How to Get on Construction Bid Lists as a Sub

Where do GCs find subcontractors?

GCs mostly pull subs from platform searches, people they already know and referrals. That is how ConstructConnect, a vendor that sells bid software, describes it. No public data shows how many invites come from each source, so be careful with any percentage you see on a sales page.

For a glazier or a miscellaneous metals sub, that means an estimator filling a Division 08 or Division 05 package has to be able to find your name, clear you through vetting and trust you to turn a number on time. Each of those is a separate piece of work.

What does a GC prequalification form ask for?

A GC prequalification form asks whether you are safe, insured, bondable and experienced at this size of work. ConstructConnect lists license information, insurance certificates, bonding details, safety record, EMR and past project experience as the usual packet. EMR is your Experience Modification Rate. The same page cites a 2018 study of 52 GC firms: 93% asked about safety outcomes, 75% about safety management and 60% about worker training. The study itself was not opened for this post, so read those figures as a vendor's summary.

Forms differ by GC. Build one folder, keep it current, and copy from it:

Can a small shop get bonding help?

Yes, if a surety will not write you at the size you need, the SBA may help. It guarantees bid, performance and payment bonds for small businesses on contracts up to $9 million for non-federal work and up to $14 million for federal work. Performance and payment bonds carry a fee of 0.6% of the contract price, paid to SBA, and bid bonds carry no SBA fee. You still have to meet the surety's credit, capacity and character tests. Those figures are from SBA's page as of October 2026, so check them before you plan around them.

How do BuildingConnected, PlanHub and The Blue Book differ?

They do different jobs, and a given GC may use only one of them. Ask each estimator which one they bid from before you pay for anything.

Do bid platforms guarantee invites?

No, and none of the pages read for this post says how many invites a sub should expect. None lists a subscription price either, so get a written quote and the renewal terms. A platform puts your name where a GC can see it. The GC still decides who gets the invite.

How do you get on a specific GC's bid list?

You ask directly, then make it easy to say yes. Work through a short list:

Keep more than one name at each GC. If your only contact changes firms, the invites can leave with them. The order above is judgment, and no study ranks these steps.

• Pick the GCs whose jobs fit your scope and bonding. Ten that build the tenant improvements you want will do more than 50 that do not.
• Check each GC's website for a subcontractor or vendor registration page and finish it in full. Some larger firms, such as PCL, run their own portal.
• Send the estimating team a short capability statement: trades, service area, license and insurance, bonding capacity, safety metrics, key jobs, and who answers bids.
• Ask which platform they bid from, and fix your profile there.
• Meet people in person. PlanHub suggests local contractors' associations and bid exchanges, and AGC chapters do the same job.
• Answer every invite, including the ones you pass on. A fast no is better than silence on bid day.
• After each bid, ask where you landed and what would change the result, win or lose.

How does public work fit in?

Public work has its own lists, and some are public. The Public Building Commission of Chicago, for one, says subcontractors are selected by general contractors and lets subs monitor the lists of GCs prequalified on its projects. A list like that tells you who to call. PlanHub adds that cities, schools and universities often have open prequalification periods, so look for those windows in your area.

Before you chase it, price the paperwork. Davis-Bacon applies to federally funded or assisted contracts in excess of $2,000. Covered subs submit payroll weekly, and while the WH-347 form itself is optional, the weekly filing is not. Many states add their own rules, so check yours with your state labor agency or an attorney.

What should an estimator find when they look you up?

They should find your scope, your finished work and your prequal details in one place. A fabricator will also want a page that takes an RFQ with drawings, because some of those estimators will send the package straight there. For the wider picture on selling commercial glass and metal fabrication work, start with who your buyers are.

GHOBZ has no tie to these platforms, and its lead generation for glaziers and fabricators goes after owners, architects and property managers alongside your bid list work.