Insulation contractors in Grafton, WI
Tell us about your insulation project in Grafton and compare bids from local pros.

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What affects insulation in Grafton?
Climate zone
Grafton sits in IECC climate zone 5A, per the 2021 International Energy Conservation Code climate zone map.
Source: 2021 International Energy Conservation Code climate zone map
About Grafton, WI
- Population
- 12,445
- Source: U.S. Census Bureau, American Community Survey, 2024
- Median household income bracket
- $75,000-$99,999
- Source: U.S. Census Bureau, American Community Survey, 2024
- Median annual property tax bracket
- $3,000 or More
- Source: U.S. Census Bureau, American Community Survey, 2024
- Climate zone
- IECC climate zone 5A
- Source: 2021 International Energy Conservation Code climate zone map
- Storm history
- From 2016 through 2025, Ozaukee County recorded 17 hail events of 1 inch or larger, 6 severe hail events of 1.75 inches or larger, 18 damaging-wind events of 58 mph or stronger, and 0 tornado events, per NOAA Storm Events data.
- Source: NOAA Storm Events Database
ZIP codes in Grafton
53012, 53024
Insulation in Grafton: common questions
How does the local climate affect insulation in Grafton, WI?
Grafton sits in IECC climate zone 5A, per the 2021 International Energy Conservation Code climate zone map.
How do I get bids for insulation in Grafton, WI?
Describe your project in the bid form on this page. Companies that take this kind of work may contact you with bids. There is no obligation to hire anyone.