How Should an Owner Choose a General Contractor?

By Wyatt Cooper · Published · 7 min read

Key takeaways

  • Choose the delivery method first: it decides whether you pick a contractor on price alone, on qualifications, or on both.
  • Shortlist three to five contractors on written criteria before you ask anyone for a price, and tell them the criteria.
  • Check what you can verify yourself: the license, the surety's bonding letter, the insurance certificate, and references from owners of similar jobs.
  • Compare price only once every proposal covers the same scope; the lowest number on a cover page is often missing something.

To choose a commercial general contractor, first decide the delivery method, because it sets how you select. Then shortlist three to five firms on written criteria: similar work, the people they will put on your job, safety, schedule approach and the financial strength to be bonded. Verify the license, bonding and insurance yourself, call owners they built for, and only then compare prices that cover the same scope.

Start with the delivery method

How you choose a contractor depends on when you bring one in. Under design-bid-build, the design is finished first and contractors bid it, so price carries most of the weight. Under construction manager at risk or progressive design-build, you choose the contractor before the design is done, so you choose mostly on qualifications and the fee, and the full price comes later. The trade-offs are in design-bid-build vs design-build vs CM at risk.

The Construction Management Association of America's owner's guide says fixed-price contracts "are almost always based on a completed design", which "creates a linear approach to project delivery" and gives the owner the most control in exchange for speed. Federal agencies show the qualifications-first route in their two-phase design-build rules (FAR subpart 36.3): phase one rates technical approach, qualifications and past performance with no price, and generally no more than five firms go on to price in phase two.

Write the criteria before you meet anyone

A private owner isn't bound by federal rules, but the government's test of a "responsible" contractor (FAR 9.104-1) is a good checklist: adequate financial resources, the ability to meet the schedule given its other commitments, a satisfactory performance record, integrity and business ethics, the organization, experience, controls and technical skills (including quality and safety programs), and the equipment and facilities, or the ability to get them. Turn those into questions you can score.

What to ask a general contractor before you ask for a price, and what should give you pause
CriterionWhat to ask forRed flag
Similar workThree to five completed jobs of your type and size in the last five years, with the owner's contactOnly photos, no owner you can call
The teamThe project manager and superintendent by name, their résumés, and what else they will be running"We'll assign the team after award"
Financial strength and bondingA letter from their surety stating single-job and total bonding capacityReluctance to name the surety
SafetyTheir written safety program and recent safety recordNo written program
Schedule approachHow they would sequence your job and what they see as the long-lead itemsA duration with no reasoning
License and insuranceThe license number (check it on your state's licensing board site) and a certificate of insurance naming you as certificate holderA license in another name or a lapsed one
DisputesClaims, liens and lawsuits on their jobs in recent years, and how they endedA refusal to answer

On federal work, the Miller Act (40 U.S.C. §3131) requires a performance bond and a payment bond before a construction contract above the threshold is awarded; FAR 28.102-1 states it as $150,000. State and local public work has its own bond laws, and a private owner can require bonds in the contract. Either way, a surety's letter is a check on financial strength that you don't have to do yourself.

A worked example: shortlisting three of seven

A made-up owner, Harlow Clinics, is building a 24,000-square-foot outpatient clinic under design-bid-build. Seven contractors answered its request for qualifications. Its project manager scores each against weights the owner set before reading any of them, and invites the top three to bid.

Harlow Clinics — contractor shortlist, points out of each weight

Weights
Similar work 30 · Proposed team 25 · Financial strength and bonding 20 · Schedule approach 15 · Safety 10
Ridgeway Builders
26 + 20 + 18 + 12 + 8 = 84
Calder & Moss Construction
22 + 23 + 16 + 13 + 9 = 83
Brightwater Contracting
18 + 15 + 20 + 10 + 7 = 70
The other four
Below 70; thanked and told they were not shortlisted
Decision
Invite the top three to bid, with the same documents, the same bid form and the same due date
A shortlisting scorecard on a fictional job. Every firm and score is made up; the weights add to 100.

Notice that Brightwater has the strongest bonding score but a thin team: the scorecard keeps one strength from hiding a weakness. Once bids are in, the owner levels them the way the next guide shows.

Run the process in order

  1. 1OwnerChooses the delivery method and writes the selection criteria and weights
  2. 2OwnerIssues a request for qualifications to firms that build your type of work
  3. 3OwnerScores the responses, checks licenses, bonding letters and references, and shortlists three to five
  4. 4Shortlisted contractorsBid the same documents on the same form by the same date
  5. 5Owner and architectLevel the bids, interview the low two or three, and clear up exclusions in writing
  6. 6OwnerAwards, and signs the contract with the scope, price and schedule agreed
Choosing a general contractor on a design-bid-build job, in order

Call references yourself and ask the owners specific questions: did the job finish on the date in the contract, how were change orders priced, was the punch list closed quickly, and would they hire the same superintendent again.

Mistakes owners make

  • Inviting ten bidders. Pricing a job costs each contractor real money, and the best firms decline long lists.
  • Taking the low number without leveling. A low bid with exclusions can cost more than the next one up.
  • Choosing the company and forgetting the people. Name the project manager and superintendent in the contract, with your approval needed to change them.
  • Skipping the contract terms until after award. Send your draft contract with the bid documents, so prices reflect your terms, including retainage (see how retainage is calculated).

The bottom line

Decide how you will deliver the job, write down what matters and how much, shortlist on qualifications, verify bonding, license and references yourself, and compare price only when every proposal covers the same scope.

Conflo is commercial construction software where the owner, the general contractor and the subs work on the same job, from the GC's proposal through pay apps, change orders and closeout. Join the waitlist to try it on your next project.

Join the waitlist

Sources

  1. FAR 9.104-1, General standards (contractor responsibility) — Acquisition.gov (U.S. General Services Administration). Read October 16, 2026.
  2. FAR subpart 36.3, Two-Phase Design-Build Selection Procedures — Acquisition.gov (U.S. General Services Administration). Read October 16, 2026.
  3. FAR 28.102-1, Bonds and other financial protections: General — Acquisition.gov (U.S. General Services Administration). Read October 16, 2026.
  4. 40 U.S. Code §3131, Bonds of contractors of public buildings or works — U.S. Government Publishing Office. Read October 17, 2026.
  5. An Owner's Guide to Construction and Program Management (2011) — Construction Management Association of America. Read October 16, 2026.

Questions

How many contractors should an owner invite to bid?

Three to five qualified firms is the common range. The federal two-phase design-build rules generally cap phase two at five. In practice, strong contractors often decline to bid against a long list because pricing a job is expensive.

Should an owner always pick the lowest bid?

No. Pick the lowest bid that covers the full scope from a contractor you have already judged qualified. Level the bids first: add what each one excludes, and question any price far below the rest before you award.

What is a bonding letter?

A letter from the contractor's surety stating how large a single job and how much total work it will bond for that contractor. It shows a third party has reviewed the contractor's finances, and it tells you whether your job fits within their capacity.

Do private owners need performance and payment bonds?

Federal law requires them on federal construction contracts above the threshold, and states have their own laws for public work. A private owner usually decides for itself, and its lender may require them. Check your contract, your lender's terms and your state's law.

When should the contractor be chosen if I want help during design?

Use construction manager at risk or progressive design-build, which bring the contractor in before the design is finished. You choose on qualifications and fee, and the contractor prices the work as the design develops.