Structural drawings
Framing plans, foundation plans and shear-wall schedules keyed to your architectural set — sheet-numbered and plan-check ready.
Foundation engineering · California
Cracks, Settling or a New Build — Get a Foundation Design You Can Permit.
Repair designs, underpinning, new foundations and retrofit details — engineered from your photos, reports and plans, with a fixed-price quote up front.
What's going on with the foundation?
60 seconds · Free · No obligation
Step 1 of 4
What's going on with the foundation?
60 seconds · Free · No obligation
Step 1 of 4
Licensed PE engineers · CA & NV
Every project is reviewed and approved by a licensed engineer — never automated.
Signed & sealed
Stamped drawings and calculations where your jurisdiction requires them.
Serving California
Statewide, CA and NV
No commitment until you accept
Free scope review, one fixed price in writing, corrections included per proposal.
When a foundation needs an engineer
- Cracks that are widening, offset, or paired with sticking doors and sloping floors
- A repair contractor's bid that requires "an engineer's detail" to permit
- Underpinning, piers or new footings of any kind
- Additions and ADUs bearing on or next to existing footings
- An inspector or lender asking for an engineer's evaluation
Sound familiar? Get My Free Quote →
How it works
From this page to permit-ready plans.
- 1
Today — about a minute
Answer a few questions & tell us where to send the quote
Plans, photos, sketches or a permit letter. Don't have everything? Send what you've got.
- 2
Within 1 business day
Free scope review → fixed-price proposal
A defined scope, one price and a stated turnaround. Your quote stays valid for 30 days.
- 3
After you accept online
Engineering starts — track it live
E-sign, pay the deposit by card or ACH, and watch status through delivery on your dashboard.
Your quote
One fixed price. In writing. Before you commit.
- Free scope review — you pay nothing to find out what your project needs
- A fixed price for a defined scope; additional work is only ever quoted, never surprise-billed
- Your quote stays valid for 30 days while you line up your contractor
- Plan-check correction rounds included per the proposal
Pricing, honestly
What actually drives the price
No two projects price the same — these are the factors our engineers scope. You get one fixed number after a free review, not an hourly meter.
Repair vs. new design
A localized repair detail is a smaller scope than a full replacement or new foundation.
Soil information
Where a geotechnical report exists we design to it; where it doesn't, code values or a soils referral apply.
Access and documentation
Crawlspace photos, crack maps and dimensions do a lot of the work — we'll tell you exactly what to capture.
Scope of the structure above
One-story loads and two-story loads land differently on the fix.
The risk is on us: free scope review, fixed price, and no commitment until you accept.
Get My Free QuoteDeliverables
What you receive
A complete, engineer-reviewed structural package — the same documents a full-service firm produces, delivered through your project dashboard.
What you receive
Structural calculations
Gravity and lateral calculations that match the drawings, member by member, so plan checkers can follow the load path.
Details & connections
Beam-to-post, holdown, footing and connection details your framer can build from — no guesswork on site.
Plus permit-correction responses and revisions through the same project. Get My Free Quote →
Who reviews your engineering
A licensed structural engineer signs off on every set.
Commercial, data center and residential structures across California and Nevada. Produces and reviews code-compliant structural drawings and calculations, coordinating with architects, contractors and plan checkers.
- CBC
- IBC
- ASCE 7
- ASCE 41
- AISC
- ACI 318
- NDS
- TMS
Why JAT
Built like software, reviewed like a firm.
The engineering is the same discipline you'd expect from any licensed structural firm. The way you order it, track it and receive it is not.
Comparison with a traditional engineering engagement
| The usual way | With JAT Engineering | |
|---|---|---|
| Getting a quote | Phone tag, site visit scheduling, waiting weeks for a proposal | Upload plans or photos online; defined scope and fixed price after review |
| Knowing where things stand | Emails and voicemails | One status per project, visible in your dashboard 24/7 |
| Documents & revisions | PDF attachments scattered across inboxes | Versioned drawings, calcs and permit comments that stay with the project |
| Plan-check corrections | A new conversation and often a new invoice | Submitted back through the same project — rounds included per proposal |
| Repeat projects | Start from scratch every time | Duplicate a past project or use a template — under two minutes |
| Paying | Paper invoices and checks | Card or ACH online; deposit to start, balance before final release |
Before you ask
Do you inspect the foundation in person?+
Most repair designs start from photos, measurements and any reports you have — the intake tells you exactly what to capture. If field verification is genuinely required, we'll say so at scope review.
My repair contractor gave me a bid. Why do I need you?+
Cities permit engineered repairs, not bids. We produce the design and details the permit needs — and an independent design also gives you a check on what's actually necessary.
What does a foundation design cost?+
Scoped and quoted per project, free, within one business day. Fixed price, no commitment until you accept.
Cracks, Settling or a New Build — Get a Foundation Design You Can Permit.
A few quick questions, a free scope review, and a fixed-price quote — usually within one business day.
No commitment required to submit a project for review.