Contractor in South Portland, ME.
Information sourced from public state license records — not yet verified by the business owner. Always confirm credentials before hiring.
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Subscribe to unlock Or start a 7-day free trialBidroom indexed this listing from public Maine license records. Before signing a contract, take 2 minutes to verify the credentials yourself using the official sources below.
A valid license number on file doesn't guarantee current status. License standing can change — always verify on the state board the day you hire.
Cianbro Corporation is a contractor based in South Portland, Maine. Their license classification is NAICS 237990.
Yes. Cianbro Corporation holds Maine licensing authority license #OSHA-8514a5159575d0. Verify the current status on Maine licensing authority before hiring.
Cianbro Corporation is based in South Portland, ME 4106. Most contractors serve a 25–50 mile radius from their home base, but always confirm coverage before requesting a bid.
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The fastest way is to post your project on Bidroom — Cianbro Corporation and up to 2 other verified contractors in South Portland can bid on it, and every quote includes itemized pricing + a written scope of work.
Varies by scope varies is the typical range. Contractor pricing depends heavily on project size, materials, and access. Get at least 3 itemized written quotes before deciding. Local market rates in South Portland may run higher than this baseline.
Not yet. This listing was created from public Maine license records but hasn't been claimed by the owner. The license info above is from official records, but the business hasn't confirmed its services, hours, or current availability with us yet.
Quick checklist any homeowner can use — these are the 8 things that distinguish hiring well from getting burned.
Itemized scope + materials + timeline. One quote is a guess; three is data.
Look up the number directly on Maine licensing authority — not just a screenshot from the contractor.
General liability AND workers' comp. Have the insurer email it directly — never accept a PDF from the contractor.
Same trade, same scope, completed in the last 12 months. Call them.
Scope, payment schedule, start & completion dates, change-order process, warranty terms.
Standard: 10–30% deposit, progress draws tied to milestones, final 10% on punch-list completion.
Get a conditional waiver with every payment and an unconditional waiver at final payment. Protects your title.
For anything structural, electrical, plumbing, or HVAC — the contractor (not you) pulls the permit. No permit = no recourse if work fails inspection.
Contractor pricing depends heavily on project size, materials, and access. Get at least 3 itemized written quotes before deciding.
Ranges are national averages. South Portland market rates may run 10–30% higher in high-cost metros. Get itemized bids to compare apples-to-apples.