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Diamond Plumbing & Heating Llc

HVAC · Serving Norwich, CT

Call +1860-889-6528Visit website

This business has not been verified by TradeCheck

A claimed profile is not a verified one. Ask them for a current certificate of insurance and a license before hiring.

This listing has not been claimed

It was built from public Google data. Nobody from the business has claimed it and TradeCheck has verified nothing about it.

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Verified by TradeCheck

What was checked

The license is checked with the state. The insurance certificate is reviewed by a person, and its expiration date is tracked. Each item shows the date we checked it. The business cannot mark anything verified.

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  • Identity & OwnershipNot yet checked
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  • Business RegistrationNot yet checked
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  • LicenseNot yet checked
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  • Standing & track recordNot yet checked
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  • General liability insuranceNot yet checked
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  • Workers' CompensationNot yet checked
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  • Commercial Auto InsuranceNot yet checked
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  • Umbrella / Excess LiabilityNot yet checked
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  • Surety BondNot yet checked
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  • Safety ProgramNot yet checked
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  • Safety Experience RatingNot yet checked
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  • OSHA Safety RecordNot yet checked
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  • Workforce Safety TrainingNot yet checked
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  • Verified Commercial ReferencesNot yet checked
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  • Financial CapacityNot yet checked
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  • Subcontractor ManagementNot yet checked
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  • Compliance & Track RecordNot yet checked
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  • Google Business ProfileNot yet checked
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    ExpiresRe-synced daily

TradeCheck grants this status, the business cannot. Data as of 2026-11-07 10:31 UTC.

How verification works

What the seal means, and who decides it.

  1. 1

    The business applies and hands over documents

    License, insurance, and proof of who owns the company. Submitting them proves nothing on its own, and nothing a business types about itself is displayed as verified.

  2. 2

    TradeCheck checks each one against its issuer

    Not against the paperwork sent to us. A license is checked with the state that issued it and insurance with the carrier, and the source and date of every check are published on this page.

  3. 3

    The Google listing is matched and read

    A verifier confirms which listing belongs to the business, then the rating and review count are read from Google on a schedule. Nobody at the business, and nobody here, can type those numbers.

  4. 4

    Staff grant the seal, or refuse it

    A person decides, against a published bar. The business cannot mark itself verified from any screen it has access to.

  5. 5

    It switches off by itself

    A certificate that expires, a lapsed check, or a suspension turns the seal off everywhere it is displayed, including on the business’s own website, within about a minute. There is no stale badge to find.

What the score counts

  • Credentials verified35%
  • Reputation on Google30%
  • Years in business15%
  • Standing and history20%

A business cannot buy any of this. Paying makes a seal visible once it has been earned. It does not create one, raise a score, or speed up a check, and no amount of money moves a rating that is read from Google.

Read the full methodology

Where homeowners find them

Diamond Plumbing & Heating Llc is listed on 21 town pages

Verified businesses are listed above this one on each page. Owners who claim and verify move up.

Questions about Diamond Plumbing & Heating Llc

The things people ask before hiring, answered from what was checked.

Is Diamond Plumbing & Heating Llc licensed and insured?+

Not yet verified. No records have been confirmed by TradeCheck. Insured: not yet confirmed by TradeCheck. Licensed: not yet verified by TradeCheck. TradeCheck checks each item against the body that issued it and publishes the date, and the business cannot mark anything verified itself.

Is Diamond Plumbing & Heating Llc legit?+

Diamond Plumbing & Heating Llc has a profile on TradeCheck but has not completed verification, so TradeCheck is not vouching for it. Ask for a current certificate of insurance and a license before hiring.

What areas does Diamond Plumbing & Heating Llc serve?+

Diamond Plumbing & Heating Llc serves Norwich, CT. The service area is the business's own statement about how far it travels, not a checked fact.

How is Diamond Plumbing & Heating Llc rated?+

Diamond Plumbing & Heating Llc rates 3.8 out of 5 from 29 reviews on Google. The rating is read from Google and is not editable by the business or by TradeCheck.

Call +1860-889-6528