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Find Shelter or outbuilding builders in Cambridge

Avatar for Loyd's Home Improvement

Loyd's Home Improvement

Carl Landi Circle
4.52(
27
)
•Approved Pro

Loyd's Home Improvement

Carl Landi Circle
4.52(
27
)
•Approved Pro
Customers say: Quality work
254 local quotes requested
17 years of experience

Loyd's Home Improvement is ready to provide everything and anything your home needs to look and feel new again at affordable prices. With over 25 years of experience, Loyd's Home Improvement has designed and build several Handicapped decks and ramps. Call today for details! Additional DBA - Harold Loyd.

"Harold & his crew, Charlie & Mike were awesome. Came to work on time. They listened to my wants & needs and came up with a plan that worked. Communicated with us through out the process. Their attention to detail was incredible. They went above & beyond their job description. I would highly recommend them on any renovations, they are very talented skilled laborers. It was a pleasure doing business with this company."

John R on December 2024

Loyd's Home Improvement is ready to provide everything and anything your home needs to look and feel new again at affordable prices. With over 25 years of experience, Loyd's Home Improvement has designed and build several Handicapped decks and ramps. Call today for details! Additional DBA - Harold Loyd.

"Harold & his crew, Charlie & Mike were awesome. Came to work on time. They listened to my wants & needs and came up with a plan that worked. Communicated with us through out the process. Their attention to detail was incredible. They went above & beyond their job description. I would highly recommend them on any renovations, they are very talented skilled laborers. It was a pleasure doing business with this company."

John R on December 2024

Avatar for DiOrio Builders & Designers Inc

DiOrio Builders & Designers Inc

55 South St.
4.58(
124
)
•Approved Pro

DiOrio Builders & Designers Inc

55 South St.
4.58(
124
)
•Approved Pro
Customers say: Quality work
187 local quotes requested
59 years of experience

DiOrio Builders and Designers Inc. is a fully licensed and insured company committed to providing homeowners with the highest level of craftsmanship. Built on old fashioned values we are experienced specialists that will complete your project to exact specifications in a timely manner. Quality work is our priority while paying special attention to detail. No job is too big or too small.

"Diorio has been working on my house since the day I bought it back in 2018. They have repainted my interior, rebuilt my front and back porch, redone all my windows, and finished my attic and basement. The price is right and the quality is always done to the a high professional standard. I keep them coming back to my home year after year to make more improvements. If you want something done right, go with Diorio."

ALEXANDER A on October 2025

DiOrio Builders and Designers Inc. is a fully licensed and insured company committed to providing homeowners with the highest level of craftsmanship. Built on old fashioned values we are experienced specialists that will complete your project to exact specifications in a timely manner. Quality work is our priority while paying special attention to detail. No job is too big or too small.

"Diorio has been working on my house since the day I bought it back in 2018. They have repainted my interior, rebuilt my front and back porch, redone all my windows, and finished my attic and basement. The price is right and the quality is always done to the a high professional standard. I keep them coming back to my home year after year to make more improvements. If you want something done right, go with Diorio."

ALEXANDER A on October 2025

Avatar for D & S Partners Construction

D & S Partners Construction

156 Salisbury Street
5.00(
38
)
•Approved Pro

D & S Partners Construction

156 Salisbury Street
5.00(
38
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
525 local quotes requested

DS Partners Constructlon prides itself in delivering good quality work, excellent workmanship, timely delivery and attention to detail. Our goal is to ensure that we can deliver the vision you have for your project and that our company will remain your choice as the remodel company for future projects.

"I highly recommend Sanfer Rocha and D.S. Partners Construction for a bathroom remodel. Sanfer was professional, transparent with costs, and responsive to questions during the whole renovation process. His workers were skilled, prompt, and friendly. Sanfer also suggested vendors and provided helpful tips. I am very happy with our beautiful bathroom and would hire him again for another renovation."

Karen D on August 2025

DS Partners Constructlon prides itself in delivering good quality work, excellent workmanship, timely delivery and attention to detail. Our goal is to ensure that we can deliver the vision you have for your project and that our company will remain your choice as the remodel company for future projects.

"I highly recommend Sanfer Rocha and D.S. Partners Construction for a bathroom remodel. Sanfer was professional, transparent with costs, and responsive to questions during the whole renovation process. His workers were skilled, prompt, and friendly. Sanfer also suggested vendors and provided helpful tips. I am very happy with our beautiful bathroom and would hire him again for another renovation."

