Top-rated earthquake retrofitting specialists.

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Earthquake retrofitting specialists in Greenwood

Avatar for JK Flanagan
JK Flanagan
15280 Neils Rd.
5.00(
6
)
Approved Pro
JK Flanagan
15280 Neils Rd.
5.00(
6
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

JK Flanagan is a build design/build general building contractor located in Placer Co. We have been building in Northern California since 2009. With over a decade of successfully performing residential, commercial and industrial projects we have the knowledge, skill and experience that's essential for your building success. With our focus on service and quality, we strive to be the best. Construction materials and methods are constantly advancing, we always use the best proven methods and materials. We know our work will speak for us long after we're gone. That's why client satisfaction and building quality is our top priority, we will outperform your expectations. New Construction: Design/Build, ground up and turnkey custom homes, additions, ADU's and buildings. Structural: Concrete, foundations, framing and retrofitting. Foundation repairs and leveling. Hardened structures: Fire, blast and ballistic rated structures. Gun and safe rooms. Underground and sub-level structures.

"Great guy to do the work dose great work very professional work"

Robert A on January 2024

JK Flanagan is a build design/build general building contractor located in Placer Co. We have been building in Northern California since 2009. With over a decade of successfully performing residential, commercial and industrial projects we have the knowledge, skill and experience that's essential for your building success. With our focus on service and quality, we strive to be the best. Construction materials and methods are constantly advancing, we always use the best proven methods and materials. We know our work will speak for us long after we're gone. That's why client satisfaction and building quality is our top priority, we will outperform your expectations. New Construction: Design/Build, ground up and turnkey custom homes, additions, ADU's and buildings. Structural: Concrete, foundations, framing and retrofitting. Foundation repairs and leveling. Hardened structures: Fire, blast and ballistic rated structures. Gun and safe rooms. Underground and sub-level structures.

"Great guy to do the work dose great work very professional work"

Robert A on January 2024


Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
23445 Haynes Street
4.25(
18
)
Approved Pro
McCormick Home Builders, Inc.
23445 Haynes Street
4.25(
18
)
Approved Pro
Customers say: True professional
233 local quotes requested
8 years of experience

MCCORMICK HOME BUILDERS INC We’re a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. 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!

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."

Geoffrey C H on January 2025

MCCORMICK HOME BUILDERS INC We’re a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. 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!

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."

Geoffrey C H on January 2025


JK Flanagan
15280 Neils Rd.
4.75(
4
)
JK Flanagan
15280 Neils Rd.
4.75(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

JK Flanagan is a build design/build general building contractor located in Placer County CA. We have been building in Northern California since 2009. With over a decade of successfully performing residential, commercial and industrial projects we have the knowledge, skill and experience that's essential for your building success. With our focus on service and quality, we strive to be the best. Construction materials and methods are constantly advancing, we always use the best proven methods and materials. We know our work will speak for us long after we're gone. That's why client satisfaction and building quality is our top priority, we will outperform your expectations. New Construction: Build, Design/Build, ground up and turnkey custom homes, additions, ADU's and buildings. Structural: Concrete, foundations, framing and retrofitting. Foundation repairs and leveling. Hardened structures: Fire, blast and ballistic rated structures. Gun and safe rooms. Underground and sub-level structures. B-General Building Contractor #: 938631 EXP: 10/31/2025

"James is a conscientious, observant, and reliable builder. I rely on and refer James regularly for his thoughtful and candid opinions, and input. I know my clients will receive the highest quality of service."

Joe L on April 2025

JK Flanagan is a build design/build general building contractor located in Placer County CA. We have been building in Northern California since 2009. With over a decade of successfully performing residential, commercial and industrial projects we have the knowledge, skill and experience that's essential for your building success. With our focus on service and quality, we strive to be the best. Construction materials and methods are constantly advancing, we always use the best proven methods and materials. We know our work will speak for us long after we're gone. That's why client satisfaction and building quality is our top priority, we will outperform your expectations. New Construction: Build, Design/Build, ground up and turnkey custom homes, additions, ADU's and buildings. Structural: Concrete, foundations, framing and retrofitting. Foundation repairs and leveling. Hardened structures: Fire, blast and ballistic rated structures. Gun and safe rooms. Underground and sub-level structures. B-General Building Contractor #: 938631 EXP: 10/31/2025

"James is a conscientious, observant, and reliable builder. I rely on and refer James regularly for his thoughtful and candid opinions, and input. I know my clients will receive the highest quality of service."

