Peter T. Erdelyi and his office of 15 employees have designed thousands of residential and commercial projects over the past 37 years - remodels, additions and new buildings
"Quoted one price and kept asking for more money. They only came to the house once, and any changes I had to make (because they didn't have all the information) they changed me more."
Dominic M on July 2023
Peter T. Erdelyi and his office of 15 employees have designed thousands of residential and commercial projects over the past 37 years - remodels, additions and new buildings
"Quoted one price and kept asking for more money. They only came to the house once, and any changes I had to make (because they didn't have all the information) they changed me more."
Dominic M on July 2023
Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.
"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"
Constantine P on January 2020
Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.
"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"
Constantine P on January 2020
At HavenHub, we're more than just a home service company – we're your trusted partner in creating havens of comfort and joy. Specializing in several verticals such as Landscaping, Roofing and HVAC solutions, we bring expertise and dedication to every project we undertake. What sets us apart is our commitment to putting our customers first. From the moment you engage us, you'll receive a world class experience with us. Whether it's transforming your outdoor space into a lush oasis or ensuring your indoor climate is just right, we're here to make it happen. At HavenHub, your satisfaction and peace of mind are our top priorities, and we're honored to be a part of your home journey. Welcome to the HavenHub family, where your home is our passion.
"Exceptional service, high quality work and a fair price."
Peter S on March 2025
At HavenHub, we're more than just a home service company – we're your trusted partner in creating havens of comfort and joy. Specializing in several verticals such as Landscaping, Roofing and HVAC solutions, we bring expertise and dedication to every project we undertake. What sets us apart is our commitment to putting our customers first. From the moment you engage us, you'll receive a world class experience with us. Whether it's transforming your outdoor space into a lush oasis or ensuring your indoor climate is just right, we're here to make it happen. At HavenHub, your satisfaction and peace of mind are our top priorities, and we're honored to be a part of your home journey. Welcome to the HavenHub family, where your home is our passion.
"Exceptional service, high quality work and a fair price."
Peter S on March 2025
#1 Artificial Grass Company in Southern California We carefully and closely work with your vision to help you create an invigorating and functional space with artificial grass, putting greens, pavers and more... that not only looks great but is also one that can be enjoyed for many years with very little maintenance and a lifetime warranty!
"Excellent work, we are so happy with our new backyard. Tony and his crew did everything as discussed and made sure we were happy with it every step of the way. We got three estimates and Jason’s was the best, he really took our ideas and worked with us to get the backyard we envisioned. Great pricing and amazing to work with! Will definitely recommend them to our friends and family who need landscaping work done."
Linh D on April 2025
#1 Artificial Grass Company in Southern California We carefully and closely work with your vision to help you create an invigorating and functional space with artificial grass, putting greens, pavers and more... that not only looks great but is also one that can be enjoyed for many years with very little maintenance and a lifetime warranty!
"Excellent work, we are so happy with our new backyard. Tony and his crew did everything as discussed and made sure we were happy with it every step of the way. We got three estimates and Jason’s was the best, he really took our ideas and worked with us to get the backyard we envisioned. Great pricing and amazing to work with! Will definitely recommend them to our friends and family who need landscaping work done."
Linh D on April 2025
Lanter Landscapes, in business since 1980, is your locally owned and operated family business. Providing design and build services, including sod, irrigation, concrete, retaining walls, interlocking concrete pavers, landscape lighting, and more! Call us today for a free estimate!
"We cannot say enough wonderful things about Jesse and Edward Lanter (father and son) and their incredible team! They transformed our backyard into a beautiful and functional space. They were friendly and professional, worked quickly without compromising quality, and were very mindful of our budget. We could not be happier with the final result! We highly recommend Jesse and Edward and their crew!"
Pascale B on March 2025
Lanter Landscapes, in business since 1980, is your locally owned and operated family business. Providing design and build services, including sod, irrigation, concrete, retaining walls, interlocking concrete pavers, landscape lighting, and more! Call us today for a free estimate!
