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1,035 HOMES CLOSED IN:
Currently taking calls
1,035
Total Deals
$317M
Sales volume
$875K
Highest sales price
About William
I am an experienced and dedicated realtor who specializes in helping people achieve their real estate goals. I’ve been a resident of Delaware since 1998. Our state may be small, however, we have a lot to offer from urban locations, to sprawling suburbs, to quiet and quaint beach towns. I am an alumnus of Temple University in Philadelphia, PA and I hold a bachelor’s degree in finance. My unique combination of real estate and finance can help you navigate the housing industry.
With over 20 years’ experience, I continually strive to build initial and lasting relationships with those I serve. I am very confident that my knowledge of the local housing markets will help you sell your home or purchase the home of your dreams. I look forward to partnering with you.
William's Listings & Sales
Active Listings (9)
Sold with William (300+)
Bought with William (297)
1 of 23
LISTED BY REDFIN
3D WALKTHROUGH
$485,000
302 Edjil Dr
Newark, DE 197134
Beds
2.5
Baths
2,225
Sq. Ft.
William Sladek • (484) 962-0034
1 of 22
LISTED BY REDFIN
$425,000
4024 Rosetree Ln
Newark, DE 197023
Beds
2.5
Baths
2,047
Sq. Ft.
William Sladek • (484) 962-0034
1 of 19
LISTED BY REDFIN
3D WALKTHROUGH
$275,000
356 Tribbitt St
Dover, DE 199043
Beds
2.5
Baths
1,872
Sq. Ft.
William Sladek • (484) 962-0034
1 of 20
REDFIN UNDER CONTRACT
3D WALKTHROUGH
$539,000
1 Dalton Dr
Newark, DE 197024
Beds
2.5
Baths
2,225
Sq. Ft.
William Sladek • (484) 962-0034
1 of 6
REDFIN UNDER CONTRACT
$85,000
0 Kiamensi Rd
Wilmington, DE 19804—
Beds
—
Baths
—
Sq. Ft.
William Sladek • (484) 962-0034
1 of 29
LISTED BY REDFIN
3D WALKTHROUGH
$550,000
2031 Saint James Church Rd
Wilmington, DE 198084
Beds
2.5
Baths
2,325
Sq. Ft.
William Sladek • (484) 962-0034
1 of 26
LISTED BY REDFIN
3D WALKTHROUGH
$525,000
66 Mischief Ln
Smyrna, DE 199774
Beds
2.5
Baths
2,246
Sq. Ft.
William Sladek • (484) 962-0034
1 of 36
LISTED BY REDFIN
3D WALKTHROUGH
$475,000
1082 W Birdie Ln
Magnolia, DE 199624
Beds
3.5
Baths
2,888
Sq. Ft.
William Sladek • (484) 962-0034
1 of 9
LISTED BY REDFIN
$189,900
1905 W Second St
Wilmington, DE 198053
Beds
1
Bath
1,275
Sq. Ft.
William Sladek • (484) 962-0034
William's Insights
29 Victoria Blvd, Newark, DE 19702$277,0002 beds1.5 baths1,300 sq ft29 Victoria Blvd, Newark, DE 19702"."Saw this home 3 Days Ago
27 Preston Ln, Clayton, DE 19938$260,0002 beds1.5 baths1,360 sq ft27 Preston Ln, Clayton, DE 19938"Great waterview in back off the rear decks"Saw this home 3 Days Ago
44 Moriarty St, Dover, DE 19901$269,0003 beds2.5 baths1,424 sq ft44 Moriarty St, Dover, DE 19901"nice clean updated home with new roof, great side and backyard"Saw this home 1 Week Ago
William's Reviews
Most Recent Reviews
5.0
Very professional, very helpful.
5.0
Easy to talk to and easy to get hold of. Very responsive to texts and calls. Answered all our questions.
5.0
Practical, available, and pleasant.
5.0
Bill is amazing!! Hes very knowledgeable, kind, flexible with his time, and always willing to answer any questions big or small. Bill treats your home buying process as if your family. He wants you to get exactly what your looking for and will give you the best pointers. I couldn't have asked for a better realtor.
House buyer closed Jun '25
9 Fredericksburg Dr, Middletown, DE
9 Fredericksburg Dr, Middletown, DE
$720K • 4 Bed, 2.5 Bath, 3275 Sq. Ft. • Multiple offers
5.0
Amazing job very personable and did not pressure us to make a decision
House buyer closed May '25
9 Penndrew Ct, Wilmington, DE
9 Penndrew Ct, Wilmington, DE
$406K • 4 Bed, 2.5 Bath, 2300 Sq. Ft. • First-time buyer • Multiple offers
See All Reviews
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Meet William's Team
When you work with Redfin, one agent is responsible for your success, but you really get a whole team. Redfin agents work closely with a team of real estate professionals to ensure every sale closes without a hitch.
Nanette Guida
Transaction Coordinator
Sara Ross
Listing Coordinator
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