Rooftop & Packaged Units
The most common commercial equipment in East Texas and the most commonly neglected, because it sits where nobody walks past it.
- Compressors & Contactors
- Condenser Fan Motors
- Coil & Drain Faults
- Economizer Problems
Rooftop & Split Systems — 24/7 Response
Commercial AC Repair
in Longview, TX
When commercial cooling fails in an East Texas August, the question is rarely what broke. It is how fast the building can trade again and whether the repair is worth making on equipment that may be near the end of its life anyway. We answer both, in writing, before we start.
- Rooftop, Packaged & Split Systems
- 24/7 Emergency Response
- Written Price Before Work
- Honest Repair vs Replace Advice
Napps Commercial HVAC — Longview & East Texas since 1957
What We Repair
Commercial Cooling Faults We Attend
Offices, retail, restaurants, churches and light industrial. Most commercial cooling failures fall into a handful of categories, and most of them announced themselves first.
Split Systems
Commercial split equipment in smaller offices, suites and retail units, including the ones fitted years ago by whoever was cheapest.
- Refrigerant Leaks
- Coil Freezing
- Blower & Airflow Faults
- Control Wiring
Electrical & Controls
Contactors, capacitors, transformers, thermostats and building controls. A large share of no-cooling calls never involve refrigerant at all.
- Contactors & Capacitors
- Control Transformers
- Thermostat & Sensor Faults
- Loose Connections
Condensate & Water Damage
Blocked drains and overflowing pans, cleared and traced back to why they blocked rather than simply flushed.
- Drain & Trap Clearing
- Overflow Switch Testing
- Pan Inspection
- Cause Identified
Capacity & Performance Loss
Systems that still run but no longer hold setpoint. The gradual failures, which are the ones still worth catching.
- Charge Verification
- Coil Condition
- Airflow & Static Pressure
- Written Findings
Emergency Response
Where a failure has stopped trading or put stock at risk, the call is prioritised and the line is answered by a person.
- 24/7 Live Answer
- Trading-Stopped Priority
- Temporary Cooling Options
- Price Agreed First
Diagnosis
How We Approach a Commercial Failure
The fastest route back to trading is not always the most technically satisfying repair, and pretending otherwise costs businesses money.
Restore trading first, then decide properly
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On a commercial building the cost of being closed usually exceeds the cost of almost any repair. That means the right sequence is frequently to get the space usable today with a sound temporary measure, then have the proper conversation about permanent repair or replacement with the pressure off. Contractors who insist on the ideal fix immediately are optimising for the equipment rather than for your business.
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Why the same faults recur on East Texas rooftops
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Long humid cooling seasons, hot roof surfaces and equipment nobody visits produce a very consistent failure list: loaded condenser coils, blocked condensate drains, worn contactors, tired capacitors and seized economizer dampers. When we repair one of these we tell you which of the others we found on the way, because they are almost always present together and attending them in one visit is far cheaper than four separate call-outs.
Packaged Units →
The repair-or-replace arithmetic, with real numbers
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A compressor on a fourteen-year-old unit running obsolete refrigerant is rarely worth replacing, but that is a conclusion, not a rule, and it depends on your budget cycle and how long you hold the building. We give you the repair price, an honest estimate of what else is likely to need attention within two years, and the replacement figure. Then you decide with arithmetic in front of you.
Commercial AC Replacement →
When the equipment is not actually the problem
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Persistent complaints in one part of a building are frequently airflow, duct leakage or control configuration rather than capacity. This matters because replacing a unit does not fix any of those, and businesses spend serious money discovering that. We test static pressure and airflow before recommending equipment, which occasionally means talking ourselves out of a larger sale.
Ductwork Services →Common Commercial Cooling Symptoms
Indicative only — diagnosis confirms it.
| Symptom | Frequent Cause | Typical Urgency |
|---|---|---|
| Unit runs, building will not cool | Loaded condenser coil or low charge | Days — worsening |
| No operation at all | Contactor, capacitor or control transformer | Immediate |
| Breaker trips on hot afternoons | High head pressure, failing fan motor | Immediate |
| Water staining below unit | Blocked condensate drain | Urgent — building damage |
| Cold air, weak airflow | Frozen coil or blower fault | Urgent — shut down first |
| High bills, adequate cooling | Seized economizer, controls, coil condition | Planned |
📅 Call 903-758-6482
Or call 903-758-6482 — 24/7
How It Works
How a Commercial Repair Call Runs
Answered by a person, diagnosed on site, priced before work.
1
Call Answered and Prioritised
A closed dining room or a building at risk goes ahead of routine work. Any hour, including weekends.
2
Diagnosis on the Equipment
Electrical, refrigerant, airflow and controls checked properly rather than the first plausible cause replaced.
3
Price Agreed Before Repair
What it costs and what we recommend, including the replacement figure where that is the honest advice.
