Air Duct Cleaning in Nampa, ID — From 1920s Bungalows To New Builds Off Greenhurst.
Nampa has some of the oldest houses in the Treasure Valley and some of the newest, and almost none of them have had the ductwork cleaned. We clean the entire system — trunk lines, plenums, every supply and return, the furnace coil — then sanitize it and show you the inside on camera. One price by square footage, and it is the same price in Nampa as it is in Boise.
Nampa Has A Hundred Years Of Houses. The Ducts Tell You Which Decade.
Nampa roughly doubled in size between 2000 and today, but unlike Meridian it did not start from scratch — the city has a real downtown, a real post-war grid and a lot of farmhouses that were here before the subdivisions. Each era has its own ductwork, and each one fails in its own way.
The Old Nampa Original (1900s–1940s)
What we find: Craftsman bungalows and two-story foursquares, most of them retrofitted with forced air decades after they were built. Gravity-furnace leftovers, odd-sized rigid trunks in the basement, and floor registers that have been swallowing things since the Depression.
What we do about it: A full camera inspection comes first, because we regularly find disconnected joints and abandoned runs. Then the rigid metal gets agitated back to the truck section by section. Old galvanized duct cleans beautifully once you can actually reach it.
The Post-War Ranch (1950s–1980s)
What we find: This is the largest share of Nampa housing, and the most neglected. Single-story ranches and split-levels with the original trunk in the crawlspace or basement, forty to seventy years of buildup, and in a lot of cases a wood or pellet stove that has been adding soot to the mix every winter.
What we do about it: These are the jobs where the collection bag fills. We open the trunk, pull the whole system under negative air, clean the coil (often for the first time since the furnace was replaced) and sanitize, then show you the before-and-after side by side.
The Subdivision Era (1995–today)
What we find: Flex duct in the attic, two-story floor plans with returns upstairs, and — in anything built since 2015 — construction debris sealed in before move-in. The newer Southside and North Nampa builds are frequently the dirtiest homes we see in a week.
What we do about it: Whole-system suction from the truck moves debris in the attic flex toward the vacuum instead of deeper into the runs. We start at the trunk where the heavy material sits, work every branch, then finish with the plenums and the coil so the hot-dust smell on the first cold morning is gone.
Canyon County Air Is Working Against Your Ducts All Year
Nampa sits lower in the valley than Boise, surrounded by working farmland, with a sugar plant and feedlots close enough to smell. All of it ends up inside the ductwork eventually.
- Field and harvest dustOnions, sugar beets, corn, hay and dairy operations ring the city. Harvest season puts fine soil in the air for weeks, and it settles in the trunk lines as fast as the furnace can pull it in.
- The bottom of the inversionWinter inversions trap cold, dirty air under a warm lid, and Canyon County is near the bottom of the bowl. The furnace runs hardest during exactly the weeks the outdoor air is worst.
- Wildfire smokeLate-summer smoke parks over the valley for days at a time most years. The particulate is small enough to get past a standard filter and coat the inside of the coil and the plenums.
- Wood and pellet stovesFar more common in Nampa's older neighborhoods than in the newer Boise-side suburbs. A stove adds a season of fine soot to the returns every year, and it is the first thing you smell when the furnace kicks on in October.
Nampa Neighborhoods We Are In Every Week
Nampa is a regular part of our route, not a long drive we charge extra for. ZIP codes 83651, 83686 and 83687 — from the Karcher corridor on the west side to the Idaho Center on the north, and from the depot district down to Lake Lowell. Here is what we typically find where.
Historic Downtown & Old Nampa1900s–1940s
The depot district, Lakeview Park and the tree-lined streets around Northwest Nazarene University. Bungalows and foursquares with retrofitted forced air and basement trunks. Camera inspection first, always.
The Post-War Grid1950s–1980s
Roosevelt Avenue, the numbered avenues north and south of the tracks, Sunnyridge and the older streets toward Ridgecrest. Rigid metal duct, crawlspace trunks and decades of buildup — the best before-and-after photos in the city come from here.
Karcher Road & Midland Boulevard1990s–2010s
West Nampa's big wave of subdivisions. Two-story homes hitting 20 to 30 years old, attic flex to the upstairs bedrooms, and for most of them our visit is the first professional cleaning the system has ever had.
North Nampa & The Idaho Center2000s–today
Garrity Boulevard, Franklin, the neighborhoods around the Ford Idaho Center, CWI and St. Luke's. Newer two-stories and larger homes, a lot of them on two furnaces.
Greenhurst & Southside2015–today
The most active construction in Nampa. Fresh drywall dust and builder debris sealed inside brand-new ductwork is the norm, and a first cleaning at year two or three is the single best thing you can do for a new furnace.
Lake Lowell & The Acreagesmixed
Lake Lowell Avenue, Southside Boulevard and the county roads toward Deer Flat. Farmhouses, shop-houses and larger custom homes on acreage — long duct runs, wood stoves and, often, two systems.
Sunnyridge, Iowa Avenue, Orchard, Amity, 12th Avenue Road, the airport side of town — if you are in Nampa, we are already working within a few minutes of you. Do not see your area? Call (986) 386-4495.
Own rentals in Nampa? See our property manager & HOA pricing →
The $79 Facebook Special Is Not A Duct Cleaning. It Is A Sales Call.
Nampa homeowners get hit harder than most by the cheap ads — Facebook Marketplace, Craigslist, door hangers on the older streets — because older homes are easy to "find a problem" in. Here is how those visits go, according to the Nampa customers who call us afterward.
- The $79 to $149 "whole house" price gets a van in the driveway. A portable vacuum and a spinning brush clean the first few feet inside each register — the part you could reach with a shop-vac yourself.
