Fast, Reliable Air Duct Cleaning Across Exeter
Air duct cleaning in Exeter, NH typically runs $350-$650 for a full residential system and is usually completed in a single visit with same-day scheduling available. Bellows Air Duct & Vent Co. has served homeowners in Exeter and the Seacoast region for over 42 years, and our crews know the tight clearances, stone basements, and retrofitted ductwork that define this town’s older housing stock.
We answer calls around the clock, and most Exeter appointments are set within 24 hours. Whether you’re in a colonial near the historic downtown core, a Victorian off Front Street, or a newer build toward the west side of 03833, our technicians arrive with equipment sized for your home’s access constraints. Call (844) 685-6342 for a free estimate. We’ll be there when we say.
Why Bellows Air Duct & Vent Co. Is Exeter’s Preferred Air Duct Cleaning Company
Exeter homeowners don’t call us for coupons. They call because their neighbor did, or because they got tired of a musty smell every time the furnace kicked on, or because they finally want the job done right and never thought about again.
Our reputation here is built on showing up. Background-checked, uniformed technicians. A live person answering the phone at midnight, not an app or a voicemail tree. Camera inspection before and after every clean, so you see what we see. And our 90-Day Done Right Promise in writing: if it’s not right, we make it right, no paperwork, no arguing.
We’ve cleaned ducts in homes along Water Street where the Squamscott River’s tidal reach keeps basement humidity stubbornly high. We’ve worked the narrow attic chases of Federal-era houses near the Phillips Exeter Academy campus. We know that Exeter’s ZIP code, 03833, sits at the head of tide, and that matters for what’s growing inside your ducts.
Most Exeter jobs are completed in one visit. Pricing is disclosed before we lift a single tool. The number on the phone is the number on the invoice.
Our Air Duct Cleaning Services in Exeter
Residential Duct Cleaning
Exeter’s housing stock skews heavily pre-WWII, and that’s not a footnote for us, it’s the job. Colonial, Federal, and Victorian-era homes in and around the historic downtown core were never designed for forced-air HVAC. Retrofit ductwork runs through cramped original framing, uninsulated attic chases, and moisture-prone fieldstone basements. Our residential cleaning accounts for these constraints: rotary brushing systems that navigate irregular joints, HEPA containment so we don’t blow decades of dust into your living spaces, and pre-inspection cameras that spot biofilm colonies before we start. A typical residential duct cleaning in Exeter runs $350-$550 for a single-system home.
Commercial Duct Cleaning
Exeter’s commercial base, from the shops along Water Street to offices near the Route 111 corridor, needs scheduled cleaning that doesn’t interrupt business hours. We work evenings and weekends, contain our equipment to minimize footprint, and provide written documentation for property managers and insurance carriers. Commercial pricing in Exeter starts around $800 for smaller retail or office systems and scales with square footage and access complexity.
Supply Duct Cleaning
Supply ducts push conditioned air into your rooms. In Exeter’s older homes, these lines often pass through unheated crawlspaces or damp stone basements where condensation and mold take hold. We isolate each supply branch, apply negative pressure at the trunk, and use rotary brushes to dislodge debris that static pressure alone won’t touch. Supply duct cleaning as a standalone service in Exeter typically runs $200-$350.
Return Duct Cleaning
Return ducts pull air back to the furnace, and they’re the first place we find heavy accumulation in Exeter homes. The return path draws from basements and crawlspaces where tidal humidity has kept dust mites and mold spores active year-round. Cleaning returns requires careful sealing so we don’t redistribute contaminants through the house. Return duct cleaning in Exeter generally falls between $180-$320.
Full System Cleaning
Most Exeter homeowners opt for full system cleaning, covering supply ducts, return ducts, trunk lines, and the air handler cabinet. This is where we catch the complete picture: the biofilm in the basement trunk, the debris packed into attic chases, the buildup on the blower wheel. Full system cleaning in Exeter ranges from $450-$650 for average-sized homes, with larger or more complex systems running higher. Every full clean includes before-and-after camera documentation.
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.
Trusted Brands We Service in Exeter
We clean and service ductwork connected to all major HVAC brands, and we stock common components for faster turnaround on repairs and sealing work. Our equipment comes from Rotobrush, Abatement Technologies, and Aprilaire, the same names serious HVAC contractors specify. For Exeter homeowners, that means no waiting on parts shipped from three states away. If your system uses Aprilaire media filters or Abatement Technologies containment gear, we’re already familiar with the specifications. And if your ductwork needs repair or sealing after cleaning, we carry the materials to complete it in the same visit.
