Third-Party Plan Review and Engineer Stamp for Permit
Bring the drawings you already have. A licensed PE reviews every sheet, corrects what falls short and seals the set for permit.
- Stamped by a PE licensed in your state
- Built to IBC, IRC and local amendments
- Plan-check comments answered
Your drawings, reviewed and sealed by a licensed engineer
You have a set of plans from a drafter, a designer, a manufacturer, a stock plan company or an engineer in another state, and the building department has told you it needs an engineer stamp for permit. That is a common request, and it is a legitimate service when it is done the right way: with a complete engineering review by a PE who is willing to take full responsibility for what the drawings show.
PE Engineer reviews third-party drawings for projects in all 50 states. A Professional Engineer licensed in the state where your project is located checks the design, identifies anything that does not meet code or does not work structurally, and either corrects it or tells you exactly what needs to change. Once the set is right, the engineer seals it.
What we will not do is seal drawings without reading them. That protects you as much as it protects the engineer, because a seal on a design that fails in plan check or in the field helps nobody.
What you receive
- Sheet-by-sheet engineering review
- Written list of findings and redlines
- Supporting calculations where required
- Corrected or added details
- PE sealed drawing set
- Responses to plan-check comments
Drawings we commonly review and seal
Third-party drawings come from many sources, and each one tends to have its own typical gaps that the review is set up to catch.
Drafter and designer plans
Residential and light commercial sets drawn by non-licensed designers, reviewed for structure, code compliance and completeness, then sealed once any corrections are made.
Stock and purchased plans
House, garage and barn plans bought online, adapted to your local code edition, site loads and foundation conditions before the engineer seals them.
Manufacturer standard drawings
Carports, sheds, metal buildings, canopies and shade structures with standard drawings that need site-specific wind, snow and foundation design and a local seal.
Out-of-state engineered designs
Drawings sealed by an engineer licensed elsewhere, reviewed and adopted by a PE licensed in your project's state, or redesigned where the local loads differ.
Contractor and design-build drawings
Framing layouts, MEP layouts and field-change sketches prepared by the installing contractor, reviewed, corrected and sealed so the building department will accept them.
Older plans for a new permit
Previously permitted plans reused for a new lot or resubmitted after the original engineer is unavailable, checked against the code edition now in force.
Your Stamped, Permit-Ready Plans Start With One Upload
Send your drawings or describe the project. A licensed engineer reviews it and sends a clear, fixed-fee proposal, often within hours.
- Free and no obligation
- Reviewed by a licensed PE
- Secure file upload
When you need an engineer stamp for permit on existing drawings
Building departments ask for a seal when the work shown on the drawings must be designed by a licensed professional, which typically means structural elements beyond prescriptive code tables, commercial work, and certain MEP systems. If someone without a license prepared the drawings, the city will usually not accept them for that scope until a licensed engineer takes responsibility.
Common situations include:
- A designer drew the house or addition, and plan check asked for engineered beams, shear walls or foundations.
- A homeowner bought stock plans and the city requires a local engineer’s seal for the site’s wind, snow or seismic loads.
- A manufacturer supplies standard carport and canopy or metal building drawings, but the local jurisdiction wants them sealed for the specific site.
- A project was engineered by a firm in another state, and the seal is not valid where the building will be built.
- A contractor made a field change and the inspector wants a sealed detail before signing off.
In each case the fix is the same: an engineer licensed in your state reviews the work and takes responsibility for it, correcting whatever needs to change along the way. A seal from another state cannot simply be swapped for a local one. The local engineer must review the design as though it were their own.
How the third-party review works
The process is designed to be quick for you and thorough for the engineer.
- Upload your drawings. Send the full PDF set, any calculations, product or truss data, the soils report if there is one, and plan-check comments if the set has already been reviewed.
- Scope and fixed-fee quote. We confirm which sheets the seal will cover and flag anything that looks like it will need work. You receive a fixed fee, usually the same day.
- Detailed review. Your engineer checks design loads, the load path, member sizes, connections, foundations and code requirements for the scope being sealed, and lists the findings.
- Corrections. We revise the sheets ourselves or return redlines to your designer. Missing calculations are prepared by us.
- Seal and deliver. The engineer seals the reviewed sheets and calculations, and you receive a set ready to submit.
Where state rules expect the sealing engineer to reissue the design on their own sheets, or where the corrections are extensive, we redraw the affected sheets under our title block rather than marking up someone else’s. Either way, every sealed sheet reflects work the engineer has actually checked. Most residential sets go through this process within a few business days, depending on how much the review turns up, and rush service is available.
Have a Question? Get a Real Engineer's Answer in Minutes
Skip the guesswork. Chat live with a licensed engineer about your drawings, code requirements or permit comments, free and with no obligation.
- Free and no obligation
- Reviewed by a licensed PE
- Secure file upload
Problems we often find in third-party drawings
Many drawings we receive are close, and some need significant work. The gaps tend to fall into the same categories, which is why a plan checker often rejects a set that looks complete to the owner.
- Loads for the wrong place. Stock and manufacturer plans are frequently designed for a lower wind speed, a lighter snow load or a lower seismic category than the project site requires.
- No lateral design. Gravity framing is shown, but shear walls, hold-downs and braced wall lines are missing or do not meet the code for the site.
- Undersized members. Beams and headers that work for bending but fail deflection, or posts with no footing under the concentrated load.
