Commercial HVAC Repair in Richmond, TX
Temper Mechanical repairs commercial heating and air conditioning systems for businesses in Richmond and across Fort Bend County.
We work on rooftop units, split systems and building controls for restaurants, medical offices, retail stores, offices, warehouses, schools and churches. When cooling fails, we diagnose the full system, give your decision maker a written report with photos and priced options, and schedule the work around your business hours.
- Licensed by TDLR, [TACLA #]
- NATE certified technicians
- Texas HUB and MBE certified
- $9.1 million in commercial mechanical projects since 2023
- Site specific safety plans on every job
- Local shop at 6115 FM 762, Richmond
Message Us Now for any Commercial HVAC needs
Your Building Lost Cooling. What to Do in the First 30 Minutes
A few minutes of fact gathering gets your technician to the right unit with the right parts, often on the first trip.
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Check the thermostat or building controls.
Make sure the system is in occupied mode and that no schedule, holiday setting or alarm has shut it down.
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Check the breakers.
Look at the electrical panel for tripped breakers.
Don’t send staff onto the roof to reset equipment unless they’re trained and authorized to be up there. -
Note which areas are affected.
One warm zone usually means one unit. The whole building going warm points to power, controls or several failures at once. Tell us which it is.
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Look for water.
Stained ceiling tiles or water near the air handler mean a drain has backed up.
If water is near electrical equipment, shut the unit off. -
Get the unit details.
Take a photo of the nameplate showing the brand, model, serial number and tonnage, if you can do it safely.
Have roof access, keys and an on site contact ready.
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Protect what can’t get hot.
Move heat sensitive stock, medication or electronics to a cooler room, and keep exterior doors closed.
Then call (346) 485-8142 and share what you found.
Commercial HVAC Equipment We Repair
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Rooftop packaged units, gas/electric and heat pump
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Split systems and condensing units
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Ductless and multi zone systems
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Kitchen make up air units and exhaust fans
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Economizers and fresh air controls
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Thermostats, zone controls and building automation
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Gas heating sections, burners and ignition systems
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We repair all major commercial brands.
We’re a Trane dealer , and if a part has to be ordered, we tell you how long it will take and what we can do in the meantime.
The Commercial HVAC Problems We Fix Most in Fort Bend County
| Problem | What your staff notice | What we do |
|---|---|---|
| Failed capacitor or contactor | One unit stops cooling, or the outdoor fan won’t run | Replace the part, then test the motors it protects |
| Clogged condensate drain | Stained ceiling tiles, water near the unit, unit shuts off | Clear and flush the drain, check the pan and the safety switch |
| Broken belt or failed blower | Unit runs but no air comes from the vents | Replace the belt or motor, check pulley alignment |
| Economizer stuck open | Building feels sticky and humid even when cool | Repair the damper, actuator or sensor, recalibrate the controls |
| Dirty coils | Long run times, high power bills, warm afternoons | Clean the coils, with a degreaser for kitchen grease |
| Refrigerant leak | Warm air, ice on the lines, weaker cooling each week | Locate the leak, repair it, recharge to the manufacturer’s spec |
| Gas heat failure | No heat on the first cold morning, unit locks out | Repair ignition and flame safety, inspect the heat exchanger for cracks |
| Controls or communication fault | Units run all night, or won’t start in the morning | Find the failed sensor, board or wiring, reset the schedules |
| Storm or surge damage | Several units fail after a storm or power outage | Test boards, contactors and compressors before restarting |
Why Commercial Systems Wear Out Faster in Richmond
Heat and humidity cut equipment life.
A rooftop unit with good maintenance usually lasts 15 to 20 years. In hot, humid Gulf Coast conditions with long run seasons, many last closer to 10 to 14 years. Here, summers stay above 95 degrees, and most commercial systems cool from spring into late fall.
Rooftops run hotter than the street.
A flat commercial roof in July is far hotter than the air temperature, and that heat wears down capacitors, contactors and motors first.
Humidity is a comfort problem, not just a temperature one.
A system that cools without removing enough moisture leaves the building clammy, fogs glass doors and can lead to mold above ceiling tiles. Economizers that stick open make it worse.
Storm season is long.
Hurricane season runs from June through November. Loose panels, unsecured curbs and power surges cause failures that show up days later.
Kitchen grease and dust load the coils.
Restaurant units pull in grease, and warehouse units pull in dust. Both cut airflow and push equipment harder.
Shifting clay soil affects ground mounted units.
Fort Bend County sits on Beaumont Clay, which swells and shrinks with rain and drought. Condensers on ground pads can tilt over time, which strains refrigerant lines and drain slope.
Commercial HVAC Repair Built Around Your Business
Restaurants.
Kitchen heat, make up air and exhaust have to stay in balance, or the dining room gets hot and doors become hard to open. We schedule repairs before service starts or after close.
Medical, dental and clinical spaces.
Patients, staff and equipment need steady temperature and humidity. We plan around appointment schedules and follow facility protocols.
Retail stores.
Hot stores lose customers, and some stock can’t take the heat. We work early or after hours where possible.
Offices and multi tenant buildings.
One failing unit can mean a dozen tenant complaints.
Warehouses and industrial sites.
Large open spaces, dust and process heat put heavy loads on equipment. We follow your site safety plan and also handle equipment repair and relocation.
Schools, churches and event spaces.
