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Standby Generator Replacement in North Alabama & Southern Tennessee

When your standby generator becomes unreliable, outdated, underpowered, or too costly to repair, replacement may be the safest and most cost-effective solution. Valley Services provides professional generator replacement for homeowners across North Alabama and Southern Tennessee, ensuring your new system is properly sized, installed, wired, and integrated with your automatic transfer switch (ATS).

As licensed HVAC and electrical technicians—and a Certified Briggs & Stratton Dealer—we evaluate your current system, discuss your home’s power needs, and recommend the right replacement generator for long-term reliability and performance.

Our Generator Replacement Services

Generator System Evaluation

Before recommending replacement, we inspect your generator’s mechanical, electrical, and control components to determine whether repair or full replacement is the best option. We provide clear, honest recommendations based on safety, cost, and long-term reliability.
  • Performance Testing
  • Load & Capacity Review
  • Age & Wear Evaluation
  • Repair vs. Replacement Comparison
  • Safety & Compliance Assessment

Proper Generator Sizing & Home Power Analysis

Choosing the right generator size is essential. We evaluate your home’s electrical load, appliances, HVAC systems, and outage patterns to ensure the new generator supports your entire home or selected circuits without overloading.
  • Whole-Home Load Calculation
  • Essential Circuits vs. Full Power
  • HVAC & High-Demand Appliance Analysis
  • Future Expansion Planning
  • Customized Generator Recommendations

Removal of Old Generator System

We safely disconnect, remove, and dispose of your old generator and prepare the site for new equipment. Proper removal ensures safe wiring, gas line integrity, and clean installation of the updated system.
  • Safe Electrical Disconnection
  • Fuel & Wiring Removal
  • Equipment Haul-Away
  • Pad or Base Preparation
  • Site Cleanup & Safety Checks

New Generator Installation & Setup

We install your new system according to manufacturer guidelines and local electrical codes. Our team ensures seamless integration with the ATS, proper gas or electrical connections, and correct voltage output.
  • Brand-Compatible Installation
  • ATS Wiring & Setup
  • Fuel Line Connection
  • System Commissioning
  • Voltage & Load Testing

Transfer Switch Upgrade (If Needed)

Older generators often use outdated or incompatible transfer switches. We upgrade your ATS when required to support the new generator’s capacity and features.
  • ATS Compatibility Check
  • 200A / 400A Replacement
  • Whole-Home Transfer Solutions
  • Load Management Options
  • Safety & Code Compliance

Post-Installation Orientation & Maintenance Guidance

After installation, we walk you through operation, maintenance needs, and system features. We also offer annual maintenance plans to keep your new generator reliable for years to come.
  • Homeowner Training
  • Maintenance Recommendations
  • Warranty Registration
  • Startup & Shutdown Procedures
  • Long-Term Service Planning

Why Choose Valley Services for Generator Replacement?

Replacing a standby generator requires a company skilled in electrical systems, HVAC loads, and backup power technology. Valley Services delivers safe, precise, and dependable generator replacement backed by decades of experience.
1Certified Briggs & Stratton Dealer
Factory-trained professionals for installation and commissioning.
2Licensed Electrical & HVAC Technicians
We ensure proper wiring, load handling, and home integration.
3Complete Home Load Analysis
We size your new generator correctly for reliable performance.
4All Brands Replaced
We install Briggs & Stratton, Generac, Kohler, Champion, and more.
5Safe Removal of Old Equipment
Proper disconnection, wiring cleanup, and pad preparation.
6Long-Term Reliability
We test, calibrate, and verify every system before completion.

Generator Replacement Service Area

We provide generator replacement throughout North Alabama and Southern Tennessee, including:

Huntsville Madison Athens Decatur Meridianville Hazel Green Harvest Toney Gurley Ardmore Petersburg Fayetteville Pulaski Lynchburg Shelbyville Lawrenceburg Tullahoma Winchester

If you need help selecting or replacing your generator, call or text—our experts are here to help.
generator replacement service area map

Generator Replacement FAQs


How do I know if my generator needs to be replaced instead of repaired?

Replacement is recommended when your generator is older than 12–15 years, requires frequent or costly repairs, cannot support your home’s electrical load, or has outdated components no longer supported by the manufacturer. We provide a full evaluation and honest repair-vs-replacement guidance.

What size generator do I need for my home?

The correct size depends on HVAC load, major appliances, startup amperage, and whether you want whole-home or essential-circuit coverage. We perform a complete load calculation to recommend the right size generator for your home and usage.

Can you replace my generator with a different brand?

Yes. We replace generators from any brand—Briggs & Stratton, Generac, Kohler, Champion, Honeywell, and more. We ensure compatibility with your transfer switch or install a new ATS if needed.

Will my existing transfer switch work with a new generator?

Sometimes, yes—but older switches may be incompatible or undersized. During replacement, we test your ATS for compatibility and recommend upgrades if needed to ensure safe, automatic operation.

How long does generator replacement take?

Most replacements are completed in a single day, including equipment removal, new installation, wiring, gas or electrical connections, pad preparation, testing, and commissioning.

Can you remove and dispose of my old generator?

Absolutely. We safely disconnect, remove, and haul away your old generator, including wiring, mounts, and unused fuel components. The site is prepared for clean installation of the new system.

Do you handle electrical and fuel line work?

Yes. Our licensed technicians handle wiring, load balancing, breakers, transfer switch wiring, grounding, and fuel connections for natural gas or propane systems.

How long will a new standby generator last?

A properly installed and maintained standby generator typically lasts 12–20 years depending on usage, maintenance, and brand quality. Routine service significantly extends lifespan.

Can I upgrade to a larger-capacity generator?

Yes. If your home has added appliances, HVAC systems, or square footage, upgrading to a higher-capacity generator may be necessary. We evaluate your home’s electrical demand to recommend the correct upgrade.

Do you offer generator maintenance after replacement?

Yes. We provide annual and semi-annual maintenance plans, including oil changes, battery checks, startup tests, and ATS inspections to ensure long-term reliability of your new generator.

Schedule a Generator Replacement Consultation

Call (256) 783-6100 or request service online. We help homeowners across North Alabama and Southern Tennessee choose and install the right replacement generator for long-term protection.
Request Generator Replacement

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