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Guest house builders in Greenport

Avatar for Hampton Contracting
Hampton Contracting
128 Underwood Drive
5.00(
5
)
Approved Pro
Hampton Contracting
128 Underwood Drive
5.00(
5
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
111 local quotes requested

We are a quality contracting company serving the Hamptons for over 20 years! From small scale projects such as deck construction, siding, and window installation to complete home renovations. You name it we'll get it done.

"Excellent - very professional & neat ! A pleasure to work with ."

Viviane P on January 2025

We are a quality contracting company serving the Hamptons for over 20 years! From small scale projects such as deck construction, siding, and window installation to complete home renovations. You name it we'll get it done.

"Excellent - very professional & neat ! A pleasure to work with ."

Viviane P on January 2025


Avatar for Charles Construction Renovation
Charles Construction Renovation
20 Ocean Avenue
5.00(
3
)
Approved Pro
Charles Construction Renovation
20 Ocean Avenue
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
161 local quotes requested

We have the experience and dedication to get the job done right! Specializing in remodeling services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"Steps fix nicely"

Kachalia H on August 2024

We have the experience and dedication to get the job done right! Specializing in remodeling services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"Steps fix nicely"

Kachalia H on August 2024


Sunview Enterprise Inc
New on HomeAdvisorNew on Angi
Approved Pro
Sunview Enterprise Inc
New on AngiNew on HomeAdvisor
Approved Pro
243 local quotes requested

Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!


Avatar for Top To Bottom Home Solutions NY
Top To Bottom Home Solutions NY
768 South Broadway
5.00(
5
)
Approved Pro
Top To Bottom Home Solutions NY
768 South Broadway
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3576 local quotes requested

If you're looking for a company that provides premium products, outstanding service, and beautiful outcomes, then look no further than Top To Bottom Home Solutions NY. We are an all in one handyman and interior remodeling company! We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Lenny picked up where a previously fired contractor had started finishing our basement. He was organized, communicative, and thorough. His guys were clean, the work was performed above expectations considering the mess he walked into. I would 100% use him again."

Andrew H on January 2025

If you're looking for a company that provides premium products, outstanding service, and beautiful outcomes, then look no further than Top To Bottom Home Solutions NY. We are an all in one handyman and interior remodeling company! We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Lenny picked up where a previously fired contractor had started finishing our basement. He was organized, communicative, and thorough. His guys were clean, the work was performed above expectations considering the mess he walked into. I would 100% use him again."

Andrew H on January 2025


Avatar for UNILOCK
UNILOCK
51 International Blvd
5.00(
1
)
Approved Pro
UNILOCK
51 International Blvd
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
699 local quotes requested

Unilock is the leading North American manufacturer of concrete paving stones and segmental wall units. Our versatile palette of colors, textures and European-inspired styles help to create your own custom outdoor living space. For over 50 years, Unilock has remained a family-owned company that puts quality first. For us, it’s not just a matter of dollars and cents, it’s our personal reputation that’s on the line. Our customers – Homeowners, Contractors, Landscape Designers and Architects, across North America – can rely on us to supply them with quality product every time. That is why Unilock provides a transferable lifetime guarantee on the structural integrity of our paving stones, slabs and retaining wall units. That is also why we developed the Unilock Authorized Contractor program, designed to help homeowners connect with professional contractors who can be trusted to do the job right. All Unilock Authorized Contractors offer a minimum two-year guarantee on their workmanship.

Unilock is the leading North American manufacturer of concrete paving stones and segmental wall units. Our versatile palette of colors, textures and European-inspired styles help to create your own custom outdoor living space. For over 50 years, Unilock has remained a family-owned company that puts quality first. For us, it’s not just a matter of dollars and cents, it’s our personal reputation that’s on the line. Our customers – Homeowners, Contractors, Landscape Designers and Architects, across North America – can rely on us to supply them with quality product every time. That is why Unilock provides a transferable lifetime guarantee on the structural integrity of our paving stones, slabs and retaining wall units. That is also why we developed the Unilock Authorized Contractor program, designed to help homeowners connect with professional contractors who can be trusted to do the job right. All Unilock Authorized Contractors offer a minimum two-year guarantee on their workmanship.


