Rio Grande City · Starr County · Western Hidalgo County
HVAC Contractor in Rio Grande City, TX
Air conditioning repair, new AC and mini-split installs, tune-ups and deep cleaning from a local crew based in Rio Grande City. Call, describe what your system is doing, and get an honest answer on what it needs and when we can be there.
- Serving Rio Grande City since 2024
- 5.0★ from 41 Google reviews
- Same-day repairs & installs when the schedule allows
- Cash, cards & financing
- All AC & mini-split brands
Local HVAC company · founded July 2024
A small Rio Grande City HVAC company that answers its own phone
956 Multi Service is an HVAC contractor in Rio Grande City, TX. We keep homes and small businesses cool through a cooling season that starts in spring and runs deep into fall, when a dead capacitor or a clogged drain on a 100-degree afternoon is not an inconvenience but a safety problem for the people inside.
Most of our day is air conditioning: diagnosing warm air, washing out dust-packed condenser coils, replacing worn parts, and installing new central systems and ductless mini-splits. Because we are a multi-service crew, we also pour concrete pads, paint, and take on handyman and home improvement work, so one phone number covers the whole property.
Customers tell us in their reviews what matters to them: technicians who show up when they said they would, explain the whole process, leave the install clean and charge a fair price. That is the standard we hold every visit to, from a single mini-split cleaning to a full system change-out.
956 Multi Service was registered as a local HVAC company in Rio Grande City in July 2024, serving all of Starr County. Our Google profile has 41 reviews, every one five stars, and 92 photos of our work. Our hours are Monday–Saturday 8 AM–7 PM; Sunday closed; outside them, leave a message with your town and the problem.
44 services, one local crew
Air conditioning, heating and mini-split service in Rio Grande City, TX
From AC repair and maintenance to new installs, heating, ductwork and commercial refrigeration, every service below has its own page explaining how we do it and what affects the cost.
Most calls for HVAC services in Rio Grande City fall into a few groups: HVAC repair in Rio Grande City for a no-cool call, from AC capacitor replacement to refrigerant leak repair; AC installation in Rio Grande City and central AC replacement for new equipment sized for Starr County heat; local HVAC maintenance services and an HVAC maintenance plan for coils and condensate drains; and heat pump installation, ductwork repair in Rio Grande City, thermostats and indoor air quality services for comfort problems. Central air needs ductwork; ductless mini-split installation does not, which suits block homes and add-ons. For emergency HVAC service in Rio Grande City, emergency air conditioning repair explains how no-cool calls are triaged across residential and commercial HVAC services, while the HVAC installation cost guide and Rio Grande City AC replacement guide cover what drives the price.
AC Repair
AC not cooling or the fan won't spin? AC repair in Rio Grande City with capacitors and motors on the truck.
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AC Installation
AC installation sized for Rio Grande City summers: central, package or mini-split, with the old unit hauled off.
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AC Maintenance
AC maintenance against Rio Grande City heat and caliche dust: coil wash, drain flush, electrical and refrigerant checks.
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Ductless Mini-Splits
Mini-split installs, repairs and deep cleaning for Rio Grande City homes, additions and shops, DIY units included.
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Heating Services
Heating services in Rio Grande City for heat strips, heat pumps and gas furnaces, checked before cold snaps.
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Ductwork
Hot rooms and high bills? Ductwork repair for Rio Grande City attic and mobile-home ducts: reseal, reroute or replace.
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Indoor Air Quality
Indoor air quality fixed at the HVAC system: filters, purifiers, UV lights and dehumidifiers for Starr County dust.
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Smart Thermostats
Smart thermostat installation in Rio Grande City for Wi-Fi and programmable models, C-wire runs and repairs.
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Attic Insulation
Blown-in attic insulation, radiant barrier and attic fans that cut the cooling load in hot Starr County attics.
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Commercial HVAC
Commercial HVAC for Rio Grande City shops, offices, churches and restaurants: AC repair, rooftop units, refrigeration.
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Concrete Work
Concrete contractor for AC pads, patios, walks and small slabs in Rio Grande City, poured by our AC crew.
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House Painting
House painting inside and out in Starr County, drywall patching included, with paint picked for South Texas sun.
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Handyman Services
Handyman services around Rio Grande City: doors, drywall, fixtures, fences and whole fix-it lists, done by one crew.
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Home Construction & Remodeling
Home construction, room additions and remodeling in Starr County, with the HVAC planned in-house from day one.
