The rules that apply before anyone touches your pipes in Deerfield
Illinois licenses plumbers through the Illinois Department of Public Health under the Illinois Plumbing License Law. Work follows the Illinois Plumbing Code (Part 890 of Title 77 of the Illinois Administrative Code), which says counties, cities, villages and water districts shall adopt a plumbing ordinance. In practice a Deerfield job can involve both state rules and village ones.
Ask the village or have the plumber confirm which Deerfield jobs need a village permit before work starts. Do not assume a permit is needed or not needed.
How to vet a Deerfield plumbing job before it starts
These four checks take a few minutes and prevent most surprises.
Verify the license
Look up the plumber on the Illinois Department of Public Health's online license verification before work begins.
Ask about the permit
Ask whether the job needs a village permit and who pulls it, and get the answer before the work starts.
Get the price first
A clear price should list the main parts of the job. If the scope changes, ask for the new price before anyone continues.
Call 811 before digging
For a service line or sewer repair, JULIE needs at least 3 days notice before digging, and the service is free.
The same checks apply to a water service line repair or a planned plumbing installation.
Water and sewer
Highland Park water, tanks and what they mean at your tap
Deerfield's Water Division buys all of its water from the City of Highland Park, which treats Lake Michigan water. The village pumps it to three reservoirs and one elevated tank. For your home that means pressure depends on the village system, so a gauge on a hose bibb tells you whether trouble is inside the house, where EPA WaterSense says 45 to 60 psi is the target.
The village FAQ puts hardness near 134 parts per million, and its 2023 test lists total hardness of 130 as CaCO3. On the USGS scale 121 to 180 mg/L is hard, so scale can form on fixtures and in electric heaters. Test your own tap and see water softener installation if you want to treat it.
Who handles what: the village or your plumber
Knowing which side of the meter a problem sits on saves time during an emergency.
Call the village or utility for
- A water main problem on the street
- Low pressure that affects the whole block
- Questions about water quality reports
- A suspected gas leak after leaving the house, with Nicor Gas at 800-942-9727
Call the plumber line for
- A leak or burst pipe inside the house
- A failed water heater
- A blocked drain or sewer backup in your own line
- A suspected failed service line between the street and your meter
When you cannot tell which it is, call (847) 281-8626 and the dispatcher will help sort it.
Problem inside the walls or under the yard?
Call (847) 281-8626 at any hour and a plumber is sent to find the cause and explain the price.
Lead service lines and state law
Illinois Public Act 102-0613 requires water system owners to inventory service lines and replace known lead ones. A final replacement plan is due to the Illinois EPA by April 15, 2027.
Ask the Deerfield Water Division where your address stands before paying for any service line work.
Before we arrive at your Deerfield home
These steps protect the house and speed up the visit.
Smell gas? Leave, avoid switches and phones inside, and call Nicor Gas at 800-942-9727 or 911 from outside.
Services dispatched around the clock in Deerfield
Water line, heater and installation work lead here, and every service below is on the same emergency line.
Water service line repair
The pipe from the street to the meter, with JULIE called before digging.
Water heater replacement
Sized by first hour rating, with the permit question answered up front.
Plumbing installation
New fixtures, remodels and additions done to the Illinois Plumbing Code.
Homes in nearby towns can call the same 24/7 line, and the dispatcher confirms coverage by address. For another Lake County village, see plumber service in Lincolnshire.
Sump discharge, drains and water lines: what to ask first
Use this to focus the first call.
| Item | Question to ask | Why it matters |
|---|---|---|
| Sump discharge | Where does the village expect it to go | Guidance from Chicago-area sewer agencies says to make sure it does not discharge to the sanitary sewer |
| Service line | Is it lead, and what is the village plan | State law requires inventories and a replacement plan |
| Water heater | What is the date code on the label | It shows the age and helps decide repair or replacement |
| Water pressure | What does a gauge on a hose bibb read | A target of 45 to 60 psi, with a regulator needed above 80 |
| Permit | Does the job need one and who pulls it | Confirm with the village before work starts |
A plumber can answer these on site and give the price before work starts.
What shapes the price of a Deerfield job
Prices vary with the job. A dispatcher gives the price before work starts, and these factors drive it.
Checked sources for this page
Licensing, the Illinois Plumbing Code and the local ordinance rule come from the Illinois Department of Public Health and 77 Ill. Adm. Code 890. The lead service line rule is Illinois Public Act 102-0613, and the 811 notice comes from JULIE.
Water supplier, storage and hardness figures come from Deerfield's water quality report and its water FAQ. Gas leak steps come from Nicor Gas, and pressure figures from EPA WaterSense.
The Illinois Plumbing Code sets the baseline, and the village decides what paperwork a job needs, so ask before work starts.
Deerfield, Illinois on the map
Deerfield is a drive east of Buffalo Grove, served by the same 24/7 emergency line.
Questions we hear from homeowners
Deerfield uses one ZIP code, 60015, so there is only one to cover. It also serves addresses labeled Bannockburn and Riverwoods, and we dispatch to those homes too.
The 24/7 line works the same for every address in 60015.
Yes. The 24/7 line at (847) 281-8626 is answered at night, on weekends and on holidays. A plumber is sent for leaks, failed heaters and backups.
Yes. A broken line can flood a yard or cut your supply at any hour, and the line is open all day and night. We shut off, find the break and explain the price, and JULIE must mark utilities before digging.
The village FAQ puts hardness near 134 ppm, and its 2023 test lists 130 as CaCO3. That is in the hard range on the USGS scale.
Which jobs need one is a question for the village. Ask the village or have the plumber confirm before work starts.
Illinois law requires water systems to inventory service lines and replace known lead ones. Ask the Deerfield Water Division about your address.
Illinois licenses plumbers through the Illinois Department of Public Health, which provides online license verification. Check it before work begins.