Karen D on August 2025

Avatar for Royal Contracting

Royal Contracting

70 Country Club Rd
4.65(
158
)
•Approved Pro

Royal Contracting

70 Country Club Rd
4.65(
158
)
•Approved Pro
Customers say: Quality work
269 local quotes requested
26 years of experience

Royal Contracting was established in 1999 and has experienced steady growth ever since. Its owner, Dermot McElligott has over 20 years experience in the construction field. Our mission is to provide top quality craftsmanship while maintaining superior customer care. We pride ourselves on long term relationships with our customers by ensuring each job is met with 100% customer satisfaction. We are a general contracting service specializing in kitchen and bath remodeling, as well as running a carpentry and handyman service and interior and exterior painting. We do it all! No job is too large or too small! Additional DBA - Dermot McElligott. Award winning.

"Project was completed in a timely fashion at the agreed upon price."

Alex M on February 2025

Royal Contracting was established in 1999 and has experienced steady growth ever since. Its owner, Dermot McElligott has over 20 years experience in the construction field. Our mission is to provide top quality craftsmanship while maintaining superior customer care. We pride ourselves on long term relationships with our customers by ensuring each job is met with 100% customer satisfaction. We are a general contracting service specializing in kitchen and bath remodeling, as well as running a carpentry and handyman service and interior and exterior painting. We do it all! No job is too large or too small! Additional DBA - Dermot McElligott. Award winning.

"Project was completed in a timely fashion at the agreed upon price."

Alex M on February 2025

Avatar for WR Builders, Inc

WR Builders, Inc

397 Elliot
5.00(
90
)
•Approved Pro

WR Builders, Inc

397 Elliot
5.00(
90
)
•Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
445 local quotes requested

WR Builders, Inc. is a full-service design-build firm located in Newton, Massachusetts. We are fully licensed. Our services include new home construction, home renovations, additions, kitchen remodeling, bath remodeling, interior design, and gut renovations for homes, condominiums, and investment property. We focus on capturing the unique style and personality of every client. Whether your style is traditional, transitional or contemporary, we deliver the highest quality design-build services in New England

"I hired them to renovate my home. They did a great job"

Hector I on September 2025

WR Builders, Inc. is a full-service design-build firm located in Newton, Massachusetts. We are fully licensed. Our services include new home construction, home renovations, additions, kitchen remodeling, bath remodeling, interior design, and gut renovations for homes, condominiums, and investment property. We focus on capturing the unique style and personality of every client. Whether your style is traditional, transitional or contemporary, we deliver the highest quality design-build services in New England

"I hired them to renovate my home. They did a great job"

Hector I on September 2025

Avatar for American Precision Developers, LLC

American Precision Developers, LLC

50 Follen Street
5.00(
7
)
•Approved Pro

American Precision Developers, LLC

50 Follen Street
5.00(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
98 local quotes requested

American Precision was founded by Estenio Lima and Sara Yoffe. Estenio is a licensed construction supervisor and skilled master carpenter who has built, renovated, and restored some of the most beautiful homes in Massachusetts. Sara, the daughter of a contractor, is a lawyer by training and holds both a construction supervisor and real estate broker license. She began her career in real estate and construction in 2018, first by focusing on her family’s portfolio of properties. Sara manages over 150 homes and apartments in Cambridge, Charlestown, and Quincy. Estenio and Sara began collaborating in 2018, developing properties for APD's sister company, Cambridge Prime, and started American Precision in 2021. American Precision specializes in renovation and restoration of existing properties to fit the needs of both homeowners and developers.

"We had the pleasure to work with American Precision Developers over the last 2-3 years. They worked on three separate large projects: (1) a main-level kitchen, dining and living room remodel, (2) basement refinish and mudroom rebuilt (3) bathroom, primary bedroom and family room remodel. Both Sara and Estenio listened carefully to our needs and preferences and offered suggestions based on their experience and desire to provide a high-quality finished product. The craftsmanship and attention to details in the finished spaces are truly impressive. On the main level they transformed a boxy layout into a modern, open-concept kitchen, dining and living room. The bathroom, primary bedroom and family room are now beautiful functional spaces tailored to our needs. APD did a great job on waterproofing and finishing the basement and mud room that are now inviting and well-designed spaces. ADP has an amazing team. We highly recommend them !"