Avatar for JA LAND DEVELOPMENT
JA LAND DEVELOPMENT
328 Main St
5.00(
24
)
Approved Pro
JA LAND DEVELOPMENT
328 Main St
5.00(
24
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
352 local quotes requested

J.A. Land development is a full service landscape construction and design company. We specialize in all aspects of landscape and site work from start to finish. Specializing in : -Plantings -grading -design -excavation -driveways -cobblestone -bluestone -stone veneer -cultured stone -patios -custom BBQ's -drainage -land clearing -retaining walls

"Retaining wall came out better than I expected. Very nice work"

Rob T on April 2025

J.A. Land development is a full service landscape construction and design company. We specialize in all aspects of landscape and site work from start to finish. Specializing in : -Plantings -grading -design -excavation -driveways -cobblestone -bluestone -stone veneer -cultured stone -patios -custom BBQ's -drainage -land clearing -retaining walls

"Retaining wall came out better than I expected. Very nice work"

Rob T on April 2025


Master Remodelers
Covering Suffolk County
5.00(
3
)
Approved Pro
Master Remodelers
Covering Suffolk County
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
543 local quotes requested

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"This company was excellent, Joe even helped me find with removal and replacement of my solar panels. I would highly recommend them. Also left my house clear of all debris."

Jeannette B on March 2025

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"This company was excellent, Joe even helped me find with removal and replacement of my solar panels. I would highly recommend them. Also left my house clear of all debris."

Jeannette B on March 2025


Avatar for Unlimited Outdoor Designs
Unlimited Outdoor Designs
435 Brook Ave Unit 21
4.24(
21
)
Approved Pro
Unlimited Outdoor Designs
435 Brook Ave Unit 21
4.24(
21
)
Approved Pro
Customers say: Terrific value
2277 local quotes requested
12 years of experience

Unlimited Outdoor Designs, specializing in Indoor Kitchens and Baths and Basement remodels. Fencing, Decks, Railings, Concrete, and Masonry work. We are family-owned and take pride in treating our clients like family. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing.

"Very professional A+ company from installation to clean up"

Nancy K on March 2024

Unlimited Outdoor Designs, specializing in Indoor Kitchens and Baths and Basement remodels. Fencing, Decks, Railings, Concrete, and Masonry work. We are family-owned and take pride in treating our clients like family. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing.

"Very professional A+ company from installation to clean up"

Nancy K on March 2024


Avatar for Allied Construction Corp
Allied Construction Corp
26 Pagnotta Dr
4.47(
160
)
Approved Pro
Allied Construction Corp
26 Pagnotta Dr
4.47(
160
)
Approved Pro
Customers say: True professional
996 local quotes requested
36 years of experience

**We are now specializing in Kitchen Remodeling**At this time we are unable to take on Bathroom Remodeling projects**Our first priority has always been the satisfaction of our customers, and we take great pride in both the quality of our work and the quality of the customer service we extend to each and every one of our clients, regardless of the size of their project. When trusting Allied Construction Corporation with your home remodeling project, you are trusting a crew of dedicated and talented home remodeling experts to take you through every single step of the process, and to keep you up to date on developments. We always treat your project – and your home – with the utmost level of care and respect. We strive to ensure that every last detail of your work order is performed with the same level of quality we would apply to our own home. Our work over the years has proven to yield exceptionally high return on investment, making your home not only the haven you envisioned but also more valuable. What is more, we provide extremely affordable home remodeling services, making it possible for you to see your vision come to life without breaking the bank. We also offer Angie's List members a 10% Discount on all Labor. We have been on the Discovery Channel. (References upon request). Additional Phone: 516-500-8170 Additional email: alliedgcinc@aol.com.

"This was an extensive project which was handled very well by Allied. Tom, the owner, is accommodating and helpful. Christian and Omar were fantastic! hey showed up early each morning as expected, worked hard throughout the day, and always cleaned up after themselves. There was a lot of problem-solving to be done throughout (by no fault of their's) and we got help suggestions and solutions throughout. The prices were reasonable and the quality of the work was great. I would highly recommend Allied."

Deb D on July 2021

**We are now specializing in Kitchen Remodeling**At this time we are unable to take on Bathroom Remodeling projects**Our first priority has always been the satisfaction of our customers, and we take great pride in both the quality of our work and the quality of the customer service we extend to each and every one of our clients, regardless of the size of their project. When trusting Allied Construction Corporation with your home remodeling project, you are trusting a crew of dedicated and talented home remodeling experts to take you through every single step of the process, and to keep you up to date on developments. We always treat your project – and your home – with the utmost level of care and respect. We strive to ensure that every last detail of your work order is performed with the same level of quality we would apply to our own home. Our work over the years has proven to yield exceptionally high return on investment, making your home not only the haven you envisioned but also more valuable. What is more, we provide extremely affordable home remodeling services, making it possible for you to see your vision come to life without breaking the bank. We also offer Angie's List members a 10% Discount on all Labor. We have been on the Discovery Channel. (References upon request). Additional Phone: 516-500-8170 Additional email: alliedgcinc@aol.com.

