Home services in Illinois
Explore home projects in Illinois with practical guidance on contractor licensing, permits, insurance, and common home styles.
Illinois homes at a glance
- Median home value
- $263,300
- U.S. median: $332,700
- Median home age
- 55 yrs
- Typical home built in 1971
- Extreme-weather days a year
- 122
- 14 days 90°F+ · 108 nights ≤32°F
Sources: Census ACS: values · year built · PRISM/NOAA
ACS 2020–2024 · Climate 2015–2024 · Home ages as of 2026.
About
Planning projects in Illinois
Illinois stretches from the shores of Lake Michigan through broad prairie, fertile farmland, wooded river valleys, and the hills of southern Illinois. Seasonal temperature swings, humidity, snow, heavy rain, wind, and varying soil conditions all influence the way homes age over time. Lake-effect weather, urban environments, open plains, and flood-prone waterways each create different maintenance priorities. Understanding how these regional conditions affect drainage, roofing, foundations, insulation, and mechanical systems helps homeowners make smarter long-term decisions.
Home services across Illinois
Project planning rules
Contractor licensing in Illinois
Illinois has no statewide license for general, remodeling or HVAC contractors; those are local. Roofers are licensed by IDFPR. Plumbers are licensed by the Department of Public Health, where plumbing contractors also register.
Rules vary by city and county. Confirm with your local building department.
Verify a license: IDFPR (roofing) · IDPH (plumbing)
Insurance requirements
Under the Home Repair and Remodeling Act, contractors must carry $100,000 per person and $300,000 per occurrence for bodily injury, plus $50,000 for property damage. Roofers must carry $500,000 in liability and post a $10,000 or $25,000 bond. There's no recovery fund.
Rules vary by city and county. Confirm with your local building department.
Permit rules
There's no statewide residential code; codes and permits are local. Work over $1,000 needs a written contract, and contractors must give homeowners a consumer rights pamphlet. Homeowners can cancel a contract signed at home within 3 business days, or 15 if they're over 65.
Rules vary by city and county. Confirm with your local building department.
Sources: Roofing application · Home Repair Act · IDPH Plumbing
Researched October 1, 2026 from official state sources.
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Architecture
Common home styles in Illinois
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Illinois home improvement guides
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Common questions about hiring a contractor
Investigate water entry, seasonal dampness, and any foundation concerns before installing walls or flooring. Test for radon in the basement even if an earlier test covered only an upstairs living area; addressing an elevated result is generally easier before the space is finished. Plan insulation, ventilation, and access to mechanical equipment together. Ask how the proposed materials will handle below-grade conditions and what repairs must be completed before construction conceals the foundation.
Ask the contractor to identify what is causing the deterioration rather than treating every damaged area as a repointing job. Water entry and repeated freezing can contribute to masonry damage, while movement may require a separate structural assessment. For older brickwork, replacement mortar should be compatible with the existing masonry in hardness and moisture behavior, not just color. Include correction of contributing leaks or drainage problems so the repair addresses more than the visible surface.
Start with your city or county building department to identify the credentials required for the proposed work. Local requirements matter: Chicago, for example, maintains its own contractor licensing system. Roofing contractors have a separate Illinois state licensing requirement, which you can check through the Illinois Department of Financial and Professional Regulation. Match credential records to the business named in your contract, and verify insurance and references alongside the applicable licenses.