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Generac home standby generator installed by Grasten Power at a Dallas, Texas home

Whole Home Generator Installation · Dallas, Texas

Dallas’s Multi Brand Generator Specialists

Grasten Power installs whole-home generators from Generac and Kohler across the Dallas-Fort Worth metro. 24/7 live phone support and a 12-year warranty that nobody local can match.

20,000+

TX Installs

12 Yr

Warranty

20+ Yrs

Serving Texas

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4.6★

997 Reviews

WHY DALLAS HOMEOWNERS ACT

Dallas’s Power Outage Reality

Dallas sits on the same ERCOT grid as the rest of Texas, which means the city has a different kind of power risk than most of America. It’s not hurricanes here, it’s a combination of severe summer storms, the occasional violent tornado, and the kind of winter event that took the grid down statewide in 2021.

Oncor runs the wires across Dallas Fort Worth. When Winter Storm Uri hit in February 2021, ERCOT pushed the grid past failure and Dallas neighborhoods went days without power in subfreezing temperatures. In October 2019, an EF3 tornado tore through Preston Hollow and Lake Highlands, shredding substations and lines block by block. May and June bring straight line wind events most years, with 80 mph gusts knocking out service across whole zip codes.

The day to day risk in Dallas is less dramatic but happens more often. A pop up severe thunderstorm with hail and high wind can take a neighborhood offline for hours. A standby generator starts on its own within seconds and runs until Oncor restores service. Whether the outage lasts an hour or a week.

2024

SPRING DERECHO AND STORM SEASON

May and June 2024 brought repeated straight line wind events across the Dallas Fort Worth metro. Outages lasted from hours to multiple days.

2019

EF3 TORNADO NORTH DALLAS

Preston Hollow and Lake Highlands took a direct hit. Hundreds of thousands lost power, some for over a week.

2021

WINTER STORM URI ERCOT BLACKOUT

The week the ERCOT grid failed at scale. Dallas went days without power in record cold.

80+

SEVERE THUNDERSTORM DAYS PER YEAR

North Texas runs one of the highest severe weather counts in the country. Most Dallas outages come from routine storms, not the big events.

Severe Texas weather over power lines, the kind of storm that causes extended outages

Spring 2024 Storms: Through May and June 2024, repeated straight line wind events swept the Dallas Fort Worth metro and knocked out power across whole neighborhoods for hours to days.

WHY DALLAS CHOOSES GRASTEN POWER

What Makes Us Different

Plenty of companies install generators across Dallas Fort Worth. Here’s what makes Grasten Power different, and why it matters when the next tornado warning hits or ERCOT issues a conservation alert.

01

MULTI BRAND DEALER

Most companies install one brand. Grasten Power is authorized for Generac, Kohler, Cummins, and Briggs & Stratton. That means we recommend the unit that fits your home, not the only one on our shelf.

FOUR BRANDS, ONE INSTALLER

02

24/7 LIVE PHONE SUPPORT

When your power is out at 2am during an ice storm, you reach a real person, not a voicemail box or an overseas call center. Our dispatch runs around the clock, every day of the year.

REAL HUMANS, ALWAYS ON

03

12 YEAR POWER PLUS WARRANTY

Every liquid cooled installation comes with a 12 year warranty, the longest coverage offered in this market. We back it because we install with our own crews and service with our own fleet.

LONGEST WARRANTY AVAILABLE

04

CUSTOMIZED MOBILE FLEET

Our service vehicles are built out for first visit repairs and stocked with the parts that come up most. When a major storm hits, our crews stay in the metro and work through the volume instead of leaving you waiting.

FIRST VISIT FIX

05

OUR OWN CREWS, NEVER SUBCONTRACTED

Every install is performed by Grasten Power employees: licensed electricians, gas technicians, and installation specialists. One point of accountability from the first call through every service visit after.

NO SUBCONTRACTORS

06

GENERATOR SPECIALISTS

Generators are what we do. Every technician, every truck, and every process is built around standby generator installation and service. In a market full of generalists, specialization is the difference.

GENERATORS ONLY

Your Installation Process

Start to finish, getting a standby generator installed in Dallas takes 30 to 90 days. Most of that’s permitting through City of Dallas Building Inspection. Grasten Power runs every step so you don’t end up on hold with the city.

01

02

Permitting and Preparation

Grasten Power handles every permit application for the municipalities we serve. All we need from you is a signed Notice of Commencement and a property survey. We manage the building, electrical, and gas permits from there.

