Top 10 building addition services in Simi Valley, CA

Porch Pro Headshot Atlas Builders & Development
Building Addition
Serves Simi Valley, California
"Atlas Builders and Development elevated my backyard renovation project from satisfactory to superb. Upon nearing the completion of a pool installation with a different company, we began looking for contractors to turn our ground level patio into a deck. We were sure we wanted Trex decking, and Atl...Read more about Atlas Builders & Development
100% response rate
"Atlas Builders and Development elevated my backyard renovation project from satisfactory to superb. Upon nearing the completion of a pool installation with a different company, we began looking for contractors to turn our ground level patio into a deck. We were sure we wanted Trex decking, and Atl...Read more about Atlas Builders & Development
Porch Pro Headshot MARTINS CONSTRUCTION
Building Addition
Serves Simi Valley, California
(355)
"I purchased a craftsman home in Long Beach that was built in 1905 and Martin's Construction helped me with my remodeling project. I had to bring up an illegal addition to code, do all new plumbing, all new electrical ,new sewer, bathroom remodel, kitchen remodel, new floors, new roof , new fence , ...Read more about MARTINS CONSTRUCTION
"I purchased a craftsman home in Long Beach that was built in 1905 and Martin's Construction helped me with my remodeling project. I had to bring up an illegal addition to code, do all new plumbing, all new electrical ,new sewer, bathroom remodel, kitchen remodel, new floors, new roof , new fence , ...Read more about MARTINS CONSTRUCTION
Porch Pro Headshot House Next Door Remodeling
Building Addition
Serves Simi Valley, California
(358)
"The House Next Door is my only choice when I need a job completed around the house. Nothing is too big or too small. Jeff and his crew are always around to quickly provide a quote and get the job done right the first time. My wife and I are highly pleased with our renovated kitchen and would defini...Read more about House Next Door Remodeling
"The House Next Door is my only choice when I need a job completed around the house. Nothing is too big or too small. Jeff and his crew are always around to quickly provide a quote and get the job done right the first time. My wife and I are highly pleased with our renovated kitchen and would defini...Read more about House Next Door Remodeling
Porch Pro Headshot Design Everest
Building Addition
Serves Simi Valley, California
(189)
Design Everest is a leading technology-enabled Architecture and Engineering firm in California. Since 2005, we have successfully delivered 8000+ residential and commercial projects for end-customers and industry-partners, powering over $500M of construction annually through our innovative and remote...Read more about Design Everest
Design Everest is a leading technology-enabled Architecture and Engineering firm in California. Since 2005, we have successfully delivered 8000+ residential and commercial projects for end-customers and industry-partners, powering over $500M of construction annually through our innovative and remote...Read more about Design Everest
Porch Pro Headshot Remodeling Home Advisors
Building Addition
Serves Simi Valley, California
(132)
"Definitely a group of hard working people and very friendly! They take pride in their work and make sure that you as a customer are satisfied and taken care of! I highly recommend using "Remodeling Home Advisors" and I will definitely use them in the future!"
"Definitely a group of hard working people and very friendly! They take pride in their work and make sure that you as a customer are satisfied and taken care of! I highly recommend using "Remodeling Home Advisors" and I will definitely use them in the future!"
Porch Pro Headshot Sunshine Foundation Repairs
Building Addition
Serves Simi Valley, California
(102)
"I hired Sunshine builders to remodel our master bathroom and the second floor hallway. In the past, I did worked with several contractors (with several levels of success), but I really wanted my master bathroom in my new house to be nothing but perfect. At first, I thought that if I will hire a sep...Read more about Sunshine Foundation Repairs
"I hired Sunshine builders to remodel our master bathroom and the second floor hallway. In the past, I did worked with several contractors (with several levels of success), but I really wanted my master bathroom in my new house to be nothing but perfect. At first, I thought that if I will hire a sep...Read more about Sunshine Foundation Repairs
Porch Pro Headshot SES Builders, Inc.
Building Addition
Serves Simi Valley, California
(109)
"The garage needed to be repaired due to some missing drywalls, lighting, and floor. We decided to do that project because we start do the new floor around the whole house. The floor was ordered from a vendor that work with this company. Ilan was the person that made our life as easy as possible and...Read more about SES Builders, Inc.
"The garage needed to be repaired due to some missing drywalls, lighting, and floor. We decided to do that project because we start do the new floor around the whole house. The floor was ordered from a vendor that work with this company. Ilan was the person that made our life as easy as possible and...Read more about SES Builders, Inc.
Porch Pro Headshot Golden Touch Construction
Building Addition
Serves Simi Valley, California
(25)
"As designers, working across hospitality, high-end residential, and commercial fields, we have extremely high standards for workmanship and professionalism. Choosing Golden Touch Construction as your building partner will assure you a quality build accompanied by an honest perspective and a fai...Read more about Golden Touch Construction
"As designers, working across hospitality, high-end residential, and commercial fields, we have extremely high standards for workmanship and professionalism. Choosing Golden Touch Construction as your building partner will assure you a quality build accompanied by an honest perspective and a fai...Read more about Golden Touch Construction
Porch Pro Headshot Santa Barbara Construction and Design
Building Addition
Serves Simi Valley, California
(34)
"Juan & his crew replaced my metal mobile home skirting with vinyl skirting. I'm impressed with their professionalism, courteousness, hard work, and willingness to listen. I've utilized their services in the past & will again soon."
"Juan & his crew replaced my metal mobile home skirting with vinyl skirting. I'm impressed with their professionalism, courteousness, hard work, and willingness to listen. I've utilized their services in the past & will again soon."
Porch Pro Headshot Fidelity General contractors Inc.
Building Addition
Serves Simi Valley, California
(89)
Fidelity General Contractor is a full insured and licensed remodeling and Construction Company providing a full range of home design and construction services including kitchens, bathrooms, flooring, painting windows, roofing and plumbing work. Fidelity General Contractors is proud to service the Lo...Read more about Fidelity General contractors Inc.
Fidelity General Contractor is a full insured and licensed remodeling and Construction Company providing a full range of home design and construction services including kitchens, bathrooms, flooring, painting windows, roofing and plumbing work. Fidelity General Contractors is proud to service the Lo...Read more about Fidelity General contractors Inc.

