Contractor’s protective professional cover is errors and omissions insurance a paving contractor buys against the engineer or surveyor it hired. On design-build or contractor-furnished-design work, it is built to respond when that firm’s design is at fault and its own practice policy is exhausted, lapsed or excludes the claim, unlike cover for your own professional acts.
Who draws the design when you hold the design-build contract
On a design-build paving job, you sign the contract, but a licensed firm you hire usually does the engineering. Most paving companies cannot stamp a drainage plan or a pavement section themselves, and state engineering laws are why.
Florida’s engineering practice law starts from the rule that “No person other than a duly licensed engineer shall practice engineering”. It then exempts a general contractor “when negotiating or performing services under a design-build contract as long as the engineering services offered or rendered in connection with the contract are offered and rendered by an engineer licensed in accordance with this chapter.” That is Florida’s statute speaking for Florida; our Florida page carries the state view.
Transportation departments describe the same pairing. Washington State DOT’s design-build professional liability guidance says “The procured DB team (a paired contractor and design consultant) takes over the preliminary design from WSDOT and develops the final design for the project.”
On paving work, that pairing looks ordinary. A civil engineer sets the grades and drainage for a design-build lot or access road. A surveyor stakes control and elevations. A geotechnical or civil firm designs the pavement section under your proposal. In every case, the design came from a firm you hired.
Why the owner’s claim reaches you before it reaches the engineer
The owner has one contract, and it is with you. When the design fails, the owner’s claim lands on your company first, and you then pursue the design firm under your own subconsultant agreement.
WSDOT’s guidance is direct about where the risk moves: “As such, the majority of the responsibility and risk for the design and construction is allocated to the selected DB team.” The owner does not have to sort out which half of the team drew the grade.
Some states write the design firm’s insurance into law. Ohio’s public-improvements law on requiring professional liability insurance says “any person rendering professional design services to a public authority or to a design-build firm, including a criteria architect or engineer and person performing architect or engineer of record services, shall have and maintain, or be covered by, during the period the services are rendered, a professional liability insurance policy or policies” that “afford professional liability coverage for the professional design services rendered.” The same law lets the public authority waive that and accept “other assurances of financial responsibility”, and adds that “At the public authority’s discretion, the design-build firm shall carry contractor’s professional liability insurance and any other insurance the public authority considers appropriate.” Our Ohio page covers the state view.
So the money behind your claim against a negligent engineer is, in practice, that engineer’s professional policy. When you design something yourself, that exposure is yours, and it is covered on our professional liability page.
One practice policy behind every project the firm designs
A design firm usually carries one professional policy for its whole practice, not one for your job, so the limit on its certificate also answers every other project it has designed.
The City of Bothell’s design-builder insurance exhibit says it plainly: “The requirement for professional liability coverage on this Project shall be the standard form practice policy provided by Design Consultant.” The same exhibit carries a note to the design-builder: “Even if this coverage part is selected, the Design-Builder should consider obtaining its own professional liability coverage.”
That structure opens two gaps. The first is erosion: a claim from another owner, on a job you never saw, can use up the aggregate before your claim arrives, and on many professional forms the cost of defense comes out of the same limit, a point our professional liability page treats in full. The second is lapse. A firm can let the policy go, be refused at renewal, or change insurers with different terms.
Contracts watch for both. Bothell requires notice to the owner “of any cancellation or non-renewal of the Design Consultant’s practice policy”, and the exhibit adds that “Coverages, whether written on an occurrence or claims-made basis, shall be maintained without interruption from date of commencement of the Work until date of Final Payment.”
Design claims that surface after the policy year ends
Design problems on pavement tend to show up after the lot opens: water that will not drain, a section that breaks up under loads it was not designed for, curb set off a bad control point. By then, the design firm may be on a different policy year, or on no policy at all.
Most professional policies are claims-made, so the policy in force when the claim is made is the one that answers, not the one in force when the drawings were signed. The retroactive date must reach back far enough; Bothell’s exhibit requires that “Professional Liability coverage shall be retroactive to the date that professional services first commenced.” And the policy must still be in force, or in an extended reporting period, when the claim arrives. Bothell also asks the policy to “permit reporting of circumstances that could give rise to a claim” and to “provide coverage for post-expiration claims resulting from such circumstances.”
Texas puts part of this on the insurer’s paperwork. Texas’s filing requirements for professional liability forms say “If the policy is a claims made policy a disclosure to that effect must be prominently displayed on either or both the declaration sheet or the first page of the policy.” They also require “A policy provision advising the insureds of a right to purchase an extended reporting endorsement.” That is a Texas filing rule, not a national one, but it shows where to look on any declarations page. Our Texas page covers the state view, and how timing works on your own professional form is on the professional liability page.
No seat on the engineer’s policy, and the gaps in its wording
On your general liability policy, an owner or general contractor can be added as an additional insured. Professional policies do not work that way, and contracts say so. Bothell’s exhibit states “No person shall be named as an additional insured on any professional liability policy.”
