How to Evaluate Competing Bids

The number at the bottom isn’t the comparison.

Two bids can look dramatically different while representing essentially the same project.

They can also look remarkably similar while carrying very different levels of cost, uncertainty, and future decision-making.

That is because a construction proposal is not simply a price for a set of drawings. It is a collection of scope, assumptions, allowances, exclusions, qualifications, schedule expectations, and risk, all translated into a number.

The number is the end of the calculation, it is not the comparison.

START WITH THE SCOPE

Before comparing price, determine whether the builders are actually pricing the same work.

This sounds obvious. It is one of the easiest things to overlook.

One proposal may include painting throughout while another carries only the areas specifically called out in the drawings. One may include removal and replacement of existing flooring. Another may assume the existing flooring remains. One may include finish hardware. Another may carry an allowance. One may include site protection, temporary facilities, and cleanup as part of its general conditions. Another may not.

All three can produce legitimate proposals. They are simply not necessarily pricing the same project. A useful first step is to compare the scope line by line, not the totals side by side.

Ask:

• What work is specifically included?
• What work is excluded?
• What is carried as an allowance?
• What has been assumed?
• What remains undefined?

Until those questions are answered, the difference between two totals doesn’t tell you much.

READ THE EXCLUSIONS

Exclusions deserve the same attention as inclusions.

A proposal with a long list of exclusions is not automatically problematic. Some exclusions are reasonable responses to incomplete information. The important question is what those exclusions represent.

If demolition is excluded, who is responsible for it? If engineering is excluded, has it been obtained elsewhere? If a finish is excluded because it hasn’t been selected, how will that cost eventually enter the project?

An exclusion doesn’t make a cost disappear. It tells you that the cost (or the responsibility for determining it) currently sits somewhere else.

LOOK CLOSELY AT ALLOWANCES

Allowances are one of the easiest ways for two bids to appear comparable when they aren’t. An allowance is a placeholder for something that hasn’t been fully selected or priced.

That can be useful during estimating. It can also create a misleadingly low starting number if the allowance bears little relationship to what the project is actually likely to require.

Imagine two proposals carrying kitchen cabinetry at different allowances. The lower proposal may have the lower total. But if the design ultimately requires cabinetry at the higher allowance, the difference wasn’t savings. It was simply cost that hadn’t been accounted for yet.

When reviewing allowances, ask: What is the allowance? What does it include? Is it realistic for the design? And what happens when the actual selection costs more?

FIND THE ASSUMPTIONS

Every proposal contains assumptions. Some are obvious. Others are buried in the language of the proposal. A builder may assume existing utilities are adequate. They may assume access to the property is straightforward. They may assume certain existing conditions will remain. They may assume selections will be made by particular dates. They may assume a material will be available within the anticipated schedule.

Assumptions aren’t inherently bad. Unidentified assumptions are where uncertainty begins.

A good bid makes it possible to understand what the builder knows, what they don’t know, and what they have assumed in order to arrive at the number.

DON’T IGNORE THE SITE

The drawings describe the proposed work. The site determines how that work actually gets built.

Existing conditions, access, staging, demolition, excavation, utilities, temporary protection, deliveries, neighboring properties, weather exposure, and site logistics can all affect the cost and sequence of construction.

This is particularly important in remodeling, where the existing house becomes part of the construction equation. A bid based primarily on documents may not account for everything the builder will encounter once work begins.

That doesn’t necessarily mean the bid is wrong. It means you should understand how much of the project has actually been evaluated.

THE SCHEDULE IS PART OF THE PRICE

A construction duration on a proposal can look reassuringly precise: Eight months. But what does that actually mean?

A credible schedule depends on much more than the number of weeks between mobilization and completion. It depends on:

• Procurement and lead times
• Long-lead materials
• Subcontractor sequencing
• Inspections
• Design decisions
• Owner selections
• Fabrication
• Site conditions
• Dependencies between trades

A shorter stated duration isn’t necessarily a more efficient project. It may simply reflect a different set of assumptions. Instead of asking only “How long will it take?”, ask: “What has to happen, and when, for that completion date to be achievable?”

