Top-rated second story addition builders.

Get matched with top second story addition builders in Mahwah, NJ

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Second story addition builders in Mahwah

Avatar for AJ Perri

AJ Perri

4.30(
1,538
)

AJ Perri

4.30(
1,538
)
Customers say: Super punctual
55 years of experience

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"I paid an excessive amount of money to replace the heating system. The sales rep gave us comfort that everything will be done right and the two experienced and fully licensed professionals will be doing the work and that there is a no-excuse warranty, 1 degree guarantee, and 10 years on both the service and hardware. It just so happened that after the install, I told the installer I smelt gas and to check everything. He simply waved it off and said it's fine, give it some time. I told AJ Perri multiple times that there is a gas leak and I asked them to rectify the situation. I called them multiple times to send someone to fix the issue immediately and urgently, but they refused to commit to any resolution and won't send anyone until the gas is turned off for the whole building. I explained that its a condo and that the unit itself in the utility closet has a separate gas shutoff valve. Knowing this, they refused to remediate the gas leak."

Richard S on February 2026

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"I paid an excessive amount of money to replace the heating system. The sales rep gave us comfort that everything will be done right and the two experienced and fully licensed professionals will be doing the work and that there is a no-excuse warranty, 1 degree guarantee, and 10 years on both the service and hardware. It just so happened that after the install, I told the installer I smelt gas and to check everything. He simply waved it off and said it's fine, give it some time. I told AJ Perri multiple times that there is a gas leak and I asked them to rectify the situation. I called them multiple times to send someone to fix the issue immediately and urgently, but they refused to commit to any resolution and won't send anyone until the gas is turned off for the whole building. I explained that its a condo and that the unit itself in the utility closet has a separate gas shutoff valve. Knowing this, they refused to remediate the gas leak."

Richard S on February 2026


Scranton Contracting Company

No reviews yet

Scranton Contracting Company

No reviews yet
19 years of experience

Our company Employs 19 people and 8 different sub-contractors.. Billing is set such that, half the cost of the project is provided up front and the remainder is paid upon completion

Our company Employs 19 people and 8 different sub-contractors.. Billing is set such that, half the cost of the project is provided up front and the remainder is paid upon completion


Precision Tile, Marble & Stonework Inc.

5.00(
1
)

Precision Tile, Marble & Stonework Inc.

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

we take full responsibility for the completion of rack project, taking care to deliver the highest standards of quality we've come to be known for. It you believe your home construction and/or home remodeling project deserves nothing but the best, choose the trusted construction and masonry experts at Precision Tile, Marble & Stonework Imc. To deliver outstanding work that perfectly suits your needs. Tha work we deliver doesn't just look good, they also provide more value for your property and sure o stand the test of time .

we take full responsibility for the completion of rack project, taking care to deliver the highest standards of quality we've come to be known for. It you believe your home construction and/or home remodeling project deserves nothing but the best, choose the trusted construction and masonry experts at Precision Tile, Marble & Stonework Imc. To deliver outstanding work that perfectly suits your needs. Tha work we deliver doesn't just look good, they also provide more value for your property and sure o stand the test of time .


Pride Construction and Development Inc.

No reviews yet

Pride Construction and Development Inc.

No reviews yet

SALERNO'S KITCHEN CABINETS INC

No reviews yet

SALERNO'S KITCHEN CABINETS INC

No reviews yet
63 years of experience

Salerno's Kitchens has been an industry leader in custom cabinetry with nearly 50 years of exemplary service, reputation and design. Luciano Salerno has been the inspiration for the hard work and devotion that our team of designers and skilled professionals look forward every day to turn your ideas and desires into reality. Today, and after 51 years members of the Salerno family take pride in continuing the "old world" tradition of personally handling every aspect in the creation of custom cabinets and wood furnishings for those who believe that quality, combined with beauty is priceless

Salerno's Kitchens has been an industry leader in custom cabinetry with nearly 50 years of exemplary service, reputation and design. Luciano Salerno has been the inspiration for the hard work and devotion that our team of designers and skilled professionals look forward every day to turn your ideas and desires into reality. Today, and after 51 years members of the Salerno family take pride in continuing the "old world" tradition of personally handling every aspect in the creation of custom cabinets and wood furnishings for those who believe that quality, combined with beauty is priceless


Accent Improvements

3.33(
3
)

Accent Improvements

3.33(
3
)
18 years of experience

We are a general contractor so we do have subs that work with us. The advantage is that it is the same crews on every project that we do. We don't bid out jobs and get the cheapest company to do the work and keep the savings for us. We always have the same quality on every project we do.