"We cannot say enough wonderful things about Jesse and Edward Lanter (father and son) and their incredible team! They transformed our backyard into a beautiful and functional space. They were friendly and professional, worked quickly without compromising quality, and were very mindful of our budget. We could not be happier with the final result! We highly recommend Jesse and Edward and their crew!"
Pascale B on March 2025
1 Degree Construction is a premier design/build construction firm in Los Angeles, providing exceptional remodeling, renovation, and new construction services for residential properties throughout Hollywood and its 10 surrounding areas, such as West Hollywood, Beverly Hills, Santa Monica, Culver City, Studio City, Burbank, Glendale, Silver Lake, Los Feliz, and Sherman Oaks. Our skilled team offers a comprehensive range of services, including: Kitchen remodeling: From minor updates to complete transformations, our team can help you create the kitchen of your dreams. Check out our kitchen remodeling portfolio for inspiration. Bathroom remodeling: Whether you're looking to update your current bathroom or create a luxurious spa-like space, we can bring your vision to life. Explore our bathroom remodeling portfolio for ideas. Home additions: Need more space for your growing family or a dedicated home office? We can help you design and build the perfect addition. View our home additions portfolio for examples. New construction: From concept to completion, we provide expert guidance and exceptional craftsmanship for new construction projects. See our new construction portfolio for inspiration. Discover our glowing reviews on Yelp at yelp.com/biz/1-degree-construction-los-angeles-2, and follow us on Facebook at facebook.com/1degreeconstruction and Instagram at instagram.com/1degreeconstruction/?hl=en for our latest projects and design ideas. Learn more about our licensing, project history, and dedication to quality workmanship on BuildZoom at buildzoom.com/contractor/1-degree-construction, and watch our informative construction process videos and client testimonials on our YouTube channel. Experience the difference with our dedicated and professional team, serving the greater Hollywood area with excellence. Contact us at 310-804-8933 to discuss your project and receive a personalized quote.
"We recently had our outdated kitchen completely remodeled by 1 Degree Construction, and I honestly can’t say enough good things. From the very first consultation, Thai (our project manager) was attentive, asked smart questions, and helped us shape the vision we had in mind—even better than we imagined. The team was quick, efficient, and always professional. What really impressed us was the communication. I always knew what was happening and when, and Thai checked in frequently to make sure we were happy with every stage of the project. The custom cabinets are stunning and the tile backsplash came out better than the Pinterest photo I had saved. Everything was finished in a timely manner and the price was competitive for the high level of quality. Wouldn’t hesitate to recommend them."
Edison O on May 2025
1 Degree Construction is a premier design/build construction firm in Los Angeles, providing exceptional remodeling, renovation, and new construction services for residential properties throughout Hollywood and its 10 surrounding areas, such as West Hollywood, Beverly Hills, Santa Monica, Culver City, Studio City, Burbank, Glendale, Silver Lake, Los Feliz, and Sherman Oaks. Our skilled team offers a comprehensive range of services, including: Kitchen remodeling: From minor updates to complete transformations, our team can help you create the kitchen of your dreams. Check out our kitchen remodeling portfolio for inspiration. Bathroom remodeling: Whether you're looking to update your current bathroom or create a luxurious spa-like space, we can bring your vision to life. Explore our bathroom remodeling portfolio for ideas. Home additions: Need more space for your growing family or a dedicated home office? We can help you design and build the perfect addition. View our home additions portfolio for examples. New construction: From concept to completion, we provide expert guidance and exceptional craftsmanship for new construction projects. See our new construction portfolio for inspiration. Discover our glowing reviews on Yelp at yelp.com/biz/1-degree-construction-los-angeles-2, and follow us on Facebook at facebook.com/1degreeconstruction and Instagram at instagram.com/1degreeconstruction/?hl=en for our latest projects and design ideas. Learn more about our licensing, project history, and dedication to quality workmanship on BuildZoom at buildzoom.com/contractor/1-degree-construction, and watch our informative construction process videos and client testimonials on our YouTube channel. Experience the difference with our dedicated and professional team, serving the greater Hollywood area with excellence. Contact us at 310-804-8933 to discuss your project and receive a personalized quote.
