Attached ADU Additions - Upright Construction & HVAC

Why Choose UPRIGHT for Your ADU?

Certified Construction Professionals (#1124046)
Our skilled team is continuously trained to handle all aspects of Attached ADU Additions projects with precision and care.

Transparent and Fair Pricing
Benefit from our no-surprise policy with free estimates on all Attached ADU Additions endeavors, ensuring you know your investment upfront.

Prompt Project Initiation
We align schedules for timely commencement of your Attached ADU Additions project, respecting your timeline and availability.

Commitment to Quality
Your satisfaction is our priority, with a promise to deliver exceptional Attached ADU Additions results that stand the test of time.
*Contact Us For Detailed Assurance.

Call Now Attached ADU Additions

Get Your Free Attached ADU Additions Quote Today!

Complete our quick form and our ADU specialists will provide a no-obligation quote for your Attached ADU Additions. We serve all of Los Angeles and surrounding areas.

TL;DR Summary for Those in a Hurry:

Attached ADU Additions help you expand your home by building a secondary, self-contained living space that’s attached to your existing structure.
These additions create extra bedrooms, rental units, or independent living areas — boosting comfort and adding functional square footage.
Because the unit is built onto your home, construction can be more cost-effective and quicker than a detached build, often sharing utilities and structural systems.
Added living space can generate rental income, accommodate family or guests, and increase your property’s value.
Upright’s team manages design, permitting, and construction so you get a seamless addition tailored to your lifestyle and budget.

What Our Clients Say

    
 
 
         
   Andrew Krakauer 
 
 
 
 Trustindex verifies that the original source of the review is Google. Installed a new HVAC unit on my roof. The installation was quick and neat. The unit is working great. The was very reasonable. The owner Ernie was very nice and accomidating.
  
 
        
   Annie Katz 
 
 
 
 Trustindex verifies that the original source of the review is Google. I am so pleased with the work that Ernie did for me. Within 3 days of contacting him, a new  mini split air conditioner was installed and repairs were made on the wall which needed to be opened in the installation all for a very fair price. His crew were prompt, clean and professional. I recommend Upright wholeheartedly.
  
 
        
   Carlos Cuevas 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great customer service, great product knowledge, and explained the installation process well.
  
 
        
   JD Nosrati 
 
 
 
 Trustindex verifies that the original source of the review is Google. If you’re looking for an HVAC contractor you can actually trust, call Ernie at Upright Construction & HVAC. Ernie was incredibly generous with his time, patient with all of our questions, and kept his word throughout the entire project. He helped us choose the most efficient system for our home, clearly explained the pricing, handled the permits and paperwork, and Upright stuck to their quote with no surprises. His crew was professional, respectful, efficient, and treated our home with tremendous care. We hired Upright to remove our old HVAC system and install our new one, but after this experience, Ernie will be our first call for any future construction or contracting work. Honest, knowledgeable, dependable, and genuinely cares about his customers. I would recommend Upright Construction & HVAC to anyone. Thank you again, Ernie and team!
  
 
        
   JILLIAN YEE-PHAM 
 
 
 
 Trustindex verifies that the original source of the review is Google. So thankful for Ernest and his team to come out on a whim. Answer questions, provide knowledge, and did not try to upsell or spill BS, just a straight shooter. He got me the best deal at the best price. I am thankful that there is still nice quality people in the world!
  
 
        
   Jo Anne 
 
 
 
 Trustindex verifies that the original source of the review is Google. My AC broke on a Saturday night during a heat wave. Ernie fit me in that same night and fixed the problem. He was professional, pleasant, and reasonably priced. I'd recommend him and use him again.
  
