Job costing software for residential builders

Long jobs make small drift invisible

On a one-week job, a labor overrun shows up fast because there's so little time for it to hide in. On a four-month build, a crew running slightly over budget in week three doesn't look like anything yet — it's a few hundred dollars against a six-figure job. By week twelve, that same small weekly drift has compounded into a real problem, and by the time it's visible in a final cost report, there's no schedule left to fix it in.

That’s why real-time, per-phase cost tracking matters more for a residential builder than almost any other segment — the whole risk of a long job is that small overruns are individually invisible and collectively expensive. Costing needs to be visible by phase (foundation, framing, rough-in, finish) so you can catch a phase running hot while there’s still schedule left to adjust it, rather than discovering it in an end-of-job report that arrives after the last invoice.

Draws, change orders, and keeping one accurate number

Change orders are where margin actually gets lost or protected

On a long residential build, the base contract price is usually the easy part to track — it’s the change orders that quietly determine whether the job was actually profitable. A homeowner upgrading a countertop or adding a window seems small in the moment, but if the added labor and materials aren’t tracked against the added price the homeowner agreed to pay, that change order can turn from a small win into a loss without anyone noticing until close-out.

Provisional sums are a promise to argue later

Every residential build carries allowances for things not yet chosen: kitchens, bathrooms, finishes. They are necessary and they are also the most common source of a difficult conversation at the end, because the client remembers an allowance as a price and the builder remembers it as an estimate.

Tracking each provisional sum against its actual as the choices are made, and telling the client at that moment rather than at the end, converts a year of small surprises into a series of small conversations. It is the same information either way; the timing is what decides whether it is a problem.

Where SiteLedger fits

SiteLedger tracks a job’s margin in real time across its full timeline, so a residential build running for months stays visible phase by phase instead of turning into a single number you only see at close-out. Geofenced time tracking captures crew hours accurately across a long schedule, and AI receipt scanning reads vendor and total off a photo in about four seconds — useful for the steady stream of material deliveries and trade invoices that build up over a multi-month job.

Daily logs give you a running, dated record of what happened on site each day of a long build — useful when a homeowner questions a delay or a change order months later and you need to point to what actually happened, not what you remember. It works fully offline for sites without reliable signal, and Professional ($15/month, unlimited workers) adds AI budget alerts that flag a job drifting off track before the phase is finished, plus calendar and scheduling. Both plans start with a 1-week free trial, no card required.

Common questions

How should I track change order costs separately from the base contract?

Track the labor and materials for each change order as its own line against the price the homeowner agreed to pay for it, rather than folding it into the job’s overall cost total. That’s the only way to see whether a specific "extra" was actually priced correctly — mixed into the base job number, a losing change order is invisible.

Does job costing help me manage draw schedules?

It doesn’t create or submit draw requests, but it does give you the cost data to check your work — if a draw milestone assumes a phase is complete, your job cost by phase tells you whether the actual spend lines up with that assumption before you send the draw request.

How often should I be checking job cost on a months-long build?

Weekly, at minimum, and by phase rather than only looking at the job total. A weekly check is frequent enough to catch a phase drifting before it’s finished, and infrequent enough not to be another admin burden layered onto a long job.

Can this replace my draw schedule software or accounting system?

No — it’s meant to sit alongside your accounting software (syncing to QuickBooks or exporting for other systems) and give you the real-time job cost visibility that a monthly bookkeeping cycle usually can’t provide on its own.