XBuild raises $19 million

XBuild has raised a $19 million Series A round led by N47, with participation from Rackhouse Ventures and Andreessen Horowitz. The San Francisco–based company is also rolling out a new product, Roofing Proposals, aimed at speeding up residential roofing estimates.

Founded in 2022, XBuild positions itself as an estimating and proposal system of record for contractors, starting with roofers. The company’s longer-term goal is to extend the same workflow across additional construction verticals, including concrete, landscaping, painting, windows and doors, HVAC, plumbing, and insulation.

XBuild said that in its first year more than 15,000 projects were completed on the platform, representing roughly $250 million in construction value.

The platform focuses on automating estimating and proposal generation, using inputs contractors already rely on, such as measurement reports and site photos, to produce standardized, editable estimates in minutes.

The newly launched Roofing Proposals product targets residential roofers specifically. It pulls in real-time material pricing through integrations with suppliers such as ABC Supply and supports common measurement and imagery tools including EagleView, Hover, Roofr, and photos from tools like CompanyCam. Proposals are shared with homeowners via a link that presents pricing options, supports e-signatures, and accepts payments through Stripe.