OUR SERVICES
FREE ESTIMATES
Black Diamond Sealcoating offers free estimates to clearly explain the sealcoating and crack repair process and pricing.
PROFESSIONAL CRACK REPAIRS
Cracks happen overtime. Having a fresh base makes all the difference to ensure the best results when sealcoating your driveway. We use cold and hot pour crack filler.
PROFESSIONAL SEALCOATING
Professionally sealing your driveway every 2 or 3 years will help preserve your driveway for about 20 years. Also improving the appearance of your home.
now booking for SPRING 2026!
Wanting to be first on our lists to get your sealcoat finished? Start this Spring off with a sharp looking driveway! Call or text 603-800-9590 today for your free estimate.
"I would recommend Jason Makso to do my seal coating again in a heartbeat. He pays attention to detail in prep work and throughout the entire process. Cleans up his equipment and the area he worked in completely. He works with a steady hand and motion, giving an even smooth flow to his work."
Ruth, Alton Bay, New Hampshire
BEFORE and AFTER
ABOUT US
Black Diamond Sealcoating was founded by Jason Makso, a New England native with a heart for making all New Hampshire driveways look professional and sharp. We are proudly a family owned and operated company. We value taking the time to get the job done right. Call us today to get a free estimate for your driveway sealcoating and crack repair services!
DUNBARTON, NEW HAMPSHIRE
My driveway is old and tired - and really looked horrible. I was almost ready to replace it but decided to seal it one more time. We learned that Jason is in this business and gave him a call. Jason's estimate was fair and we agreed to do it. Jason took the time to prepare the surface well! And the result exceeded my expectations. I'd recommend Black Diamond Sealcoating to anyone needing a fresh coat of sealant, providing a remarkably refreshed appearance! Thank you Jason!
ALTON, NEW HAMPSHIRE
"It’s all about the prep work that made the finished driveway shine. Our driveway was in very poor shape from years of neglect and Black Diamond Sealcoating made the effort to fill all the cracks, and then the final seal coating was completed on day two. Now our finished driveway looks totally brand new! Fair pricing. Right on execution! Thank you Jason!"
Music: Lance Taber. Kickstand
Serving New Hampshire
Tel: 603-800-9590
OPENING HOURS:
Mon - Fri: 8am - 6pm
Sunday: Closed