Learn moreWhy Starr County homeowners call 956 Multi Service
The person who answers knows HVAC
Describe the noise, the blinking light or the warm air on the phone and you get a straight read on what is likely wrong and how urgent it is.
Same-day when the schedule allows
Repairs and even new installs are often finished the day you call. When today is full, you hear that up front, with a real time slot.
Options explained before work starts
You see the failed part, hear the repair and replacement choices, and decide. No surprise add-ons once the panel is off.
Mini-split know-how
Installs, repairs and deep cleans on ductless systems, including DIY units bought online, make up a big share of our work.
One crew for the whole property
The same people who fix the AC can pour the condenser pad, patch the drywall around a line set or paint the room afterward.
Clean, careful installs
Level pads, sealed wall penetrations, neat line-set covers and a swept work area are part of the job, not an upgrade.
The HVAC diagnostic process on a no-cool call
Warm air from one vent is a symptom, not a diagnosis. Same-day AC repair in Rio Grande City or a scheduled visit, the steps are the same:
- Confirm the symptom: thermostat reading, when it started, recent rain or repairs, who is home.
- Inspect: filter, airflow, condensate drain, wiring, coil and attic ducts.
- Test, not guess: capacitor, contactor, voltage, amps, temperature split and refrigerant pressures.
- Find the leak first: low refrigerant means a leak, so a leak search or nitrogen pressure test comes before any recharge.
- Show you the finding: the failed part or reading; safety items separate from upgrades.
- Lay out the options: repair, replacement or maintenance, priced out before work starts.
- Verify and clean up: cold air, a draining condensate line, a clean work area.
Repair or replace? Questions to settle first
Age alone does not decide it; air conditioner lifespan here depends on hours and upkeep. Ask:
- What failed, and has the same part failed before?
- Does it run on R-22, which is no longer produced in the US?
- What does each option include, from duct and electrical work to haul-off of the old unit?
- What manufacturer warranty covers each option, and what voids it?
Our page on AC replacement in Rio Grande City covers the rest, including the AC installation timeline.
What changes HVAC repair cost and AC replacement cost
HVAC replacement cost and air conditioning installation cost swing with the scope. Ask for these on your estimate:
- Size and type: tonnage; central air conditioner, heat pump or mini-split.
- Efficiency: the SEER2 rating proposed.
- Refrigerant: R-22, R-410A or the newer R-454B and R-32 systems.
- Access and site work: attics, crawlspaces, disconnects, pads, drains, line sets.
- Timing and damage: after-hours calls, flood or surge damage, permits and disposal.
We take Cash, Visa, MasterCard, American Express, Discover, and financing is available on new systems; compare the rate, payment schedule and total repayment before signing. New equipment carries manufacturer warranty coverage. The federal 25C tax credit ended for equipment installed after December 31, 2025.
Built for the western Valley
Heating and cooling for Rio Grande City heat, caliche dust and river humidity
Rio Grande City sits in the semi-arid western end of the Valley, where summer afternoons routinely push toward 100°F and the AC runs from spring well into fall. National Weather Service records put average summer highs around 99°F, with about 22 inches of rain a year and September the wettest month, and heat-index readings across the Rio Grande Valley have topped 115°F. Equipment here does not wear out from age as much as from hours. Capacitors swell, contactors pit, and compressors that would last for years up north work through more cooling hours in a single season. In the attic, temperatures climb far above the outdoor reading, so attic heat and duct leakage can make a working system feel weak.
The land adds its own problems. Wind carries fine caliche dust and mesquite debris off the brush and dirt roads straight into condenser coils, so an outdoor unit can lose a big share of its airflow without looking dirty from a distance. A proper coil wash, from the inside out, is often what brings cold air back. Near the river and Arroyo Los Olmos, humid air keeps condensate drains growing slime and blower wheels growing mold, which is why mini-split deep cleaning is such a big part of our work.
Storms matter too. Heavy rain like Hurricane Hanna in July 2020 flooded parts of Starr and Hidalgo counties, and summer lightning trips breakers and fries control boards, whether the power comes from AEP Texas or Magic Valley Electric Cooperative. Winters are short, but the February 2021 freeze showed how fast heat strips and heat pumps get pushed when a hard cold front arrives. We plan maintenance around that calendar:
- Late winter to spring: coil washes, drain flushes and electrical checks before the first heat wave.
- Summer: no-cool repairs, refrigerant leak diagnosis and same-day replacements when a system is past saving.
