Public Works Estimating Services for the Contractor Bidding the Job
We work for the contractor bidding the job, not for the awarding agency. Your bid schedule comes back rebuilt in the agency's own pay item numbers and units, with our verified quantity sitting beside their plan quantity, 24-96 hours after the 50 percent start payment.
What comes back on a public bid package
- The agency's bid schedule rebuilt in Excel, item number for item number
- Our verified quantity beside their plan quantity, with the variance shown
- Color-coded markups keyed to the pay item each measurement belongs to
- Assumptions, inclusions and exclusions written as a scope letter
- Estimator self-check, then an independent second-estimator audit
Government construction estimating services, for the contractor bidding the job, not the awarding agency
Public works cost estimating is really two businesses sharing one vocabulary. One prices the job for the owner before it advertises. The other prices it for a bidder who has to live inside the number afterwards.
If you arrived here looking for a consultant to build an owner's budget or an independent government estimate, this is the wrong desk and knowing that now saves you a week. Our public works estimating services are written for the other side of the table: a prime assembling a hard bid off a published solicitation, a specialty sub quoting that prime, or a contractor who has just cleared prequalification and is staring at a public bid form for the first time.
Producing the number is the part your estimator already knows how to do. Getting it onto their form, in their item numbers, with no blank line, is where bids die.
Three things change the instant the owner is public. Your price is read aloud to your competitors and generally cannot be withdrawn once opened. On unit price work, bids are ranked on the agency's plan quantity, while payment follows whichever quantity the contract names. And a clerical defect can beat you on a day when your number was the lowest in the room.
Public bids by owner type, and what each changes in the estimate
Public bidding, written four different ways depending on who is buying.
Municipal construction estimating services, by owner type
County and city bid estimating services
LOCALThe most varied paperwork in public work. A city may run a two-page bid form on a paving overlay and a multi-volume solicitation on a plant expansion under the same purchasing ordinance.
School district construction bid estimating
K-12Bond-funded work bid in phases against a summer window that cannot move. K-12 bond program bid estimating is really schedule estimating in disguise: the same classroom wing costs a different number if it has to be occupied in August.
Transit and airport bid estimating
AUTHORITYAuthorities write their own procurement rules on top of federal funding conditions. Track possessions, airside badging, escorted access and restricted working hours change production rates before they change anything else, so they are priced into crew output on the items they touch rather than added as a percentage at the end.
Water and wastewater bid schedule estimating
DISTRICTTreated here as a solicitation type, not as a process trade. The bid schedule on a lift station or a plant expansion mixes lump sum structures, unit price pipe and allowance items in one document, which is where the pricing errors cluster.
Industrial and heavy civil estimatingBid schedule preparation, line by line on the agency's form
Public works cost estimating lands or dies inside one document.
| Pay item number | The agency's own code from its spec book | Agency, preprinted | Recoded to CSI, so the line stops matching |
|---|---|---|---|
| Unit of measure | SY, CY, LF, TON, EA or LS for that item | Agency, preprinted | A rate priced per SF against an SY unit |
| Plan quantity | The engineer's measured quantity | Agency, preprinted | Taken on faith and never checked |
| Unit price | Your all-in rate for one unit of that item | You | Indirect cost spread across items by feel |
| Extension | Unit price times the plan quantity | You | One transposed digit nobody re-adds |
| Lump sum lines | Whole scopes inside a unit price schedule | You | Priced as if a quantity variation clause covered it |
| Mobilization | Often capped in the special provisions | You | Loaded past the cap, then reallocated or rejected |
| Alternates | Add or deduct scopes priced separately | You | Left blank, which can be a fatal defect |
Bids are ranked on their quantity, and you build to yours
The most expensive misunderstanding in unit price bidding. The Measurement and Payment clause decides which quantity pays: the plan quantity on a plan-quantity-final contract, the quantity trued up as built on a field-measured one. Your cost is driven by what is actually out there. Both numbers belong in the same workbook, in adjacent columns.
Put one solicitation through and read the variance column
Send the plan set, the bid form and your letting date. Scope, price and a delivery date come back in writing, and no invoice exists until you say yes to all three.
Addendum acknowledgment, and the revision log that keeps your number traceable
An unacknowledged addendum can void a bid that was otherwise lowest in the room.
Log it against the acknowledgment block first
Read the clouds, then isolate the affected pay items by number
Re-quote it honestly, then re-measure
Reissue with a revision log tied to the addendum number
Responsive versus responsible, and how good bids get thrown out on paper
Responsiveness is a test of the document you submitted. Responsibility is a test of you.
