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Find Second story addition builders in Hillsdale

BDK Construction LLC.

No reviews yet

BDK Construction LLC.

No reviews yet
19 years of experience

Growing construction company able to complete all phases of new and old construction

Growing construction company able to complete all phases of new and old construction


Project Management Inc.

No reviews yet

Project Management Inc.

No reviews yet
12 years of experience

Don't start your renovation project without consulting with Project Management Inc. We protect you against cost over runs, delays and contractor mistakes.

Don't start your renovation project without consulting with Project Management Inc. We protect you against cost over runs, delays and contractor mistakes.


Avatar for AJ Perri

AJ Perri

4.31(
1,534
)

AJ Perri

4.31(
1,534
)
Customers say: Super punctual
54 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

"After my bathroom faucet broke, I scheduled an appointment for today 12/16/25 between 12-4. A representative called at 3ish to report the plumber was running late. At 5pm still noone I called, got voicemail, 6pm still noone and no call I called got voicemail at 7pm still noone I call get the voicemail it?s now 10pm No more calls from me! What a unprofessional company never again and never will anyone I know reach out to them for service! "

Debra T on December 2025

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

"After my bathroom faucet broke, I scheduled an appointment for today 12/16/25 between 12-4. A representative called at 3ish to report the plumber was running late. At 5pm still noone I called, got voicemail, 6pm still noone and no call I called got voicemail at 7pm still noone I call get the voicemail it?s now 10pm No more calls from me! What a unprofessional company never again and never will anyone I know reach out to them for service! "

Debra T on December 2025


Project Management Consultants LLC

No reviews yet

Project Management Consultants LLC

No reviews yet
36 years of experience

European craftsmanship and upstanding work in most home improvement and repair categories. No outsourcing, we do the work.

European craftsmanship and upstanding work in most home improvement and repair categories. No outsourcing, we do the work.


MCM Construction

No reviews yet

MCM Construction

No reviews yet

ALL RENOVATION

4.00(
4
)

ALL RENOVATION

4.00(
4
)
Customers say: Quick response
20 years of experience

ADDITIONAL EMAIL ADDRESS: ALLRENOVATION@CS.COM

ADDITIONAL EMAIL ADDRESS: ALLRENOVATION@CS.COM


Contractor Sandoval Carpentry & Painting

No reviews yet

Contractor Sandoval Carpentry & Painting

No reviews yet
23 years of experience

Our business is ran by the boss Atilano Sandoval, who is the person in charged of leading the job. Whom ever is working on any of our jobs responds to Atilano. We are perfectionist, all work done by us is completely professional and as neat as possible. You can make payments by check or cash. We do payment plans while we are getting the job done. Once the job is completely done, all payment should be made.

Our business is ran by the boss Atilano Sandoval, who is the person in charged of leading the job. Whom ever is working on any of our jobs responds to Atilano. We are perfectionist, all work done by us is completely professional and as neat as possible. You can make payments by check or cash. We do payment plans while we are getting the job done. Once the job is completely done, all payment should be made.


EuroPro Construction Corp.

No reviews yet

EuroPro Construction Corp.

No reviews yet

JSP Home Improvement Contractors

No reviews yet

JSP Home Improvement Contractors

No reviews yet
Free onsite estimate

Here at JSP Home Improvement Contractors, we take pride in providing the best services and satisfying our customer needs. We specialize in Home Improvement Store, Home Improvement Contractor, Bathroom Remodeler, Handyman, Custom Home Remodeling Contractors, Renovations, Water Damage Restoration Service, Small Home Improvement Projects, Residential Remodeling Services, Kitchen Remodeler, Custom Roo

Here at JSP Home Improvement Contractors, we take pride in providing the best services and satisfying our customer needs. We specialize in Home Improvement Store, Home Improvement Contractor, Bathroom Remodeler, Handyman, Custom Home Remodeling Contractors, Renovations, Water Damage Restoration Service, Small Home Improvement Projects, Residential Remodeling Services, Kitchen Remodeler, Custom Roo


ULTIMATE VISIONS LLC

1.00(
2
)

ULTIMATE VISIONS LLC

1.00(
2
)

COST IS DETERMINED BY THE JOB.

COST IS DETERMINED BY THE JOB.

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FAQs for second story addition building service projects in Hillsdale, 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 Hillsdale, 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.