Traditional Room Additions to Full Glass Sunrooms – We Do It All!

Sun Boss specializes in sunrooms, conservatories, patio rooms and room additions.

Sunroom Additions

You can choose from a variety of room types to add to your home, including a sunroom, extra bedroom, bathroom, garage, family room, gaming area, home office etc… Read more…

Sunrooms & Conservatories

Designed for year-round living, our sunrooms and room additions can be customized to fit your lifestyle while enhancing the beauty and value of your home… Read more…

Second Story Room Additions

Room additions are a fun and unique way to increase the visual appearance, functionality, and value of your home and add that much needed space… Read more…

Patio Covers & Screen Rooms

A Four Seasons Patio Cover provides elegant protection from the blazing sun and light rains so you can enjoy your patio when others are driven inside… Read more…

Folding Doors & Glass Walls

Folding Doors create an indoor/outdoor experience offering unmatched performance & value with energy efficiency. Open up your entire room to the Great Outdoors… Read more…

Second Story Decks & Waterproofing

Choosing a Sunboss Deck or Railing gives your deck that WOW factor. By choosing the best design for your deck, you can make a huge difference in its appearance… Read more…

Free 3D Renderings – View Your New Room Addition Before It’s Built.

We offer a full service design and build solution. Generally our designers start the process by meeting with you on site and discussing your needs, wants and ideas for your new space. We take photos and measurements of your home and your yard and then create both sun studies and virtual renditions of how your new room will look on your home. We will design your space based on the way you want to use it, the sort of furniture you choose to have in it and how you want it to interact with the rest of your home. We then produce professional drawn plans and create a full application along with a zoning review to ensure your addition can be built.

Our Glass is Better!

CONSERVAGLASS SELECT™ with Stay-Clean Technology. Read More

Fast Installation

All Windows are Buy 1 Get 1 FREE, plus you could have them installed in less than a day!

We Pay You $500

If you don’t save money on your energy-costs your first year

If you have any questions or would like to schedule a FREE consultation!

Why Us?

Sun Boss has been improving homes in Southern California since 1947. We specialize in room additions to sunrooms, patio covers to awnings, decks to second story decks, replacement windows and so much more.

We also have the most environmentally friendly products available on the market today. Over 75,000 local customers have trusted Sun Boss to design, engineer and bring their dream project a reality. Our motto is to provide exceptional customer service and the highest quality product at a very affordable price.

From the most basic installation of a solar powered attic ventilation system to a complete rebuild of your second and third floor, Sun Boss has you totally covered and protected with all the proper certifications and insurances. Your peace of mind is our JOB!

Early History

Sun Boss Corporation is the oldest patio construction company in Southern California. John Kain founded the company and started the company based on building a better product to provide solar protection to the exterior of local homes here in Southern California. Over the past six decades, Sun Boss has been developing solar protective products that ultimately provide a great deal of shade, protection and unique outdoor and indoor living areas.

Products that often qualify for federal tax credits by making your home a more efficient and comfortable place to live.

From the most basic solar powered attic ventilation system, to the most extravagant third story home addition built to bring in the sunset views, yet allow year round comfortable living. Sun Boss has worked vigorously to make your home the most efficient and comfortable home it can be.

Sun Boss provides full service contracting from original design, planning, engineering to final completion of your home addition. We have a full staff of professionals to assist in all aspects of planning your dream project. Our staff is educated and experienced in all phases, including; designing your project, planning, financing, engineering, all the way through permitting and on to final construction. Sun Boss will provide you the most attractive, functional room in your home. We create the feeling of living outdoors… indoors all FOUR SEASONS! Sun Boss boasts over 75,000 satisfied customers since 1947. We pride ourselves in helping you add a beautiful living space that not only increases property value, but will return your investment time and time again.

Family Owned and Operated

Sun Boss Corporation has been owned and operated by the Kain family since 1947. Since John Kain founded the company, the Kains’ put every effort into seeing that

Sun Boss offers the highest quality products in the industry. Since David Kain took control of the day to day operations at Sun Boss the Kains have managed to stay true to their original goals.

The goal to service our clients needs at the highest levels is made possible by the Sun Boss family of employees that assures your satisfaction. Our Production Manager is Donn Stanley. Donn oversees all phases of your project, from start to finish. He started out installing these products in the 1970s. He has 30 years experience installing, laying out jobs, and fabricating the materials that go into our projects. The last six years he has managed not only the local jobs but also our installation crews. Every one of our installers are professionally trained to specifically install our products. We emphasize this because of the number of one-man operations that do everything from plumbing to remodeling,seemingly not specializing in anything. We specialize in full service sunroom and construction remodeling, and that is all we do.

Sun Boss offers all phases, from original design/concept to drafting, engineering services through permits and on to final turn key construction projects.

Excellent Record

It is important to remember when selecting a contractor to handle your project, that you want someone that will do what they say, when they say it, and at the agreed upon price. You want to be sure the contractor of choice has a flawless record with the Contractors State License Board ( You also want to be sure you are dealing with a contractor that specializes in patio construction and or remodeling. Sun Boss Corporation holds a B-1 license. Our State License number is B-1 D03 310674. The B-1 portion covers the general construction side of our business, sunroom additions, and second story decks. Sun Boss Corporation is affiliated with the Better Business Bureau (, as well as the League of California Homeowners ( We participate in these consumer protection agencies to provide our clients peace of mind that their project will be completed as agreed upon, on time and on budget. These agencies are in the business of critiquing and evaluating the management of local businesses, please review their sites to understand the screening we have gone through for you, to give you the comfort of hiring us to be your contractor of choice. From the most basic installation of a solar powered attic ventilation system (typical install 2 hours) to a complete rebuild of your second and third floor, Sun Boss has you totally covered and protected with all the proper certifications and insurances. Your peace of mind is our JOB!

Get in Touch

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© Copyright 2015 - Sunboss Corportation. Sunboss is your Room Addition and Sunroom Specialist serving all of the Riverside, CA Valley including: Riverside, CA, Mission Valley, La Mesa, National City, Bonita, La Presa, Spring Valley, El Cajon, Santee, La Jolla, Point Loma, Coronado, Torrey Hills, Carmel Valley, Mira Mesa, Sorrento Valley, Torrey Pines, University City, Miramar, Scripp's Ranch, Tierrasanta, Sierra Mesa, Birdland, Pacific Beach, La Playa, Mountain View, Granite Hills and surrounding cities. Call us today at (951) 782-2360!