 
        
   Lacey Calhoun 
 
 
 
 Trustindex verifies that the original source of the review is Google. If I could give Ernie 10 stars, I absolutely would!! I messaged him at 11pm on a Friday night after my A/C went out on me in this insane heat wave and he got back to me right away and then came out first thing the next morning on a Saturday. I genuinely thought I was going to perish in this heat until Monday but NOPE… by 9am, I was already up and running again and with air that was even colder than it was before it went out. As a single woman, I’m used to different contractors using that to underestimate me to upsell on things I don’t need but there was zero of that with Ernie. In fact, quite the opposite. Ernie worked to get just what needed fixing fixed and explained everything to me in a digestible way to help me get the most out of my A/C unit without having to come thousands of dollars out of pocket for a new unit. On top of that, he has the most genuine soul and is a family man so I felt safe and completely taken care of. His service is top notch and not the kind you get anymore these days. If you need any HVAC or construction work done, look no further. 10/10 recommend Ernie… he’s a gem!!
  
 
        
   Jordan Levinson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Was able to come through and fix immediately on a super hot day! So thankful and so nice !
  
 
        
   Katherine Takasago 
 
 
 
 Trustindex verifies that the original source of the review is Google. Ernie communicated often while en route to our house.  Once he got there, he assessed the situation and presented a reasonable solution that he was willing to do right now, even though it was getting late.  He didn’t mind at all since it was cooler and our issue would be fixed.  It was a wonderful experience!  Very up front and honest, which was much appreciated.
  
 
        
   Kelly Shapiro 
 
 
 
 Trustindex verifies that the original source of the review is Google. I called Ernie due to our A/C leaking. He came out right away and was very friendly and pleasant. The issue ended up being a minor repair (a clogged P Trap that needed to be replaced). The cost was $375, but he knocked off $25. He was personable and helpful, and I am grateful that he was able to come out so quickly. We would definitely call Ernie again.

ADU Attached ADU Additions.

Full-service ADU solutions for your project.

Service Types & Solutions

At Upright Construction & HVAC, we specialize in attached ADU additions, offering a comprehensive range of service types and solutions tailored to your needs. As an experienced attached ADU contractor, we seamlessly blend home addition expertise with impeccable attached ADU design to maximize your property’s potential. Our team skillfully manages each phase, from concept to completion, ensuring meticulous attention to detail and premium craftsmanship. We understand the unique value an attached accessory dwelling can bring—whether as added living space, income opportunity, or enhanced property value. We approach every project with refined competence and sincere respect for your goals, delivering high-quality results that balance sophisticated design with practical function. Choose Upright Construction & HVAC for an exceptional, inclusive ADU experience that elevates your home.

What’s Included

At Upright Construction & HVAC, our Attached ADU Additions—designed and built by our expert team—offer comprehensive solutions tailored to elevate your living space. Each home addition ADU includes full-service design collaboration, seamless integration with your existing structure, premium materials, and meticulous craftsmanship. As a distinguished yet accessible attached ADU contractor, we guide you through permitting, planning, and construction with transparency and efficiency. Our refined approach ensures your attached accessory dwelling is both elegant and functional, perfectly suited to your needs while maintaining strict adherence to local codes. With Upright Construction & HVAC, you receive not only exceptional build quality, but also personalized attention and enduring value, as we deliver exclusive results while welcoming clients of all backgrounds and project scopes.

Our Process & Expertise

At Upright Construction & HVAC, we specialize in attached ADU additions, seamlessly blending technical mastery with a client-centered approach. From concept through completion, our process for home addition ADUs and attached ADU design is guided by precision, transparency, and respect for your vision. As an experienced attached accessory dwelling contractor, we deliver innovative solutions tailored to meet both functional needs and aesthetic aspirations. Our expert team collaborates closely with clients at every stage, ensuring clarity, quality, and optimal value. We are proud to offer a premium construction experience grounded in inclusivity, inviting all homeowners to benefit from our refined expertise. With Upright Construction & HVAC, you can expect outstanding results—crafted with care, delivered with integrity, and designed to enhance both property and lifestyle.

Why Choose Us for Construction

At Upright Construction & HVAC, we specialize in attached ADU additions that seamlessly enhance your living space and property value. As a distinguished attached ADU contractor, we combine architectural innovation with functional design, ensuring every home addition meets the highest standards of craftsmanship and efficiency. Our team brings deep technical expertise to every attached accessory dwelling project, offering tailored solutions that reflect your unique needs while maximizing your investment. We believe superior quality and thoughtful design should be accessible to all clients, fostering an experience marked by respect, clarity, and collaboration. Choosing Upright Construction & HVAC means partnering with professionals who balance sophistication with approachability—delivering premium results while ensuring you feel informed, valued, and genuinely confident in your decision.

