HVAC Services

Heating and cooling that keeps up with Houston.

Typical timeline: 2–5 days
HVAC Services
New system installs, changeouts, and repairs for central AC, heat pumps, furnaces, and mini-splits. We size the system with a Manual J load calc, install to code, and pull permits so you get real efficiency and a system that lasts.

Materials

What we install vs. what corner-cutters use.

Equipment

What we install

Carrier, Trane, or Mitsubishi — properly Manual-J sized for the specific home.

Common shortcut

Whatever the supply house has on the truck, oversized to "be safe."

Why it matters: Oversized systems short-cycle, never dehumidify, and die early. Sizing is engineering, not guessing.

Ductwork

What we install

Sealed and insulated hard-pipe trunks with flex only at final runs, mastic-sealed joints.

Common shortcut

All-flex spaghetti, taped joints that leak 20%+ of conditioned air into the attic.

Why it matters: You can install the best equipment in Houston and still get a $500 summer bill if the ducts leak.

Refrigerant lines

What we install

New line set with proper braze, nitrogen purge, and micron-level vacuum before charge.

Common shortcut

Reused line set, no vacuum — moisture and non-condensables kill the compressor in year 3.

Why it matters: 90% of premature compressor failures trace back to a bad vacuum or dirty line set.

Thermostat & controls

What we install

Ecobee or Nest with remote sensors, condensate safety switch, MERV 13 filter cabinet.

Common shortcut

Basic non-programmable stat, no safety switch — first clogged drain floods a ceiling.

Why it matters: A $30 safety switch prevents a $5,000 drywall repair.

Process

A predictable path — with real durations.

1

Load Calculation

1–2 days

Manual J sizing based on square footage, insulation, windows, and orientation.

2

Equipment Selection

1–2 days

Match system type and tonnage to your home and goals.

3

Removal & Install

2–4 days

Recover refrigerant, remove old equipment, set new indoor/outdoor units.

4

Duct Modifications

1–2 days

Adjust returns and supplies, seal joints, and add zones if needed.

5

Startup & Commissioning

1 day

Charge refrigerant to spec, verify airflow, and program the thermostat.

Customer projects across Houston

Drag to reveal the hvac services transformation.

Recent hvac services projects from neighborhoods across the Houston area. Drag the slider on each image to see the before and after.

The Heights · HVAC Services — afterThe Heights · HVAC Services — before
Before
After
The Heights · HVAC Services
Project 1 of 10The Heights, Houston

Why us

Why homeowners pick Modern Builders for hvac services.

Most HVAC failures are install failures—wrong size, undersized returns, leaky ducts. We do it right: proper load calc, sealed ductwork, correct refrigerant charge.

FAQs

Answers before you ask.

Heat pump or gas furnace?+

Heat pumps are more efficient in most Southern California climates and qualify for utility rebates. We'll model both.

Do you handle permits?+

Yes—every changeout is permitted and inspected.

What warranty do I get?+

10-year parts warranty from the manufacturer and our 2-year labor warranty.

Can you add zoning?+

Yes—dampered zoning or ductless mini-splits per room are both options.

Related reading

Go deeper before you decide.

Get a quote — we do it right.

Fixed-price proposals, real timelines, no corners cut. Tell us about your hvac services project.

Request your quote