
Get matched with top treehouse builders in Sag Harbor, NY
There are 6 highly-rated local treehouse builders.
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Verified Reviews for Treehouse Building pros in Sag Harbor, NY
*The Angi rating for Treehouse Building companies in Sag Harbor, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Treehouse Building needs.
*The HomeAdvisor rating for Treehouse Building companies in Sag Harbor, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Treehouse Building needs.
Last update on November 26, 2025
Find Treehouse builders in Sag Harbor
Non Stop Home Improvements Inc
Non Stop Home Improvements Inc
**WINTER SPECIAL: $99 ROOF MAINTENANCE!** With almost 20 years in the industry, locally owned and operated Non Stop Home Improvements Inc. is your #1 choice for all of your roofing and siding projects. Specializing in all things roofing and siding, we take pride in our work and make customer satisfaction our main focus. Call us today for your FREE ESTIMATE! We look forward to earning your business! Check us out of InstaGram and Facebook! www.nonstophome.com
"Very smooth highly recommend"
Anthony G on March 2025
**WINTER SPECIAL: $99 ROOF MAINTENANCE!** With almost 20 years in the industry, locally owned and operated Non Stop Home Improvements Inc. is your #1 choice for all of your roofing and siding projects. Specializing in all things roofing and siding, we take pride in our work and make customer satisfaction our main focus. Call us today for your FREE ESTIMATE! We look forward to earning your business! Check us out of InstaGram and Facebook! www.nonstophome.com
"Very smooth highly recommend"
Anthony G on March 2025

Magic Improvement, LLC
Magic Improvement, LLC
We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!
"We had a few jobs including grouting of shower, reinforcing kitchen cabinets and making a wall opening in our laundry room. Angel and his workers are truly professional, friendly and hard working. They were perfectionists."
John F on October 2025
We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!
"We had a few jobs including grouting of shower, reinforcing kitchen cabinets and making a wall opening in our laundry room. Angel and his workers are truly professional, friendly and hard working. They were perfectionists."
John F on October 2025

JA Carpentry Works LLC
JA Carpentry Works LLC
Our company prides itself on reliability, integrity and quality work. When JA Carpentry Works, LLC, is hired, we make it a point to provide the highest level of customer service. We work with both residential and commercial clients, and apply the same attention to detail regardless of project size or complexity. Whether you need a small repair or NEW Renovation JA Carpentry Works, LLC, is the company to call. We look forward to earning your business! Thank you!
"Excellent job in a very professional manner. Javier was courteous and very responsive and on top of things I would recommend this company and him."
nitsana s on November 2023
Our company prides itself on reliability, integrity and quality work. When JA Carpentry Works, LLC, is hired, we make it a point to provide the highest level of customer service. We work with both residential and commercial clients, and apply the same attention to detail regardless of project size or complexity. Whether you need a small repair or NEW Renovation JA Carpentry Works, LLC, is the company to call. We look forward to earning your business! Thank you!
"Excellent job in a very professional manner. Javier was courteous and very responsive and on top of things I would recommend this company and him."
nitsana s on November 2023

All Furniture Services® Repair & Restoration
All Furniture Services® Repair & Restoration
The Professional Team of All Furniture Services® Repair & Restoration is capable of handling, as well as carrying everything necessary to provide immediate on-site furniture disassembling, assembling and all repairs, on wood, leather, vinyl, fabric, upholstery, restorations of antiques, metal, stone, and mechanisms. Methods and products are chosen to make their repairs permanent, invisible and to return furniture to its original or even better condition. On-site or in-shop services offered to all: Manufactures, Stores, Vendors, Warehouses, Designers, Hotels, Restaurants, Construction, Moving, Insurance Companies as well as Individual Customers. We have been at the forefront of the Antique and Modern Repair & Restoration.
"Dmytro is a pro!! He worked very hard to get my recliner back in shape!! Great job Dmytro! Thanks again."
Nancy b on September 2025
The Professional Team of All Furniture Services® Repair & Restoration is capable of handling, as well as carrying everything necessary to provide immediate on-site furniture disassembling, assembling and all repairs, on wood, leather, vinyl, fabric, upholstery, restorations of antiques, metal, stone, and mechanisms. Methods and products are chosen to make their repairs permanent, invisible and to return furniture to its original or even better condition. On-site or in-shop services offered to all: Manufactures, Stores, Vendors, Warehouses, Designers, Hotels, Restaurants, Construction, Moving, Insurance Companies as well as Individual Customers. We have been at the forefront of the Antique and Modern Repair & Restoration.
"Dmytro is a pro!! He worked very hard to get my recliner back in shape!! Great job Dmytro! Thanks again."
Nancy b on September 2025