"We recently had our outdated kitchen completely remodeled by 1 Degree Construction, and I honestly can’t say enough good things. From the very first consultation, Thai (our project manager) was attentive, asked smart questions, and helped us shape the vision we had in mind—even better than we imagined. The team was quick, efficient, and always professional. What really impressed us was the communication. I always knew what was happening and when, and Thai checked in frequently to make sure we were happy with every stage of the project. The custom cabinets are stunning and the tile backsplash came out better than the Pinterest photo I had saved. Everything was finished in a timely manner and the price was competitive for the high level of quality. Wouldn’t hesitate to recommend them."
Edison O on May 2025
Moreno landscape and tree service Serving Los Angeles since 2000 providing : , tree trimming , lacing, crown reduction, topping, stump removal, palms trees trim and removal Landscape design, landscape maintenance, fertilizer,for plants, bushes,flowers and trees. Wood fences and gates. Harscape stone slate or brick patios and walkways , driveways, cement walls ect..... SPECIAL PRICE FOR SOD INSTALLATION PER SQUARE FEET
"He clean all the weeds out and he did some tree trimming and trim some bushes. He did an excellent job."
Margeret M on October 2024
Moreno landscape and tree service Serving Los Angeles since 2000 providing : , tree trimming , lacing, crown reduction, topping, stump removal, palms trees trim and removal Landscape design, landscape maintenance, fertilizer,for plants, bushes,flowers and trees. Wood fences and gates. Harscape stone slate or brick patios and walkways , driveways, cement walls ect..... SPECIAL PRICE FOR SOD INSTALLATION PER SQUARE FEET
"He clean all the weeds out and he did some tree trimming and trim some bushes. He did an excellent job."
Margeret M on October 2024
So Cal Builders & Design have been helping the homes throughout California look perfect one nail and brick at a time! With the best prices and highest standard of service, we can deliver the kitchen or bathroom of your dreams on time and on budget! Our staff of trained technicians will build your addition or remodel to your specifications; using only the finest quality materials and the most up-to-date building procedures. We also have in house masonry service as well as perform a number of other services such as plumbing, lighting, painting, patios, and much more. Because we do it all ourselves, we eliminate miscommunication, stress and down time. We don’t use outside contractors or fancy gimmicks to get our customers. We combine new and modern building practices with tried and true hard work to deliver a work of art every time and that is why our customers make us #1. Request Your Free Estimate Voice Star: (888) 284-9122.
"I worked with David from So Cal Builders and Design on a bathroom and bedroom addition to my home. We had been through a few renovation projects before so expectations were low, but I can honestly say this is the BEST experience I have ever had with a contractor. If you need work done hire David and his team! David helped navigate the whole process for us from drawing up the plans, through the entire build, and final inspection. As with any renovation project some issues arose along the way, but David's attitude was always "it's okay, we will take care of it"! He was super transparent with everything going on, and was very responsive when I had questions. He also helped me with some design ideas that I absolutely LOVE! The end result is honestly better than I could have fully envisioned, and I truly believe it wouldn't have been possible without David and his team. Thank you for everything So Cal Builders and Design!"
Katherine J on April 2024
So Cal Builders & Design have been helping the homes throughout California look perfect one nail and brick at a time! With the best prices and highest standard of service, we can deliver the kitchen or bathroom of your dreams on time and on budget! Our staff of trained technicians will build your addition or remodel to your specifications; using only the finest quality materials and the most up-to-date building procedures. We also have in house masonry service as well as perform a number of other services such as plumbing, lighting, painting, patios, and much more. Because we do it all ourselves, we eliminate miscommunication, stress and down time. We don’t use outside contractors or fancy gimmicks to get our customers. We combine new and modern building practices with tried and true hard work to deliver a work of art every time and that is why our customers make us #1. Request Your Free Estimate Voice Star: (888) 284-9122.
