Commercial HVAC · Liberty Hill, TX

Commercial HVAC That Doesn't Treat Your Business Like a Number

Rooftop units, split systems, light commercial. Restaurants, retail, offices, medical, warehouses, churches. Big chains will sell you a service agreement and send a different tech each visit. We don't work that way. You get the same crew, a real relationship, and a phone number that gets answered by someone who actually knows your building.

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RTUs
Rooftop Units & Splits
Light
Commercial Specialty
Service
Contracts Available
W9
Net-Term Billing Available
Who We Work With

Eight Industries We Service Across Central Texas

Commercial HVAC isn't one job - it's eight different ones depending on what's happening inside the building. Each industry has its own load profile, its own failure points, its own operational stakes. Here's where we have the deepest experience.

Restaurants & Bars

Kitchen heat loads are brutal, makeup air and exhaust hood interactions are tricky, and an AC failure in July empties the dining room before the staff finishes blaming the cook. We size for the actual load, not the rule of thumb.

Key concernsMakeup air balance, kitchen heat extraction, dining-room comfort

Retail Storefronts

Customer comfort drives dwell time, dwell time drives revenue. Front-door swing, glass walls, high ceilings, and signage heat all complicate retail HVAC. We've done strip-center boxes, in-line storefronts, and standalone retail.

Key concernsDoor-swing infiltration, glass loads, sign-wall heat

Offices & Coworking

Open-plan offices with one thermostat for 40 people is the most common comfort complaint in commercial. Zoning, return air placement, and variable-occupancy load planning solve more problems than equipment swaps.

Key concernsZoning, occupancy variability, evening & weekend setbacks

Medical & Dental

Patient-care environments need stable temperatures, predictable humidity, and reliable filtration. Equipment uptime is non-negotiable. A failed RTU on a Monday morning is canceled appointments and rescheduled procedures.

Key concernsHumidity control, filtration upgrades, redundancy planning

Warehouses & Light Industrial

Conditioning a 20,000-sf high-bay space is a different calculation than a 1,200-sf office. Spot cooling, evaporative options, and tall-space stratification all in play. We've conditioned everything from print shops to commercial bakeries.

Key concernsHigh-bay stratification, spot cooling, process heat loads

Churches & Event Spaces

Massive load swings - empty Tuesday, 400 people Sunday morning. Equipment has to handle both without short-cycling at one extreme or being underpowered at the other. We size and stage for the real-world demand profile, not the worst case alone.

Key concernsVariable occupancy, staging, vertical air distribution

Schools & Daycare

Per-classroom load profiles, indoor air quality requirements that exceed residential standards, and budgets that get scrutinized by boards. We've done private daycare facilities and small schools with attention to ventilation and air change rates.

Key concernsVentilation, IAQ compliance, classroom-level comfort

Multi-Tenant Properties

Strip centers, professional buildings, mixed-use. Each tenant has different needs, each landlord has a different responsibility split. We work with property managers to keep service consistent across the building and billing clear across tenants.

Key concernsTenant split-billing, response coordination, lease scope
Residential vs Commercial

Commercial HVAC Is Not Just Bigger Residential

If a contractor pitches commercial HVAC like it's a scaled-up home install, walk away. The equipment, the failure modes, the maintenance demands, and the stakes are different enough that experience in one doesn't automatically translate to the other.

Residential split system

Outdoor condenser, indoor air handler in the attic, ductwork through the home.

vs
Commercial rooftop unit (RTU)

Single integrated package on the roof. Condenser, evaporator, blower, and economizer all in one cabinet. Self-contained.

1 zone, 1 thermostat

The whole house at one temperature, set by one person.

vs
Variable air volume (VAV) zoning

Each space conditioned independently. VAV boxes, dampers, and zone controllers add complexity but make comfort possible across the building.

Outage = uncomfortable family

Inconvenient. Maybe a hotel night.

vs
Outage = closed business

Customers walk out, employees can't work, perishable inventory is at risk. Uptime isn't a nice-to-have; it's the deal.

