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Avatar for Matos Contracting, Inc.

Matos Contracting, Inc.

5.00(
17
)
Approved Pro

Matos Contracting, Inc.

5.00(
17
)
Approved Pro
Customers say: True professional
7 years of experience
Free onsite estimate

Check out our instagram @matos.contracting Contact us directly 7073569627, otherwise you will be charged Angis list fee if chosen to be your contractor. We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Alex did repair damages to our window trims. His work was thorough and of high quality. Alex was also very friendly and communicative while also being affordable. We'll hire him again next time we need repairs or projects done on our house."

Gregoire S on September 2025

Check out our instagram @matos.contracting Contact us directly 7073569627, otherwise you will be charged Angis list fee if chosen to be your contractor. We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Alex did repair damages to our window trims. His work was thorough and of high quality. Alex was also very friendly and communicative while also being affordable. We'll hire him again next time we need repairs or projects done on our house."

Gregoire S on September 2025


Avatar for RG Construction

RG Construction

5.00(
4
)
Approved Pro

RG Construction

5.00(
4
)
Approved Pro
Free onsite estimate
Emergency services offered

We have been in the construction industry for over 10 years. From building ADUs, high-end kitchen remodels, bathroom remodels and home extensions, we have done just about everything under general construction. Our company prioritizes safety, quality and transparency.

"Me and my wife decided recently to get our kitchen remolded. After some time searching for the right guys to do the job we settled on RG Construction. Richard, who is the owner, is a great guy and super informative. He never left any question unanswered or left us uncertain about anything. His crew works quick, and they pay attention to the tiniest detail. They absolutely are worth every dollar and I would recommend RG Construction to any homeowner, and I for sure will be giving them a call back for any work I need done in the future. Me and my wife are absolutely in love with our remodel."

Jesse O on November 2025

We have been in the construction industry for over 10 years. From building ADUs, high-end kitchen remodels, bathroom remodels and home extensions, we have done just about everything under general construction. Our company prioritizes safety, quality and transparency.

"Me and my wife decided recently to get our kitchen remolded. After some time searching for the right guys to do the job we settled on RG Construction. Richard, who is the owner, is a great guy and super informative. He never left any question unanswered or left us uncertain about anything. His crew works quick, and they pay attention to the tiniest detail. They absolutely are worth every dollar and I would recommend RG Construction to any homeowner, and I for sure will be giving them a call back for any work I need done in the future. Me and my wife are absolutely in love with our remodel."

Jesse O on November 2025


Avatar for IVANSCAPING CORP

IVANSCAPING CORP

5.00(
6
)
Approved Pro

IVANSCAPING CORP

5.00(
6
)
Approved Pro
Customers say: Quick response
13 years of experience
Free onsite estimate

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest. Call today!

"job done with care, speed, detailed focus, professionalism and courtesy. "

Marcy P on August 2025

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest. Call today!

"job done with care, speed, detailed focus, professionalism and courtesy. "

Marcy P on August 2025


Avatar for RNR Landscaping

RNR Landscaping

5.00(
1
)
Approved Pro

RNR Landscaping

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Welcome to RNR LANDSCAPING. We proudly provide the highest quality of service and craftsmanship for each aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you and making your vision a reality. Give us a call, text or email today, and let us get started!

"Rafa is amazing. He comes with a smile and great work ethic. His crew is hard working and diligent."

Marny D on June 2021

Welcome to RNR LANDSCAPING. We proudly provide the highest quality of service and craftsmanship for each aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you and making your vision a reality. Give us a call, text or email today, and let us get started!

"Rafa is amazing. He comes with a smile and great work ethic. His crew is hard working and diligent."

Marny D on June 2021


Avatar for C Arenas Masonry Contractor

C Arenas Masonry Contractor

4.83(
9
)
Approved Pro

C Arenas Masonry Contractor

4.83(
9
)
Approved Pro
Customers say: Quality work
22 local quotes requested
7 years of experience

We are a locally owned and operated company that values honesty, integrity and treats your home as if it were our own. We offer a variety of handyman services that are customized to each individual project. You will find us to be competitively priced, paying close attention to the details of each project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Camilo Arenas is an excellent craftsman and very courteous. His work ethic is wonderful always on time. We were delighted with the outcome and the price was fair"

Barbara W on October 2023

We are a locally owned and operated company that values honesty, integrity and treats your home as if it were our own. We offer a variety of handyman services that are customized to each individual project. You will find us to be competitively priced, paying close attention to the details of each project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"Camilo Arenas is an excellent craftsman and very courteous. His work ethic is wonderful always on time. We were delighted with the outcome and the price was fair"

Barbara W on October 2023


Avatar for The Treehouse Works-- Unlicensed Contractor

The Treehouse Works-- Unlicensed Contractor

4.92(
12
)
Approved Pro

The Treehouse Works-- Unlicensed Contractor

4.92(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 years of experience

The Treehouse Works is a locally owned and operated company that values honesty, integrity, and treats your home as if it were our own. Please consider us for your next project. We can offer a wide variety of small repair and maintenance projects or we can help you pack and unpack if you are moving. You will find us to be competitively priced, while still paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction. Labor $80 per hour, no travel fee within our service area, 2 hour minimum. Give us a call today to get your project started!

"I worked with Scott on a remodel for over two months. He was always punctual, a hard worker, a good eye for detail and efficient. He was exactly what I needed ànd communicated everything upfront. I am very happy with the results. He is my go to guy."

Janelle W on May 2020

The Treehouse Works is a locally owned and operated company that values honesty, integrity, and treats your home as if it were our own. Please consider us for your next project. We can offer a wide variety of small repair and maintenance projects or we can help you pack and unpack if you are moving. You will find us to be competitively priced, while still paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction. Labor $80 per hour, no travel fee within our service area, 2 hour minimum. Give us a call today to get your project started!

