Contractor bid guide

Home Addition Contractor Bid Checklist

Additions have enough moving parts that a single total can conceal very different assumptions about design, site work, utilities, finishes, and fees.

Separate preconstruction from construction

Clarify architecture, engineering, survey, energy work, permit drawings, revisions, and jurisdiction responses.

Site and utility assumptions can swing price

Compare excavation, access, drainage, utility upgrades, service capacity, trenching, restoration, and soil assumptions.

Finish allowances need the same baseline

Normalize cabinets, counters, tile, flooring, fixtures, lighting, doors, hardware, and paint levels before comparing totals.

Use the decision as the starting baseline

When you choose a contractor, preserve the accepted scope, price, allowances, and payment milestones. CheckMyBids is the pre-hire side of the workflow; CheckMyRemodel is where the awarded project continues when changes and payments start.

Compare your own bids.

Use a free CheckMyBids tool or start a Bid Snapshot before you sign.

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