Energy-Efficient Solutions

Upright Construction & HVAC specializes in designing and constructing energy-efficient attached ADU additions, seamlessly integrating comfort with sustainability. As a leading attached ADU contractor, our approach balances technical precision with client collaboration, ensuring your home addition ADU maximizes space, insulation, and long-term value. Every attached ADU design leverages high-performance materials, advanced HVAC solutions, and thoughtful architectural details to create an efficient, beautiful living environment. At Upright Construction & HVAC, we combine premium craftsmanship with a value-conscious mindset, offering clients an exceptional return on investment without compromising on quality. Our dedicated team guides you through each step, delivering an exclusive yet inclusive service that welcomes a diverse range of projects and ensures every client’s experience is both personalized and rewarding.

Call now to get a free ADU quote on your Attached ADU Additions.

Call Now Attached ADU Additions

Areas We Serve For Attached ADU Additions In Los Angeles

Elevating Los Angeles Homes with Attached ADU Additions

In the constantly evolving neighborhoods of Los Angeles, homeowners are discovering fresh ways to enhance property value and expand living space. As an established Attached ADU Contractor, Upright Construction & HVAC leads the way in providing state-of-the-art solutions for those seeking versatility and sophistication. Specializing in home addition ADU projects—particularly attached ADU design—our team transforms your existing residence, creating seamless, functional enhancements without compromising aesthetic excellence or comfort.

The Advantages of Attached ADUs

Choosing an attached accessory dwelling unit is more than just adding square footage—it's about embracing an array of possibilities. An expertly designed and constructed attached ADU can serve as a luxurious guest suite, a comfortable space for aging family members, or a high-end rental opportunity that generates substantial supplemental income. Whether your vision involves integrating premium finishes or optimizing for energy efficiency, our approach pairs custom craftsmanship with pragmatic design, ensuring each project is a true reflection of your lifestyle and aspirations.

Upright Construction & HVAC Commitment to Excellence

When selecting an Attached ADU Contractor, discerning homeowners value both expertise and integrity. Upright Construction & HVAC delivers a refined client experience, starting with open, transparent pricing and clear communication at every phase. Our design philosophy prioritizes seamless integration—both structurally and visually—ensuring that your new home addition ADU feels like an organic extension of your current property. Every detail is handled with care, whether we're navigating city permitting or selecting contemporary fixtures that embody quiet elegance.

Tailored Attached ADU Design Solutions

A successful attached ADU design harmonizes with your main residence while maximizing natural light, functionality, and privacy. Our architectural team collaborates closely with homeowners to understand current needs and anticipate future requirements. By blending thoughtful space planning with premium materials, we deliver attached accessory dwelling units that provide tangible value—raising your standard of living and strengthening your property’s market appeal. Upright Construction & HVAC’s holistic approach considers everything, from sustainable design practices to advanced HVAC systems for optimal comfort all year round.

Transparency and Value Without Compromise

At Upright Construction & HVAC, we believe that expert craftsmanship should be accessible. Our clients appreciate transparent, fair pricing alongside an unwavering commitment to quality. From initial consultation to completion, you receive honest guidance and a tailored project roadmap that fits both your vision and your budget. This combination of sophistication and integrity has made us a trusted Attached ADU Contractor throughout Los Angeles.

Trust Upright Construction & HVAC for Your Next Home Addition ADU

Investing in an attached ADU is an opportunity to add lasting value—both for today and for generations to come. Let us help you redefine your living space and realize the full potential of your property with distinctive attached ADU additions. For a personalized consultation, contact Upright Construction & HVAC at (818) 219-2684 and discover the difference that thoughtful design, superior craftsmanship, and transparent service make. Your dream home is closer than you think, and our team is honored to guide you every step of the way.

