual setup and extension cords and cannot safely connect to your home’s wiring. For whole-home protection, standby is the right choice.

How large of a generator do I need for my home?

Generator sizing depends on your home’s square footage and which circuits you need to power. A whole-home system for a typical Denver-area home generally falls between 14kW and 24kW, but we calculate this precisely based on your actual load — not a rough estimate.

Can a battery backup system power my whole home?

Most current battery systems are better suited to critical loads — furnace, refrigerator, lights, devices — rather than running a whole home indefinitely. For multi-day whole-home coverage, a standby generator is typically the stronger choice. We’ll help you weigh the options honestly based on your situation.

Is a permit required to install a standby generator?

Yes. Generator installations require an electrical permit and in most cases a gas permit as well. Done handles both permit applications and coordinates the required inspections. This protects your home and is required for homeowner’s insurance purposes in most cases.

*Offers cannot be combined with other promotions or applied to dispatch fees. No cash value. Must present offer at time of service. Call for details.
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