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Demolition pros in Merrimack

Avatar for Quantum Contracting, LLC

Quantum Contracting, LLC

382 Colby Hill Road
4.84(
28
)
•Approved Pro

Quantum Contracting, LLC

382 Colby Hill Road
4.84(
28
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
10 years of experience

Quantum Contracting, LLC, is proud to serve Southern NH with professional, quality construction services. If you're searching for a contractor, who puts your needs at the top of the priority list, our company is the premier choice in the area. Whether you are a homeowner or business owner, our professional team will get the job done quickly and right the first time. When you contact us, you'll be given the exceptional customer service you deserve, including free quotes, up-front pricing, and no hidden fees. These benefits are provided to our clients in order to show that our company genuinely cares about customer satisfaction. Give us a call today to schedule your free estimate!

"Excellent to work with. I would hire them again in a heart beat. Great craftsmanship and courtesy. Would highly recommend for your projects!"

Sandra W on September 2022

Quantum Contracting, LLC, is proud to serve Southern NH with professional, quality construction services. If you're searching for a contractor, who puts your needs at the top of the priority list, our company is the premier choice in the area. Whether you are a homeowner or business owner, our professional team will get the job done quickly and right the first time. When you contact us, you'll be given the exceptional customer service you deserve, including free quotes, up-front pricing, and no hidden fees. These benefits are provided to our clients in order to show that our company genuinely cares about customer satisfaction. Give us a call today to schedule your free estimate!

"Excellent to work with. I would hire them again in a heart beat. Great craftsmanship and courtesy. Would highly recommend for your projects!"

Sandra W on September 2022

Avatar for SPERO BROTHERS CONSTRUCTION LLP

SPERO BROTHERS CONSTRUCTION LLP

31 Westville Road Unit #4
4.98(
23
)
•Approved Pro

SPERO BROTHERS CONSTRUCTION LLP

31 Westville Road Unit #4
4.98(
23
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
17 years of experience

With over 50 years of experience in the Concrete & Masonry industry, SPERO BROTHERS CONSTRUCTION LLP is your industry expert in Plaistow. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

"Great experience. Building demolition job completed in 1 day. Excellent work and cleanup. Would definitely use them again without hesitation."

Frank J G on July 2025

With over 50 years of experience in the Concrete & Masonry industry, SPERO BROTHERS CONSTRUCTION LLP is your industry expert in Plaistow. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

"Great experience. Building demolition job completed in 1 day. Excellent work and cleanup. Would definitely use them again without hesitation."

Frank J G on July 2025

Avatar for Fox Wild Masonry LLC

Fox Wild Masonry LLC

4 Leggy Lane Dr
5.00(
4
)
•Approved Pro

Fox Wild Masonry LLC

4 Leggy Lane Dr
5.00(
4
)
•Approved Pro
1 years of experience
Free onsite estimate

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

"Absolutely spectacular- a contractor I’m actually happy to recommend! The project was finished faster than the estimated timeline and completely on budget. Damon is very kind, communicative, and knows his stuff! I already have another project lined up for him in the spring. "

Tom W on July 2025

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

"Absolutely spectacular- a contractor I’m actually happy to recommend! The project was finished faster than the estimated timeline and completely on budget. Damon is very kind, communicative, and knows his stuff! I already have another project lined up for him in the spring. "

Tom W on July 2025

Avatar for Carideo Services

Carideo Services

46 Sachs Rd
4.95(
22
)
•Approved Pro

Carideo Services

46 Sachs Rd
4.95(
22
)
•Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Frank was so efficient Expert in what he does He couldn’t have been any nicer He went over and above and did what we needed I can’t thank him enough I would call him again and I would say Others can be sure he’ll get the job done and do it right He gave such good advice on the project"

Carol W on September 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Frank was so efficient Expert in what he does He couldn’t have been any nicer He went over and above and did what we needed I can’t thank him enough I would call him again and I would say Others can be sure he’ll get the job done and do it right He gave such good advice on the project"

Carol W on September 2025

Avatar for Ikon Imports LLC

Ikon Imports LLC

154 Heather Hill Ln
5.00(
7
)
•Approved Pro

Ikon Imports LLC

154 Heather Hill Ln
5.00(
7
)
•Approved Pro
7 years of experience
Free onsite estimate

At Ikon Imports LLC, we provide expert junk removal, demolition, construction clean-up, and trash pickup services with a focus on reliability, transparency, and top-quality results. Whether you're tackling a home renovation or just need a quick cleanup, our team is here to make the process seamless and stress-free. We take pride in our strong communication, ensuring you're always in the loop and fully informed about your project every step of the way. With our commitment to integrity and outstanding service, we aim to build lasting relationships with our clients. We look forward to the opportunity to serve you and earn your trust!

