Discount


Looking for a SEMCO Works Discount Code?

You are in the right place. Sign up below and get 10% off your first order. Instantly.

We get it. Before you invest in a waterproofing project, you want to make sure you are getting the best deal. Good news: this is the only page you need.

We do not scatter random coupon codes across the internet. Instead, we offer one exclusive discount directly to our community. Sign up for the SEMCO Works newsletter and your personal 10% discount code will be sent to your inbox within seconds.

Get Your 10% Discount Code

Enter your email and we will send your personal code right away. No spam, no tricks, just real value for your next project.


How It Works


1

Sign Up

Enter your email above. It takes 5 seconds.

2

Check Your Inbox

Your personal 10% discount code arrives instantly.

3

Save on Your Project

Apply the code at checkout and save on everything in our shop.

More Than Just a Discount


When you join the SEMCO Works community, you get more than a one time code.

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Early Access to Sales

Be the first to know about Memorial Day, 4th of July, Labor Day and other seasonal sales before they go public.

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Project Guides and Pro Tips

Step by step instructions, video tutorials, and expert advice for every surface type. From basements to pools to rooftops.

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Exclusive Offers

Subscriber only deals that we never post on social media or coupon sites.

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New Product Launches

Be the first to try new SEMCO products and get early access pricing.

Trusted by Over 100,000 Homeowners


SEMCO Works has been developing professional grade waterproofing products in Las Vegas, Nevada since 1991. Easy to apply, built to last, and proudly made in the USA.

4.9/5
Average Rating
1,125+
Verified Reviews
30+
Years of Engineering
⭐⭐⭐⭐⭐
Applied SEMCO Liquid Membrane on a Saturday and my basement was sealed by Sunday. No more water issues. This product simply works.
Mike R.
Verified Buyer
⭐⭐⭐⭐⭐
I tried DryLok before and it failed within a year. SEMCO has been holding up perfectly for over two seasons now. Easy to apply and looks great.
James T.
Verified Buyer

Frequently Asked Questions


Is there a SEMCO Works coupon code available right now?
Yes. Sign up for our newsletter on this page and you will receive a 10% discount code instantly. This code works on all products in our shop, including Liquid Membrane, Crystal Coat, PreStain, Titan Shield, and all accessories.
How much can I save with the SEMCO Works discount?
New subscribers get 10% off their entire first order. We also run seasonal sales throughout the year with discounts of 10 to 15% on select products. Newsletter subscribers always get early access to these events.
Does SEMCO Works offer free shipping?
Yes. All orders over $99 ship free to all 48 contiguous US states. Most customers easily qualify for free shipping since waterproofing projects typically require more than one gallon.
Can I combine the discount code with a sale?
The 10% welcome discount applies to your first order. During seasonal sales, we offer separate promotions that may include additional savings. Check your email for the latest offers.
Where else can I find SEMCO Works coupons?
This page is the official source for SEMCO Works discounts. We do not distribute codes through third party coupon sites. The best way to stay updated on all deals and promotions is through our newsletter.

Ready to Save on Your Next Project?

Join thousands of homeowners who protect their surfaces with professional grade results. Get your 10% discount code now and start your project this weekend.

GET MY 10% DISCOUNT