Ductwork in attic

Insulated runs through an unconditioned attic, mostly out of sight.

vs
Above-ceiling commercial duct

Larger sheet metal runs, often combined with fire dampers, smoke detectors, and code-required access. Different installation discipline entirely.

Annual residential maintenance

Twice a year is plenty for most homes.

vs
Quarterly commercial maintenance

Commercial equipment runs harder, longer, and with less margin for error. Most commercial service contracts include quarterly inspection and filter service.

Equipment We Service

From Rooftop Units to Mini Split Banks

Commercial HVAC equipment spans more configurations than residential, and Central Texas has a mix of all of them - from 1980s strip-center RTUs to brand-new VRF-style systems in newer professional buildings.

Rooftop Units (RTUs)
Single & Multi-Stage

The workhorse of commercial HVAC. Self-contained units on the roof handle cooling, heating, ventilation, and economizing in one piece of equipment. We service every major brand - Carrier, Trane, Lennox, York, Daikin, Goodman - and stock the most common failure parts so we can usually fix on the first visit.

  • Gas-electric and heat pump configurations
  • Economizer service (outside-air dampers and controls)
  • Belt-drive and direct-drive blower service
  • Refrigerant circuit diagnosis and repair
  • Coil cleaning and condensate management
Light Commercial Splits
Up to 5-10 Tons

Smaller commercial buildings often use scaled-up versions of residential split systems - condenser outside, air handler inside, ductwork through the building. The diagnostic skills overlap with residential, but commercial code, electrical, and load calculations don't. We do both.

  • 3-ton through 10-ton split installs
  • Multi-system buildings (multiple splits serving zones)
  • Commercial-grade ductwork and registers
  • Mechanical permit and inspection coordination
  • Tenant build-out HVAC scope
Mini Split Banks & VRF
Multi-Zone Commercial

Commercial mini splits and variable refrigerant flow (VRF) systems are increasingly common in offices, medical buildings, and retrofits where ductwork is impractical. One outdoor unit can serve a dozen zones with independent control. Different equipment than residential - we're trained on it.

  • Mitsubishi, Daikin, and Fujitsu commercial certifications
  • Multi-zone planning, install, and commissioning
  • Branch box and refrigerant routing
  • Network controls and BMS integration
  • Year-round service and warranty coverage
Makeup Air & Exhaust
Kitchen / Process

Restaurant kitchens, paint booths, commercial bakeries, and similar process spaces all need balanced makeup air and exhaust. Code-required, comfort-critical, and easy to get wrong. Negative-pressure buildings can't keep doors closed and waste conditioned air constantly.

  • Hood and exhaust fan service
  • Makeup air unit installation and commissioning
  • Building pressurization balancing
  • Filter, belt, and motor maintenance
  • Code compliance support for restaurant inspections
What We Do

Commercial HVAC Services Across the Lifecycle

From a service call on a single RTU to a full multi-zone install, from monthly maintenance to once-a-decade replacement planning - we handle the full lifecycle so you have one phone number for everything.

01
Repair

Service Calls & Emergency Repair

RTU not cooling, blower not blowing, refrigerant leak, control board failure. Most commercial service calls in our area get same-day attention. We bring the most common failure parts on the truck, document what we find, and bill cleanly.

02
Maintenance

Preventive Maintenance Contracts

Quarterly or twice-yearly inspection programs tailored to your equipment and operating hours. Belt and filter changes, refrigerant checks, coil cleaning, control verification. Most commercial equipment failures are preventable with real maintenance.

03
Install

Replacement & New Installation

Replacing an aging RTU before the next summer, scoping HVAC for a tenant build-out, or speccing equipment for a new building. Load calculations, equipment selection, electrical coordination, mechanical permits - the full scope.