Joe L on April 2025


Thomas R. Allison Construction
1079 Sunrise Ave. B-139
No reviews
Thomas R. Allison Construction
1079 Sunrise Ave. B-139
No reviews
45 years of experience

We have extensive experience in residential and commercial construction, but there's no job too small. We are a general contractor and design-build firm with 30 years of experience and satisfied customers. We have extensive experience in residential and commercial construction and development, but we treat even the smallest of jobs with care and expertise.

We have extensive experience in residential and commercial construction, but there's no job too small. We are a general contractor and design-build firm with 30 years of experience and satisfied customers. We have extensive experience in residential and commercial construction and development, but we treat even the smallest of jobs with care and expertise.


Licensed General Contractor and Bonded


Lovingood Construction Inc.
9474 Oak Ave
No reviews
Lovingood Construction Inc.
9474 Oak Ave
No reviews
39 years of experience

We are a general contractor serving the greater Sacramento area specializing in commercial and residential remodel and custom cabinetry and millwork.

We are a general contractor serving the greater Sacramento area specializing in commercial and residential remodel and custom cabinetry and millwork.


KHR Construction
9541 Nieman Ave
No reviews
KHR Construction
9541 Nieman Ave
No reviews
25 years of experience

We are a father son small company with many years experience. We are also licensed, bonded, & insured. We have been in business for 13 years now and are extremely professional.

We are a father son small company with many years experience. We are also licensed, bonded, & insured. We have been in business for 13 years now and are extremely professional.


RDH Construction
6144 Gold Hill Rd
No reviews
RDH Construction
6144 Gold Hill Rd
No reviews
45 years of experience

Semi-Retired building contractor providing all types of home repair services, including new decks and patios.

Semi-Retired building contractor providing all types of home repair services, including new decks and patios.


Family Owned Business Since 1977. We have a showroom open to the public.


20% discount to Senior Citizens and Military family members.

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Earthquake retrofitting services FAQs

Most earthquake retrofitting jobs take one week to 10 business days to complete. However, your professional retrofitting expert will be able to give you a more accurate timeline for your home once you complete an initial consultation. The total time may be longer for projects requiring more extensive work or homes with structural damage due to a prior earthquake.

You can expect to pay between $3,370 and $8,610 in earthquake retrofit costs, ranging from $500 to $15,000 or more, depending on your type of home and foundation and retrofitting method. 

If you have a slab foundation, you can expect to pay on the lower end, between $500 and $3,000. If you have a wooden foundation, that cost jumps to $5,000 to $10,000. A hillside home, not as vulnerable to earthquake damage, typically costs between $5,000 to $10,000 to retrofit while a soft-story home ranges from $10,000 to $80,000.

It is not advisable to try to retrofit your home without the expertise of a professional. These projects usually require a consultation with a structural engineer and a plumber for any gas-related adjustments. Working with a professional earthquake retrofitting contractor is the best way to ensure that any structural work done to your home will help protect you and your family.

First, you can expect the project to be loud. If you have pets, you might want to take them to a friend's house during the day so they are not disturbed by any of the loud noises. In addition, you’ll need to provide the retrofit team access to areas of the house that will need to be worked on, meaning you’ll need to relocate personal items, clear clutter, and make pathways for the crew. Once the project is complete, a local building inspector will conduct a final inspection to ensure that the retrofitting is up to code.

Earthquake retrofitting can increase your home value, making it a great return on investment. This feature is especially valuable in areas prone to earthquakes. Besides the increased safety value (not only for your family but for the next family who moves in), earthquake retrofitting also helps lower homeowners insurance rates. In addition, having your home earthquake retrofitted can make it easier to get a home loan since they are considered lower risk.

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