Home Additions Contractor You Can Count On for Seamless Home Expansion
When your family needs more space, a home addition is a smart way to add value to your property. It also helps you create a living space that fits your needs, all without the stress of moving.
Building a home addition or room extension needs a licensed contractor. They should have strong skills in structure and project management. You also need a team that can connect the new space well with your current home.
Straight Edge Builders is a trusted contractor for home additions and remodeling projects in the Inland Empire. We are known for reliable scheduling, clear communication, and high-quality work on complex projects.
We are fully licensed (B License #1075936). We are dedicated to providing a smooth and professional process from design to completion.
Build the Space You Need With a Trusted Home Additions Contractor
We believe a successful home addition should look and feel like it was always part of the original structure.
Expanding your home can solve many problems. You can build up with a second story or out with an extension.
This helps with a growing family, creating home offices, or getting the open-concept living area you want!
Our skilled construction team takes care of everything. We handle structural engineering, foundation work, utility connections, and roof-line designs.
Homeowners trust us because we solve common problems with big construction projects. We ensure daily progress and keep a clean, respectful work site during the entire build.
Our commitment is to give you more than just square footage—we give you a functional, beautiful new
living space.
Types of Home Additions and Expansions We Offer
We offer custom design and construction for many types of house additions. Each addition is made to enhance light, flow, and value for your property.
- Room Additions & Home Extensions:
You can build out from the side or back of your home. This will help you add a new bedroom, a bigger dining area, or a sunroom.
- Primary Bedroom Suites:
We design and build luxury master bedrooms. These include walk-in closets, private bathrooms, and custom lighting.
- Second-Story Additions:
Adding a second floor or expanding one needs special skills. Our licensed team handles everything, from checking the foundation to putting on the roof.
- Home Office Additions: Dedicated, secluded spaces designed specifically for remote work, including soundproofing and customized lighting.
- Living Room/Family Room Expansions:
Making the central gathering areas larger helps improve open-concept flow. This also provides better space for entertaining.
- Kitchen Expansions & Overhauls: Structural remodels that allow for larger custom kitchens, new islands, and high-end appliance integrations.
- In-Law Suites & Multi-Generational Additions:
These are semi-independent living spaces. They often need kitchenettes and private baths. These spaces stay connected to the main house.
- Structural Upgrades for Expansion: Including necessary foundation upgrades, load-bearing wall removals, and engineered support beam installation required for vertical or large horizontal expansions.
If your goal is to increase property income or create separate living spaces, we are expert ADU builders.
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Building an addition involves more planning than a simple remodel. Our process is designed to help you through each complex stage. We make sure the final result matches your vision.
- Consultation & Feasibility Review: We meet to discuss your goals and review your property boundaries. We also assess the structural feasibility of your planned addition (including zoning and setback potential).
- Architectural Plans & Structural Requirements: We work with trusted structural engineers and architects to create detailed, custom plans. We integrate the new construction with your home's existing systems and structure.
- Permit Management & Approvals:
We take care of the whole process of applying for city permits and approvals. This saves you time and reduces stress.
- Construction with Daily On-Time Progress: Once permits are approved, our in-house team begins construction. We come to work every day. We ensure daily progress and focus on keeping the site clean and safe.
- Final Walkthrough, Warranty & Integration: We conclude with a comprehensive walkthrough to ensure your total satisfaction. Our additions come with a strong workmanship warranty, guaranteeing seamless integration and long-term structural integrity.
Permit Requirements & Inspection Management Expertise
Home additions are subject to rigorous safety and structural checks. We handle all compliance issues. This ensures your project meets local codes and standards. This is especially important in the Inland Empire's diverse building areas.
- City Permit Requirements: Handling all primary building permits for structural, mechanical, plumbing, and electrical work.
- Structural Engineering: Obtaining certified engineering plans for new foundations, framing, and load-bearing elements (essential for second-story builds).
- Foundation Work: Managing excavation, inspection, and pouring of new, structurally sound foundations that anchor your expansion.
- Utility Tie-Ins: Safely integrating new electrical circuits, plumbing lines, and HVAC ducts with your existing home systems.
- Inspection Stages: Scheduling and flawlessly passing multiple city inspections throughout the process, including foundation, framing, insulation, electrical, plumbing, and final occupancy inspections.
Why Homeowners Choose Straight Edge Builders for Complex Additions
Choosing the right contractor is crucial when undertaking a complex project like a home addition. Our clients value our reliability, accountability, and the superior quality of our structural work.
- Licensed General Contractor:
We are fully licensed and insured. We hold B License #1075936, which is required for structural work.
- In-House Team:
We depend on our skilled in-house team for important framing and structural work. This reduces our need for subcontractors. As a result, we have better quality control and faster timelines.
- Daily Progress Guarantee: We promise to be on-site every day. This way, your large project will move forward steadily and predictably.
- On-Time, On-Budget Delivery: Our detailed planning and execution prevent costly delays and unexpected financial surprises.
- Proven Reliability:
We have many 5-star reviews from homeowners in the Inland Empire. They trust us with their biggest investments.
- Cleanliness & Respect: We strictly manage job site debris and protect the existing areas of your home throughout construction.
Related Services to Support Your Home Expansion
Many large projects involve simultaneous updates to the existing structure. We offer seamless integration of the following services:
- Kitchen Remodeling: We can expand your kitchen layout and remodel the entire space with new cabinets, counters, and finishes.
- Bathroom Remodeling: If you are adding a new primary suite, we create custom luxury bathrooms. These include custom tile, showers, and modern fixtures.
- Full Home Remodeling: If you want your entire home to match the quality and style of your new addition, we can help. We offer full interior renovations at the same time.
- ADU Builder: If you want a separate unit in your backyard or to convert your garage, we can help. Our ADU services will help you make better use of your property.

Frequently Asked Questions
What types of home additions do you offer?
We offer a full range of expansions, such as:
- horizontal room additions
- second-story additions
- in-law suites
- primary bedroom suites
- kitchen or family room extensions
How do I start planning an addition with Straight Edge Builders?
The process starts with a consultation and feasibility review. We assess your property, discuss your goals, and begin forming the preliminary scope required for architectural design.
Are permits required for home additions?
Yes. Home additions require permits for structural changes, framing, foundation, electrical, and plumbing. We manage the entire permitting and inspection process for you.
Can you assist with ADU (Accessory Dwelling Unit) construction?
Absolutely. We specialize in detached ADUs, garage conversions, and junior ADUs. Please see our dedicated ADU Builder page for more details.
What is the timeline for completing a home addition?
Request a Home Addition EstimateThe timeline can change a lot based on the project's complexity. For example, a room addition takes less time than a second story. Permitting time usually takes three to six months after construction starts. We provide a detailed project schedule in your estimate.
