4.8 
77 *The Angi rating for Window Treatment Service companies in Simi Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Treatment Service needs.
*The HomeAdvisor rating for Window Treatment Service companies in Simi Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Treatment Service needs.
Last update on June 25, 2025
Serving Simi Valley, CA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"ELM was excellent, totally professional."
Serving Simi Valley, CA and surrounding areas
Approved
In business since 1978
Free estimates
Warranties offered
"Needed custom blinds installed on two bedroom windows, and the job was completed right on time and turned out perfect. We will use 3 Day Blinds for all of our future window projects. Process was easy-peasy from start to finish."
+69
Serving Simi Valley, CA and surrounding areas
Approved
In business since 2017
Free estimates
Small jobs welcome
"They were so nice! I needed new Staples on my shutters and also my dog ate one of the louvers that needed to be replaced."
+8
Serving Simi Valley, CA and surrounding areas
Approved
In business since 2025
Free estimates
Warranties offered
818 Shutters & Shades was built to fix what's broken about buying window treatments. We're not a legacy showroom — we're operators who studied this industry, found where it fails customers, and rebuilt the experience around getting it right.\n\nThat starts with curation. We've handpicked the best manufacturers and the best installers, rather than pushing whatever's easiest to sell. It continues with transparency — we've built our own technology to speed up the process, keep you informed at every step, and help you actually understand what you're buying instead of guessing.\n\nThe result is a smoother, clearer, more precise experience from your first consultation to final install — every window measured twice and fitted by installers we trust, protected by our limited lifetime warranty.\n\nSchedule your complimentary in-home design consultation:\n🌐 818shuttersandshades.com\n📞 Call or text (818) 665-7244\n✉️ [email protected]\n📅 Book online, anytime
+6
Serving Simi Valley, CA and surrounding areas
Approved (Corporate)
In business since 1996
Warranties offered
Small jobs welcome
"The customer service from choosing the window treatments to having them installed was excellent. The communication was always prompt and professional. We would definitely recommend their services."
Serving Simi Valley, CA and surrounding areas
Approved
In business since 1995
Free estimates
Warranties offered
"We had an amazing experience with Top Wood Shutter Inc! From start to finish, their team was professional, knowledgeable, and extremely helpful. The quality of the shutters and shades exceeded our expectations, and the installation was clean and efficient. They helped us choose the perfect window coverings for our home, and everything looks beautiful. The motorized shades work flawlessly and really upgraded the look and comfort of our house. Pricing was fair, communication was excellent, and they completed the job on time. If you’re looking for high-quality shutters and window shades with outstanding customer service, I highly recommend Top Wood Shutter Inc!"
+35
Serving Simi Valley, CA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Jeff was outstanding and did an amazing job at helping me install my curtain rod in my bedroom as well as install a 5 piece patio set in my backyard. He went the extra mile and made sure everything was to my style and liking, as well as excellent customer service. Both projects turned on great. Would highly recommend and hire again!"
+10
Serving Simi Valley, CA and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: True professional
"We hired McCormick to remodel our master bathroom, and the process couldn’t have been smoother. Khaled guided us through everything, and his team was skilled and respectful. They handled the job efficiently, stayed within budget, and kept our home tidy. Now, our bathroom feels like a relaxing oasis, with high-quality finishes and a modern touch we love. McCormick’s attention to detail really made the difference, and I’d gladly hire them for future remodels. This experience was everything we hoped for."
+1
Serving Simi Valley, CA and surrounding areas
Approved
In business since 1986
Free estimates
Warranties offered
"The shutters themselves are very well-made and are perfect fitting and beautiful. Every work phase with this Company went along extremely well as per the contract. Everyone at Avalon was helpful, knowledgeable and friendly/patient. They kept me advised throughout the waiting time, and even beat my expectations for timely completion. Excellent service."
+45
Serving Simi Valley, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"All work has been really great."
From average costs to expert advice, get all the answers you need to get your job done.
New windows improve curb appeal and protect your home from the elements. Learn about the average window replacement costs in Los Angeles, California.
Window repair is important for preventing damage from spreading and becoming more severe. Learn about average window repair costs in Los Angeles.
Find out the average window glass replacement cost in Los Angeles, CA. Learn what you can expect to pay for new panes and keep your home secure and efficient.
When dressing a small window, you want to let in as much natural light as possible and avoid making a space look smaller. Here are 10 inspirational window treatment ideas for small windows—from blinds to shutters to patterns and colors.
In addition to adding style to your room, layered window treatments also increase insulation, block incoming light and provide more privacy.
Looking to buy custom window treatments or just looking for window treatment ideas? This home interiors expert shares 12 common types of window treatments.
