Send us the plans. We'll send back the numbers.
We're the estimating, CAD, and documentation team for contractors who don't have time to be their own back office. Fixed pricing, confirmed before we start.
Prefer to talk first? Call (770) 355-8848
Three things. Done all the way.
Not a jack-of-all-trades shop. Estimating, CAD & engineering, and documentation. That's it, and we do all three well enough that you stop thinking about them.
Estimating
& takeoffs
Itemized costing and quantity takeoffs pulled straight from your blueprints in Bluebeam, priced and confirmed before a single hour of work starts.
CAD
& engineering
Drafting, redlines, and as-builts in AutoCAD and Revit, plus stamped structural, civil, and electrical work through our engineering team, licensed in all 50 states.
Documentation
& compliance
RFIs, submittals, and change orders logged in Procore and kept audit-ready, plus the active SAM.gov registration that clears you for federal work.
One call reaches all fifty states.
Our engineering team is licensed in every state highlighted, so a stamped drawing is never the thing holding up your schedule.
Registered U.S. federal government contractor.
Horizon Stone Pro LLC is actively registered in the System for Award Management, the official U.S. government registry for organizations that do business with federal agencies, keeping us eligible to support federal, state, and local government construction projects.
NAICS: 236220, 236210, 237310, 237990, 541330, 541340, 541611, 541614, 541990, 561110, 561210, 561499
Download Capabilities StatementServices and sectors we cover.
We handle the technical and admin work behind every project, start to finish, across every major construction sector.
Design & engineering
Engineering services
Stamped drawings, plus structural, civil, and electrical review, through our engineering team.
CAD drafting
Redlines, as-builts, layout displays, and detail drafting from your existing plan set.
Estimating & takeoffs
Estimating & bid support
Itemized costing and proposal assembly.
Quantity takeoffs
Precise material and equipment metrics, ready for pricing.
Project & document management
Document control
Submittal and RFI logs.
Project coordination
Stakeholder communication flows.
Scheduling support
Look-ahead tracking and delay records.
Project support plans
Monthly or per-project arrangements built for your pipeline.
Industries we support.
Trade experience across every major construction sector.
We become the back-office extension your team needs to stay productive.
Built for contractors who demand execution.
Our workflows scale your capacity immediately and cut the back-and-forth between a bid and a signed contract.
Minimize payroll overhead
No benefits, onboarding cost, or full-time commitment.
Organized, verifiable records
Change logs and drawing sets stay complete and easy to audit.
Faster turnarounds
Predictable delivery windows keep momentum on active jobsites.
Standard takeoffs and estimates delivered within 2–3 business days of scope confirmation.
If a deliverable doesn't match agreed scope, we revise it at no additional cost.
A single project manager owns your account from intake to delivery.
Want the full breakdown of who's on your project, where we're based, and how a request moves start to finish?
Who touches your project, in what order.
No subcontractor mystery, no ticket queue. Here's the actual structure behind every deliverable: the roles, the tools, and how your files are handled from the moment you send them.
Director of Operations
Owns the account relationship, confirms scope and pricing with you directly, and signs off before anything ships back.
Project manager
Your single point of contact. Breaks your request into tasks, assigns them internally, tracks the deadline, and answers your emails.
Estimating & takeoffs team
Reads the plan set, pulls quantities in Bluebeam, and builds the itemized cost sheet you'll receive.
CAD & drafting team
Handles redlines, as-builts, and detail drafting directly in AutoCAD or Revit, matched to your existing plan set.
Document control
Logs RFIs, transmittals, and change orders in Procore so the paper trail stays audit-ready.
Engineering team
Our licensed engineering team, covering all 50 states, handles the actual stamping and calculations behind every drawing that needs one.
What we use, and what it's for.
Every tool below is one your own PMs would recognize, not a proprietary portal you have to learn.
AutoCAD & Revit
Drafting, redlines, as-builts, and detail work, delivered in the native file format you already use.
