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Guest house builders in Plainville

Avatar for Dynamic Basements Plus
Dynamic Basements Plus
11 Chaplin St
4.98(
57
)
Approved Pro
Dynamic Basements Plus
11 Chaplin St
4.98(
57
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
113 local quotes requested

Whether its finishing your basement, adding on to your home, or giving your home a total makeover , we're here to help you every step of the way. Dynamic Basements Plus is an established company based in Connecticut, and has a great team of people who have been in the industry since 2002, so we really mean it when we say we're here to help you. Contact us by phone or email and schedule a free quote today!

"Chris did an excellent job from start to finish. He worked with us to personalize the basement to our vision and he kept us informed every step of the way. We have been loving our new finished space and getting lots of compliments from friends. Can not recommend him enough!"

Justin M on May 2025

Whether its finishing your basement, adding on to your home, or giving your home a total makeover , we're here to help you every step of the way. Dynamic Basements Plus is an established company based in Connecticut, and has a great team of people who have been in the industry since 2002, so we really mean it when we say we're here to help you. Contact us by phone or email and schedule a free quote today!

"Chris did an excellent job from start to finish. He worked with us to personalize the basement to our vision and he kept us informed every step of the way. We have been loving our new finished space and getting lots of compliments from friends. Can not recommend him enough!"

Justin M on May 2025


Avatar for Long Home Products
Long Home Products
16 International Dr
5.00(
1
)
Approved Pro
Long Home Products
16 International Dr
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3079 local quotes requested

With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Quick, one day service, cleaned up after, friendly they even double checked with us before installing safety handles and shelves to make sure they were exactly where we wanted them."

Shelley A on March 2025

With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Quick, one day service, cleaned up after, friendly they even double checked with us before installing safety handles and shelves to make sure they were exactly where we wanted them."

Shelley A on March 2025


Avatar for Dolphin Home Improvement LLC
Dolphin Home Improvement LLC
87 Barn Finch Circle
5.00(
15
)
Approved Pro
Dolphin Home Improvement LLC
87 Barn Finch Circle
5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1005 local quotes requested

Dolphin Home Improvement LLC is a family owned and operated company that has been serving Connecticut for over 20 years.We all know there are plenty of options when choosing a contractor whether you're in the market for Roofing,Siding or Windows but we feel that our service, products, workmanship and industry knowledge is a tough package to beat.Honesty and integrity always come first when you’re dealing with Dolphin Home Improvement LLC.You’ll get a contractor that has the experience and expertise to create superior quality . We stand behind the quality of our work and guarantee 100% customer satisfaction.

"Very professional and personable! They were very detail oriented and did the job in a very reasonable time. They made sure that everything was to how we wanted and explained everything. Would absolutely use them again with some other work in the future!"

Brandon T on March 2025

Dolphin Home Improvement LLC is a family owned and operated company that has been serving Connecticut for over 20 years.We all know there are plenty of options when choosing a contractor whether you're in the market for Roofing,Siding or Windows but we feel that our service, products, workmanship and industry knowledge is a tough package to beat.Honesty and integrity always come first when you’re dealing with Dolphin Home Improvement LLC.You’ll get a contractor that has the experience and expertise to create superior quality . We stand behind the quality of our work and guarantee 100% customer satisfaction.

"Very professional and personable! They were very detail oriented and did the job in a very reasonable time. They made sure that everything was to how we wanted and explained everything. Would absolutely use them again with some other work in the future!"

Brandon T on March 2025


Avatar for Elite Remodeling Services LLC
Elite Remodeling Services LLC
29 Deerfield Lane
5.00(
5
)
Approved Pro
Elite Remodeling Services LLC
29 Deerfield Lane
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1726 local quotes requested

10 years worth of construction experience in various industries.

"Mike and his crew were wonderful, knowledgable, professional and efficient. The quality of the work was outstanding and the whole process was smooth and easy! Can’t recommend them highly enough!"

Brianna P on November 2024

10 years worth of construction experience in various industries.

"Mike and his crew were wonderful, knowledgable, professional and efficient. The quality of the work was outstanding and the whole process was smooth and easy! Can’t recommend them highly enough!"

Brianna P on November 2024


Avatar for Better Built Basements LLC
Better Built Basements LLC
229 Christian Ln
4.38(
271
)
Approved Pro
Better Built Basements LLC
229 Christian Ln
4.38(
271
)
Approved Pro
Customers say: Quality work
154 local quotes requested
17 years of experience

Additional e-mail - info@better-built-basements.com. Award winning. The Mission of Better Built Basements, LLC is to have Connecticut homeowners select us as their remodeling contractor by providing innovative and affordable basement solutions. We strive to build trust and confidence with our customers with precise quotes, honest and consistent communication, professional appearance and demeanor, and accurate time lines for every project.

