Get matched with top patio pros in Londonderry, NH

Q: How much do stairs cost?

• <div><p>The short answer is that the <a href="https://www.angi.com/articles/how-much-does-building-stairs-and-railings-cost.htm">cost to build a staircase</a> largely depends on what material they&rsquo;re made out of and how many you need. Wood stairs cost about <b>$50 to $100 per step</b> for materials alone, while labor costs an additional<b> $100 to $250 per step</b>. The cost increases for more expensive materials such as glass or concrete. </p></div>

Q: How long should I wait to walk or drive on the repaired area?

• <div><p>If you used regular jointing sand, you can typically walk on the repaired area right away. If you used polymeric sand, wait at least <b>24 hours</b> before walking on it and <b>48 to 72 hours</b> before driving over it, depending on the weather. Polymeric sand needs time to fully cure and lock the pavers in place.</p></div>

Q: How much does a 20x20 concrete patio cost?

• <div><p>On average, expect to pay $2,400 to $6,400 for a 20-by-20-foot concrete patio. That price includes concrete materials, labor rates, sealing, and permits. With more complex designs and premium materials and finishes, the cost may be higher. Get quotes from multiple <a href="https://www.angi.com/nearme/concrete-patio-companies/">local patio contractors</a> to get a precise estimate for your area. </p></div>

Q: What is the cost to remove a load-bearing wall and add an entrance to a carport or patio?

• <div><p>If you remove a load-bearing wall to create an entrance to a carport or covered patio, you can expect to pay between $3,200 and $9,500, with an average cost of $6,400. Factors such as the type of addition and if that area needs additional work will add to the price.</p></div>

Q: What size gravel should you put under a concrete slab?

• <div><p>You should put gravel that is 3/4 to 1 inch under a concrete slab. However, depending on the project, local building codes may dictate the proper gravel size and shape. Some concrete slabs that do not hold significant weight may have a subbase of sand. Also, keep in mind that the subbase you choose will affect the <a href="https://www.angi.com/articles/how-much-does-concrete-patio-cost-square-foot.htm">cost of your concrete patio</a>, walkway, or driveway. </p></div>

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Verified Reviews for Patio Service pros in Londonderry, NH

*The Angi rating for Patio Service companies in Londonderry, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Patio Service needs.

*The HomeAdvisor rating for Patio Service companies in Londonderry, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Patio Service needs.

Last update on November 19, 2025

Reviewed in August 2024
Jeremy did a fabulous job cleaning the moss off of my patio pavers and filling it in with polysand. He pays great attention to detail and I would hire him again!
East Gate Hard Scape
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Reviewed in July 2024
Great job and timely. I Highly recommend this company!Bulit an outdoor patio
3 Brothers Masonry
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Reviewed in May 2024
It has been three years and we are still fixing the mistakes made by North Atlantic. Not only did they not listen when we were originally installing the patio, graded the patio into our garage (fun when it rains), they have ruined a large portion of our yard and our garden by extending the sand,...
North Atlantic Landscape
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Reviewed in March 2024
Ellite Construction Masonry recently completed the installation of a lovely paved patio at our home. They worked diligently and tirelessly for three weeks to create a gorgeous patio. We are quite pleased with the final product and would strongly suggest these professionals. They put in long...
Ellite Construction Masonry
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Reviewed in September 2023
They were very professional . They showed up and worked hard. They were willing to work with us and make the changes that we wanted. They responded to our phone calls in a timely manner. They left the property very clean. Our patio and fire pit are beautiful! I The quality of their job was...
Martin Landscaping and Construction
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Reviewed in August 2023
Goni and his brother came over as soon as they had a spot in their schedule to reset sunken pavers in our patio and front walk. Their estimate was very reasonable and the results were fantastic.
European Brothers Masonry Construction Llc
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Reviewed in July 2023
Bobby was great through the whole experience, helpfully with questions very detail oriented and professional. Would highly recommend for a patio project
Tun Tavern Masonry
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Reviewed in April 2023
JP and his crew built a beautiful wall and installed a patio that exceeded my expectations. They finished before the original time frame and cleaned up thoroughly.
Rock Man Masonry
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Reviewed in August 2022
Fantastic work . We absolutely love our new patio and canâ t recommend them enough. Competitively price, reliable and friendly.
C&T Masonry
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Reviewed in June 2017
Patio and driveway done on time. Good work and fair price.
MHT Paving and Landscaping
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