Chapter 02 · EV Charging & Standby Power

Whole-Home Generator Installation, Sized Right for Denver

Licensed, insured, and backed by 468 five-star Google reviews across the Denver metro.

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Generator Installation for Denver Homes

Generator installation in Denver means sizing the unit correctly for your home's actual load, pulling the required permit, and wiring the transfer switch so the handoff from grid to backup power is automatic and safe. All Electric handles all of it under CO License #ME.0600978. Every install is fully permitted and inspected. Our labor carries a 1-year warranty, and you can schedule online or call (720) 951-4619 to get started.

Denver's weather makes this more than a convenience purchase. Front Range storms knock out power across Capitol Hill, Highlands, Stapleton, and Park Hill with enough regularity that homeowners who've been through one outage usually call us before the next season. We serve the full Denver metro and surrounding communities, and we're familiar with the permit process through Denver Community Planning and Development. If you're comparing a generator versus solar panels as a backup option, that's worth a conversation too. We'll give you a straight answer based on your setup.

What Drives the Cost of a Generator Install

The size of the unit, the complexity of the transfer switch, and your existing panel capacity are the three biggest variables.

Honestly, the generator itself is only part of the equation. A whole-home standby unit needs a transfer switch wired between your electrical panel and the generator, and if your panel is already at capacity or is an older model, that work gets done first. We assess load requirements before recommending a unit size, undersizing a generator is one of the more expensive mistakes a homeowner can make, because you find out it's wrong on the night you need it most. Financing is available for larger installs if upfront cost is a concern. Every job is different. Contact All Electric for an accurate estimate.

An electrical panel upgrade with multiple circuit breakers and organized wiring in a residential setting mounted on plywood.

How It Works

Our Generator Installation Process

Step 1: Load Assessment

We calculate your home's actual power needs, HVAC, refrigeration, lights, medical equipment, whatever matters to you. That number determines the generator size. We don't guess and we don't round up to sell you more capacity than you need.
Step 2: Permit and Transfer Switch

All Electric pulls the required permit through Denver Community Planning and Development before any work begins. We wire the automatic transfer switch to your panel so the generator kicks on without you touching anything.
Step 3: Installation, Test, and Sign-Off

We install the generator in a code-compliant location, connect the fuel supply line with a licensed plumber if needed, test the full transfer sequence, and walk you through the system before we leave. Inspection is scheduled as part of the job.

What's Covered

Services Included with Every Generator Install

Load calculation and unit sizing
We match the generator to your real power consumption, not a generic recommendation.
Transfer switch wiring
Automatic transfer switches are wired and tested so the handoff is seamless when the grid goes down.
Permit filing and inspection coordination
We handle the paperwork with Denver's permitting office and schedule the city inspection.
Panel compatibility check
If your current panel needs work before the generator can be safely tied in, we'll tell you up front. Not after we've started.

Generator Maintenance and Repairs

backup generator work, professional service in Denver, CO

Installation is one call. Keeping the generator ready for the next outage is an ongoing relationship. All Electric offers maintenance and diagnostic work on existing standby generators across the Denver metro. If your unit hasn't been tested in a while, or if it ran during the last storm and you're not sure it's fully operational, that's worth a service call. We also handle carbon monoxide detector installation as part of generator service visits. A standby unit that's not properly ventilated is a real hazard, and a detector in the right location is a straightforward fix.

Why Denver Homeowners Choose All Electric

Licensed and Verifiable

CO License #ME.0600978 is publicly searchable. We're not going to ask you to take our word for it.

Backed by 468 Google Reviews

4.9 stars across 468 verified Google reviews. That kind of record isn't built on one good job. It's built on showing up and doing the work right, consistently.

1-Year Labor Warranty

Every installation carries a 1-year warranty on labor. If something we did causes a problem, we come back and fix it. No debate.

Full-Service Electrical Contractor

We're not a generator-only shop. If the install surfaces a panel issue or a wiring problem, we can handle it in the same visit instead of leaving you to coordinate multiple trades.

Financing Available

A whole-home standby generator is a significant purchase. Financing options are available. Ask when you call or book online.

