Top-rated driveway sealcoating pros.

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There are 5 highly-rated local driveway sealcoating pros.

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TRUSTED BY ALTON, NH HOMEOWNERS

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

Find Driveway sealcoating pros in Alton

"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 E&J HARDSCAPING & LANDSCAPING INC.

E&J HARDSCAPING & LANDSCAPING INC.

56 Newburyport Turnpike
5.00(
17
)

E&J HARDSCAPING & LANDSCAPING INC.

56 Newburyport Turnpike
5.00(
17
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We pride ourselves on delivering the highest quality workmanship with professionalism and respect on every project. Specializing in all phases of commercial and residential hardscaping and landscaping—including patios, retaining walls, walkways, lawn care, and seasonal cleanups—we are dedicated to achieving exceptional results with a focus on precision and durability. Beyond construction, we are committed to supporting and serving our local community. We look forward to bringing your outdoor vision to life.

"Very good and excellent professional with a pleasant attitude and friendly for you budget and large and small project"

Raymond O on September 2025

We pride ourselves on delivering the highest quality workmanship with professionalism and respect on every project. Specializing in all phases of commercial and residential hardscaping and landscaping—including patios, retaining walls, walkways, lawn care, and seasonal cleanups—we are dedicated to achieving exceptional results with a focus on precision and durability. Beyond construction, we are committed to supporting and serving our local community. We look forward to bringing your outdoor vision to life.

"Very good and excellent professional with a pleasant attitude and friendly for you budget and large and small project"

Raymond O on September 2025


Avatar for JonCrete

JonCrete

27 A Bell St
No reviews yet

JonCrete

27 A Bell St
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


We expert in commercial and residential paving , excavating and seal coating. We provide 100% folding shirt and guaranteed work.


Avatar for Clark Co

Clark Co

31 Worthley Ave
4.33(
6
)

Clark Co

31 Worthley Ave
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

103 Ward St
No reviews yet

Candido Services LLC

103 Ward St
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.


Cuccias Asphalt

336 Old Concord Tpke
3.83(
6
)

Cuccias Asphalt

336 Old Concord Tpke
3.83(
6
)
Customers say: True professional

Cuccias Asphalt is a family owned business we offer free estimates are fuly insured and the owner Thomas is on all jobs from start to finish.

"NOT GOOD!!!!! They came to me looking for work and i provided work for them. They started off acting nice and trying to be polite.Long story short they convinced my to pay before the work was complete, When i question them they said we'll leave everything here, even offered to give me the keys to the paver. I should of took them. Because they came back the next morning loading up and never brought it back. Instead sent two guys in a pickup with shovels, racks and what look to be a 12" hand held vibrator to finish a spot appx 20' x 12'. There's footprints and many other poor workmanship eussies they said could and would be fixed .When ask multiply times when are you coming to make repairs. They either said today after we get done with another job or first thing in the morning. Which they never did (liars) Needless to say it looks like **** and after days of calling THEY NEVER CAME BACK"

Steve M on August 2024

Cuccias Asphalt is a family owned business we offer free estimates are fuly insured and the owner Thomas is on all jobs from start to finish.

"NOT GOOD!!!!! They came to me looking for work and i provided work for them. They started off acting nice and trying to be polite.Long story short they convinced my to pay before the work was complete, When i question them they said we'll leave everything here, even offered to give me the keys to the paver. I should of took them. Because they came back the next morning loading up and never brought it back. Instead sent two guys in a pickup with shovels, racks and what look to be a 12" hand held vibrator to finish a spot appx 20' x 12'. There's footprints and many other poor workmanship eussies they said could and would be fixed .When ask multiply times when are you coming to make repairs. They either said today after we get done with another job or first thing in the morning. Which they never did (liars) Needless to say it looks like **** and after days of calling THEY NEVER CAME BACK"

Steve M on August 2024

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Driveway Sealcoating questions, answered by experts

Unlike drying, which takes between 48 and 72 hours on average, asphalt driveway cure times are different and take much longer. Your asphalt driveway won’t actually cure for around six months to one year. During this time, it’s more likely to get damaged or weakened by heavy machinery, vehicles, and high temperatures. 

Sealant comes in 5-gallon buckets that can cover up to 400 square feet. Measure your driveway to get the exact square footage, and remember to factor in enough sealant for two coats.

Yes, it’s possible to seal your driveway too much. Whether you have an asphalt or concrete driveway, sealing it every year opens your driveway to potential damage. Sealing an asphalt driveway annually may cause the seal to crack and peel even more. It may even trap oils within the asphalt that can leave you driving on a soft driveway. Avoid sealing your concrete driveway too much to prevent the concrete from cracking. If water enters these cracks, it can freeze, expand, and cause the cracks to worsen.

Maintaining a driveway depends on the material your driveway is made of. Concrete and asphalt should be sealed to protect against water and freeze-thaw cycles. Cracks and expansion joints should be filled with a flexible polyurethane caulk or asphalt sealer. Before you apply a sealant to your driveway, consider pressure washing the surface. It will take off any loose sealant and any grime that might have caused a stain. Sealing over dirt and stains will trap it under the sealer.

If you live in colder climates, consider using sand rather than salt to de-ice. Sand helps melt the snow and ice without speeding up the freezing and unthawing process of your driveway, which helps prevent cracks from forming from the constant fluctuation of temperatures.

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.

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.

What do you need done? We’ll find top pros.
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