Top questions to ask before hiring a building addition contractor

A professional will assist you with scope and estimates, but having a clear idea of what you want to accomplish will help communication.

Do you want professionals to do everything, or do you have the time and skill to do some of the work?

Many projects such as have a DIY component, such as painting or cleanup.

First and foremost, protect yourself and make sure the contractor and any sub-contractors are licensed, bonded and insured.

Recent reviews for Simi Valley building addition services

534160

Design Everest has been excellent to work with.

- Nicole Torres
157166

I recently used Design Everest firm for structural engineering needs with my home remodeling. I found them to be very professional, very knowledgable with everything related to Structural Engineering, on schedule from delivery point of view, very friendly...

- Steve Chang
250970

It was great working with Jacob and Allon Construction. His team completed a new rain drainage pipe for me, along with finishing the entire path that covered the drainage system, grading the land, weed cover, gravel, new planters, and a paver path. He rep...

- Jason Wise
237920

Thanks to Jacob and his team my kitchen is perfect, the designer was a huge help to visualize my ideas, this company has the whole package! no need to hire any body else

- Mari Carcache
412764

We used Atlas, Inc for our home renovation, specifically a kitchen remodel and are very grateful and happy on how the final product turned out. In the initial stages, a lot of ideas were bounced back and forth and Jacob was willing to collaborate in order...

- Shea Mulcahy
237922

Always a pleasure to work with Jacob, we aim for the best quality labor and products in every project, customer satisfaction is the key in this company

- Robert Geller
496440

I hired Jacob after interviewing five different reputable contractors to build a deck, two retaining walls, and stairs in my very steep yard in Highland Park. I spend a lot of time in my yard and had a very specific and detailed vision of how I wanted the...

- Daniel Walter
237919

I loved the fact that I could trust my contractor taking care of every thing in the project, Executed well and in timely manner. Contact Jacob

- Albert O
586861

My wife and I hired Jacob (General Contractor) and his wife (Architect) to renovate out basement room into a recreation room with a bathroom in our house in Eagle Rock. The project finished 2 months ago and we are so happy with how it turned out! Jacob wa...

