A spiral duct grille typically costs $25-$300 for the grille alone, while a grille supplied and installed commonly totals $100-$450 per opening. Price depends on grille size, steel or aluminum construction, custom curvature, duct access, and whether the connection needs a collar or balancing damper.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Grille only | $25 | $100 | $300 | Standard to custom curved styles |
| Installed per grille | $100 | $220 | $450 | Includes typical fitting and labor |
| Custom grille, 12-24 in. | $75 | $175 | $400 | Size, finish, and curvature affect price |
Assumptions: U.S. pricing for one accessible opening, standard commercial-grade materials, and no major duct relocation.
In lower-cost markets, a standard installed grille may land near the low end of the range; large metro areas and high-wage coastal markets can run about 15%-30% higher. Rural jobs may have lower hourly rates but a higher trip or delivery charge, especially when a custom grille is ordered from a distant supplier.
Custom orders can take one to several weeks, and oversized faces may incur $20-$150 in delivery or fabrication charges. Replacement work scheduled alongside other HVAC repairs may avoid a separate service-call minimum; urgent or after-hours work can increase labor charges by 25%-50%.
Compare complete installed quotes, not just the listed grille price. Confirm delivery, removal, damper, sealing, balancing, finish, and any service-call charge are included before comparing totals.
Ways to reduce the price without undersizing the grille
Keep the existing opening and duct connection where possible, and provide the contractor with duct diameter, face dimensions, and photos before requesting a quote. A stock steel grille in a standard finish may avoid custom-shop charges, while matching several openings in one order can reduce delivery and mobilization costs.
Save on finish and scheduling, not on required airflow or secure duct connections. Get at least two itemized bids that state grille material, dimensions, damper type, labor hours, and balancing scope. If only the face is damaged, replacing that component may cost less than rebuilding a sound collar or branch connection; if the existing assembly leaks or is badly sized, a face-only swap may not solve the problem.