★★★★★
“I had the AC unit go out overnight so I reached out in the morning and they were able to schedule me the same day. The tech took the time to explain the issue with my unit and what steps he took to fix it.”
PI
Commercial HVAC · Richmond, TX
Commercial HVAC Services in Richmond, TX
Light-commercial specialists for Fort Bend. Offices, restaurants, retail, medical. TACLA72152E, Class A, since 2016.
Fort Bend County is closing in on a million residents, and its business count has grown about 74% in a decade to nearly 15,000. Drive the Grand Parkway or US-90A through Richmond and you can watch it happen: strip retail, tilt-wall offices, restaurants, daycares, clinics. Almost every one of those roofs carries a package unit that gets ignored until it quits on a Friday afternoon. That call is what this page is for. 75 Degree AC repairs, replaces, and maintains commercial HVAC for Richmond and Rosenberg businesses, dispatching from our own Richmond location at 20926 Bright Lake Bend Ct. Call (346) 681-2625.
Same-Day Commercial Dispatch
COI Within 24 Hours
- Same-Day Dispatch
- Class A: TACLA72152E
- Since 2016
2-Year Labor Warranty
On commercial installs, in writing
Commercial AC Down? How Fast Can We Respond?
Same day, for most commercial calls in Fort Bend County. (346) 681-2625 reaches a technician, not a voicemail, and that includes Saturday and Sunday. We give you an arrival window when you call, and we call you before we’re late, not after.
We prioritize businesses that bleed money or risk a citation by the hour: restaurants with a dining room climbing past 80, daycares that have to hold 65 to 82 degrees under Texas DFPS licensing rules, medical and dental offices with temperature-sensitive equipment. After a storm, we do written damage assessments you can hand to your insurance adjuster. Hurricane Beryl caused over $20 million in damage to Fort Bend businesses in July 2024, and a good chunk of that was rooftop equipment hit by debris. If your AC is completely dead right now, our emergency AC repair in Richmond line covers nights too.
75 Degree AC provides light-commercial HVAC service across Richmond, Rosenberg, and Fort Bend County, Texas: rooftop units, package systems, splits, and ductless arrays up to 25 tons for offices, restaurants, retail, daycares, churches, and medical practices. The company holds Texas license TACLA72152E, a Class A endorsement with no tonnage ceiling, and answers (346) 681-2625 around the clock, including weekends. Typical response for commercial calls in Fort Bend is same day, and most rooftop-unit repairs finish in one visit. Quarterly maintenance agreements run $1,200 to $3,500 per year for a two-to-four-RTU building and include written service reports that satisfy manufacturer warranty documentation. In Gulf Coast humidity (Houston logged a record 145 days at or above 90°F in 2025) commercial rooftop units last 12 to 17 years instead of the national 15 to 20, which makes scheduled coil and cabinet care the difference between a $400 repair and a $15,000 replacement.
TACLA72152E Class A · Same-Day Commercial Dispatch · COI in 24 Hours · 2-Year Labor Warranty on Installs · Richmond, TX Office
Call (346) 681-2625: Same-Day Commercial Dispatch Free site assessment for maintenance quotes.
What Does “Light Commercial” Actually Cover?
Texas issues two air conditioning license classes. Class B stops at 25 tons of cooling. Our TACLA72152E is Class A, which has no tonnage ceiling at all. We still focus on light commercial up to 25 tons, because that is where we are fastest and where our trucks are stocked. You can verify the license yourself on the TDLR license search.
Buildings we work in every week:
- Offices and professional suites
- Retail strips and standalone stores
- Restaurants and food service (including makeup air balance for kitchen exhaust)
- Salons and barbershops
- Gyms and fitness studios
- Daycares and learning centers
- Churches and worship spaces
- Dental, medical, and veterinary practices
- Light warehouse and flex space
And the honest boundary: we do not service chillers, cooling towers, or walk-in coolers and freezers. That is plant-scale and refrigeration work, a different trade. If that is what you need, tell us when you call and we’ll point you to a shop that does it well. Our Richmond HVAC team also handles homes, so if you own the building and live nearby, one number covers both.