03

Installation Day

Your install is done entirely by our own in-house team of licensed electricians, gas technicians, and installation specialists. They are Grasten Power employees, not subcontractors. Most installations are finished in a single day.

04

Testing and Training

We test the complete system, including the automatic transfer switch and full load performance. Then we walk you through how it works, set up remote monitoring, and make sure you are comfortable with the unit before we leave.

05

Ongoing Service

Annual maintenance plans, 24/7 emergency repair, and warranty service, all handled by Grasten Power crews and our mobile service fleet. Common parts are stocked locally, so you are not waiting on a shipment when something comes up.

DALLAS PRICING GUIDE

What Does a Generator Cost in Dallas?

A whole home generator in Dallas costs $7,000 to $20,000 and up, installed. The number depends on unit size, fuel source, and a couple of site specifics.

Generator SizeBest ForBasic Installed Cost*
11 to 14 kWEssential circuits (lights, fridge, AC unit)$7,000 to $10,000
18 to 22 kWMost homes under 3,000 sq ft (full house)$10,000 to $14,000
24 to 26 kWLarger homes, multiple HVAC zones$13,000 to $17,000
36 kW+Large homes, home offices, medical equipment$17,000 to $25,000+

Included in that price: the equipment, our installation crew, the automatic transfer switch, City of Dallas permit fees, and the 12 year Power Plus warranty. If you’re on Atmos Energy gas, connecting to the existing line is straightforward and inexpensive. The estimate assumes a fuel source is already at the property.

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.

FINANCING AVAILABLE

Grasten Power offers flexible financing for qualified Dallas homeowners. Most installations can be financed with monthly payments under $150.*

  • 0% financing options available
  • Fast approval process
  • No prepayment penalty
  • Covers full installation cost
Power Plus Warranty

Exclusive Power Plus Warranty
12 Years of Full Coverage

Every Generac air-cooled installation we do includes the full 12 year Power Plus Warranty at no extra cost, covering parts and labor for 12 full years beyond the standard manufacturer warranty.

  • 12 Years Full Coverage, Parts & Labor
  • Included at No Extra Cost on Every Install
  • Exclusive to Grasten Power, Longest Warranty in Texas
  • Transferable, Adds Value When You Sell Your Home

CHOOSING YOUR GENERATOR

Comparing Your Options for a Dallas Home

Grasten Power is one of the few dealers in the Dallas metro authorized to install and service all four major brands. Here’s how Generac, Kohler, Cummins, and Briggs & Stratton compare for Texas homeowners.

Generac Whole Home Generator

GENERAC

The most widely installed whole home generator brand in the United States. Generac offers the broadest range of residential standby units (11kW to 24kW+ air-cooled) and a mature remote monitoring platform (Mobile Link). Strong parts availability and the largest dealer network make Generac the practical choice for most Texas homeowners.

View Generac Generators

Kohler Whole Home Generator

KOHLER

Known for quieter operation and premium build quality. Kohler residential generators are often preferred by homeowners who prioritize noise levels (especially relevant in denser neighborhoods and HOA communities). Commercial-grade engineering translated into residential units.

View Kohler Generators

Cummins Standby Generator

CUMMINS

Industrial-grade engineering scaled for the home. Cummins backup generators carry the same engine heritage that powers commercial fleets, with sizing options that comfortably cover larger Texas homes, multi-HVAC properties, and homes with elevators or pools. Diesel and natural gas configurations available.

Briggs Standby Generator

BRIGGS & STRATTON

Value-tier standby generators built by one of the most established names in residential power. Briggs & Stratton units are a strong fit for homeowners who want reliable backup at a lower entry price, or who only need to cover the essential circuits of a smaller home.

Your free estimate covers all four brands against your specific home, neighborhood, and HOA. We don’t make more money selling you one over another, so the conversation stays about which unit actually fits your property best.

INDUSTRY RECOGNITION

Recognized by Generac for Outstanding Service

Texas’ #1 Winning Generac Generator Installer

Solo Prestige

Prestige Dealers represent Generac’s top tier of dealers, meeting the highest standards for certification, customer satisfaction, and service commitment. These industry-leading dealers provide fast response times and extensive expertise, delivering the highest level of care and expertise to homeowners purchasing and maintaining a Generac generator.

DALLAS HOMEOWNER QUESTIONS

Frequently Asked Questions

The questions Dallas homeowners ask us most often before they schedule a free estimate.

