Licensed Home Addition Contractor in Redlands & the Inland Empire
Call (909) 682-6053
or use our contact form to get started.
When your home needs more space, working with a licensed home addition contractor in Redlands is the most practical way to expand without moving.
Straight Edge Builders provides home expansion services for projects of all sizes across the Inland Empire, from single-room extensions to full second-story builds. We are fully licensed (B License #1075936), we use an in-house crew for all structural work, and we are on-site every working day your project is active.
If you are searching for a reliable home addition contractor Redlands CA homeowners can count on for complex builds, we would like to hear about your project.
Build More Space Without Moving
Most homeowners consider an addition when the existing layout stops working. A growing family runs out of bedrooms, a parent needs their own space, or remote work requires a real office. Moving is expensive and disruptive, particularly when you are already in a neighborhood that suits you. A well-built addition adds functional square footage, increases the resale value of your property, and keeps your household in place. When the work is done right, the new space looks and functions like it was always part of the original structure.
Types of Home Additions We Build
We design and build custom additions for homeowners across Redlands, Yucaipa, Highland, Beaumont, and surrounding Inland Empire communities. Below are the most common addition types we handle.
Room Additions & Home Extensions
Room additions are side or rear extensions that add a new bedroom, expand a dining area, or create a sunroom off the back of the house. This type of project requires solid foundation work, framing that ties into the existing structure, and careful roofline integration to avoid water intrusion points down the line. Our room addition contractors plan the structural connection carefully so the finished space reads as part of the original building, not something added on. Most homeowners working with room addition contractors find that the permitting phase takes as long as construction itself. We manage both, so you are not left chasing approvals on your own.
Second-Story Additions
A second-story addition is one of the most technically demanding projects in residential construction. We start with a foundation assessment to confirm the existing structure can carry the added load. If reinforcement is required, that work is scoped and completed before framing begins. Our licensed in-house team manages the structural engineering coordination, framing, and roofline work from start to finish. A second-story addition built correctly doubles your usable footprint on the same lot. Built incorrectly, it creates structural problems that are costly to fix and difficult to insure. Having a licensed general contractor with direct structural experience is not optional on this type of project.
In-Law Suites & Multi-Generational Additions
An in-law suite is a semi-independent living space with a private entrance, kitchenette, full bathroom, and bedroom. These additions work well for aging parents, adult children, or extended family members who need proximity but also privacy. We build them to be fully functional, code-compliant, and finished to the same standard as the rest of the home. The connection between the suite and the main structure is handled carefully so the addition does not compromise the thermal or acoustic performance of either space. If a fully detached unit fits your situation better, we also offer ADU builder services for accessory dwelling units on your property.
Home Offices, Sunrooms & Specialty Spaces
A dedicated office addition includes proper electrical for equipment, soundproofing, and independent HVAC so you can work without affecting the rest of the home. Purpose-built office additions are more functional and quieter than converted bedrooms, and they tend to hold their value better when the home is eventually sold. Sunrooms and three-season rooms are popular for homeowners who want more natural light or an indoor-outdoor transition space without the maintenance of a full outdoor structure. We design all specialty additions to match the exterior materials and architectural style of the existing home so the project looks considered, not bolted on.
Ready to Add Space to Your Home?
Permits, Structural Work & Inspections
In California, all structural home additions require building permits. Depending on the project, you will need separate permits for structural, electrical, plumbing, and mechanical work. Permit timelines vary by municipality and the local building department's workload, and in the Inland Empire they can range from a few weeks to a few months for more complex projects.
Straight Edge Builders manages the entire permit process on your behalf. We prepare and submit permit applications, coordinate with structural engineers to produce certified plans required for foundation and framing work, and schedule all required city inspections at each phase of construction. You do not need to track down forms or navigate the building department yourself.
On-site, we handle foundation excavation and pouring, framing inspections, rough-in inspections for electrical and plumbing, insulation checks, and the final occupancy inspection. We do not move to the next phase of construction until the prior phase has passed.
Our Home Addition Process
- Free consultation and site assessment. We visit the property, review your goals, and evaluate the structural and site conditions that will affect scope and budget.
- Design and engineering coordination. We work with architects and structural engineers to produce the drawings and certified plans required before permits can be issued.
- Permit application and approval. We submit all required applications and follow up with the building department to keep things moving.
- Foundation and framing. Groundwork begins once permits are approved. Foundation work is inspected before framing starts.
- Utility connections and systems rough-in. Electrical, plumbing, and HVAC are roughed in and inspected before walls are closed.
