Inside the house.
Each service has its own page: what it involves, how it's done, and how long it takes.
Where the dust goes.
A house can look clean and still feel stale. What vacuuming misses settles in four places, and the heating and cooling system keeps stirring it back up.
The ductwork
Dust, pet hair and debris line the supply and return ducts and blow back out of the registers every time the system runs. Air duct cleaning
The dryer vent
Lint that gets past the trap builds up between the dryer and the outside hood. It’s a fire risk as much as an efficiency one. Dryer vent cleaning
Carpets, rugs and furniture
Carpets don’t create allergens, they store them: dust, pollen and dander sink into the fibers until airflow lifts them back out. Carpet, rug & upholstery cleaning
Tile and grout
Grout is porous. Dust, allergens and grime settle into the lines and darken them in a way a mop can’t reach. Tile & grout cleaning
How often each one needs it.
They run on different clocks. A dryer vent can clog in months; ductwork takes years. Pets, allergies, heavy traffic and renovation work shorten all of them.
Cleaning one while the others stay dirty only goes so far — clean carpets under dusty ducts get dusty again. That’s why these jobs are often booked together.
Typical intervals
- Dryer ventsEvery 6–12 months, depending on how much the dryer runs.
- CarpetsEvery 12–18 months; sooner with pets, allergies or heavy foot traffic.
- Area rugsEvery 3–18 months, from entryways to low-traffic rooms.
- Air ductsEvery 3–5 years (NADCA); sooner after renovation or water damage.
Dust, or mold?
From the register, they look alike.
Recent interior jobs.
Real homes, real photos — each one written up start to finish.
Before you book.
Longer answers to the questions people ask before they call.
How Often Should Air Ducts Be Cleaned?
How often should air ducts be cleaned to improve HVAC efficiency and air quality? Our top rated air duct cleaning team on Long Island gives expert advice.
Read the guide →
How Often Should Dryer Vent Cleaning Be Done?
Learn how often to clean your dryer vent to stay safe and efficient. Trusted Suffolk County pros — schedule your service with K.O.S. Cleaning today!
Read the guide →
Can Carpet Cleaning Actually Improve Indoor Air Quality?
Professional carpet cleaning can improve indoor air quality by removing dust and allergens trapped deep in carpet fibers. Learn how it works.
Read the guide →
Why Tile and Grout Cleaning Matters
Learn why tile and grout cleaning matters for your health. K.O.S. Cleaning offers top rated cleaning services on Long Island. Free estimates.
Read the guide →
Frequently asked questions
Straight answers on what's included, timing and estimates.
What does interior cleaning include?
Air duct cleaning, dryer vent cleaning, carpet and area rug cleaning, upholstery cleaning, and tile and grout cleaning. It's the deep cleaning a household vacuum and mop can't reach.
Is this a house cleaning or maid service?
No. We don't do housekeeping. Interior cleaning here means the systems and surfaces that need professional equipment: ductwork, dryer vents, carpets, rugs, furniture and grout.
How often should air ducts be cleaned?
Every 3 to 5 years for most homes — the National Air Duct Cleaners Association guideline. Sooner with pets, after renovation work, or after water or mold damage.
Does carpet cleaning improve indoor air quality?
It can. Carpets trap dust, pollen and pet dander deep in the fibers, and the heating and cooling system lifts them back into the air. Hot water extraction removes what vacuuming leaves behind. It works best alongside duct and upholstery cleaning.
Can I book more than one service?
Yes. List everything on the quote form and one free estimate covers it all.
Do you give free estimates?
Yes, with no obligation and no hidden fees. Use the form below or call.
Get a free interior cleaning quote.
Real person · free estimates · no obligation
Call for a quote(631) 560-8999