All CSI Divisions

Commercial Estimating Services for Contractors, Developers, and Design Teams

Prime Estimation prepares commercial construction estimates for general contractors, trade subcontractors, developers, architects, and design-build firms across the United States. Whether you need a conceptual budget to test a project's feasibility or a line-item bid estimate for every CSI division, we measure quantities from your drawings, apply labor hours and local pricing, and deliver an organized Excel estimate you can review, adjust, and defend.

With 17 years of construction estimating experience, our team knows where commercial bids go wrong: scope gaps between trades, general conditions left off, and pricing that no longer reflects the local market. Every estimate is checked by a lead estimator before it reaches you.

Estimators reviewing commercial construction drawings
24–48 hoursSingle-trade takeoffs
All divisions01 general requirements to 33 utilities
5 estimate stagesConceptual through bid
Lead-estimator reviewBefore anything ships
ZIP-code pricedRSMeans plus local market data
At a Glance

What Are Commercial Estimating Services?

Commercial estimating services turn a project's drawings and specifications into a detailed forecast of what the building will cost to construct.

What you getDetails
Experience17 years of construction estimating
CoverageCommercial projects in all 50 states, priced by project zip code
ScopeAll CSI MasterFormat divisions, from general requirements to site utilities
Estimate stagesConceptual, schematic, design development, construction documents, and bid
Takeoff softwareBluebeam Revu, PlanSwift, On-Screen Takeoff
Pricing referencesRSMeans cost data and current local material and labor pricing
DeliverablesExcel estimate, marked-up plans, scope sheet with inclusions and exclusions
TurnaroundSingle-trade takeoffs often in 24–48 hours; full multi-trade estimates in 2–3 business days
PricingFlat fee per project, quoted upfront

An estimator measures and counts materials, assigns labor hours, adds equipment, general conditions, overhead, and profit, and organizes it all so the owner, contractor, or lender can make decisions from it. Commercial work is harder to estimate than residential work: more trades, longer specifications, stricter code and accessibility requirements, prevailing wage rules on public jobs, and coordination between architectural, structural, and MEP drawings. A missed item in one division can erase the margin on the whole bid.

Design Stages

Commercial Estimates at Every Stage of the Project

The right level of detail depends on how far along the design is. We follow the estimate classification approach used by AACE International, in which an estimate's accuracy improves as the design becomes more complete.

Design stageEstimate typeHow it is builtTypical use
Concept / feasibility Conceptual Cost per square foot, building type, location factors, and historical project data Go/no-go decisions, land acquisition, early financing
Schematic design Schematic Major building systems and assemblies — foundations, structure, envelope, MEP Setting the owner's budget and design targets
Design development Design development Assembly and preliminary quantity takeoffs by CSI division Value engineering and keeping design on budget
Construction documents Detailed Full quantity takeoff for every trade with labor hours and unit pricing Final budget, GMP, lender review
Bidding Bid estimate Detailed takeoff plus general conditions, bonds, insurance, overhead, and profit Submitting a competitive, defensible bid

Tell us what the estimate will be used for and we will recommend the level of detail, so you don't pay for more precision than the drawings can support.

Deliverables

What Your Commercial Estimate Includes

Estimates follow CSI MasterFormat by default. If you use Uniformat, your own cost codes, or a company template, we will build the estimate in your format.

Quantity takeoff by division

Every material listed by type, size, and unit of measure, organised by CSI division.

Labor hours and costs

Per line item, based on productivity rates adjusted for your project's conditions.

Costs in separate columns

Material, labor, equipment, and subcontractor costs split out, so you can swap in your own rates or supplier quotes.

General conditions & Division 01

Supervision, temporary facilities, dumpsters, and cleanup, when included in your scope.

Summary sheet

Costs rolled up by division, trade, building, or phase, with overhead, profit, bonds, and insurance as adjustable lines.

Colour-coded marked-up plans

Showing exactly what was measured and counted, so every quantity traces back to a sheet.

Scope sheet

Inclusions, exclusions, allowances, and alternates, ready to attach to your proposal.

Discrepancies & RFI list

Conflicts between disciplines that could affect price, listed before you bid.

Request a sample commercial estimate →

Scope Coverage

Trades and CSI Divisions We Estimate

We prepare full-project estimates or individual trade estimates, depending on what you need to bid.