- Missing connections. Beam-to-post, ledger and uplift connections left to the framer’s judgment.
- Outdated code references. Notes and details written to an older code edition than the one your jurisdiction now enforces.
- Inconsistent sheets. Dimensions, openings or beam sizes that differ between the floor plan, framing plan and sections.
Finding these before submittal is the point of the review. Each one is far cheaper to fix on paper than after a correction letter, a failed inspection or a change order in the field.
What the seal means for you and the original designer
Once the engineer seals the drawings, the engineer is professionally responsible for the sealed scope. That has a few practical consequences worth knowing before you start.
First, changes after sealing must come back through the engineer. If the designer, builder or owner revises a sealed sheet, the seal no longer applies to the revised work, and an inspector who notices will stop the job. Send us the change and we will review it and reseal.
Second, the seal is limited to what was reviewed. If the set includes architectural or MEP sheets outside the engineering scope, they are clearly identified so nobody assumes they are covered. Our structural PE stamp and MEP stamp services can extend the review to those disciplines.
Third, make sure you have the right to use and modify the drawings. Stock plans are sold under a license, and designers usually retain copyright in their work. Many plan licenses allow modification for a single build, but it is worth confirming before we revise them.
Ready to start? Send your drawings through our quote form and we will reply with a fixed fee and any early concerns.
This service fits if
- A designer or drafter prepared your plans
- You bought stock plans for your lot
- A manufacturer's drawings need a local seal
- Your engineer is not licensed in this state
- Plan check asked for a licensed engineer
- The inspector wants a sealed field change
How it works, start to finish
From your first message to stamped drawings, you work directly with the engineering team.
- 1Share your projectSend the address, scope and any drawings, photos or plan-check comments. Two minutes is enough.
- 2Receive a fixed-fee proposalAn engineer reviews the scope and replies with a firm price and delivery date for your third-party plan review & stamp drawings.
- 3Engineering and draftingWe run the calculations and prepare drawings to the codes your jurisdiction enforces, checked before sealing.
- 4Stamped set deliveredYou receive a sealed PDF set ready to submit, and we answer any plan-check comments within scope.
Rules and codes the review follows
Sealing drawings prepared by others is governed by the engineering practice act and board rules of the state where the project is located. The technical review follows the edition of each code your jurisdiction has adopted:
- International Residential Code (IRC) and International Building Code (IBC)
- International Existing Building Code (IEBC) for work on existing buildings
- ASCE 7, Minimum Design Loads for Buildings and Other Structures
- NDS for wood, AISC 360 for steel and ACI 318 for concrete
- National Electrical Code (NEC/NFPA 70) for electrical sheets
- State codes such as the Florida Building Code and the New Jersey Uniform Construction Code
How licensing works. Engineering drawings must be sealed by a Professional Engineer licensed in the state where your project is located. PE Engineer works with a network of state-licensed PEs, so every set is reviewed and stamped by an engineer with an active license in the state where your project is located. Their name and license number appear on the seal, exactly as your building department requires.
Related services
Structural PE StampFoundation, framing, beam and lateral drawings checked against site loads and code, backed by calculations and sealed by a licensed structural PE.Explore More
MEP PE StampMechanical, electrical, plumbing, fire protection and energy drawings checked against code and sealed by engineers licensed in your state for each discipline.Explore More
Truss Review & StampingIndependent review and PE stamp of wood and metal truss drawings, girder and bearing checks, and engineered repairs for cut or damaged trusses.Explore MoreFrequently asked questions
Can you just stamp my drawings without changes?
If the drawings are complete and correct, yes, they are sealed as submitted after the review. But the engineer must review them first and will not seal a design that does not meet code or does not work. Many sets need at least minor corrections before they are ready.
Is it legal for an engineer to stamp drawings someone else prepared?
Rules vary by state. Many state boards permit a PE to adopt work prepared by others once the engineer has checked it completely and accepts full responsibility for it. Others expect the design to be reissued under the sealing engineer’s own title block. Your project is handled under the rules of the state where it will be built.
My drawings are already stamped by an engineer in another state. Why do I need another seal?
A seal is valid only in the state where the engineer is licensed. For your permit, a PE licensed in your project’s state must review the design, confirm it suits local loads and codes, and take responsibility for it. If the original design holds up, this is mostly a review.
What happens if the review finds problems?
You receive a clear list of what needs to change and why. We can make the corrections and prepare any missing calculations, or return redlines to your designer. The quote tells you up front if we expect significant work, so there are no surprises later.
How much does it cost to get plans stamped by an engineer?
Pricing reflects how many sheets carry the seal, which disciplines are covered and whether the drawings need calculations or redesign. We send a fixed-fee quote after looking at your drawings, usually the same day, and plan-check comments on the sealed scope are answered at no extra charge.
What do I need to send for a review and stamp?
The project address, the complete drawings in PDF, any calculations, truss or product data, a soils report if one exists, and plan-check comments if the set has already been reviewed. Photos help for work on existing buildings.
Get your free third-party plan review & stamp proposal
Tell us where the project is and what you need. Attach any drawings, photos or plan-check comments. A licensed engineer reviews every request.
- Upload your filesPlans, sketches, photos or comments
- Get a fixed-fee proposalUsually the same day
- Receive stamped drawingsSealed by a PE licensed in your state