- Ellen Reavey
539517

Hats off to Atlas Builders & Development for their outstanding customer service and superior workmanship. They went above and beyond to ensure our roofing project was completed on time and within budget. Highly recommended!!!

- Glenn McGrane
547425

Client satisfaction is paramount for Atlas Builders & Development. They go the extra mile to understand client needs and preferences, customizing each project to their unique requirements. Their positive customer reviews are a testament to their dedicatio...

- bill andreas
256714

Our roof was in bad shape, Jacob gave us a great price for the job. My wife and I were thoroughly pleased with the finished product Our roof looks great and we really love it!

- Rob Heller

Everything You Need to Know About Simi Valley building addition services

How do I know I am getting a fair price for my Building Addition in Simi Valley?

Every Building Addition project is different, and the price will differ depending on the specifications of your project. However, there are ways to help make sure you are getting a fair price quoted for your Simi Valley Building Addition job:

  • Talk to multiple building addition services and ask for quotes to compare. We have over 50 Building Addition companies in Simi Valley for you to choose from.
  • Read the ratings and reviews for the building addition services you’re interested in to see what other customers have said about the pricing of their own projects. Find the building addition service that you trust to give you the best service at the lowest price.

Who should I hire for a Building Addition project in Simi Valley?

Right now for a building addition project there are 50 companies in and around Simi Valley ready to help you get the job done.

Check out some of the top building addition services companies on Porch below, and keep in mind the cheapest building addition service may not be the best:

What Simi Valley zip codes are served by building addition services?

Simi Valley has 50 companies offering building addition services across various zip codes in the area. Here are some zip codes with the highest amounts of building addition services:

  • 2 companies offering building addition services in 91360.
  • 2 companies offering building addition services in 91301.