Greg Home Improvement, Inc.
Greg Home Improvement, Inc.
Greg Home Improvement Inc is a family owned and operated business . The president, Greg Estevez is the person in charge to estimate and supervise all the work, also one of the most complete of the very experienced working team. We been in business for 19 years performing all phases of construction in New York City, Nassau and Suffolk with a clean record in Consumer Affairs and Better Business Bureau with A+ rating. Greg home improvement Inc do not use subcontractors , only electricians and plumbers. We are licensed and insured.
"No job to small or to big for Greg, they do a good job!"
JOHN O on June 2023
Greg Home Improvement Inc is a family owned and operated business . The president, Greg Estevez is the person in charge to estimate and supervise all the work, also one of the most complete of the very experienced working team. We been in business for 19 years performing all phases of construction in New York City, Nassau and Suffolk with a clean record in Consumer Affairs and Better Business Bureau with A+ rating. Greg home improvement Inc do not use subcontractors , only electricians and plumbers. We are licensed and insured.
"No job to small or to big for Greg, they do a good job!"
JOHN O on June 2023

Enterprise Global Group
Enterprise Global Group
With over 20 years experience in the construction industry, Gomez Multi-Service is your industry expert in Suffolk county. We pride ourselves on our extreme professionalism, quality of work, 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 locally 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!
"Gabriel was a real professional. I appreciated his work ethic and his prompt and reasonable quote. He said job would take 2 days and finished it on time. The photos do not show the grime that had accumulated on my fences over 2 years. These are "after" photos . My husband and I are very pleased with his work and are expecting another quote from him for another project!"
Vivianne K on May 2025
With over 20 years experience in the construction industry, Gomez Multi-Service is your industry expert in Suffolk county. We pride ourselves on our extreme professionalism, quality of work, 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 locally 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!
"Gabriel was a real professional. I appreciated his work ethic and his prompt and reasonable quote. He said job would take 2 days and finished it on time. The photos do not show the grime that had accumulated on my fences over 2 years. These are "after" photos . My husband and I are very pleased with his work and are expecting another quote from him for another project!"
Vivianne K on May 2025

Precision Fence Co
Precision Fence Co
Precision Fence Co is your trusted partner for all your fencing needs in the New York City (Tri-State Area). With our expertise and attention to detail, we deliver top-notch fencing solutions that enhance the security and beauty of your property. Contact us today for a seamless and professional fencing experience.
"I dealt with Mike from precision fence and he was great. The team was quick and neat. Looked like they were never here. The fence is thick and comparing it to other products I was completely satisfied. I would highly recommend Mike from precision and his guys Wilton and George."
Will D on September 2023
Precision Fence Co is your trusted partner for all your fencing needs in the New York City (Tri-State Area). With our expertise and attention to detail, we deliver top-notch fencing solutions that enhance the security and beauty of your property. Contact us today for a seamless and professional fencing experience.
"I dealt with Mike from precision fence and he was great. The team was quick and neat. Looked like they were never here. The fence is thick and comparing it to other products I was completely satisfied. I would highly recommend Mike from precision and his guys Wilton and George."
Will D on September 2023

