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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon129
    Verified driveway sealcoating reviews

Find Driveway sealcoating pros in Alton

Chinook Concrete, LLC

5.00(
2
)
Approved Pro

Chinook Concrete, LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

We're dedicated to providing our clients with the very best in concrete installation and repair for driveways, sidewalks, patios, steps, and a variety of other projects. With 10 years of industry experience, we take and enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"This worker is timely, courteous, artistic, talented and accommodating. He performed exactly as promised and was able to provide an accurate estimate. I couldn't be more pleased. Anyone will have a good experience with this professional."

Roy R on June 2023

We're dedicated to providing our clients with the very best in concrete installation and repair for driveways, sidewalks, patios, steps, and a variety of other projects. With 10 years of industry experience, we take and enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"This worker is timely, courteous, artistic, talented and accommodating. He performed exactly as promised and was able to provide an accurate estimate. I couldn't be more pleased. Anyone will have a good experience with this professional."

Roy R on June 2023


"Great. They did their work quickly and professionally. Friendly."

Daniel C on December 2023

Here at Howards Paving we specialize in many types of asphalt repairs and as well as asphalt installation to the highest level of standards. We here at Howards Paving have over 30 years of asphalt experience

"Great. They did their work quickly and professionally. Friendly."

Daniel C on December 2023


Avatar for Sapphire Paving &  Masonry

Sapphire Paving & Masonry

4.92(
25
)
Approved Pro

Sapphire Paving & Masonry

4.92(
25
)
Approved Pro
Customers say: Terrific value
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
24 local quotes requested

SAPPHIRE PAVING & MASONRY is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Robert and his crew were great to work with. Robert responded immediately when I requested my first quote. And have been responsive to every request since then. The work was done all in one day with no delays for lack of equipment or delays. On the day of the paving, I changed my mind on the scope of work. They totally understood my desire for the change and worked with me to re-adjust the work plan. I would hire them again with no reservation. Lenore Higgins, North Sandwich, NH"

Lenore H on October 2025

SAPPHIRE PAVING & MASONRY is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Robert and his crew were great to work with. Robert responded immediately when I requested my first quote. And have been responsive to every request since then. The work was done all in one day with no delays for lack of equipment or delays. On the day of the paving, I changed my mind on the scope of work. They totally understood my desire for the change and worked with me to re-adjust the work plan. I would hire them again with no reservation. Lenore Higgins, North Sandwich, NH"

Lenore H on October 2025



Avatar for JonCrete

JonCrete

No reviews yet

JonCrete

No reviews yet
15 years of experience

Concrete Flatwork Pool Decks and Patios/Walkways Stamped, Colored, textured Concrete countertops Fireplace Surrounds Showers Outdoor kitchens Ground and Polished concrete new and existing

Concrete Flatwork Pool Decks and Patios/Walkways Stamped, Colored, textured Concrete countertops Fireplace Surrounds Showers Outdoor kitchens Ground and Polished concrete new and existing


Avatar for Dirt Dynamix LLC

Dirt Dynamix LLC

No reviews yet

Dirt Dynamix LLC

No reviews yet

We are a small dirt work and welding company based out of central New Hampshire. We are a family business, co-owned by Brother-in-Laws. We have both been in the industry for 5 years. Get in contact with us if you are looking for any of these services! - Yard expansions/ Renovations - Driveway installs - Hardscaping - Retaining walls - Drainage - Light demo - Concrete slabs - Water features - Land clearing - Metal fab & Repair work ( steel, stainless, aluminum) -Shed Moving -Container Moving

We are a small dirt work and welding company based out of central New Hampshire. We are a family business, co-owned by Brother-in-Laws. We have both been in the industry for 5 years. Get in contact with us if you are looking for any of these services! - Yard expansions/ Renovations - Driveway installs - Hardscaping - Retaining walls - Drainage - Light demo - Concrete slabs - Water features - Land clearing - Metal fab & Repair work ( steel, stainless, aluminum) -Shed Moving -Container Moving


Cartonio Concrete-Flatwork LLC

No reviews yet

Cartonio Concrete-Flatwork LLC

No reviews yet
Free onsite estimate

* Owner operated business * 5-years experience * We Specialize in - house and garage floor, patios, walkways, stamped patios and walkways, steps, driveways, shed slabs, trailer slab and monolithic slabs. * Fully insured

* Owner operated business * 5-years experience * We Specialize in - house and garage floor, patios, walkways, stamped patios and walkways, steps, driveways, shed slabs, trailer slab and monolithic slabs. * Fully insured



Avatar for Clark Co

Clark Co

4.33(
6
)

Clark Co

4.33(
6
)
Customers say: Terrific value
18 years of experience

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today! Asphalt paving and sealcoating

"The crew missed a spot in front of our garage door. I called the next day and Bobby said he look into it. Didn't hear anything for two weeks so I called again and spoke with Clark. He said he'd be out that week to look it over. Again, two weeks went by with out anyone contacting me. If you want a thorough job do not use this company."

Joe M on June 2021

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today! Asphalt paving and sealcoating

"The crew missed a spot in front of our garage door. I called the next day and Bobby said he look into it. Didn't hear anything for two weeks so I called again and spoke with Clark. He said he'd be out that week to look it over. Again, two weeks went by with out anyone contacting me. If you want a thorough job do not use this company."

Joe M on June 2021


Candido Services LLC

No reviews yet

Candido Services LLC

No reviews yet
Free onsite estimate

Our mission is to provide our clients with quality craftsmanship at an equitable price, through a team of highly skilled and trained professionals using safe and innovative techniques. While supplying our employee owners with the knowledge and resources necessary for their success.

Our mission is to provide our clients with quality craftsmanship at an equitable price, through a team of highly skilled and trained professionals using safe and innovative techniques. While supplying our employee owners with the knowledge and resources necessary for their success.

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Driveway Sealcoating questions, answered by experts

If your driveway has only small cracks, sealing them can prevent the damage from spreading. However, sealing the cracks will not necessarily improve the overall appearance of your driveway. For the best final result, fill the cracks first with filler, then seal the driveway and let it cure completely.

Fading color, visible cracks, or water pooling signal the need for sealing to prevent further damage.

Plan to seal your driveway between late spring (after the rains have slowed) and early fall, or when temperatures are 55 degrees Fahrenheit or higher. A warmer environment helps the sealant bond with the driveway. To ensure your driveway cures correctly, you should make sure no rain is in the forecast for at least 48 hours after sealing.

Asphalt is made of aggregate materials (sand, rocks, and gravel) and bitumen, a viscous, petroleum-based, waterproof substance. These materials are mixed together at extremely high temperatures to form asphalt.

It depends on the type of sealer. Some sealers can dry in as little as 4 hours, but many can take up to 48 hours to fully cure. To play it safe, don’t drive on your driveway for two days after sealing.

The Alton, NH homeowners’ guide to driveway sealcoating

From average costs to expert advice, get all the answers you need to get your job done.