What is the phone number for National HVAC Service?

(302) 323-1776. You call National HVAC Service directly; AssistAnt never sits in the middle.

Where is National HVAC Service?

National HVAC Service serves New Castle, DE as a service-area business (no street address shown).

Is National HVAC Service still in business?

Listed from public business records, last updated September 30, 2026. Call to confirm.

Is National HVAC Service licensed and insured?

Not verified by AssistAnt yet. Ask for proof of license and insurance before you hire.

Who else is near New Castle?

AssistAnt lists 248 HVAC companies near New Castle. Closest to National HVAC Service: Seiberlich Trane Energy Services (0.1 mi), Gold Star Services (0.1 mi), Harris Plumbing, Heating, Air & Electrical (0.3 mi).

National HVAC Service · (302) 323-1776

AssistAnt › Pro directory › New Castle, DE

What we do

Services

❄️Heating & air conditioning (HVAC)

Checked, with dates

🧾 Trust Card · 2 receipts

Listed in the AssistAnt 24/7 directoryBusiness record from Overture Maps open business data (CDLA-Permissive-2.0).
Sep 30
Shown as open for business in the source dataOperating status in the business record.
Sep 30

Not verified yet: Owner has not confirmed this listing yet; License and insurance not reviewed by AssistAnt yet; No AssistAnt job history linked to this listing yet.

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In their words

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Where

Service area

Map of the New Castle, DE area (© Google). Is this your business? Claim it and put up your own photos →

About National HVAC Service

National HVAC Service is listed on AssistAnt for heating & air conditioning (hvac) in New Castle, DE.

Built from public business information. Call to confirm before you go.

Contact

Phone: (302) 323-1776
Website: nationalhvacservice.com
Location: New Castle, DE, 19720 (service area)
Booking: Not bookable online yet. Call the business directly.

Listed from public recordsNot verified yet. Details come from open business data and may be out of date.See the Trust Card: what we checked, how and when →

Quick facts about National HVAC Service

What is the phone number for National HVAC Service?: (302) 323-1776. You call National HVAC Service directly; AssistAnt never sits in the middle.
Where is National HVAC Service?: National HVAC Service serves New Castle, DE as a service-area business (no street address shown).
Is National HVAC Service still in business?: Listed from public business records, last updated September 30, 2026. Call to confirm.
Is National HVAC Service licensed and insured?: Not verified by AssistAnt yet. Ask for proof of license and insurance before you hire.
Who else is near New Castle?: AssistAnt lists 248 HVAC companies near New Castle. Closest to National HVAC Service: Seiberlich Trane Energy Services (0.1 mi), Gold Star Services (0.1 mi), Harris Plumbing, Heating, Air & Electrical (0.3 mi).

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AI Visibility Score

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What the AIs say

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Other HVAC companies nearby

Seiberlich Trane Energy ServicesNew Castle, DE · 0.1 mi
Gold Star ServicesNew Castle, DE · 0.1 mi
Harris Plumbing, Heating, Air & ElectricalNew Castle, DE · 0.3 mi
Burns & McBride Home ComfortNew Castle, DE · 0.3 mi
Affordable Heating & Air ConditioningNew Castle, DE · 1.0 mi
ModernControls IncNew Castle, DE · 1.1 mi

All HVAC companies near New Castle, DE (248) →

Every trade and local freelancer in New Castle →

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