Monia D on February 2025

American Precision was founded by Estenio Lima and Sara Yoffe. Estenio is a licensed construction supervisor and skilled master carpenter who has built, renovated, and restored some of the most beautiful homes in Massachusetts. Sara, the daughter of a contractor, is a lawyer by training and holds both a construction supervisor and real estate broker license. She began her career in real estate and construction in 2018, first by focusing on her family’s portfolio of properties. Sara manages over 150 homes and apartments in Cambridge, Charlestown, and Quincy. Estenio and Sara began collaborating in 2018, developing properties for APD's sister company, Cambridge Prime, and started American Precision in 2021. American Precision specializes in renovation and restoration of existing properties to fit the needs of both homeowners and developers.

"We had the pleasure to work with American Precision Developers over the last 2-3 years. They worked on three separate large projects: (1) a main-level kitchen, dining and living room remodel, (2) basement refinish and mudroom rebuilt (3) bathroom, primary bedroom and family room remodel. Both Sara and Estenio listened carefully to our needs and preferences and offered suggestions based on their experience and desire to provide a high-quality finished product. The craftsmanship and attention to details in the finished spaces are truly impressive. On the main level they transformed a boxy layout into a modern, open-concept kitchen, dining and living room. The bathroom, primary bedroom and family room are now beautiful functional spaces tailored to our needs. APD did a great job on waterproofing and finishing the basement and mud room that are now inviting and well-designed spaces. ADP has an amazing team. We highly recommend them !"

Monia D on February 2025

Duncan Builders

5.00(
8
)
•Approved Pro

Duncan Builders

5.00(
8
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
443 local quotes requested

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! Check out our services offered and call or click to schedule an estimate today!

"Todd and the Duncan Builders team were GREAT to work with on this remodel. I would 100% recommend them for your home construction needs."

Michael T on May 2023

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! Check out our services offered and call or click to schedule an estimate today!

"Todd and the Duncan Builders team were GREAT to work with on this remodel. I would 100% recommend them for your home construction needs."

Michael T on May 2023

Avatar for Coen Construction

Coen Construction

387 Page Street
4.08(
13
)
•Approved Pro

Coen Construction

387 Page Street
4.08(
13
)
•Approved Pro
Customers say: Terrific value
1430 local quotes requested
14 years of experience

We are a full service residential construction and remodeling company. Our goal is to exceed all of our clients expectations through exceptional customer service and quality craftsmanship. We work with some of the best tradesmen in the industry to deliver a quality finished product. From deck and porch builds to siding and windows, we can do it all. Contact us for an estimate on your project today! Check out our instagram for photos and updates @coenconstruction

"The work was completed — but if you missed something minor yet important, don’t count on getting it done afterward. Once they’ve been paid, they’ll completely ignore you, even if you’re willing to pay."

Alex K on September 2025

We are a full service residential construction and remodeling company. Our goal is to exceed all of our clients expectations through exceptional customer service and quality craftsmanship. We work with some of the best tradesmen in the industry to deliver a quality finished product. From deck and porch builds to siding and windows, we can do it all. Contact us for an estimate on your project today! Check out our instagram for photos and updates @coenconstruction

"The work was completed — but if you missed something minor yet important, don’t count on getting it done afterward. Once they’ve been paid, they’ll completely ignore you, even if you’re willing to pay."

Alex K on September 2025

Avatar for EENN Construction and Cleaning, Inc.

EENN Construction and Cleaning, Inc.

5.00(
2
)
•Approved Pro

EENN Construction and Cleaning, Inc.

5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
526 local quotes requested

20+ years of experience! Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Evandson and his team are true professionals. They converted an unused space in our primary bedroom into an en-suite primary bathroom. The timeline proposed was 6-7 weeks and they completed everything including permitting and inspections within 5 weeks. The craftsmanship was top notch and we were extremely impressed with how clean and on time they were throughout the project. Evandson and his team had previously helped us finish our basement, which we love, and it was a no brainer to have him complete our bathroom project. We would recommend Evandson and EENN to anyone looking to complete any home improvement project, as our experiences working with them have been nothing but positive. We would give more than 5 stars if given the option!"

Steven Kouri k on August 2025

20+ years of experience! Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Evandson and his team are true professionals. They converted an unused space in our primary bedroom into an en-suite primary bathroom. The timeline proposed was 6-7 weeks and they completed everything including permitting and inspections within 5 weeks. The craftsmanship was top notch and we were extremely impressed with how clean and on time they were throughout the project. Evandson and his team had previously helped us finish our basement, which we love, and it was a no brainer to have him complete our bathroom project. We would recommend Evandson and EENN to anyone looking to complete any home improvement project, as our experiences working with them have been nothing but positive. We would give more than 5 stars if given the option!"

