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Exhaust Fan Installation

Exhaust fan installation includes fan mounting, electrical connection, ductwork, and exterior venting—removing moisture and fumes before they cause damage.

What This Service Includes

Many fans vent into the attic instead of outside—causing rot, mold, and ice damming. Peeling paint, mold spots, and persistent humidity indicate inadequate ventilation.

D & D Electric provides complete installation: proper fan sizing, ductwork to exterior, and verified airflow. No moisture deposited in attics.

Signs You Need This Service

Sign What It Indicates Urgency
Peeling paint on bathroom ceiling Moisture condensation Paint failure, drywall damage, mold
Mold spots in bathroom corners Inadequate moisture removal Health hazards, structural damage
Foggy mirrors persist 20+ minutes Fan undersized or malfunctioning Continued moisture damage
Fan runs but nothing happens Motor failure or blocked duct No ventilation, wasted electricity
Musty smell in bathroom Mold growth, moisture accumulation Health issues, spreading contamination
Grease film on kitchen surfaces Range hood inadequate or unvented Fire hazard, difficult cleaning
Extremely hot upstairs in summer Poor attic ventilation Higher AC costs, roof damage

Our Process

  1. 1

    Assessment and Sizing

    Measure space, calculate CFM needed. 50 sq ft bathroom = 50 CFM minimum.

  2. 2

    Duct Routing Planning

    Shortest run, fewest bends—to wall cap or roof vent, never into attic.

  3. 3

    Installation

    Ceiling opening, fan mount, electrical wiring, ductwork, exterior vent cap.

  4. 4

    Testing and Demonstration

    Confirm airflow at exterior vent—not just motor running.

Benefits of Professional Service

Moisture Damage Prevention

Remove moisture before it causes rot, deterioration, and mold. Fan installation costs less than repairing damage.

Improved Air Quality

Remove moisture, odors, smoke, and cooking fumes at the source. Better health for allergy/asthma sufferers.

Energy Savings From Attic Ventilation

Attic fans reduce cooling costs by removing trapped heat. 150-300 watts saves far more in AC demand.

Why Choose D & D Electric

What We Provide Why It Matters
Proper Fan Sizing
CFM rating matched to room size ensures adequate ventilation
Complete Exterior Venting
Air goes outside, not into attic or walls
Quality Equipment
Panasonic, Broan, and other reliable brands
Duct Quality
Rigid duct when possible, properly sealed connections
1-Year Labor Guarantee
If anything fails due to installation, we fix it
Licensed Master Electrician
Safe electrical connections, code compliance

Frequently Asked Questions

How much does exhaust fan installation cost?
$200-$400 for replacement with existing ductwork. $300-$600 for new installations with duct runs.
How do I know what size exhaust fan I need?
1 CFM per square foot. Add 50 CFM per additional fixture. High ceilings need more.
Why does my fan run but not remove moisture?
Three causes: undersized fan, blocked/disconnected duct, or vents into attic instead of outside.
Should bathroom fans run continuously?
No. Timer switches that run 15-30 minutes after you leave work well.
My bathroom fan vents into the attic. Is that a problem?
Yes. Causes mold, rot, and ice damming. We re-route ductwork to vent outside.
Do exhaust fans need their own circuit?
Bathroom fans usually share lighting circuit. Range hoods and attic fans may need dedicated circuits.

Get Exhaust Fan Installation in Your Neighborhood

D & D Electric provides exhaust fan installation throughout Chester and Delaware Counties. Select your location to learn more about our services in your area.

Chester County

10 CITIES

Serving historic homes and modern developments across Chester County with expert electrical services.

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Delaware County

20 CITIES

From Main Line estates to urban neighborhoods, providing reliable electrical services across Delaware County.

+ 10 more locations

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What Our Customers Say

"D&D Electric has become our go-to electrician service. We first worked with them a few years back when we had an issue and other contractors couldn't schedule us and D&D by contrast came out the next day and did quality work for a reasonable price and were friendly and personable throughout."
C

Christin Bassett

Google Review

"Gary and Scott were fantastic to work with. They hung two large chandeliers in our home and made them look like perfection. The team didn't leave until we were 100% satisfied, making tweaks along the job."
F

Francesca LaMonaca

Google Review

Need Exhaust Fan Installation?

D & D Electric provides expert electrical services throughout Chester and Delaware Counties. Schedule your free estimate today.