Anywhere in Texas
Sealed engineering letters for Texas property, ordered online
The exact document your permit office, your underwriter, or your insurer is asking for. Flat rate, defined scope, and reviewed and sealed by a licensed Texas Professional Engineer who seals only what the evidence supports.
- Licensed Texas PE review
- Flat rate, quoted up front
- Digital seal, ready to submit
Opening soon
Sealed Engineering is not yet accepting orders. Firm registration is pending with the Texas Board of Professional Engineers and Land Surveyors, and no engineering services are being offered or performed under this brand until it is granted. Founding customers on the waitlist are contacted first when ordering opens.
Ten deliverables, each with a defined scope
Every one of these is a document somebody has told you to go and get. Each page below explains what it is, who needs it, exactly what arrives, and what evidence has to exist before an engineer can seal it.
- Document reviewSolar Structural LettersThe stamped letter your plan reviewer asks for before a rooftop array goes on: existing framing capacity, wind uplift at the actual site, and attachment spacing that resists it.What it contains
- Site visit requiredManufactured Home Foundation CertificationsThe engineer's certification an FHA, VA, or USDA file needs before a manufactured home closes: the foundation observed against the HUD Permanent Foundations Guide and sealed by a licensed Texas PE.What it contains
- Site visit requiredRoof Certification LettersThe letter an underwriter asks for when the appraiser flags the roof: condition observed, deficiencies named, and an estimate of remaining useful life, sealed by an engineer.What it contains
- Site visit requiredFoundation Inspection ReportsAn independent engineering opinion on what a foundation is actually doing: a relative elevation survey, documented distress, and a conclusion that is not written by anyone selling piers.What it contains
- Site visit requiredWPI-8 Windstorm CertificationsThe Texas Department of Insurance certificate of compliance that windstorm coverage depends on, obtained through the licensed engineer path rather than the TDI inspector queue.What it contains
- Documents or site visitStructural Letters for PermitsPlan review asked for a sealed letter and the project stopped. This is the deliverable that restarts it: a specific structural question answered, sealed, and addressed to the reviewer who asked.What it contains
- Documents or site visitBeam and Header Sizing LettersTaking a wall out, or opening one up. The beam gets sized against the real loads, the bearing gets checked, and the load path gets followed all the way down instead of stopping at the ceiling.What it contains
- Documents or site visitRepair Specification LettersSomething structural is damaged and somebody has to say exactly how it gets fixed. This is that document: the repair specified in buildable detail, sealed, and written so plan review and the contractor read the same thing.What it contains
- Document reviewCarport and Patio Cover PlansA small plan set that passes plan review: footing schedule, post and beam sizes, and the uplift connections that matter more than anything else on a structure this light.What it contains
- Site visit requiredFoundation Repair PlansThe repair designed before it is bid: pier type, locations, depth, and design load specified by an engineer who is not selling the piers.What it contains
How it works
Three steps, and the middle one is the only part that varies by deliverable.
- 01
Tell us what you need
Pick the deliverable, give us the property address, and answer a short intake built for that specific document. No general contact form, no discovery call, no proposal.
- 02
We collect the evidence
Some documents are written from what you upload: plans, photographs, framing information, and equipment cut sheets. Others require somebody on site, and a certified field technician performs the measurements and the photographic record.
- 03
A licensed Texas PE reviews and seals
The engineer reviews the evidence, performs the analysis, and seals what it supports. The sealed PDF arrives ready to upload to a permit portal or a loan file.
Who this is built for
Five groups order most of this work, and three of them order it every week. The pages below are written for repeat buyers rather than for one time orders.
What a seal actually means
A professional engineer's seal is a statement that a licensed individual reviewed the evidence and reached the stated conclusion, and that their license stands behind it. It is not a formality, it is not a rubber stamp, and it is not available on request.
That is why nobody here will tell you in advance what a letter will conclude, and why a document that does not support certification comes back with the reason and the remedy rather than with a signature. It is also exactly why the seal is worth anything to the permit office or the underwriter receiving it.
Engineering work is performed under the license and registration of 254 Engineering Services LLC.
Texas is not one engineering problem
Design wind speed runs from around 100 miles per hour in the interior past 150 on the lower coast. Soil runs from Houston Black clay that moves inches every season to Permian caliche that barely moves at all. Fourteen counties carry a windstorm certification requirement the rest of the state has never heard of. Every city page below is written for that market rather than templated across it.
Common questions
What is a sealed engineering letter?
It is a written engineering opinion carrying the seal and signature of a licensed professional engineer. The seal is what makes it admissible to a permit office, an underwriter, or a state agency, because it places the engineer's license behind the conclusion. A letter without a seal is correspondence; a letter with one is a professional record.
Do you work everywhere in Texas?
Yes. Document based deliverables are produced for any Texas address. Deliverables requiring a site observation are scheduled around a certified field technician reaching the property, which is what sets the timeline in the more remote parts of the state.
How is this different from hiring a traditional engineering firm?
Scope and process rather than credentials. A traditional firm sells hours against a proposal. This is a fixed catalog of defined deliverables with a fixed intake for each one, ordered online. The engineering is the same engineering and the seal is the same seal. What changes is that you know what you are getting before you start.
Can you tell me what the letter will conclude before you write it?
No, and that is the point of a seal. An engineer seals what the evidence supports, which means the conclusion follows the review rather than the order. What can be stated in advance is exactly what will be examined and exactly what the document will contain.
Who is behind Sealed Engineering?
Sealed Engineering is a brand of 254 Engineering Services LLC, and all engineering work is performed under that entity's license and registration. The brand exists to make a defined set of deliverables orderable online rather than negotiated.
Founding customers get the first turnaround slots
Tell us what you order, how often, and where in Texas you work. Waitlist members are contacted first when ordering opens, in the order they joined.
Opening soon. Founding customers get first turnaround slots.