Will County

Home permits and project costs in Joliet, IL

Joliet sits in Will County, Illinois. Freeze-thaw cycling, frost-depth footings and an older housing stock keep foundation, sewer and window work in steady rotation. Work outside city limits is permitted by the county building department rather than the city.

Verified August 2026

Local cost index

+11%

vs national average

Permit fee index

+13%

vs national baseline

Population

150,362

Homeownership

Do you need a permit in Joliet?

For most structural work, yes

Joliet enforces local adoption of the irc; statewide plumbing and energy codes apply through Will County. Roofing, electrical, plumbing, structural, pools and most exterior additions require a permit and inspection. Cosmetic work — paint, flooring, cabinet swaps — generally does not.

Project costs in Joliet

National baselines adjusted by the local labor and materials index.

Project	Typical cost	Permit	Deep pages
Roof Replacement	$11,400 – $38,400	required	Cost·Permit
AC Replacement	$6,000 – $17,900	required	Cost·Permit
Fence Installation	$2,800 – $12,600	usually required	Cost·Permit
Water Heater Replacement	$1,400 – $6,300	required	Cost·Permit
Pool Installation	$44,800 – $135,500	required	Cost·Permit
Window Replacement	$8,800 – $40,100	required	Cost·Permit
Electrical Panel Replacement	$2,200 – $8,000	required	Cost·Permit
Generator Installation	$7,600 – $25,700	required	Cost·Permit
Solar Panel Installation	$17,200 – $55,200	required	Cost·Permit
Kitchen Remodel	$20,200 – $103,400	conditional	Cost·Permit
Bathroom Remodel	$10,200 – $47,400	conditional	Cost·Permit
Driveway Replacement	$4,800 – $21,900	usually required	Cost·Permit
Paver Patio & Walkway	$4,000 – $18,100	conditional	Cost·Permit
Deck Construction	$6,400 – $32,600	required	Cost·Permit
Shed Installation	$2,000 – $13,600	conditional	Cost·Permit
Whole-House Repipe	$5,300 – $18,800	required	Cost·Permit
EV Charger Installation	$900 – $4,900	required	Cost·Permit
Hurricane Shutter Installation	$3,800 – $21,500	required	Cost·Permit
Pool Enclosure / Screen Cage	$10,700 – $49,900	required	Cost·Permit
Septic System Replacement	$8,900 – $33,200	required	Cost·Permit
Impact Window Installation	$10,700 – $50,000	required	Cost·Permit
Exterior Door Replacement	$1,100 – $7,600	usually required	Cost·Permit
Garage Door Replacement	$1,700 – $8,900	required	Cost·Permit
Siding Installation	$9,300 – $44,300	usually required	Cost·Permit
Stucco Repair	$1,000 – $18,100	conditional	Cost·Permit
Soffit & Fascia Replacement	$2,100 – $12,800	conditional	Cost·Permit
Gutter Installation	$1,000 – $7,300	rarely required	Cost·Permit
Roof Repair	$500 – $5,600	conditional	Cost·Permit
Flat Roof Replacement	$7,200 – $33,400	required	Cost·Permit
Attic Insulation	$1,300 – $8,300	rarely required	Cost·Permit
Ductwork Replacement	$2,900 – $13,900	required	Cost·Permit
Mini Split Installation	$2,800 – $14,400	required	Cost·Permit
Flooring Installation	$2,800 – $22,300	rarely required	Cost·Permit
Tile Installation	$2,000 – $18,000	rarely required	Cost·Permit
Interior Painting	$1,700 – $10,800	rarely required	Cost·Permit
Exterior Painting	$3,200 – $17,000	rarely required	Cost·Permit
Drywall Repair	$400 – $5,100	rarely required	Cost·Permit
Kitchen Cabinet Refacing	$5,000 – $22,400	rarely required	Cost·Permit
Countertop Replacement	$2,400 – $13,300	rarely required	Cost·Permit
Tub to Shower Conversion	$4,000 – $18,500	usually required	Cost·Permit
Sod Installation	$1,000 – $7,800	rarely required	Cost·Permit
Irrigation System Installation	$2,500 – $11,300	conditional	Cost·Permit
Tree Removal	$500 – $6,300	conditional	Cost·Permit
Outdoor Kitchen	$6,900 – $51,800	usually required	Cost·Permit
Seawall Repair	$9,600 – $113,700	required	Cost·Permit
Dock Construction	$10,800 – $101,700	required	Cost·Permit
Well Installation	$6,500 – $29,500	required	Cost·Permit
Mold Remediation	$1,700 – $17,300	conditional	Cost·Permit
Water Softener Installation	$1,400 – $7,500	usually required	Cost·Permit
Home Addition	$53,700 – $334,000	required	Cost·Permit

Joliet permitting basics

Jurisdiction	Joliet, Will County
Building department	Confirm with the city or county
Permit portal	No verified online portal on file
Owner-builder permits	Homeowner permits allowed in most jurisdictions, restricted in Chicago
Contractor verification	Verify any license with Illinois Capital Development Board before signing

Sources

Sources & verification

Illinois Capital Development Board

Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.