- In an older Nampa home the technician "finds mold," "finds asbestos" or "finds a cracked plenum," and the ticket jumps to $900 or more. Scaring you inside your own basement is the whole business model.
- The trunk lines, the plenums and the coil — where the actual weight of debris is — are never opened. Nothing is sanitized. Nothing goes on camera, because there is nothing they want you to see.
- Our price is set by square footage before we leave the shop. We open the trunks, clean every branch under 14,000+ CFM of truck-mounted suction, clean the coil, sanitize, and put the before-and-after on camera. The number you were quoted is the number you pay.
See every duct cleaning scam we run into in the Treasure Valley →
Here Is The Whole Job. None Of It Is An Add-On.
If a company has to list these as "options," they are not doing a whole-system cleaning. This is the standard job, at the standard price.
Nampa Pricing On The Homes We Actually Clean Here
$0.30 per square foot of living space. Below is what that works out to on the Nampa homes we see most often, so you can find yours before you ever call.
single system, rigid metal duct1,300 sq ft$390
single system, basement trunk1,700 sq ft$510
single system, attic flex upstairs2,000 sq ft$600
single system, first cleaning since construction2,300 sq ft$690
two furnaces — second system is $2493,200 sq ft$960 + $249
Do not know your square footage? Give us the address and we will pull it. Wondering why we are not the cheapest number in Nampa? Here is exactly what the difference buys →
Five Steps, Same Order, In Every Nampa House
A 1925 bungalow by the depot and a 2024 build off Greenhurst get the exact same process. Only the amount that comes out changes.
Camera first
Before anything is touched, a camera goes into the trunk and the returns so you can see the actual condition — and so we can spot disconnected or damaged runs in an older Nampa home before we put suction on them.
Set up and protect
Registers come off and get bagged, floors around the furnace and the crawlspace hatch are covered, and the truck is parked at whichever side of the house gets the hose to the furnace shortest.
Clean under negative air
The truck pulls 14,000+ CFM on the whole system. Every supply and return branch is agitated back toward the trunk, the trunks and both plenums are opened and cleaned, and the coil is cleaned last so nothing lands on it afterward.
Sanitize the system
A botanical, hospital-grade sanitizer is fogged through every line to deal with bacteria, mold spores, stove soot odor and pet smell. No bleach, nothing to air out.
Camera again
Same lines, same angles, after. You see it on the spot, and the video is yours if you want it.
What Nampa-Area Homeowners Say After We Leave
Live from our Google profile as they come in — the good, the specific and the occasionally long-winded. Nothing here is hand-picked.
Also voted the #1 Nextdoor favorite across 87+ Treasure Valley neighborhoods, five years running. Find us on Nextdoor →
What Nampa Homeowners Ask Us Before They Book
Thirty cents per square foot of living space, whole system, and the price does not change once we are inside. A 1,600 sq ft Nampa home is $480. That covers every supply and return branch, the main trunk lines, both plenums, the furnace evaporator coil, hospital-grade sanitizing and a before-and-after camera inspection. A second furnace, if the house has one, is $249. Nampa is not priced any differently than Boise or Meridian.
Usually it is the best candidate on the street. Post-war Nampa ranches almost always have rigid galvanized duct, which is smooth and cleans extremely well — the problem is simply that nobody has ever done it, so there can be sixty years of dust, pet hair and whatever fell through the floor registers sitting in the trunk. We inspect it on camera first; if a section is disconnected or too deteriorated to clean, we show you that before we do anything else.
Yes and no. We work the Lake Lowell Avenue and Southside Boulevard acreages regularly, and the price is the same $0.30 per square foot as anywhere else in the valley. Bigger homes out there often run two furnaces — the second system is $249 and we tell you that when you book, not in your driveway.
Every Nampa builder says that, and every first cleaning we do on a two- to six-year-old home says otherwise. Drywall sanding dust, sawdust, insulation and packaging get into open ductwork during construction and get sealed in when the registers go on. Then the furnace runs for years pulling all of it through the coil. The first cleaning on a new build is usually the dirtiest one the house will ever need.
It helps with what has already collected inside your system, which is real: fine agricultural dust and smoke particulate coat the inside of the trunks and the coil, and every time the furnace kicks on, the house smells like the ductwork. Cleaning and sanitizing removes that layer. It cannot stop outside air from being outside air — for that, a better filter after the cleaning is the right next step, and we will tell you which size your furnace actually takes.
A single-system Nampa home is a few hours, usually a morning or an afternoon. Two furnaces take longer. You do not have to leave, and you do not have to move furniture; we pull and protect the registers ourselves and cover the floor around the furnace.
Part of the job. The evaporator coil is where fine dust ends up, and a coated coil makes your air conditioner work harder every summer. We clean it on every duct job and put it on camera so you can see it.
Yes. It is a botanical, hospital-grade sanitizer fogged through the system after the cleaning, not bleach and not a scented chemical mask. It addresses bacteria, mold spores and odor, and there is no chemical smell afterward.
Yes, and most Nampa customers add it. A dryer vent cleaning bundled with a duct cleaning is $49, roof or side-wall exit, and it includes replacing the dryer-to-wall connection for free if yours is crushed or torn. On its own, a Nampa dryer vent cleaning for a new customer is $119 for a side-wall exit or $149 through the roof ($96 for repeat customers) — details on our Nampa dryer vent page.
Also Serving The Towns Around Nampa
One crew, one truck, one price per square foot from Caldwell to Kuna.
Good reading before you book: the signs your ducts need it now, how often a Nampa home actually needs it, and what QUADCA certification checks for.
Want To See What Sixty Years Of Nampa Has Left In Your Ducts?
Send us the address and the square footage. We text back your exact Nampa price and the next open spot on the Canyon County route.