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For homeowners and private builders

Know what you are paying for before you build

Upload the contractor's estimate, the plans or the contract. MEXUM reviews them against the building code of your region and returns a clear written conclusion within 48 hours — what is missing, what does not add up and what to ask before you sign.

Upload a document →Choose your project
48 hwritten conclusion in PDF
20 regionslocal code frameworks
Architectural plans on a tableIndependent document review
PLANS · ESTIMATES · CONTRACTS
Why MEXUM

Every project is safer with a second pair of eyes

New build, renovation or a property you plan to improve and sell: the largest losses start in documents long before work starts. Choose your situation to see what we check.

What a review looks like

See how a review reads

Pick a sample document. The conclusion lists each finding, its severity and what to do about it.

—waiting
    Demonstration on a fictional sample
    What you receive

    A conclusion you can take to the table

    Written in plain language, with the reference to the code behind every finding, so the conversation with your contractor stays factual.

    1

    Findings by severity

    Critical, review and no-finding items, so you know what matters first.

    2

    Code references

    Each finding points to the specific code or standard of your region.

    3

    Missing scope

    Items that appear in the drawings but not in the estimate, and the other way round.

    4

    Price checks

    Quantities, duplicated lines and unit rates that fall outside the market range.

    5

    Contract terms

    Payment schedule, acceptance, change orders and warranty wording.

    6

    Questions to ask

    A short list of items to confirm or renegotiate before you sign or release a payment.

    Documents

    What you can upload

    Anything that decides what the project costs and how it is built.

    How it works

    Four steps, nothing to install

    Everything happens in your account: upload, review, conclusion and a place to keep it.

    01

    Create an account

    Choose the region of your project so that the right code framework is used.

    02

    Upload documents

    PDF, DOCX, DOC, XLSX or XLS, up to 50 MB per file.

    03

    Specialist review

    Fifteen disciplines read the documents together and compare them with each other and with the code.

    04

    Reasoned conclusion

    A PDF within 48 hours: findings by severity, code references and a short plain-language summary.

    Your region

    Reviewed against the code that applies to you

    You choose the region of the project. Examples of the frameworks we use are below; the full list of twenty regions is on the home page.

    IRC · IBC (United States)NBC · provincial codes (Canada)Eurocodes (European Union)Building Regulations (United Kingdom)NCC (Australia)SBC (Saudi Arabia)Local codes of 20 regions

    See all regions →

    Plans

    Start with one document, add reviews as the project grows

    Prices are in US dollars and are paid securely by card through Stripe in your account. A single check needs no subscription.

    Single check
    $99

    One estimate, plan set or contract

    • 1 document check
    • PDF report
    • Error and risk detection
    • Fast results
    Choose
    Home audit
    $299

    Private homes and renovations

    • Up to 3 reviews
    • Detailed PDF reports
    • Home and renovation projects
    • AI recommendations
    Choose
    Full review
    $799

    Large renovations and new builds

    • Up to 7 reviews
    • PDF reports
    • AI specialist consultations
    • Large renovations and new builds
    Choose
    Premium review
    $1,599

    Full coverage of a project

    • Unlimited reviews
    • PDF reports
    • Video calls with AI specialists
    • Priority processing
    • Full project coverage
    Choose

    Plans and prices are also shown in your account before you pay.

    Questions

    Frequently asked questions

    If your question is not here, ask Victoria in the chat.

    What exactly do I receive?
    A written conclusion in PDF within 48 hours. It lists every finding with its severity, the reference to the code or standard of your region, a plain-language explanation, and the items worth raising with your contractor before you sign or pay.
    Which documents can I upload?
    Contractor estimates and bids, construction contracts, plans and drawings, specifications, change orders, pay applications and permit submissions. Formats: PDF, DOCX, DOC, XLSX and XLS, up to 50 MB per file.
    Does MEXUM replace an architect, an engineer or the building authority?
    No. MEXUM is an independent pre-check of documents. It does not replace approval by the building authority or the work of a licensed professional. Its purpose is to help you find gaps and inconsistencies early and ask better questions.
    Which countries and codes are covered?
    Twenty regions across the Americas, Europe and Asia-Pacific, each reviewed against its own code framework, for example the IRC and IBC in the United States, the NBC in Canada and the Eurocodes in the European Union. Always confirm the edition in force with your local authority.
    How much does it cost?
    A single check is $99. Plans for homes and renovations start at $299 and cover several reviews per project. Prices are in US dollars, paid by card through Stripe, and shown in your account before you pay. No subscription is needed.
    What happens to my documents?
    They are used to prepare your review and stay in your account until you delete them. Service providers that process them are listed in the Privacy Policy.
    MEXUM

    Check your documents before you commit

    A written conclusion in PDF is delivered within 48 hours.

    Upload a document →Sign in