CSI divisionWhat we quantify
01 — General RequirementsSupervision, temporary facilities, utilities, safety, cleanup, permits, and project closeout
02 — Existing ConditionsSelective and full demolition, abatement allowances, and site clearing
03 — ConcreteFootings, slabs on grade, elevated decks, walls, rebar, formwork, and finishing
04 — MasonryCMU, brick veneer, stone, grout, reinforcement, and accessories
05 — MetalsStructural steel, joists, metal deck, stairs, railings, and miscellaneous metals
06 — Wood, Plastics, CompositesFraming, blocking, sheathing, trusses, and architectural millwork
07 — Thermal & Moisture ProtectionRoofing, insulation, air and vapor barriers, waterproofing, sealants, and firestopping
08 — OpeningsDoors, frames, hardware, storefronts, curtain wall, windows, and glazing
09 — FinishesMetal studs and drywall, ceilings, flooring, tile, and painting
10–14 — Specialties, Equipment, Furnishings, ConveyingToilet accessories and partitions, signage, lockers, food service equipment, and elevators
21–23 — Fire Suppression, Plumbing, HVACSprinklers, plumbing piping and fixtures, ductwork, HVAC equipment, and controls
26–28 — Electrical, Communications, SafetyPower, lighting, panels, low-voltage, fire alarm, and security
31–33 — Earthwork, Exterior Improvements, UtilitiesExcavation, grading, paving, curbs, landscaping, and site utilities

Need a single trade? See our MEP estimating services, electrical estimating services, plumbing estimating services, drywall estimating services, and concrete estimating services.

Margin Killers

Where Commercial Bids Most Often Go Wrong

In our experience reviewing commercial bids, the costly mistakes are rarely in the big quantities. They hide in the details between trades and in the specifications. Every estimate we prepare is checked for these items.

General conditions left out or underpriced

Especially on longer schedules where supervision and temporary facilities run for months.

Scope gaps between trades

Blocking, backing for wall-mounted equipment, access panels, or firestopping that each trade assumes is someone else's.

Items shown only in the specifications

Testing, commissioning, mockups, attic stock, and warranty requirements.

Owner-furnished and “not in contract” items

Counted when they shouldn't be, or left out when the contractor must install them.

Labor conditions

Prevailing wage and Davis-Bacon rates, union requirements, night or weekend work, and phased work in occupied buildings.

Material escalation

On projects that won't buy out for months — particularly steel, copper, and electrical gear with long lead times.

Bonds, builder's risk and permit fees

They belong in the final number, not discovered after award.

Alternates and allowances

Listed in the bid form but not priced separately.

Anything the documents leave unclear is flagged in the clarifications, so you decide how to handle it before bid day.

Who We Serve

Built for Every Side of a Commercial Project

General contractors

Complete project estimates for hard-bid and negotiated work, independent trade numbers to level subcontractor bids against, and general conditions estimates. We also update estimates for addenda and price change orders during construction.

Subcontractors

Trade-specific takeoffs and bid estimates for concrete, masonry, steel, drywall, flooring, roofing, MEP, and other trades — built with your labor rates so your bids reflect how your crews actually work.

Developers and owners

Conceptual and schematic budgets to test feasibility, detailed estimates to check contractor pricing, and cost reports that support investment and financing decisions.

Architects and designers

Estimates at schematic, design development, and construction document milestones, so you can confirm the design fits the client's budget and make value engineering decisions before drawings are finished.

Design-build firms

Early-stage estimates that set a target price, followed by updated estimates as design progresses, so the design and the budget develop together.

Lenders and investors

Independent construction cost estimates to review a borrower's budget before closing on a construction loan.

Project Types

Commercial Project Types We Estimate

New construction, additions, renovations, and interior build-outs — including phased work in occupied buildings.

Office and mixed-use

Office buildings, mixed-use developments, and tenant improvements.

Retail and restaurants

Shopping centers, big-box stores, restaurants, and franchise build-outs.

Hospitality

Hotels, resorts, and conversion or renovation projects.

Healthcare

Medical office buildings, clinics, urgent care centers, and hospital renovations.

Education

K–12 schools, college buildings, and libraries.

Industrial and logistics

Warehouses, distribution centers, and light manufacturing.

Public and civic

Fire and police stations, courthouses, museums, theaters, and transit facilities.

Multifamily

Apartments, condominiums, and senior living.

Methodology

How We Build a Commercial Estimate

Four controls that decide whether the number holds up in a scope review.

Quantities from the drawings

Our estimators measure and count directly from your plans using Bluebeam Revu, PlanSwift, and On-Screen Takeoff. Every measured item is marked on the drawings so you can trace any quantity back to its source.

Pricing based on location

Material and labor costs are based on RSMeans cost data and current local pricing, adjusted for the project's zip code. When you have supplier or subcontractor quotes, we use them in place of database pricing.

Labor that reflects real conditions

Labor hours are adjusted for building height, access, occupied spaces, and phasing. We apply open-shop, union, or prevailing wage rates according to the project's requirements.

Quality review

Before delivery, a lead estimator reviews the estimate for missed scope, unit errors, and pricing that falls outside expected cost-per-square-foot ranges for the building type.

Getting Started

How to Get Started

Five steps from your bid invitation to a reviewed estimate in your inbox.

Upload Your Plans →
  1. 01

    Send your documents

    Upload your drawings, specifications, addenda, and bid form, or share a plan room or cloud storage link. Include your bid date and any format or pricing preferences.

  2. 02

    Receive a fixed quote

    We review the scope and reply with a flat fee and a delivery date, usually within a few hours.

  3. 03

    Approve and we start

    Once the quote is approved and paid, your project is assigned to estimators experienced in the relevant trades.

  4. 04

    We confirm what the drawings don't show

    If there are questions about site conditions, labor requirements, or scope splits, we ask you instead of assuming.

