Preliminary Estimate
Build AI Estimating delivers preliminary estimate services built for the moments before a project is fully defined, whether you’re sitting at 30%, 60%, or 90% drawings, working through incomplete plans, or just trying to confirm a project fits your client’s budget before moving forward. Early-stage decisions carry real weight, so our estimators focus on speed without sacrificing the defensibility of the numbers. Backed by hands-on estimating experience and AI-assisted verification, we help you move from rough concept to a workable budget fast.
We understand that every client has different needs, and we shape our services around them. Our clients include:
- General Contractors
- Project Managers
- Subcontractors
- Investors
- Developers
- Homebuilders
- Architects
- Owners
What Is a Preliminary Estimate, and How Does It Help?
A preliminary estimate, sometimes called a conceptual estimate, forecasts a project's likely cost before detailed drawings even exist. It helps contractors, developers, builders, and owners decide how to allocate funds, set an initial budget, and compare early design options against each other.
Since these estimates happen before design and construction begin, they're built primarily from historical project data, adjusted for time, location, and size, and grounded in solid estimating principles.
How Our Preliminary Estimates Help You
- Manage budgets and support loan applications
- Set realistic cost limits for architects and designers to design around
- Get an early read on likely material and labor costs
- Plan confidently for the next project phase
- Support negotiations with contractors and subcontractors
Quoting to Your Clients Made Simple
Our preliminary estimates are based on floor area, making them easy for clients and architects to interpret at a glance. Our bill of materials includes:
- Total project area (square feet or square meters)
- Linear measurements for structures like walls
- Area breakdowns for individual units, rooms, or floors
Types of Preliminary Estimates
Different stages of a project call for different levels of estimate accuracy, depending on how much information is available:
Rough Order of Magnitude
The earliest estimate in a project's lifecycle, used to gauge feasibility and support early project selection decisions. Accuracy typically falls within a range of -50% to +50%.
Ballpark Estimate
Built from preliminary drawings and specs, this estimate helps contractors define scope for clients so they can plan around their budget. Accuracy generally lands within 20% of final cost.
Budget Estimate
Prepared once a project reaches the planning stage, using historical data to break down major cost components by line item. Accuracy typically ranges from -10% to +25%.
Definitive Estimate
A fully itemized estimate built from detailed, developed project plans, offering the highest level of accuracy, generally within -5% to +15%.
What's Included in Our Preliminary Estimate
Our estimates break down quantities across the following divisions:
- Preliminaries
- Substructures (footings, foundations)
- Superstructures
- External/Internal Finishes
- Fittings
- Mechanical (HVAC, ductwork)
- Plumbing (pipes, drains, fixtures)
- Electrical (cable, conduit, lighting)
- Labor
- Man-Hours
- Contingency
- Project Schedule
Our team has estimated projects ranging from $10 million to several hundred million dollars, across project types including:
Commercial Facilities, Restaurants, Retail Spaces, Airports, Condominiums, Educational Facilities, High-Rise Buildings, Shopping Centers, Theaters & Museums, Sports Auditoriums, Exhibition Buildings, Prisons & Police Stations, Fire Stations, Courts, Office Buildings, Warehouses, Parking Garages, Libraries, Medical Facilities, Hotels & Motels, Airport Facilities, and Bus & Subway Facilities.
If you’re looking for an estimating partner you can count on, we’re ready to help. Upload your plans and get a quote in minutes.
How We Build a Preliminary Estimate
Our estimators start by reviewing the available information to understand project scope and outline an estimating plan. We then pull data from comparable past projects, applying adjustments for time, location, and size, along with an appropriate contingency. Every assumption, specification, and adjustment is documented clearly so you know exactly how the number was built.
What Shapes an Accurate Preliminary Estimate
Since preliminary estimates often get built well ahead of actual construction, we make several key adjustments:
- Time: Costs are adjusted using a time index that accounts for inflation, deflation, labor rate shifts, and material cost changes between now and the expected construction start date.