Wiskup Projects
Wiskup Projects
Wiskup Projects works at the convergence of architecture, development, and design. Our full-service approach encompasses traditional architectural design, discovering and creating development opportunities, and, on a limited basis, consulting with development partners. Current work includes full-scale townhouse renovations across Manhattan and Brooklyn; multifamily residences in Miami; upstate New York hospitality projects; select commercial offices; and a number of condo and co-op residences. We favor a holistic and inclusive process that marries founder Evan Wiskup’s rich intellectual background with a wealth of experience working successfully across complex permitting, funding, and construction challenges and opportunities.
"Working with Evan from Wiskup was a pleasure. He patiently and with great detail, explained the steps to complete the process of our job. I highly recommend working with this business for your architectural needs. "
Jennifer D on April 2025
Wiskup Projects works at the convergence of architecture, development, and design. Our full-service approach encompasses traditional architectural design, discovering and creating development opportunities, and, on a limited basis, consulting with development partners. Current work includes full-scale townhouse renovations across Manhattan and Brooklyn; multifamily residences in Miami; upstate New York hospitality projects; select commercial offices; and a number of condo and co-op residences. We favor a holistic and inclusive process that marries founder Evan Wiskup’s rich intellectual background with a wealth of experience working successfully across complex permitting, funding, and construction challenges and opportunities.
"Working with Evan from Wiskup was a pleasure. He patiently and with great detail, explained the steps to complete the process of our job. I highly recommend working with this business for your architectural needs. "
Jennifer D on April 2025

Tiderunner Engineering & Design PC
Tiderunner Engineering & Design PC
I provide residential structural engineering services to both homeowners and home improvement contractors. These services include plan preparation, design of structural members, structural evaluations of existing buildings, review of plans prepared by others, design of sanitary systems and on site drainage systems if necessary. All work is done by me, a registered professional engineer in New York, and I also conduct inspections and evaluations.
"Was Awful. Measurment's were off. Plans were incomplete. After he measured the rooms, we had to remeasure the rooms ourselves and send them to him. I then had to go to his house to pick up the plans. I submitted the plans at which time I was told that I needed to get then done again by a professional. Held up the construction by several weeks. Save your money. Do not use Lou."
Patrick V on April 2025
I provide residential structural engineering services to both homeowners and home improvement contractors. These services include plan preparation, design of structural members, structural evaluations of existing buildings, review of plans prepared by others, design of sanitary systems and on site drainage systems if necessary. All work is done by me, a registered professional engineer in New York, and I also conduct inspections and evaluations.
"Was Awful. Measurment's were off. Plans were incomplete. After he measured the rooms, we had to remeasure the rooms ourselves and send them to him. I then had to go to his house to pick up the plans. I submitted the plans at which time I was told that I needed to get then done again by a professional. Held up the construction by several weeks. Save your money. Do not use Lou."
Patrick V on April 2025

Lone Star Enterprises
Lone Star Enterprises
At Lone Star Enterprises we pride our company on attention to detail, punctuality, reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. Our attention to detail is that of no other. We look forward to earning your business!
"Ever did a great job and I would like to hire him again to do things I cannot do myself. "
Edith M on July 2025
At Lone Star Enterprises we pride our company on attention to detail, punctuality, reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. Our attention to detail is that of no other. We look forward to earning your business!
"Ever did a great job and I would like to hire him again to do things I cannot do myself. "
Edith M on July 2025
The Sag Harbor, NY homeowners’ guide to treehouse building services
From average costs to expert advice, get all the answers you need to get your job done.

Want to add value and living space to your home? Use this guide to figure out the cost to convert your garage into living space to see if it’s worth it.
•Wondering how much hiring an architect cost? Discover architect prices, cost factors, and money-saving tips to help you plan your home project with confidence.

Need to know how much blueprints cost for your new construction project? Use this comprehensive cost guide to get an accurate estimate for your build.
•Discover the cost of converting a duplex to a single-family home. Learn average prices, key factors, and tips to plan your conversion project with confidence.

Designers and architects both play a role in home construction projects. Learn the differences between designers and architects so you know who to hire.

A standard three-car garage square footage can vary depending on your vehicles and your intentions. Keep reading to learn more about three-car garage sizing.
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- 🌱 "Mow a small front yard"
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