Mr. Jason Ostby has over 20 years of experience in construction and property claims, with a focus on residential and light commercial structures. Jason leverages his extensive knowledge of construction practices in all aspects of his role. His background as an estimator at construction restoration firms and as a property loss adjuster at several insurance companies makes him a key team member to deliver high-value services to ACC’s clients. Jason started his career in the construction trades as a carpenter that led to owning his own construction business in the Chicago area.

Jason is highly knowledgeable with Xactimate estimating software utilized broadly throughout the insurance industry.

Representative Project Experience

Large Loss Residential Fire – Bloomingdale, IL

Building Consulting services on a $1,000,000 fire loss at a high-end residence.

Large Loss Commercial Property Vehicle Impact and Ensuing Fire – Oak Lawn, IL

Building Consulting services on a $550,000 loss to a retail plaza.

Large Loss Fire Damage to Multi-Family Building – Chicago, IL

Estimated $750,000 fire loss to multi-family building.

Hurricane Mathew – 2016 Catastrophe Work – Savannah, GA

Adjusted multiple CAT losses due to Hurricane Mathew in Savannah, GA area.

Tornado Event – 2015 – Coal City, IL

Adjusted multiple large tornado losses in town of Coal City, IL

Tornado Event – 2013 – Diamond, IL

Adjusted multiple large tornado losses in town of Diamond, IL

Jason Ostby

Principal Building Consultant
(224) 651-0106

Areas of Expertise

✓ Building Consulting
✓ Damage Assessment
✓ Repair Estimating
✓ Construction Estimating
✓ Fire Restoration
✓ Water Restoration
✓ Storm Restoration
✓ Property Claims
✓ Building Codes

Relevant Work Experience

June 2023 – Present:
Aggregate Construction Consultants – Skokie, IL
Principal Building Consultant

August 2022 – May 2022:
Envista Forensics – Deerfield, IL
Senior Building Consultant

November 2018 – August 2022:
CCA Restoration Inc. – Alsip, IL
Construction Estimator

October 2017 – November 2018:
Selective Insurance – Branchville, NJ
Property Claims Specialist

May 2017 – Oct. 2017:
Genesis Prop. Restoration – Harwood Heights, IL
Construction Estimator

February 2017 – May 2017:
American Family Insurance – Madison, WI
Large Property Loss Adjuster

October 2009 – February 2017:
Country Financial – Bloomington, IL
Property Claims Specialist

December 2005 – Oct. 2009:
Master Craft Construction – Manhattan, IL

June 1994 – December 2005:
L. Ostby & Sons Remodeling – Lansing, IL
Lead Carpenter


Coming Soon

Computer Skills

✓ Xactimate
✓ Windows
✓ MS Word
✓ Adobe


Bachelor of Arts, 1998
Benedictine University – Lisle, IL