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Mechanical, Electrical & Plumbing Permits
Mechanical Permits
Mechanical permits are required for the:
Requirements
Mechanical work is not required to be performed by a licensed contractor or individual. Permits will be issued to any competent individuals. Whether mechanical permits are issued to the property owner or contractor, it is the property owner's responsibility to verify that the permit has been issued and see that it is posted on the job site.
Applications
Mechanical permits should be applied for three to four days before starting the work. The permits may be applied for in the Department of Public Works Office in City Hall, 12500 Old Jamestown Road, between 9 a.m. and 4 p.m., Monday through Friday.
Electrical Permits
Some examples of work requiring electrical permits and field inspections include:
Electrical permits are issued to electrical contractors who are licensed by St. Louis County. When selecting your electrical contractor, you may verify qualifications by asking to see the company's license or visiting the St. Louis County website.
Plumbing Permits
Some examples of work requiring plumbing permits and inspections include:
Plumbing permits are issued to master plumbers and drain layers who are licensed by St Louis County. When selecting your plumber or drain layer, you may verify qualifications by asking to see the company's license or visiting the St. Louis County website.
When You Need a Licensed Contractor
You do not need a licensed contractor for work such as water heater installation and replacement. Water heater permits can be issued to any qualified individual. A homeowner can receive plumbing or electrical permits if the dwelling is a single family home occupied by the owner.
The owner must purchase the necessary equipment for the installation or repair, and must pass a short test to determine that the applicant has sufficient knowledge of plumbing or electrical codes to do the work. After the owner has personally completed the work, the work must meet all code requirements. Periodic inspections of the work in progress must be conducted by the plumbing inspector in order to verify code compliance. It is the responsibility of the owner to schedule these inspections.
Obtaining a Permit
Electrical and plumbing permits may be applied for in the Department of Public Works at City Hall, between 9 a.m. and 4:30 p.m., Monday through Friday. Permits should be applied for three to four days before starting the work.
Mechanical permits are required for the:
- Modifications to piping systems for steam or hot water heating systems
- Installation of a fireplace or wood stove
- Repair or replacement of a chimney
- Installation or replacement of a boiler
- Installation or modification to the natural gas piping system
- Installation or replacement of central heating and cooling units
Requirements
Mechanical work is not required to be performed by a licensed contractor or individual. Permits will be issued to any competent individuals. Whether mechanical permits are issued to the property owner or contractor, it is the property owner's responsibility to verify that the permit has been issued and see that it is posted on the job site.
Applications
Mechanical permits should be applied for three to four days before starting the work. The permits may be applied for in the Department of Public Works Office in City Hall, 12500 Old Jamestown Road, between 9 a.m. and 4 p.m., Monday through Friday.
Electrical Permits
Some examples of work requiring electrical permits and field inspections include:
- Installation of new electrical service
- Any addition to or alteration of the existing branch circuit wiring
- Installation of new electrical outlets or light fixtures
- Installation of new fuse or circuit breaker panels
Electrical permits are issued to electrical contractors who are licensed by St. Louis County. When selecting your electrical contractor, you may verify qualifications by asking to see the company's license or visiting the St. Louis County website.
Plumbing Permits
Some examples of work requiring plumbing permits and inspections include:
- The placement of new fixtures
- Soil pipe connections
- Replacement of sewer laterals
- Soil stacks
- Vent pipes
- Water heater installations
- Kitchen remodeling
- Bathroom remodeling
- Water supply lines
Plumbing permits are issued to master plumbers and drain layers who are licensed by St Louis County. When selecting your plumber or drain layer, you may verify qualifications by asking to see the company's license or visiting the St. Louis County website.
When You Need a Licensed Contractor
You do not need a licensed contractor for work such as water heater installation and replacement. Water heater permits can be issued to any qualified individual. A homeowner can receive plumbing or electrical permits if the dwelling is a single family home occupied by the owner.
The owner must purchase the necessary equipment for the installation or repair, and must pass a short test to determine that the applicant has sufficient knowledge of plumbing or electrical codes to do the work. After the owner has personally completed the work, the work must meet all code requirements. Periodic inspections of the work in progress must be conducted by the plumbing inspector in order to verify code compliance. It is the responsibility of the owner to schedule these inspections.
Obtaining a Permit
Electrical and plumbing permits may be applied for in the Department of Public Works at City Hall, between 9 a.m. and 4:30 p.m., Monday through Friday. Permits should be applied for three to four days before starting the work.