Top-rated shelter or outbuilding builders.

Get matched with top shelter or outbuilding builders in Lake Forest, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Shelter or outbuilding builders in Lake Forest

Avatar for Oshri Construction
Oshri Construction
5.0(
5
)

Serving Lake Forest, CA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

**Call us today for a FREE ESTIMATE!** With over 30 years of experience, you're going to fall in love with our craftsmanship and design of your project. We specialize in New Construction, Gazebo Building, Custom Home Building, Home Renovation, Construction & Remodeling.

Deck
Kitchen Remodel
Bathroom Remodel
Upscale Bathroom
Guest Bathroom

+99

Response time9 hrs
6 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.4(
23
)

Serving Lake Forest, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"Throughout our project, their general construction services were consistently professional and reliable. They managed every detail flawlessly, ensuring a smooth and efficient process from start to finish."
.
.
.
.
.

+1

Response time6 hrs
Recommended by28%of homeowners
RSF Construction Inc.
1.0(
1
)

Serving Lake Forest, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Avatar for L.A. Expert Builders
L.A. Expert Builders
5.0(
46
)

Serving Lake Forest, CA and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"I contacted several recommended contractors on my kitchen remodel and decided to go with the best quality-price ratio provided by LA Expert Builders. Nir and his team started this project on time and it was a true pleasure to work with them. Nir was very knowledgeable, communicative, honest and helpful. He and his team finished this remodeling project in a timely manner and final outcome s great. I really like my new kitchen! Thank you Nir and LA Expert Builders!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Recommended by100%of homeowners
Avatar for Progressive Builders
Progressive Builders
5.0(
77
)

Serving Lake Forest, CA and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Me and my husband had the best experience working with Progressive Builders. We had Ben in charge of our project and he always was so quick to respond to any question or concern we had. He is so creative and have great ideas. We are so happy with our new master bathroom, and will be doing more work with them. So happy thank you for being an honest and trustworthy company!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+57

Recommended by100%of homeowners
Avatar for Progressive Home Remodeling
Progressive Home Remodeling
5.0(
37
)

Serving Lake Forest, CA and surrounding areas

Free estimates

"I was delighted with the professionalism and quality of the dream innovations group's work for our remodeling project within our budget. You will find the desired result with dream innovations, just as I did. They remodeled and redesigned my home from start to finish. No shortcomings or mistakes. They did a solid job, and I am grateful for it. It took about five months of consistent and continuous work, but sooner than I expected, they completed the job with time to spare. The results are fantastic and welcome. My family and friends love the new look and will hire it for their next job."
Roofing Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+78

Recommended by100%of homeowners
IY Development & Renovation
4.9(
143
)

Serving Lake Forest, CA and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"IY Development and Renovation exceeded all my expectations with our kitchen remodel. Ilan Yosef and his team not only brought my vision to life but also added their expertise to create an even more stunning result. The work was precise, clean, and on schedule. Ilan made sure to address any questions or concerns I had along the way, and his transparency was refreshing. I m absolutely in love with my new kitchen, and I ll definitely be using IY Development for future projects!"
Recommended by50%of homeowners
Avatar for Top Leader Construction INC
Top Leader Construction INC
4.8(
26
)

Serving Lake Forest, CA and surrounding areas

Free estimates

"I would highly recommend Top Leader Construction to friends and family. I hired them a few months ago to redo the stucco on my home and a few other exterior enhancements. I am extremely pleased with the product and service they have provided. They resolved all my issues and concerns I may have had with the project. Thank you!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+305

Recommended by100%of homeowners
Avatar for OM Construction Inc
OM Construction Inc
4.7(
151
)

Serving Lake Forest, CA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"My 23 years old tile roof need to be replaced due to poor quality material used by previous local roofer. After search through 6 estimates, I pick Tony's bid because he listen to my concern and his prices seems fair. Normally roofing job starts in April or May, after the raining season, but our roof was leaking in several spots and Tony and Tino (the roofer) started the project in February. With the wettest raining season in recent memory in LA, it was a challenge to work on roof during the break between rain storms, but Tony and Tino's crew pull through the challenge. During the process, Tino also points out several issues with our chimney and he was able to do a thural repair and painting while he was up on the roof. As with any construction project, we encounter areas that need extra work and Tony was very easy to talk to and we were able to reach a reasonable price for the extra work. The only complaint I have about the whole project is that during the project, the crew allow the dirt got into my gutter and the cleaning process was not as thural as I'll like. Overall, I am very pleased with our roof project with OM Construction. Tony is very responsive during the process and address my concern very quickly. Tino's experience and attention to detail make me feel confident about the quality of our roof job."
Roofing Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+86

Recommended by95%of homeowners
...
Showing 1-10 of 120
FAQs for shelter or outbuilding building service projects in Lake Forest, CA

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 Lake Forest, CA homeowners’ guide to shelter or outbuilding building services

From average costs to expert advice, get all the answers you need to get your job done.

  • newly built swimming pool enclosure

    The cost to build a pool enclosure depends on the type of cover you choose and the size of your pool. Learn how to budget for this project.

  • Open door to storm cellar

    HomeAdvisor’s Bomb Shelter and Bunker Cost Guide covers all the costs of a prefabricated doomsday bunker. Find costs and find professional bunker builders near you.

  • light blue shed in a backyard

    Building a shed or playhouse comes with costs for materials, labor, and design choices. Compare DIY vs. professional installation to find the best option for your budget.