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Guest house builders in Middlesex

Avatar for TRI-STATE BUILDING SPECIALTIES, INC.
TRI-STATE BUILDING SPECIALTIES, INC.
845 Towbin Ave
4.27(
11
)
Approved Pro
TRI-STATE BUILDING SPECIALTIES, INC.
845 Towbin Ave
4.27(
11
)
Approved Pro
Customers say: True professional
254 local quotes requested
34 years of experience

Expand your living space with our expert sunroom and patio enclosure remodeling services! We specialize in designing and transforming outdoor areas into beautiful, functional sunrooms and enclosed patios that you can enjoy year-round. Our skilled team delivers high-quality craftsmanship, using durable materials and personalized designs to enhance your home’s comfort and value. Whether you’re looking to create a cozy sunroom or a versatile patio enclosure, we’re committed to making your vision a reality. Contact us today for a free consultation and start planning your dream space!

"First meeting went very smoothly so far had a great experience with Jason Now will be working with Don the project manager."

Dee A on February 2025

Expand your living space with our expert sunroom and patio enclosure remodeling services! We specialize in designing and transforming outdoor areas into beautiful, functional sunrooms and enclosed patios that you can enjoy year-round. Our skilled team delivers high-quality craftsmanship, using durable materials and personalized designs to enhance your home’s comfort and value. Whether you’re looking to create a cozy sunroom or a versatile patio enclosure, we’re committed to making your vision a reality. Contact us today for a free consultation and start planning your dream space!

"First meeting went very smoothly so far had a great experience with Jason Now will be working with Don the project manager."

Dee A on February 2025


Mountain Landscape Contractors
PO Box 438
5.00(
7
)
Approved Pro
Mountain Landscape Contractors
PO Box 438
5.00(
7
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1760 local quotes requested

Since 1989 Mountain Landscape Contractors, Inc. has been servicing northern New Jersey with all encompassing commercial and residential landscape services. Mountain Landscape Contractors, Inc. offers a full complement of landscape services providing everything you need to improve and maintain your property with one professional relationship.

"We've been using Mountain Landscape Contractors for the past 6+ years and they have totally transformed our property. It went from a neglected and overgrown mess to a beautiful usable space for our family to grow and play in. We use them for basic maintenance and property upkeep but we've also used them for drainage, fencing, retaining wall work, water management, hardscaping, landscaping and so much more. We'd highly recommend them to anyone looking to take their property to the next level."

Ari H on October 2024

Since 1989 Mountain Landscape Contractors, Inc. has been servicing northern New Jersey with all encompassing commercial and residential landscape services. Mountain Landscape Contractors, Inc. offers a full complement of landscape services providing everything you need to improve and maintain your property with one professional relationship.

"We've been using Mountain Landscape Contractors for the past 6+ years and they have totally transformed our property. It went from a neglected and overgrown mess to a beautiful usable space for our family to grow and play in. We use them for basic maintenance and property upkeep but we've also used them for drainage, fencing, retaining wall work, water management, hardscaping, landscaping and so much more. We'd highly recommend them to anyone looking to take their property to the next level."

Ari H on October 2024


Avatar for Indigo Construction Co.
Indigo Construction Co.
4.92(
13
)
Approved Pro
Indigo Construction Co.
4.92(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

We offer full service design and construction needs. Which encompasses the clients design through collaboration, experience, and quality work. Our service ranges from interior renovations, additions, kitchens, basements, and bathrooms to trim work, custom cabinetry, tables, bar tops, doors and windows. Our owner and operator, Ryan has over twenty -years experience in the construction industry. His background in architecture, design, construction, and project management sets him apart from other competitors. He'll tell his clients, "it all starts with a sketch, from there anything is possible". For your next project, go with Indigo!

"The exterior door installation went well and was completed on time. Ryan’s helper called out and did not come the day the job was scheduled but Ryan was still able to complete the job as scheduled, alone. We decided to use Indigo because Ryan was more knowledgeable about door installation and the types of doors available that we could purchase. His estimate included plans to carefully remove our relatively new storm door so he could re-install it after the new exterior door was finished. Ryan was very communicative and helpful to us to get the job done right. We will likely use Indigo’s services again when we have another project. Muriel and Ray"

Ray B on June 2025

We offer full service design and construction needs. Which encompasses the clients design through collaboration, experience, and quality work. Our service ranges from interior renovations, additions, kitchens, basements, and bathrooms to trim work, custom cabinetry, tables, bar tops, doors and windows. Our owner and operator, Ryan has over twenty -years experience in the construction industry. His background in architecture, design, construction, and project management sets him apart from other competitors. He'll tell his clients, "it all starts with a sketch, from there anything is possible". For your next project, go with Indigo!

