Panel repair · Wichita & Sedgwick County · 67037
Derby has grown faster than most of the metro, and growth means additions. Finished basements, sunrooms, shops and detached garages get added here at a high rate, and additions are where subpanels appear without permits.
40 min
Typical arrival
67037
Derby zip
Subpanels
Most common fault source
$0
Travel charge in the county
Tell us the street and roughly when the house was built and we can usually narrow the likely cause before anyone gets in a truck. Derby splits into established 1960s and 1970s housing and post-2000 subdivisions, and the panels tell you which you are standing in.
In the established parts, 1960s and 1970s boards with the services and makes of that period, including split-bus designs and some obsolete makes. In the newer subdivisions, 200 amp services with modern protection.
Cutting across both is the addition. A finished basement or a detached shop usually arrives with a subpanel, and subpanels added outside the permit process are where we find the majority of the faults in this town.
It gets tested rather than condemned. Unpermitted does not mean unsafe, and we are not going to tell you otherwise to sell a correction. What it means is that nobody independent verified it, and a buyer's inspector will say exactly that.
The most common genuine fault we find in these installations is neutrals and grounds sharing a bar downstream of the service. That bonding belongs at the service only, and keeping the paths separate downstream is what stops normal current flowing on the grounding conductor. It is straightforward to correct once found.
About forty minutes from N Hydraulic Street, with no travel charge inside Sedgwick County. Derby is in the county, so MABCD permits subpanels, feeders, panel replacement and service work from 271 W 3rd St N, Suite 101 on (316) 660-1840, inspected against the 2023 National Electrical Code, in force since January 1, 2025. Detached building feeders always need one.
Derby sits southeast of Wichita inside Sedgwick County along the Rock Road corridor.
Reviews
★★★★★
1920s house, fuse box still in service, and an insurer who had finally noticed. They converted it to a modern breaker panel, handled the MABCD permit and the inspection, and gave me a written record I could send straight to the underwriter. No back and forth.
Imani R.Delano
★★★★★
Home inspector flagged double-tapped breakers on our sale. I expected a big number. It was an hour of work and a small invoice, and he re-labelled the whole panel schedule while he was in there without me asking. Sale went through clean.
Doug K.West Wichita
It is worth it, especially before selling. Subpanels added outside the permit process are where we most often find neutrals and grounds sharing a bar downstream of the service, or a feeder undersized for what ended up on it. Neither is visible without opening the board, and both are items an inspector will raise.
Because the bond between them belongs at the service and nowhere else. Combining them downstream puts normal return current onto the grounding conductor, which is not what that path is for. It is one of the most common errors in unpermitted subpanel work, and correcting it is a small job.
Always. Running a feeder to a detached garage or shop requires a permit and inspection through MABCD, and it brings grounding and bonding requirements a feeder inside the house does not have. We pull the permit and book the inspection, and you should never be asked to pull it yourself.
No. Derby is inside Sedgwick County and treated as standard coverage, about forty minutes from our yard. Panels that are hot, humming or giving off a smell take the same-day slot we hold back every weekday, on the same terms as inside the city.
Give us the street and the name on the panel door. You will get the next slot running in this area, and a same-day one if the board is hot, humming or giving off any smell.