Trusted HVAC Repair Services in Greater DFW
Need fast, reliable HVAC repair now? We diagnose the problem first and give clear options before any work. Our licensed, NATE-certified techs fix heat and AC issues the right way with no pressure. Serving the Greater DFW area, including Dallas, Frisco, and Carrollton. Proven local team with a 4.9 rating from 1,260 reviews. Contact us today to schedule service or ask a question.
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How customers feel about the bill, in their words.
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Experience top-quality HVAC services with Southern Comfort Mechanical. We deliver expertise and professionalism to ensure your comfort.

Expert HVAC services for reliable comfort with Southern Comfort Mechanical.

Southern Comfort Mechanical ensures top-notch HVAC maintenance to keep your systems running smoothly.

At Southern Comfort Mechanical, we ensure superior HVAC repair and maintenance with top-notch service.
Why Choose Us
Certified Expertise
Licensed and NATE certified technicians handle every repair
Transparent Pricing
Upfront estimates before work begins, no surprises
Top-Rated Service
4.9 rating from 1,260 reviews
Trusted Brands
Authorized Trane dealer and installer
Award-Winning Local Team
Honors from Nextdoor and Best of Denton County
What Our Customers Say
quality
“Prompt, knowledgeable and thorough. Identified the issue and fixed airflow.”
speed
“Sameday service. Quickly diagnosed and had parts on the truck.”
professionalism
“Very knowledgeable and fixed our issue quickly. Honest company we trust.”
An air conditioner running but not cooling usually points to blocked airflow, low refrigerant, or a control fault disrupting heat removal. The most common cause is restricted airflow from a dirty filter or coil, which makes the system run without dropping temperature. Refrigerant loss (from a leak) or a safety switch that stops the cold coil from working can also leave the fan blowing warm air. A quick technician check often finds one culprit rather than many; if air starts cool then turns weak or warm, the coil may be icing. Our team sees these patterns often while serving homes around Frisco, and a proper diagnostic tells you if it’s a simple cleaning, a sealed leak repair, or time to consider replacement after repeated issues.
Check these quick signals before calling:
- Dirty or collapsed air filter reducing airflow
- Outdoor unit blocked by lint or vegetation
- Ice on the indoor coil from low airflow or refrigerant loss
- Drain clog tripping a float switch that stops cooling
Turn the system off if you see ice on the coil to prevent compressor damage.
Updated: 2026-07-02
Need help in Frisco, TX? Call (469) 515-7987 or book online. “Fast efficient service.” — Dennis C.
An air conditioner that won’t turn on with the thermostat set to Cool usually points to a power interruption, a safety lockout, or a control signal fault. The most common cause is a tripped breaker or condensate safety switch after a drain clog or brief power surge. A common field find is a condensate float switch tripped by a clogged drain; the system stays off with no obvious error. We often see surge trips and drain lockouts in the North Texas homes we service near Coppell.
Check these quick items before calling:
- Confirm thermostat is on Cool, set below room temp, and replace batteries if used.
- Reset the AC/furnace breaker once; also check any light switch–style power switch at the indoor unit.
- Look for a full drain pan or wet area that may have triggered the float switch.
- Ensure the furnace/air handler door is fully closed and the filter isn’t severely clogged.
If nothing changes, avoid repeated resets to protect the compressor and schedule a diagnostic.
Updated: 2026-03-31
Need help in Coppell, TX? Call (469) 515-7987 or book online. We had a whole new system installed and while we did have a few hiccups afterward, they worked tirelessly until everything was resolved. — Krissy L.
An AC that runs but is not blowing cold air usually has an airflow blockage or a refrigerant problem preventing heat removal. The most common cause is a clogged filter or dirty indoor coil that restricts air across the evaporator; low refrigerant from a leak or a control issue can also stop cooling. Electrical faults, a stuck contactor, or a failing capacitor can keep the outdoor unit from doing its job. We resolve these problems frequently for homes around Argyle, and routine maintenance helps prevent most of them. Joining our Comfort Club provides bi-annual tune-ups that catch clogged coils and low refrigerant early.
Try these quick checks before you call:
- Replace a dirty filter and open closed supply vents.