Standard Business Hours, Honest Availability

We work Monday through Friday 5 AM to 9 PM and weekends 7 AM to 8 PM. We won't promise you a midnight crew, but we will show up when we say we will.

Straight from Google

What Denver Homeowners Say

4.9468 verified Google reviews

Got the job done well, pleasant to work with.

Brian NicholsSep 2026 · Google

All Electric is the best! Knowledgeable in fair and troubleshoot till they get the job done, if needed. Highly recommend 🙌🏽

gina dSep 2026 · Google

Fantastic service. They showed up, assisted in the repairs, found the underlying issues and fixed them and then explained what those issues were in a manner that I could understand. Top service, as always.

Sean FrohlingAug 2026 · Google

Same day service! Was here in 3 hours. Very honest and charge was kept at the minimum. Polite service as well.

Fred LudlowAug 2026 · Google

Very responsive. Easy to work with. Would definitely recommend to friends and family.

BritneyAug 2026 · Google

Electrician came out the next day after calling to install two light fixtures. Minimal issues and got them both installed successfully even though we have an old home. Pricing was reasonable to me. I will definitely be using them again for any similar needs!

Jillian L. CallaghanAug 2026 · Google

Awesome service. Quick prompt and very professional and knows the business. Daniel Vargas was the Master Tech. Accessed the problem and was quick to diagnose! Two faulty breakers. Highly recommend.

Michelle BakerAug 2026 · Google

Daniel was great - solution-oriented, super-responsive, knowledgeable and really nice to work with - I will look to Daniel aand All Electric for future needs - thanks!

Travis BoganAug 2026 · Google

Read all 468 reviews

Generator Installation Questions: Denver Homeowners Ask These

Not answered here? Call (720) 951-4619 and ask the electrician.

Do I need a permit to install a standby generator in Denver?

Yes. Denver Community Planning and Development requires a permit for standby generator installations. All Electric pulls the permit before work begins and schedules the city inspection as part of the job. Any contractor telling you it's not required in Denver is either wrong or cutting corners you'll find out about when you sell the house or file an insurance claim.

What size generator do Denver homes typically need?

It depends entirely on what you want to keep running. A basic setup covering lights, refrigerator, and one HVAC unit runs differently than a whole-home system that keeps everything on. Denver homes with gas furnaces have different load profiles than those with electric heat pumps. We calculate your actual load before recommending a unit. That's the only honest way to answer the question. Every job is different. Contact All Electric for an accurate estimate.

How long does a generator installation take in Denver?

Most residential standby generator installations take one to two days once permits are in hand. Permit timelines through Denver's CPD office vary. If your existing panel needs upgrades before the generator can be safely tied in, that adds time. We give you a realistic schedule at the estimate stage. Not after we've already started.

Can my existing Denver home's electrical panel support a standby generator?

Many older Denver homes, especially those built before 1980 in neighborhoods like Park Hill, Congress Park, and Capitol Hill, have 100-amp panels that weren't designed with a generator transfer switch in mind. We check panel capacity as part of every generator estimate. If an upgrade is needed, we'll explain exactly why and what it involves. You can read more about panel upgrades on our service page.

Does All Electric service generators that were installed by someone else in Denver?

Yes. We service and repair existing standby generators across the Denver metro, regardless of who installed them. If a unit wasn't permitted correctly or has transfer switch wiring that doesn't meet current code, we'll identify the issue and tell you what it takes to bring it into compliance. We also recommend pairing any generator service visit with a carbon monoxide detector check given the risks of improperly ventilated units.

Is a standby generator or a solar-plus-battery system the right choice for my Denver home?

Both can provide backup power, but they work very differently and the right answer depends on how long your outages typically last, your fuel access, and your budget. Standby generators run on natural gas or propane and can operate indefinitely as long as fuel is available. Battery systems are quiet and require no fuel but have limited capacity. We've put together a comparison on our blog if you want to read the breakdown before you call.

Schedule Your Generator Installation in Denver

All Electric, CO License #ME.0600978, fully insured, 4.9 stars across 468 Google reviews.

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(720) 951-4619

Mon to Fri: 5 AM to 9 PM
Sat and Sun: 7 AM to 8 PM

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