HVAC Duct & Vent Installation
in Midland, TX
We provide comprehensive HVAC duct & vent installation and maintenance, handling every part of the airside in commercial buildings: new ductwork installation, duct sealing and leak testing, professional duct cleaning, register and grille work, and exhaust ventilation. SMACNA spec construction, ACCA Manual D duct sizing, and documented airflow balancing across Midland, TX and West Texas ensure high efficiency.
Ductwork Built and Maintained Right
A modern HVAC system is only as good as the ducts moving its air. Industry studies show that typical commercial ductwork loses 25% to 40% of conditioned air through leaks, undersized runs, and crushed flex. That loss shows up as comfort complaints, higher energy bills, and equipment that runs longer to do the same job. This leakage often indicates the need for professional hvac duct repair or a full air duct replacement to restore system performance. We designs, installs, seals, cleans, and balances commercial ductwork to SMACNA standards across West Texas, with high grade ductwork insulation to improve efficiency. We handle new construction, retrofits, replacements, and indoor air quality work.
Got hot spots, weak airflow, or rising bills? Call (432) 528-8905 for a duct assessment. Static-pressure testing, leak measurement, and a written scope are done before any ductwork starts. Most “AC problems” trace back to the airside, requiring an HVAC duct repair, and the duct fix is almost always cheaper than the equipment fix.
Duct & Vent Installation Services
From new construction ductwork to sealing leaky existing duct systems, professional cleaning, HVAC vent installation, register and grille work, and exhaust ventilation, we handle the full airside of commercial HVAC across Midland TX.
New Commercial Ductwork Installation
New construction, additions, or full HVAC duct replacement projects. Genmech HVAC sizes ducts using ACCA Manual D, fabricates and installs to SMACNA standards, and uses sheet metal trunk lines with insulated flex only where appropriate. For all projects, our HVAC duct installation services ensure properly sized ductwork holds 0.5 inches W.C. static pressure or less the difference between a quiet, efficient system and one fighting itself.
- ACCA Manual D duct sizing
- SMACNA spec sheet metal trunk lines
- R-6 to R-8 insulation rated for application
- Proper turning vanes and supports
Duct Sealing & Leak Testing
Most existing ductwork leaks 25% to 40% of conditioned air. The fix is mastic & mesh sealing at every joint, transition, and boot, paired with leak-testing to verify the work. We measure duct leakage before and after, so you have proof the air is now reaching the registers instead of the ceiling cavity.
- Mastic & mesh joint sealing
- Boot, plenum, and transition sealing
- Pre and post leak rate testing
- Documented before / after performance
Commercial Duct Cleaning
Decades of accumulated dust, construction debris, and biological growth quietly degrade indoor air quality and force the HVAC to work harder. NADCA method duct cleaning uses negative air collection and powered agitation tools to clean trunk lines, branches, and plenums, with a documented before / after for the property record.
- NADCA method negative air cleaning
- Trunk, branch, and plenum cleaning
- Coil cleaning at the air handler
- Sanitization options for IAQ projects
Registers, Grilles & Diffusers
The wrong register in the wrong location creates noise, drafts, and dead zones in the room. GenMech HVAC selects supply diffusers, return grilles, and registers matched to the airflow, throw distance, and ceiling height of each space, then installs them aligned, level, and clean.
- Supply diffuser sizing for throw and noise
- Return grille sizing for face velocity
- Linear, square, and round diffusers
- Damper controlled balancing registers
Exhaust & Make Up Air Ventilation
Bathroom exhaust, kitchen hood exhaust, mechanical room ventilation, and dedicated outside air systems. Code compliant exhaust with properly sized make up air keeps buildings from going negative pressure, which causes door pull, backdrafting, and humidity intrusion. GenMech HVAC installs to local code with documented airflow.
- Bath, kitchen, and mechanical room exhaust
- Make up air units (MAUs) and DOAS
- Energy recovery ventilators (ERVs)
- Code compliant termination and clearances
Air Balancing & Static Pressure Testing
An installed duct system is not finished until the airflow at every register matches the design intent. We measures supply and return CFM at each grille, adjusts dampers and balancing registers, and verifies that total system static pressure is within manufacturer specs for the equipment.
- Per register CFM measurement
- Damper adjustment to design airflow
- Static pressure verification at the unit
- Documented air balance report
Signs Your Ductwork Needs Attention
When tenants and facility managers describe HVAC problems, the symptoms point to ductwork roughly half the time. The equipment may be fine, but the duct system delivering its air may not be. Each of these is a strong indicator that the airside, not the equipment, is the actual problem.
Hot and cold spots between rooms. One office is freezing, the next is sweltering, and the thermostat reads the average. The cause is almost always poor duct balancing, undersized branches, or crushed flex feeding the warm room. A balanced system delivers the design CFM to every register.