"I worked with Scott on a remodel for over two months. He was always punctual, a hard worker, a good eye for detail and efficient. He was exactly what I needed ànd communicated everything upfront. I am very happy with the results. He is my go to guy."

Janelle W on May 2020


Avatar for La Zucena Concrete & Landscaping

La Zucena Concrete & Landscaping

5.00(
1
)
Approved Pro

La Zucena Concrete & Landscaping

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 years of experience

La Zucena Concrete & Landscaping, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Crew arrived early every time, and the owner was there working and directing."

Dana M on August 2020

La Zucena Concrete & Landscaping, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Crew arrived early every time, and the owner was there working and directing."

Dana M on August 2020


Avatar for R Moreno's Landscaping, Inc.

R Moreno's Landscaping, Inc.

4.58(
6
)
Approved Pro

R Moreno's Landscaping, Inc.

4.58(
6
)
Approved Pro
Customers say: Quick response
6 years of experience
Free onsite estimate

With over 15 years of experience in the landscaping industry, we are the experts you need to take care of your home or business. We will treat your home as we would treat our own. Give R Moreno's Landscaping, Inc. a call today, we look forward to working with you.

"Daniel very hard worker and does excellent work he fixed my irrigation in front and back Very good person to work for you would hire him again Lynn N"

Lynn N on April 2023

With over 15 years of experience in the landscaping industry, we are the experts you need to take care of your home or business. We will treat your home as we would treat our own. Give R Moreno's Landscaping, Inc. a call today, we look forward to working with you.

"Daniel very hard worker and does excellent work he fixed my irrigation in front and back Very good person to work for you would hire him again Lynn N"

Lynn N on April 2023


Napa Lock & Safe

New on AngiNew on Angi
Approved Pro

Napa Lock & Safe

New on AngiNew on Angi
Approved Pro
17 years of experience
Free onsite estimate

We're a locally owned and operated company that values honesty, integrity and treats your home as if it were our own. We offer a variety of general Contractor home improvement services that are customizable to each individual project. 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 being of service.

We're a locally owned and operated company that values honesty, integrity and treats your home as if it were our own. We offer a variety of general Contractor home improvement services that are customizable to each individual project. 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 being of service.


Sampson's Landscaping, Inc.

5.00(
6
)
Approved Pro

Sampson's Landscaping, Inc.

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

Sampson's Landscaping, Inc., provides a variety of residential and commercial landscaping services for clients throughout Marin County, handling everything from water features, lighting and planting installations to masonry, woodwork and lawn maintenance. Aaron's personal involvement in every job sets Sampson's Landscaping, Inc., apart in its industry. Call us today for a free estimate!!!

"Aaron and his crew are great! Our project involved reshaping a hill and pasture into a pool with concrete decks, stone retaining walls, boulders, landscaping with drought resistant plantings, a drip irrigation system and lighting, Itâ s a complete transformation! They are responsive, adaptable, very efficient and great at problem solving, all at a fair price with detailed billing information. Iâ ll definitely use them for my next projects!!"

Teresa H on September 2023

Sampson's Landscaping, Inc., provides a variety of residential and commercial landscaping services for clients throughout Marin County, handling everything from water features, lighting and planting installations to masonry, woodwork and lawn maintenance. Aaron's personal involvement in every job sets Sampson's Landscaping, Inc., apart in its industry. Call us today for a free estimate!!!

"Aaron and his crew are great! Our project involved reshaping a hill and pasture into a pool with concrete decks, stone retaining walls, boulders, landscaping with drought resistant plantings, a drip irrigation system and lighting, Itâ s a complete transformation! They are responsive, adaptable, very efficient and great at problem solving, all at a fair price with detailed billing information. Iâ ll definitely use them for my next projects!!"

Teresa H on September 2023

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Retaining Wall Installers questions, answered by experts

Yes, to build a retaining wall, a permit is required. Similarly, any repairs or modifications to an existing retaining wall require permits. If the planned wall measures higher than 4 feet, most municipalities require designs and permits come through a licensed engineer. In some locations, if the wall is shorter than 4 feet, a permit may not be required. For the requirements in your area, contact your local government.

Vinyl retaining walls are often the least expensive type of retaining wall, at $10 to $15 per square foot. This budget-friendly material is lightweight and durable, but it doesn’t have many decorative options. Untreated timber and railroad ties are the next step up, and start at $15 to $25 per square foot, respectively. High-end steel or natural stone tend to be the least wallet-friendly, but they’re extremely durable and come with a high-end look.

The lifespan of a retaining wall varies based on its particular material, whether it was properly installed, how well it’s maintained, and your local climate. Concrete, stone, and brick retaining walls last the longest, with concrete lasting between 50 and 100 years on average. Brick tends to last the longest, with a minimum of one century, under the right conditions. 

Timber retaining walls can start to deteriorate at 20 years, depending on the wood quality, but in the best case, they can last 40 years. Pressure-treated wood retaining walls last 30 years on average.

Installation typically takes 1-2 weeks, depending on the wall’s size and site conditions.

Most railroad tie retaining walls have a life span of 20 to 30 years, though you may need to replace your wall sooner if it’s repeatedly exposed to heavy rain, runoff, and excess moisture. Railroad ties are typically treated with creosote, which makes them much more durable than untreated wood. Though they last longer, they don’t last forever. For the most longevity, make sure your retaining wall has a sturdy base and steel reinforcements. You should also install drainage to direct water away from the wall.

The Cotati, CA homeowners’ guide to retaining wall installation services

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