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Emergency HVAC Services in Charleston

ACE-Certified Technicians. Service Experts Guarantee. No After-Hours Fees for Members.

When your heating or cooling stops working, Service Experts Charleston responds to urgent HVAC problems for homeowners and small businesses across Charleston. Our team handles unexpected breakdowns, strange noises, burning smells, and water leaks, working to restore comfort and safety as quickly as possible. We hold a 4.9 average customer rating on Google, and our technicians are ACE (Advanced Certified Expert) certified, meaning they meet higher passing score requirements than standard certifications and complete annual re-certification in ethics and product knowledge.

From the first call, we focus on careful diagnosis, practical options, and respectful service inside your home or business. We explain what we find in plain language and outline costs before work begins, so you stay in control of every decision.

A broken HVAC system can’t wait. Our technicians in Charleston are ready to help. Contact our team online or call (843) 791-2246.

When HVAC Issues Are Emergencies

Some heating and cooling problems can wait a day. Others can’t. In Charleston’s humid subtropical climate, indoor temperatures rise fast when cooling fails, and a heat pump that stops working loses both heating and cooling capability at once, making it one of the most urgent emergencies a homeowner can face.

Loss of cooling during peak heat is a genuine health risk, especially for young children, elderly family members, or pets. No heat during a cold snap carries the same urgency for vulnerable household members. Electrical burning smells, smoke, or visible sparks near your equipment are always cause to shut the system down immediately. Water leaking from the indoor unit onto ceilings, walls, or floors can cause serious property damage if left unaddressed.

Before you call, two safe checks are worth trying: confirm your thermostat has power and verify that breakers haven’t tripped. If everything looks normal but the system still won’t start, or if anything smells or sounds unsafe, stop troubleshooting and call for emergency HVAC service.

Common signs you should call for emergency HVAC service include:

  • No air at all from vents during extreme heat or cold
  • Loud banging, screeching, or grinding noises from the unit
  • Electrical burning smells, smoke, or scorch marks near equipment
  • Water leaking from the indoor unit onto ceilings, walls, or floors
  • System short cycling: turning on and off repeatedly without reaching the set temperature

Short cycling can point to thermostat problems, a failing capacitor, control board issues, or a refrigerant leak, and it typically worsens over time if not addressed. If you’re unsure whether your situation qualifies as an emergency, call us. A quick conversation lets us assess what you’re seeing and guide you toward the safest next step.

Our Emergency HVAC Process

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  • Limited
    Time
    Offer!
    Free Water Heater Replacement Quote + $500 Future Savings

    Featuredd

    Services include: Free in-home water heater replacement estimate, professional assessment of the existing unit and replacement options, review of available tank & tankless options, upfront pricing for recommended replacement options, and $500 in future savings on eligible additional services.

    Offer valid November 1 through December 31, 2026 at participating Service Experts locations in Georgia, North Carolina, South Carolina, Virginia, and West Virginia. Receive $500 in future savings on eligible additional services following a water heater replacement quote. Restrictions and exclusions may apply. Not valid on prior purchases or combined with other offers. Call 866-EXPERTS for eligibility and offer details. Nov 1, 2026 - Dec 31, 2026
  • Up to $1,500 Off New HVAC System

    Lease or purchase a new system for winter.

    Offer valid on qualifying new system installations. Discount varies based on system type: $800 off Single stage systems, mini-split system, boilers, $1,000 off 2 stage systems, or $1,500 off Modulating systems. Nov 4, 2026 - Dec 31, 2026
  • $79 Drain Cleaning

    Regularly $235. Reduce buildup on your pipes, Help avoid major plumbing repairs, Maintain a clean home.

    Offer not valid on prior purchases and may not be combined with other offers outside of membership discounts. Valid for one drain only. Must have an accessible ground level clean out. Nov 4, 2026 - Dec 31, 2026
  • No Payments Until 2027

    With any new HVAC, Indoor Air Quality, Water Heater or Water Treatment Service Experts Advantage Program lease agreement, we will make your payments for the first 6 months.

    Valid on new Advantage Program lease agreements from 7/1/26 to 12/31/26. Customer owes $0 for the first six months; regular monthly lease payments begin thereafter. Early termination during promotional period will result in charges for elapsed months. See your full Advantage Program Lease Agreement for complete terms and conditions, including total lease costs and payment schedule. Nov 3, 2026 - Dec 31, 2026
  • NEW HVAC SYSTEM as Low as $155/Month

    NO money down; Brand new, high-efficiency equipment; installation, regular preventative maintenance, all repairs (parts & labor), and air filters INCLUDED.

    Offer not valid on prior purchases and may not be combined with other offers. Advantage pricing applies to specific equipment. Call for details. Some exclusions apply. See the terms and conditions within the Service Experts Advantage Program Lease Agreement for additional information.
  • 10% Off Any Product or Service for Active Duty, Retired, and Veteran Military Personnel

    It’s our way of thanking you for your courage, dedication, and sacrifice to protect our freedom. All work is performed by licensed experts and backed by our Service Experts Guarantee.

    Offer not valid on prior purchases and may not be combined with other offers.
  • Members Exclusive: 15% Off Services and Repairs

    As a Maintenance+ member, you automatically receive discounts on all services and repairs.

    See your signed Maintenance+ Membership agreement for full terms and conditions.
  • Earn Up to $1,800 in Rebates When You Purchase or Lease a Qualifying Lennox System

    System rebate requires the purchase of a Lennox indoor unit, an outdoor unit and a qualifying thermostat. System add-ons do not qualify for an individual rebate and cannot be combined with individual offers. Rebate offer valid from 9/19/26 until 12/4/26 and must be installed by 12/11/26 and submit claims by 1/10/27. Rebate is paid in the form of a Lennox prepaid Mastercard.

    All rebate information found at https://www.lennox.com/residential/buyers-guide/offers-and-savings/promotions/. Equipment varies by Service Experts location, call your local Center for more details. Sep 19, 2026 - Dec 4, 2026
  • Member Exclusive: Extra $200 Off Installation When Upgraded to an Advantage Lease Program

    Receive an additional $200 off installation cost of new system lease

    Available to new and existing active Maintenance+ members. Customers who execute a qualifying lease agreement for a new HVAC, Indoor Air Quality, Water Heater, or Water Treatment system by December 31, 2026, and complete installation by January 7, 2027 will receive a $200 credit applied to the installation portion of the transaction. Offer cannot be combined with other installation credits unless expressly stated. Offer may be modified, suspended, or withdrawn as permitted by law. Nov 4, 2026 - Dec 31, 2026
  • Member Exclusive: $0 Diagnostic Fee with Paid Repair

    Waived diagnostic fee for Maintenance+ members. Valid for new and active members.

    The $0 fee applies only when recommended repair is completed and paid at time of service. Promotion valid for service visits for new and existing Maintenance+ members. See your signed Maintenance+ Membership agreement for full terms and conditions.
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