XBuild, a San Francisco–based construction technology company, has raised $19 million in a Series A funding round.
The round was led by N47, with participation from Rackhouse Ventures and Andreessen Horowitz.
The company plans to use the capital to expand its estimating platform across multiple construction verticals. These include concrete, landscaping, painting, windows and doors, glass and glazing, insulation, HVAC, and plumbing.
Most importantly, XBuild aims to develop what it describes as a “vibe coding” estimating platform designed for broad use across the construction industry.
XBuild offers an AI-powered platform built specifically for construction contractors. The software helps businesses simplify the estimating process and produce professional proposals more efficiently.
As a result, contractors can reduce manual effort, save time, and improve pricing accuracy while competing for new projects.
The company recently launched Roofing Proposals, a product designed for residential contractors. It replaces traditional template-based estimating workflows and focuses on speed, clarity, and accuracy.
The product supports several key improvements:
Clear profit margins
The platform integrates with material suppliers such as ABC Supply. This allows contractors to access real-time pricing and estimate costs more accurately.
Measurement format compatibility
It supports PDF reports from tools including EagleView, GAF QuickScope, Hover, and Roofr. Contractors can also use manual photos, including those captured through CompanyCam, to generate proposals within minutes.
Homeowner transparency
Each proposal includes a homeowner-facing link with pricing options, e-signature support, and Stripe Connect payments. This helps shorten payment cycles and simplifies the buying process.
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