Find a home addition contractor in Simi Valley, CA

Find Home Addition Contractors in Simi Valley, CA

Find Home Addition Contractors in Simi Valley, CA

Confirm your location to see the best home addition contractors near you.
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Find Home Addition Contractors in Simi Valley, CA

Confirm your location to see the best home addition contractors near you.
Zip code

Top 10 home addition contractors in Simi Valley, CA

Homeowners agree: these Simi Valley home addition contractors are highly rated for knowledge, experience, communication, and more.
Loyalty Counts Construction Inc.

Loyalty Counts Construction Inc.

New on HomeGuide
19+ years in business
Serves Simi Valley, CA
After 19 years in business, we know one thing—projects only go right when there’s a clear plan and the right team behind it. That’s what we deliver. As a licensed B General Building Contractor, we focus on quality workmanship, clear communication, and a smooth, stress-free process from start to finish. Whether it’s a bathroom remodel, new construction, roofing, patio work, or simple home repairs, we handle it all with the same level of care and attention to detail. No shortcuts. No guesswork. We understand you’re investing your hard-earned money into your home—and we treat it like it’s our own. If you’re ready for a contractor who shows u
Graceland Remodeling

Graceland Remodeling

5.0Exceptional(6)
10+ years in business
Serves Simi Valley, CA
Claire F. says, "It’s rare to find someone this reliable so honest and definitely skilled. They showed up when they said they would. Listened to what we wanted and advised accordingly . Definitely delivered amazing results!!! We’re extremely happy with the work and highly recommend Graceland remodelling" Read more
Gold Standard Builders, Inc.

Gold Standard Builders, Inc.

4.8Excellent(19)
13+ years in business
Serves Simi Valley, CA
Rebeca M. says, "I hired Gold Standard Builders to remodeled my entire kitchen, three bathrooms, new flooring and paint the entire house, as well as chimney wall update. I am very pleased with the results. Working with Adam was a pleasure, he is very professional and easy to work with. I would recommend Gold Standard Builders to anyone including friends and family and I will use them in the future for any other projects. Very pleased five stars all the way!" Read more
Pacific Construction

Pacific Construction

New on HomeGuide
8+ years in business
Serves Simi Valley, CA
Hi my name is Domingo and I own my construction company that's available for any service's you'll need it. Please feel free to contact me for a free estimate. I will be more than happy to help you with your project. As a dedicated general contracting provider who's been in the construction industry for more than 25+ and highly experienced, I pride myself on delivering quality workmanship and personalized service to meet your unique requirements so I am trustworthy!!
Power Mind Electric LLC

Power Mind Electric LLC

5.0(1)
1 hire on HomeGuide
2+ years in business
Serves Simi Valley, CA
Joshua David H. says, "Very professional, easy to communicate with, excellent work! I will be using Power Mind Electric for all my electrical needs, thanks again!!!" Read more
ZH Plumbing & Water Heaters

ZH Plumbing & Water Heaters

New on HomeGuide
Serves Simi Valley, CA
ZH Plumbing and Water Heaters has been proudly serving Los Angeles for over 20 years, offering reliable plumbing services available 24/7 for urgent repairs. Whether it’s a small home repair or a large commercial plumbing project, our experienced team responds quickly to diagnose and fix the problem
ION Builders, Inc.

ION Builders, Inc.

New on HomeGuide
8+ years in business
Serves Simi Valley, CA
ION Builders Inc. is a licensed, bonded, and insured outdoor construction specialist serving Los Angeles and Ventura County with over 17 years of experience. Family-owned and 5-star rated, we specialize in custom deck building, patio covers, pergolas, fence installation, and complete backyard renovations. Every project includes a FREE in-home consultation, detailed estimate, and 3D design rendering. As certified Trex and TimberTech builders, we deliver premium craftsmanship on time and within budget. Serving Reseda, Encino, Sherman Oaks, Woodland Hills, Calabasas, Beverly Hills, Simi Valley, Thousand Oaks, Burbank, Glendale, Pasadena
Alpha Structural Inc.

Alpha Structural Inc.

New on HomeGuide
34+ years in business
Serves Simi Valley, CA
Alpha Structural, Inc., founded in 1992, serves the Los Angeles area and beyond with unrivaled foundation and hillside repair services. Renowned as the leading foundation repair contractor in the region, their expertise extends to structural upgrades, retrofits, and landslide remediation. With a reputable track record, they have inspected over 15,000 properties and repaired over 5,000, earning them the title of Best Foundation Repair. As a design and build firm, they skillfully handle all aspects of a project, from engineering to permitting and construction.
A2Z Home Builder

A2Z Home Builder

New on HomeGuide
22+ years in business
Serves Simi Valley, CA
A2Z Home Builder (www.a2zhomebuilder.com)– your trusted Los Angeles licensed contractor for residential and commercial projects. specialize in remodels, renovations, new construction, and custom builds, delivering quality craftsmanship with honesty and efficiency. With transparent pricing, and a dedicated team, we turn your vision into reality on time and within budget. 1. FREE CONSULTATION We start with a conversation to understand your vision, needs, and budget. This helps us give you honest advice and a clear plan from day one. 2. Design & Planning ​Our team works with you to finalize the design, select materials, and create a detailed pro
KT Assembly

KT Assembly

New on HomeGuide
2011+ years in business
Serves Simi Valley, CA
My name is Karen and I own KT Assembly, a professional assembly and installation service based in Los Angeles. I specialize in furniture assembly, cabinet installation, shelving, and general handyman-style setup work. I am interested in joining HomeGuide as a service provider and offering my assembly services to your customers.

