electricians

How Much Does an Electrician Cost in St. Louis, MO? Brick Homes, Knob and Tube, and City Versus County Pricing

How much does an electrician cost in St. Louis, MO? Most jobs run $175 to $500, with knob and tube, brick home rewires, and city versus county rules explained.

How Much Does an Electrician Cost in St. Louis, MO? Brick Homes, Knob and Tube, and City Versus County Pricing

Open the basement ceiling in an 1890s Soulard rowhouse and there is a decent chance you will find porcelain knobs and cloth-wrapped wire running between the joists. Some of it may still be live. That is the starting point for a lot of electrical work in this region, and it explains why a simple outlet job can turn into a longer conversation once the electrician sees what is behind the wall.

Most homeowners in St. Louis, MO pay roughly $80 to $140 per hour for a licensed electrician. Small repairs often total $175 to $500, while panel upgrades and full rewires run into the thousands.

Where you live matters too, since the city and the county run separate permit and licensing systems, and the housing on each side of the line is very different.

The City and the County Are Separate Worlds

The city has been independent from the county since 1876, and that split still shapes electrical work today. Each has its own building department, its own permit fees, and its own process for licensing electricians.

Missouri does not issue a statewide electrician license. Licensing happens at the local level, so an electrician working in both the city and the county typically holds credentials recognized by each jurisdiction. Some municipalities inside the county also handle their own permits and inspections.

For homeowners, the practical takeaway is to ask whether the electrician is licensed for your specific address. A contractor based in Chesterfield may work across the county but not hold a city license, or the reverse.

What This Means for Price

Permit fees and inspection scheduling vary by jurisdiction, and some smaller municipalities move faster than larger offices. These differences rarely swing a job by more than a couple hundred dollars. Labor rates are fairly similar across the metro, though some city jobs take longer because of older construction.

Why Old Brick Homes Cost More to Wire

The region is known for solid brick houses. After the Great Fire of 1849, the city pushed builders toward brick and stone, and much of the older housing in neighborhoods like Soulard, Lafayette Square, Tower Grove, and the Central West End reflects that history.

Brick exterior walls with plaster on lath inside are hard to fish new wire through. Electricians often route cables through basements, attics, closets, and baseboards instead of opening walls. That takes extra time and adds to the labor bill, sometimes 20 to 40 percent above the same job in a newer frame house.

Plaster repair is its own cost. Many electricians cut small access holes and leave patching to the homeowner or a plasterer, so ask how your quote handles it.

Knob and Tube Wiring

Knob and tube was the standard wiring method in American homes from the late 1800s into the 1930s. It has no ground wire, the insulation dries out and crumbles with age, and it was never designed for modern loads. Problems get worse when someone has buried it under blown-in attic insulation, which traps heat.

Many insurance carriers will not write a new policy on a home with active knob and tube, or they require an electrician's letter confirming it has been removed or decommissioned. Replacing it in a typical two-story city home commonly costs $8,000 to $20,000, depending on size, access, and how much of the original wiring is still in use. Partial replacement, focused on the circuits still in use, can cost less.

Common Electrical Jobs and Prices

Here is a rough guide to everyday work across the metro:

• Service call or diagnostic visit: about $75 to $150
• Replacing outlets or switches: about $100 to $200 each, less per device when grouped
• Converting two-prong outlets to grounded or GFCI-protected outlets: about $125 to $300 each
• Adding a dedicated 20-amp circuit: about $250 to $650
• Installing a light fixture or ceiling fan: about $150 to $400
• Whole-house surge protector: about $300 to $650

Jobs in older city homes tend to sit at the top of these ranges. Newer construction in the outer suburbs often lands at the low end.

Panels in Florissant and the North County Ranches

Florissant, Hazelwood, and much of North County filled in with ranch homes and split-levels after World War II and through the 1960s and 1970s. Those houses usually have 60 or 100-amp service and panels from manufacturers that are now out of business. Federal Pacific Stab-Lok and Zinsco panels turn up often, and both have a reputation for breakers that do not trip reliably.

Replacing a panel and upgrading to 200-amp service generally costs $2,000 to $4,500 in the region. If the meter base, service mast, or overhead drop also needs replacing, the price can climb toward $5,000 or more. Ameren Missouri handles the utility disconnect and reconnect, so scheduling depends on their calendar.

