Air Duct Cleaning Services in Exeter, NH
Most Exeter homeowners pay between $320 and $580 for a complete residential air duct cleaning, with typical jobs finished in three to four hours. Bellows Air Duct & Vent Co. has worked in Exeter since 2012, and we usually book appointments within two to three business days. Call (844) 685-6342 to speak with a live person, any hour.
Exeter sits at the head of tide on the Squamscott River, and that riverfront humidity works its way into homes differently here than in neighboring towns. We’ve cleaned ducts on Water Street, along Front Street, and up toward the Phillips Exeter Academy grounds long enough to know the patterns. Older homes with stone foundations pull damp air through crawlspaces and into ductwork. Newer construction near Route 108 deals with tighter envelopes but the same seasonal swings. Wherever you are in 03833, the problem is familiar: dust, allergens, and musty circulation that never quite clears.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Exeter Homeowners Choose Bellows Air Duct & Vent Co.
We’ve been called back to the same Federal-era homes on Lincoln Street more than once, not because the job failed, but because the homeowner sold to family who wanted the same thoroughness. That kind of repeat relationship is how Bellows has worked in Exeter for over a decade. No call centers. No bait coupons. When you phone (844) 685-6342, a live person answers, 24 hours a day.
Our technicians are background-checked and uniformed, and they arrive with Rotobrush and Nikro equipment that serious HVAC contractors specify. Every job starts and ends with a camera inspection. You see what we see: the debris before, the clean metal after. The price we quote on the phone is the price on the invoice. Our 90-Day Done Right Promise means if something isn’t right, we return at no charge. No paperwork to file, no argument.
We serve homes throughout the historic downtown core, along the riverfront, and in the neighborhoods near Swasey Parkway. Whether your house dates to 1780 or 1980, the approach is the same: inspect, document, clean, verify.
Air Duct Cleaning Services We Offer in Exeter
Air Duct Cleaning
We clean the full supply and return duct network, from the main trunk lines to the branch runs feeding each room. In Exeter’s older homes, this often means navigating irregular retrofit ductwork squeezed through original framing, not the straight runs found in modern construction. Learn more about our Air Duct Cleaning in Exeter.

Dryer Vent Cleaning
Lint accumulation in dryer vents is a leading cause of house fires, and Exeter’s humid summers make lint stickier and harder to dislodge. We clean the full vent run with professional brushes and high-velocity air tools, then verify airflow with a meter. Learn more about our Dryer Vent Cleaning in Exeter.

HVAC Cleaning
The blower, evaporator coil, and plenum collect debris that standard duct cleaning alone won’t address. We use Honeywell-specified techniques to clean these components without damaging sensitive fins or electronics. Learn more about our HVAC Cleaning in Exeter.

Duct Repair & Sealing
Disconnected joints, crushed flex duct, and deteriorated sealing tape waste heated and cooled air while pulling in basement or attic contaminants. We repair and seal with materials rated for the temperature swings Exeter ducts endure. Learn more about our duct repair and sealing services.

Air Quality & Sanitizing
For homes with persistent musty odors or allergen sensitivity, we apply EPA-registered sanitizers after mechanical cleaning. This is not a substitute for removing the source, but it addresses biofilm that mechanical brushing alone cannot reach. Learn more about our air quality and sanitizing services.

