Know what can cost you before you sign.
You priced the job. Redline makes sure the contract describes the same deal — comparing the GC's paper against your bid, your scope, your trade, your standards, and the rules where you're building. Then it shows you exactly what needs attention before the risk becomes yours.
No credit card · Use your own contract · Full redline included · Private cloud — never used to train shared AI
General contractor or owner? Sponsor reviews for your whole bid list — no sub is ever charged.
What you priced
Proposal — Exclusions
Floor preparation — EXCLUDED
What you're signing
Subcontract §6.3
“Subcontractor shall provide all substrate preparation necessary…”
Redline detected
Unpriced scope · Critical
Grinding, leveling, patching and moisture mitigation — not in your price.
The contract doesn't have to be “bad” to cost you money.
Sometimes the most expensive provision is simply something you never included in your price.
You priced
One mobilization
Contract says
GC may freely resequence work.
Risk — Additional mobilization, labor and supervision.
You priced
Floor preparation excluded
Contract says
You own substrate preparation.
Risk — Grinding, leveling, patching and moisture mitigation.
You priced
Normal working hours
Contract says
Overtime and weekends may be required.
Risk — Unpriced labor premium and acceleration.
You priced
Installation only
Contract says
Delegated design required.
Risk — Engineering, professional liability and design exposure.
Redline doesn't just read the contract.
It learns the job.
Before recommending changes, Redline understands the things the contract cannot tell it — then compares those answers against what you're being asked to sign. The contract answers most questions itself; you only answer what only you can know.
“Can't I just upload this to ChatGPT?”
Yes. And you'll probably get useful information. But reading the contract isn't the hard part — knowing what to compare it against is.
General AI
- Reads what you upload.
- Needs you to provide the context.
- Needs you to know what to ask.
- Starts from scratch every time.
- Produces an analysis.
Redline
- Knows your company's standards and non-negotiables.
- Knows your bid, your exclusions, and your trade.
- Checks the rules where you're building.
- Flags incorporated documents you were never given.
- Remembers the prior agreements you've run through it with this GC.
- Finds where your price and the contract don't match.
- Creates the actual redline — PDF and Word.
- Preps the message that explains the changes to the GC.
- Stores the final language for the next negotiation.
The difference isn't the AI. It's everything Redline knows before the AI starts.
One contract. Multiple layers of risk.
Redline finds where those layers disagree.
An electrical contract shouldn't be reviewed like a flooring contract.
Redline understands the work behind the words.
Electrical
Switchgear · shutdowns · controls · commissioning · temporary power
Flooring
Moisture · substrate · prep · protection · mobilization
Drywall
Rated assemblies · backing · engineering · patching · finish levels
HVAC
Controls · startup · TAB · commissioning · equipment lead times
AV / Low voltage
Programming · network integration · equipment · commissioning · licensing
Roofing
Substrate · penetrations · testing · weather · warranty
Built around CSI trade classifications — your workspace starts shaped like your business.
The GC's contract isn't the only thing governing the job.
Where you're building can change the rules. Redline applies the project state's construction-law context to every review — and a clause being in the contract doesn't automatically mean the law will enforce it.
Where the law is genuinely in play, Redline says exactly why attorney review is warranted — not a generic disclaimer.
Know when the GC moved the line.
Redline benchmarks the contract's structure against recognized frameworks like AIA and ConsensusDocs — separately from your standards and from the law. A benchmark isn't a statute; Redline never confuses the two.
Stop negotiating the same GC from scratch.
If you've reviewed this contractor before, Redline remembers — which changes they accepted, which they rejected, and what finally got signed.
Contract #15 shouldn't require relearning everything you discovered in contracts #1–14.
Your contract standards shouldn't live in someone's head.
Define your positions once. Redline applies them consistently to every agreement — and flags the clause that crosses your line.
Retainage
Your maximum: 5%
Payment
Your terms, applied to every job
Indemnity
Flag anything beyond your coverage
Mobilization
Additional mobilization = change
Consequential damages
Mutual waiver
Insurance
Required limits checked against what you carry
Finding the problem is only half the job.
Redline helps your team explain what needs to change, why it matters, and what language you're proposing.