What does a whole home generator install cost in Dallas?

$7,000 to $20,000 turnkey is the honest range, and most Dallas installs come in around the middle. A 22kW Generac air cooled unit on a 2,500 square foot home is the most common configuration we put in across the metro. That number includes the generator, the transfer switch, the gas and electrical hookup off an existing Atmos Energy line, City of Dallas permits, and our 12 year Power Plus warranty. Price climbs for larger homes, longer runs from the panel, a service upgrade, or a new gas line. The free on site estimate gives you an exact number for your address, no obligation.

Who pulls the permit, and how long does it take?

Grasten Power pulls every permit. The city requires building, electrical, and mechanical (gas) permits through Dallas Building Inspection. We submit the application, schedule the inspections, and handle any HOA architectural review (relevant in Highland Park, Preston Hollow, and most of the gated communities north of LBJ). From you, we need a signed Notice of Commencement and a property survey. Approval normally runs 10 to 21 business days. Storm season backlogs sometimes stretch that.

Who services the unit after it’s installed?

The same crew that installed it. Grasten Power runs our own service fleet across Dallas Fort Worth, with mobile vehicles stocked with the parts we use most. Our dispatch runs 24/7 with a live phone (real humans, not an answering service). Most Dallas customers enroll in an annual maintenance plan at installation. It keeps the unit healthy and keeps the 12 year warranty active.

Who pulls the permit, and how long does it take?

Grasten Power pulls every permit. The city requires building, electrical, and mechanical (gas) permits through Dallas Building Inspection. We submit the application, schedule the inspections, and handle any HOA architectural review (relevant in Highland Park, Preston Hollow, and most of the gated communities north of LBJ). From you, we need a signed Notice of Commencement and a property survey. Approval normally runs 10 to 21 business days. Storm season backlogs sometimes stretch that.

What size unit fits a typical Dallas home?

For homes between 1,800 and 3,500 square feet, a 22kW or 24kW air cooled unit handles the load. The big draw is AC. A Dallas July afternoon is hard work for the system, and the generator needs to keep up with the air conditioning, the kitchen, lighting, and the pool pump or well. Larger homes (4,000+ square feet), multiple HVAC zones, or a generator that also needs to run an elevator move you into 26kW or above, and Cummins becomes a real option there. The free estimate includes a load calc so the unit matches the house.

Will my Dallas HOA require sign off before installation?

If you’re in Highland Park, Preston Hollow, Lakewood, or a master planned community in Far North Dallas, almost certainly yes. The HOA usually wants a placement plan, screening or landscaping around the unit, and confirmation that the generator stays under their decibel limit (55 to 65 at the property line is common). Grasten Power prepares the application package and goes through the review process for you. You’re not chasing board approvals on your own.

Should I go natural gas or propane in Dallas?

Most Dallas homes on Atmos Energy run natural gas. It’s the easier setup: no fuel tank on the property, no delivery schedule, and the generator pulls off the same line that feeds the rest of the house. If your address doesn’t have natural gas service, propane is reliable but adds the cost of a 250 to 500 gallon tank and a fuel delivery contract. We look at both during the estimate and tell you straight which one makes sense for your property.

How fast is the install once everything is approved?

On site, one to two days. The first day is the concrete pad, setting the generator, and running the electrical and gas connections plus the transfer switch. The second day, if needed, is commissioning, testing, and the homeowner walkthrough. The 30 to 90 day total timeline is mostly permitting and inspection scheduling with the city, not actual labor. The work moves fast once permits are in hand.

How loud are these generators?

55 to 65 decibels, which is dishwasher volume. Kohler is the quietest of the four brands by a few decibels, which is the reason it’s a common choice in Highland Park and other neighborhoods with strict noise rules. The weekly self test runs 5 to 10 minutes, normally during business hours. During a real outage, the whole street is dark anyway and the generator humming next door is the least of anyone’s complaints.

How does this work in a tornado or severe storm?

All four brands are engineered to withstand high wind. The unit sits on a concrete pad anchored against gusts. After a major event, what tends to fail isn’t the generator itself, it’s downed lines or a damaged transfer switch, both of which our service team can handle. If a storm damages the unit, our 12 year Power Plus warranty covers parts and labor for the full 12 years. If it’s storm or hail damage to the housing, we document it and get you a repair estimate within 48 hours so the insurance claim moves.