Family-Owned Since 1974 Licensed & Insured · TACL A16607C Woman-Owned Business
Design to Commissioning

Commercial HVAC Installation

A new commercial HVAC system is a major investment, and the payoff depends on how well it is designed, sized, and installed. Kahn Mechanical treats every installation across Dallas-Fort Worth as an engineered project, not a swap-out.

Commercial HVAC Installation

Commercial HVAC Installation Done Right From Day One

The return on a new system depends entirely on the install. An oversized unit short-cycles and wastes energy. An undersized one never keeps up. A rushed job leaves comfort complaints and warranty gaps you pay for later. Kahn Mechanical has installed commercial HVAC across Dallas-Fort Worth since 1974, and we engineer every project around your building instead of dropping in whatever fits the old curb.

We install and replace rooftop packaged units, split systems, chillers, boilers, VRF and VRV systems, heat pumps, make-up air units, and the building automation controls that tie them together. Whether you are replacing failed equipment, upgrading an aging system for efficiency, or fitting out a new build, we handle the full scope from load calculation and design through commissioning and startup.

Because we are a full commercial mechanical contractor, we manage the ductwork, piping, electrical coordination, and controls integration in-house. Your project stays with one accountable team instead of a chain of subcontractors, which is why it finishes right-sized, efficient, and built to last.

50+Years Serving DFW
200-TonSystems Installed
All BrandsMajor Manufacturers
24/7Support After Install
Project Scope

What Every Kahn Installation Includes

A complete, engineered project, not just a piece of equipment dropped on the roof.

Load calculation and system design
Equipment selection and right-sizing
Removal and disposal of old equipment
Rigging, placement, and mounting
Ductwork and piping modifications
Controls and building automation integration
Commissioning and startup testing
Warranty registration and documentation
The Upgrade Payoff

What a Modern Commercial HVAC System Delivers

Replacing tired equipment is not just a repair you avoid. It changes how your building runs.

ConsiderationAging SystemNew Kahn Installation
Energy CostHigh and rising with ageLower with higher-efficiency equipment
ReliabilityFrequent, unplanned breakdownsNew equipment backed by warranty
ComfortHot and cold spots, tenant complaintsZoned, consistent temperatures
ControlsManual or outdated thermostatsSmart controls and BAS integration
RefrigerantR-22 or obsolete refrigerantsCurrent, compliant refrigerants
Downtime RiskEmergency failures at the worst timePlanned, minimal-disruption install
Our Process

How Our Installation Process Works

Four accountable stages, from the first walkthrough to a fully commissioned system.

1
Assessment and Load Calculation
We evaluate your building, usage, and existing equipment, then run proper load calculations so the new system is sized to your actual needs.
2
Design and Proposal
We design the system, select efficient equipment, and give you a clear proposal with scope, options, and pricing you can take to ownership.
3
Professional Installation
Factory-certified crews handle removal, rigging, ductwork, piping, and controls, scheduled to minimize disruption to your operations.
4
Commissioning and Support
We test, balance, and commission to spec, register warranties, hand you documentation, and back it with ongoing service.
Why Kahn

Why Facility Managers Choose Kahn for Installation

In-house load calculations and designRight-sized systems engineered to your building, not guesswork.
Factory-certified installation crewsTrained on current equipment, codes, and manufacturer requirements.
All major brandsCarrier, Trane, York, Lennox, Rheem, Goodman, and Daikin.
Minimal-disruption schedulingPhased and after-hours work to keep your building running.
Controls and BAS integrationNew equipment that talks to your existing building systems.
Full mechanical contractorDuctwork, piping, and electrical coordination handled in-house.
Code and warranty complianceInstalled to spec so manufacturer warranties stay valid.
50 years in DFWFamily-owned since 1974 and accountable start to finish.
Proof

Upgrades That Pay for Themselves

TTI, Inc. on partnering with Kahn Mechanical

Scofield Memorial Church has realized a fifty thousand dollar savings in energy in the last twelve months from the upgrade in HVAC units completed just last summer, a one-third reduction in our total electrical bill.

Director of OperationsScofield Memorial Church

See the systems we have designed and installed on our projects page, and read more feedback on our testimonials page.

Coverage

Installing Commercial HVAC Across Dallas-Fort Worth

We have designed and installed commercial HVAC across North Texas since 1974, covering Dallas, Collin, Denton, and Tarrant Counties. Find detailed local coverage on our service areas pages.

Dallas County

  • Dallas
  • Irving
  • Richardson
  • Garland
  • Mesquite
  • Carrollton
  • Farmers Branch

Tarrant County

  • Fort Worth
  • Arlington
  • Grapevine
  • Southlake

Collin County

  • Plano
  • Frisco
  • McKinney
  • Allen

Denton County

  • Denton
  • Lewisville
  • Flower Mound
  • Little Elm
Request Service

Get a Fast Response From Kahn Mechanical

Request Commercial HVAC Installation

Tell us about your building and the system you are considering, and we will get right back to you.

Prefer to talk now? Call 214-831-5551
Common Questions

Commercial HVAC Installation FAQ

How do I know if I should repair or replace my commercial HVAC system?
It comes down to the equipment's age, the cost of repairs compared to the value of the unit, how often it breaks down, and its energy efficiency. If a system is near the end of its service life, failing repeatedly, or driving high energy bills, replacement often costs less over time than continued repairs. We give you an honest assessment either way. If a repair still makes sense, we will tell you, and you can review our commercial HVAC repair options.
How do you size a commercial HVAC system for my building?
We run proper load calculations that account for your building's size, layout, occupancy, insulation, window exposure, internal heat loads, and usage patterns. Correct sizing matters because an oversized system short-cycles and wastes energy while an undersized one cannot keep up. We design to your actual load, not a rough estimate based on square footage alone.
How long does a commercial HVAC installation take?
It depends on the size and complexity of the project. A single rooftop unit replacement can often be completed in a day, while a chiller replacement or a full multi-system install takes longer and may be phased. During the proposal stage we give you a realistic timeline and schedule the work to minimize disruption to your operations.
Will the installation disrupt my business operations?
We plan around your operations. For occupied buildings we schedule phased or after-hours work, stage equipment to keep critical areas running, and coordinate closely with your team so tenants and staff feel as little impact as possible. Minimizing downtime is part of how we plan every installation.
What HVAC brands and system types do you install?
We install rooftop packaged units, split systems, chillers, boilers, VRF and VRV systems, heat pumps, make-up air units, and building automation controls from every major manufacturer, including Carrier, Trane, York, Lennox, Rheem, Goodman, and Daikin. We help you choose equipment based on your building, budget, and efficiency goals rather than pushing a single brand.
What happens after installation is complete?
We test, balance, and commission the system to manufacturer specifications, register the warranties, and give you full documentation for your records. From there we back the installation with ongoing service and can set up a preventive maintenance plan that protects your investment and keeps warranties valid.

Plan Your Commercial HVAC Installation With Kahn

From load calculation to commissioning, one accountable team across Dallas-Fort Worth since 1974.