4
Repaired and Verified
Performance confirmed, and everything else we noticed on the unit written up for your planning.
Do Not Wait
Commercial Symptoms That Should Not Be Deferred
Some of these damage the building rather than the equipment.
Water staining or dripping below a rooftop unit
The pan is overflowing. Every day it continues adds ceiling, insulation and possibly electrical damage to a job that started as a blocked drain.
Ice on refrigerant lines or a frozen coil
Shut the equipment down and call. Running a frozen system risks liquid refrigerant reaching the compressor, which converts a repair into a replacement.
A breaker that trips and gets reset repeatedly
The breaker is doing its job. Resetting it repeatedly is how a motor fault becomes an electrical fire.
Burning smell from the unit or supply air
Motor or wiring overheating. Isolate the equipment and call rather than waiting to see if it clears.
Setpoint no longer reached on hot afternoons
Gradual capacity loss that will complete itself on the hottest day of the year, which is the most expensive day to lose it.
New grinding, squealing or rattling
Bearings and belts announce themselves. Attending the announcement costs a service call.
What We Check on Every Commercial Repair
Electrical, contactors and capacitors
The most frequent cause of a commercial unit that will not start, and the cheapest to correct.
Coil condition and refrigerant charge
Measured rather than estimated. Adding refrigerant without finding the leak is not a repair.
Condensate drain, trap and overflow switch
Cleared and tested, because this is the fault that damages your building.
Airflow, filters and static pressure
Establishes whether the complaint is really about capacity at all before anybody discusses equipment.
Why Napps?
Why Businesses Call Napps for Commercial AC Repair
Fast, licensed, and honest about what your equipment is worth.
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24/7 Answered by a Person Commercial failures do not respect business hours, and neither does our phone line.
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Written Price Before Work Starts Diagnosis first, price agreed second, work third. No open-ended invoices.
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Straight Repair vs Replace Advice Where a repair is not worth making we say so and give you the replacement number, even though the repair is the easier sale.
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Licensed & Insured — TACLA 72668C Texas licensed HVAC contractor, working on commercial equipment daily since 1957.
TACLA 72668C
NATE Certified
Bryant Factory Authorized
ACCA Member
Since 1957
65+
Years Serving East TX
24/7
Emergency Availability
★ 4.8
From 229 Google Reviews
2
TX Licences — HVAC & Plumbing
📅 Call 903-758-6482
Or call 903-758-6482 — available 24/7
What Longview Says
Real Reviews from Real Napps Customers
4.8 out of 5 · 229 Google reviews
These come straight from our Google Business Profile — unedited, and updated automatically as new reviews come in.
Common Questions
Commercial AC Repair Questions
What East Texas businesses ask when the cooling has stopped.
How fast can you get to a commercial AC failure in Longview?
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Our line is answered by a person at any hour and commercial failures where trading has stopped go ahead of routine work. We dispatch from Longview and serve East Texas from here, so response time is a matter of driving distance rather than waiting on a contractor based in another city.
How much does commercial AC repair cost?
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It depends on the equipment, the actual fault and how the unit is accessed, so we diagnose on site and agree the price with you before starting. Where we believe the repair is not a sensible spend on that unit, we will tell you and give you the replacement figure alongside it rather than quietly taking the repair.
Should I repair or replace a commercial rooftop unit?
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Under about ten years with a single component failure, repair is usually right. Past twelve to fifteen years, particularly with a compressor failure or obsolete refrigerant, replacement usually is. Between those, it is arithmetic rather than a rule, and we give you the repair cost, the likely two-year spend and the replacement price so you can do that arithmetic properly.
Can you provide temporary cooling while a unit is repaired or replaced?
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Where the building genuinely cannot trade without cooling, we will discuss temporary options as part of the plan. For most commercial customers the useful conversation is about restoring usable conditions today and doing the permanent work on a schedule that suits the business.
Do you work on equipment another contractor installed?
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Routinely. Most of the commercial equipment we service was fitted by somebody else. We assess its actual condition and tell you what we find, which is more useful than inheriting the previous contractor assumptions about it.
Our AC works but the building is still uncomfortable. What is that?
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Frequently airflow, duct leakage or controls rather than the equipment. That distinction is worth establishing before anybody quotes a new unit, because replacing capacity does not fix a distribution problem. We test rather than assume.
Replacement, rooftop units and the wider commercial offering.
Commercial Cooling Down? Call 903-758-6482.
Answered by a person at any hour, diagnosed on site, priced before we start.
Get In Touch
Request Commercial AC Repair
Tell us the equipment type and what the building is doing. If trading has stopped, call rather than waiting on a form.
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24/7 Emergency Line 903-758-6482
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Office Location 1003 West Cotton St., Longview, TX 75604
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Emergency Service Available 24 hours a day, 7 days a week
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Financing Available Financing available where replacement is the better option