Skip to main content
  • Written by
    Max Peterson
  • Fact Checked
  • Updated

Technical malfunctions can be a nightmare scenario for residents who need an air conditioner (AC) repair in Wilmington, especially in the summer when keeping cool is essential.

Whether it's simple repairs or a full replacement you need, This Old House recommends starting your AC repair company search with these highly-rated Wilmington providers.

10 Best AC Repair Companies in Wilmington

Brands are algorithmically curated from a database of local service providers near you. We require a minimum number of Google reviews and average ratings for provider inclusion.

Top Rated Provider
Top Rated

One Hour Heating & Air Conditioning® of Wilmington

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 2166 reviews


410 Meco Dr, Wilmington, DE 19804

(302) 449-9268

www.onehourheatandair.com/wilmington
Gold Star Services Logo

Gold Star Services

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 1691 reviews


21A Industrial Blvd, New Castle, DE 19720

(302) 947-8694

goldstarcooling.com
Maichle's Heating and Air Conditioning Logo

Maichle's Heating and Air Conditioning

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 483 reviews


105 J and M Dr, New Castle, DE 19720

(302) 328-4822

maichleshvac.com
LIAM Services Logo

LIAM Services

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 690 reviews


292 Churchmans Rd, New Castle, DE 19720

(302) 202-9742

liamsvcs.com
Delfera Heating & Cooling, Co Logo

Delfera Heating & Cooling, Co

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 1239 reviews


3581 Concord Rd, Aston, PA 19014

(610) 957-0002

www.delfera.com

Horizon Services - Air Conditioning, Plumbing & Heating

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 281 reviews


307 Ruthar Dr, Newark, DE 19711

(302) 303-4975

www.horizonservices.com
Old School Heating & Cooling LLC Logo

Old School Heating & Cooling LLC

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 97 reviews


2 Woodsedge, Claymont, DE 19703

(302) 383-7036

www.oldschoolheat.com
Hentkowski, Inc. Logo

Hentkowski, Inc.

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 127 reviews


3420 Old Capitol Trl, Wilmington, DE 19808

(302) 998-2257

www.hentkowski.com

Brandywine Heating And Air

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 30 reviews


1001 Greenbank Rd, Wilmington, DE 19808

(302) 750-3123

www.brandywineheatingandair.com

R. Brooks Mechanical Inc.

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 45 reviews


964 E Baltimore Pike, Kennett Square, PA 19348

(610) 365-4690

www.rbrooksmechanical.com

Facts about Wilmington

  • Average Max Temp Percentile:
    61%
  • August Average Max Temp:
    84°F
  • Climate Zone:
    Mixed Humid
  • Average Energy Cost:
    0.12/kWh
  • Median Year Houses Built:
    1958
  • Average Heat Waves per Year:
    7.17

Common Types of Air Conditioners

By understanding which type of air conditionersystem you have, you'll feel more confident in your contractor search. Wilmington HVAC technicians have experience with different AC makes and models, and they can adapt their skills to your needs.

  • Window-mounted ACs: Window air conditioners are a popular choice for Wilmington condos, apartments, and townhomes. These compact, affordable units are designed for cooling small spaces and single rooms, and they fit snugly in a window frame or dedicated wall slot. Many window-mounted air conditioner users set up their units without professional assistance, though technicians can still help with maintenance and repairs.
  • Split ACs: Split air conditioner units have two main elements: one inside and one outside. They offer silent operation, improved energy efficiency, ductwork options, and more cooling capability versus mini-splits.
  • Ductless mini-split: Ductless mini-split air conditioner systems have an outdoor unit and multiple interior units, with no ductwork required. They offer higher energy efficiency, flexible installation options, and individual room temperature control.
  • Central AC: These are the most common residential AC systems, offering consistent, precise temperature control. They feature a central unit that cools and purifies outside air and sends it through ducts to various rooms in your home.
  • Portable air conditioners: As the name implies, portable air conditioner systems don't require permanent installation or ductwork. Instead, they remove hot air through an exhaust hose connected to a window or nearby vent. They're a common choice for apartments, condos, or individual rooms.

How to Choose Your Wilmington AC Repair Service

You likely want a swift resolution for your air conditioner's problem. However, before hiring a repair company, it's important to do careful research to ensure it's the best for your home. Here are a few essential steps to follow.

Confirm the Company Is Properly Licensed and Insured

Delaware's Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners issues HVAC licenses. There are both specialty-restricted and master licenses, so ensure your contractor has credentials for the specific services you need.

The qualifications for a Delaware master license are strict. If a businessowner didn't go through the apprenticeship and journeyman system, they need seven years of industry experience to apply.

Many states and cities also require companies to carry liability insurance. Even if your community doesn't require it, we still recommend choosing an insured company. This will protect you if an accident happens or something gets damaged.

Read Customer Reviews

Find customer reviews on the Better Business Bureau (BBB) website for each company you're interested in. The BBB recognizes businesses that resolve complaints professionally and honor their warranties.

It's common for even the best AC repair providers to have both positive and negative reviews. Read each one carefully, and avoid a business if most reviewers had subpar experiences.

Compare Estimates

Obtain at least three detailed, written estimates from different providers for the best deal. A good estimate should factor in additional fees such as permitting costs. You should also ask about installer guarantees, the emergency repair process, and manufacturer warranties.

Frequently Asked Questions about AC Repair in Wilmington

Sources

FEMA

Explore Useful Articles On AC Repair

What Is HVAC and How Does It Work? (2024 Guide)

What Is HVAC and How Does It Work? (2024 Guide)

Brenda Woods-April 23, 2024

What Size Air Conditioner Do I Need? (2024 Guide)

What Size Air Conditioner Do I Need? (2024 Guide)

Brenda Woods-May 2, 2024

Heat Pump vs. Air Conditioner (2024 Guide)

Heat Pump vs. Air Conditioner (2024 Guide)

Brenda Woods-May 2, 2024

What Is SEER? (2024 Guide)

What Is SEER? (2024 Guide)

Brenda Woods-April 10, 2024

Types of Home Heating Systems (2024 Guide)

Types of Home Heating Systems (2024 Guide)

Brenda Woods-May 16, 2024

What Do HVAC Contractors Do? (2024 Guide)

What Do HVAC Contractors Do? (2024 Guide)

Brenda Woods-April 18, 2024

Related Cost Guides

How Much Does AC Condenser Replacement Cost?

How Much Does AC Condenser Replacement Cost?

Brenda Woods-May 2, 2024

How Much Does Evaporator Coil Replacement Cost?

How Much Does Evaporator Coil Replacement Cost?

Brenda Woods-May 2, 2024

How Much Does a Heat Pump Cost? (2024 Pricing)

How Much Does a Heat Pump Cost? (2024 Pricing)

Brenda Woods-May 30, 2024

How Much Does an AC Compressor Cost? (2024 Guide)

How Much Does an AC Compressor Cost? (2024 Guide)

Brenda Woods-May 2, 2024

How Much Does HVAC Installation Cost? (2024 Pricing)

How Much Does HVAC Installation Cost? (2024 Pricing)

Brenda Woods-May 8, 2024

How Much Does Air Duct Replacement Cost? (2024 Guide)

How Much Does Air Duct Replacement Cost? (2024 Guide)

Brenda Woods-May 8, 2024