EXPERT POWER SOLUTIONS IN MCKINNEY, TX AND SURROUNDING AREAS

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Your Local, Family-Owned Generator Experts

Professional Standby Generator Installation in McKinney & Surrounding Areas

Turnkey Home Backup Power Solutions You Can Trust

Cornerstone Power Solutions Company

Welcome to Cornerstone Power Solutions Serving Customers in McKinney and Surrounding Areas

Your Local Experts for Reliable Standby Generator Power.

At Cornerstone Power Solutions, we believe that trust is built on reliability, integrity, and doing the job right the first time. Based in North Texas, we specialize in providing turnkey home backup power solutions—from sales to professional installation—designed to keep your home running smoothly when the grid doesn’t.

Founded by two longtime friends & experienced professionals, Edward Harvey and Adam Remington, Cornerstone is built on a foundation of complementary strengths.

Contact Cornerstone Power Solutions Today For a Free Quote!

No Pressure. Just Honest Advice.

    List of Services

    Complete Backup Power

    From custom standby generator installation and automatic transfer switches to whole-home surge protection, we deliver turnkey power solutions tailored to your home or business.

    Contact us today for your standby generator installation as well as home EV charging systems

    Our Products

    Dependable Backup Power for Every Home

    Standby
    Generators

    Automatic Transfer
    Switches

    About Us

    Built on Trust and Reliability Who We Are and Why It Matters

    Comprehensive Generator Services

    Cornerstone Power Solutions offers end-to-end home generator services, from initial consultation to ongoing support.

    Expert Technicians, Genuine Care

    Our skilled team prioritizes your home’s safety and family’s peace of mind, proactively addressing power outage risks.

    Transparent and Trustworthy

    With honest recommendations and a clear process, We guide homeowners on installing new or replacing old standby generators.

    Why Us?

    Why Choose Cornerstone Power Solutions?

    You can count on Cornerstone Power Solutions — because reliable power starts with a name you can trust.

    Experts in Power, Trusted for Protection.

    Cornerstone Power Solutions provides generators that power your AC, sump pump, appliances, and electronics with reliable, surge-protected electricity.

    Trusted By Homeowners Everywhere.

    Hospitals, nuclear plants, and even the National Weather Service trust KOHLER—Cornerstone Power Solutions brings that same reliability to your home.

    5-Year Premium Limited Warranty

    Cornerstone Power Solutions offers a 5-year, 2,000-hour warranty covering parts, labor & travel, plus a corrosion-proof, long-lasting enclosure.

    Our Process

    Our Turnkey Backup Generator Installation Process

    From your initial consultation to professional installation and ongoing support, we make securing reliable backup power simple, transparent, and stress-free.

    1. Free Consultation
    2. Custom Generator Sizing
    3. Detailed Proposal
    4. Permits & Planning
    5. Professional Installation
    6. Testing & Walkthrough
    7. Ongoing Support
    How We Guarantee Best Pricing

    Best Price on Standby Generator Installation Guarantee

    Blogs

    Latest Blog Updates

    FAQs

    Frequently Asked Questions

    A standby generator ensures uninterrupted power during outages caused by storms, equipment failure, or grid issues. It protects essential appliances like refrigerators, heating/cooling systems, medical equipment, and security systems. Unlike portable generators, standby units turn on automatically within seconds of an outage and can power your entire home for days, offering safety, convenience, and peace of mind.

    standby generator is permanently installed outside your home, automatically activates during outages, and can power everything in your home. It runs on natural gas, propane, or diesel and requires professional installation.

    portable generator is manually operated, typically powers only a few items, and requires refueling, extension cords, and manual startup. It’s useful for short-term or low-power needs but lacks the reliability and ease of a standby system.

    Generator size depends on your home’s power requirements. Do you want to run your entire home or just a few key systems like the fridge, lights, and HVAC? Our team performs a load calculation during your consultation to determine the right unit size based on your square footage, appliance needs, and usage habits. This ensures you’re never underpowered or overspending.

    The installation process usually takes 4 to 7 days, depending on site conditions and permitting requirements. That includes setting the generator, wiring, installing the transfer switch, and performing final inspections. We handle every step from permitting to power-up so you don’t have to worry about coordination or compliance.

    It’s recommended to schedule maintenance at least once per year or after every 200 hours of use whichever comes first. Routine maintenance includes oil and filter changes, battery checks, fuel system inspections, and software updates. Our maintenance plans make it easy to stay on schedule and keep your generator running like new.