- Fall: heat strip checks and heat pump service in Rio Grande City homes before the first cold front, plus a second mini-split cleaning for units that run hard.
- After storms: inspections of flooded or surge-hit equipment before it is restarted.
After heavy rain or flooding: protect the system and the claim
Flood exposure and water damage hit the outdoor unit and disconnect first, and electrical damage is not always visible. Low ground near the Rio Grande, Arroyo Los Olmos, US-83 and FM 755 floods first. Flood-damaged HVAC safety and inspection come down to four steps:
- Keep the system off if water reached the outdoor unit or the disconnect.
- Photograph the equipment, serial plate, waterline and corrosion before cleanup.
- Call your insurer before damaged equipment is removed; the policy decides coverage, not the contractor.
- Have it checked before it runs again.
See storm and power surge AC repair and the guide to HVAC insurance claim questions.
No-cool checklist
AC quit? What should you do in the first 30 minutes?
A warm-air vent during a Rio Grande City heat wave can turn dangerous for the people inside faster than most expect. These steps keep everyone safe, rule out the simple causes and make the service call quicker. Call 911 for confusion, fainting or other signs of heat stroke.
Read the full heat-wave guide- Step 1
Protect people first
Move kids, older relatives, pets and anyone with a health condition to the coolest room. Close blinds on sunny windows and skip the oven.
- Step 2
Check the thermostat
Mode on Cool, setting a few degrees below the room, fresh batteries if the screen is blank.
- Step 3
Look at the filter
A filter packed with dust can freeze the coil and choke airflow. Swap it if it is gray and stiff.
- Step 4
Reset a tripped breaker once
If it trips again, leave it off. Repeated resets can burn out a compressor or wiring.
- Step 5
Watch for water, ice and smells
Water around the indoor unit, ice on the copper lines, a hissing sound or a burning smell means shut the system off. Do not touch the refrigerant lines.
- Step 6
Look, but leave the panels on
Check whether the outdoor fan is spinning, then write down error codes, sounds and when it started. Do not remove panels or spray the unit with water.
Air conditioner failure signs and the safe first step
Match what you see to the likely cause, so you know what to switch off and how fast to call. The condensate drain is the pipe that carries water pulled out of your indoor air.
| Likely cause | Warning signs | Safe first step | How urgent | Technician checks |
|---|---|---|---|---|
| Clogged condensate drain | Water at the indoor unit, a ceiling stain, a dripping mini-split | Turn cooling off and catch the water | Same day if water reaches ceilings or wiring | Condensate drain repair: line, float switch, pan, pump |
| Failed capacitor | Outdoor unit hums but the fan will not spin; air conditioner not blowing cold air | Turn the system off; leave the panel closed | Same day in summer heat | Capacitor, contactor, motor amps |
| Refrigerant leak | Ice on the lines, cooling weaker each day, hissing | Run fan only to melt ice; never add refrigerant yourself | Soon; same day with vulnerable people inside | Pressures, temperature split, leak search |
| Electrical damage or moisture | Breaker trips again, burning smell, wet disconnect after rain | Leave the breaker off; stay clear of wet equipment | Call right away, before restarting | Disconnect, wiring, controls, corrosion |
| Duct leakage or weak airflow | Hot rooms, weak vents, high electric bills | Replace a dirty filter; open all vents | Book a visit | Filter, blower, attic ductwork |
What to photograph before the technician arrives
Photos help the technician bring the right parts:
- The thermostat screen: setting, room temperature and mode
- The model and serial plate on the outdoor unit
- Any error code, water stain, ice or corrosion
HVAC service across Starr County and western Hidalgo County
We are based in Rio Grande City and spend most days within a short drive along US-83, from Roma and Escobares on the west to La Grulla, Sullivan City and La Joya on the east. FM 755 runs north toward San Isidro, FM 3167 loops the city, and Zapata and the Falcon Lake communities are covered by appointment. Each town below has its own page with the problems we see there most.
Map of 956 Multi Service, Rio Grande City, TX 78582. Directions to 956 Multi Service are on our Google Business Profile.
956 Multi Service
Rio Grande City, TX 78582 · service-area business
Monday–Saturday 8 AM–7 PM · Sunday closed
(213) 423-7827What Rio Grande City customers say on Google
5.0 out of 5 from 41 Google reviews
“Very great customer service! Talked to them over the phone to explain my A/C situation I was having, and they knew what the problem was right away! Came to fix the problem in a timely manner! Recently I purchased a new unit and they went for an installation the same day! Highly recommended!”
