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Addition to existing structure builders in Pinon Hills
Cornerstone Construction Co. is a full service residential and commercial general contractor. We are capable and qualified to handle any project you have for us. We are licensed, bonded, and Insured up to 5 million dollars. Give us a call anytime to get your project going! 760-503-5545 / www.CornerstoneCCHD.com
"They did a really good job, very professional and considerate while completing the work. Genuine people!"
Laureen B on March 2018
Cornerstone Construction Co. is a full service residential and commercial general contractor. We are capable and qualified to handle any project you have for us. We are licensed, bonded, and Insured up to 5 million dollars. Give us a call anytime to get your project going! 760-503-5545 / www.CornerstoneCCHD.com
"They did a really good job, very professional and considerate while completing the work. Genuine people!"
Laureen B on March 2018
We are an ethical, honest and professional company. We are easy to communicate with. Always working with you until the job is done right and to your specifications. When working with our company you can expect integrity, prompt service and superior customer service. Always leaving the job site clean . We take pride in our services and enjoy making clients repeat clients. You can count on us to get the job done right the first time. We will meet with you at your convenience and will not keep you waiting. Call us today for your free estimate. Youll be pleased you did. Thank you
We are an ethical, honest and professional company. We are easy to communicate with. Always working with you until the job is done right and to your specifications. When working with our company you can expect integrity, prompt service and superior customer service. Always leaving the job site clean . We take pride in our services and enjoy making clients repeat clients. You can count on us to get the job done right the first time. We will meet with you at your convenience and will not keep you waiting. Call us today for your free estimate. Youll be pleased you did. Thank you
We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!
"Juan and his crew did a terrific job of remodeling what used to be a separate shower and tub area into a beautiful enclosed shower and tub combination area. The work included creating a single point of entry into a master closet using barn doors. They redid all the electrical necessary to add more lighting, and enhanced and already beautiful master bath I made it even more beautiful. Part of the work included adding an overhead rainfall shower head. One new every step of the way what needed to be done and understood all the code requirements. They worked quickly but with great care and quality. One thing I particularly admired about one in his crew is the ability to handle unknown challenges and provide a solution. We have two more baths to remodel and he will be our only choice to do that job."
Mario D on June 2025
We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!
"Juan and his crew did a terrific job of remodeling what used to be a separate shower and tub area into a beautiful enclosed shower and tub combination area. The work included creating a single point of entry into a master closet using barn doors. They redid all the electrical necessary to add more lighting, and enhanced and already beautiful master bath I made it even more beautiful. Part of the work included adding an overhead rainfall shower head. One new every step of the way what needed to be done and understood all the code requirements. They worked quickly but with great care and quality. One thing I particularly admired about one in his crew is the ability to handle unknown challenges and provide a solution. We have two more baths to remodel and he will be our only choice to do that job."
Mario D on June 2025
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
"Fast response and clear communication throughout the process."
Marco T on April 2025
Coastdesign & Build is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 5 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
Coastdesign & Build is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 5 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
MCCORMICK HOME BUILDERS INC Were a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Mike was our representative. Mike was our representative and everything he said there was to be done. They did absolutely wonderful and Mike was a really really good guy and thank you for that. I am very pleased and what they did and all the cleanup was done absolutely great thank you so much for the workmanship and all the people that you have working for you what they did for me was very professional very nice thank you again."
Barbara R on June 2025
MCCORMICK HOME BUILDERS INC Were a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!
"Mike was our representative. Mike was our representative and everything he said there was to be done. They did absolutely wonderful and Mike was a really really good guy and thank you for that. I am very pleased and what they did and all the cleanup was done absolutely great thank you so much for the workmanship and all the people that you have working for you what they did for me was very professional very nice thank you again."
Barbara R on June 2025
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime once you see our quality work. We're passionate about delivering an exceptional experience. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. We offer various services such as kitchen remodeling, restroom remodels like removing an old bathtub to replace it with your choice of a new tub or a brand new walk in shower, we also offer all types of flooring, drywall, texturing, painting interior and exterior, plumbing, electrical and much more! As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!
"Very well done. Gustavo did the job in a timely manner."
Lou Anne H on February 2025
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime once you see our quality work. We're passionate about delivering an exceptional experience. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. We offer various services such as kitchen remodeling, restroom remodels like removing an old bathtub to replace it with your choice of a new tub or a brand new walk in shower, we also offer all types of flooring, drywall, texturing, painting interior and exterior, plumbing, electrical and much more! As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!
"Very well done. Gustavo did the job in a timely manner."
Lou Anne H on February 2025
We are a licensed General Contractors specializing in custom bathroom and kitchen remodels. We are also licensed Plumbing Contractors for all of your plumbing needs including: repairs, re-pipes, new construction, and complete design & build remodels.
"Isaac with Dynasty plumbing was a lifesaver. He was knowledgeable, friendly, and so helpful!! I am so grateful to have found him, and any future plumbing issues, I will go to Isaac first!"
Deanna U on April 2022
We are a licensed General Contractors specializing in custom bathroom and kitchen remodels. We are also licensed Plumbing Contractors for all of your plumbing needs including: repairs, re-pipes, new construction, and complete design & build remodels.
"Isaac with Dynasty plumbing was a lifesaver. He was knowledgeable, friendly, and so helpful!! I am so grateful to have found him, and any future plumbing issues, I will go to Isaac first!"
Deanna U on April 2022
Family owned and operated. Over 25 years of experience. Discounts for military and seniors.
Family owned and operated. Over 25 years of experience. Discounts for military and seniors.
FAQs for addition to existing structure building service projects in Pinon Hills, CA
Yes, you can add a bathroom on a concrete slab, but the crew will need to saw-cut the slab, trench in new supply and drain lines, and then patch the concrete without weakening the foundation. Working with an experienced plumber and concrete pro keeps the structure intact and helps the new bathroom pass inspections.
schedule covers planning, permits, framing, rough-ins, finishes, and punch-list items.
Larger spaces or extensive plumbing and electrical upgrades can stretch the timeline, while a simple powder-room conversion may wrap up faster. Hiring licensed pros helps keep the schedule on track and the work up to code.
The best location depends on how your family uses the space. An upstairs bath keeps nighttime trips close to the bedrooms, while a first-floor powder room is handy for guests and everyday traffic.
Think about where plumbing lines already run, how much square footage you can spare, and what layout changes fit your budget. A pro can map out the smartest spot and handle any code hurdles.
With the right planning, you can carve out a bathroom in almost any part of the house. A successful addition requires sufficient space, proper ventilation, and access to plumbing and electrical systems. Structural modifications and adherence to building codes are essential.
This process demands careful planning and the coordination of specialized professionals who ensure that the new space meets all code requirements and functional needs.
Under specific conditions, adding an extra bedroom can boost home value more than adding a bathroom. Home value is driven by overall configuration, market demand, and functional balance. A new bedroom influences the property’s appeal in different ways, while an additional bathroom enhances living convenience. Evaluating the current layout and market trends determines the optimal choice for maximum value.
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