Trusted Whole-Home Power Backup
PowerShield Pro specializes in professional standby generator installation, maintenance, and repair for homeowners across the greater Southwest. Stay comfortable and safe when the grid goes down.
From sizing and installation to annual tune-ups, we handle every aspect of your backup power system.
Our certified technicians handle full standby generator setup — transfer switch wiring, natural gas or propane connection, and load panel integration — so your home switches to backup power automatically.
Regular service plans keep your generator ready when you need it most. We inspect oil levels, filters, battery health, coolant, and run load tests to catch issues before they become problems.
Generator acting up? Our technicians carry common parts on every truck and offer rapid diagnostics to get your system back online fast — often the same day you call.
We install and service ATS units that sense grid failures within seconds and transfer power to your generator without any manual action required from you.
Not sure what size you need? We perform a full electrical load analysis of your home so you get exactly the right capacity — no more, no less — protecting your investment.
Outages don't wait for business hours. Our emergency line connects you with a live technician around the clock, ensuring you're never left in the dark when it matters most.
How It Works
We know that navigating generator options can feel overwhelming. PowerShield Pro has refined a straightforward four-step process that gets a reliable standby system installed at your home with minimal stress and zero guesswork on your part.
Transparent, flat-rate packages designed to match the size and complexity of your home. No hidden fees.
Essential
Ideal for smaller homes up to 1,800 sq ft needing essential circuit coverage.
Whole-Home
Covers 2,000–3,500 sq ft homes with automatic whole-home backup power.
Premium
Engineered for homes over 3,500 sq ft, multi-zone estates, and high-demand loads.
We let the experiences of our customers speak for themselves. Here's what a few of them had to say.
"After three back-to-back monsoon outages last summer, I finally called PowerShield Pro. The team was thorough, explained everything clearly, and the installation was done in one day. We haven't noticed a single outage since — the generator kicks in before I even put down my coffee."
"I appreciated how honest they were about sizing. Other companies tried to sell me a bigger unit than I needed. PowerShield Pro did a proper load assessment and recommended the right system for my house. Pricing was fair and installation was clean and professional."
"The annual maintenance service alone is worth signing up for. They found a worn-out battery during a routine check — could have been a real problem during an outage. Their technicians clearly know what they're doing, and the response time when I had a question was impressive."
Fill out the form and one of our project coordinators will reach out within a few hours to discuss your needs and arrange a free on-site assessment at a time that works for you.
No obligation — just honest advice from a qualified technician.