Visible dust around supply registers. A faint gray halo around supply diffusers means the register is pulling unfiltered air from the ceiling cavity through duct leaks downstream of the filter. Every breath of that air is unfiltered, dust loaded, and chewing up the evaporator coil.
Whistling, banging, or rumbling from the ducts. Whistling means undersized duct or an obstructed return. Banging is duct expansion against framing. Rumbling is a duct that’s flexing under static pressure. None of these are “just noise.” They’re the duct system telling you it’s working too hard.
Energy bills are high and the equipment is fine. Conditioned air leaking into a ceiling cavity instead of reaching the room is the same as paying to cool the ceiling. A 30% leak rate (which is typical for unsealed ductwork) means you’re paying 30% more than necessary to keep the building comfortable.
The ductwork has never been cleaned. Commercial ductwork accumulates a measurable layer of dust, construction debris, and (in older buildings) biological growth over years of operation. Beyond the IAQ implications, that buildup constricts the duct cross section and forces the blower to work harder.
Doors pull hard or slam on their own. A building that’s negative pressure (more air being exhausted than supplied) pulls doors closed, brings unfiltered outside air in through cracks, and can backdraft combustion appliances. Cause: undersized make up air or oversized exhaust. The fix is on the ventilation side.
How We Handle Duct & Vent Work
Whether it’s new hvac duct installation, a sealing project, professional cleaning, or rebalancing an existing system, every job runs through the same four-step process: measure, design, install or correct, then verify the result.
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1
Site Walk & Static Pressure Test
Walk the building, inspect existing ductwork, measure total external static pressure at the air handler, and identify obvious problems: crushed flex, missing insulation, unsealed joints, undersized branches. Static pressure tells us whether the duct system is fighting the equipment, which it usually is.
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2
Manual D Sizing & Written Scope
For new construction or major retrofit: ACCA Manual D duct sizing matched to the equipment and zone CFM requirements. For sealing or cleaning: a written scope identifying every joint to be sealed or section to be cleaned, with leak rate or before and after photo documentation as the deliverable.
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3
SMACNA Spec Installation
Sheet-metal trunk lines fabricated and installed to SMACNA standards as part of our hvac duct installation services. Insulated flex used only on short branch runs at the appropriate insulation rating. Mastic and mesh sealing on every joint, transition, boot, and plenum. Properly supported, properly insulated, properly aligned. No shortcuts that come back to bite the building owner.
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4
Air Balance & Documentation
Every duct project ends with measured CFM at every register, damper adjustments to match design airflow, and verified static pressure within manufacturer spec at the air handler. You get an air balance report with the readings, room by room. The system isn’t done until the airflow matches the design intent.
Why Choose US for Duct & Vent Work
Most HVAC companies treat ductwork as an afterthought to the equipment. We treat it as the system that determines whether the equipment performs at all. Sized right, sealed right, balanced right the duct work is what makes the rest of the HVAC investment pay off.
SMACNA & ACCA Standards
Every duct system designed to ACCA Manual D and built to SMACNA construction standards. These are the industry references that govern duct sizing, sheet-metal gauge, support spacing, and insulation rating. Deviations from these standards are how duct systems end up loud, leaky, and inefficient.
Measured, Not Estimated
Static pressure tested at the air handler. CFM measured at every register. Leak rate measured before and after sealing. Air balance verified against design. Most contractors don’t measure any of this. We measure all of it because measurements are how you prove the work was done right.
NADCA-Method Cleaning
Duct cleaning done to NADCA standards: negative-air collection, powered agitation tools, and cleaning at the source. Some companies sell duct cleaning by running a vacuum hose in a register and calling it done. We clean trunk lines, branches, plenums, and coil access, with photo documentation before and after.
One Team for the Whole System
The team that designs, installs, seals, and balances your ductwork is the same team that maintains the equipment connected to it. No finger-pointing between an installer and a service contractor. PM agreements available so the duct system gets the cleaning and inspection it needs over its 30+ year service life.
Duct & Vent Work Across West Texas
We handles duct and vent installation, sealing, cleaning, and balancing across the entire West Texas region: Midland, Odessa, Lubbock, San Angelo, and surrounding communities within a 300-mile radius. New construction, retrofit, and IAQ projects.
Frequently Asked Questions
How often should commercial ductwork be cleaned?
What’s the benefit of duct sealing on existing ductwork?
Do you install ductwork for new construction projects?
What’s the difference between sheet metal and flex duct, and which should I use?
Can you clean ducts without taking the building offline?
Do you handle exhaust ventilation and make up air?
Fix the Airside, Fix the System
Whether you need new ductwork, a sealing pass on an existing system, professional duct cleaning, or a full air balance, call US for HVAC duct & vent installation and maintenance. Static-pressure tested, leak rate verified, and air balance documented on every project.