Residential Service

Electrical Service Upgrades & Repairs

Need more power for your modern home? Upgrade from 100A to 200A service, replace aging service equipment, and modernize your electrical system throughout St. Louis and St. Charles County.

5-Star Reviews

1-2 days

Typical Duration

Free

Estimates

Get Free Estimate

(636) 240-2966

What We Provide

100A to 200A service upgrades

Meter base replacement

Service entrance cable replacement

Weatherhead and mast upgrades

Underground service installation

Utility coordination (Ameren)

Load calculations

Grounding system upgrades

Why It Matters

Power modern appliances and EV chargers

Eliminate flickering lights and tripped breakers

Support home additions and renovations

Meet insurance requirements

Prepare for future electrical needs

Increase home value

Signs You Need This Service

Not sure if you need electrical service upgrades & repairs? Here are the warning signs to watch for.

Main breaker trips frequently

Your electrical demand exceeds your service capacity. This is the clearest sign you need a service upgrade.

Lights dim when appliances start

Voltage drop when large appliances start indicates your service can't handle the load. This stresses electronics and wiring.

Meter base is corroded or damaged

Corrosion allows water infiltration, creating fire and shock hazards. Damaged meter bases should be replaced.

Adding major appliances

EV chargers, heat pumps, hot tubs, and shop equipment may require more capacity than 100A service provides.

Planning a home addition

Additions increase electrical load. Upgrading service during the project is more efficient than after.

Home is 30+ years old with original service

Older 100A or even 60A services weren't designed for modern electrical demands. Upgrade for safety and capacity.

Multiple 240V appliances running causes issues

Running multiple high-power appliances (dryer, AC, oven) simultaneously strains undersized service.

Solar or battery backup planned

Solar systems and battery backups like Powerwalls often require 200A service minimum.

What's Included

Transparent pricing with no hidden fees. Here's exactly what you get.

Meter Base Replacement Only

$1,200–$2,500

New 200A meter base
Service entrance cable replacement
Weatherhead and mast (if needed)
All Ameren coordination
Permits and inspection
Power restoration same day

When panel is already 200A but meter base needs replacement

Complete 200A Service Upgrade

$3,500–$6,000

New 200A meter base and service entrance
New 200A main breaker panel
All new circuit breakers
Required AFCI/GFCI protection
Whole-home surge protection
Ameren coordination
All permits and inspections

Full upgrade from 100A to 200A

400A Service Installation

$8,000–$15,000

400A meter base and CT cabinet
Dual 200A panels or 400A rated panel
Heavy service entrance conductors
Utility coordination for 400A supply
Load calculations and circuit planning
All permits and inspections

Large homes with all-electric systems, shops, pools

Get Your Free Estimate

Our Process

1. Load Assessment

A licensed electrician evaluates your current service size, calculates your existing electrical load, and determines what capacity you need based on current and future requirements (EV chargers, heat pumps, additions, etc.).

2. Detailed Quote

You receive a written quote covering the meter base, service entrance cables, weatherhead, panel upgrade (if included), permits, and all labor. We explain exactly what's needed and why.

3. Utility Coordination

We submit the service upgrade request to Ameren, coordinate the scope of work, and schedule the temporary meter disconnect. We handle all utility communication—you don't need to call anyone.

4. Permit & Scheduling

We pull the required electrical permit from your municipality and schedule installation for a date that works for you. Service upgrades require permits and inspection in all St. Louis area jurisdictions.

5. Service Installation

On installation day, Ameren disconnects power. We replace the meter base, service entrance cables, weatherhead, and mast (if needed). If the panel is included, we install the new panel and transfer all circuits.

6. Code Inspection

We schedule inspection with your municipality. The inspector verifies proper installation, grounding, and code compliance. We stay on-site to address any questions immediately.

7. Power Restoration

After passing inspection, we contact Ameren to restore power and install the new meter. Power is typically restored within 1-2 hours of our call. We verify all circuits work before leaving.

Frequently Asked Questions

Common questions about electrical service upgrades & repairs

How long does a service upgrade take?

Most service upgrades take 1-2 days. The utility needs to disconnect and reconnect power, which we coordinate.

Will I be without power?

Yes, typically for 4-8 hours while we replace the meter base and service entrance. We schedule around your needs.

Do I need a service upgrade for solar panels?

It depends on your current service size and solar system capacity. We'll assess and recommend accordingly.

How do I know if I have 100A or 200A service?

Check your main breaker size in your panel. The meter base and service entrance cable size also determine capacity.

Does a service upgrade require a permit?

Yes. All service upgrades require permits and inspections. We handle all permitting and inspections.

What's included in a service upgrade vs panel upgrade?

A service upgrade includes the meter base, service entrance cables, weatherhead, and often a new panel. A panel upgrade only replaces the panel itself.

Will the utility replace my meter?

Yes. Ameren provides and installs the meter at no charge after we complete the meter base upgrade and pass inspection.

Can I upgrade to 400-amp service?

Yes, for large homes with high electrical demands (all-electric, EV chargers, pools, workshops). We'll assess if your utility can provide 400A.