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Top Residential Electrical Contractor in The Black Hills

Keeping your projects moving forward.

We are the Black Hills leading experts in new construction wiring.

Powering new homes, multi-family developments, and residential electrical services with craftsmanship you can trust.

Residential

New Builds

Lighting

Generators

EV

Panels

Upgrades

Residential Electrical

Safe, clean residential electrical work for new homes, service upgrades, panel swaps, EV chargers, lighting, and generator installations. Built to code, and finished by crews trusted on custom home projects.

hexagon LED lighting installation

Commercial Projects

We have a reputation of excellence. In our community, contractors can instantly tell Wires R Us has been on site leaving clean, easy to inspect quality work each and every time. 

Whole home generators by WRU in Rapid City, generator maintenance checklist, residential generator installation

When people look for a generator backup system, EV charger, or solar set ups and need a installer that will do it right, on time, and without a fuss, they call us. We easily explain and kindly help.

Real Reviews From Builders & Homeowners

What Builders &
Homeowners Say

4.9  average
20 Google Reviews
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"I highly recommend Caulder. He surpassed our expectations. Punctual, extremely polite, and his vast knowledge quickly impressed us. He diagnosed our problem very quickly and with great professionalism."

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"The very first job WRU did was our job so many years ago. I have no idea how many jobs they have done for us since. They are the most efficient and proficient electrical company around. Highly recommended!"

RELIABLE, PROFESSIONAL & EFFICIENT

Smooth Predictable Process Everytime

Reliable Scheduling

We show up on time, communicate proactively, and keep your project moving.

Clean Workmanship

From rough-in to finish, our job sites stay clean, safe, and organized.

Professional Results

Fast, code-compliant work from electricians who take pride in their craft.

Apartment Units Completed

0+

with more to come

Homes Wired

0+

and counting

Maintenance Services

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and ongoing

You got questions. That's why we're here.

Yes. We offer financing through Affirm on whole home generator installations, as well as on EV charger installations and larger electrical projects, so you can move forward without paying the full cost up front. Approval and terms are handled through Affirm when you check out.
We install and service Briggs and Stratton and Generac standby generators. We choose equipment based on build quality, reliability, and the parts and service support available here in the Black Hills.
Yes. We install and service Generac standby generators alongside Briggs and Stratton. If you already have a preferred brand or model, we can work with it. If not, we will recommend a unit sized to your home and budget.
Yes, and it is one of the smartest upgrades a rental owner can make in the northern Black Hills. A winter outage can take down heat, water, Wi-Fi, and Starlink at a vacation rental, which quickly turns into refund requests and negative reviews. A whole home standby generator keeps the property running automatically, so your guests stay comfortable and the vacation continues.
We install backup and standby generators across the Black Hills, including Rapid City, Box Elder, Deadwood and Lead, Sturgis, Belle Fourche, Spearfish, and Hot Springs.
It depends on your home's electrical load and which circuits you want to keep running. Some owners want true whole home coverage, while others prioritize essentials like heat, water, refrigeration, and internet. We assess your panel and usage, then size the standby generator so it runs what matters most without being oversized.
Yes. A permanently installed standby generator monitors utility power around the clock. When the power fails, an automatic transfer switch safely disconnects from the utility and starts the generator within seconds, then switches back and shuts the generator down when power returns. No manual startup and no extension cords.
Sometimes. Older homes and smaller electrical services may need panel or service work to support a whole home generator and transfer switch. We check for this during the estimate so there are no surprises during installation.
Cost depends on the size of the generator, your home's electrical load, and site conditions like fuel connection and placement. We provide a written quote after assessing your home, and financing through Affirm is available so the investment can fit your budget.
A portable generator has to be found, fueled, started, and run outside with extension cords, and it carries a real carbon monoxide risk. A whole home standby generator is permanently installed, runs on natural gas or propane, and starts automatically. It is safer, far more convenient, and protects the home even when you are away.
Yes. A standby generator needs simple routine maintenance to stay reliable when you need it most. We service the systems we install and can walk you through what to check through the year.
We keep a running list of the questions Black Hills homeowners ask most about backup power. Browse our whole home generator questions, or contact us for a quote specific to your home.

Building the Future of The Black Hills

Electrical crews that stay organized, communicate clearly, and deliver clean, code-driven work at scale.

Explore EV & Generator Options

Affirm

Upgrade now. Pay over time.

Whether you're installing a standby generator, upgrading your electrical panel, or adding an EV charger, simple monthly payments through Affirm can help make your next project more affordable.

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We serve the entire Black Hills region, including

Our Recent Projects Highlights