Which Commercial HVAC Services Do We Handle?
Five commercial services, all dispatched from our Richmond location:
Commercial HVAC Repair
Rooftop units fail in predictable ways in Fort Bend: compressors, condenser fan motors, contactors, capacitors, belt-drive blowers, and economizer dampers that seize from humidity and dust. We diagnose with gauges and meters, not guesswork, and we work on every major brand. Carrier WeatherMaker and WeatherExpert. Trane Precedent and Voyager. Lennox Raider. Daikin Rebel. Goodman package units, which are built 40 minutes from here at the Daikin campus in Waller. Several Richmond shops are locked into one manufacturer’s dealer program. We are not, so you never hear “we don’t touch that brand.”
Commercial HVAC Installation and RTU Replacement
A typical rooftop unit swap is one working day: crane on site in the morning, old unit off, curb adapter fitted if the footprint changed, new unit set, gas and electric reconnected, startup and commissioning before we leave. New commercial package units must meet federal IEER efficiency minimums of 12.3 to 14.8 depending on size, a real step up from what a 15-year-old unit delivers. We back commercial installations with a 2-year labor warranty on top of the manufacturer’s parts coverage, and we put that in writing. Need ductwork or a whole-building changeout? That is our full HVAC system installation crew.
Commercial Maintenance Agreements
HVAC accounts for roughly 40% of a commercial building’s energy use, so a neglected RTU shows up on your electric bill long before it dies. Our agreements follow ASHRAE Standard 180 inspection tables: quarterly visits for most buildings, monthly filter service for restaurants. Every visit ends with a written report that satisfies manufacturer warranty documentation, which matters if you ever file a compressor claim. Terms are the part we’re proudest of: month-to-month after the first year, 30-day written cancellation, no penalty, no auto-renew trap. Property managers get one schedule, one invoice, and one contact across every unit they own. For your house, the residential version of this is our AC tune-up plans.
Commercial Heating Repair
Most Richmond commercial heat is a gas section inside the same rooftop unit, and it sits idle nine months a year. Then the first January cold snap hits, the heat exchanger or induced-draft motor won’t fire, and your staff is wearing coats indoors. We service RTU gas heat, electric heat strips, and heat pumps, and our maintenance agreements include a fall heating check precisely so this call never happens.
Pre-Lease HVAC Assessment
Nobody else in Fort Bend offers this, and it has saved tenants real money. Before you sign a commercial lease, we inspect the HVAC serving your space and give you a written report: age, condition, remaining service life, and what a replacement would cost. A nine-year-old RTU on a building you’re about to lease for five years is a $12,000 to $35,000 problem hiding in plain sight, and under most Texas leases it becomes your problem. Spend a few hundred dollars before you sign, then negotiate from facts.
1. You call (346) 681-2625
A person answers, takes the building type and symptoms, and gives you an arrival window.
2. Same-day commercial dispatch
For most Fort Bend calls. We call before we’re late.
3. Written diagnostic and quote
Before any work starts. The quote is the price.
4. Your approval first
If we find something beyond the quote, the tech calls you before touching it. Every time.
5. Repair from a stocked truck
We carry the common RTU failure parts, so most commercial repairs finish on the first visit. If a part has to be ordered, you get a written ETA.
6. You get the paperwork
Service report, readings, and recommendations, emailed same day. PM customers get the warranty-grade documentation file.
What Does Commercial HVAC Cost in Richmond?
