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Delaware Licensed HVAC Contractor List

1,233 records in our covered Delaware sources. Snapshot refreshed 2026-07-10. Build a roster for your territory, with phone and email where available. Credential requirements vary by trade and locality; review the state guidance below.

Delaware DPR (Division of Professional Regulation) + Division of Revenue · Source snapshot
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Why verification matters

Ask how the system will be sized, what equipment is included and who handles electrical, refrigerant and permit requirements. Check the relevant credentials rather than assuming every state uses an HVAC license.

Projects for hvac contractors

AC repair and won't-cool callsFurnace and heat-pump replacementNew system install or zoningSeasonal tune-upsDuctwork and airflow fixes

For businesses

Buy the hvac contractors list in Delaware, by territory

Public-source records for the selected trade and territory, enriched with phone, email and website where available. Review coverage and filters before buying. Draw your territory and pay for what you draw. Or build a list in two minutes →

WilmingtonNewarkDoverMiddletownLewesNew CastleBearClaytonSeafordHarringtonWyomingSmyrnaGeorgetownLaurelTownsendMillsboroMagnoliaMiltonHockessinFrankfordHarbesonGreenwoodSelbyvilleHartly
Tap the map to set your territory center.Two fingers to move & zoom

Radius

Statewide

Sources and limits

Where this list comes from

Our Delaware roster uses covered records from Delaware DPR (Division of Professional Regulation) + Division of Revenue. A current source check is still needed. Counts describe records in that snapshot, not every business operating in the state.

A license or registration record is a starting point. Credential types and scope differ by jurisdiction; a listing does not establish today's status or authorization for every type of work.

Before hiring, match the business and credential number with the relevant authority, check scope and current status, and confirm local permits. Contacts and Google ratings, when present, are separate enrichment rather than licensing evidence.

Data sources and quality standards →

Why ContractorRoster

Public records, organized for your territory.

Find hvac contractors for AC repair and won't-cool calls, furnace and heat-pump replacement, and related work. Choose your territory and review available contacts before buying. Check the source credential and project scope before hiring.

Delaware: credentials and scope

Delaware separates the Division of Revenue business license, Department of Labor contractor registration and professional trade credentials. Construction businesses must address the registration requirements before work begins.

A revenue license is not an electrical or other professional license. Check the relevant DELPROS credential separately and confirm local requirements for the project.

Example: For electrical construction, verify the professional electrical license as well as the business and contractor-registration requirements.

Keep the three Delaware checks distinct
  1. Identify the business’s Division of Revenue license and Department of Labor contractor registration. These answer different administrative questions.
  2. For electrical and other regulated trades, search the relevant DELPROS professional credential separately. A revenue license is not an electrical license.
  3. Ask the project jurisdiction about permits and local requirements. Keep the exact business name and credential numbers together so similarly named entities are not combined by mistake.

Example: an electrical contractor sends a revenue license. Ask for the professional electrical credential and the applicable contractor-registration information instead of treating the revenue document as trade authorization.

Scope guidance reviewed 2026-09-23. Recheck the official record before hiring.

Use cases

  • ✓Standing up an HVAC vendor roster for a new property in a new market
  • ✓Building a commercial bidder list before an RFP goes out Friday
  • ✓Finding licensed HVAC backup when a tenant emergency hits at 9pm Sunday
  • ✓Pulling equipment-rep outreach lists across an entire region in one CSV

Top cities for hvac contractors in Delaware

1Wilmington77
2Newark68
3Dover36
4Middletown27
5Salisbury26
6Lewes25
7New Castle24
8Bear23
9Harrington21
10Smyrna20

1,233 records in our Delaware hvac contractors snapshot, with contact fields where available. See the full Delaware map →

Other trades in Delaware

HVAC Contractors in other states

Common questions about hvac contractors in Delaware

How do I research hvac contractors in Delaware?

Start with the authority for the trade and project locality. Match the exact business and credential number, check current status and scope, then ask about local permits, insurance and comparable work. A directory listing or rating does not complete those checks.

How many hvac contractors does the Delaware roster cover?

Our snapshot contains 1,233 records in this category. Records are not necessarily unique companies, and source coverage is not a census of every business in the state.

Where does this data come from?

Covered records come from Delaware DPR (Division of Professional Regulation) + Division of Revenue. License and registration types differ; check the credential that applies to your project. Contacts and ratings are separate enrichment where available.

What contact information is included?

Available fields can include phone, email, website and Google ratings. Availability varies by record and selection; an unavailable field is not a zero, closure or negative finding. Review the selected inventory before purchase.

What will my list cost and when will it arrive?

The current purchase flow shows the price for your selected territory and filters before checkout. Larger website orders are typically delivered within one business day. Custom research scope and delivery timing are agreed before purchase.

Does this list establish current license status?

No. The recorded source refresh date is 2026-07-10. This is a snapshot rather than a live-status guarantee. Verify the appropriate official record before hiring.

From $19. Pay for what you draw

Draw your territory on the map; the price follows the size of the list. Pay once. Larger website orders typically arrive within one business day. No subscription, no account.

✓ Name, license #, expiration, verification URL✓ Phone, email, website where available✓ Google rating + review count, Yelp link✓ Territory intel: population, income, permits, storms✓ CSV ready for Excel or Google Sheets