Your Home Addition questions, answered

Answers to commonly asked questions from the experts on HomeGuide.

What is a home addition?

A home addition is a new structure added to an existing home. Home additions create more living space, accommodate a growing family, and improve the home’s overall value.

A home addition can be completed by making a single room bigger or adding an entirely new room or second story to the home. A more affordable home addition option is to convert an existing garage, basement, or attic into a more functional and comfortable living space.

Does a home addition increase property value?

A well-built home addition can increase property value. The increase in square footage adds value, especially if the addition includes functional and well-designed living spaces. An addition that adds an extra bedroom, bathroom, or larger kitchen can make the home more appealing to potential buyers.

How can I finance a home addition?

You have various financing options for a home addition, such as:

  • Home equity loans – These bank loans allow you to borrow a lump sum by using your home equity as collateral.
  • Home equity line of credit (HELOC) – Unlike a lump sum, this revolving credit line enables you to borrow against your home equity as needed.
  • Cash-out refinances – By refinancing your mortgage for an amount exceeding your current balance, the lender provides the surplus in cash, which can be used for home improvements.
  • Personal loans – Unsecured and without collateral, personal loans have higher interest rates, determined by your creditworthiness and loan approval.
  • Credit cards – Consider using a low-interest-rate credit card for smaller home additions, ensuring prompt repayment.

How can I save on a home addition?

Consider the following recommendations to reduce the expenses associated with a home addition:

  • Opt for a straightforward design with minimal features to keep costs down.
  • Construct the smallest addition that satisfies your requirements and complies with local regulations.
  • Explore the option of repurposing existing spaces, such as basements, garages, or attics, which is generally more affordable than building a new structure.
  • Do basic tasks like painting and interior finishing on your own to cut down on professional labor expenses.
  • Select budget-friendly building materials and finishes in more spaces, and splurge on a few items with the most impact.

How do I choose a home addition builder?

Follow these suggestions to get the best home addition contractor near you.

  • Seek estimates from several contractors for the same addition size and features, allowing for informed comparisons.
  • Evaluate the builder's reputation by checking recent reviews on HomeGuide and Google to assess their performance.
  • Request a site visit to see the contractor's construction methods and gauge their workmanship firsthand.
  • Choose a contractor with proven experience in the specific type of home addition you desire.
  • Protect yourself by requesting an itemized written contract that outlines the scope of work, specifications, and payment terms to prevent any misunderstandings.
  • Inquire about the contractor's preferred lenders to streamline the financing process and potentially secure better terms.
  • Exercise caution and avoid making large upfront payments. Never pay in full or in cash, as this could leave you vulnerable to potential issues.

What questions should I ask a home addition contractor?

Here are some helpful questions to ask a home addition contractor:

  • How many years have you been specializing in home addition projects?
  • How many home additions have you successfully completed within the past year?
  • Do you provide design services to help create a floor plan for the home addition?
  • Can you provide me with a list of references from previous clients, along with their contact information, so I can gather feedback on your work?
  • Do you have a portfolio showcasing your past home addition projects that I can review?
  • Are there any recent home addition projects I can visit to see the quality of your workmanship firsthand?
  • Are you fully licensed, insured, and bonded to protect me from any potential liabilities?
  • Can you advise me on the most suitable locations for building an addition to my home?
  • Can you provide me with a detailed cost estimate for the home addition project?
  • Are there any cost-effective strategies we can consider to reduce the overall expense of the project?
  • Can you provide a realistic timeline for completing the home addition project?
  • Who will be my designated project coordinator responsible for overseeing the project's progress?
  • Do you employ your own experienced crew, or do you subcontract the work to other contractors?

Reviews for Simi Valley home addition contractors

Recent success stories from people in the Simi Valley area.
Daniella S.
Graceland were great from the beginning to the end. We did interior painting and they did a great job. I definitely recommend them
Graceland Remodeling
Kathy M.
They were on time when they said they would be, the one time that they didnt Adam called me immediately and they came. Adam is very tight on the work quality and the time that they come.
Gold Standard Builders, Inc.
Ken S.
Sky Renovation and new construction are true professionals in every aspect of work. They recently remodeled our kitchen and we wanted combination of modern and classic look so not simple task but remodeled kitchen looks just as we wished it will look like, even better. We didn't had a single complaint about Sky Renovation team, they were nice, quick and efficient, informed us about working progress all the time and gave us some very important advises. Also the quality of materials they used was highest quality. This contractor deserves highest possible rating, thanks!
Sky Renovation & New Construction
Henry D.
We had a stellar experience with AGA construction. They were quick, provided great service, and the quality of the work and finishes is very professional, sturdy, and straight. They gave us a 3d layout of our bathroom and our kitchen. This made it very easy to visualize and decide exactly which way we wanted to go. AGA has great design ideas and suggestions. Furthermore, they have great vendors and got us some great pricing. We will continue to use AGA construction and we highly recommend them!
AGA Construction Inc
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