Many owners upgrade the panel when adding central air, a basement finish, or an EV charger. It makes sense to plan those projects together so you pay for the service work once.

Fuse Boxes Still in Use

Some city and inner-ring homes still run on screw-in fuses. Fuses work when used correctly, but owners often swap in larger fuses to stop nuisance blowing, which removes the protection. Replacing a fuse box with a breaker panel usually falls within the same $2,000 to $4,500 range.

Kirkwood, Webster Groves, and the Inner Suburbs

Kirkwood and Webster Groves have a mix of Victorian homes, early 1900s bungalows, and postwar houses on tree-lined streets. Electrical work there often blends old and new: a kitchen remodel in a 1910 house might uncover knob and tube in one wall and modern cable in the next.

Kitchen and bath remodels are a big source of electrical jobs in these suburbs. Current code calls for GFCI and AFCI protection on many circuits, dedicated appliance circuits, and specific outlet spacing on countertops. Bringing a kitchen up to code during a remodel can add $2,500 to $6,000 in electrical work alone.

Some Kirkwood homes sit in local historic districts. Exterior changes like moving a meter or adding a generator on a street-facing side may need review, so check before planning a visible project.

Occupancy Inspections When You Sell

Many municipalities in the county require an occupancy or point-of-sale inspection before a home changes hands. Inspectors look for items like missing GFCI outlets near water, open splices, uncovered junction boxes, and damaged service equipment. Electrical items show up on these lists often, and sellers usually have to fix them before closing.

Clearing a typical list costs roughly $300 to $1,200 when the issues are small. A failed service mast or a panel with signs of overheating can push it past $3,000. Each municipality has its own checklist and fees, so ask your agent which rules apply to your address.

Starting early helps. If you plan to list in spring, have an electrician walk through in the winter so repairs are done before the inspector shows up.

Two-Family Flats and Rentals

The city has thousands of two-family flats, and many owners live in one unit and rent the other. These buildings often have two meters, two panels, and shared basement wiring that has been modified many times. A full electrical survey of a flat usually costs $200 to $400 and gives a landlord a clear list of what needs attention.

Splitting or upgrading service on a flat runs higher than on a single home. Expect two panel upgrades and two meter bases, which can mean $5,000 to $9,000 for the building.

EV Chargers in West County

Newer homes in Chesterfield, Wildwood, and Ballwin usually have 200-amp service and modern panels, so adding a Level 2 charger is often simple. Most installations in these suburbs run $600 to $1,600 when the garage is close to the panel.

Older homes are another matter. A charger in a Florissant ranch with 100-amp service often triggers a panel upgrade first, and a load calculation will tell you whether the existing service can handle it.

Storms and Summer Load

The region sees severe thunderstorms in spring and summer, and outages follow. Ice storms in winter can take down lines too. Generator interest has grown in the county suburbs, and a standby unit with an automatic transfer switch typically runs $9,000 to $16,000 installed.

Summer heat stresses older wiring as air conditioners run hard. Window units on old circuits are a common cause of tripped breakers and warm outlets in city apartments and two-family flats. A dedicated circuit for a window unit or mini split usually costs $300 to $700.

Choosing an Electrician

Ask about licensing for your jurisdiction, proof of insurance, and whether the electrician will pull the permit. For older homes, ask how much knob and tube experience they have and how they handle plaster.

Get quotes in writing with the scope spelled out, including surge protection, grounding updates, and patching. You can compare local options in our list of licensed electricians near you, and more pricing guides are available on our home services blog.

St. Louis Electrician Questions

Will my insurance cover a house with knob and tube wiring?

Some carriers will, some will not, and others charge more. Many ask for an electrician's inspection letter describing what is still active. Getting that letter usually costs $150 to $350 and can save you from a denied application.

How long does a full rewire take in a brick city home?

Most two-story homes take one to three weeks of electrical work. Plaster walls and finished basements add time, and inspections happen at rough-in and at the end. You can often stay in the house with power off for parts of each day.

Is it cheaper to hire an electrician in the county than in the city?

Hourly rates are close across the metro. The difference comes from the house itself, since older city homes take longer. A panel swap in a Florissant ranch often finishes faster than the same job in a Soulard rowhouse.