home additions in Modesto
Best home additions contractors in Modesto
An addition is a small construction project: design, permits, foundation, framing, and finish. The contractor who manages all of it on a written schedule is the one worth hiring. Modesto's hot, dry summers keep HVAC, pools, and outdoor trades busy across Stanislaus County.
Verified pros in Modesto
Be the first verified home additions pro in Modesto
Quotrr is rolling out across California. As general contractors verify completed work in Modesto, they appear here ranked by Quotrr Score, recent verified work, and distance. Claim this page by listing your business free.
What general contractors in Modesto quote
- Room and second-story additions
- Accessory dwelling units (ADUs)
- Garage conversions
- Foundation and framing
- Permit and design management
Home additions prices in Modesto
Room additions typically runs $35,200 to $105,600. Garage conversions typically runs $22,000 to $66,000. Detached ADUs typically runs $105,600 to $308,000.
Central Valley pricing typically runs 10 to 20 percent below coastal California, so the ranges below skew toward the lower end. These are typical ranges, not quotes. Get a line-item proposal from a Modesto pro to price your job.
What a verified outcome looks like
Examples of the kind of record Quotrr keeps on a completed home additions job. Each is tied to a real job and cannot be edited or deleted after the homeowner posts it.
A garage-to-living conversion permitted and finished on the quoted schedule, each inspection logged against the job record.
A detached ADU delivered at the signed price with foundation, framing, and finish milestones documented on the verified outcome.
Home additions in Modesto: common questions
How much does a home addition cost in Modesto?
A room addition in Modesto typically runs in the five to six figures, while a detached ADU reaches the mid six figures. Foundation work, finishes, and the Modesto permit path drive the number. See the ranges above.
How long does an addition take to build in Modesto?
Most additions run 3 to 8 months from permit to final, longer for an ADU. Design and the Modesto permit review often take as long as the build itself, so plan for both.
Can I build an ADU in Modesto?
California law makes ADUs easier to permit statewide, and Modesto follows the state framework with local rules on size and setbacks. A general contractor who builds ADUs locally knows the current Modesto requirements.
How do I choose a general contractor in Modesto?
Look for finished projects of similar scope and a verifiable record. On Quotrr a Modesto contractor's completed builds carry verified Props tied to the real job, with the schedule and price on record.