That leaves you outside the design firm’s policy: you can only pursue the firm and wait to see whether its insurer responds.
The design firm’s wording can also leave out the loss you care about most. Contracts carve at those exclusions. Bothell requires that “The policy must provide coverage for damages resulting from delays, including delays in project completion and cost overruns that result from the rendering or failure to render professional services.” Where a design firm’s form excludes delay, a schedule loss caused by a redesign has nowhere to land in that firm’s coverage.
Real-World Scenario: A paving contractor wins a design-build job for a warehouse lot and hires a small civil firm to set grades and drainage. The lot opens, and the low corner ponds after every storm. The owner demands that the corner be milled and relaid and holds the retainage. The contractor turns to the civil firm and learns its practice policy has been used up by a claim on another project, and the firm is closing. The owner’s claim is now the contractor’s alone.
What a protective professional wording is built to answer
Protective professional cover is not a standard form. Each insurer writes its own wording, so everything in this section describes the product in general and has to be checked against the wording you are actually offered.
Typically, the named insured is you, not the design firm. The cover is aimed at loss you suffer, or liability you face, because of a professional error by a firm you hired. Many wordings sit excess of the design firm’s own professional insurance and are written to respond when that insurance is exhausted, uncollectible, lapsed or does not apply. Some add a first-party cost to correct a design error you catch; whether yours does, and how it is triggered, is a question our professional liability page helps frame.
It is not the same as contractor’s professional liability, which answers for professional acts your own company performs. The two are often written together in one policy, which raises the question of whether they share one limit.
Owners already write the term into contracts. Bothell’s list of cover to be kept after final payment includes “Professional Liability, including Contractor’s Protective Liability, if applicable.” A federal survey of design-build practice found one agency that “purchased an owner’s protective errors and omissions policy” and another that “required the contractor to provide errors and omissions coverage.” Protective professional cover exists on both sides of a transportation job.
Indemnifying your engineer, and the insured contract carve-out
Some design-build contracts ask the paving contractor to indemnify the design firm as well as the owner. That promise is not something your liability policy will pick up.
Under the standard ISO form as commonly written, the Commercial General Liability Coverage Form (CG 00 01 04 13, the edition we read), the insuring agreement at I.1.a pays damages “because of “bodily injury” or “property damage” to which this insurance applies.” A design error that injures no one and damages no one’s property is not what that grant describes. Exclusion I.2.b then removes liability “for which the insured is obligated to pay damages by reason of the assumption of liability in a contract or agreement”, with a give-back for an “insured contract”.
The definition at V.9.f leaves out a contract “That indemnifies an architect, engineer or surveyor for injury or damage arising out of:” “Preparing, approving, or failing to prepare or approve, maps, shop drawings, opinions, reports, surveys, field orders, change orders or drawings and specifications” or “Giving directions or instructions, or failing to give them, if that is the primary cause of the injury or damage”. It also leaves out a contract “Under which the insured, if an architect, engineer or surveyor, assumes liability for an injury or damage arising out of the insured’s rendering or failure to render professional services”.
So if you indemnify your hired engineer for its drawings or surveys, that indemnity sits outside your liability policy. How to draft or push back on indemnity language is covered in indemnity clauses and the insured contract. Your contract, the law of your state and the policy wording decide how any clause applies, and none of this is legal advice; have counsel read the indemnity before you sign. The commercial umbrella carries its own professional-services exclusion as well, explained in umbrella and excess liability for paving contractors.
Reading the design firm’s certificate before design starts
The cheapest protection is paperwork collected before the first drawing. Ask your engineer or surveyor for a professional liability certificate at contract signing, not after a problem appears.
Ask for the same from every firm below it. Bothell makes it the design consultant’s job to ensure that its own subconsultants “provide Design-Builder and Design Consultant with evidence of insurance to comport with this Exhibit.” Then read what comes back:
- The professional line is there. A certificate showing only general liability does not answer a design error.
- Claims-made or occurrence. If it is claims-made, look for the retroactive date and confirm it reaches back to the start of services.
- The period. The policy should run through the design, and renewal or an extended reporting period should cover the years after the pavement goes down.
- No additional insured box. On the professional line, that absence is normal, not a defect.
Put the notice duty in the design subconsultant agreement, so the firm must tell you of any cancellation or non-renewal. Remember what a certificate is: a snapshot of limits in force today. It does not show how much of the aggregate other claims have used, and it does not promise renewal. That gap is what protective professional cover is for. Limits are set by each owner’s contract; WSDOT notes its own tool “does not assign or identify the specific monetary amount of liability coverage, identify the coverage period, nor identify deductible amounts.” Our paving contractor insurance program is built around those contract terms, job by job.
Send us the design-build contract’s insurance article, your subconsultant agreement and the design firm’s certificate, and request a quote so we can show you where protective professional cover fits.