L Seven "N" Company, Inc.

Santee, California 92071
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Our Story

Breathe Clean Air!Your Air Duct Cleaning Professionals - Kitchen Grease Exhaust Hood SystemsResidential * Commercial!

Clean Your Heating and Air Conditioning System
For more healthy and safe living or working environment.

Poor air quality could be a result of mold, bacteria, dust, dirt, or condensed smoke particles in you heating and air-conditioning system!

  • Cleans and Freshens Air
  • Eliminates Mustiness and other Odors Caused by Smoke, Pets, Food
  • Relieves Allergic Symptoms Due to Dust, Mold, and Mildew
  • Prevents Spread of Disease via Airborne Bacteria and Viruses, Legionnaire's Disease, and Hypersensitivity Pneumonitis, and Illness with Flu-Like Symptoms


Additionally, we will save you money by reducing heating and air conditioning costs. Your system will operate more efficiently when cleaned. The Environmental Protection Agency, many medical associations, and allergy doctors recommend cleaning heating and air conditioning systems for healthy preventive maintenance to guard your health.

What We Do

Products and Services

Blue Book Network Classifications

We can be found under the following Blue Book Network Classifications.

CSI Codes

Commercial Construction Project Specializations

Hospital / Nursing Home

Company Information

Year Established:
Labor Affiliation:
Non-Union Prevailing Wages (Davis-Bacon)
Annual Volume:
Company Size:
Not Provided Request
Service Sector:
Public Private
Typical Project Size:
Not Provided Request
Project Types:
Not Provided Request

Associations & Memberships

ASCS (Air Systems Cleaning Specialist)
CMR (Certified Mold Remediator)
MWBE (Minority Women Business Enterprise)
NADCA (National Air Duct Cleaners Assn.)
SBE 8(a) (Small Business Enterprise)
SWBE 8(a)

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