WHOLE HOME GENERATOR INSTALLATION · AUSTIN
Whole Home Generator Installation in Austin, TX
Generac, Kohler, Briggs & Stratton standby installs. Sized to actual load, gas line coordinated, automatic transfer switch programmed.
Keil Electric Austin installs whole-home standby generators across Austin metro from our Round Rock shop. Generac, Kohler, Briggs & Stratton air-cooled units. Load-calc-sized, Austin Energy and PEC-coordinated. TX license #40645, (888) 442-5345.
How to know when it is time, and what to expect.
When to bring us in for whole home generator installation
Most whole home generator installation calls start when the homeowner is planning ahead: a renovation, an addition, an EV charger, a generator, a panel upgrade, or any project where the existing electrical needs to be sized correctly for the new load. The earlier we walk the property, the cleaner the project sequencing. Bringing us in before the drywall closes saves rework. Bringing us in before the contract is signed with the GC saves scope confusion. We are happy to walk a property at the planning stage even if the install is still months out.
What we look at on the first visit
A walk of the property with attention to the panel (age, capacity, available breaker space), conduit accessibility, attic / crawlspace conditions, and the load picture (current loads + planned future loads). For installs that touch the service drop, we factor utility coordination from the start. The estimate we leave with is fixed for the scope as walked. Change orders only happen for genuinely new findings during the work, you hear about them before we proceed.
Austin: Most days we're already in the area. Same-day appointments when capacity allows. After-hours emergencies dispatched when a licensed electrician is available, a real person at the local shop answers and tells you the ETA on the call.
Call nowDemand for standby power across Austin metro has been steady, driven by freeze-event readiness and lightning exposure. Properly-sized backup keeps refrigeration, HVAC, and key lighting running through outage events without the manual generator hassle.
Recent work from the Austin team.
Real installs and service calls across our Austin coverage area.
Permits and inspections
Not every job requires a permit. When the local AHJ requires one, we pull it, schedule the inspection, and stay with the job until it passes. No paperwork on you.
What's covered
Written warranty: 5-year on outlets, fixtures, and EV chargers; 10-year on wire and breakers; lifetime on panelboxes and surge protection. Parts and labor. Transfers with the home.
What is different about whole home generator installation in Texas.
Some of what we do for whole home generator installation is shaped by the codes and conditions specific to Texas. Here is what tends to differ versus other states.
Code adoption in Texas
Texas adopts the National Electrical Code at the state level through the Texas Department of Licensing and Regulation, with most cities in the Austin metro adopting the most recent NEC cycle within a year or two of publication. Round Rock, Cedar Park, Pflugerville, and Austin proper each maintain their own permitting offices with slightly different inspection scheduling and form workflows. We track which cycle each AHJ in our coverage area is currently enforcing, so the scope we write for a job in Cedar Park is current to that city, not just current to "Texas." When a project crosses jurisdictions or sits in unincorporated county, we route the permit through the correct authority and tell you upfront which inspection cadence applies.
Hot-climate considerations
Central Texas summers run long and hot, and that affects whole home generator installation in ways that are easy to underestimate. Panels mounted on west-facing exterior walls run hotter all afternoon. Attic-mounted equipment derates per code because ambient attic temperatures regularly clear 130°F. AC compressors pull near-rated current for hours at a stretch through July and August, which puts more thermal cycling on terminations than the same equipment would see in a milder climate. We size conductors and breakers with that summer load profile in mind, not just the nameplate minimum. On older homes we look closely at terminations that may have loosened from years of heat cycling, those are a common cause of intermittent issues that get misdiagnosed elsewhere.
Severe weather and storm response
The metro sees thunderstorm hail, the occasional derecho, and the post-storm spike in generator and surge-protection demand that comes with each event. We keep enough surge-protection inventory at the shop to swap out a damaged whole-home unit same-day after a strike, and we know which generator and transfer-switch SKUs are realistic to source quickly when the supply chain tightens after a regional event. After the 2021 winter storm we also got a lot more careful about which loads customers actually need on backup, versus which loads end up on the generator only because nobody asked the question at install time.
Cities where we run whole home generator installation.
We dispatch whole home generator installation across the Austin area from our shop. Pick your city for the local page, or "See all cities" for the full coverage list.
Why hiring a licensed electrician matters.
For whole home generator installation, here's the honest comparison. We'd tell you the same thing if we weren't trying to win the job.
A licensed electrician
Unlicensed for electrical
Doing it yourself
Across Austin metro we install standby generators as multi-trade projects: electrical permit, gas-line coordination, concrete pad, automatic transfer switch wiring, controller programming, and commissioning. Total project from quote to turnover is typically 4-8 weeks.
Spread the cost over time.
Pre-approval through Wisetack takes under 3 minutes. Soft credit check, no impact to your score.
- 0% APR for 3, 6, or 12 months (qualifying credit)
- 2–10 year low-interest plans for larger projects
- Soft credit check, takes less than 3 minutes
Financing through our partner Wisetack. Loan terms, APR, and approval subject to underwriting. Not all applicants qualify.
Common questions for Whole Home Generator Installation in Austin, TX
How big a generator do I need?
Depends on what you want to back up. Whole-home backup typically needs 22-26 kW for a 2,500-3,500 sq ft home with central AC. Essential-circuit backup runs 12-18 kW for refrigeration, key lighting, well pump, and partial HVAC. We run the actual load calc.
How much does a whole-home generator cost installed?
Total install cost includes the generator, the automatic transfer switch, the concrete pad, the gas line work, the electrical permit, and labor. We quote in writing after the load calc and site walk.
Will the generator run on natural gas or propane?
Most modern standby generators run on either, with a fuel selector at install. Natural gas is preferred when available. LP requires a tank sized to the runtime expectation.
How loud is a whole-home generator?
Modern Generac and Kohler air-cooled units run around 65-70 dB at 23 feet, similar to an outdoor AC condenser. Liquid-cooled units (larger) are quieter. Setback distance from neighbor windows is part of the placement plan.
How long does the install take?
Total project from quote to commissioning is typically 4-8 weeks, depending on permit speed, gas line scheduling, and pad pour time. The actual on-site install is 2-3 days.
Need whole home generator installation in Austin?
Tell us about the project. A licensed Austin licensed electrician walks the job in person and writes a real scope, backed by our written warranty.