Steven Kouri k on August 2025

Socel Company

425 WASHINGTON ST
5.00(
20
)
•Approved Pro

Socel Company

425 WASHINGTON ST
5.00(
20
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
310 local quotes requested

Socel company, Family owned & operated. Free Estimates. Exterior and Interior Painting, Kitchen/Bath Remodeling, Decks/Porches, Roofing, Hardwood Floor, All phases of Carpentry and Snow Removal Services. Please +1 (508 215 7698 contact us by phone or e-mail (socel2020company@gmail.com).

"Celio and his team did an amazing and thorough job for our small project. They were easy to work with and provided very fair and competitive pricing. You can tell Celio has been doing this a long time and his experience and knowledge really shone through. We’re very happy with the results and we would definitely hire them again!"

Ian Miller M on September 2025

Socel company, Family owned & operated. Free Estimates. Exterior and Interior Painting, Kitchen/Bath Remodeling, Decks/Porches, Roofing, Hardwood Floor, All phases of Carpentry and Snow Removal Services. Please +1 (508 215 7698 contact us by phone or e-mail (socel2020company@gmail.com).

"Celio and his team did an amazing and thorough job for our small project. They were easy to work with and provided very fair and competitive pricing. You can tell Celio has been doing this a long time and his experience and knowledge really shone through. We’re very happy with the results and we would definitely hire them again!"

Ian Miller M on September 2025

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FAQs for shelter or outbuilding building service projects in Cambridge, MA

A bomb shelter is an abode built to withstand disaster. Bomb shelters may refer to a space or bunker that can protect inhabitants through a hypothetical nuclear attack, apocalypse, or any other massive crisis. People usually build bomb shelters underground and stock them to live there a few days to a month at a time. Doomsday bunkers accommodate long-term living rather than just through a short crisis.

Builders construct bomb shelters with reinforced steel, box culvert, concrete, or other durable materials (but many professionals do not recommend shipping containers, as they’re not designed to live underground. If building underground, you’ll first have to excavate land before building the actual structure. You’ll have to implement air and water filtration systems, septic systems, and power supply.

It takes a lot of experience to safely and legally construct a bomb shelter, not to mention make sure it’s fit to live in for extended periods of time. It’s best to talk to a residential structural engineer near you for proper guidance.

The current standard filtration systems require filtering both air and water. For air, you’ll want an NBC filter system, which both domestic and international producers make. NBC stands for Nuclear, Biological, and Chemical, which filters out all three. If you’re only building your shelter for natural disasters, chemical attacks, and biological attacks, you may opt for the less expensive HEPA filter system. 

Water filtration requires the same level of care. You’ll likely want to have a large water storage capacity to survive short-term disasters. For long-term living, you’ll want to have a water filtration system.

Rising S bunker prices depend on the size, ranging anywhere from $20,000 to $9 million. Their least expensive model is 96 square feet while their most expensive model has a gym, swimming pool, hot tub, and bowling alley.

  • Mini: $45,500

  • Standard Bomb Shelter: $67,500–$109,500

  • Silver Leaf: $140,000–$182,500

  • Admiral: $180,000–$500,000

  • Xtreme: $450,000–$780,000

  • Xtreme Bunker Complex: $840,000–$1,830,000

  • Luxury Series: $3,800,000–$9,600,000

You almost always need a permit to build a bunker on land with any type of public utilities running through it. You’ll want to check with your local building code enforcement agency to see if this is the case for your area. 

Because you’re building a structural component that often requires electricity, water, and sewage services, you’ll need to apply for permits to attach these utilities to your new property. However, off-grid-only units in rural areas may not need all or any of the permitting you’d normally find in more urban settings.

To survive a nuclear blast, you’ll need to have your bunker at least three feet underground. However, it’s usually advisable to put it further underground. To survive a close strike, you’ll want to have the bunker at least 10 feet down and with five-foot thick reinforced concrete. However, knowing exactly how deep to build depends on the size of the blast you’re trying to avoid. Most bunkers don’t need to be more than 5 feet below the ground. 

The Cambridge, MA homeowners’ guide to shelter or outbuilding building services

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