William F Sladek

William F Sladek
Real Estate Agent (Salesperson)
Wayne PA

Salesperson (PA: RS-0017340)

21 years experience

REALTOR® 1 Active Listings Serves Delaware County, PA
View on Realtor.com

Contact Information

Brokerage
Redfin Corporation

Office Website
Office Address
993 Old Eagle School Rd E Ste 417
Wayne, PA  19087
(Delaware County)
Office Phone
484-962-0034
Office Fax
302-655-8031
Mobile
302-494-8100
Email
bill@denewhomes.com

Service Areas

Bear: DE St. Georges: DE Glasgow: DE Kirkwood: DE Christiana: DE North Star: DE Hockessin: DE Pike Creek: DE Middletown: DE Townsend: DE Marshallton: DE Pike Creek Valley: DE Dover: DE Dover Base Housing: DE Cheswold: DE Highland Acres: DE Leipsic: DE Little Creek: DE Kent Acres: DE Rising Sun-Lebanon: DE South Bethany: DE Bethany Beach: DE Woodside East: DE Felton: DE Woodside: DE Riverview: DE Fenwick Isle: DE Fenwick Island: DE Rehoboth Beach: DE Lewes: DE Nassau: DE Magnolia: DE Milford: DE Slaughter Beach: DE Bowers: DE Millsboro: DE Long Neck: DE Millville: DE Clarksville: DE Ocean View: DE Dewey Beach: DE Henlopen Acres: DE Smyrna: DE Clayton: DE Newark: DE Wilmington: DE

About William Sladek

William is a licensed real estate agent in Delaware, bringing over eight years of experience as a loan officer to the table. A resident of Delaware since 1998, [he/she/they] holds a degree in Finance with a minor in Civil Engineering, equipping [him/her/them] with a unique perspective on home financing and market dynamics. William is dedicated to guiding clients through the process of finding their ideal home, leveraging extensive knowledge of local housing markets to ensure informed decisions.

With a background in military relocation, William has a deep understanding of the needs of service members and their families. [His/Her/Their] tenure at USAA Savings Bank involved assisting thousands of military personnel with VA loans, FHA loans, and first-time homebuyer programs. For those seeking properties near Dover Air Force Base or other military installations, [he/she/they] is well-prepared to provide expert assistance.

William offers complimentary buyer's agent services, ensuring that clients face no hidden fees or obligations. Specializing in new construction homes, [he/she/they] maintains a comprehensive database of every new development in Delaware, including quick delivery homes, builder model homes, and to-be-built options. This resource allows clients to save time and money by avoiding unnecessary property viewings.

As a member of the Delaware Home Builder's Association, William has established strong connections with major builders and developers throughout the state. This network provides clients with valuable insights into hidden costs, lease options, and custom solutions, including potential modifications to floor plans. [He/She/They] also offers ongoing support throughout the construction process, ensuring that any issues are addressed promptly and that clients are well-informed until move-in day.

For a dedicated real estate partner who combines financial expertise with local market knowledge, William is ready to assist you in your home-buying journey.

Delaware County, PA Real Estate Market Analysis (Single Family Homes)

$914,268
Avg. Listing Price
From William's portfolio
3.9 / 3.1
Avg. Beds/Baths
Typical property size
2,936 sf
Avg. Square Footage
Interior living space
887
Active Listings
Current inventory

If you need to reach working real estate agents in Delaware County, Pennsylvania, this list was built for you. Mortgage lenders, title companies, and insurance providers use it to put their services directly in front of the agents closing deals every day. PropTech companies, continuing education providers, and real estate recruiters rely on it to run targeted outreach campaigns without wasting budget on statewide lists full of agents who will never work their market.

The Delaware County agent list includes {{AGENT_COUNT}} actively licensed professionals with verified email addresses, plus {{CELL_COUNT}} agents with cell phone numbers for campaigns that go beyond the inbox. Whether you are pitching a new loan product, recruiting for a growing brokerage, or selling a software tool built for agents, this data gives you a direct line to the people making decisions in this specific market.

Why Buy a Delaware County Real Estate Agent Email List From Dr Bill

Every record in this list is sourced directly from the Pennsylvania state licensing board, so you are starting with agents who are verified, active, and legally permitted to practice. New emails are added weekly, the full list is cleaned monthly, and the entire dataset is refreshed bi-annually. That discipline produces a 96% deliverability guarantee — a standard that cheap data scrapers and outdated list brokers simply cannot match. Dr Bill has been in business since 2005 and has sold over 31,000 lists, and that track record exists because the data actually works.

Most vendors give you a county file and call it targeted. Dr Bill delivers data segmented down to the zip code level within Delaware County — a capability no other vendor in this space offers. That means you can focus your cold email campaign on Haverford Township, limit a direct mail run to Media, or target a single zip without paying for contacts you will never use. Load the file into any cold-email platform, including Zap Contact at zapcontact.com, and you are running a real campaign within the hour.

How to Use This Delaware County Agent List

Email outreach is the most common use case, and cold-email platforms handle this list cleanly because the deliverability is already validated. You can also use the phone numbers for direct outreach or SMS campaigns, and the full contact records support direct mail drops to agent offices. For LinkedIn matching, upload the email addresses to build a custom audience and run your ads exclusively in front of Delaware County agents.

Segmenting by broker versus sales agent unlocks sharper messaging. Pitch your recruiting offer to licensed sales agents who may be looking for a better split, while directing your technology or insurance pitch to brokers who control purchasing decisions for an entire office. The data supports both cuts without any additional work on your end.

Why Delaware County, Pennsylvania Agent Data Matters

Delaware County sits immediately west of Philadelphia and includes active real estate markets across cities and townships like Upper Darby, Havertown, Springfield, Ridley Park, and Swarthmore. This concentration of suburban Philadelphia activity means the agents here are busy, transacting regularly, and genuinely receptive to services that help them close more efficiently. When you buy Delaware County real estate agent email list data at this level of precision, you are not diluting your message across an entire state — you are speaking directly to {{AGENT_COUNT}} professionals working this exact geography.

Local targeting consistently outperforms statewide blasts because relevance drives response rates. An agent in Media, Pennsylvania does not care about a pitch written for Philadelphia or Pittsburgh. A message that references their county, speaks to their market, and lands in a verified inbox performs at a fundamentally different level. That is the difference this list delivers.

Current Property Listings

As of 6/27/2026, William Sladek has 1 property for sale in Wayne and surrounding areas.

$179,000

Listed 2025-07-07

1905 W Second St
Wilmington, DE  19805

Beds: 3.0
Baths: 1.0
Sq Ft: 1,275
Lot: 1,742 sf
View Full Details

Current Property Rentals

William Sladek currently has no rental properties available in Wayne and surrounding areas. Check back later.