01
Upload
Drop the contract — Redline reads it, page by page.
02
Redline learns the job
Confirm what it read; answer only what only you know.
03
Risks & conflicts identified
Where the paper doesn't match the deal you priced.
04
Proposed language created
Tracked redlines — annotated PDF and Word.
05
Negotiation message prepared
A GC packet built to be said yes to.
06
Send to the GC
Or flag findings to a teammate for their call first.
07
Final terms stored
Every version, every decision — remembered next time.
See the actual output
A real run, on a full-size contract.
We ran a fictional 101-page subcontract and the sub's proposal through the same engine your contract goes through. Every finding cites its page and quotes the contract language. Open it and judge the work yourself.
Fictional parties and project · real engine output · nothing staged
42
findings on 101 pages
25 flagged high
8
bid-vs-contract conflicts
scope the sub never priced
6
state-law findings
cited to the project's statutes
3
insurance gaps
required vs. the coverage on file
The best construction dispute is the one you never have.
$60.1M
Average value of surveyed North American construction disputes, 2024
12.5 months
Average time to resolve
#1
Contract and specification reviews — ranked the most effective claims-avoidance technique
Source: Arcadis Global Construction Disputes Report.
Your dispute doesn't need to be worth $60 million to destroy the profit on a good project. One scope gap. One acceleration issue. One unpaid change. One bad indemnity obligation.
Prevention is cheaper than fighting about it later.
Why this exists
Nobody wins when a project goes to litigation.
Not the owner, not the developer, not the general contractor, not the subcontractor. Almost every dispute was sitting in the paper the day it was signed. Redline is a thought partner for the contract side of the job: it surfaces the problem while it is still a conversation, so the people who build can focus on the construction.
Subcontractors
Know what the paper adds to the price you bid — before you own it.
General contractors
Buy out faster with uniform, reasoned asks instead of ad-hoc redlines.
Developers & owners
See that every subcontract was actually ready before the job starts.
Counsel
Get organized questions and proposed language, not a blank 120 pages.
Building the job for someone else? See how GCs and owners sponsor reviews for a whole bid list.
Redline doesn't need to save every contract.
It needs to catch one thing you would have missed.
A single unpriced scope obligation, acceleration requirement, payment issue or change-order dispute can cost more than a year of Redline.
Your contracts never touch public space.
Most contract AI is shared, multi-tenant software — your agreements and pricing live on someone else's platform. RCS is the opposite: it runs inside your own private cloud, firewalled in an instance you control, where competitors, the public, and other vendors can never see your numbers — and they never train a shared model.
Read our full security posture
Lives in your instance
Your workspace runs inside your own private cloud account. Contracts, quotes, and pricing sit on infrastructure you own and control — not on our servers, and not in a shared, general-purpose AI tool.
Firewalled from the world
What you review is private to your team. No competitor, no vendor, and no member of the public can see the contracts you're working, the prices in them, or what your job is worth.
Never trains shared AI
Your documents are never used to train public or shared models. What you upload is reviewed and stays yours — nothing leaks into a general AI system that someone else can query.
You hold the keys
Encrypted in transit and at rest, access-controlled to your team, and deletable on your schedule. You decide who can see what, and for how long.
In construction, your numbers are your edge. RCS is built so they stay that way.
RCS runs on AWS and is powered by Claude, the frontier AI from Anthropic — deployed inside your own private cloud, so your contracts and pricing get enterprise-grade AI review without ever leaving your house.
“I hope we didn't miss anything.”
“We know what we're signing.”
Know what's at stake for the margin you won — before you sign.
We're new, and we're not going to pretend otherwise.
Redline is early. Our founding customers are running real production subcontracts through it right now. When we have named results and numbers we can stand behind, we'll publish them — with the customer's name on them. Not before.
Until then, judge us the way you'd judge any sub bidding your work: on the actual output. Run one of your own contracts through it and look at what comes back.
Run a single contract for $399. If the redline isn't worth it, that's the end of it.
Production runs in your own private cloud. Never used to train shared AI.
Not a law firm, not legal advice, and we flag where a competitor leads.
Construction law, in plain English.
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Find out what's hiding in it before you sign.
Your contract · Your project · Full analysis · No credit card
