Mechanical Contractor in Dallas: Commercial HVAC & Mechanical Contractor Services

Your building has a lot of moving parts. The air system sits on the roof, the cooler is in the back, the hood hangs over the grill, and there may be a boiler in the basement. When one of them fails, your business feels it fast. If you need a Mechanical Contractor Dallas businesses can count on for all of it, that’s what we do at Xtreme Air Services – North Dallas. The right fix starts with knowing which service you need. One team that handles every piece also keeps you from chasing five different trades. We’ve been doing this work since 2009, and that history helps us spot problems fast.

We’re fully licensed and insured, HVAC License #TACLA29023C. Below are ten of our core commercial services. Each section gives you a short, plain answer: what the service is, who needs it, and how it’s different from the service closest to it. Home comfort calls belong to our HVAC Contractor side. This page covers commercial buildings only.

Not sure where your problem fits? Call us, tell us what’s going on, and we’ll point you to the right service.

Commercial HVAC Installation in Dallas

You’re opening a second location. Or maybe the building you just bought has a system older than your lease. That’s where commercial HVAC installation comes in. It means putting in new equipment that’s sized and set up for your space, on a new build, a retrofit, or an expansion.

In Dallas, that work runs from office towers along the Dallas North Tollway to strip retail and restaurants up and down the North Dallas corridor. Each job is different. An office floor needs steady air across a lot of zones. A restaurant needs a system that can handle a hot kitchen and a full dining room at the same time.

In our experience, sizing is the step people rush. A unit that’s too big turns on and off too often and leaves the air feeling clammy. A unit that’s too small runs nonstop through August and still can’t keep up.

We figure out the load, work with your general contractor, and get the equipment set, piped, connected, and started. Texas summers are long, so we plan for how the system will hold up in its fifth July, not just its first. Home AC installs stay with our HVAC Contractor side. You can see how a commercial install runs from start to finish on our Commercial HVAC installation page.

Commercial HVAC Repair & Maintenance for Existing Systems

Commercial HVAC repair & maintenance is for the equipment you already have. Installation puts a new system in. This service keeps the one on site running through diagnostics, repair calls, and regular upkeep.

Most calls start with a complaint from a tenant or an employee. Watch for these signs:

• Some rooms run hot while others run cold
• Warm air coming from the vents during business hours
• Banging, grinding, or squealing from the equipment
• Energy bills climbing even though your use hasn’t changed
• A system that short-cycles, turning on and off every few minutes

A good diagnosis finds the cause, not just the symptom. A tripped breaker might be the whole problem. It could also point to a failing motor that’s pulling too much power. We check before we replace anything, and we explain what we found in plain English.

We work on split systems, air handlers, and packaged units across Dallas. And with same-day service, a breakdown on a Tuesday morning doesn’t have to wait until next week. Read more about how we handle repairs and upkeep on our Commercial HVAC repair & maintenance page.

Rooftop Unit (RTU) Service for Retail and Strip Centers

Drive past almost any Dallas strip center and look up. Those boxy units on the flat roof are packaged rooftop units, or RTUs. The compressor, coils, and fans all live in one cabinet that sits on a curb built into the roof.

RTU service covers that packaged rooftop equipment only. General commercial HVAC repair & maintenance covers every system type, including split systems with an outdoor condenser and an indoor air handler.

That difference shows up on service day. An RTU job means roof access, a safe path across the roofing, and a curb that has to stay sealed. A bad curb seal can let water drip into the store below, so we check it every time we’re up there. Hail season is hard on these units too. Bent coil fins choke off airflow, and many owners don’t notice until a tenant complains about the heat.

In a lot of retail buildings, one RTU serves one tenant space. When it goes down, that tenant may have to close the doors. We work to get the unit running again fast. You’ll find more about rooftop equipment on our Rooftop unit (RTU) service page.

Got a rooftop unit acting up? Call us today and a technician can be headed to your roof.

Commercial Refrigeration Service for Restaurants and Grocers

Is your reach-in running warm? Is the display case sweating more than usual? Commercial refrigeration service covers repair and upkeep of the refrigeration equipment you already own. That includes reach-ins, prep tables, display cases, and the systems behind them in restaurants, grocery stores, and food service businesses.

