No hourly billing games. No mystery invoices. Just a licensed Mayo technician who tests the system, tells you what's actually wrong, and quotes one number — that's the whole pitch.
The short version of who shows up at your door.
We do one thing in Mayo: HVAC repair and installation, done right the first time. Every technician on staff is licensed, background-checked, and EPA 608 certified to handle refrigerant legally — there's no gray area on that.
A recurring story from new customers: a phone quote that didn't match the invoice. The number we say is the number you pay, and that's true whether it's a $150 capacitor or a full system.
Referrals are how we grow here, so cutting corners isn't worth the reputation hit. We say the cheap fix out loud, even when it costs us the bigger sale.

What we tell Mayo homeowners to watch for.
Three different causes, one diagnostic visit to tell them apart.
Noise on startup is a clue, not a death sentence for the unit.
Dirty coils, low charge, and leaky ducts all quietly drive up runtime before anything actually breaks.
Either pattern wears down components ahead of schedule.
A clogged condensate line backs up fast and can damage flooring before you notice a comfort issue.
Ductwork is the usual suspect here, not the unit.
A musty odor on startup points to moisture somewhere in the system.
Aging equipment tends to fail at the worst time — a proactive look can flag whether replacement planning makes sense.
A sharp electrical smell or a rotten-egg odor both call for shutting the system off and getting it looked at quickly, not wait and see.
Ice on the condenser in cooling season points to airflow or charge problems, not something to just wait out.
Sticky air despite a cool thermostat reading usually means the system isn't running long enough to pull moisture out.
The full scope of Mayo work we take on.
No-heat and no-cool situations jump the schedule, answered by an actual dispatcher, any hour.
The approach doesn't change based on the size of the job — test first, quote second, always.
Downtime costs businesses money, so commercial accounts get moved to the front of the line.
Beyond heating and cooling, we handle the air quality side too — purification, humidity, filtration.
Seasonal maintenance catches small issues before they become expensive ones, which is almost always the cheaper path.
Duct problems quietly waste money long before anyone notices, and we test and seal as part of a full evaluation.
A thermostat upgrade is one of the cheapest efficiency improvements available, and we check compatibility with your existing Mayo system first, not guesswork.
Heat pumps get their own diagnostic approach, not treated like a standard split system.
A real Manual J load calculation before recommending equipment size, not a square-footage guess, so the new Mayo system performs the way it's rated to.
Manometers and anemometers measure what's actually happening in the ductwork instead of guessing from symptoms on comfort complaints.
Rooftop equipment gets the same careful approach as anything else we service.

Four steps, no surprises.
Tell us what's happening — no phone tree to fight through.
Local staging means a fast arrival window, not a week-long wait.
Full testing happens before any price is quoted, and you approve the number before repairs start.
Same-visit completion is typical, covered in writing.
What doesn't change job to job.
Written quote before repairs begin, no hourly meter running, no surprise line items.
Local trucks mean fast arrival, not a multi-day wait.
Background-checked, licensed, covered by liability insurance — every tech, no subcontractors.
A repair that doesn't hold gets revisited and corrected at no extra cost, within the warranty window.
Common failure parts ride on every truck, which means most Mayo calls finish without a return trip.
Round-the-clock availability, answered live.
You see the actual readings — capacitor microfarads, pressure, amp draw — before a price gets quoted.
What you read is what happened.
Faster parts mean faster repairs.
No-heat and no-cool calls jump the schedule during extreme weather, not left for the next opening.
A documented history follows your equipment, visit to visit.
Nobody shows up who doesn't work directly for us.
You know who's coming, when, and what it costs before anyone walks in the door.
Consistent contact for repeat commercial customers.