We are a general contractor so we do have subs that work with us. The advantage is that it is the same crews on every project that we do. We don't bid out jobs and get the cheapest company to do the work and keep the savings for us. We always have the same quality on every project we do.


Efrains Handy Man Services

No reviews yet

Efrains Handy Man Services

No reviews yet
10 years of experience

I can do a little bit of everything. Whether its Carpentry, or electrical, Crown Molding, or bathroom installations.. I am your man!

I can do a little bit of everything. Whether its Carpentry, or electrical, Crown Molding, or bathroom installations.. I am your man!


Avatar for Cabinets Direct USA

Cabinets Direct USA

4.55(
29
)

Cabinets Direct USA

4.55(
29
)
Customers say: Quality work
91 years of experience

Cabinets Direct USA is a family owned and operated business founded in 1935. We are one of the largest and most well respected kitchen cabinet companies on the East Coast. We offer 9 prestigious cabinet lines to meet any budget and style, including Decora, UltraCraft, Diamond, WOLF Classic, WOLF Transition, Fabuwood, WOLF Designer, and CNC. We also offer a wide selection of exquisite countertops, including Granite, Caesarstone, Cambria, Silestone, Viatera, Zodiaq, Corian, Formica, and Wilsonart. We have 6 beautiful showrooms throughout the state of New Jersey in Paramus, Wayne, Livingston, Toms River, Orange, and West Long Branch. We offer Free Design, Free Estimates, and Free Knobs. We have a written Lowest Price Guarantee. We offer No Interest Financing, No Down Payments. We are also the exclusive kitchen cabinet provider for the 'Buyers Edge', which offers lowest price guarantees to its many members. We look forward to working with you on your new kitchen/bathroom!

"Our experience with Cabinets Direct, and the salesman Frank at the Orange location, was very disappointing. We first met with Frank in late July, but our order wasn't actually placed until late August. When we asked about the delays in getting the cabinets ordered, Franks response was that new customers were coming in and he "couldn't turn down work" - at the expense of existing customers like us. We did not receive the last of our cabinets until mid-November, four months after initial contact. Since replacing cabinets was only one part of our renovation, this had a domino effect that resulted is us living in an unfinished house with no way to prepare food for weeks. Even after the cabinets finally came, there have been issues. Frank ordered the wrong color trim for the top of the cabinets, so it took another two weeks for replacement parts to arrive. Our microwave, which we gave him the dimensions of in advance, didn’t fit in the space provided, so we had to buy a different (smaller and less powerful) one. Finally, our dishwasher hits the handle over our stove when we open it all the way. In the interest of full disclosure, the national customer service reps for Cabinets Direct that we worked with after the order was in were very friendly and helpful during the long process. However, given the very high price-point for these cabinets, being told our order was being delayed so Frank could talk to new customers before finishing our order and thereby delaying our cabinets is unacceptable. Our entire renovation was significantly delayed as a result, and without a functioning kitchen we had no option other than to eat out for every meal, for weeks. We would not recommend this salesman, or company. We don’t expect the royal treatment, but these were expensive cabinets and we at least expected basic competence, and we did not get that."

Peter C on January 2018

Cabinets Direct USA is a family owned and operated business founded in 1935. We are one of the largest and most well respected kitchen cabinet companies on the East Coast. We offer 9 prestigious cabinet lines to meet any budget and style, including Decora, UltraCraft, Diamond, WOLF Classic, WOLF Transition, Fabuwood, WOLF Designer, and CNC. We also offer a wide selection of exquisite countertops, including Granite, Caesarstone, Cambria, Silestone, Viatera, Zodiaq, Corian, Formica, and Wilsonart. We have 6 beautiful showrooms throughout the state of New Jersey in Paramus, Wayne, Livingston, Toms River, Orange, and West Long Branch. We offer Free Design, Free Estimates, and Free Knobs. We have a written Lowest Price Guarantee. We offer No Interest Financing, No Down Payments. We are also the exclusive kitchen cabinet provider for the 'Buyers Edge', which offers lowest price guarantees to its many members. We look forward to working with you on your new kitchen/bathroom!

