No heat or no cooling right now?
If you smell gas or a carbon monoxide alarm sounds, leave first and call 911 or your gas utility from outside. Otherwise, call a company below that says it takes emergency calls. Quick checks first: AC not cooling · furnace not working.
The list
Wilmington HVAC companies, A to Z
Filter by what each business says on its own website. “Says 24/7 emergency” means its site says so – call to confirm before you rely on it.
Your HVAC company, Wilmington
The one City Spotlight place for Wilmington sits here, above the A to Z list. Requests sent from this page for areas the Spotlight company serves go to it. Offered only to companies that pass our listing rules. How it works
Ambience HVAC, Inc.
Based in Wilmington, DE · 3701 Oak Ridge Rd, Wilmington, DE 19808
Names on its website: Hockessin, Pike Creek, Newark, New Castle, Middletown, Smyrna, Elkton, Chadds Ford, Kennett Square, Landenberg and more
Beacon Air Inc.
Based in New Castle, DE · 23 Parkway Circle Ste 9, New Castle, DE 19720
Names on its website: Wilmington, Bear, Middletown, Newark, Greenville, Hockessin
License number shown on its website: License #360918
Brandywine Heating & Air
Based in Wilmington, DE · 105 N Colonial Ave, Wilmington, DE 19805
Names on its website: Bear, Claymont, Delaware City, Edgemoor, Greenville, Hockessin, Middletown, New Castle, Newark, Pike Creek and more
License number shown on its website: UTO655
Burns & McBride
Based in Wilmington, DE
Names on its website: Arden, Bear, Claymont, Edgemoor, Elsmere, Greenville, Hockessin, Middletown, New Castle, Newark and more
Chadds Ford Climate Control
Based in Kennett Square, PA · 816 E. Baltimore Pike, Kennett Square, PA 19348
Names on its website: Chadds Ford, West Chester, Glen Mills, Garnet Valley, Hockessin, Greenville, Newark, Talleyville, Centerville, Westover Hills and more
License number shown on its website: PA060983
Chadds Ford Complete Services, LLC
Based in Kennett Square, PA · 402A N Mill Rd., Kennett Square, PA 19348
Names on its website: Chadds Ford, West Chester, Chester County, Delaware County
D&T Heating and Cooling
Based in Bear, DE · 2121 Bear Corbitt Rd, Bear, DE 19701
Names on its website: Claymont, Elsmere, Glasgow, Hockessin, Middletown, Newark, New Castle, Pike Creek, Wilmington, Elkton and more
License number shown on its website: Delaware HL-0000520; Maryland 82320; Pennsylvania 076195
Delaware Heating & Air Conditioning Service Inc
Based in Newark, DE · 11 McMillan Way, Newark, DE 19713
Enhanced Heating & Air Conditioning
Based in Newark, DE · 68B Albe Drive, Newark, DE 19702
Names on its website: Wilmington, Bear, Middletown, Hockessin, New Castle, Glasgow, Pike Creek, Greenville, Townsend, Claymont
Hentkowski Inc.
Based in Wilmington, DE · 3420 Old Capitol Trail, Wilmington, DE 19808
Hillside Oil Heating & Cooling
Based in Newark, DE · 40 Brookhill Drive, Newark, DE 19702
Names on its website: New Castle County, Elkton, Cecil County, Southern Chester County
Home Comfort Services, LLC
Based in Bear, DE · 306 Caravel Dr, Bear, DE 19701
Names on its website: Claymont, Greenville, Hockessin, Middletown, New Castle County
License number shown on its website: License #NCCUT0899
Horizon Services
Based in Wilmington, DE · 320 Century Blvd, Wilmington, DE 19805
Names on its website: Hockessin, Pike Creek, North Star, Yorklyn, Marshallton, Ashland, Elsmere
License number shown on its website: DE HVAC: HL0000299
Joseph Frederick & Sons
Based in Wilmington, DE · 810 Stanton Road, Wilmington, DE 19804
Names on its website: Bear, Brandywine, Claymont, Elsmere, Greenville, Hockessin, Middletown, New Castle, Newark, Newport and more
License number shown on its website: HVACR: HM-0000080
Maichle's Heating and Air Conditioning
Based in New Castle, DE · 105 J and M Drive, New Castle, DE 19720
Names on its website: Wilmington, New Castle County, Middletown, Smyrna
Moon Air
Based in Elkton, MD · 1638 Elkton Road, Elkton, MD 21921
Names on its website: North East, Chesapeake City, Wilmington, Newark, New Castle, Bear, Glasgow, Hockessin, Middletown, Claymont and more
License number shown on its website: Delaware HM-0000222, Pennsylvania PA055215, Maryland 15672
My Cousin Vinnie
Based in Newark, DE
R. Brooks Mechanical Inc.
Based in Kennett Square, PA · 964 E. Baltimore Pike, Kennett Square, PA 19348
Names on its website: Wilmington, Newark, Middletown, New Castle, Hockessin, West Grove, Landenberg, West Chester, Elkton
Schagrin Home Comfort Products
Based in Middletown, DE · 1000 North Broad Street, Middletown, DE 19709
Names on its website: Elkton, West Grove
Service Unlimited, Inc. (SUI)
Based in New Castle, DE · 19 Southgate Boulevard, New Castle, DE 19720
Names on its website: Delaware
Triton Services
Based in Delaware City, DE · 600 Madison St., Delaware City, DE 19706
Names on its website: Middletown, Odessa, Townsend, Wilmington, Claymont, Bear, Hockessin, Pike Creek, Newark, New Castle and more
Woodrow Services
Based in Wilmington, DE
Names on its website: Stanton, Newport, Elsmere, Greenville, Marshallton, Edgemoor, Newark, New Castle, Bear, Claymont and more
Details on this page come from each business’s own website, checked October 2026. Free listings are shown alphabetically. How we list · Update or remove a listing
Before you hire
Checking an HVAC company in the Wilmington area
HVAC licenses in Delaware
HVAC contractors are licensed by the state.