"Two years ago, I met with BBB Randy to add a bathroom on our second floor. Now, two years later, after having done such a good job on our bathroom, we have finished our basement with BBB, adding a bedroom, bathroom, bar, and theater. Our home was recently constructed by Toll Brothers. Making renovations to and matching the high quality to that of Toll brothers' can be challenging at times. We were so fortunate to work with BBB and their construction quality. They make sure their customer receives exactly what they ask for and more. We have worked with Randy throughout the entire process from start to finish. He is very professional and always available to address your needs. They have good contractors and maintain the delivery schedule. Throughout the construction process, I never had to worry about anything. We love our basement, and are always receiving compliments on it! We are very thankful towards the entire BBB construction team for working on our project."

VENKAT B on October 2019

Additional e-mail - info@better-built-basements.com. Award winning. The Mission of Better Built Basements, LLC is to have Connecticut homeowners select us as their remodeling contractor by providing innovative and affordable basement solutions. We strive to build trust and confidence with our customers with precise quotes, honest and consistent communication, professional appearance and demeanor, and accurate time lines for every project.

"Two years ago, I met with BBB Randy to add a bathroom on our second floor. Now, two years later, after having done such a good job on our bathroom, we have finished our basement with BBB, adding a bedroom, bathroom, bar, and theater. Our home was recently constructed by Toll Brothers. Making renovations to and matching the high quality to that of Toll brothers' can be challenging at times. We were so fortunate to work with BBB and their construction quality. They make sure their customer receives exactly what they ask for and more. We have worked with Randy throughout the entire process from start to finish. He is very professional and always available to address your needs. They have good contractors and maintain the delivery schedule. Throughout the construction process, I never had to worry about anything. We love our basement, and are always receiving compliments on it! We are very thankful towards the entire BBB construction team for working on our project."

VENKAT B on October 2019


Avatar for Outdoor Revivals LLC
Outdoor Revivals LLC
15 Bartholomew Ave, Ansonia CT 06401
5.00(
6
)
Approved Pro
Outdoor Revivals LLC
15 Bartholomew Ave, Ansonia CT 06401
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
441 local quotes requested

Outdoor Revivals is a family-owned masonry company specializing in hardscaping and a variety of outdoor services. We offer expert installation and repair for pavers, decks, veneers, retaining walls, concrete work, waterproofing, chimneys, outdoor lighting, pergolas, fencing, turf and sod .Whether you need to enhance your driveway, patio, or garden, our skilled team ensures high-quality craftsmanship and attention to detail.

"I recently had the pleasure of working with Outdoor Revival on our new 600ft Trex deck, and I couldn't be more thrilled with the results! From start to finish, their team was professional, knowledgeable, and incredibly skilled and hard-working. The quality is outstanding and they completed the deck quickly. The crew listened to our ideas and helped bring them to life in a way that exceeded my expectations. The Trex materials they used are beautiful and they went above and beyond to make our deck perfect. I highly recommend Outdoor Revivals and look forward to using them for our next project!"

Roisleen G on January 2025

Outdoor Revivals is a family-owned masonry company specializing in hardscaping and a variety of outdoor services. We offer expert installation and repair for pavers, decks, veneers, retaining walls, concrete work, waterproofing, chimneys, outdoor lighting, pergolas, fencing, turf and sod .Whether you need to enhance your driveway, patio, or garden, our skilled team ensures high-quality craftsmanship and attention to detail.

"I recently had the pleasure of working with Outdoor Revival on our new 600ft Trex deck, and I couldn't be more thrilled with the results! From start to finish, their team was professional, knowledgeable, and incredibly skilled and hard-working. The quality is outstanding and they completed the deck quickly. The crew listened to our ideas and helped bring them to life in a way that exceeded my expectations. The Trex materials they used are beautiful and they went above and beyond to make our deck perfect. I highly recommend Outdoor Revivals and look forward to using them for our next project!"

Roisleen G on January 2025


Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
33 Progress Avenue
4.47(
164
)
Approved Pro
Connecticut Basement Systems, Inc.
33 Progress Avenue
4.47(
164
)
Approved Pro
Customers say: Super punctual
471 local quotes requested
38 years of experience

Connecticut Basement Systems is your trusted expert for basement waterproofing, crawl space repair, basement finishing, and foundation repair. Using patented, warrantied products, we provide permanent solutions for your home. Have a wet, flooded basement or crawl space? Tilted or bowing foundation walls? A basement you want to finish? We have a solution. We proudly serve homeowners and businesses all throughout Connecticut & Westchester County, NY. Call us today for a free inspection and no-obligation, estimate. Financing available. Additional phones - (203) 881-5090. Award winning.