Neighborhoods We Serve in Exeter
We work throughout Exeter’s 03833 ZIP code, with most appointments scheduled within two to three days of your call. These are the areas we know best:
- Historic Downtown / Water Street corridor - Federal and colonial homes with stone-foundation basements and retrofit ductwork
- Phillips Exeter Academy vicinity - larger vintage homes and faculty residences with complex HVAC additions
- Swasey Parkway / Front Street area - riverfront properties with elevated humidity challenges
- Route 108 / Epping Road corridor - mid-century and newer construction with different duct configurations
Why Exeter’s Climate & Housing Affect Air Duct Cleaning
Exeter’s position at the head of tide on the Squamscott River creates a persistently elevated humidity profile unusual for an inland New Hampshire community. That tidal moisture, combined with a housing stock heavy on 18th- and 19th-century construction, produces a specific problem pattern we’ve documented across dozens of Exeter jobs.
The colonial, Federal, and Victorian-era homes around the historic downtown core were never designed for forced-air HVAC. Ductwork was added decades later, often routed through damp stone-foundation basements and unvented crawlspaces. The original stone foundations wick tidal groundwater moisture directly into the air the ducts pull from. Technicians working near Water Street consistently find duct interiors carrying a mildewy odor traceable to that basement environment, even when the mechanical equipment itself is relatively modern.
Cold New Hampshire winters drive additional condensation in poorly insulated duct runs passing through unheated crawlspaces. By spring, that cycle of summer humidity and winter condensation has compounded debris accumulation and biofilm growth. Cleaning these systems requires more than standard brush work. It demands inspection of the full pathway, attention to insulation condition, and sometimes recommendations for sealing or repair that newer homes simply don’t need. We’ve learned to spot the signs: rust at duct seams in basements, musty air returning after filter changes, dust patterns that suggest air is being pulled from wall cavities rather than conditioned space.
Pricing for Air Duct Cleaning in Exeter
We disclose pricing before work begins. No surprises, no price changes at the door.
| Service | Typical Range in Exeter |
|---|---|
| Standard residential air duct cleaning (single system, up to 12 vents) | $320 - $480 |
| Larger homes or dual-zone systems (13-20+ vents) | $480 - $580 |
| Dryer vent cleaning (standalone service) | $120 - $180 |
| HVAC component cleaning (blower, coil, plenum) | $180 - $320 |
| Duct repair or sealing (per linear foot or section) | $150 - $400 |
| Air quality sanitizing treatment (after cleaning) | $95 - $150 |
These ranges reflect the additional time and access challenges common in Exeter’s older housing stock. Tight crawlspaces, irregular duct routing, and moisture-related buildup all factor into the scope. We’ll give you a firm quote after a brief phone conversation about your home’s size, system type, and any specific concerns. Call (844) 685-6342 for a free estimate.
Standing offers: $50 off any repair over $250. Free second opinion on any written estimate. $89 seasonal tune-up. Permanent 5% senior and veteran discount.
Service Area - Cities Near Exeter
We work throughout the Seacoast region and southern New Hampshire. Homeowners in Kingston, Seabrook, Amesbury, and Merrimac can expect the same scheduling priority and pricing transparency we offer in Exeter. Same live-answer phone line, same camera-verified process, same 90-Day Done Right Promise.
Serving Exeter, NH - Our Local Coverage Area
We’re based in the Exeter area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Exeter
Most Exeter homeowners pay between $320 and $480 for a standard single-system cleaning with up to 12 vents. Larger homes or dual-zone systems typically run $480 to $580. The age and accessibility of your ductwork, common in Exeter’s pre-WWII housing stock, can affect the final scope. Call (844) 685-6342 for a free, exact quote before we schedule.
Every three to five years for most homes, though Exeter’s tidal-river humidity and older stone-foundation construction can accelerate mold and allergen buildup. If you notice musty odors when the system runs, visible dust at vents, or worsening allergy symptoms, an inspection makes sense regardless of the calendar. We include camera documentation so you can decide based on what we find, not a sales pitch.
The Squamscott River’s tidal reach elevates ambient humidity in Exeter beyond what inland ZIP codes typically experience. In older homes with stone or fieldstone basements, that moisture wicks into ductwork routed through damp, unvented crawlspaces. Dust and biofilm accumulate in the resulting humid environment, and the first blast of air each season carries that odor through the house. Cleaning removes the buildup; inspection identifies whether sealing or insulation improvements are also needed.
Repair and sealing is almost always the more economical path for Exeter’s vintage homes, since full replacement would require disturbing original plaster, trim, and framing that wasn’t designed around ductwork. We typically address disconnected joints, crushed sections, and deteriorated tape for $150 to $400, versus thousands for a full retrofit. If your ducts are structurally intact but leaking, sealing with mastic and proper tape restores efficiency without the demolition. We’ll show you the camera footage and recommend accordingly.
We usually book within two to three business days, and we keep slots open for urgent situations like post-renovation dust or suspected mold. Calls are answered by a live person 24 hours a day at (844) 685-6342. Same-day service is sometimes available depending on route and urgency.
Written by the team at Bellows Air Duct & Vent Co., serving Exeter and the Seacoast since 1984.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within same-day.
- 4You approve before work beginsNothing starts until you say go.
What Bell Customers Say
"Showed up fast, fixed it right the first time, and the price matched the quote. Couldn't ask for more."
- Verified local homeowner"Professional from the first call. Explained everything clearly and left the area spotless."
- Verified local homeowner"Called in the morning, problem solved by afternoon. Honest, upfront pricing - highly recommend."
- Verified local homeowner