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Earthquake retrofitting specialists in Grass Valley
Ridgeway Construction Inc is a family owned and operated General B licensed construction company serving the Greater Sacramento area. We specialize in decks, siding, dry rot repairs and remodels but as a General B Licensed Contractor - CSLB Lic. 1083145 - we do everything from fencing, painting, and concrete to French drains and everything in-between whether it's big or small. We do most of the work ourselves and, whether it's our own crew on the job or one of our personally vetted subcontractors, our GC Mike physically oversees all work to ensure consistency of excellence and even puts on his own bags. If you happen to have a project outside of our wheelhouse, or if we feel like we are not a good fit, we will always point you in the right direction. Give us a call today, we look forward to earning your business!
"Excellent he took care of all of my concerns and was able to tackle a project that other handymen would not even return my calls for. Thanks"
Kevin S on September 2021
Ridgeway Construction Inc is a family owned and operated General B licensed construction company serving the Greater Sacramento area. We specialize in decks, siding, dry rot repairs and remodels but as a General B Licensed Contractor - CSLB Lic. 1083145 - we do everything from fencing, painting, and concrete to French drains and everything in-between whether it's big or small. We do most of the work ourselves and, whether it's our own crew on the job or one of our personally vetted subcontractors, our GC Mike physically oversees all work to ensure consistency of excellence and even puts on his own bags. If you happen to have a project outside of our wheelhouse, or if we feel like we are not a good fit, we will always point you in the right direction. Give us a call today, we look forward to earning your business!
"Excellent he took care of all of my concerns and was able to tackle a project that other handymen would not even return my calls for. Thanks"
Kevin S on September 2021
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
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
Lukins & Associates is a crisis management consulting firm (emergency response, security, environmental response). We are active throughout the United States and in numerous countries. L&A is the SOLE authorized ACE Security Laminates dealer in California!
Lukins & Associates is a crisis management consulting firm (emergency response, security, environmental response). We are active throughout the United States and in numerous countries. L&A is the SOLE authorized ACE Security Laminates dealer in California!
Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!
"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."
Tony T on March 2019
Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!
"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."
Tony T on March 2019
A&E has been in business for more than 40 years serving Northern California and all parts of the country. A&E provides both architectural and engineering services. A&E is one of only a handful of people in the state that is both architect and structural engineer. Well experienced in residential, commercial, industrial, educational and agricultural buildings.
A&E has been in business for more than 40 years serving Northern California and all parts of the country. A&E provides both architectural and engineering services. A&E is one of only a handful of people in the state that is both architect and structural engineer. Well experienced in residential, commercial, industrial, educational and agricultural buildings.
All remodels custom homes and much more
All remodels custom homes and much more
SOLE OWNERSHIP. NO SUBS. TRAVEL CHARGE $60.00 PER HOUR PLUS MILEAGE. Full service structural consulting engineering company with over 20 years of experience.
SOLE OWNERSHIP. NO SUBS. TRAVEL CHARGE $60.00 PER HOUR PLUS MILEAGE. Full service structural consulting engineering company with over 20 years of experience.
General Building and Engineering Contractor Licensed by the Calif. State Contractors License board, A and B 689708. Gore Development has a large sub-contractor base, is a member of the Nevada County Contractors Association. EPA LEAD SAFE CERTIFIED FIRM NAT-51968-1 Specializing in ADA Title 24 Handicapped accesibility and associated remodeling to provide access. Design and Build services including design, engineering and construction. Building permit processing and Owner Builder consulting services.
General Building and Engineering Contractor Licensed by the Calif. State Contractors License board, A and B 689708. Gore Development has a large sub-contractor base, is a member of the Nevada County Contractors Association. EPA LEAD SAFE CERTIFIED FIRM NAT-51968-1 Specializing in ADA Title 24 Handicapped accesibility and associated remodeling to provide access. Design and Build services including design, engineering and construction. Building permit processing and Owner Builder consulting services.
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.
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