Bluebeam
Quantity takeoffs and markups, measured directly off your PDF plan set for the estimate you receive.
Procore
Document control and project coordination. RFIs, submittals, and transmittals logged where your team can see them too.
Primavera P6
Scheduling support and look-ahead tracking for jobs where the timeline itself is part of the deliverable.
OneDrive
Every client file is backed up here for the duration of the engagement.
Stripe & QuickBooks
Invoicing and payment go through Stripe; QuickBooks keeps the books, so every charge traces back to a real invoice.
What happens to your files.
You send it
Upload through the form, or share a OneDrive, Google Drive, or Dropbox link. Nothing is opened by anyone outside the assigned team.
NDA, if you want one
We'll sign one before reviewing sensitive material, at no extra charge and no delay to your timeline.
Closed out on request
Files are handed off in your preferred format; backups are purged from OneDrive whenever you ask.
Where things actually stand, no filler.
You're vetting who you send blueprints to. Here's what's true about our operation right now, not a rounded-up version of it.
If any of this changes, we'll update this page. If you want documentation on any of it, ask, and we'll send it before you sign anything.
Simple pricing.
Final price depends on scope. Here's a starting range before you request a quote.
Per-project
One takeoff, estimate, or CAD request.
- Fixed price, confirmed upfront
- Delivered in 48–72 hours
Monthly support
Ongoing back-office support across active jobs.
- Set monthly hours, all services
- Priority turnaround
- Dedicated project manager
Dedicated support
Near full-time extension for high-volume pipelines.
- High-volume, multi-project
- Custom reporting cadence
How we support your project, step by step.
Each step names who does it, what tool it happens in, and what you get out of it, so there's no guessing where your request is at any given moment.
Send request
Upload blueprints, spec books, or describe what you need done, through the form or a shared drive link.
Scope review
We confirm exactly what's included, flag anything unclear, and send fixed pricing in writing before any work starts.
Core execution
Estimators, drafters, or our engineering team build your takeoffs, drawings, or document registers in the actual software listed below.
Scope-match check
Before anything ships, the Director of Operations checks the deliverable against the written scope from step 2.
Direct delivery
Clean files in your requested format, sent straight to you or your project folder. No portal login required.
Before you reach out.
A dedicated project manager reviews scope, coordinates the work, and stays your single point of contact through delivery.
Blueprints and specs are used only to complete your request. We'll sign an NDA before reviewing sensitive material.
If it doesn't match the scope we confirmed in writing, we revise it at no additional charge.
48–72 hours from scope confirmation. Monthly and Dedicated Support clients get priority ahead of the standard queue.
Yes. Support is delivered remotely and covers contractors, developers, and owners across the United States.
PDF plan sets, DWG or DXF CAD files, and Excel spreadsheets cover most requests. Send what you have, we'll flag anything we can't open before work starts.
AutoCAD and Revit for drafting, Bluebeam for markups and takeoffs, Procore for project and document coordination, Primavera P6 for scheduling, and Outlook for day-to-day communication.
Yes, before reviewing sensitive material if you'd like one in place. Your plans and specs are used only to complete your request and are never shared beyond the team working on it.
Yes. We're an active SAM.gov registrant (UEI T451VASXDSR7, CAGE 22J81), registered as a small business, ready as prime or subcontractor under NAICS codes covering commercial and industrial construction, heavy civil, engineering services, drafting, and construction management consulting.
Yes. That's the whole point of our Transparency page. It lists every role involved (project manager, estimators, drafters, our engineering team), the exact software behind each deliverable, and the step-by-step path your files take from upload to delivery.
Tell us what your team needs.
Describe your current workflow bottleneck. We can take on full estimating runs, drafting updates, or ongoing documentation support.
What we need from you
- Blueprints, spec books, or a link to the plan set
- The scope you want covered and your deadline
- Any format or software preference for the deliverable
Request received.
A project manager will review your details and follow up shortly.