"Our experience with Cabinets Direct, and the salesman Frank at the Orange location, was very disappointing. We first met with Frank in late July, but our order wasn't actually placed until late August. When we asked about the delays in getting the cabinets ordered, Franks response was that new customers were coming in and he "couldn't turn down work" - at the expense of existing customers like us. We did not receive the last of our cabinets until mid-November, four months after initial contact. Since replacing cabinets was only one part of our renovation, this had a domino effect that resulted is us living in an unfinished house with no way to prepare food for weeks. Even after the cabinets finally came, there have been issues. Frank ordered the wrong color trim for the top of the cabinets, so it took another two weeks for replacement parts to arrive. Our microwave, which we gave him the dimensions of in advance, didn’t fit in the space provided, so we had to buy a different (smaller and less powerful) one. Finally, our dishwasher hits the handle over our stove when we open it all the way. In the interest of full disclosure, the national customer service reps for Cabinets Direct that we worked with after the order was in were very friendly and helpful during the long process. However, given the very high price-point for these cabinets, being told our order was being delayed so Frank could talk to new customers before finishing our order and thereby delaying our cabinets is unacceptable. Our entire renovation was significantly delayed as a result, and without a functioning kitchen we had no option other than to eat out for every meal, for weeks. We would not recommend this salesman, or company. We don’t expect the royal treatment, but these were expensive cabinets and we at least expected basic competence, and we did not get that."

Peter C on January 2018


ULTIMATE VISIONS LLC

1.00(
2
)

ULTIMATE VISIONS LLC

1.00(
2
)

COST IS DETERMINED BY THE JOB.

COST IS DETERMINED BY THE JOB.


Avatar for Double D Construction

Double D Construction

4.94(
93
)

Double D Construction

4.94(
93
)
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Double D Construction has been serving Central New Jersey since 1995. We do complete residential and commercial construction, following up with you after the job is complete to make sure everything is done to your satisfaction. Our staff takes pride in the quality of our workmanship and provides custom designed service to meet your every need. Award winning.

"Just a few years ago, we hired Double D to remove all of the old bright yellow siding (40 years old) and remove both layers of old roofing. The goal was to replace the roof and figure out the best options for us regarding the siding. The owner came out, met with us, presented options and associated costs quite clearly. Ultimately, we choose a lovely shade of sage green siding and a gray roof. We could not be happier. The employees were polite and efficient. The work was done in a timely manner (less than two weeks) and still looks great. We had zero problems with Double D. I plan on using them again to update a section of the siding that had previously been covered by a back deck. IMPORTANT NOTE: My neighbors replaced their siding with another company even though we advised them that Double D’s pricing was spot on and extremely professional, with attention to detail. Five months after their siding was installed, huge swaths of siding fell off! And their contractor was no where to be found. That’s when they asked for Double D! You will not regret utilizing Double D and will appreciate the variety of services available."

Cj F on July 2023

Double D Construction has been serving Central New Jersey since 1995. We do complete residential and commercial construction, following up with you after the job is complete to make sure everything is done to your satisfaction. Our staff takes pride in the quality of our workmanship and provides custom designed service to meet your every need. Award winning.

"Just a few years ago, we hired Double D to remove all of the old bright yellow siding (40 years old) and remove both layers of old roofing. The goal was to replace the roof and figure out the best options for us regarding the siding. The owner came out, met with us, presented options and associated costs quite clearly. Ultimately, we choose a lovely shade of sage green siding and a gray roof. We could not be happier. The employees were polite and efficient. The work was done in a timely manner (less than two weeks) and still looks great. We had zero problems with Double D. I plan on using them again to update a section of the siding that had previously been covered by a back deck. IMPORTANT NOTE: My neighbors replaced their siding with another company even though we advised them that Double D’s pricing was spot on and extremely professional, with attention to detail. Five months after their siding was installed, huge swaths of siding fell off! And their contractor was no where to be found. That’s when they asked for Double D! You will not regret utilizing Double D and will appreciate the variety of services available."

Cj F on July 2023

...
Showing 1-10 of 1008
FAQs for second story addition building service projects in Mahwah, NJ

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Mahwah, NJ homeowners’ guide to second story addition building services

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