Commercial HVAC Q&A

Common Questions, Real Answers

How quickly can you respond to a commercial service call?
For commercial clients on a service contract, we typically respond same-day during business hours and prioritize by impact - a failed RTU at a restaurant during lunch service gets ahead of a non-urgent issue at an office. For non-contract clients we still aim for same-day or next-business-morning, but contract clients always have the front of the line. Anyone who tells you they'll be there in 90 minutes guaranteed is selling you fiction - traffic, parts availability, and current calls don't allow promises like that. We give you a real ETA and we hit it.
Do you bill on net-30 terms or require payment up front?
For established commercial accounts: yes, net-30 (sometimes net-45 for larger property management groups, by negotiation). We're set up for W-9 documentation, COI requests, and standard accounts payable workflows. For brand-new commercial customers we typically run the first 1-2 service calls on a credit card before opening a billing account, which is standard industry practice.
Are you licensed and insured to work commercial in Texas?
Yes. We carry the Texas Air Conditioning & Refrigeration license required for commercial HVAC work, plus general liability and workers' comp insurance. We're happy to provide certificates of insurance to property managers, GCs, or anyone whose process requires them - just request it during scheduling and we'll have it sent over.
Will the same tech come every visit, or do you rotate?
For commercial accounts on a service contract, we assign a lead tech who's familiar with your building and equipment, and you'll see them on the majority of visits. Backup techs are trained on your site too in case the lead is unavailable. This is one of the biggest differences between us and the chains - they rotate whoever's available, which means every visit starts with re-explaining the building. We don't do that.
Can you handle multiple buildings or a portfolio of properties?
Yes - we work with property management groups and multi-location small businesses across Central Texas. Consolidated billing, per-property reporting, and central scheduling are all standard. We're not the right call for a 500-location national chain - that's what the big national service companies exist for. We're the right call for a property manager with 5 to 25 buildings who's tired of getting passed around by the big companies.
Do you do design-build, or only repair what's already there?
Both. For new commercial buildings or major tenant build-outs, we'll do the load calculation, equipment selection, mechanical permit, install, and commissioning. For existing buildings we'll service what's there, recommend upgrades when they make sense, and replace equipment at end of life. What we don't do is engineering for buildings above ~25,000 sf or projects that need a stamped MEP design - that's where you bring in a commercial mechanical engineer, and we're happy to do the install side of those projects with the engineer's drawings in hand.
What does a commercial maintenance contract typically include?
Standard scope: scheduled inspections (quarterly or twice-yearly depending on equipment), filter changes, belt changes, refrigerant verification, coil cleaning, control system check, written report after each visit. Most contracts include priority scheduling and a discount on repairs. What's not standard: unlimited free repairs, parts coverage beyond filters and belts, and replacement equipment - those are separate conversations. We'll scope a contract that fits your actual equipment and operating hours, not a generic package.
Can you work outside business hours for businesses that can't shut down during the day?
Yes, frequently. Restaurants, retail, and businesses with tight operating hours often need us in early-morning or late-evening windows. We arrange off-hours service for contract clients with no premium during scheduled work. For unscheduled off-hours work (system down with the business open), evening and weekend rates apply. We'll always quote the off-hours cost up front so there's no surprise on the invoice.
Real Google Reviews

What Customers Say

Verified 5-star Google reviews from real Texas Legacy Services customers.

★★★★★

"Excellent professional service. You can tell they are real pros that know what they are doing. Highly recommended, they will spot the issues that other 'pros' left behind."

Christian E.Google Review · Local Guide
★★★★★

"Peter took the time to actually listen to what my situation was, then instead of taking my money by scheduling a service, he walked me through what I had to do to fix the problem on my own. He took almost 30 mins out of his time to not only talk to me but review photos I was texting him, troubleshooting with me in real time. They earned my future business for sure."

Robert K.Google Review · Local Guide
★★★★★

"Fantastic. Peter was able to fit us in his schedule for same-day appointment. Affordably resolved the problem. Will be using him again as needed."

Luckey R.Google Review

Got a Commercial Building
That Needs Real Service?

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(512) 200-1740Request a Site Visit →