"The exterior door installation went well and was completed on time. Ryan’s helper called out and did not come the day the job was scheduled but Ryan was still able to complete the job as scheduled, alone. We decided to use Indigo because Ryan was more knowledgeable about door installation and the types of doors available that we could purchase. His estimate included plans to carefully remove our relatively new storm door so he could re-install it after the new exterior door was finished. Ryan was very communicative and helpful to us to get the job done right. We will likely use Indigo’s services again when we have another project. Muriel and Ray"

Ray B on June 2025


Avatar for Classical Pavers
Classical Pavers
1667 Kenneth Ave
5.00(
47
)
Approved Pro
Classical Pavers
1667 Kenneth Ave
5.00(
47
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
838 local quotes requested

Classical Pavers serves both New Jersey and New York in the Tri-state area. We are masonry contractor company that specializes in the installation of outdoor living areas including paver driveways, walkways, patios, steps, stoops, retaining walls, culture stone, and fire pits. We are fully insured.

"Classical Pavers did a beautiful job replacing my front walkway! It was not a straightforward project because it was built on a steep slope with a curve. The owner Thiago, who oversees the project, was a pleasure to work with -- never used any pressure tactics, was very responsive to any questions, and gave a fair price. The two craftsmen who did the work were amazing! They arrived promptly every day, worked extremely hard, and did absolutely beautiful work. They hauled away all the old materials and tidied everything up when the job was done. We definitely would hire them again for a future project and highly recommend them."

Jessica S on November 2023

Classical Pavers serves both New Jersey and New York in the Tri-state area. We are masonry contractor company that specializes in the installation of outdoor living areas including paver driveways, walkways, patios, steps, stoops, retaining walls, culture stone, and fire pits. We are fully insured.

"Classical Pavers did a beautiful job replacing my front walkway! It was not a straightforward project because it was built on a steep slope with a curve. The owner Thiago, who oversees the project, was a pleasure to work with -- never used any pressure tactics, was very responsive to any questions, and gave a fair price. The two craftsmen who did the work were amazing! They arrived promptly every day, worked extremely hard, and did absolutely beautiful work. They hauled away all the old materials and tidied everything up when the job was done. We definitely would hire them again for a future project and highly recommend them."

Jessica S on November 2023


Avatar for All Jersey Landscape LLC
All Jersey Landscape LLC
220 Monroe Ave
4.85(
13
)
Approved Pro
All Jersey Landscape LLC
220 Monroe Ave
4.85(
13
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
242 local quotes requested

Landscape and Stone Pavers professionals, Decorative Rock installations, Mulch installations, Flagstone pavers installation, Blue Stone pavers installations, and natural stone steps/stairs installations. We specialize in patios and walkways. We are licensed and insured with 15+ years experience and look forward to satisfying all of your project needs. Our goal is always to offer clients great quality work at an affordable price with transparency when completing a project.

"Fast quote, job completed in timely manner"

Carlos L on September 2024

Landscape and Stone Pavers professionals, Decorative Rock installations, Mulch installations, Flagstone pavers installation, Blue Stone pavers installations, and natural stone steps/stairs installations. We specialize in patios and walkways. We are licensed and insured with 15+ years experience and look forward to satisfying all of your project needs. Our goal is always to offer clients great quality work at an affordable price with transparency when completing a project.

"Fast quote, job completed in timely manner"

Carlos L on September 2024


Avatar for star22home
star22home
22 Plainfield Ave
4.64(
74
)
Approved Pro
star22home
22 Plainfield Ave
4.64(
74
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
529 local quotes requested

Our mission is to service our customers in a prompt and professional manner. We do not consider a home improvement or remodeling project complete until the work is finished, the job site is clean, and the customer is completely satisfied. Licensed & Insured since 1997

"This is an overdue review. I hired Bernie and his team for a kitchen remodel in June 2021, after he did an excellent job with my three bathrooms in 2020. The kitchen remodel was also excellent. His works are efficient, hardworking and clean. My remodel took two weeks, as he had quoted and for the exact price he had quoted. I would hire him and his team again and I referred them to a coworker for her bathroom project. She was also very pleased with their work."

Maria C on January 2025

Our mission is to service our customers in a prompt and professional manner. We do not consider a home improvement or remodeling project complete until the work is finished, the job site is clean, and the customer is completely satisfied. Licensed & Insured since 1997

"This is an overdue review. I hired Bernie and his team for a kitchen remodel in June 2021, after he did an excellent job with my three bathrooms in 2020. The kitchen remodel was also excellent. His works are efficient, hardworking and clean. My remodel took two weeks, as he had quoted and for the exact price he had quoted. I would hire him and his team again and I referred them to a coworker for her bathroom project. She was also very pleased with their work."