- Insulation, drywall, and finishes. We complete the interior to match or complement your existing home.
- Final inspection and walkthrough. We schedule the final city inspection and walk the completed space with you before the project is closed.
We are on-site every working day your project is active. Job sites are kept clean and the existing areas of your home are protected throughout construction.
Why Redlands Homeowners Choose Straight Edge Builders
Choosing the right house addition contractor comes down to three things: structural quality, reliable scheduling, and clear communication throughout the build. We built our reputation in the Inland Empire by delivering on all three, consistently.
Our in-house crew handles all critical framing and structural work. We do not hand off the most important phases of your project to rotating subcontractors. That means tighter quality control, faster decisions when adjustments are needed, and one accountable team managing your build from day one through final inspection.
We back our work with a daily progress guarantee: someone from our team is on-site every working day your project is in progress. Large builds do not sit idle while we juggle other jobs. We have earned many 5-star reviews from homeowners across Redlands, Yucaipa, Highland, and Beaumont by keeping that promise on every project. We are a local operation, not a national franchise, and your project matters to us because our reputation in this community depends on it. Learn more about our
remodeling in Redlands services, or find location-specific details on our
home addition services in Redlands page.
What Our Customers Say
Evan Liewer, 5-Star Google Review
Straight Edge Builders have been fantastic for us. We have used them for multiple jobs and will continue to use them. My biggest issue with contractors is them showing up when they should and finishing to budget. For all of our projects (which are complex and long) they have hit deadlines and stayed in budget. Their integrity is high and the craftsmanship is excellent. We will continue to use them for our projects.
Valerie Uruena, 5-Star Google Review
Mitch / Dustin and their team had great communication! We used them to add an additional bedroom to our room, They walked me through the whole process step by step, the team was here everyday on time ready to work! No messing around or no excuses! I highly recommend their company and will be using them for future projects!
Home Addition Cost in the Inland Empire
Home addition cost Redlands homeowners encounter depends on the type and size of the addition, finish level, permit and engineering fees, foundation requirements, and utility tie-ins. A room addition carries a different cost structure than a full second-story build, and the gap between a basic room extension and a load-bearing second-story project can be substantial.
We do not publish fixed price ranges because they are rarely accurate without knowing your specific property. Every home addition contractor Redlands CA will quote differently based on scope, crew structure, and approach to permitting. What we offer is a free consultation where we look at your site and give you a straight, honest cost picture before any commitment is made.
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
Do I need permits for a home addition in California?
Yes. All structural home additions in California require building permits, including separate permits for electrical, plumbing, and mechanical work in most cases. Straight Edge Builders manages every step of the permit process on your behalf, from application through final inspection. If you are planning a project specifically in Redlands, visit our home addition services in Redlands page for location-specific details.
How long does a room addition take?
Timeline depends on the scope of the project and how long permits take in your municipality. A straightforward room addition can take 6 to 12 weeks once construction starts, not including the permitting phase. Projects with significant structural work or foundation requirements will take longer. We provide a project-specific timeline during the consultation once we understand the full scope.
Can you add a second story to my home?
Yes. We start every upper-level project with a foundation assessment to confirm the existing structure can carry the added load. Our licensed in-house crew manages structural engineering coordination, framing, and roofline integration. This type of project requires a licensed general contractor with structural expertise, which is what we bring to every build.
What is the average cost of a home addition in the Inland Empire?
Costs vary widely based on project type, square footage, structural complexity, finish selections, and permit fees. We do not publish estimates without reviewing the specific property. If you are considering a detached unit rather than an attached addition, our ADU builder services page covers that option. For attached additions, a free consultation is the most useful first step.
What types of home additions do you offer?
Request a Home Addition EstimateWe build room additions, second-story additions, in-law suites, home office additions, sunrooms, kitchen expansions, and multi-generational living spaces. Each project is designed to integrate with the existing structure in terms of materials, roofline, and interior flow.
Do you serve areas outside of Redlands?
Yes. We serve homeowners throughout the Inland Empire, including Yucaipa, Highland, Beaumont, Loma Linda, and surrounding communities. Call (909) 682-6053 to confirm coverage for your area.
How do I start planning a home addition with Straight Edge Builders?
Call (909) 682-6053 or use our contact form to schedule a free consultation. We visit the property, review your goals, and walk through what the project would involve before any commitment is made.
Get a Free Estimate on Your Home Addition Project
Ready to move forward? Contact us for a free consultation, and we will get back to you promptly.