UNDERSTAND THE CONTIENGENCY

Contingency is another number that can be difficult to compare.

A contingency might address unforeseen existing conditions. It might address design development. It might be held by the owner, the builder, or both.

The important questions are: What does it cover? Who controls it? When can it be used? How are those expenditures communicated?

A contingency isn’t a magic cushion that makes risk disappear. It is a way of acknowledging that some things cannot be known with certainty at the time a contract is signed.

The quality of the process around that uncertainty matters as much as the amount itself.

PAY ATTENTION TO WHAT HAPPENS WHEN SOMETHING IS UNCLEAR

This may be one of the most revealing parts of a bid. Ask a question about something that doesn’t quite make sense. Then pay attention to the response. Does the builder simply provide an answer? Do they identify a larger issue behind the question? Do they explain an assumption you hadn’t noticed? Do they ask for clarification before committing to a number?

The estimating process gives you an early view into how a builder thinks.

The way a builder handles uncertainty during the bid is often more informative than the confidence of the number itself.

FIND OUT WHO IS ACTUALLY RUNNING THE PROJECT

The person presenting the proposal may not be the person managing the construction.

That distinction matters. Ask:

• Who will be the primary point of contact?
• Who will manage the schedule?
• Who coordinates the trades?
• Who reviews work in the field?
• Who communicates with the architect or designer?
• Who handles decisions when conditions change?

You aren’t just selecting a number. You’re selecting the system of people responsible for turning that number into a finished project.

ASK WHAT HAPPENS AFTER YOU SIGN

There is often a gap in the homeowner’s mental model of construction.

They imagine: Bid → Contract → Construction

In reality, there is often substantial work between those points.

Finalizing selections.
Resolving outstanding details.
Confirming subcontractors.
Ordering materials.
Developing the construction schedule.
Completing permits and approvals.
Establishing communication protocols.
Preparing the site.
Translating design documents into field-ready information.

That period is not administrative downtime. It is part of construction.

A strong pre-construction process can resolve uncertainty before it becomes a field problem.

ARE YOU COMPARING A PRICE OR A PROJECT?

This is the question underneath all of the others.

A set of drawings is not a project.

A project includes the drawings, but also the existing conditions, the site, the selections, the trade partners, the procurement, the sequence, the decisions that haven’t been made yet, the risks that have been identified, and the people responsible for bringing all of it together.

A builder can price the documents. Or a builder can evaluate what it will actually take to build what the documents describe. Those are different exercises. The first produces a number. The second begins to describe a project. And that distinction is easy to miss when the only thing being compared is the number at the bottom of the page.

A BETTER WAY TO COMPARE BIDS

When reviewing competing proposals, create a simple comparison that puts the numbers after the questions.

Question	Builder A	Builder B
Same scope?
Key exclusions?
Allowances realistic?
Major assumptions?
Site conditions evaluated?
Schedule basis?
Contingency structure?
Pre-construction process?
Project leadership?
Outstanding questions?

The purpose isn’t to make every proposal identical. It is to make the differences understandable.

Once you understand what each builder is actually carrying, the numbers become much more useful. You may discover that a large price difference comes from scope. Or allowances. Or exclusions. Or assumptions. Or simply from different interpretations of what the project requires.

And sometimes you discover that two numbers that looked very different were actually describing remarkably similar projects. That is the comparison worth making.

Why This Matters

Homeowners are often told to “get three bids” as though the exercise itself creates clarity. It doesn’t.

Three numbers can create more confusion if the proposals are built on different assumptions.

The goal isn’t to find the lowest number. It is to understand what each number represents.

A construction proposal should give you enough information to understand what the builder believes the project will require, where uncertainty remains, and what conditions could change the outcome.

That is a much more useful conversation than simply asking why one bid is higher than another.

Because the real question isn’t: “Why does your number cost more?”

It is: “What are you seeing in this project that is different from what the other proposal is seeing?”

That is where the useful conversation begins.

A Question Worth Asking

If the three bids on your project were all exactly the same price, what would you still need to know before choosing a builder?

Related Principles

Budget Philosophy · Pre-Construction Planning · Project Health™ · Selecting Your Team · Construction Management