NADCA Source-Removal Standard

How We Clean Your Lewisville Home’s Air Ducts

Transparency is what separates legitimate duct cleaning from the $49 operations. Here is exactly what happens on a real cleaning job from the moment the truck arrives to the moment we leave — so you can verify the process is being followed.

12,000
CFM Suction
250 PSI
Compressed Air
2
Techs Every Job
3–7 hrs
Typical Lewisville Job
The Real Thing

Step by Step — What Happens on Every Job

Everything described here applies to every residential job — from a 1,400 sq ft Old Town cottage to a 3,800 sq ft Castle Hills two-story. Same equipment. Same methodology. Same documentation.

01

Written Quote First

Before any appointment is booked, you receive a written price for your home’s size, number of systems, and duct configuration. That price is confirmed and does not change on arrival. No on-site variables.

02

Arrival & Walkthrough

Two technicians arrive. Shoe covers on before entry. Drop cloths down. We walk every room, locate every supply register and return grille, inspect the air handler, and review scope with you. If anything changes the written quote, you hear about it before we start.

03

Negative Pressure Setup

The 12,000 CFM truck-mounted HEPA vacuum connects to your main trunk line via an 8-inch access hole. Full negative pressure throughout the entire duct network. Every run pulling toward the vacuum. Nothing gets blown around your home.

04

Individual Duct Agitation

Compressed air at 250 PSI through air rods, octopus whips, and forward/reverse heads — every supply and return duct run individually. Farthest registers first, working toward the trunk. Every run. Not just accessible ones near the registers.

05

Trunk Line & Air Handler

Main supply and return trunk lines cleared. Blower compartment and evaporator coil area cleaned and inspected. The coil is the primary mold growth site in Lake Lewisville area homes — mold documented with photos if found.

06

Registers, Sealing & Report

All registers removed, washed, reinstalled. All access holes sealed permanently with sheet metal and metal tape. Before-and-after photos. Written service report delivered before we leave. You see exactly what was there and what’s gone.

How Long Does It Take?

Job Duration by Lewisville Home Type

Home Type Systems Typical Vents Duration
Under 1,500 sq ft, single-story 1 8–12 2.5–3.5 hours
1,500–2,500 sq ft (typical Lewisville home) 1 12–18 3–5 hours
2,500–3,500 sq ft, two-story 2 18–26 5–7 hours
3,500+ sq ft, two-story 2 24–36 6–8 hours
Pre-1990 Old Town / Lewisville Valley (never cleaned) 1 10–16 4–6 hours
⚠️

If They Say Under an Hour — It’s Not Source Removal

If any company tells you they can clean a full home in under an hour, they are not doing source removal. Physically impossible at any vent count with legitimate equipment. The 3–7 hour range isn’t padding — it’s the time required to agitate every individual duct run correctly.

Questions

Process FAQ

Source-removal cleaning requires individually agitating every duct run — supply and return — from the farthest registers working toward the trunk. A typical Lewisville home has 12–18 individual duct runs. Each run requires tool insertion, agitation, and extraction time. Two technicians working simultaneously (one on the vacuum system, one on agitation) still require 3–5 hours for a thorough job on a single-system home.

For the initial walkthrough and final report delivery, yes. During the bulk of the cleaning itself, you can be home or away — the two technicians work the process systematically without needing guidance from the homeowner. We ask that someone is available at the start and end of the job to walk through the scope and receive the service report.

The 8-inch access hole is temporary — it’s sealed at completion with a sheet metal patch and professional-grade metal tape, creating a permanent airtight seal. The hole is functional, not cosmetic damage. The small 1-inch access holes at individual duct runs are sealed with metal plugs and tape and are not visible after completion.

Ready to Book? Here’s What Happens Next

Call or request a quote. We provide a written price for your home. You schedule at your convenience. We show up with the truck.

  • Written Quote First
  • Two Techs Every Job
  • NADCA Source-Removal
  • Before-After Photos