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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm Saturday 8am - 5pm

Complete Basement Systems

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United States
Massapequa, NY
Complete Basement Systems

Long Island's premier basement waterproofing company for over 23 years! Wet Basement? No problem! We solve all basement water problems, large or small.

Whether you have water coming through your basement walls, floor, doorways, or windows, we have a reliable, effective solution. Did you know:
- A wet basement can reduce the value of your home as much as 25%.
- A dry basement can become a comfortable living area that provides up to a 110% return on your investment in the first year. HOMEOWNERS, CONTACT US TODAY FOR YOUR FREE ESTIMATE! Let our professionals help you!

04/01/2026

Its that time again Come on down to Tobay beach and don't miss the best car show on Long Island! See Complete Basement Systems for all your basement and crawlspace needs!

11/27/2025

Happy Thanksgiving from our family to yours. We’re thankful for all the love we receive from your continued support and hope you all have a lot to be thankful for this year! 🦃🥧

11/04/2025

Did your Basement or crawlspace get flooded in the last rain? Call us today for free estimate.
516-334-0000

10/05/2025

Come see Complete Basement Systems at Town of OysterBay’s Tobay beach car show tomorrow October 5th ! The biggest car show on the island. See exciting new products we have to offer.

07/04/2025

Happy 4th of July from our family to yours. We are grateful for our men and women who have and are currently serving this country to continue to keep us safe and free. Whether you’re enjoying a family barbeque, picnic with friends, or a fireworks show with loved ones, we hope you have a wonderful and safe day!

05/25/2025

We at Complete Basement Systems want to wish all our veterans, active military, and their families, a happy and safe Memorial Day.
Special military discount for all services we offer this week. Call us to schedule your appointment!

03/31/2025

Ready for the Spring rains?
Make your basement go from this to that!!!
Complete Basement Systems
Long Islands premier waterproofing and crawlspace repair company. Free estimates. Family owned and operated 40+ years in the business.

01/03/2025

CBS takes pride in executing our jobs in a clean, efficient yet thorough manner. Here our field techs are drilling holes to perform a foundation crack injection. Although this customers basement is unfinished, our techs are still taking the extra step to perform dust control, minimizing dust from traveling throughout the rest of their home. It’s the small details like this that we like to pride ourselves on and continue to set the bar higher each job we perform.

For more info, click the link in our bio
Or
Call us now to schedule your FREE estimate
(516) 334-0000

11/27/2024

Happy Thanksgiving from the Complete Basement Systems family to you and yours! We hope you all have a beautiful time gathering with your families and enjoy a delicious meal with lots of laughter! Remember to enjoy the time you all have together and to do it safely & responsibly. Safe travels and we will see you all Monday morning.

For more info, click the link in our bio
Or
Call us now to schedule your FREE estimate
(516) 334-0000

11/11/2024

To all the brave men and women that have served this country, Complete Basement Systems is grateful for all you’ve sacrificed! From the bottom of our hearts, thank you for your service. If you’re in need of any services we offer, please don’t hesitate to call us for your Veterans Day discount. Stay safe out there, and once again thank you for all you do!

For more info, click the link in our bio
Or
Call us now to schedule your FREE estimate
(516) 334-0000

Address

13 Rockwood Avenue
Massapequa, NY
11758

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm
Saturday	8am - 5pm

Website

http://completebasementsystems.com/

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