"This was an extensive project which was handled very well by Allied. Tom, the owner, is accommodating and helpful. Christian and Omar were fantastic! hey showed up early each morning as expected, worked hard throughout the day, and always cleaned up after themselves. There was a lot of problem-solving to be done throughout (by no fault of their's) and we got help suggestions and solutions throughout. The prices were reasonable and the quality of the work was great. I would highly recommend Allied."

Deb D on July 2021


Avatar for Island Homecraft
Island Homecraft
362 Silva St
5.00(
30
)
Approved Pro
Island Homecraft
362 Silva St
5.00(
30
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
172 local quotes requested

*ISLAND HOMECRAFT- Award winning, true kitchen and bath professionals! *"Dan and his crew were amazing" *"On time with every phase of my project. Never missed an appointment" *"I must be dreaming... They handled everything so professionally, no excuses, highest quality workmanship"- FREE KITCHEN DESIGN AND OF COURSE FREE ESTIMATES...

"As an Electrician for 30 years, I am not used to having contractors perform work on my home. However, I was doing a major renovation including the complete remodel of my kitchen, dining room, living room, and new stairs/hallway that was more than I would be handle. Dan was the first contractor I met with and I knew right away he was the guy. At our first meeting, he brought his Kitchen designer from Gallo-Rossi (Dominick) and went over everything in detail. Come project time, Dan and his crew were punctual and showed up as scheduled. Dan’s Crew are true craftsmen and all of his subs/trades are licensed professionals. Their quality workmanship was evident in both the things you can see, as well as the things you can’t. I have already recommended Dan to family and friends and they are just as happy as I am."

S C on August 2024

*ISLAND HOMECRAFT- Award winning, true kitchen and bath professionals! *"Dan and his crew were amazing" *"On time with every phase of my project. Never missed an appointment" *"I must be dreaming... They handled everything so professionally, no excuses, highest quality workmanship"- FREE KITCHEN DESIGN AND OF COURSE FREE ESTIMATES...

"As an Electrician for 30 years, I am not used to having contractors perform work on my home. However, I was doing a major renovation including the complete remodel of my kitchen, dining room, living room, and new stairs/hallway that was more than I would be handle. Dan was the first contractor I met with and I knew right away he was the guy. At our first meeting, he brought his Kitchen designer from Gallo-Rossi (Dominick) and went over everything in detail. Come project time, Dan and his crew were punctual and showed up as scheduled. Dan’s Crew are true craftsmen and all of his subs/trades are licensed professionals. Their quality workmanship was evident in both the things you can see, as well as the things you can’t. I have already recommended Dan to family and friends and they are just as happy as I am."

S C on August 2024

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Guest house building services FAQs

In most states, yes—you can build a guest house, but every city or county sets its own zoning rules and building codes. Before breaking ground, check local ordinances, confirm lot setbacks, and secure the right permits. A local contractor or design-build firm can walk you through the paperwork and site requirements so your project starts on solid legal footing.

Yes—homeowners often tap a few different financing tools. A home-equity line of credit (HELOC) lets you borrow against your equity as you need funds. If you prefer a lump sum tied directly to the project, a short-term construction loan can roll into a second mortgage once the build is complete. Cash-out refinancing is another option: you replace your current mortgage with a larger one and use the difference to cover construction costs.

When you build a guest house, you’re creating a separate structure for hosting visitors without the full amenities needed for permanent living. An accessory dwelling unit, however, includes a complete kitchen and bathroom, meeting building codes for a long-term residence. This key difference makes an ADU ideal for long-term occupancy or rental income, adding enduring value to your property.

How many rooms you need depends on how you plan to use the space. Aim for one bedroom per every one or two occupants to make sure everyone has enough privacy and comfort. Added living and dining areas give you extra functionality, especially for rental use or long-term stays.

Most homeowners pick somewhere between 600 and 1,500 square feet to fit all the essentials. Make sure your design supports one to two occupants per bedroom and includes enough common areas for comfortable daily living. A well-proportioned layout boosts both functionality and property value.

No—a guest house isn’t just a bump-out on your main home. A bump-out is a small extension within an existing room for extra seating or storage. In contrast, you build a guest house as a standalone building with its own foundation and amenities, giving you a fully separate living area that can boost your property’s versatility and value.

The homeowners guide to guest house building services
From average costs to expert advice, get all the answers you need to get your job done.
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