Design-build or plan-and-spec? Choosing how to buy an AV system
The two common ways commercial owners buy AV, what each costs you in control and risk, and how to pick the right firms for each.
Published November 5, 2026. 2 minute read.
Before you choose a firm, choose how you're buying. Most commercial AV is bought one of two ways, and each one changes who you hire, how you compare bids, and who carries the risk when something doesn't work.
Design-build: one firm designs and installs
In design-build, a single integrator listens to your needs, designs the system, sells the equipment, installs, programs and supports it.
Good fit when:
- You have a handful of rooms, or a repeatable room standard
- Speed matters more than a competitive bid on every line item
- You already trust a firm, or your organization has a standing agreement with one
Watch for:
- The design will favor the platforms the firm sells. That's fine if those are the platforms you want.
- With no independent design, nobody checks the integrator's work on your behalf. Write your performance requirements and acceptance tests into the contract.
- Ask for an itemized proposal so you can see labor, programming and equipment separately.
Plan-and-spec (design-bid-build): a consultant designs, integrators bid
An independent AV consultant (or the architect's AV designer) writes the drawings and specifications. Integrators bid against the same documents, and the consultant usually reviews submittals and witnesses testing.
Good fit when:
- The project is large, public or must be competitively bid
- You want someone on your side checking the installer's work
- Rooms are complex: divisible spaces, auditoriums, broadcast, simulation
Watch for:
- Consultant fees and a longer schedule
- Low bids that meet the letter of the spec but staff the job thinly. Prequalify bidders before you open prices.
- Gaps between the consultant's design and what the integrator must program. Make sure someone owns the control and DSP design narrative.
A middle path: design-assist
Some owners hire an integrator early to help a consultant or architect develop the design, then negotiate the installation price. You get practical input early and keep some independent oversight.
How to prequalify, whichever way you buy
- Define the minimum: licenses for your state, insurance limits, and the platforms you've standardized on.
- Require named people with the right credentials for design, programming and installation. See which certifications to require.
- Ask for similar projects and call the references.
- Agree on how the system will be tested and handed over. Our commissioning and handover checklist is a good starting point.
Finding the right firms
On AVCleared you can search integrators by the trades they do (design-build integration, design and consulting, control programming, DSP tuning) and by the platforms they sell, install, program or service. Search design-build integrators or AV design and consulting firms.