"I worked with David from So Cal Builders and Design on a bathroom and bedroom addition to my home. We had been through a few renovation projects before so expectations were low, but I can honestly say this is the BEST experience I have ever had with a contractor. If you need work done hire David and his team! David helped navigate the whole process for us from drawing up the plans, through the entire build, and final inspection. As with any renovation project some issues arose along the way, but David's attitude was always "it's okay, we will take care of it"! He was super transparent with everything going on, and was very responsive when I had questions. He also helped me with some design ideas that I absolutely LOVE! The end result is honestly better than I could have fully envisioned, and I truly believe it wouldn't have been possible without David and his team. Thank you for everything So Cal Builders and Design!"
Katherine J on April 2024
Whether you're upgrading an existing structure or building from the ground up, Peter T. Erdelyi & Associates, Inc has the expertise to oversee your project through completion. We have designed more than 10,000 structures in the Los Angeles area over the past four decades; from apartment buildings to new single family homes to additions and remodels both for residential and commercial clients. Our team of professional engineers, drafters, expeditors and project staff will deliver plans that withstand the test of time.
"The work Erdelyi associates did is great, but communication and timeliness were lacking. I didn’t have a consistent point of contact throughout the project - it just seems my project was handed off from one person to the next with no continuity and I had to proactively reach out for updates."
Stefan W on September 2022
Whether you're upgrading an existing structure or building from the ground up, Peter T. Erdelyi & Associates, Inc has the expertise to oversee your project through completion. We have designed more than 10,000 structures in the Los Angeles area over the past four decades; from apartment buildings to new single family homes to additions and remodels both for residential and commercial clients. Our team of professional engineers, drafters, expeditors and project staff will deliver plans that withstand the test of time.
"The work Erdelyi associates did is great, but communication and timeliness were lacking. I didn’t have a consistent point of contact throughout the project - it just seems my project was handed off from one person to the next with no continuity and I had to proactively reach out for updates."
Stefan W on September 2022
Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.
"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."
Robert N on September 2024
Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.
"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."
Robert N on September 2024
You should bring in a structural engineer any time you’re adding or removing something that carries weight—think new construction, a major remodel, or moving a load‑bearing wall. Call one during a real‑estate deal, after storm damage, or when you spot cracks in the foundation, beams, or chimney. An engineer’s report confirms that the structure is sound and tells your contractor exactly what fixes—or reinforcements—are needed to keep the home safe long‑term.
Who you hire depends on the task. Hire an architect to shape the look and layout of your home. Call a structural engineer to verify that load‑bearing elements—walls, beams, foundation—can handle the plan or to diagnose structural issues. Bring in a home inspector for a broad health check during a sale, after a storm, or for an appraisal. Matching the pro to the job keeps costs down and problems in check.
During the visit, the engineer checks your foundation, framing, walls, roof, and insulation, then compares what they see to any existing plans. If the structure matches the specs, you get the all‑clear; if not, the engineer outlines the fixes. Their sign‑off is what lets the next phase of work move forward, so expect clear notes on what’s solid and what needs attention.
Civil engineering is the broad field that covers roads, bridges, and other infrastructure. Structural engineers focus on the loads and forces inside a building or bridge—foundations, beams, and walls—while mechanical engineers design and keep power systems running, from elevators and turbines to HVAC equipment. In short, civil handles the big picture, structural makes sure it stands up, and mechanical keeps everything moving.
Most structural engineers offer free quotes. They’ll look at your home’s size and the scope of work to decide whether a flat fee or hourly rate makes sense. Simple inspections are usually priced by square footage; bigger, more complex jobs require a site visit and a detailed written estimate. Getting that number up front lets you nail down a budget before any drawings or inspections begin.
The engineer reviews every load‑bearing part of the home—floors, foundation, walls, roof, and major beams—along with insulation and the soil around the structure. They also factor in local weather risks and nearby water sources. The goal is to confirm that the materials and construction can handle day‑to‑day loads and extreme events alike, and to flag any spots that need reinforcement.