A credibility-first front door, and an AP pipeline that runs itself.

A decade-old Nashville commercial builder had a web presence that undersold the firm, plus an accounts-payable process that ran on manual invoice entry across hundreds of active projects.

Cambridge Building Group homepage — "Building Nashville’s Future" over a navy-and-gold hero noting Est. 2015, 120+ years combined experience, and 350+ projects completed

Challenge

Cambridge Building Group does high-trust commercial work, but the previous web presence did not communicate that. Prospects landed on a site that under-represented the company and gave sales conversations nothing to lean on.

In commercial construction, the website is not a brochure — it is a stage in the buying process. A weak stage costs the firm conversations it should be having.

The diagnostic showed the real problem was sales friction, not visual design. Serious prospects needed to understand capability, credibility, and positioning within a few seconds of arriving on the site.

Everything else — typography, project imagery, contact paths — needed to serve that one job.

Cambridge Building Group track-record timeline — founded 2015, the Nashville Shores project, tornado-recovery rebuilds, and an unlimited Tennessee license — The credibility was always there — founded 2015, an unlimited Tennessee license, 350+ projects. The work was surfacing it.

Solution

The engagement grew into two pieces of software. The first is the public marketing site — built on React 19, TanStack Router, Tailwind 4, and Motion — with deliberate visual hierarchy and conversion-focused inquiry paths, so a prospect at the top of the funnel and one ready to talk both find the right next step.

The Cambridge Building Group core-values section — Communication, Urgency, Integrity, Technology, Innovation, and Safety in a tabbed navy-and-gold layout — The rebuilt site leads with how the firm works — its core values laid out plainly, in the firm’s own navy-and-gold identity.

Cambridge Building Group services section — commercial, hospitality, industrial, multifamily, select residential, and pre-engineered metal buildings — Six service areas laid out so a prospect can self-qualify before they ever pick up the phone.

The second is an internal AP portal. Vendor invoices arrive through a Postmark inbound email address or a manual upload, and Claude vision extracts the fields. A project manager reviews each one, and approved invoices post straight to QuickBooks Online as Bills — PDF attached, project tagged. It runs on FastAPI and PostgreSQL behind self-hosted Logto auth, with Cloudflare R2 for document storage, deployed on Coolify.

Results

Invoices that post themselves

Vendor invoices arrive by email, get read by Claude vision, pass a PM’s review, and land in QuickBooks Online as Bills with the PDF attached and the project tagged.

A front door that matches the work

The marketing site leads with the firm’s record — a decade in business, 350+ projects, and an unlimited Tennessee contractor license.

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