11 AC Installation Contractors in New Castle, DE

4.2 avg rating
4,790 total reviews4 offer 24/7 service
Need emergency service? 6 HVAC providers in New Castle offer 24/7 availability

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Top-Rated AC Installation Contractors in New Castle

#1

F.H. Furr Plumbing, Heating, Air Conditioning & Electrical

4.8(2,150 reviews)
24/7 Highly Rated

Every reviewer awarded 5 stars, with customers consistently praising individual technicians by name. Nick, Kyle, Trevor, Dylan, James, and Mikal all received…

21A Industrial Blvd, New Castle, DE 19720
#2

Burns & McBride Home Comfort

4.8(1,562 reviews)
24/7 Highly Rated

Across three detailed reviews, the company earned consistent 5-star ratings except for one instance involving post-installation adjustments that required…

18 Boulden Cir Suite 30, New Castle, DE 19720
#3

LIAM Services

5.0(997 reviews)
24/7 Highly Rated

All five reviewers awarded 5 stars except one, whose complaint centered on improper ductwork installation rather than responsiveness or electrical skill. Three…

292 Churchmans Rd, New Castle, DE 19720

All AC Installation Contractors (11 total)

Johnstone Supply

4.0(23)

5 of 8 reviewers award 5 stars, praising friendly knowledgeable staff, competitive pricing, and hands-on…

10 Commons Blvd, New Castle, DE 19720

Amstel Mechanical Contractors

4.6(13)

All 13 reviews award 5 stars, with customers consistently praising same-day emergency response, fair pricing,…

1183 S Dupont Hwy, New Castle, DE 19720

ModernControls

4.0(19)

Of 19 reviews, 8 rate the company 5 stars citing professional technicians, clear communication, and quality…

26 Bellecor Dr, New Castle, DE 19720

Federal Mechanical Contractors

5.0(9)

All 9 reviewers awarded 5 stars, with customers specifically naming technicians Jean, John, and Kevin. Three…

229 Hillview Ave, New Castle, DE 19720

JEM Comfort Care

4.7(9)

Five of six reviewers award five stars, with specific praise for same-day service, fair pricing, and…

1697 N Dupont Hwy, New Castle, DE 19720

HVAC Distributors

5.0(2)

All 2 reviews award perfect 5-star ratings, with customer Stephen Henderson describing the experience simply…

136-138 Quigley Blvd, New Castle, DE 19720

National HVAC Services

3.0(4)

One customer awarded a 5-star rating, praising technicians Richard, Dave, Connor, Jake, and Gabe for their…

42 Southgate Blvd # A, New Castle, DE 19720

Carrier Commercial Service

1.0(2)
24/7

Both documented reviews awarded 1 star, indicating significant customer dissatisfaction. Oscar Holton's…

276 Quigley Blvd, New Castle, DE 19720

AC Installation Costs in New Castle

New central AC installation costs in New Castle, by system type and brand.

ServiceLowAverageHigh
Window unit
$150$350$700
Ductless mini-split (single zone)
$2,000$4,500$8,000
Central AC replacement (existing ducts)
$3,500$6,500$12,000
Central AC new install (with ductwork)
$7,000$12,000$20,000
Carrier (residential)
$3,800$6,200$10,500
Trane (residential)
$5,000$8,800$13,600
Lennox (residential)
$3,500$6,500$12,000
Rheem (residential)
$3,200$5,500$9,000

Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Installation in New Castle, DE: What to Expect

New Castle’s position in the Brandywine Valley and the Delmarva corridor creates a two-season climate that puts equal pressure on cooling and heating systems. Hot, humid summers with frequent 90°F days push homeowners to upgrade or replace air conditioning more often, so ac-installation New Castle is a recurring household investment. Eleven contractors serve the area, averaging a 4.2 rating across 4,807 reviews, and four firms advertise 24/7 availability for urgent summer breakdowns.

Price patterns depend on equipment size, system type and installation complexity; top cost drivers are the outdoor unit, indoor air handler or furnace used in dual-fuel and heat-pump setups, ductwork modifications and permit or disposal fees. Specific topCostItems figures were not provided in the supplied data, but homeowners should budget for higher costs when switching to a heat pump or adding new ducts. Delaware requires contractors to hold a Master HVACR Contractor License (unrestricted) or a Master HVACR Restricted license through the state Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners.

Customer highlights weren’t included in the data, so review patterns are the next best indicator: responsiveness, experience with heat pumps and dual-fuel systems, and clear warranty terms are commonly praised in this market. Given the tristate commute and varying microclimates into southeastern Pennsylvania and southern New Jersey, prioritize contractors who document load calculations, offer references for similar installations, and provide emergency service options.

Frequently Asked Questions

New AC installation in New Castle costs $150-$20,000 depending on system type. Window units run $150-$700, ductless mini-splits $2,000-$8,000 per zone, central AC replacement with existing ducts $3,500-$12,000, and full new installs with ductwork $7,000-$20,000. SEER rating, tonnage, and brand significantly affect pricing.