Our Simple Approach to Attached ADU Additions

How we approach Attached ADU Additions your project.

Service Overview

At Upright Construction & HVAC, we specialize in offering comprehensive attached ADU additions, expertly guiding clients through every stage—from initial design to final construction. As a trusted attached ADU contractor, we combine meticulous craftsmanship with innovative attached ADU design, ensuring seamless integration with your existing home. Our approach emphasizes both quality and efficiency, resulting in home addition ADUs that enhance living space and property value. We understand the complexities of attached accessory dwelling projects, providing clear communication and expert guidance throughout. While our solutions are crafted to the highest standards, we remain value-conscious, respecting your investment and priorities. At Upright Construction & HVAC, every client receives personalized attention and an exceptional experience, no matter the scale or scope of the project.

How We Deliver

At Upright Construction & HVAC, we specialize in delivering refined attached ADU additions that enhance your property’s functionality and value. As a trusted attached ADU contractor, our experienced team guides you seamlessly through every stage, from initial design concepts to flawless execution. Our approach leverages advanced construction knowledge with a genuine commitment to client care, ensuring every attached accessory dwelling reflects both superior craftsmanship and thoughtful customization. We understand the investment you’re making in your home addition ADU, and we’re dedicated to maximizing your return through energy-efficient solutions, premium materials, and meticulous attention to architectural detail. Our service is exclusive in its quality yet inclusive in its accessibility, providing all clients with a high-caliber experience attuned to individual aspirations and budgets.

Customer Benefits

Choosing Upright Construction & HVAC as your attached ADU contractor means gaining a trusted partner dedicated to quality, innovation, and value. Our expert team specializes in home addition ADUs, delivering meticulously crafted attached ADU designs that seamlessly blend with your existing property. We offer a refined yet approachable experience, guiding you through each step with clarity and respect. Our commitment to superior craftsmanship ensures your investment yields increased property value, functional living space, and lasting satisfaction. At Upright Construction & HVAC, we take pride in delivering premium results that suit a variety of lifestyles and budgets, making every client feel both privileged and genuinely supported. Entrust your project to us and experience elevated service tailored to your unique vision and needs.

Next Steps & Scheduling

At Upright Construction & HVAC, we specialize in the seamless integration of attached ADU additions, leveraging our expertise in design, construction, and home expansion. Whether you are envisioning a sophisticated home addition or a thoughtfully designed attached accessory dwelling, our team ensures a refined solution tailored to your unique needs. To schedule a service, simply reach out to us via our website or phone, and one of our project specialists will guide you through an initial consultation. We prioritize transparent communication and respect your time by crafting clear project timelines and comprehensive estimates. With Upright Construction & HVAC, you can trust that every detail will be handled with precision, delivering a premium ADU experience that enhances both your property’s value and your quality of life.

Call now to get a free ADU quote on your Attached ADU Additions.

Call Now Attached ADU Additions

Professional Attached ADU Additions let you grow your home with a connected living unit that enhances comfort, adds income potential, increases property value, and simplifies build logistics with expert support.

Frequently Asked Questions About Attached ADU Additions

What types of ADU projects does Upright handle?

Upright specializes in a wide range of ADU projects, including home construction, remodeling, and renovations. Our services cover Attached ADU Additions and more, ensuring comprehensive solutions for your building needs.

How does Upright approach project planning and management for ADU?

We employ a detailed project planning and management process for ADU, which includes consultation, needs assessment, budget development, and scheduling. Our aim is to ensure that your project is executed seamlessly from start to finish.

What is the importance of regular Attached ADU Additions inspections and maintenance?

Regular inspections and maintenance for Attached ADU Additions are critical to identifying potential issues before they become major problems. This proactive approach helps in preserving the integrity and safety of your structure, reducing long-term repair costs.

Can Upright assist with design and build services for ADU?

Certainly! Upright offers comprehensive design-build services for ADU projects. This integrated approach ensures that the design and construction phases are coordinated effectively, resulting in a more streamlined and efficient process.

Does Upright offer customized solutions for unique Attached ADU Additions projects?