For a restaurant, refrigeration isn’t about comfort. It’s about protecting the food you already paid for and keeping your temps where inspectors expect them. A case that drifts a few degrees is worth a look before it becomes a bigger problem.

Dallas heat makes these systems work harder. A condenser in a hot back room or on a sunbaked roof has far less margin than one in a cool space. Dirty coils and low refrigerant are common causes, and both can be fixed. If we think there’s a leak, Refrigeration leak detection finds it before we add any refrigerant. Topping off a system without finding the leak just puts off the next call.

This service is for existing equipment. Choosing and placing new units for a build-out is Commercial refrigeration installation, which is a separate job. Get the full rundown on our Commercial refrigeration page.

Commercial Kitchen Ventilation for Restaurant Build-Outs

The hood is the part everyone sees. Commercial kitchen ventilation is the whole system behind it. It covers how fresh air comes in, how smoke and heat go out, and how the two stay in balance so your cooking equipment works the way it should.

That balance matters more than most people expect. If you pull too much air out, the doors get hard to open, pilot lights can flicker, and the dining room feels drafty. That’s why Make-up air systems usually go in alongside the ventilation and hood work. Make-up air simply replaces the air your exhaust pulls out.

In Dallas, these pieces are often permitted together. Inspectors want to see that the exhaust, the hood, and the make-up air were planned as one system that meets code. When those plans are drawn up separately, approvals tend to stall.

We work with restaurant owners and general contractors early, before the walls close up. That planning stage is often where a kitchen build-out wins or loses its schedule. Routing the duct right the first time is much easier than tearing into a finished wall after an inspection. See how we approach kitchen airflow on our Commercial kitchen ventilation page.

Ready when you are – get in touch today.

(469) 213-3107

Call Today, Get Service Today. Xtreme Air Services — North Dallas is ready to help.

Exhaust Hood Installation for Commercial Kitchens

Opening day usually hinges on one inspection. Exhaust hood installation is often the step that stands between a finished kitchen and an open restaurant.

The hood is the specific piece of equipment mounted over your cooking line. It catches grease, smoke, and heat right where they start. Commercial kitchen ventilation is the broader airflow system the hood connects to. The hood is one part, and ventilation is the whole path.

Placement makes or breaks the job. The hood has to cover the cooking equipment under it with the right overhang. It has to hang at the right height and keep proper clearance from anything that can burn. The grease duct has to be sealed and sloped correctly, too.

In Dallas, a restaurant typically needs the hood installed and approved before health and fire inspections will pass. If the hood is off, your opening date moves. So we treat the hood as a schedule item, not just a piece of metal.

We work with your general contractor so the hood, the duct, and the make-up air are ready at the same time. You’ll find more on hood work on our Exhaust hood installation page.

Walk-In Cooler Repair for Above-Freezing Storage

The thermometer on the cooler door reads 44, and the lettuce is starting to wilt. Walk-in cooler repair covers the box that holds your produce, dairy, and beverages above freezing. Coolers run above freezing, and their compressors work differently than a freezer’s. Freezers also need separate attention to the defrost cycle.

Here are some common cooler problems:

• Worn or torn door gaskets that let warm air leak in
• A door that doesn’t swing shut all the way on its own
• A compressor that runs nonstop or won’t start
• Iced-over evaporator coils that block airflow
• Dirty condenser coils, especially on hot roofs or back walls

When you’re troubleshooting, start with the door seal. A torn gasket is a small part, but it can make a big compressor work overtime all day long. Run your hand around the edge, and if you feel cold air escaping, that’s a clue.

If the box is still warm after that, call us. We’ll track down the cause and get your cooler back to temperature so your stock stays safe. Learn more about cooler repair on our Walk-in cooler repair page.

Walk-In Freezer Repair for Below-Freezing Storage

A freezer isn’t just a colder cooler. Walk-in freezer repair handles boxes that run below freezing, often around zero degrees. Coolers hold produce and beverages above freezing. Freezers depend on a defrost cycle and a compressor built for low-temperature work, and that’s a much harder job for the equipment.

