Four Built Blog

Practical guides to run a construction company.

Time clock, estimates, invoices, job costing and clients. Short, practical and written for contractors.

Time clock

GPS time clock for construction crews: stop paying for hours nobody worked

How a GPS time clock with job site geofences ends timesheet disputes, protects payroll and gives your crew a fair record of every hour.

October 26, 2026 · 6 min read
Contracts

Change orders: how to get paid for every extra on the job

A practical guide to change orders for contractors: what to include, when to send it and how to get the client to approve it before the work starts.

October 24, 2026 · 6 min read
Finance

Construction invoicing: 7 habits that get you paid faster

Simple invoicing habits for contractors that shorten the time between finishing the work and seeing the money in the bank.

October 22, 2026 · 5 min read
Finance

Job costing for small contractors: find out which jobs actually make money

A simple job costing method for small construction companies: labor, materials, subs and overhead, tracked while the job is still running.

October 20, 2026 · 6 min read
Subcontractors

Subcontractor insurance (COI): why an expired certificate can cost you the job

What a certificate of insurance is, why general contractors must track subcontractor COIs and how to never miss an expiration date again.

October 17, 2026 · 5 min read
Clients

Client updates that stop the "how is my job going?" phone calls

How contractors can keep homeowners and commercial clients informed with photo updates and a private job page, and win more referrals along the way.

October 14, 2026 · 5 min read
Sales

Your estimates pipeline: win more bids without working more hours

How to organize estimate requests and bids in a simple pipeline so no lead is forgotten and you know exactly what is about to close.

October 10, 2026 · 5 min read
Finance

Construction overhead: the hidden costs eating your margin

What overhead is for a construction company, the costs most contractors forget and how to track them so your bids cover the real cost of running the business.

October 7, 2026 · 5 min read
Growth

Growing a construction company in the US: 7 systems to put in place before you scale

For immigrant and family-run construction companies in the US: the seven systems that let you take on more jobs without losing control.

October 3, 2026 · 7 min read
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