Quick answer: installing a bathroom exhaust fan means sizing it to the room (about 1 CFM per square foot), mounting the housing, ducting it to the outside, wiring it to a switch, and testing airflow. A like-for-like replacement is a straightforward 60–90 minutes; a brand-new install with a new duct run and circuit is more involved.
Step 1 — Size the fan (CFM)
Measure the bathroom. Aim for roughly 1 CFM per square foot (a 50 sq ft bath → ~50 CFM). Size up for high ceilings or an enclosed toilet/shower. Undersized fans never clear the steam.
Step 2 — Cut in or reuse the opening
For a replacement, remove the old unit and reuse the opening if the new housing fits. For a new install, locate a ceiling joist bay, trace the housing, and cut the drywall cleanly.
Step 3 — Vent it outside
Run rigid or insulated flex duct to an exterior roof, soffit, or wall cap — never terminate in the attic. Keep the run short and straight; seal joints with foil tape and clamps. This step is where most DIY installs go wrong.
Step 4 — Wire it
Connect the fan to a switched circuit. A like-for-like swap reuses existing wiring. A brand-new circuit from the panel is licensed electrical work in most states — that's the point to call a licensed pro.
Step 5 — Mount, grille, and test
Secure the housing to the joist, snap on the grille, restore power, and test: hold a sheet of tissue to the grille — it should hold flat against the suction. Confirm the exterior cap's damper opens when the fan runs.
When to call a pro
Working over a stairwell, no existing vent path, a new circuit, or a roof penetration are all good reasons to hand it off. Through The Toolbox Pro you get a flat-rate quote from a vetted local pro before you commit — replacements start at $135.
Skip the ladder — get a pro quote
Frequently Asked Questions
How do I book a service?
Book online. Choose your service, pick a time slot, and pay a deposit to confirm. You’ll receive a text confirmation and reminder.
What areas do you serve?
We serve homeowners across the United States. Enter your zip code when you book online to see availability in your area.
Do you charge for estimates?
We provide instant online estimates at no cost. To confirm a booking, a deposit is required and is credited toward your final invoice. For complex projects requiring an on-site assessment, a $65 fee applies and is credited to the job cost if you proceed.
How much does handyman service cost?
Most services start at $65. We charge per job, not per hour, so you know the price before we start — no surprise invoices.
How quickly can I get an appointment?
Same-day appointments are available with a $115 deposit. Most standard appointments are available within 1-3 business days. Book online to see availability.
Are you licensed and insured?
The Toolbox Pro carries general liability insurance and all work is backed by our satisfaction guarantee.
Do you charge by the hour or by the job?
We charge per job, not per hour. You get a fixed price upfront. This protects you from open-ended hourly billing that can escalate unexpectedly.
Can I get same-day service?
Yes. Same-day service requires a $115 deposit at booking. We’ll confirm your appointment time by text. Standard bookings require only a $65 deposit.
