Generator Installation in Allen, TX
Allen, TX is known for its excellent schools, parks, and family-friendly communities. Grasten installs and services standby generators here from our Dallas facility, part of our Dallas service area.
Allen Outage History
Why Allen Homeowners Act
Winter Storm Uri in February 2021 left about 90,000 Oncor customers in Collin County without power on the afternoon of February 16, many for days in subfreezing cold. The May 28, 2024 storms knocked out power to more than 650,000 Oncor customers across North Texas in one day. Three days later about 6,200 Collin County customers were still without power. The March 2, 2023 storms left 46,855 Oncor customers in Collin County without power that evening, out of 280,159 across North Texas.
Allen at a Glance
Power Outage Profile
The local details that shape your install: who runs the grid, who issues the permit, and which gas partners are in your area.
Oncor owns the poles and wires in most of Allen and restores outages; the city's Severe Weather Center also lists CoServ Electric and the Grayson-Collin Electric Cooperative for parts of town. Oncor customers choose a retail provider; co-op members do not.
The City of Allen Building and Permitting Division receives and processes every permit application through its Citizen Self-Service portal. Grasten pulls the permit with a licensed electrician and schedules the inspections.
Atmos Energy's Mid-Tex Division and CoServ Gas both run mains in Allen; your gas bill says which. Streets without a main use a propane tank.
Winter Storm Uri, February 2021: about 90,000 Oncor customers in Collin County were without power on the afternoon of February 16, many for days in subfreezing cold.
Why Allen Chooses Grasten
What Makes Us Different
Multi Brand Dealer
Allen homes run on different fuel depending on the street: Atmos Energy mains on some, CoServ Gas on others, a propane tank where neither reaches. As a Generac, Kohler, Cummins and Briggs & Stratton dealer, we size the unit around what your gas bill shows.
Four Brands, One Recommendation
12 Year Power Plus Warranty
The 12-Year Power Plus Warranty covers labor, travel, parts and major components on Generac air-cooled units, a $1,499 value at no extra cost. Allen is about 17 miles from our Dallas facility, which books the yearly maintenance visit that keeps that coverage active.
12 Years of Full Coverage
Customized Mobile Fleet
Winter Storm Uri left about 90,000 Oncor customers in Collin County without power on February 16, 2021. Outages that size are why our vans carry the parts that fail most, so a technician can finish the repair on the first visit.
Ready to Roll
Typically 30 to 90 days from estimate to power on, depending on City of Allen permit timelines. Grasten pulls the permit with a licensed electrician and schedules the inspections. See all six differentiators and the full process on the Dallas page ›
Allen Pricing
What Does a Generator Cost in Allen?
A whole home generator in the Dallas-Fort Worth metro costs $7,000 to $25,000+, installed. Here's where most Allen homes land.
Essential circuits (lights, fridge, AC unit)
Most homes under 3,000 sq ft (full house)
Larger homes, multiple HVAC zones
Large homes, home offices, medical equipment
Prices include equipment, in-house installation, transfer switch, City of Allen permit fees, and our 12-year warranty. Where a Atmos or CoServ gas main reaches your street, a natural gas connection typically adds minimal cost compared with a propane tank installation.
Because Grasten Power installs with our own crews instead of subcontractors, we cut out the outside markup that pushes installation costs higher at other companies. As a multi brand dealer, we match you with the unit that fits your home and budget rather than the only one on the shelf. The result is a higher quality installation at a fair price.
Dallas Hub
Part of Our Dallas Region
Full pricing guide, the four-brand comparison, and the complete regional FAQ.
Also Serving Near Allen
Also serving Wylie, Prosper, Princeton and the rest of Collin County.
Frequently Asked Questions
Allen Generator Questions, Answered
Do I need a permit to install a generator in Allen?
Yes. The permit comes from the City of Allen Building and Permitting Division, Community Development, at 305 Century Parkway, and the city receives and processes all permit applications through its Citizen Self-Service portal. An Allen address outside the city limits goes through Collin County Development Services in McKinney (Citizen Self-Service portal). Grasten pulls the permit with a licensed electrician and schedules the inspections.
What knocks out power in Allen?
Spring and summer storms with straight-line wind and hail, the occasional tornado, and the kind of winter event that took the ERCOT grid down statewide. Winter Storm Uri in February 2021 left about 90,000 Oncor customers in Collin County without power on the afternoon of February 16, many for days in subfreezing cold. The May 28, 2024 storms knocked out power to more than 650,000 Oncor customers across North Texas in one day. A standby generator starts on its own within seconds and runs until Oncor restores service.
Is natural gas available at my Allen address?
Often, yes. Atmos Energy or CoServ Gas serves Allen, each on its own streets, so check your gas bill. Where there is no gas main on your street, the generator runs on propane from a tank on your property. We confirm which applies during the free estimate.
Will my Allen HOA allow a whole home generator?
Many HOAs require architectural approval before installation. Grasten Power prepares the application package and goes through the review process for you, so you are not chasing board approvals on your own.
How fast can Grasten reach Allen for repairs?
Allen is served from our Dallas facility at 10840 Sanden Dr B, about 17 miles away. Our service vehicles are built out for first visit repairs and stocked with the parts that come up most, and our dispatch runs 24/7 with a live phone.
Get Started
Prepare Now Before the Next Storm
Free Allen estimate. We pull the permits, then install and service your generator.