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5 Best Furnace Repair Services Wilmington, DE

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Written By Callie Marsalisi|Last Updated: April 18, 2024

All homeowners need a reliable local furnace repair person. Whether you need regular maintenance or help for a heating emergency, a professional can help keep your heating and cooling systems running smoothly. Our comprehensive guide to the top heating, ventilation, and air conditioning (HVAC) services in Wilmington, Delaware will help you diagnose common issues and get the care you need. If you learn from this article that you need a full system replacement, check out our picks for the best furnace brands.

5 Best Furnace Repair Companies in Wilmington

Gold Star Services Logo

Gold Star Services

Based on 1,691 customer reviews.

Services Offered

FiltrationEmergency ServicesMaintenanceFurnace InstallationBoiler InstallationDuctlessAc InstallationFurnace RepairBoiler RepairIndoor Air QualityAc Repair


  • Clear pricing policy
  • Informative resources
  • Free quote
21a Industrial Blvd, New Castle, DE 302-947-8694 goldstarcooling.com
LIAM Services Logo

LIAM Services

Based on 690 customer reviews.

Services Offered

Ac InstallationInspectionMaintenanceDuctlessFurnace InstallationAc RepairEmergency ServicesBoiler RepairFurnace RepairBoiler InstallationFiltration


  • Prompt service delivery
  • Free quote
  • Informative resources
292 Churchmans Rd, New Castle, DE 302-202-9742 liamsvcs.com
Horizon Services - Air Conditioning, Plumbing & Heating Logo

Horizon Services - Air Conditioning, Plumbing & Heating

Based on 281 customer reviews.

Services Offered

InspectionFurnace RepairAc InstallationEmergency ServicesMaintenanceIndoor Air QualityBoiler InstallationFurnace InstallationFiltrationDuctlessAc Repair


  • Prompt service delivery
  • Free quote
  • Clear pricing policy
307 Ruthar Dr, Newark, DE 302-303-4975 horizonservices.com
Hentkowski, Inc. Logo


Based on 127 customer reviews.

Services Offered

DuctlessMaintenanceFurnace RepairFurnace InstallationAc InstallationAc RepairIndoor Air QualityEmergency Services


  • Clear pricing policy
  • Informative resources
  • Free quote
3420 Old Capitol Trl, Wilmington, DE 302-998-2257 hentkowski.com

More Local Hvac Companies

Enhanced Heating & Air Conditioning

User Reviews: 4.6/5 

68 Albe Dr
Newark, DE 19702

Hillside Oil Heating & Cooling

User Reviews: 4.6/5 

40 Brookhill Dr
Newark, DE 19702

D&T Heating & Cooling

User Reviews: 4.6/5 

2121 Bear Corbitt Rd
Bear, DE 19701

Aire Serv of Newark DE

User Reviews: 5/5 

134B Sandy Dr
Newark, DE 19713

Cool It Heating and Air

User Reviews: 4.6/5 

7 Riddlewood Dr
Media, PA 19063

Moon Air Inc.

User Reviews: 5/5 

1638 Elkton Rd
Elkton, MD 21921

Wesley Wood Service Experts

User Reviews: 5/5 

319A Westtown Rd
West Chester, PA 19382

Home Comfort Services

User Reviews: 4.7/5 

306 Caravel Dr
Bear, DE 19701

Dormann's Heating & Cooling, LLC

User Reviews: 5/5 

265 N Wolfert Station Rd
Mickleton, NJ 08056

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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Facts about Wilmington
Average Min Temp Percentile:67.9%
January Average Min Temp:26.4°F
Climate Zone:Mixed-Humid
Average Energy Cost:$0.12/kWh
Median Year Houses Built:1958
Average Annual Snowfall:21.5"

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Services Offered by Furnace Repair Companies

Furnace repair companies provide various services to ensure your furnace works efficiently and effectively. We go over some common services below.

Repair and Maintenance

Timely repairs not only restore your furnace's function, they also extend its lifespan and optimize energy efficiency. Furnace repair professionals are trained to handle broken blower motors, clogged air filters, malfunctioning thermostats, and more. Your technician can help diagnose and repair these and other issues to keep your furnace working effectively. A qualified HVAC technician can also help with issues like possible gas leaks, faulty ignitions, damaged heat exchangers, or malfunctioning thermostats. Your furnace repair professional can also perform routine HVAC system upkeep to help avoid unnecessary breakdowns. Your technician will ensure that all components function properly by inspecting your furnace, cleaning it, replacing air filters, and lubricating moving parts.


