Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Nassau, NY

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 Addition to existing structure builders in Nassau

Avatar for MFX Development llc
MFX Development llc
5.0(
7
)
Addition to Existing Structure - Build

Serving Nassau, NY and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"The work went well and I was thoroughly pleased. Matt has a great work ethic — he was dependable and worked hard to complete the job in time, doing excellent work. He takes pride snd care in his work snd it shows. I recommend Fission with no reservations and will use again, if needed."
Remodeling - General Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+14

Response time2 days
Response rate100%
9 neighbors recently requested a quote
Bowen Ridge Construction
5.0(
8
)
Addition to Existing Structure - Build

Serving Nassau, NY and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Fantastic! Bowen Ridge Construction has a great team! They know how to get the job done! They get right to the task and do an amazing job. We were amazed as to how much they were able to accomplish in the time frame that they had! Quality work. Highly recommend! Can’t wait for them to be back for our next renovations!"
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+106

3 neighbors recently requested a quote
Recommended by100%of homeowners
Regeneration Contracting, LTD
4.6(
20
)
Addition to Existing Structure - Build

Serving Nassau, NY and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quality work

"Shawn was very knowledgeable and very professional. The bathroom remodel was the master bathroom that was small so only one person could work on it but it was done within a week. He was able to keep everything neat and contained and the finished product looks great! The cost was also very reasonable and at the low end of what we had expected to pay."
Cabin
Kitchen and Cabinets
Bathrooms
Decks and Steps
Bathroom

+96

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Artie's Home Maintenance and Property Services
Artie's Home Maintenance and Property Services
4.5(
41
)
Addition to Existing Structure - Build

Serving Nassau, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Artie was exceptionally professional and knowledgeable in a vast array of services. Artie worked for me for over 7 years preforming tasks that varied from converting a small shed to a luxury air bnb, remodeling apartment buildings, restructuring and replacing a large porch, installing washer and dryers as well as dishwashers, and various small home projects. Artie was always punctual and reliable. He completed all jobs in a timely and effective manner. He also fixed projects that were done improperly by other contractors. I also found him to be cost effective in every way. Saving myself time, money, and energy upon every job that I hired him for. Artie still works for me to this day. Heâ s my go to for just about anything and everything!"
Response time8 hrs
3 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Gooshaw Construction Services
Gooshaw Construction Services
5.0(
9
)
Addition to Existing Structure - Build

Serving Nassau, NY and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"I had several projects I needed completed. Gooshaw Construction responded to my Anji inquiry regarding a bathroom remodel. We made appt. within days to meet and explain what I wanted. They showed up exactly as set up and listened to exactly what I wanted. Long story short bathroom remodel, kitchen and foyer upgrade, new fencing, deck powered washed and painted later I can whole heartedly endorse Gooshaw Construction. At each stage i was presented with a complete quote including pricing and timeline. In all phases they completely followed as agreed and with an eye for detail and integrity. I highly recommend."
Response time2 days
Response rate89%
Recommended by77%of homeowners
Anderson Construction Corporation
New to Angi
Addition to Existing Structure - Build

Serving Nassau, NY and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

A.C.C. is a family-owned full service residential remodeling corporation. We take pride in our dependability and ensuring that you can count on us to complete the job in a timely manner... Because building your dream home, shouldn't have to be a nightmare. At present we are specializing in residential remodeling and home improvements. A.C.C. is fully insured and MBE Certified.

2 neighbors recently requested a quote
Avatar for Stoney Brook R&D LLC
Stoney Brook R&D LLC
4.7(
17
)
Addition to Existing Structure - Build

Serving Nassau, NY and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Sharif Mohamed and his crew did exactly what they said and did it perfectly. My new porch is cute, sturdy, and functional. It’s so nice to work with a polite, timely, and responsible contractor who does quality work. I will be having them back to replace the front porch next. Well done."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+59

Recommended by94%of homeowners
Avatar for L & H Construction Company
L & H Construction Company
4.5(
66
)
Addition to Existing Structure - Build

Serving Nassau, NY and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"My experience with L&H construction company could not have gone any better. They took on a roofing job that many other companies were unwilling to take on and at a very reasonable price. The owner kept in contact with me and was very responsive and addressed all of my concerns. Additionally, the job was completed in a timely manner and the roof on my shed came out looking great. I would definitely recommend L&H and would not hesitate to use them again for my roofing needs."
Picture Frame Design Deck #1
Picture Frame Design Deck #2
Custom 2nd Story Deck
Custom 2nd Story Deck #2
Custom Borla Rosetta Stone Bay Window

+4

Recommended by88%of homeowners
Avatar for Shapiro Construction
Shapiro Construction
4.5(
24
)
Addition to Existing Structure - Build

Serving Nassau, NY and surrounding areas

In business since 2012

Free estimates

Warranties offered

"Dan did an excellent job of repairing some log rot that was in a critical location of the structure He was thoughtful, creative and thorough. He also repaired the part of my deck that was partially responsible for the log damage. Ok pricing was very fair I will be contacting Dan for remodeling work in the future"
Handymen Project
Handymen Project
Remodeling - General Project
Heating & A/C Project
Remodeling - General Project

+52

Response time1 day
Recommended by95%of homeowners
...
Showing 1-10 of 154
FAQs for addition to existing structure building service projects in Nassau, NY

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Nassau, NY homeowners’ guide to addition to existing structure building services

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