When outside temperatures soar, an efficient attic fan can drop interior attic temperatures by up to 30°F, protecting roofing materials and cutting HVAC bills. But how much should you budget to replace an under-performing unit? This guide provides a comprehensive breakdown of attic fan replacement costs, helping you plan with confidence and keep your projects on track.
The typical attic fan replacement cost ranges from $450 to $950. This includes labor, disposal of the old fan, and a mid-range 1,500–2,000 CFM unit. Final pricing depends on several variables that every contractor should understand before providing a quote.
• Fan capacity and brand specification: Higher CFM and smart-control features increase material costs.
• Roof or gable mounting style: Roof-mounted fans require additional labor for shingle removal and weatherproofing.
• Electrical accessibility: Existing wiring reduces time on site, while new circuits add material and electrician costs.
• Attic accessibility: Narrow hatch openings or steep roof pitches may require extra prep work.
• Permit jurisdiction: Some municipalities require mechanical permits; ensure local fees are accounted for in estimates.
1. Basic 1,000 CFM gable fan: $120 – $180
2. Mid-range 1,500 CFM roof fan with thermostat: $200 – $320
3. Solar-powered 1,800 CFM roof fan: $350 – $550
4. Smart Wi-Fi 2,000 CFM hybrid fan: $380 – $650
Real-time pricing ensures no surprises, with costs synced from regional supplier catalogs.
• Remove existing fan and flashing: 0.5 – 1 labor hour
• Structural opening adjustment (if required): 0.5 – 1 hour
• New fan placement, flashing, and fasteners: 1 – 2 hours
• Electrical disconnect/reconnect and testing: 0.5 – 1 hour
• Weather sealing and attic insulation repair: 0.5 hour
Average crew rate for certified residential carpenters and electricians: $85 – $115 per hour, depending on location.
Replacing an outdated attic fan is an energy-efficiency upgrade that can pay back in two to four summers. Benefits include lower cooling bills, extended roof longevity, and improved indoor air quality.
Professional installation is recommended to avoid risks such as roof penetration errors, improper wiring, and incorrect fan sizing. Most clients choose professional installation for warranty coverage on parts and labor.
1. Initial consultation (10 minutes)
2. AI attic mapping and cost generation (immediate)
3. On-site verification and permit filing (1 business day)
4. Fan removal and install (2–3 hours)
5. Final inspection and digital close-out package (same day)
• Zero-interest financing for 6 months on projects over $1,000
• Digital payments and escrow options
• Automatic rebate lookup for state energy rebates
How long does a modern attic fan last?
With proper installation, expect 10–15 years.
Will a solar attic fan cover my entire attic?
Solar units are effective when paired with adequate soffit intake.
Do I need to be home during installation?
No. Secure remote access allows work to be performed while you continue your day.
When the Ramirez family reached out, their 2,200 sq ft ranch home was averaging indoor attic temperatures of 135°F. HVAC runtime skyrocketed, and shingles were curling after only eight years.
• Location: Suburban Southwest
• Existing unit: 1,000 CFM gable fan, seized motor
• Solution: 2,000 CFM Wi-Fi roof-mount fan with smart thermostat
• Total attic fan replacement cost: $875 (all-in)
1. Voice Guided Takeoff: In 12 minutes, the homeowner described attic dimensions. AI modeling recommended a 2,000 CFM unit.
2. Live Supplier Sync: Material pricing locked in at $382, confirmed by local warehouse inventory.
3. Installation Day: Two-person crew completed removal, new flashing, and wiring in under three hours.
4. Real-Time Monitoring: Smart fan now auto-adjusts speed based on humidity and temp.
• Attic peak temperature dropped from 135°F to 108°F
• HVAC runtime reduced by 22 hours per month
• Electric bill savings averaged $48 per month
• Roof deck moisture levels normalized, preventing mold growth
• Oversized isn’t always better—CFM must match attic volume to avoid negative pressure.
• Smart controls add about 10% to your attic fan replacement cost but can unlock 15% extra energy savings.
• Accurate, real-time material pricing is crucial; supplier integrations eliminated a $90 price swing.
