Sturm Builders, Inc
Home addition contractor based in Northbrook.
- License active
- Insurance and bond on file
3 addition jobs on Chicago permits, 2025 to 2026. 176th most addition permits of 186 contractors in Chicago.
What the public records show
From the city's license records and the city's permits, one question at a time.
| Question | Records show | Mark |
|---|---|---|
| Licensed? | License TGC073040, active in the city's records on Oct 2, 2026General Contractor (Class D)Class D lets them take jobs up to $4 million.We found this license by the business name. No other active license has that name. | Checks out |
| Insurance and bond? | Insurance and bond on file with the city, good until Sep 1, 2027The city requires both for this license. Ask for a copy of the insurance certificate. | On file |
| Jobs on record | 3 addition jobs on Chicago permits, 2025 to 2026Every permit we have for them is addition.They are based in Northbrook. Work outside Chicago is not in these records.Their permits mention 2 porchs, 1 bathroom, 1 basement, 1 kitchen.176th most addition permits of 186 contractors in Chicago. That counts jobs, not quality.Our Chicago permit records cover September 2021 to September 2026. |
Records: the city Department of Buildings and City of Chicago permits.
Cost and timing
All addition jobs in Chicago: $95,000 to $300,000
Half of 2,442 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Second-story additions in Chicago: $95,000 to $238,000 (1,075 permits)
- Garage additions in Chicago: $100,000 to $375,000 (499 permits)
How to read this range
Contractors write a job value on the permit form, and the city uses it to set the permit fee. It is not the contract price, and it is often lower than what you pay. A quarter of the permits list less than this range, and a quarter list more. Use it to see if a quote is in the normal range.
Permit value (not a price)
Their typical permit lists $375,000 (half list more, half less)
That is the figure written on the permit form, which can be far from what you pay. What addition jobs cost in Chicago.
Get 2 or 3 written quotes.
Permit wait
Across Chicago, addition permits usually take about 3 months to be issued
Track record
Latest jobs
Permit values are what the contractor wrote on the permit form, not what the owner paid.
| Date | Work | On the permit form |
|---|---|---|
| May 27, 2026 | AdditionNo details on the permit | $375,000 |
| May 22, 2026 | AdditionNo details on the permit | $175,000 |
| May 9, 2025 | AdditionRear 1-story frame addition w/ covered porch to existing 1-story brick residence (single family… | $390,000 |
What to ask before you hire
About Sturm Builders, Inc
- Ask what the warranty covers and for how long, in writing.
- Search their name on the Better Business Bureau site, and read their reviews.
Worth asking any home addition contractor
- Can you show me proof of liability insurance and your bond?
- Do you handle the plans and engineering, or do I hire them?
- Who will run the job day to day, and who are the subcontractors?
- Who pulls the permits, and what is the payment schedule?
Get a quote from Sturm Builders, Inc
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