Try it free · no account

Free AI Construction Estimate Generator

Describe a residential job the way you would say it out loud. Clamp turns it into an itemized direct-cost draft: assemblies, quantities, and researched baseline rates you can inspect line by line.

Turn a job description into a review-ready, priced construction estimate draft. We will email you a copy too.

Want to see a finished one first? → 5×8 bathroom remodel, fully itemized

We send one email with your draft. See our Privacy Policy.
How this draft is made

Clamp matches your description to construction assemblies and prices them from researched baseline rates using an automated system. The result is a direct-cost draft for you to review and edit, not a bid, not a quote, and not a guarantee of what any contractor will charge. Rates are a median United States basis and will differ from your local market.

Baseline rates shown. In the app, your saved rates take over.
No specific scope detected. Try adding more detail, such as rooms, sizes, and materials.

You've used your 3 free web estimates

They were emailed to you. Get 3 more AI drafts free in the app.

Download on the App StoreGet it on Google Play
Reading the scope…
A thoughtful draft can take a few minutes. Please keep this page open.

Your estimate draft

What we heard

Assumptions to review

    Things to consider

      This is not a price

      It is an estimate of job cost: labor and materials only. No contractor can do this work for job cost. Overhead and profit go on top, and how much depends entirely on what that contractor's business requires to operate.

      How contractor markup works →

      What this scope is likely to be quoted at
      Estimated job cost, before any markup

      Illustrative contractor profiles, not recommended markups. Higher markup means more business behind the job. It does not by itself mean better work, and a lower markup does not by itself mean a better deal. Your correct markup depends on your actual overhead, sales volume, owner compensation, and profit goal.

      Selected profile
      job costs · no markup

      Markup presets are examples, not market averages. Actual contractor markup varies by overhead, business model, volume, and profit target. In Clamp, your saved rates and your calculated markup take over.

      Your full draft is on its way to your inbox.

      How it works

      You write one paragraph about the job. Clamp matches it to construction assemblies, derives quantities from the dimensions you give, and prices each line from researched baseline rates at a median U.S. market basis. The draft that comes back is itemized by trade with labor and materials split out, the same structure a contractor would build by hand.

      Here is a real prompt, exactly as written:

      Remodel a 5 by 8 foot hall bathroom, keeping the same layout. Replace the existing 60 by 30 tub with a new tub in the same location, and install a tiled tub surround to the ceiling, about 65 square feet of wall tile. New vanity with countertop and faucet, new toilet, replace the exhaust fan, swap two light fixtures, and paint the walls and ceiling. Install about 28 square feet of porcelain floor tile in the open floor area.

      What the output looks like

      These rows come from the reviewed estimate that prompt produced, published in full on this site:

      Excerpt from the published 5x8 bathroom estimate
      ItemQtyUnitTotal
      Plumbing
      Shower/Tub Valve Set1ea$385.00
      Toilet Allowance1ea$450.00
      Carpentry
      Vanity Install Labor1.25ea$525.00
      Painting
      Interior Paint Apply Labor250sf$437.50
      Demo & Prep
      Interior Demolition Labor50sf$175.00
      Direct job cost, all 51 rows$19,867.38

      See the full itemized example →

      A draft is not a bid

      The numbers are direct job cost: labor and materials, with no contractor overhead or profit. A working contractor adds markup to cover both, and how much depends on their overhead, crew, and profit target. On this same $19,867.38 example, three illustrative markups spanning that range:

      Illustrative selling prices on the published example
      ProfileMarkupSelling price
      Low-Overhead30%$25,827.59
      Established50%$29,801.07
      Full-Service80%$35,761.28

      Profile names are illustrative labels, not measured pricing practices; the right markup comes from a contractor's own overhead and profit numbers. Local rates also vary from the median basis used here.

      To see how the percentage works: markup vs margin, on this exact job.

      Where the prices come from

      Every rate traces to a researched baseline documented in How Clamp estimates are built. The published example above ships with its complete data files, so every figure can be checked.

      Clamp is also a full job workflow app for residential contractors on iOS and Android: leads, design agreements, estimates, proposals, change orders, and invoices. Learn about the app.