Find an inspector

for your project

How it works


Create a job, specify the inspection type, price, and time, and see which inspection agencies match with you.

Confirm Pricing and Scheduling

DOB inspectors are available at no additional cost; however, you may instead choose to seek a proposal from other third-party agencies. Book and stay in touch with your inspector via text until the job is complete.


If you choose a third-party agency, prices are included in the proposals so there are no surprises. Once your inspection is complete, just log back in to Tertius and complete your payment.

Is your project ready for inspection?

  • Start a new project now and connect with nearby inspectors in just a few clicks.
  • Begin by entering some basic project info, select the inspection you need, and choose from available inspectors.

Begin Now

Tertius is

  1. Reliable

    Only DOB-certified agencies can have a profile

  2. Innovative

    Book, schedule, and see the history of all your inspections in one place

  3. Transparent

    Every DOB and third-party agency inspector is fully approved and certified - choose the best one for your project needs