Nobody on this side of Houston publishes commercial numbers, so here are typical Fort Bend market ranges. Your building will land somewhere inside them, and the quote you approve is what you pay.
| Service | Typical range | Frequency |
|---|---|---|
| Per-RTU tune-up | $150 to $350 per unit | 2 to 4 times a year |
| Maintenance agreement, 2 to 4 RTU building | $1,200 to $3,500 per year | annual contract |
| Maintenance budget rule of thumb | $0.35 to $0.65 per sq ft per year | planning figure |
| Emergency repair call | $800 to $3,500+ | as needed |
| R-410A refrigerant recharge | $600 to $900 at 2026 prices | leak-driven |
| RTU replacement, 3 to 25 ton | $12,000 to $35,000 installed | every 12 to 17 years |
One line item that surprises business owners: Texas Comptroller Rule 3.357 makes repair labor on commercial property taxable, 8.25% in Fort Bend County. Residential labor isn’t taxed, commercial labor is. We itemize it on every invoice so you can see it. Some shops bury it in the total.
Same-day commercial dispatch — (346) 681-2625Should You Repair or Replace Your Rooftop Unit?
Start with the 50% rule: when a repair costs more than half the unit’s replacement value and the unit is past the midpoint of its life, replacement usually wins. In Gulf Coast humidity that midpoint comes early. Local rooftop units run 12 to 17 years against the national 15 to 20, because coastal moisture eats coils and cabinets.
| Factor | Points to repair | Points to replace |
|---|---|---|
| Unit age | Under 8 years | Over 10 years (Gulf Coast clock) |
| Repair quote | Under 50% of replacement cost | Over 50%, or second major failure |
| Refrigerant | R-454B or recently recharged R-410A | Leaking R-410A at $12 to $18 per pound wholesale, roughly double 2023 |
| Efficiency | Meets current IEER | Pre-2018 unit, 20 to 30% behind today’s minimums |
| Compliance | Under 15 lbs of charge | Over 15 lbs: EPA leak tracking plus mandatory repair within 30 days |
The tax side tilts the math further than most owners realize. Section 179 lets a business expense up to $2,560,000 of equipment in 2026, and the One Big Beautiful Bill Act restored 100% bonus depreciation permanently. A $25,000 rooftop unit can often be written off entirely in year one. There’s also the 179D energy-efficiency deduction, up to $5.94 per square foot, but only for projects that begin construction by June 30, 2026. Run all of it past your CPA before you commit; we’ll hand you the equipment specs they need. Utility incentives for commercial efficiency exist too, but they’re performance-based rather than flat rebates, so ask us about a site evaluation rather than expecting a coupon.
We give you the repair-versus-replace numbers in writing during the diagnostic visit, no charge for the analysis.
Who Fixes Commercial HVAC Near Rosenberg and Aliana?
We do, from inside the county. The restaurant rows on FM 762 and at Brazos Town Center in Rosenberg. Strip centers along US-90A and FM 359. The Grand at Aliana and the retail filling in along the Grand Parkway, where the 4,700-acre Austin Point development is about to add 14 million square feet of commercial space.
Pecan Grove churches, Long Meadow Farms dental suites, Harvest Green daycares. If your building is in Richmond, Rosenberg, Sugar Land, Katy, or anywhere in Fort Bend County, you’re inside our same-day zone, and greater Houston is covered through our commercial HVAC across greater Houston operation.
Why Trust 75 Degree AC With Your Building?
Five reasons facilities directors and owner-operators keep our number saved.
- The license is the floor. TACLA72152E, Class A, EPA 608 certified techs, operating since 2016. Verify it on the TDLR search before you call anyone, including us.
- Procurement-ready. Certificate of insurance within 24 hours, W-9 on file, vendor onboarding paperwork handled without a chase. Property managers and franchise facilities directors get the documentation their audits require.
- Permits, handled. We pull the City of Richmond mechanical permit ($60 for a rooftop unit, $75 minimum) or file with Fort Bend County Engineering when your building sits outside city limits, and you get the signed inspection record for your files.
- A 2-year labor warranty on commercial installs. The strongest stated warranty term on this side of the county. In writing, every job.
- Led by a named human. Kenny Ho runs our crews. When something matters, you talk to him, not a call center.
What Customers Say on Our Google Profile
4.9 across 240+ reviews on 75 Degree AC’s Google Business Profile.
★★★★★
“We’ve been using 75 Degree AC for maintenance and haven’t had issues since. They’re easy to schedule with and don’t try to sell things we don’t need. That’s appreciated.”
