What this guide helps you evaluate
Engineering consultancies, independent engineers and technical professional-services firms evaluating errors and omissions or professional liability insurance.
This page is designed to help you compare the moving parts, organize due diligence and ask better questions before you commit money, sign a contract or change an operating process.
Engineering professional liability policies are usually claims-made, so continuity, the retroactive date and reporting rules can be as important as the stated limit.
Contract indemnity, limitation-of-liability language and client insurance requirements should be reviewed together with the policy rather than treated as separate decisions.
What to compare first
- Professional services and disciplines included in the policy definition
- Claims-made trigger and retroactive or prior-acts date
- Per-claim and aggregate limits
- Deductible or self-insured retention
- Defense costs and whether they erode the limit
- Contractual liability, pollution, cyber and project-specific exclusions
- Subconsultants, joint ventures and prior work
- Extended reporting or tail options
Step-by-step process
- 01
List engineering disciplines, services, project types and high-risk client sectors.
- 02
Collect representative client contracts and identify required limits, indemnities and additional obligations.
- 03
Request quotes using the same limit, deductible and retroactive date.
- 04
Compare exclusions and defense-cost treatment before comparing premium.
- 05
Confirm how prior work, acquisitions, subconsultants and claims circumstances are handled before binding.
Common mistakes and risk checks
- Buying only on premium while accepting a narrower professional-services definition or exclusions.
- Allowing a claims-made policy to lapse without understanding prior-acts and extended-reporting consequences.
- Accepting contract liability that is broader than the policy can reasonably support.
- Assuming general liability covers design errors, professional advice or engineering omissions.
Documents and evidence to collect
- Service and discipline description
- Annual revenue by service and project type
- Claims and circumstance history
- Representative client contracts
- Current policy and retroactive date
- Subconsultant and joint-venture arrangements
Questions to ask before approval
- Does the professional-services definition match the engineering work actually performed?
- Are defense costs inside or outside the liability limit?
- How does the policy respond to contractual indemnities and limitation-of-liability clauses?
- What happens to prior work if the firm changes insurer or policy form?
Primary and official references
Rules, pricing and requirements can change. Use these sources to verify the latest details that apply to your situation.