"My daughter is getting married this week and we have a house full of guests from out of town. It would not be a very good time to also have to deal with a flood. The technician just left. He was pleasant and clearly knew his business. He did a professional job of cleaning out the sludge, showing me the workings of the system and letting me know realistic expectations on the motor life. That said, I decided to err on the side of caution and replace the motor which he had with him. He finished up and cleaned up everything – then last we walked outside to be sure the ejection area was in order. I can rest assured that what was a panic situation just a short time ago is dealt with."

Kevin K on July 2018

Connecticut Basement Systems is your trusted expert for basement waterproofing, crawl space repair, basement finishing, and foundation repair. Using patented, warrantied products, we provide permanent solutions for your home. Have a wet, flooded basement or crawl space? Tilted or bowing foundation walls? A basement you want to finish? We have a solution. We proudly serve homeowners and businesses all throughout Connecticut & Westchester County, NY. Call us today for a free inspection and no-obligation, estimate. Financing available. Additional phones - (203) 881-5090. Award winning.

"My daughter is getting married this week and we have a house full of guests from out of town. It would not be a very good time to also have to deal with a flood. The technician just left. He was pleasant and clearly knew his business. He did a professional job of cleaning out the sludge, showing me the workings of the system and letting me know realistic expectations on the motor life. That said, I decided to err on the side of caution and replace the motor which he had with him. He finished up and cleaned up everything – then last we walked outside to be sure the ejection area was in order. I can rest assured that what was a panic situation just a short time ago is dealt with."

Kevin K on July 2018


Avatar for Connecticut Custom Creations
Connecticut Custom Creations
260 Hartford Avenue
4.82(
22
)
Approved Pro
Connecticut Custom Creations
260 Hartford Avenue
4.82(
22
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
979 local quotes requested

At Connecticut Custom Creations™, we specialize in transforming kitchens, bathrooms, basements, and attics into beautiful, functional spaces tailored to your needs. We take great pride in helping people build their dream homes, a core value that drives everything we do. As an owner-operated business with over a decade of experience, I bring seasoned expertise to every project, no matter the size. Whether it’s a small renovation or a large-scale remodel, we’re committed to delivering exceptional results with care and precision.

"I'm amazed of how my shower upgrade turned out. I still can't believe cts creation finished in one day. I recommend cts creation to anybody and everybody. They killed it!"

Zach t on August 2024

At Connecticut Custom Creations™, we specialize in transforming kitchens, bathrooms, basements, and attics into beautiful, functional spaces tailored to your needs. We take great pride in helping people build their dream homes, a core value that drives everything we do. As an owner-operated business with over a decade of experience, I bring seasoned expertise to every project, no matter the size. Whether it’s a small renovation or a large-scale remodel, we’re committed to delivering exceptional results with care and precision.

"I'm amazed of how my shower upgrade turned out. I still can't believe cts creation finished in one day. I recommend cts creation to anybody and everybody. They killed it!"

Zach t on August 2024


Avatar for Guri Masonry LLC
Guri Masonry LLC
5.00(
7
)
Approved Pro
Guri Masonry LLC
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
273 local quotes requested

Guri Masonry LLC is a family owned and operated American business with roots in Europe. We strive to meet the needs of every customer, and are dedicated to providing the highest quality service which exceeds expectations.

"Very pleased with the wall built and the customer service received... Guri was polite, considerate (tarp under truck, kept area clean), and a true craftsman... The stones were chiseled and time was taken to create a beautiful stacked stone wall. In today's world where it's so hard to find good people to trust with your projects/investments - I highly recommend Guri...."

Danielle F on June 2023

Guri Masonry LLC is a family owned and operated American business with roots in Europe. We strive to meet the needs of every customer, and are dedicated to providing the highest quality service which exceeds expectations.

"Very pleased with the wall built and the customer service received... Guri was polite, considerate (tarp under truck, kept area clean), and a true craftsman... The stones were chiseled and time was taken to create a beautiful stacked stone wall. In today's world where it's so hard to find good people to trust with your projects/investments - I highly recommend Guri...."

Danielle F on June 2023


Avatar for Imagine Remodel
Imagine Remodel
4 Alcap Ridge
5.00(
4
)
Approved Pro
Imagine Remodel
4 Alcap Ridge
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1094 local quotes requested

Home remodeling company specializing in Bathrooms and Kitchens.

"Had my bathroom redone and it came out beautiful. The whole process was seamless and the communication was excellent. Will use again for future projects!"

Robin L on July 2024

Home remodeling company specializing in Bathrooms and Kitchens.

"Had my bathroom redone and it came out beautiful. The whole process was seamless and the communication was excellent. Will use again for future projects!"

Robin L on July 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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