Residential Service

AC & Heating System Installation
in Midland, TX

Right-Sized · Code-Compliant · Manufacturer-Commissioned

GenMech HVAC installs new AC, furnace, and heat pump systems in Midland, TX. Family and veteran-owned, 30+ years of experience. We size every system with a Manual J load calculation, install to code, and commission per manufacturer spec. No oversized systems, no shortcuts, no upsells.

Right-Sized
Systems
Veteran-Owned
& Operated
30+ Years
Experience
Code-Compliant
Installs
Manufacturer-Certified
Techs

Installation Done Right the First Time

The biggest mistake in residential HVAC is an oversized system. It costs more upfront, runs short cycles, removes less humidity, and dies sooner. We start every installation with a Manual J load calculation, then match equipment to your home’s actual heating and cooling load. Every install gets a permit when one is required, and every system gets a manufacturer-spec commissioning before we leave.

Planning a replacement? Call for a free in-home assessment. We will measure your home, inspect the existing equipment and ductwork, run the load calculation, and quote the job in writing. No pressure, no upsell. (432) 528-8905.

Residential System Installation Services

From a single AC replacement to a full AC plus furnace overhaul, GenMech HVAC installs every kind of residential heating and cooling system across Midland and the Permian Basin.

Most Common

Central AC System Installation

New central air conditioning installation matched to your home’s load. Variable-speed and high-SEER options for long-term efficiency. We install Trane, Rheem, Bryant, and Lennox.

  • Manual J load calculation
  • Equipment matching
  • Refrigerant line set replacement
  • EPA-certified startup
Heat & AC Combined

Heat Pump Installation

A heat pump handles both heating and cooling on one system. Best for moderate climates and homeowners who want one piece of equipment instead of two.

  • Heat pump system sizing
  • Auxiliary heat strip integration
  • Defrost cycle commissioning
  • SEER/HSPF performance verification
Heating

Gas Furnace Installation

Natural gas and propane furnace installation, sized for your home’s heat loss, vented to code. We pull the permit, file the paperwork, and pass inspection.

  • Manual J heat loss calculation
  • Combustion air & venting
  • Gas line connection
  • Permit & inspection coordination
Heating

Electric Furnace Installation

Electric furnace installation for homes without gas service or as a heat pump’s auxiliary heat source. Sized to your electrical service.

  • Heat strip sizing
  • Electrical service evaluation
  • Breaker & disconnect installation
  • Performance test
Indoor Air

Air Handler & Coil Replacement

Indoor air handlers and evaporator coils paired correctly with the outdoor unit. A mismatched indoor unit kills system efficiency and warranty coverage.

  • Coil & air handler matching
  • Refrigerant line flush
  • Drain pan & line set
  • Performance verification
Whole-Home

Complete System Replacement

Full AC + furnace replacement when both are aging. Coordinated equipment, refrigerant lines, ductwork inspection, and one permit. We handle the whole job.

  • Coordinated AC + furnace install
  • Ductwork inspection & seal
  • Single permit & inspection
  • 10-year manufacturer warranty registration

Signs Your System Needs Replacement

Repair or replace is rarely a clean call. When the math tips toward replacement, the signs usually show up months in advance. If you are seeing any of these, it is time for a free in-home assessment.

Your system is over 15 years old. Modern AC and heat pump units last 12 to 18 years. Once you cross 15, repair costs start to compound and efficiency drops below current code minimums. Replacement starts to make financial sense.

Repair costs are climbing. A single big repair on an aging system is one thing. Two or three repairs in 18 months is the system telling you it’s ready to be replaced.

Your energy bills keep going up. A system losing efficiency works harder and costs more. A new high-SEER system can cut cooling costs significantly in West Texas summers.

Some rooms are hot, others are cold. Uneven temperatures usually point to a system that was the wrong size for the home, or ductwork that was never balanced. Replacement is the chance to fix both.

Your AC uses R-22 refrigerant. R-22 production was banned in 2020. Refrigerant for older R-22 systems is now expensive and supply is unreliable. Repair stops being practical.

The system runs constantly but never hits the thermostat. A system that can’t keep up is undersized, broken, or both. We diagnose first, but persistent under-performance often signals end of life.

How an Installation Works

A GenMech HVAC installation is built on right-sizing, code compliance, and proper commissioning. Here is what every project looks like, from your first call to final inspection.

  1. 1

    Free In-Home Assessment

    We measure your home, inspect existing equipment and ductwork, and ask about comfort issues. No pressure, no upsell.

  2. 2

    Manual J Load Calculation

    Right-sizing starts with the math. Square footage alone doesn’t tell us what your home actually needs. We run the calculation properly.

  3. 3

    Honest Equipment Recommendations

    Multiple options at multiple price points, with the trade-offs explained. No pressure, no upsell, real numbers in writing.

  4. 4

    Code-Compliant Install & Full Commissioning

    Permits pulled, system installed to manufacturer spec, performance tested before we leave. Warranty registered in your name.

Why Homeowners Pick GenMech HVAC

A new HVAC system is a 5-figure decision that lasts 15 years. Here is why Midland homeowners trust GenMech with theirs.

Right-Sized, Not Oversized

Most contractors guess at sizing. We run a Manual J load calculation on every install. Smaller systems run longer cycles, remove more humidity, and last longer.

Veteran-Owned & Family-Operated

Founded in 2008 by a U.S. military veteran. Locally owned, locally accountable. The same name on the truck for 30+ years.

Permits, Inspections, and Paperwork

We pull every permit a job requires and coordinate inspections directly with the city. You don’t deal with paperwork.

Manufacturer-Spec Commissioning

Every install gets refrigerant charge verification, airflow measurement, and performance testing. We register your warranty before we leave.

Installation Service Areas

GenMech HVAC installs new residential systems across Midland, Odessa, and the surrounding Permian Basin. Installations are scheduled in advance, not same-day, so we can prep equipment, pull permits, and coordinate the right crew for your project.

Midland, TX

Standard Service

Odessa, TX

Standard Service

Greenwood & Stanton

Scheduled Installation

Big Spring & Permian Basin

Scheduled Installation

Installation FAQs

How do you size a new AC or furnace?

We run a Manual J load calculation on every install. It accounts for your home’s square footage, insulation, window count and orientation, ceiling height, and local climate. Square footage alone is not a reliable sizing method, and oversized systems short-cycle, leaving humidity behind in summer.

How long does a typical installation take?

A standard AC or furnace replacement takes one full day. A complete AC plus furnace replacement takes one to two days. We confirm the schedule when you accept the quote, and we work continuously until the job is done. No 4-hour windows.

Do you pull permits for the installation?

Yes, on every job that requires one. We file the permit with the city, schedule the inspection, and pass it before final commissioning. You receive copies of all permits and inspection records when the job is complete.

What brands do you install?

GenMech HVAC installs Trane, Rheem, Bryant, and Lennox as our primary brands. We also install Carrier, Goodman, American Standard, and York on request. Every brand we install carries a 10-year manufacturer parts warranty when registered at the time of commissioning.

What is the typical cost of a new HVAC system?

Costs depend on system type, size, efficiency, and ductwork condition. A standard residential AC replacement in Midland generally falls in a wide range, and a complete AC plus furnace replacement is higher. We quote every job in writing after the in-home assessment and Manual J load calculation.

Schedule Your Free In-Home Assessment

New AC, furnace, or full system replacement. Call (432) 528-8905 or request a free quote online. We will measure your home, run the load calculation, and quote the job in writing.