Maria C on January 2025


Avatar for Nicopal Construction
Nicopal Construction
181 Town Center Dr
4.86(
66
)
Approved Pro
Nicopal Construction
181 Town Center Dr
4.86(
66
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
501 local quotes requested

Nicopal Construction is a locally owned and operated business serving the North New Jersey area. We offer a wide range of home improvement services and have over 25 years of experience. We combine quality materials with expert installation to complete your project to 100 percent satisfaction. On our initial visit we can offer design ideas and give exact costs. If you feel it’s a good fit you move forward. We are Not a high pressured company. We understand comfort levels . Financing available.

"Would highly recommend Vincent and his team. They showed up on time and cleaned every day after leaving. I did a tub to shower conversation and it looks great. I like that Vincent had suggestions that I wouldn’t have thought of. They were so good I’m having them do my second bathroom!"

Patricia W on June 2025

Nicopal Construction is a locally owned and operated business serving the North New Jersey area. We offer a wide range of home improvement services and have over 25 years of experience. We combine quality materials with expert installation to complete your project to 100 percent satisfaction. On our initial visit we can offer design ideas and give exact costs. If you feel it’s a good fit you move forward. We are Not a high pressured company. We understand comfort levels . Financing available.

"Would highly recommend Vincent and his team. They showed up on time and cleaned every day after leaving. I did a tub to shower conversation and it looks great. I like that Vincent had suggestions that I wouldn’t have thought of. They were so good I’m having them do my second bathroom!"

Patricia W on June 2025


Avatar for Fiorino Custom Homes
Fiorino Custom Homes
Servicing All Areas
5.00(
28
)
Approved Pro
Fiorino Custom Homes
Servicing All Areas
5.00(
28
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
874 local quotes requested

Licensed and insured. 30 years experience. Owner working on the job everyday. Have help if needed.

"AWESOME!!!!!!!"

Rose W on May 2025

Licensed and insured. 30 years experience. Owner working on the job everyday. Have help if needed.

"AWESOME!!!!!!!"

Rose W on May 2025


Avatar for L & B Construction
L & B Construction
247 Wall St
4.84(
88
)
Approved Pro
L & B Construction
247 Wall St
4.84(
88
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
463 local quotes requested

L & B Construction is a family owned business with over 15 years of experience. Our main focus is on bathroom and kitchen remodeling, drywall repair, painting, carpentry, tile install and repair, and handyman services. We pride ourselves on giving an providing ours customers with the highest quality work. Also, passing savings from our affiliates that we purchase materials from.

"Excellent experience and beautiful work. The team was kind a respectful, and they had a great eye for detail. Thank you!"

Jerry S on May 2025

L & B Construction is a family owned business with over 15 years of experience. Our main focus is on bathroom and kitchen remodeling, drywall repair, painting, carpentry, tile install and repair, and handyman services. We pride ourselves on giving an providing ours customers with the highest quality work. Also, passing savings from our affiliates that we purchase materials from.

"Excellent experience and beautiful work. The team was kind a respectful, and they had a great eye for detail. Thank you!"

Jerry S on May 2025


Avatar for Exquisite Home Improvement LLC
Exquisite Home Improvement LLC
5.00(
8
)
Approved Pro
Exquisite Home Improvement LLC
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3179 local quotes requested

Exquisite Home Improvement LLC specialized in Bathroom and Kitchens remodeling, Deck building, Basement Finishing, Tile Installation.

"Excellent. Professional, patient, and problem solver! Called him back a few times already for other projects and will continue to do so."

Michael S on February 2025

Exquisite Home Improvement LLC specialized in Bathroom and Kitchens remodeling, Deck building, Basement Finishing, Tile Installation.

"Excellent. Professional, patient, and problem solver! Called him back a few times already for other projects and will continue to do so."

Michael S on February 2025

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FAQs for guest house building service projects in Middlesex, NJ

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 Middlesex, NJ homeowners’ guide to guest house building services
From average costs to expert advice, get all the answers you need to get your job done.
BRIGHT OPEN ATTIC SPACE
Jun 10, 2025
Jun 10, 2025
An in-law suite is a great solution for people who have family visiting often. Explore how much an in-law suite costs and prep to build yours.
white and gray kitchen with butchers block countertop
Apr 8, 2025
Apr 8, 2025
Looking to enhance the warmth and utility of your kitchen? Explore how much a butcher block countertop costs and start your budget here.
built-in outdoor kitchen with grill and sink
Apr 30, 2025
Apr 30, 2025
Budget for outdoor kitchen costs based on factors such as appliances, materials, permits, labor, amenities, kitchen size, customizations, and more.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
small bathroom that has been updated in a remodel
Apr 29, 2025
Apr 29, 2025
Budget for the cost to remodel a small bathroom based on factors such as required fixtures, bathroom size, labor, remodel type, site prep, and more.
guest house in the backyard
Apr 27, 2025
Apr 27, 2025
Need to build a guest house? Here’s how much it costs, what factors affect cost, and what to expect.
Share project details to get started.