“Have used them twice for mini split maintenance and cleaning. Super communicative and does good work. They’re my go-to people for mini split services now 👍🏼”
“They've installed two different units for me. Fast service, clean installation, and easy to work with. Great job guys!”
“A top-notch service for mini-split cleaning! They truly take their time to leave each unit spotless. I've been a customer for quite some time, and they consistently exceed my expectations. My air conditioners always work much better after their visit. Completely satisfied!”
“Both gentlemen arrived punctually and were exceptionally well mannered and explained the whole process. They diligently completed the service I needed and delivered an exceptional job! I will definitely reach out to them again for any future work I may need. Highly recommend!”
Response from the owner: Thank you 💯
“Excellent, fast and reliable service. Thank you for fixing our mini split issues quickly and helping set up the coolbot for the refrigerator room.”
Straight answers from our HVAC guides
AC Stopped Working in a Heat Wave? What to Do First
Step-by-step checks when your AC dies during a Starr County heat wave, how to keep family safe, and when to call for emergency repair.
Mini-Split Smells Musty? Why It Happens and How to Fix It
That sour smell from a mini-split is usually mold on the blower wheel and coil. Why it happens in Valley humidity and how deep cleaning works.
Dirty AC Condenser Coil? Caliche Dust in Starr County
Wind-blown caliche, mesquite debris and brush choke outdoor coils in Starr County. How often to wash them and what it saves.
What do people ask before booking an HVAC visit in Rio Grande City?
Which towns around Rio Grande City does 956 Multi Service cover?
Our home turf is Starr County: Rio Grande City, Roma, Escobares, La Grulla, Garceño and the communities in between such as Las Lomas, La Puerta, El Chaparral, Alto Bonito and Mikes. We also run regular calls east along US-83 into western Hidalgo County, from Sullivan City and La Joya to Palmview, Mission, McAllen and Edinburg. Farther areas like Zapata County, Jim Hogg and Brooks counties and the mid-Valley are covered by scheduled appointment.
Can you install a new AC or mini-split the same day in Rio Grande City?
Yes, often. Several customers have had a new central unit or mini-split installed the same day they bought it. It depends on whether the right equipment is on hand, whether the electrical disconnect and breaker are ready, and how the day’s calls are stacked. Call early in the day and we will tell you honestly whether today is realistic or give you the first open slot.
Do you speak Spanish on service calls?
A lot of our customers in Starr County are more comfortable in Spanish, and several of our Google reviews were written in Spanish. When you call, tell us which language you prefer and we will make sure the diagnosis, the options and the price are explained in a way that is clear to you before any work starts.
Do you offer financing on new AC systems?
Yes, financing is available for new AC, heat pump and mini-split systems, and we also take cash and major cards. Terms come from the lender and depend on your application, so we go over the available options with you at the estimate. Compare the monthly payment, the total cost and any promotional period before you sign anything.
What should I do first when my AC stops cooling in the summer heat?
Move children, older adults, pets and anyone with a medical condition to the coolest room or another cool place. Check that the thermostat is set to Cool and below room temperature, and that the filter is not clogged. If the breaker has tripped, reset it once only. If it trips again, the unit is leaking water, or you smell burning, shut the system off and call us. Call 911 for signs of heat stroke.
Do you work on mini-splits you did not install, including DIY units?
Yes. We repair, clean and service ductless mini-splits from most brands, including DIY units such as Mr. Cool that homeowners installed themselves. We also handle manufacturer warranty checks and warranty repairs. If a DIY install has line-set or vacuum problems, we explain what we found and what it takes to put it right.
Does Texas require HVAC contractors to hold a TDLR license?
Yes. The Texas Department of Licensing and Regulation licenses air conditioning and refrigeration contractors, and anyone who handles refrigerant also needs EPA Section 608 certification. Before you hire any licensed HVAC contractor, search the name or license number on the TDLR website, check that the business name and city match the company you called, and ask about insurance.
Is it safe to operate an HVAC system after flood exposure?
No. Keep it off until a qualified technician has checked it. Floodwater can soak the outdoor disconnect, wiring, control board and an air handler in a garage or closet, and the damage is not always visible. In Starr County, low ground near the Rio Grande and Arroyo Los Olmos tends to flood first. Photograph the equipment and the waterline for your insurer, then call before anyone resets the breaker.
Have a different question? Call and ask the crew.
Call (213) 423-7827