--- title: "Pelles | AI for Preconstruction & Estimating Teams" description: "Apps, agents and cited answers for trade contractor estimating teams: every addendum compared, takeoffs checked against drawings, proposals from your catalogs." canonical: https://www.pelles.ai/preconstruction last_updated: 2026-10-24 --- Pelles for preconstruction # Bid more jobs. Miss less scope. Your estimating team’s apps, agents and answers in one place: the bid set read front to back, every addendum compared, and takeoffs and proposals checked against the documents. **Your seniors review instead of read.** [Book a demo](https://www.pelles.ai/contact) [See the apps](#apps) - [**Feeder Schedule** Example Every run length, checked against the takeoff. F4 · 44 ft short in Accubid](#apps) - [**Estimate & Proposal** Example Your catalogs in, a priced proposal out. Proposal P-2291 · $227,140](#apps) - [**Pipe Spec Matrix** Example The spec book, by service and size. Hot water 2½"+ · now steel](#apps) - [**Estimating Agent** Agent Reads every addendum overnight. On every new addendum](#agent) 01 Apps Pelles Build ## Apps for how you bid. Built around your process. Four examples, from a feeder schedule checked against the takeoff to a takeoff assistant on the plans. Each starts as a sentence to Pelles Build and your own drawings or spreadsheet; yours is whatever your team needs. Examples Feeder Schedule Estimate & Proposal Pipe Spec Matrix Takeoff Assistant Your app (Illustration: An example app, Feeder Schedule: Every feeder with its run length from the Accubid takeoff, checked against the one-lines and the drawings before the bid goes out. Built from the sentence: Turn our feeder schedule into an app that checks every run length against the Accubid takeoff.) - **What it does** Every feeder with its run length from the Accubid takeoff, checked against the one-lines and the drawings before the bid goes out. - **Reads from** Accubid takeoff and Drawings, kept current. - **Built for** An MEP contractor, from one sentence and its own spreadsheet. - **Yours to change** Ask the builder for a new view, column or check, in plain words. [How teams build their apps](https://www.pelles.ai/pelles-build) 02 Agents Always on ## The addendum lands at 2 AM. The bid is updated by six. An estimating agent watches your open bids. When the GC sends an addendum, it compares it with the set, re-checks the takeoff and drafts the question, so the morning starts with answers. (Illustration: At 2:06 AM the GC emails Addendum 3 to the estimating agent. It compares the addendum with the bid set, checks the change against the takeoff, reviews the bid form and drafts a pre-bid question. In the morning it messages the estimator in Teams and texts them, and sends the question once they reply yes.) Play again - **Always on** Runs on a schedule, or wakes when an email or a text lands. - **Wherever you are** Text it, message it in Teams, or email it. - **Real, multi-step work** Reads the documents, checks your apps and systems, drafts the next step. - **Your team in charge** Agents draft for your review, and use only the systems you give them. **Ready to run** [See all agents](https://www.pelles.ai/pelles-agents) - **Bid Hunter** Cross-Channel Opportunity Scout Daily scout of SAM.gov, state portals, BidNet, owner & GC invitations — filtered to your trade and geo. - **Bid Qualification Agent** Prequal Form Assistant Prequal questionnaires answered with your firm’s data — never generic AI, every answer cited. - **Single-Line Drawings Expert** Electrical One-Line Specialist Reads your one-lines. Hands you a validated equipment schedule — feeders, AIC, breakers — NEC-cited. 03 Answers Pelles Core ## Ask the bid set. Get the page back. DoubleCheck reads every drawing, spec, addendum and contract in the set, so an estimator’s question gets an answer with the page it came from. - Who furnishes the VFDs for AHU-1 through AHU-6? Division 23 furnishes them; Division 26 installs and wires them. The mechanical schedule and the spec agree. 23 05 13 · §1.4 · M-601 - Is there a liquidated damages clause, and how much? $2,500 per calendar day after substantial completion, capped at 10% of the subcontract. Subcontract · Art. 9.3 · p.14 - What in Addendum 3 touches our scope? Four changes: feeders F4 and F9 upsized, panel LP-2 relocated, and the generator feeder added to Alternate 2. Addendum 3 · E-401, E-601 - Are aluminum feeders allowed? Yes, for feeders 100 A and larger, with compression lugs. Smaller feeders must be copper. 26 05 19 · §2.2.B · p.318 [See DoubleCheck](https://www.pelles.ai/pelles-core#doublecheck) Customer story - Watch video 1:12 ### More bids. Same team. Greater confidence. > “If somebody is considering Pelles, I would say get onboard! Because once you try it there’s no going back. The AI platform is outstanding.” **Tim Jonas** Executive Director of Estimation, Kidwell [Read Kidwell story](https://www.pelles.ai/kidwell-case-study) ## Connected to what you run. Nothing to rip out. - Trimble Accubid - Procore - Autodesk Construction Cloud - Bluebeam - Excel - Outlook - Text message, for agents [See all 25+ integrations](https://www.pelles.ai/integrations) ## Built for the people who check the work. SOC 2 Type II attested Never trained on your content AES-256 at rest TLS 1.2+ in transit Tenant isolation [Open the Trust Center](https://trust-center.pelles.ai) [Security and trust](https://www.pelles.ai/security) - **Every answer cites its page.** Open the sheet or section behind any answer, report line or change. - **Your permissions, inherited.** People see the projects and documents they can already open, nothing more. - **Your team stays in charge.** Agents draft the RFI, the change event or the update for your team to review, and use only the systems you give them. ## What teams ask before they start. How does Pelles help preconstruction teams? It reads the whole bid set, drawings, specs, addenda and the contract, and answers your estimators’ questions with the page cited. Compare shows every change between addenda, agents watch for new ones overnight, and apps built on Pelles hold your takeoff checks, spec matrices and proposals. Does Pelles replace our estimating software? No. Your estimators keep pricing in Accubid or the tools you use today. Pelles reads the documents, checks the takeoff against them and builds apps around your process, so the people who price the job spend their time on judgment instead of reading. What does an estimating app on Pelles look like? Whatever your team runs in spreadsheets today: a feeder schedule checked against the takeoff, a pipe spec matrix, a proposal built from your own catalogs. Pelles Build turns the spreadsheet and the process around it into an app your whole team shares. What documents can Pelles read? Drawings, specifications, addenda, contracts, bid forms, RFIs and schedules, from Procore, Autodesk Construction Cloud, SharePoint, Box or an upload. Every answer links back to the sheet or section it came from. Is our project data secure? Pelles is SOC 2 Type II attested, encrypts your data at rest (AES-256) and in transit (TLS 1.2+), keeps every customer’s data isolated, and never trains on your content. People see the projects and documents they can already open. ## Pelles for every team - [**Operations** Submittals, change orders and schedules, chased overnight.](https://www.pelles.ai/operation-teams) - [**VDC & prefab** Start-up, spec matrices and shop schedules from your own process.](https://www.pelles.ai/vdc-prefab) - [**Field** Answers by text, and daily reports written by five.](https://www.pelles.ai/field) - [**Executives** Every job’s health, cash and change orders in one Monday brief.](https://www.pelles.ai/executives) ## Bring a bid you’re pricing now. See what it finds. Tell us how your estimating team works. In a 20-minute call we’ll show the apps and agents teams like yours run, on a bid like yours. - SOC 2 Type II attested - A 20-minute call - Built around how you work Last updated October 2026