What GCs Look for When Choosing Subcontractors

General contractors make sub selection decisions based on criteria that many trade contractors do not fully understand. If you think GCs are simply choosing the lowest bid, you are leaving money on the table and missing the real path to becoming a preferred sub.

Here is what GCs actually look for - and what you need to demonstrate to earn a spot on their list.

Reliability Above All Else

Every experienced GC will tell you the same thing: they do not choose the cheapest sub. They choose the sub they can depend on. On a construction project, every trade is interdependent. If the plumber does not complete their rough-in on schedule, the drywall crew cannot start. If the drywall crew is delayed, the painter is pushed back. Every delay cascades.

A sub who shows up when they say they will - and communicates immediately if something changes - is worth a 10 to 15% price premium to most GCs. They budget for reliability. They cannot budget for chaos.

The fastest way to communicate reliability is through references from other GCs who can speak to your track record on scheduling. Homeowner references do not carry weight here. GC references do.

Proper Licensing and Insurance - No Exceptions

GCs will not put an unlicensed or underinsured sub on their projects. Period. The liability exposure is too high. When a project goes to insurance claim, the GC needs every sub to have proper coverage, or the GC's policy takes the hit.

Before you approach any GC for sub work, make sure you have:

• A current, active state contractor license for your trade
• General liability insurance at $1 million minimum (many GCs require $2 million)
• Workers' compensation insurance if you have employees
• The ability to add the GC as an additional insured on your policy (usually a quick, free call to your insurer)

Have your certificates ready to email on the same day you are asked. GCs who have to chase a sub for insurance documentation write that sub off immediately.

Understanding of Construction Scheduling

General contractors work with project schedules that have hard dates and dependencies. To work effectively with GCs, you need to understand basic construction sequencing and know where your trade falls in the order.

For example, HVAC rough-in happens before drywall. Electrical rough-in needs to be done and inspected before insulation. Plumbing needs to be pressure-tested before walls close. If you show up without understanding your place in the schedule, you will either get in the way of other trades or miss your window.

When you are bidding on a project, ask for the project schedule. Review it before your first job. If you are new to GC work, be honest with the project manager: "I want to make sure I understand the sequencing on this one - can you walk me through when you need me for rough-in and when the inspection window is?"

GCs respect subs who ask smart questions before the job, not subs who figure it out as they go.

The Ability to Handle Permitting

On permitted projects, the GC needs subs who can pull their own trade permits, schedule inspections, and pass them without drama. A sub who needs the GC to chase inspectors, resubmit plans, or show up for failed inspections is a liability.

Before you take on GC work, make sure your relationship with the local permit office is solid. Know the inspectors in your area. Understand the common reasons for re-inspection in your trade. Build a process that reliably moves from rough-in to inspection pass in the shortest possible time.

If you have a track record of passing inspections on the first try, mention it. That is a real differentiator.

Clean, Accurate Billing

GCs manage complex cash flows across multiple projects and subs. A sub who invoices inaccurately, bills for work not completed, or sends invoices with no detail creates accounting problems and erodes trust.

Your invoices for GC work should include: the project address, the scope of work completed, any applicable permit or inspection numbers, the agreed contract amount versus what is being invoiced, and the outstanding balance.

If there are change orders, document them immediately with the GC's written approval before you do the work. Change orders that are not approved in writing become disputes at invoice time - and disputes delay payment.

Responsiveness During the Project

GCs need to be able to reach their subs during a project. A question from the GC in the morning that is not answered until the next day can delay a crew that is standing by waiting for information.

Maintain a direct line of communication with the project manager. Respond to questions the same day, usually within a few hours. If you are in the field and cannot take calls, set up a system where messages reach you and you can respond during breaks.

Your Action Step

Ask the next GC you work with to give you honest feedback on where you excelled and where you fell short. Schedule this conversation at job completion. Most GCs will not volunteer this feedback unless asked, but when asked, they will tell you exactly what matters to them. That information is worth more than any research or advice.