LS
★★★★★
“Kenny was prompt, knowledgeable, and honest when he assessed my situation. That’s hard to come by when dealing with people in business.”
BH
Commercial HVAC Questions, Answered
How much does commercial HVAC maintenance cost for a small business?
Most small businesses with one to three rooftop units budget $500 to $1,200 per unit per year for a preventive maintenance contract. That covers scheduled visits, filters, coil cleaning, refrigerant checks, and priority dispatch. A single emergency call without a contract runs $800 to $3,500 or more.
Does commercial HVAC qualify for a Section 179 tax deduction?
Yes. Rooftop units, package systems, and splits installed in a nonresidential building qualify for immediate expensing under Section 179, up to $2,560,000 in 2026. One nuance: RTUs on an existing building generally don’t count as Qualified Improvement Property for bonus depreciation, so the two paths differ. Confirm with your CPA before purchase.
Who is responsible for commercial HVAC, the tenant or the landlord?
It depends on the lease. In NNN (triple net) leases, common across Texas retail strips, the tenant almost always pays for HVAC maintenance and repairs while the landlord typically covers full replacement. Many leases require the tenant to keep an active service contract, and skipping it can void the landlord’s replacement obligation. Check the “HVAC Maintenance” or “Tenant Obligations” section of your lease.
How often should commercial HVAC be serviced?
Twice a year is the minimum for offices and retail, spring and fall. Quarterly is the practical standard in Fort Bend’s nine-month cooling season, and restaurants need monthly filter service on top of that. Inspect rooftop units after any major storm.
How often should commercial HVAC filters be changed?
Offices: every 3 to 6 months. Restaurants and food service: every 1 to 2 months because of grease load. Gyms, salons, and dusty retail: every 4 to 6 weeks. Roof access should be written into your maintenance scope so filter changes don’t get skipped.
How long do commercial HVAC units last in Houston's climate?
12 to 17 years for rooftop units here, versus 15 to 20 nationally. Year-round cooling demand, coastal humidity, and 145 days at or above 90°F in 2025 all shorten the clock. Consistent maintenance is the biggest factor in reaching the high end.
When should I replace my commercial HVAC system instead of repairing it?
Use the 50% rule. A 12-year-old rooftop unit worth $18,000 to replace that needs a $10,000 compressor is a replacement candidate. We put the repair-versus-replace math in writing during the diagnostic so the decision is yours, made on numbers.
Do you offer 24/7 emergency commercial HVAC repair in Richmond TX?
Yes. (346) 681-2625 reaches a technician around the clock, weekends included, for Richmond, Rosenberg, Sugar Land, Missouri City, and the rest of Fort Bend County. Our trucks carry the common rooftop unit failure parts, so most emergency repairs finish the same visit.
What is included in a commercial HVAC inspection?
Thermostat calibration, filter inspection and replacement, evaporator and condenser coil cleaning, refrigerant level check, electrical connection tightening, blower motor and belt inspection, condensate drain clearing, safety cutoff testing, and a written report with next-visit recommendations.
Is commercial HVAC repair labor taxable in Texas?
Yes. Under Texas Comptroller Rule 3.357, repair labor on commercial property is taxable, 8.25% total in Fort Bend County. Residential repair labor is not. We itemize the tax on every commercial invoice instead of hiding it in the total.
One Vendor for Every Unit You Own
One call gets a written quote, a stocked truck, and a tech who knows rooftop units. One contract gets quarterly maintenance, warranty-grade reports, COI and W-9 ready for your files, and no auto-renew games. Richmond, Rosenberg, and all of Fort Bend County.
Call (346) 681-2625. Same-day commercial dispatch, free site assessment for maintenance quotes.
75 Degree AC · 20926 Bright Lake Bend Ct, Richmond TX 77407 · License TACLA72152E · AC completely dead right now? See emergency AC repair in Richmond. Own the building and live nearby? Our Richmond HVAC team covers homes too.