If a repair we complete doesn't hold up, we come back and fix it at no additional cost, inside the warranty period we quote you upfront.
Written, not verbal
Unedited feedback from completed jobs.
Breaker kept tripping every time the AC kicked on. Found a shorted wire two other companies had missed on separate visits.
— R. Castellano, Mayo homeowner
Got a two-hour arrival window by text instead of the usual 'sometime today.' Tech showed up right in the window.
— D. Whitfield, Mayo homeowner
System was cycling on and off constantly. Turned out to be a thermostat wiring issue, not the compressor everyone assumed.
— P. Nakashima, Mayo property manager
Third company we've tried for our office building. First one to pull a service history instead of starting from scratch.
— M. Abernathy, Mayo office manager
Quoted a full system replacement by someone else. Actual problem was a $40 capacitor, fifteen minutes to fix.
— K. Delacroix, Mayo homeowner
Called about a strange smell near the furnace, they had someone here within the hour to make sure it was safe.
— T. Okonjo, Mayo homeowner
Bill had been climbing for months with no explanation. Dirty coil and a slow leak, both fixed same visit, bill dropped noticeably.
— A. Ferreira, Mayo homeowner
Rental unit AC died on a Friday. Tenant wasn't happy but it was running again before the weekend.
— G. Vasquez, landlord
Installed a smart thermostat and actually checked compatibility with our older system first instead of just plugging it in.
— H. Renaud, Mayo homeowner
Duct leak in the attic was wasting a huge chunk of our cooling. Sealed it properly, upstairs finally feels right.
— S. Ekwueme, Mayo homeowner
Noticed a musty smell every time the AC kicked on. Turned out to be mold building up on the evaporator coil from a drainage issue.
— W. Fitzsimmons, Mayo homeowner
Heat pump was stuck blowing cold air in heat mode. Diagnosed a stuck reversing valve in under twenty minutes.
— C. Odom, Mayo homeowner
Rooftop unit at our restaurant started making a grinding noise during the lunch rush. They had someone out within ninety minutes.
— F. Delacroix, Mayo restaurant owner
New AC install and the crew actually tested airflow before calling it finished, not just flipping the switch and leaving.
— J. Halloran, Mayo homeowner
Static pressure test found a real problem in ductwork we thought was fine. Fixed it and airflow improved noticeably upstairs.
— R. Nakagawa, Mayo homeowner
Called about an electrical smell near the unit, they told us to shut it off immediately and had someone out within the hour.
— P. Ibekwe, Mayo homeowner

What people want to know first.
Same-day is typical here, next-morning as the fallback.
A number in writing, before any work starts — no hourly billing.
No-heat, no-cool, electrical faults, gas odors — all get priority dispatch, day or night.
Licensing and insurance apply across the board.
Homes and businesses get the same approach.
Covered under our workmanship guarantee, we come back at no charge, within the warranty period.
We service whatever's already in your Mayo property.
The cost is known upfront and applies to the repair.
A seasonal plan is available with real perks.
Listed in the coverage section below — call to confirm your specific zip.
The emergency rate is disclosed before dispatch, no invoice surprises.
Available and discussed at the quote stage depending on scope.
Ductwork gets a look on most calls, deeper testing if warranted.
We walk through the cost math based on system age and the specific failure, decision is yours.
We try to keep continuity where scheduling allows, especially for maintenance members.
Compatibility gets checked first, older systems sometimes need a wiring adapter.
Leave the area, call your gas utility's emergency line first, then us once it's confirmed safe.
Yes, a written damage assessment and itemized invoice suitable for a claim.
Yes, reversing valve and defrost cycle diagnostics are part of our regular training, not an afterthought.
A full load calculation, equipment options across a few efficiency tiers, and a written labor warranty.
Weekends aren't automatically 'emergency' pricing here.
Commercial rooftop service is a regular part of our Mayo work.
Building-wide coordination is something we handle regularly.
The diagnostic fee is the only baseline charge, disclosed before scheduling, credited toward any repair.
Standard cards and checks are accepted, details confirmed when you book.
Yes, we handle manufacturer warranty registration as part of a new install for anything we install.
We sometimes run a reduced rate for first-time callers.
A typical repair, once diagnosed, takes under an hour start to finish.
Multi-property accounts are handled under one simplified setup.
All major residential and light-commercial brands sold in Mayo, SC, not just one manufacturer's lineup, not a single preferred vendor.
One fee covers the visit, nothing extra tacked on.
A free assessment is standard before any installation quote.
Coverage runs through Mayo and into nearby Mayo, SC zips — confirm yours when you call.
Trucks are staged around Mayo specifically, so response times hold up even during peak demand. Being just outside the map doesn't automatically rule you out.
Call +1-866-805-8548