- Location: Material and labor rates vary significantly by region, so we apply a location index benchmarked against national averages or the nearest major market.
- Size & Type: A size factor relates your project’s proposed area to typical building sizes for that project type.
- Material Quality: We factor in the grade of primary materials being considered, such as brick veneer, CMU, or framed construction.
Software We Use
Planswift
Bluebeam
FastPIPE
FastDUCT
FastWRAP
Trimble
Xactimate
Quest
What You Get When You Outsource to Us
- Reliable, precise estimates
- Competitive, affordable pricing
- Fast turnaround, typically 24 to 48 hours
- Cost-effective monthly takeoff packages
- Estimators credentialed through AACE and AIQS
- 24/7 customer support
Our Service Areas
Build AI Estimating has delivered construction estimating services across North America, the Caribbean, and Australia. Within the US, our project portfolio spans markets including New York, New Jersey, Florida, California, North Carolina, Virginia, Washington, Massachusetts, South Carolina, Oregon, Oklahoma, Pennsylvania, Tennessee, Minnesota, Illinois, Texas, Georgia, Arizona, Michigan, Missouri, Colorado, Kentucky, Indiana, Louisiana, Alabama, Maryland, Connecticut, and Ohio.
FAQs
What types of projects do you cover with preliminary estimates?
We prepare preliminary estimates for residential, commercial, and industrial projects of all types, with a strong focus on accuracy.
How do you handle incomplete designs?
We regularly work with incomplete or early-stage designs and have a strong track record delivering reliable results at various levels of completion.
Who typically requests these estimates?
We serve a wide range of clients, though project owners and builders make up the majority of requests.
Do you keep records of past estimates for comparison?
Yes, we maintain a broad archive of past estimates, which helps us deliver more consistent, well-informed results for new projects.
Does the final estimate include full cost information?
Yes, every preliminary estimate we deliver includes complete cost breakdowns alongside the quantity details.
Other Services
- Cost Estimating
- Building Cost Estimating
- BIM Estimating
- Budget Estimating
- Construction Estimating
- Freelance Estimating Services
- Blueprint Estimating Services
- Xactimate Estimating Services
- Construction Takeoff
- Quantity Takeoff
- Residential Estimating
- Single Family Residential
- Commercial Estimating
- Industrial Estimating
- Preliminary Estimate
- Estimating Consultant
- CPM Scheduling
- Primavera Scheduling Services
- MS Project Scheduling Services
Want To Try Our Services ?
Send us your plans, ask a question, or get a quote started today.
Helping Contractors Win More Bids
Monthly Packages Built Around Your Workload
Contractors regularly turn to us for reliable, professional estimating and takeoff support. Many opt for our monthly packages since they cut costs while still delivering accurate, efficient takeoffs. We keep our pricing budget-friendly across the board, and our packages can reduce the cost of maintaining an in-house estimator by as much as 60 percent.
Beyond that, contractors come to us for specialized needs too, whether that’s roof takeoffs, plumbing takeoffs, or mechanical takeoffs. We handle each one carefully, factoring in labor, materials, equipment, and profit margins to keep every number realistic.
At the end of the day, our team works to make the estimating process smooth and productive for every contractor we partner with, adding value at every stage of the project.
Client Success
Customer Rating
Licensed Professional
Years Experience
How It Works
Our Work Process
Send Us Your Plans
Share your drawings and specs with us in PDF format, whether that’s a bid set, schematic, development, documents, or conceptual plans. Send them via file upload through our contact form.
Review Your Quote
We’ll review your plans and send back a quote within minutes, covering pricing, turnaround time, and delivery date. Accept it and pay securely by credit card, debit card, or PayPal to get started.
Get Your Estimate
Receive a full estimate with all material and labor quantities along with pricing, delivered in Excel. We can use our standard template or yours, whichever suits your workflow best.
The Foundation of Every Great Structure is A Shared Vision
Trusted Company
Testimonials
Results That Speak For Themselves
Contractors and builders trust Build AI Estimating for fast, accurate construction estimating services. Here’s what they have to say about working with us.
