Make-Up Air System Cost and Typical Prices for Residential &Amp; Commercial Units 2026
Buyers typically pay between $1,200 and $12,000 for a make-up air system depending on capacity, whether the unit is tempered or heated, and installation complexity. This article estimates make up air system cost ranges and highlights the main drivers: CFM, ductwork, roof work, and fuel type.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Small unheated MUA (500–1,500 CFM) | $800 | $2,000 | $4,000 | Assumptions: simple duct, ground-mounted, suburban |
| Heated/Tempered MUA (1,500–3,000 CFM) | $2,200 | $5,500 | $9,000 | Assumptions: gas-fired heater, roof curb, moderate ductwork |
| Large rooftop MUA (3,000–10,000+ CFM) | $4,000 | $8,500 | $18,000 | Assumptions: commercial, complex curb work |
| Installation/Retrofit only | $500 | $2,500 | $8,000 | Assumptions: varies with access, permits |
Typical Total Price For a Residential Make-Up Air Unit (500–1,500 CFM)
Most homes end up paying $1,200-$3,500 for a basic unheated MUA with standard duct runs and no major roof work.
Equipment: $800-$2,000 for a manufacturer packaged unit or fan/coil; Labor & installation: $400-$1,500; Ductwork: $4-$9 per sq ft or $10-$25 per linear ft for short runs. Assumptions: single-story house, 1-2 duct penetrations, local labor.
What a Tempered or Gas-Heated Make-Up Air System Costs
Adding a gas heater or electric preheat raises the price to $2,200-$9,000 depending on BTU and controls.
Gas-fired tempered units typically add $1,200-$4,500 for the heating section plus $300-$1,200 for controls and safety devices. Typical heater sizes: 40,000–200,000 BTU; higher BTU increases equipment and gas line work costs.
Breakdown Of Material, Labor, Equipment, Permits, and Disposal Costs
| Cost Component | Low | Average | High |
|---|---|---|---|
| Materials (fans, diffusers, dampers) | $300 | $1,200 | $4,000 |
| Labor (installation, duct, electrical) | $400 | $1,800 | $6,000 |
| Equipment (unit, heater, controls) | $800 | $3,000 | $10,000 |
| Permits & inspections | $50 | $350 | $1,200 |
| Delivery / Disposal | $50 | $250 | $800 |
Assumptions: U.S. metro pricing, normal access, typical municipal permit fees.
How CFM, Duct Length, and Roof Curbs Change the Final Quote
Capacity and physical installation variables drive the largest swings: each doubling of CFM often raises equipment cost by 50% or more.
Examples of thresholds: under 1,500 CFM (small residential), 1,500–3,000 CFM (large homes/light commercial), above 3,000 CFM (commercial). Duct run length: add roughly $10-$25 per linear ft for insulated duct and fittings beyond 20 ft. Roof curb/curb adapter adds $300-$1,200; curb modification or structural work can be $1,000-$4,500.
Ways to Reduce Make-Up Air Pricing Without Sacrificing Performance
Limit installed capacity to the measured need, avoid unnecessary heating sections, and provide clear access to reduce labor hours.
Cost-control tactics: perform a measured CFM calculation to right-size the unit; choose unheated MUA if local climate allows; bundle ductwork with other HVAC projects to save on mobilization; complete site prep (clear attic access, mark penetrations) to reduce on-site labor time.
Regional Price Differences: City, Suburb, and Rural Examples
Metro areas run about 10–25% higher than rural markets; rates vary by demand and prevailing wage.
Typical deltas: urban +15% average, coastal metros +20–25%, rural/suburban -5–15%. Materials are fairly consistent; labor and permit fees cause regional differences. Assumptions: comparable unit and scope.
Real-World Quote Examples With Specs, Hours, and Totals
| Scenario | Specs | Labor Hours | Total |
|---|---|---|---|
| Small home supply only | 800 CFM, ground-mounted, unheated | 6–10 hours | $1,200-$2,400 |
| Heated make-up air for restaurant | 3,500 CFM, gas heater 150,000 BTU, roof curb | 40–80 hours | $8,000-$15,000 |
| Retail retrofit | 2,200 CFM, tempered, 60 ft duct runs | 20–40 hours | $4,500-$9,000 |
Assumptions: labor rates $75-$125 per hour depending on region and trade.
Common Add-Ons, Permit Fees, and Site Complications That Affect Price
Expect to pay extra for gas line hookup, electrical upgrades, curb flashing, insulation, and expedited permits.
Typical add-ons: gas piping $300-$1,200, electrical disconnect or panel work $200-$1,500, curb flashing and roof sealing $200-$900, expedited permit or plan review $100-$700. Hidden complications like asbestos, restricted roof access, or longer duct fabrication add $500-$4,000.