- Confirm the thermostat is set to Cool and fan on Auto.
- Clear debris from the outdoor coil and verify the breaker or disconnect is on.
- If you see ice on the refrigerant lines, turn the system off to thaw, then schedule service.
Avoid running the system if it only blows warm air, as prolonged use can damage the compressor.
Updated: 2026-04-08
Need help in Argyle, TX? Call (469) 515-7987 or book online. "Repair was thorough and complete, leaving us with a perfectly cooled home." — Tom M.
Call us now for emergency HVAC repair. We offer prompt emergency service with same-day or next-day appointments in Carrollton and Frisco. Our certified tech will inspect the system, test electrical parts, verify refrigerant, and check safety controls. We service all makes and models. Trucks are fully stocked to fix refrigerant leaks, thermostat failures, electrical issues, and mechanical breakdowns on the first visit.
- Turn the system off.
- Check breaker and filter.
- Note error codes or noises.
Updated: 2025-12-28
Need help in Carrollton, TX? Call (469) 515-7987 or book online.
The average cost to fix a furnace depends on the failed part and labor time, and final pricing is confirmed after an on‑site diagnostic. Most repair bills come from the specific component that failed and how difficult it is to access and replace it. We see the same cost patterns in the North Texas homes we service.
- Common repair drivers: igniter or flame sensor issues, inducer or blower motor failures, control board faults, and wiring problems.
- Price factors: part availability, system age and warranty status, gas vs. electric design, and attic or closet accessibility.
- When to consider replacement: repeated major failures, safety-related cracks in the heat exchanger, or repairs approaching a significant share of system value.
- If you need emergency service, an advertised $199 dispatch fee may apply.
If you smell gas, turn the furnace off at the switch, leave the area, and schedule a professional diagnostic.
Updated: 2026-07-08
Need help in Carrollton, TX? Call (469) 515-7987 or book online. “Fast efficient service.” — Dennis C.
There isn’t one “average” AC repair cost. Pricing depends on the issue, parts needed, and labor time, which we confirm after a diagnostic with straightforward pricing before work begins. We commonly fix refrigerant leaks, thermostat malfunctions, electrical problems, and mechanical breakdowns. Our trucks are stocked to complete many repairs on the first visit. Comfort Club members get priority scheduling and discounts. Free estimates are available for AC repair when you schedule service. Service available in Carrollton, Flower Mound, Frisco, Coppell, and nearby.
Updated: 2025-12-28
Need help in Carrollton, TX? Call (469) 515-7987 or book online.
Emergency HVAC service pricing depends on the problem found and any parts required. A technician will diagnose your system on site and provide straightforward pricing before work begins. We offer same-day or next-day appointments in areas like Carrollton and Frisco. Free estimates are available for many repair services. Comfort Club members receive priority scheduling and exclusive discounts. We service all makes and keep our trucks fully stocked to finish many repairs on the first visit.
Updated: 2025-12-28 00:00:00
Need help in Carrollton, TX? Call (469) 515-7987 or book online.
Emergency HVAC repair cost varies by the problem and parts needed. Exact pricing depends on an on-site diagnostic, and your technician will confirm costs before work begins. We use straightforward pricing and can provide same-day or next-day service in Carrollton and Frisco. Comfort Club members receive priority scheduling and exclusive discounts. We service all makes and models, and stocked trucks help complete many fixes on the first visit.
Updated: 2025-12-28 00:00:00
Need help in Carrollton, TX? Call (469) 515-7987 or book online.
Most HVAC repairs are priced per job, not per hour. We use straightforward, flat-rate pricing after a diagnostic so you know the total before work starts. A technician will inspect, identify the issue, and confirm costs on site. Pricing varies by repair type (refrigerant leaks, electrical problems, blower/motor issues) and system condition. Comfort Club members get priority scheduling and discounts. We service all makes and models, with stocked trucks to complete many fixes on the first visit in Carrollton, Coppell, and Frisco.
Updated: 2025-12-28 00:00:00
Need help in Carrollton, TX? Call (469) 515-7987 or book online.
Still have questions?
Have questions or need service? Contact our team today to discuss your needs, request a quote, or schedule an appointment.
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