  5. 05

    Receive your estimate

    You get the Excel estimate, marked-up plans, and scope sheet with time to review before bid day. One round of updates for addenda is included.

Team reviewing commercial project costs and drawings
Before You Upload

What to Send for an Accurate Commercial Estimate

  • Complete drawing set — architectural, structural, civil and MEP
  • Project manual and specifications, including Division 01
  • All addenda issued to date
  • Bid form, with alternates, allowances and unit prices
  • Geotechnical report, if earthwork or foundations are in scope
  • Your labor rates, preferred suppliers and estimate template, if you have them

No drawings yet? We can prepare a conceptual estimate from the building type, size, location, and a description of the project.

Turnaround & Pricing

Turnaround Time and Pricing

Your quote confirms the exact delivery date, and rush service is available when your bid date is close.

Single-trade takeoff

24–48 hours

One division on a standard commercial project.

Typical fee $250 – $600

Multi-trade package

2–3 business days

Two to four divisions priced together from one drawing set.

Typical fee $800 – $1,800

Full multi-division estimate

2–3 business days

Every division with general conditions, bonds, overhead and profit.

Typical fee $1,200 – $2,500

Conceptual / budget estimate

24–48 hours

Feasibility and early financing from building type, size and location.

Typical fee $500 – $1,500

We charge a flat fee per project, based on building size, the number of trades, and the level of detail required. There is no hourly billing and no charge until you approve the quote. For most contractors, paying per bid costs significantly less than a full-time estimator's salary, benefits, and software licenses. Very large projects may take longer than the windows above — the quote confirms the date.

Comparison

Outsourced Commercial Estimating vs. an In-House Estimator

FactorIn-house estimatorPrime Estimation
CostSalary, benefits, and software year-roundFlat fee only when you have a project to bid
CapacityOne person's hours; bids are turned down in busy weeksMultiple estimators available when bids pile up
Trade expertiseStrong in some trades, weaker in othersEstimators matched to each trade
Software and cost dataPurchased and maintained by youIncluded
Independent reviewOften noneEvery estimate checked by a lead estimator
Our Portfolio

Recent Commercial Estimating Projects

[Project type], [City, State]

[Size and description]. Scope included [divisions or trades]. Estimate delivered in [X] business days. [Outcome]

[Project type], [City, State]

[Size and description]. [Key challenge]. [Outcome]

Our Team

Meet Our Commercial Estimating Team

Commercial estimates are prepared by estimators matched to each trade and reviewed by a lead estimator before delivery. The team works in Bluebeam Revu, PlanSwift, and On-Screen Takeoff, and prices with RSMeans and local market data.

Bluebeam Revu

On-screen measurement and drawing markup.

PlanSwift

Assembly-based takeoff and quantity export.

On-Screen Takeoff

Layered digitizing on large commercial sets.

RSMeans

ZIP-code-adjusted unit pricing.

[Lead Estimator Name], [Title] — [X] years of commercial estimating experience. [Credentials]. [Project specialty].

FAQ

Commercial Estimating FAQs

What do commercial estimating services include?

A commercial estimate includes quantity takeoffs, labor hours, material, labor, and equipment costs, general conditions, and markup, organized by CSI division. You also receive marked-up plans and a scope sheet listing inclusions, exclusions, and clarifications.

How accurate is a commercial construction estimate?

Accuracy depends mostly on how complete the design is. A conceptual estimate from a floor area and building type carries a wide range, while a detailed estimate from complete construction documents is much tighter. We tell you the estimate type upfront so you know how much confidence to place in the number.

How long does a commercial estimate take?

Single-trade takeoffs are often delivered within 24–48 hours. Full multi-trade estimates usually take 2–3 business days, and very large projects may take longer. Your quote confirms the delivery date.

How much do commercial estimating services cost?

We charge a flat fee based on project size, number of trades, and level of detail. Send your plans for a fixed quote before any work begins.

Can you estimate just one trade?

Yes. Many clients use us for a single trade, such as drywall, concrete, or MEP, and others for the entire project.

Do you estimate public and prevailing wage projects?

Yes. We apply Davis-Bacon or state prevailing wage rates where required and include bid form items such as alternates, unit prices, and allowances.

Can you help with value engineering?

Yes. During design, we price alternative materials and systems so the owner and design team can see what each option saves before the drawings are finalized.

Do you price change orders?

Yes. We price proposed changes against the original estimate so contractors and owners can agree on costs quickly and with supporting detail.

What formats do you deliver estimates in?

Estimates are delivered in Excel, organized by CSI MasterFormat, along with PDF marked-up plans. We can also use your template, cost codes, or Uniformat structure.

Is my project information confidential?

Yes. Drawings, pricing, and bid information are used only to prepare your estimate and are never shared with other clients or third parties. An NDA is available on request.

Ready to Get Started?

Get a Commercial Estimate You Can Bid With Confidence

Send us your drawings and your bid date. We will reply with a flat quote and a delivery date, with no obligation. Your plans stay confidential.

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