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Over 10,000 Satisfied Seal Coating Customers!

In 1985, Jeffrey Lang and Keith Critchley began seal coating driveways for customers in Chester, Delaware, and Montgomery counties. Offering a 100% guarantee of satisfaction and personalized attention, Lang’s Driveway Seal Coating plans grown every year and boasts a 99% customer satisfaction rating.

With over 20 years experience seal coating driveways for home and business owners in Chester, Delaware and Montgomery counties, you can trust Lang’s to deliver high quality, professional results that will improve your home’s curb appeal. Unlike “door-to-door” seal coating companies that spray on a thin coat of cheap sealant, our high quality, commercial grade sealant combined with 20 years of experience ensure that your driveway remains beautiful and protected for years to come.

What you can expect:

  • Machine cleaned prior to sealing
  • Driveway edged prior to sealing
  • Commercial grade sealant
  • Sealant applied by hand
  • Only sand mix used
  • Reliable quality workmanship
  • Fully insured
  • Commercial and residential

Why Seal Coat Your Driveway?

Seal Coating prevents oxidation. Asphalt pavement begins to deteriorate almost as soon as it is paved. As the pavement is exposed to oxygen, the asphalt binder (tar) hardens. This hardening results in a brittle surface that eventually cracks. Cracks in the pavement enable oxygen and rainwater to penetrate the pavement, often into the sub base, weakening it and reducing the pavement’s strength.

Seal Coating protects the surface and fills surface voids, reducing pavement’s exposure to oxygen and water and extending pavement life. It will also enhance the appearance of the pavement, reduce maintenance and brings back the dark black color of the original pavement, making it look and wear like new. Because seal coat fills surface voids, a seal coated surface is much smoother, which is easier to sweep, shovel, and wash.

Our Customers Love Us!


  • I sealed my driveway before selling my house for some instant curb appeal. I had no idea the difference that it would make. I just wish that I had done it earlier to enjoy it more myself! Lang’s Seal Coating was very easy to work with and very reasonable pricing. Thank you!

    Betsy Nestor

    Berwyn, PA

  • Three years ago, I hired a company to seal coat my driveway. They used a spray that they told me would last for several years. Within 6 months, my driveway was back to looking gray, like before they sprayed. So, I tried Lang’s Seal Coating and am impressed that after two years, my driveway still looks great. See you in several more years!

    Ben Jameson

    Malvern, PA

  • I couldn’t believe how big of a difference a freshly seal coated driveway makes with the look of my house. I realize that there are many other benefits, but the look alone was well worth it. The crew was very professional, showed up at the time that I was told, and cleaned up the area when they left. Thanks Lang’s Seal Coating!

    Sharon Johnson

    Downingtown, PA

Real Customers. Real Reviews.

Rick Sapovits

“Great service! My lawn always looks terrific. Highly recommend Lang’s.”


~ Rick Sapovits from Wayne, PA
Read Rick’s review on Google

Albert Pomenti

“Lang’s has always been good to us for 4+ years now…they always come back for free for another treatment without any trouble or hassle.”


~ Albert Pomenti from Exton, PA
Read Albert’s review on Google

“…Headed into my 2nd year with Lang’s and it is amazing the turn around. The lawn looks amazing!…”


~ Mark Deese from Philadelphia, PA
Read Mark’s full review on Google

How much does it cost to keep your trees healthy?

Not as much as you think! Contact us today for a free evaluation and estimate from our ISA Certified Arborist!

Get Free Estimate

OR call (610) 854-8261 today!

Our Locations

Malvern
130 Pennsylvania Avenue
Malvern, PA 19355

Pottstown
1001 Daisy Point Rd
Pottstown, PA 19465

Contact Us

24 hour answering service - call anytime!
Phone: (610) 647-6001
Fax: (610) 647-6007
Send us a message: Click here

Office Hours

Monday: 8:00am – 5:00pm
Tuesday: 8:00am – 5:00pm
Wednesday: 8:00am – 5:00pm
Thursday: 8:00am – 5:00pm
Friday: 8:00am – 5:00pm
Saturday: 7:00am – 1:00pm
Sunday: Closed

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To receive a free estimate, please fill out the form below and one of our representatives will contact you shortly. Please allow up to 3 business days for an estimate. For faster service, give us a call at (610) 647-6001 anytime!

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