The defrost cycle is how the system melts ice off the evaporator coil a few times a day. When a heater, timer, or sensor fails, ice builds up on the coil. Airflow drops, and the box slowly starts to warm.

Frost on the ceiling, ice around the door frame, or water pooling on the floor all point to trouble. So does a compressor that hums along but never seems to catch up.

Dallas summers add to the load. A freezer condenser sitting in a 100-degree alley has very little room for error. We check the defrost system, the compressor, and the refrigerant charge, then fix what’s wrong. You’ll find more detail on our Walk-in freezer repair page.

Not sure what your Mechanical Contractor project needs? Ask us.

(469) 213-3107

Call Today, Get Service Today. Xtreme Air Services — North Dallas is ready to help.

Commercial Preventive Maintenance Programs

How many of last year’s service calls could have been caught early? Commercial preventive maintenance is a scheduled program, set up by contract, that covers your HVAC, refrigeration, and other mechanical equipment on a regular calendar. It’s proactive. A single repair or service visit only shows up after something has already broken.

A typical program covers work like this:

• Filter changes and coil cleaning on HVAC systems and rooftop units
• Refrigeration temperature checks, gasket checks, and condenser cleaning
• Inspections of belts, motors, and electrical connections
• Written notes on wear, so you can plan replacements ahead of time

We time visits around Dallas seasons. Cooling checks happen before the summer heat sets in. Heating checks happen before the first hard freeze.

For a facility manager, the real payoff is predictability. You know who’s coming, when they’re coming, and what they’re checking. Small problems get flagged on a normal weekday instead of turning into a breakdown on a busy Saturday. Compare a one-time visit with an ongoing plan on our Commercial preventive maintenance page.

Boiler Repair for Multifamily, Hospitality, and Healthcare Buildings

Many Dallas apartment complexes, hotels, and healthcare buildings rely on a boiler for hot water and hydronic heating. Hydronic heat simply means hot water moving through pipes to warm the building. When the boiler faults, residents lose hot showers, guests start calling the front desk, and a clinic can struggle to run normally.

Boiler repair fixes an active fault. Boiler servicing is a general tune-up visit. Boiler maintenance is the ongoing scheduled program, not a single visit. If your boiler is down right now, repair is the one you need.

Common faults include ignition failures, pressure problems, leaking valves, circulator pump trouble, and lockouts tripped by a safety control. Dallas winters can bring hard freezes, and that’s when boilers are pushed the hardest. We troubleshoot the fault, explain what failed and why, and make the repair so your residents or guests have heat and hot water again. Read more about boiler repair on our Boiler repair page.

Whatever’s down in your building, call Xtreme Air Services today and talk to a real person to get a technician headed your way.

Other Mechanical Contractor Services We Handle

Beyond the services above, our team also covers One-stop commercial service, Ice machine installation, Ice machine repair, Cold storage installation, Building automation / controls, Commercial ductwork, Commercial water heater, Commercial plumbing, Commercial electrical, Boiler installation, Boiler replacement, Boiler servicing, Boiler maintenance, Boiler cleaning, Boiler safety inspections, Boiler system design, Boiler commissioning, Boiler upgrades, Boiler decommissioning, and Boiler consultation for buildings across Dallas.

We also handle Chiller installation, Cooling tower installation, Mechanical design-build services, Pump installation and repair, Ductwork fabrication, Sheet metal work, Piping installation, Ventilation system installation, Hydronic heating installation, VRF system installation, Variable air volume system install, and HVAC system balancing for larger mechanical projects.

Rounding out our commercial work are Mechanical system maintenance, Mechanical system troubleshooting, Mechanical system commissioning, Mechanical equipment retrofits, Building mechanical upgrades, Central plant upgrades, Exhaust system installation, Air filtration system installation, Humidification system installation, Dehumidification system installation, Radiant heating installation, Refrigerant piping installation, Energy management systems, Industrial HVAC service, Process cooling system installation, Industrial ventilation, Chilled beam installation, Geothermal HVAC installation, Commercial refrigeration installation, and Building automation systems. Reach out and we’ll point you to the right fit.