Common Air Duct Cleaning Problems We See in Exeter Homes
- Tidal moisture wicking through stone foundations. Exeter’s location at the head of tide on the Squamscott River creates persistently elevated humidity that, combined with old stone-foundation basements common in pre-WWII homes, accelerates mold colonization in retrofit ductwork. Technicians who skip the stone-basement pre-inspection miss this moisture source, and cleaned ducts recontaminate within weeks.
- Narrow attic chases in retrofitted colonials. Ductwork squeezed through original framing often has sections inaccessible without partial disassembly. Rushing through these tight spaces leaves uncleaned debris that continues circulating into bedrooms and living areas.
- Biofilm embedded in irregularly routed retrofit ductwork. Using only negative pressure without rotary brushing fails to dislodge the sticky, mold-based film that coats duct interiors in humid basement environments. We see this failure mode regularly in homes where previous cleaners lacked the right equipment.
- Condensation in unheated crawlspaces during winter. Cold NH winters drive moisture accumulation in poorly insulated duct runs, compounding debris and biofilm growth between heating seasons. Spring cleaning appointments in Exeter often reveal significant buildup from this freeze-thaw cycle.
Pricing for Air Duct Cleaning in Exeter, NH
We’re upfront about numbers because that’s the square deal.
| Service | Typical Range in Exeter |
|---|---|
| Residential full system cleaning | $450-$650 |
| Supply duct cleaning only | $200-$350 |
| Return duct cleaning only | $180-$320 |
| Residential single-system standard clean | $350-$550 |
| Commercial duct cleaning | $800+ |
What moves the price: system size, number of supply and return vents, accessibility (tight crawlspaces and disassembly add time), and whether we find conditions requiring sanitizing or sealing. We inspect with cameras before quoting, so you know the full scope before we start. Estimates are free. Call (844) 685-6342.
Standing offers for Exeter homeowners: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% senior and veteran discount.
We Also Serve Cities Near Exeter
Our crews regularly work Air Duct Cleaning in Exeter and the surrounding Seacoast and Merrimack Valley area, including Kingston, Seabrook, Amesbury, and Merrimac. The same tidal humidity issues that affect Exeter extend to some neighboring riverfront communities, and we bring the same stone-basement expertise to those jobs.
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 - Air Duct Cleaning in Exeter
Yes, stone foundation basements in Exeter are exactly why duct cleaning is often necessary. The Squamscott River’s tidal reach keeps these basements persistently humid, and that moisture wicks directly into ductwork routed through the space, accelerating mold and biofilm growth that standard filters cannot catch. If your home is pre-WWII construction with retrofit ducts, we strongly recommend camera inspection to assess conditions. Call (844) 685-6342 for a free look.
We use compact rotary brushing equipment and flexible camera systems designed for confined spaces, and we disassemble access panels where needed rather than forcing tools through and damaging original framing. Our technicians are trained specifically for the tight clearances common in Exeter’s colonial and Federal-era homes. Most access challenges are solved during the initial inspection, with the approach explained before work begins.
Proper cleaning removes the biofilm and mold colonies causing the odor, but only if the underlying moisture source is addressed. On a historic Victorian on Front Street near Water Street, we found duct interiors coated in biofilm from decades of tidal moisture wicking through the stone basement. Our crew used a Rotobrush system with HEPA filtration, then sanitized with Abatement Technologies equipment, clearing the musty odor that had plagued the owners. We also flag moisture issues for your HVAC contractor or basement specialist. Call (844) 685-6342 to schedule inspection.
Every three to five years for most Exeter homes, but every two to three years if you have stone foundation basements, visible mold, or residents with allergies. The tidal humidity in 03833 accelerates accumulation compared to drier inland NH towns. Homes with pets or recent renovation may need more frequent service. We’ll assess your specific conditions during camera inspection and recommend an interval.
Yes, full system cleaning is our standard recommendation and covers supply ducts, return ducts, trunk lines, and the air handler cabinet. This is the only way to address the complete contamination pattern we see in Exeter’s older homes, where moisture and debris affect the entire loop. Full system cleaning in Exeter ranges $450-$650 for typical homes. Call (844) 685-6342 for exact pricing on your system.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Exeter since 1984.