License types: Master HVACR Licensee, Master HVACR Restricted Licensee.
Companies: Under 24 Del. C. 1820(a) a person may not provide HVACR or HVACR restricted services in Delaware unless licensed as a master HVACR licensee or master HVACR restricted licensee. Exemptions include apprentices and mechanics working under a master licensee and homeowners working on their own residence (not for sale or rent, and not gas piping).
Check a license: delpros.delaware.gov
Verify the master HVACR license on the state's DELPROS lookup and note that a restricted license limits the holder to one specialty such as air conditioning or forced-air heating.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
Sources: dpr.delaware.gov, dpr.delaware.gov, delcode.delaware.gov, delcode.delaware.gov. Checked October 2026 from official sources. This is not legal advice.
HVAC licenses in Maryland
HVAC contractors are licensed by the state.
License types: Master License, Master Restricted License, Limited License, Journeyman License, Journeyman Restricted License, Apprentice License.
Companies: Under Business Regulation Article 9A-301, an individual must be licensed by the Board before providing or assisting in providing heating, ventilation, air-conditioning or refrigeration services in Maryland. Contracting businesses work under a Master (all HVACR areas), Master Restricted (selected areas) or Limited (maintenance and repair only) license.
Check a license: dllr.state.md.us
Search the company's license on the Board's license search and make sure the license class (Master, Master Restricted or Limited) matches the work you are hiring them to do.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
Sources: labor.maryland.gov, labor.maryland.gov, labor.maryland.gov, mgaleg.maryland.gov. Checked October 2026 from official sources. This is not legal advice.
HVAC licenses in Pennsylvania
There is no statewide HVAC contractor license that we could find; cities or counties license HVAC work.
Who licenses: Local governments
Local rules: Pennsylvania states it has no licensure or certification requirement for most construction contractors, so HVAC licensing is left to municipalities (for example, Philadelphia requires mechanical work to be done by a licensed contractor with an active L&I license, and has a separate Warm Air Installer License page that we could not open).
Confirm the contractor's registration number on the Attorney General's Home Improvement Contractor search (https://hicsearch.attorneygeneral.gov/) (required for $5,000 or more of home improvement work a year, including central heating and air conditioning), then ask your own city or township whether it requires a local HVAC license or permit.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
We could not confirm every detail from Pennsylvania’s own sources, so treat this as a starting point and check with the agency.
Sources: pa.gov, attorneygeneral.gov, attorneygeneral.gov, phila.gov. Checked October 2026 from official sources. This is not legal advice.
Questions to ask
Ask every company the same questions: license number, insurance, EPA refrigerant certification, a written itemized estimate, a load calculation for new equipment, after-hours rates, who pulls the permit, and the warranty. All eight questions.
Seasonal care
Year-round care in Wilmington
Wilmington homes lean on both heating and cooling, so each system needs a check before its season: cooling in spring, heating in fall.
Questions
Wilmington HVAC questions
How many HVAC companies are listed in Wilmington?
22 HVAC companies, each based within about 35 miles of Wilmington. They are listed alphabetically.
Which Wilmington HVAC companies say they offer 24/7 emergency service?
13 of the businesses listed here say on their own website that they offer 24/7 or 24-hour emergency service: Ambience HVAC, Inc., Beacon Air Inc., Brandywine Heating & Air, Burns & McBride, Chadds Ford Complete Services, LLC, Enhanced Heating & Air Conditioning, Home Comfort Services, LLC, Horizon Services, Maichle’s Heating and Air Conditioning, My Cousin Vinnie, R. Brooks Mechanical Inc., Triton Services and others. Call to confirm availability and after-hours rates.
Do HVAC contractors in Wilmington need a license?
Delaware licenses HVAC contractors statewide through the Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners (Division of Professional Regulation). Check a license at delpros.delaware.gov.
Which Wilmington companies work on heat pumps?
14 of the listed businesses say on their own website that they install or repair heat pumps. Use the Heat pumps filter above the list.
Which HVAC companies here do commercial work?
15 of the listed businesses say on their own website that they work on commercial properties. Use the Commercial filter above the list.
Do technicians need EPA certification?
Yes: federal rules require technicians who handle refrigerant to hold EPA Section 608 certification, in every state. Ask any company you are considering.
Nearby metro areas: Philadelphia, PA · Baltimore, MD · Pittsburgh, PA · Allentown, PA · Harrisburg, PA. All of Delaware.
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No heat in freezing weather, or no cooling in dangerous heat? Call a company from the list that says it takes emergency calls – a form is not fast enough. If you smell gas or a carbon monoxide alarm sounds, leave first and call 911 or your gas utility from outside.