Buildings that fill up at set times need cooling ready before people arrive. We schedule around services, classes and events.
How a Commercial Repair Call Works
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Intake.
We take the unit details, the site address, roof access instructions, the on site contact and any PO or work order number.
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Site check in.
Our technician follows your safety and access rules and checks in with your contact on arrival.
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Full diagnosis.
We test electrical components, refrigerant pressures, airflow, drains, gas heat and controls. We don’t stop at the first failed part, because it’s often a symptom of another problem.
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Written report and options.
You get photos, findings and priced repair options. Nothing starts until your authorized contact approves it.
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Repair on your schedule.
We complete the work during the visit when parts are on the truck. Larger repairs are scheduled before opening, after close or on weekends.
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Test and document.
We confirm the unit is cooling and draining properly, then send a service record for your files, your landlord or your insurer.
What License Does a Commercial HVAC Contractor Need in Texas?
Texas licenses air conditioning contractors through TDLR in two classes.
A Class B license covers individual units up to 25 tons of cooling and 1.5 million BTU per hour of heating.
A Class A license has no size limit and is required for larger rooftop units, chillers and other large equipment.
Before you hire anyone for commercial work, ask for their TDLR license number, confirm it’s active on the TDLR website, and make sure the license class covers the size of your equipment.
Temper Mechanical’s license is [TACLA #]. See our checklist for choosing an HVAC contractor.
Repair or Replace a Rooftop Unit?
Repair usually makes sense when the unit is under about 12 years old, the failure is a single component and the repair costs well under half the price of a new unit.
Start planning a replacement when:
- the compressor fails on a unit older than 12 years
- the gas heat exchanger is cracked, which is a carbon monoxide risk
- the unit runs on R-22, which is no longer produced
- you’re paying for repairs on the same unit every season
- the building’s use has changed and the unit can’t keep up
Replacing a rooftop unit means sizing, a crane, curb adapters and permits. Planning ahead avoids emergency pricing and days of downtime.
We give you repair and replacement numbers side by side, and our project team handles turnkey commercial installation from design to start up.
Existing R-410A equipment can still be repaired and recharged. New commercial equipment now uses lower impact refrigerants such as R-454B, so refrigerant repairs on older units will cost more over time.
Call (346) 485-8142 right away if:
- the building is too hot to stay open, or staff and customers are at risk
- a server room, pharmacy or medication storage area is heating up
- water is coming through ceiling tiles near electrical equipment
- you smell gas or burning near a unit
(evacuate the area first if you smell gas) - several units failed at the same time after a storm or power outage
Prevent the Next Breakdown
Most commercial breakdowns start as something small, like a weak capacitor, a slipping belt, a dirty coil or a slow drain. Our maintenance programs schedule inspections and service so these problems get caught early, and the visits are planned around your hours.
Every visit is documented, so you have a record for owners, auditors and warranty claims.
Learn about our commercial maintenance management programs.Recent Commercial Mechanical Projects
| Project | Type | Value |
|---|---|---|
| Clear Choice Micro Hospital | Medical | $3,265,000 |
| Holiday Inn Galveston Beach Resort | Hospitality | $1,650,000 |
| Long Point Business Center | Commercial | $1,220,270 |
| Fogo de Chão | Restaurant | $954,411 |
| Ashley Furniture (Worth & Co) | Retail | $745,777 |
| University of Houston | Education | $592,100 |
| Rain Carbon | Industrial | $480,000 |
| Texas Southern University | Education | $280,000 |
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Total:$9,187,558across 8 projects. See more of our work. | ||
Areas We Serve
We provide commercial HVAC service in Richmond, Rosenberg, Sugar Land, Katy, Cinco Ranch, Houston and throughout Fort Bend County. That includes businesses along Interstate 69, the Grand Parkway and FM 762.
For larger projects, we work across the Houston region and the Gulf Coast.
Who to Contact
Bids and project estimates
Dave Charlemagne,
Project Estimator,
Commercial HVAC Repair FAQs
Temper Mechanical repairs commercial HVAC systems in Richmond and across Fort Bend County, including rooftop units, split systems and building controls. Our shop is at 6115 FM 762 in Richmond. Call (346) 485-8142 for service.
A TDLR air conditioning and refrigeration contractor license. Class B covers individual units up to 25 tons of cooling. Class A has no size limit and is needed for larger equipment. You can verify any license on the TDLR website.
Usually 15 to 20 years with regular maintenance. Gulf Coast heat, humidity and long run seasons shorten that, and units that only get repaired when they break often wear out years sooner.
Usually, yes. We schedule larger repairs before opening, after close or on weekends, and we fix most single component failures during the first visit.
It depends on the lease. Many triple net leases make the tenant responsible for HVAC repair and maintenance, while other leases leave it with the landlord. Check your lease first. We can bill the responsible party and send both sides the service report.
Often, because commercial equipment is larger, parts cost more, roof access takes more time and after hours work may be needed. You get a written, priced option before any work starts.
Yes. Our maintenance programs include scheduled inspections, filter and belt changes, coil and drain cleaning, and controls checks, all documented for your records.
Yes. Temper Mechanical is Texas HUB and MBE certified, which supports supplier diversity goals for public agencies, universities and corporate buyers.
Get Your Building Cooling Again
Call (346) 485-8142 for commercial HVAC repair in Richmond and Fort Bend County, or request service online.
For bids, contact Dave Charlemagne at (832) 272-8698.