Back to Blog
2026 Cost Guide
Home Addition Cost Guide Pennsylvania & New Jersey 2026
Complete pricing for room additions, second stories, sunrooms, in-law suites, and garage conversions in PA & NJ
25 min readCost GuideExpert Tips2026 Updated
Room Addition
$150-$300/sq ft
Ground floor, 200-400 sq ft
Second Story
$200-$400/sq ft
500-1,000 sq ft typical
Sunroom
$150-$350/sq ft
Three or four season
In-Law Suite
$100K-$200K
400-800 sq ft, self-contained
Garage Conversion
$50K-$150K
400-600 sq ft conversion
Bump-Out
$20K-$60K
50-150 sq ft extension
3,160 words
25 min read
Vincent Karaca
Founder & CEO
Founder Vincent Karaca brings over 23 years of hands-on field experience to every project. He is a master of structural remodeling and is personally committed to transparent, honest contracting. Licensed PA HIC #158550 & NJ HIC #13VH11744800.
Table of Contents
Important Note on Pricing
All costs listed in this guide are estimates based on 2026 market conditions in Pennsylvania and New Jersey. Actual costs vary based on site conditions, material selections, labor availability, and project complexity. Always obtain at least 3 detailed written estimates from licensed contractors before committing to a project.
Ready to Start Your Home Addition?
Get a free, detailed home addition estimate from VM Power Construction. We're licensed in both Pennsylvania (158550) and New Jersey (13VH11744800), serving Allentown, Bethlehem, Easton, Doylestown, Reading, Trenton, and the surrounding areas with quality construction.
Vincent Karaca
Founder & CEO
Founder Vincent Karaca brings over 23 years of hands-on field experience to every project. He is a master of structural remodeling and is personally committed to transparent, honest contracting. Licensed PA HIC #158550 & NJ HIC #13VH11744800.