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Allgreen Builders
- Kitchen
- Communication
- Flooring
“Amazing service thank you so much for all your help happy with my outcome”
Best Interior Designers and Decorators in Simi Valley, CA
24 firms listed · 4 in Simi Valley · 2 open 24/7 · 9 open weekends · 19 rated 4.5+
Data verified October 18, 2026
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Montanio Design Group
“Looking forward to investigating more about this company”
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Cole Martinez
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Mikhaila Bellenbaum
“I bought a house last July 2022 and we've been able to design our place one room at a time and it's literally exactly how I imagined my house to look - I couldn't have done it without her!”
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Advanced Interior Designs
“Good quality chairs, one of best sellers.”
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JLP Design
“She is professional, responsive and very easy to work with.”
Listed for homeowners in and around Simi Valley, CA, these 24 firms take interior work. Whether a firm does full renovations or furnishing and styling only, and how it says it charges, comes from its own website, with ratings and quotes pulled from public reviews.
Area overview: Simi Valley, CA
4 of the 24 firms we list are based in Simi Valley; the other 20 serve Simi Valley from towns including Westlake Village (10 mi), Thousand Oaks (9 mi) and Woodland Hills (10 mi). 20 of the firms on this page have a rating, from 4.3 to 5.0 across 383 reviews; 2 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these firms on specific qualities, they most often praise quality (93%), professionalism (87%) and responsiveness (82%). The topics that come up most in reviews of the firms on this page are "communication" and "price". 2 are open around the clock; 8 are open on Saturdays and 5 on Sundays. The services the firms on this page list most often on their websites are bathroom remodeling (2), kitchen remodeling (2), new construction (2) and room additions (2). 3 show a license on their websites and 2 have a BBB rating of A or A+. 16 have ten or more years of experience, the longest 43 years. 2 offer emergency call-outs; 7 give free estimates; 3 are family- or locally-owned and 2 list coupons or special offers. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book.
Where can I see a firm's finished projects?
All 24 firms here list a website, and the portfolio is the part worth studying. Look for projects the size of yours rather than the showpieces, and look for the same hand across several homes. Ask whether the photographs show work the firm designed or work it only styled for the camera.
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Story For Home
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Kylie Interiors
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Marcali Inc.
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JRP Design & Remodel
- Family Room
- Home Remodel
- Studs
“There really was no comparison in the confidence Justin provided, versus other contractors we interviewed: from creative ideas, to ensuring quality work, and selling us with the turnkey services offered through the Design and Build process”
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Daniel's Custom Upholstery
- Team
- Sofa
- Leather
“Kelly, the designer with whom I worked is most talented and was very thorough and responsive to ensure no errors were made and everything was completed to my satisfaction.”
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State Restoration
- Condo
- Knowledge
- Water Damage
“We are thoroughly pleased with the outcome and would highly recommend State Restoration to anyone seeking reliable, professional, and exceptional service for their home improvement projects.”
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Dream House Interiors
- Price
- Team
- Creative
“I called this place a few weeks ago for the first time to schedule an in home estimate appointment, I needed some drapes replaced and a couple other things done in my home...”
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Lindsey Brooke Design Studio and Shop
- Team
- Taste
- Eye
“Lindsey is down to earth and practical - she creates beautiful spaces within your budget and never makes you feel like you are working with a stuffy designer.”
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Home Staging by Holmestage
- Project
- Art
- Market
“Having worked with other staging companies, I can confidently say Holme Stage gave their absolute best to make our home extraordinary, resulting in the best sale outcome.”
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Van Parys Architecture + Design
- Meeting
- Ideas
- Vision
“The sophistication and beauty of the ideas and materials make for an inspirational and fulfilling experience and to a ultimate end product of which clients are always proud.”
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I.t.s. Home Renovations
- Remodeling
- Kitchen
“Although they delayed the work by one week but I am pleased with the outcome that I convinced my mom to remodel her kitchen and the team is set to start next week!”
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Nu Design
- Project
- Needs
- Kitchen
“Brandon met with us multiple times throughout the design phase to perfect the design by going over all of the small details and to create something functional yet beautiful that will serve my family and I for years to come.”
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Jubilee Interiors
- Ideas
- Choice
- Home
“In her work, Judi was very professional, walking us through every step in the process and detail, taking our vague ideas and turning it to a vibrant design that we enjoy every day.”
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Alexandra Rae Interior Design
“Her team defined the look and style from indoor, outdoor paint, lighting fixtures, furnishing, window treatments, bedding, linens, towels, and even the art work.”
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Eileen Gould
- Ethic
- Kitchen
“She and her team spoils their clients by taking care of every detail, keeps up with constant communication, provides top notch tradesmen and are so organized that everything got completed very quickly.”
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LA Construction Group Inc
- Projects
“And when some minor things needed to be changed or improved (there always are those few little things, trust me), he and his team responded and addressed all concerns immediately.”
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Nixsi Design
- Space
- Communication
- Remodel
“They helped me visualize everything, found pieces in my price range, stayed in close communication with all the vendors & contractors, and did it all with great attitudes.”
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Sitting Pretty Inc.
- Selection
- Sales
- Design
“That way I don't have to spend hours either freezing or baking in the very expansive warehouse they have -- no doubt it would cost a lot of money to make it a habitable temperature in there!”
Interior Design Services in Simi Valley, CA Cost Estimates
Minimum cost
$357
Maximum cost
$52347
National Average
$7738
Avg Per Hour Rates
$173
$2276
$13402
Average price range is based on 524 cost profiles
Why these companies made our list
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