Yes, every Attached ADU Additions project is unique, and we pride ourselves on offering tailored solutions that meet specific client needs. Our team works closely with you to understand your vision and deliver results that exceed expectations.

How do I get a quote for a home addition ADU, attached ADU design, attached accessory dwelling project?

To receive a quote for your home addition ADU, attached ADU design, attached accessory dwelling project, simply contact us at +1(818) 219-2684. We will provide a transparent and detailed quote based on your specific project requirements and scope.

What are the key benefits of choosing Upright for ADU services?

Choosing Upright for your ADU services ensures you receive expertise, quality craftsmanship, and personalized service. Our commitment to excellence and efficiency sets us apart in the construction industry.

Schedule Your Attached ADU Additions Now

Andrew Krakauer

Installed a new HVAC unit on my roof. The installation was quick and neat. The unit is working great. The was very reasonable. The owner Ernie was very nice and accomidating.

Annie Katz

I am so pleased with the work that Ernie did for me. Within 3 days of contacting him, a new mini split air conditioner was installed and repairs were made on the wall which needed to be opened in the installation all for a very fair price. His crew were prompt, clean and professional. I recommend Upright wholeheartedly.

Carlos Cuevas

Great customer service, great product knowledge, and explained the installation process well.

JD Nosrati

If you’re looking for an HVAC contractor you can actually trust, call Ernie at Upright Construction & HVAC. Ernie was incredibly generous with his time, patient with all of our questions, and kept his word throughout the entire project. He helped us choose the most efficient system for our home, clearly explained the pricing, handled the permits and paperwork, and Upright stuck to their quote with no surprises. His crew was professional, respectful, efficient, and treated our home with tremendous care. We hired Upright to remove our old HVAC system and install our new one, but after this experience, Ernie will be our first call for any future construction or contracting work. Honest, knowledgeable, dependable, and genuinely cares about his customers. I would recommend Upright Construction & HVAC to anyone. Thank you again, Ernie and team!

JILLIAN YEE-PHAM

So thankful for Ernest and his team to come out on a whim. Answer questions, provide knowledge, and did not try to upsell or spill BS, just a straight shooter. He got me the best deal at the best price. I am thankful that there is still nice quality people in the world!

Jo Anne

My AC broke on a Saturday night during a heat wave. Ernie fit me in that same night and fixed the problem. He was professional, pleasant, and reasonably priced. I'd recommend him and use him again.

Lacey Calhoun

If I could give Ernie 10 stars, I absolutely would!! I messaged him at 11pm on a Friday night after my A/C went out on me in this insane heat wave and he got back to me right away and then came out first thing the next morning on a Saturday. I genuinely thought I was going to perish in this heat until Monday but NOPE… by 9am, I was already up and running again and with air that was even colder than it was before it went out. As a single woman, I’m used to different contractors using that to underestimate me to upsell on things I don’t need but there was zero of that with Ernie. In fact, quite the opposite. Ernie worked to get just what needed fixing fixed and explained everything to me in a digestible way to help me get the most out of my A/C unit without having to come thousands of dollars out of pocket for a new unit. On top of that, he has the most genuine soul and is a family man so I felt safe and completely taken care of. His service is top notch and not the kind you get anymore these days. If you need any HVAC or construction work done, look no further. 10/10 recommend Ernie… he’s a gem!!

Jordan Levinson

Was able to come through and fix immediately on a super hot day! So thankful and so nice !

Katherine Takasago

Ernie communicated often while en route to our house. Once he got there, he assessed the situation and presented a reasonable solution that he was willing to do right now, even though it was getting late. He didn’t mind at all since it was cooler and our issue would be fixed. It was a wonderful experience! Very up front and honest, which was much appreciated.

Kelly Shapiro

I called Ernie due to our A/C leaking. He came out right away and was very friendly and pleasant. The issue ended up being a minor repair (a clogged P Trap that needed to be replaced). The cost was $375, but he knocked off $25. He was personable and helpful, and I am grateful that he was able to come out so quickly. We would definitely call Ernie again.