"I found myself in a very unique and unfortunate situation that was resulting in serious fines and threats from the city. The state provided me resources to get out of this situation as it needed to be done in a timely manner and was not in the realm of most disposal companies descriptions. Through Angie's list I found this company, not only were they on the phone but they even came out and did a pre-sight inspection, they scheduled service in a timely manner and worked with us in every way they could! They went above and beyond to rescue us and provide a full service. They got the massive job done in only 2 hours, cleaned up when they left, made attempts to make the area more presentable despite weather having been the cause, and even cut some stumps and took additional waste not listed with them! 10/10 would recommend this company, provided their information to my contact at the state in this matter, and I will be working with this company again for my future needs!"

Rheana L on April 2025

At Ikon Imports LLC, we provide expert junk removal, demolition, construction clean-up, and trash pickup services with a focus on reliability, transparency, and top-quality results. Whether you're tackling a home renovation or just need a quick cleanup, our team is here to make the process seamless and stress-free. We take pride in our strong communication, ensuring you're always in the loop and fully informed about your project every step of the way. With our commitment to integrity and outstanding service, we aim to build lasting relationships with our clients. We look forward to the opportunity to serve you and earn your trust!

"I found myself in a very unique and unfortunate situation that was resulting in serious fines and threats from the city. The state provided me resources to get out of this situation as it needed to be done in a timely manner and was not in the realm of most disposal companies descriptions. Through Angie's list I found this company, not only were they on the phone but they even came out and did a pre-sight inspection, they scheduled service in a timely manner and worked with us in every way they could! They went above and beyond to rescue us and provide a full service. They got the massive job done in only 2 hours, cleaned up when they left, made attempts to make the area more presentable despite weather having been the cause, and even cut some stumps and took additional waste not listed with them! 10/10 would recommend this company, provided their information to my contact at the state in this matter, and I will be working with this company again for my future needs!"

Rheana L on April 2025

FAQs for demolition projects in Merrimack, NH

To determine if a wall is load-bearing, start by checking your home’s original plans or asking a structural engineer. Exterior walls always carry weight, but interior ones only do if they sit over a beam or run perpendicular to floor joists. If a wall lines up with posts in the basement or falls directly under the roof ridge, assume it’s load-bearing and call a professional before attempting to remove it with a sledgehammer.

Calculating the wall load and sizing the beam must be performed by experts to ensure structural safety. You need a structural engineer to evaluate all load aspects and determine the proper beam dimensions. A professional engineer performs precise calculations and advises on any necessary enhancements, such as larger footings for support. An inspector then verifies that the revised structure meets all safety and code regulations before the finishing work begins.

Hiring a structural engineer is essential for ensuring your home remains structurally sound during any major renovation. Their responsibility is to deliver expert assessments and design recommendations for load-bearing modifications. The average cost to hire a structural engineer is $500, with rates ranging from $350 to $800. Consulting a licensed, experienced engineer guarantees that every structural project, whether constructing a new home or remodeling an existing one, is completed safely and efficiently.

Almost all load-bearing wall removals require a permit as they support everything above it, and building departments want proof that the new beam can handle the weight. Pulling a permit triggers plan review and inspections that confirm the work meets local code and safety standards. Skipping this step can lead to fines or being forced to rebuild later, so have your contractor pull the permit before work starts.

Removing a load-bearing wall to create an entrance for a carport or covered patio is a task that comes with defined cost implications. This modification requires extra structural adjustments to ensure safety and proper integration with the adjoining space. When you convert a wall into an entryway, you can expect to pay between $3,200 and $9,500, with an average cost of $6,400. The additional work required for this conversion reinforces the home’s integrity and ensures compliance with applicable building codes.

The Merrimack, NH homeowners’ guide to demolitions

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

See all articles