HVAC companies can also help you set up a new furnace. You might need a new system if yours is past repair or if you want to upgrade to a more energy-efficient option like a heat pump. Your technician first assesses your heating needs and home’s layout before recommending a furnace model for your requirements and budget. An HVAC professional can integrate a new system with existing air ducts and thermostats. They're trained to follow industry standards and safety protocols to ensure proper furnace replacement and connection. To ensure everything runs optimally, your technician will complete a final inspection after installation.


You need an inspection if you notice your furnace isn’t turning on. A technician will thoroughly inspect every part of the furnace to look for potential issues. Inspections typically include examining the heat exchanger for cracks or damage, checking for any gas or fuel leaks, inspecting the burner and ignition system, testing the thermostat's accuracy, and cleaning and replacing air filters. Your technician will look at the heating system's safety and efficiency and make any needed adjustments or repairs. Annual furnace tune-ups help ensure optimal performance and help prevent breakdowns, promoting a safe living environment during chilly winters.

Emergency Services

Emergency furnace repair services are invaluable if your furnace breaks down on a cold winter night. Many companies offer 24/7 services to help get your furnace up and running as soon as possible. These services help with unexpected malfunctions, breakdowns, and other safety concerns. Emergency services might cost more than a scheduled service, but protecting your health is worth it. If your furnace fails during extreme weather, and you're unable to open windows for fresh air, it can cause discomfort and serious health risks from the decreased indoor air quality.

Factors To Consider When Choosing a Local Wilmington Furnace Repair Service

You should consider several factors when choosing a local Wilmington furnace repair service. We’ve detailed them below.

  • Cost: Compare service offerings and prices among several Wilmington furnace repair providers. Look for competitive and transparent pricing while avoiding extremely low-cost options. Companies that offer services for abnormally low prices may make up the difference by compromising the quality of work or materials.
  • Guarantees: Reputable furnace repair companies should provide guarantees or warranties on their parts and workmanship. Providers that back their work this way offer you peace of mind if something goes wrong post-repair.
  • Licensing: Make sure your furnace repair provider holds all the required licenses and certifications. HVAC contractors in Delaware may have either a Master HVACR license or a Master HVACR Restricted license, both issued by the Delaware Division of Professional Regulation. Proper licensing ensures that technicians are qualified to handle furnace repairs safely.
  • Qualifications: Ask about a company's training policies and its technicians' experience. Companies that provide ongoing training tend to have technicians that use the latest repair techniques. Look for a company that employs well-trained technicians who are experienced in working with various furnace makes and models.
  • Reputation and reviews: Customer testimonials and other online reviews can give you an idea of a provider's reputation and commitment to customer satisfaction. Look for overall positive reviews, and pay attention to the way it addresses negative feedback or complaints.

How Much Does a Furnace Repair Cost?

Furnace repair costs depend on multiple factors. These include the extent of the damage, the type of HVAC unit, and the cost of replacement parts. Homeowners can expect to spend around $455 for furnace repair, although your total cost may vary. The following are some common furnace repairs, as well as their average costs.

  • Broken thermostat: $83–$413
  • Cleaning: $50–$66
  • Cracked heat exchanger: $1,651–$2,889
  • Damaged blower bearings: $25–$124
  • Damaged blower belt: $25–$91
  • Filter change: $33–$124

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Frequently Asked Questions About Furnace Repair in Wilmington

How often should I have my furnace serviced?

We recommend homeowners service their furnace at least once a year to ensure it runs efficiently and safely. Additionally, a simple maintenance step you can take is to change your home's furnace filter every year.

Does a home warranty cover a furnace?

Home warranties usually cover furnaces, but plans and services will vary by company. Learn more using our guide to top home warranty plans for furnace coverage.

How can I tell whether my furnace needs repairs?

Signs that your furnace is in need of repairs include uneven heating, strange noises, increased energy bills, or a yellow pilot light. A professional furnace repair company can inspect your furnace and tell you whether you need a full furnace replacement.

What should I do if my furnace breaks down in the middle of winter?

You may require emergency repair services if your furnace breaks down mid-winter. Some HVAC repair providers offer 24/7 emergency services to get your furnace back up and running.

How can I prevent the need for furnace repairs?

Routine furnace maintenance, such as cleaning and replacing air filters, can help prevent the need for repairs. Annual HVAC servicing is also important to catch potential problems before they escalate.

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