Ask a public bid estimator before you send anything
Prequalification classes, a bid schedule format you have not seen before, an addendum that landed this morning. Put the question to an estimator and the reply comes back inside 30 minutes.
DBE, MBE and WBE goals, as a scope packaging problem
A participation goal is not a form you complete at the end. It is a decision about how the schedule gets cut into packages, taken while you are still pricing, because it changes what the job costs you to build.
What an MBE or WBE participation goal does to your bid estimate
Carving the schedule into real scopes of work
PACKAGINGA goal is met by giving certified firms genuine scopes, sized to what they can actually perform. That means reading the bid schedule as packages rather than as items, during pricing, because the packaging changes the coordination cost.
The cost delta between the two quotes
THE PRICE OF THE GOALThis is the number contractors actually need: what hitting the goal costs, as a certified firm's quote against the open-market quote, per package, before you commit to it in the bid.
Which program's rules count the goal
MBE / WBE / SBEA city MBE and WBE program, a state SBE program and a federally funded DBE goal use different certifications and different counting rules. Which directory the goal is measured against is confirmed at intake, because carrying a firm certified under the wrong program is the same as carrying nothing on that line.
The federal layer, sealed bidding, proposals and domestic content
Government construction estimating services change least in the measuring and most in the procurement rules around it.
Federal construction estimating services, and what actually changes
FAR Part 14 sealed bidding
IFBAn invitation for bids, a public opening, and award to the lowest responsive and responsible bidder. No discussions, no negotiation. It is the closest federal analog to a state letting.
FAR Part 15 negotiated procurement
RFPA request for proposals, evaluation against stated factors, possible discussions with the competitive range, and a best and final offer. Price is one factor among several and it is often not the heaviest one.
Agencies, and domestic content on federally funded work
USACE, NAVFAC, GSA and VA
AGENCIESUSACE bid estimating support tends to mean civil works and military construction with heavy specification content. NAVFAC adds base access and facility standards, GSA runs occupied-building renovation, and VA work sits inside live medical facilities where phasing dominates the cost.
Buy America and Build America, Buy America
DOMESTIC CONTENTDomestic content requirements on federally funded work cover iron and steel permanently incorporated, manufactured products and construction materials. Treat any domestic content threshold you read anywhere as needing verification against the solicitation on the day you bid.
Job order contracting, coefficient development and non-prepriced items
Job order contracting is bought on one number, the coefficient, and getting it wrong once typically locks the error in for the life of the contract.
| Bonds | Priced against a known contract sum | Carried against volume that may never be ordered |
|---|---|---|
| Insurance | Rate applied to a known contract value | Rate applied to work not yet ordered |
| Mobilization | Often its own capped bid item | Absorbed, and repeated every task order |
| Supervision | General conditions priced by month | Absorbed across orders of unknown size |
| Home office overhead | A percentage on one bid | Absorbed, spread over uncertain volume |
| Profit | Your own margin row | Absorbed, and the first row squeezed |
| Escalation | To the midpoint of construction | Absorbed unless the UPB is reissued |
| Non-prepriced work | Priced like anything else | Justified item by item against the UPB |
Run a letting calendar on a monthly partnership
Shops bidding three or more lettings a month move off per-bid pricing onto a monthly partnership. Send your letting calendar and it gets sized.
Bid tabulation analysis, after the envelope is open
Read properly, a bid tab is the cheapest estimating input in public work.
How do you read a bid tabulation?
Start with the apparent low bidder rather than the award, because the two are not always the same firm. Then read your extensions against theirs item by item. The tab names the items you were high on and the ones you were low on.
You are in Florida. How would you know what a county job in Ohio costs?
We do not claim to know. Baselines come from RSMeans and the National Construction Estimator adjusted for location, then get corrected by your own historical unit prices and your supplier quotes wherever you send them. The published tab is the honest source on what that agency's market pays, which is exactly why we ask for the old ones.
Can you build a historical unit price file from my old bid tabs?
Yes. Old tabs get normalized into one workbook by agency, pay item and letting date. The next time aggregate base comes up with that county, you are pricing against what they have actually awarded rather than against a national book rate corrected by a factor.
What our public works estimating services do not do, and why that protects your bid
An outsourced estimator for public bids is only worth hiring if you know exactly where they stop.
Public works cost estimating questions, answered plainly
What contractors ask in the week before a letting.
The bid schedule
Calibration
Working with us
Scope
Send one solicitation and get
a fixed quote
Attach the plan set, the bid form and every addendum so far, and name the letting date. An estimator reads it, prices the items you name, and sends one figure and one date back in writing before any work begins.