All building addition services in Simi Valley, CA

Porch Pro Headshot Ace Remodeling Inc.
Building Addition
Serves Simi Valley, California
(13)
"I highly recommend this company. Simon is a very hard worker and goes the extra mile to make sure that you as the customer is satisfied with his work. I hired them for a roofing contract and I appreciate their hard work. "
"I highly recommend this company. Simon is a very hard worker and goes the extra mile to make sure that you as the customer is satisfied with his work. I hired them for a roofing contract and I appreciate their hard work. "
Porch Pro Headshot Construction by Maya
Building Addition
Serves Simi Valley, California
There comes a point in every project when a house becomes a home. A vision unfolds into doors, walls, and windows. A dream becomes reality. Construction by Maya is your pathway to that point—a pathway along which every step has been considered so that you can walk with confidence. No details are mis...Read more about Construction by Maya
There comes a point in every project when a house becomes a home. A vision unfolds into doors, walls, and windows. A dream becomes reality. Construction by Maya is your pathway to that point—a pathway along which every step has been considered so that you can walk with confidence. No details are mis...Read more about Construction by Maya
Porch Pro Headshot Eden Development
Building Addition
Serves Simi Valley, California
We've been renovating homes and businesses in the greater Los Angeles area since 2008. Our company provides craftsmanship, and our assured use of advanced materials and technologies, and our philosophy of socially responsible building practices. Our approach to the construction process strongly emp...Read more about Eden Development
We've been renovating homes and businesses in the greater Los Angeles area since 2008. Our company provides craftsmanship, and our assured use of advanced materials and technologies, and our philosophy of socially responsible building practices. Our approach to the construction process strongly emp...Read more about Eden Development
Porch Pro Headshot CMT Construction
Building Addition
Serves Simi Valley, California
(17)
CMT Construction is a company with I wide range of services. We do everything from smaller projects to larger projects. Ranging from small Repairs to full yard makeovers, remodels and room additions. We do everything that deals with a cement product like Concrete Masonry and Tile.
CMT Construction is a company with I wide range of services. We do everything from smaller projects to larger projects. Ranging from small Repairs to full yard makeovers, remodels and room additions. We do everything that deals with a cement product like Concrete Masonry and Tile.
Porch Pro Headshot Goldenbird Home Remodeling
Building Addition
Serves Simi Valley, California
(5)
"They worked really hard every day, finished a project within 4 weeks, which was estimate time and there was not some extra costs. My bathroom is brilliant now, beautiful work provided from this company. Great contractor!!!"
"They worked really hard every day, finished a project within 4 weeks, which was estimate time and there was not some extra costs. My bathroom is brilliant now, beautiful work provided from this company. Great contractor!!!"
Porch Pro Headshot Top Leader Construction
Building Addition
Serves Simi Valley, California
(3)
"Everything from start to finish was a fantastic experience. Upon meeting Ron for the walk through and bid, we were impressed with how detailed he was right off the bat to take the time to pull together a quote for us. We immediately trusted that he would take care of us and most importantly, liste...Read more about Top Leader Construction
"Everything from start to finish was a fantastic experience. Upon meeting Ron for the walk through and bid, we were impressed with how detailed he was right off the bat to take the time to pull together a quote for us. We immediately trusted that he would take care of us and most importantly, liste...Read more about Top Leader Construction
Porch Pro Headshot Green Earth Construction & Development
Building Addition
Serves Simi Valley, California
(1)
"We are generally very skeptical about who we allow in our home. Jason made us feel very at ease about our large remodeling project that we had been discussing over several months. Jason and his crew were punctual, clean, and the quality of their workmanship is top notch. I highly recommend Jason an...Read more about Green Earth Construction & Development
"We are generally very skeptical about who we allow in our home. Jason made us feel very at ease about our large remodeling project that we had been discussing over several months. Jason and his crew were punctual, clean, and the quality of their workmanship is top notch. I highly recommend Jason an...Read more about Green Earth Construction & Development
Porch Pro Headshot Ray Romero Construction
Building Addition
Serves Simi Valley, California
Welcome! Romero Construction has a proven record of excellence in designing and managing several building and construction projects in California since 1988. No matter the size of your project, the experienced professionals at Romero Construction will plan, design, construct, and maintain your proj...Read more about Ray Romero Construction
Welcome! Romero Construction has a proven record of excellence in designing and managing several building and construction projects in California since 1988. No matter the size of your project, the experienced professionals at Romero Construction will plan, design, construct, and maintain your proj...Read more about Ray Romero Construction
Porch Pro Headshot Studos N' More
Building Addition
Serves Simi Valley, California
We are a Construction Project Management Co. We assist with your Project needs from inception to completion. We want the Owner Builder to be confident with their building process and help their development be on time, on budget. The more dreams become a reality the more reality we become. From our d...Read more about Studos N' More
We are a Construction Project Management Co. We assist with your Project needs from inception to completion. We want the Owner Builder to be confident with their building process and help their development be on time, on budget. The more dreams become a reality the more reality we become. From our d...Read more about Studos N' More
Porch Pro Headshot Golden Line Construction Inc.
Building Addition
Serves Simi Valley, California
Goldenline Construction has grown to be an internationally renowned company established on a foundation of dedication, and expertise in top-notch construction. It’s our integrity, sincerity, and transparent philosophies that allowed us to become who we are today.
Goldenline Construction has grown to be an internationally renowned company established on a foundation of dedication, and expertise in top-notch construction. It’s our integrity, sincerity, and transparent philosophies that allowed us to become who we are today.
Porch Pro Headshot Simi Valley Garage Door Repair
Building Addition
Serves Simi Valley, California
One clear alternative is your full service Simi Valley Garage Door Repair repair and replacement company. Our service areas embrace Simi Valley area and providing best technicians. We offer quick and friendly service for garage doors with bad springs, installation and maintenance.
One clear alternative is your full service Simi Valley Garage Door Repair repair and replacement company. Our service areas embrace Simi Valley area and providing best technicians. We offer quick and friendly service for garage doors with bad springs, installation and maintenance.
Porch Pro Headshot Melendez Construction LLC
Building Addition
Serves Simi Valley, California
Porch Pro Headshot Lara's Contractor Direct Inc.
Building Addition
Serves Simi Valley, California
Porch Pro Headshot Newzengland Construction
Building Addition
Serves Simi Valley, California

Latest projects near Simi Valley

Recent projects booked on Porch
Simi Valley 93063
Building Addition
Start Date
I'm flexible
Addition type
Need to have an attached 250 sq. ft. ADU build
Approximate square footage
Under 300 sq ft
Extent of design prep work
Yes, I have professional plans and designs