Durham, NC Furnace Repair

Honest Assessments and Effective Solutions in Durham County

A furnace that's struggling to keep up, making strange noises, or refusing to start at all isn't something to put off, especially once the colder months arrive. The longer a heating problem goes unaddressed, the more likely it is to turn into something more serious and more expensive. Getting a reliable technician out quickly to assess the situation honestly is almost always the smartest move.

CWJ Heating & Air Conditioning has been diagnosing and resolving furnace issues since 1972, and our approach hasn't changed. Our five-star-rated technicians are paid hourly, not on commission, which means you'll always get a straight assessment of what's actually wrong and what it genuinely takes to fix it. We're a local, family-owned team with deep roots in this community, and we're not interested in recommending repairs you don't need. We're interested in solving your problem and making sure your system runs reliably for as long as possible.

Having furnace trouble? Call CWJ Heating & Air Conditioning at (919) 296-4999 or contact us online to request a free repair estimate!

How We Find and Fix the Root Cause of Your Furnace Issues

Furnace problems have a way of masking themselves. What looks like a simple issue on the surface is sometimes a symptom of something deeper, and a repair that doesn't address the actual cause will leave you calling for help again before long. Our technicians are trained to look past the obvious and find what's really going on before any repair work begins. 

Our furnace repair services cover:

  • Ignition and pilot light failures. A furnace that won't start or struggles to stay lit often points to a faulty ignitor, a malfunctioning flame sensor, or a problem with the gas supply. We'll identify the specific cause and address it directly rather than defaulting to a parts swap.
  • Heat exchanger issues. A cracked or damaged heat exchanger is one of the more serious furnace problems a homeowner can face, as it can allow combustion gases to enter your living space. We carefully inspect heat exchangers and provide an honest assessment of repair versus replacement when necessary.
  • Blower motor and airflow problems. A furnace that runs but doesn't distribute heat effectively may have a failing blower motor, a worn belt, or a restricted airflow path. We trace the problem to its source and restore proper system performance.
  • Control board and electrical faults. Modern furnaces rely on electronic controls that can fail in ways that aren't immediately obvious. Our technicians have experience diagnosing electrical faults accurately and resolving them without unnecessary component replacements.
  • Short cycling and thermostat issues. A furnace that turns on and off too frequently is often dealing with an oversensitive limit switch, a miscalibrated thermostat, or a deeper mechanical issue that needs proper diagnosis before any fix is applied.

Whatever your furnace is doing, or not doing, we'll figure out why and give you a clear, honest plan to resolve it.

  • Customer Resources
    We're here to deliver solutions and help you understand the problem. Check out our blogs for helpful information about your systems.
  • Maintenance Plans
    Having a maintenance plan will ensure your home is at the right temperature year-round. Learn more about what you can expect from ours!
  • Current Promotions
    We have a lot of promotions going on to help you save. Check out what the specials we're currently running and take advantage of them now!

Our Gas Line Expertise Makes a Real Difference 

Most HVAC companies can handle standard furnace components, but gas-related furnace problems require a different level of qualification. CWJ Heating & Air Conditioning is fully licensed for gas piping installation and repair, which means we're equipped to identify and address issues that go beyond the furnace unit itself, including problems with the gas supply line, connections, or pressure that may be contributing to your heating trouble.

This matters because gas-related issues are both common causes of furnace problems and genuinely dangerous when handled by someone without the proper credentials. When our technicians trace a furnace issue back to the gas system, we have the licensing and experience to address it properly on the spot, without bringing in a separate contractor or leaving the job half-finished. It's one more way that five decades of experience and the right qualifications translate into better, safer service.

For honest furnace repair from a fully licensed local team, call CWJ Heating & Air Conditioning at (919) 296-4999. We're available 24/7 and ready to help!

  • FREE Merv Media Filter

    Get a free Merv Media Cabinet & Filter ($225 value) with the purchase of system.

    Restrictions may apply. Must mention coupon at time of booking.
    Valid Dec 15, 2022 - Dec 15, 2030
  • $300 Planned Service Contracts

    Flat low rate for 2 service trips per year for up to (2) systems per home. Price includes tax.

    Restrictions may apply. Must mention coupon at the time of booking.
    Valid Dec 15, 2022 - Dec 15, 2030
  • 15% OFF Whole-House Dehumidifier

    Get 15% off a whole-house dehumidifier system. Equipment only.

    ** Installation not included.–Need to advise CWJ staff you have a coupon when requesting service
    Valid Dec 15, 2022 - Dec 15, 2030
  • $100 OFF Any New System

    Get $100 off the equipment for a completely new HVAC system that is purchased and installed by CWJ Heating & Air.

    Restrictions may apply. Must mention coupon when scheduling service.
    Valid Dec 15, 2022 - Dec 15, 2030
  • $35 OFF Any Smart Stat

    Get a Nest, Ecobee, Honeywell, or any Smart Stat of your choice for $35 Off.

    ** Installation not included–Need to advise CWJ staff you have a coupon when requesting service.
    Valid Dec 15, 2022 - Dec 15, 2030
  • 10% OFF On Demand Services

    HVAC broken? Get 10% off the service call labor.

    ** During regular operation hours only. Need to advise CWJ staff you have a coupon when requesting service.
    Valid Dec 15, 2022 - Dec 15, 2030
    “5-star company!”
    “Excellent people very technical group of people.”
    - Kurt Y.
    “We are so grateful to have heat again!”
    “Brett was responsive and courteous. Jairo was respectful, prompt, understanding and knowledgeable.”
    - Louisa L.
    “Christian was polite and helpful.”
    “He explained everything well. He arrived during the scheduled time.”
    - Tonya
    “I would definitely recommend CWJ to my friends.”
    “Same day service when my heat first went out - on a Saturday - which ultimately got replaced.”
    - Judy S.
    “The technician came within 90 minutes of my call.”
    “CWJ responded very quickly to my request to check behavior of my heating system.”
    - Nils B.
    “Outstanding job you guys”
    “He went above and beyond by also spraying and cleaning the enternal and external system.”
    - Kenyon L.
    “Daniel was great and took care of everything we needed”
    “Would definitely recommend for any HVAC services.”
    - Chasity Holt
    “Highly recommend CWJ Heating & Air.”
    “Looking forward to working with them in the future for all of my HVAC needs!”
    - Kristen B.