Service Panel Upgrades in Kalispell

Old or overloaded panels can't keep up with modern homes. We replace outdated electrical panels with safe, properly sized systems built to handle today's power demands across the Flathead Valley.

Licensed, insured, and review-backed

5

Communities Served in Flathead Valley

10+

Residential Electrical Services Offered

100%

Code-Compliant Installations

About Us

Why Panel Upgrades Matter

Many homes in Kalispell and Whitefish still run on panels installed decades ago. As families add EV chargers, generators, and smart home devices, those older panels get pushed past their limits. J. Thomas & Son Services upgrades panels to meet current electrical loads and code requirements, giving your home a safer foundation to build on.

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Service benefits

What Our Panel Upgrades Include

Every upgrade is planned around your home's actual power needs, not a one-size-fits-all install.

01

Full replacement of outdated or undersized panels

02

Upgrades to 200-amp service for modern demands

03

Circuit breaker organization and labeling

04

Support for EV chargers and generator transfer switches

05

Code-compliant grounding and wiring updates

06

Panel relocation when needed for safety or space

Testimonials

Service Panel Upgrades Reviews

Recent customer feedback about service panel upgrades services.

5.0 • 12 reviews
Google ReviewsLeave us a review

We did a remodel, J Thomas & Son Services came in on a mission to get job done before our anniversary party. They finished the job a full week ahead of schedule. Great service !! If you need anything to a ceiling fan or…

Owner reply

Reading your review truly made our day! We loved being part of your remodel journey and are so glad we could help you…

Michael Lynn profile

Michael Lynn

2026-02-23

After calling multiple electricians in the area that said they couldn't help me for two weeks he made time the same day when our power went out. He found the issue in 30 minutes and had it fixed within an hour. Thank…

Owner reply

Thank you so much, Kimberly! I'm glad I was able to make time for you right away — that's what we aim for here at J.…

kimberly taylor profile

kimberly taylor

2026-07-04

Joe is always willing to help as soon as possible. We had a tough job that was originally wired in a very "creative" way. Joe figured out the issues in no time. Very professional, but when he leaves, you feel like…

Owner reply

Thank you so much, Jaimie. You and your family could not have been any better to me. Y’all are truly a blessing.

Jamie Buttram profile

Jamie Buttram

2026-05-16

Had Joe help me with an electrical issue that had been bothering me for months, he was very knowledgeable and professional, would recommend to friends and family 👍🏼

Jesse Slesar profile

Jesse Slesar

2026-04-09

Quality, professional work at the right price. Incredibly pleased is an understatement. We couldn't be happier, and will be using Joe on many future projects.

Ronakov Renovations profile

Ronakov Renovations

2026-04-08

If you’re looking for someone who does incredible work and truly cares about their customers, I highly recommend Joseph! He did a fantastic job on my 100 year old home and took the extra time to go in depth and clearly…

Liza Bryan profile

Liza Bryan

2026-03-31

Our Approach

How a Panel Upgrade Works

We keep the process straightforward from the first call to the final inspection.

01Step 1

Home Electrical Assessment

We evaluate your current panel, wiring condition, and household power usage to determine the right size and setup for your home.

02Step 2

Upgrade Plan and Quote

You get a clear plan outlining the panel size, scope of work, and pricing before anything is scheduled or installed.

03Step 3

Panel Installation

Our team removes the old panel and installs the new system, rewiring circuits as needed to meet current code.

04Step 4

Testing and Walkthrough

We test every circuit, confirm proper labeling, and walk you through the new setup so you understand what changed and why.

Frequently asked

Panel Upgrade Questions

Get clear answers about service panel upgrades, preparation, timing, maintenance, and what to expect before requesting an estimate.

Q1

How do I know if my panel needs an upgrade?

Signs include frequent breaker trips, flickering lights, a fuse box instead of breakers, or a panel rated below 100 amps. If you're adding an EV charger or generator, an upgrade is often required.

Q2

What size panel do most Kalispell homes need?

Most modern homes benefit from a 200-amp panel, which supports central AC, EV charging, and larger appliances without overloading the system. We size each upgrade to your specific home.

Q3

How long does a panel upgrade take?

A typical panel upgrade takes one day for most residential homes. Larger homes or those needing significant rewiring may take longer, which we outline during the assessment.

Q4

Will my power be shut off during the upgrade?

Yes, power to the home is turned off for safety while the old panel is removed and the new one installed. We schedule this to minimize disruption and restore power the same day whenever possible.

Q5

Do I need a permit for a panel upgrade?

Panel upgrades typically require a permit and inspection to meet local code. We handle the permitting process as part of the job so you don't have to navigate it yourself.

Q6

Can you upgrade my panel for an EV charger or generator?

Yes. Many older panels don't have capacity for EV chargers or generator transfer switches. We size the new panel to support both current needs and future additions.

Q7

Do you serve homes outside Kalispell?

We install and upgrade panels throughout Whitefish, Columbia Falls, Bigfork, and the greater Flathead Valley, along with Kalispell.

Q8

Do I need a full panel replacement, or can my existing panel be repaired?

Not every panel issue requires a full replacement. We can assess the condition of your panel, breakers, labeling, grounding, and available capacity, then recommend the most practical and safe solution—whether that is a repair, a tune-up, or a complete upgrade.

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Ready to Upgrade Your Panel?

If your home's electrical panel feels outdated or maxed out, reach out to schedule an assessment. We'll help you find the right upgrade for your household's needs.