A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Antelope
Adding square footage to an Antelope home usually costs between $85,000 and $220,000 depending on scope, and the smartest move before you commit is getting a written price that won’t shift once walls come down. We’re Benson ADU Sacramento, and we work on Antelope homes every week, from the 1980s stucco houses near Tetotom Park to the early-2000s subdivisions off North Loop Boulevard. Troy Eastman leads our team, and we’ve seen what hides inside these houses: undersized framing, corroded wiring, and slab foundations that need a structural engineer’s sign-off before a second story goes up. If you’re planning a sunroom, second story, room addition, or bump-out in Antelope, call (279) 254-1808 for a free estimate and a written price before any work starts.
Why Benson ADU Sacramento Is Antelope’s Preferred Home Addition Contractor Company
Antelope homeowners tell us the same thing: they want a contractor who shows up when promised and puts the price in writing. That’s exactly how we operate. Every project starts with a walkthrough of your home’s existing structure, followed by a line-item written price. No verbal ballpark that drifts. No surprise change order handed to you at the door. Troy Eastman insists on that standard for every job we run in Antelope, and it’s why our customers keep us on speed dial when their family grows or a parent moves in.
The homes here were largely built between 1985 and 2005, and that means we know what’s behind the drywall before we open it. Aluminum wiring in the 1980s builds. Slab-on-grade foundations that need a load calculation before you stack a second story. Tile roofs that complicate structural tie-ins. Our crews work on Antelope projects from the first inspection to the final permit sign-off, and we coordinate scheduling and dispatch through our Sacramento office while our local crews handle everything on site.
You’ll also get background-checked, uniformed technicians on your property, live phone support around the clock, and a 365-Day Done Right Promise stamped in writing. If something isn’t right within a full year, we make it right, and every project includes a free second visit if a covered repair fails. That’s the standard we hold, no matter the size of the addition.
Sunroom Addition in Antelope
A sunroom addition in Antelope typically runs $45,000 to $95,000, and it’s the most popular way to add year-round living space without the full cost of a second story. Antelope summers push past 100°F regularly, so the build quality matters: low-E glass, insulated panels, and proper ventilation keep the room usable in July instead of turning it into a greenhouse. We also see hard water from local groundwater wells causing scale buildup in new plumbing, so we spec fixtures accordingly. The permit and foundation work sit under that same written pricing structure, which means you’ll know the exact cost before we order a single panel.
Foundation and Site Preparation
Most Antelope sunrooms go on a concrete slab tied to the existing foundation, and on lots with mature oaks or redwoods, we map root zones before staking anything. Sacramento County tree ordinances protect those trees, so siting the slab wrong can trigger costly permits or stop-work orders. We check for that on day one.
Climate-Focused Glass and Ventilation
Triple-digit summers and cool, sometimes frosty winters mean your sunroom’s glazing package isn’t a place to cut corners. We recommend insulated, low-E glass and shade screens on west-facing walls, which keep the room comfortable across Antelope’s full temperature swing without doubling your AC load.
Second Story Addition Contractor in Antelope
A second story addition in Antelope generally costs $120,000 to $220,000 depending on square footage, roofline complexity, and what the existing slab can carry. Before we touch a wall, a structural engineer evaluates the slab-on-grade foundation that most Antelope homes sit on. Adding a second story without that step leads to cracks, sagging, and a failed inspection, and we won’t put your family in that position. We also factor in the tile roofs common across Antelope; they require careful tie-ins and often partial removal that’s priced into the quote from the start.
Foundation Verification Before Framing
Slab foundations from the 1980s and 1990s weren’t always engineered for vertical loads. We pull core samples and run load calculations before any framing begins. If the slab needs reinforcement, that’s a written line item, not a surprise discovered mid-project.
Roof Integration and Height Limits
Antelope’s single-story ranches often have tile roofs that must be partially disassembled to tie in new second-story framing. We also verify the ridge height against Sacramento County’s residential height limits early, because that affects both design and budget long before you commit.
Trusted Brands We Service in Antelope
Where site-built framing makes sense, we build it. But many Antelope homeowners prefer prefab panels for speed and precision, and we’re authorized to build with Dvele, Mighty Buildings, and Boxabl systems. These aren’t off-the-shelf kits; they’re engineered panels and modules that arrive pre-inspected and go up in days rather than months. For Antelope’s wider-than-deep lots, where a backyard addition has to thread around a pool or protected oak, prefab panels often mean a shorter construction window and less disruption to your yard. We stock common connection hardware and flashing locally for Antelope jobs, so you’re not waiting on a part shipped from out of state. You can research every brand we offer before you commit, and we’ll give you the written price either way.
Common Home Addition Contractor Problems We See in Antelope Homes
- Aluminum wiring in 1980s builds: Opening a wall for a room addition often reveals aluminum branch circuits that need replacement, pigtailing, or an AFCI panel upgrade before the inspector will sign off. We quote this as an allowance, not a surprise.
- Slab foundations not rated for vertical loads: Many Antelope homes sit on slabs poured for a single story. A second story addition without a structural review leads to cracks and a red-tagged permit.
- Popcorn ceilings and asbestos risk: Homes built before the early 1980s in Antelope may have asbestos in texture coatings or drywall compound. Demo without testing can mean forced abatement and stop-work orders.
- Tree ordinance triggers on wide lots: Mature oaks and redwoods are protected by Sacramento County, and building an addition too close to a root zone can halt the project and require costly arborist reports and permits.
Pricing for Home Addition Contractor in Antelope, CA
Here’s what Antelope homeowners should expect for common scopes: a room addition runs $65,000 to $140,000. A sunroom addition lands between $45,000 and $95,000. A second story addition runs $120,000 to $220,000. Bump-outs are smaller, usually $35,000 to $75,000. What moves the number? Foundation work, roofline changes, electrical panel upgrades, and any tree-mitigation requirements. Every Benson ADU Sacramento estimate includes those as line items, written up front. Call (279) 254-1808 to schedule your free estimate and get a written price before anything gets opened up.
We Also Serve Cities Near Antelope
Beyond Antelope, our crews regularly work in Elverta, Citrus Heights, Fair Oaks, and Granite Bay. If you’re in one of those communities and planning a Home Addition Contractor project, we bring the same written pricing and local building knowledge. Whether you’re in Antelope proper or just across the county line, call (279) 254-1808 to talk through your project.
Serving Antelope, CA - Our Local Coverage Area
We’re based in the Antelope area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Home Addition Contractor in Antelope
Expect aluminum branch wiring, undersized panels, and a lack of AFCI protection in homes built between roughly 1988 and 1999. Once a wall is opened for an addition, the inspector will require the exposed circuits to meet current code, which usually means panel upgrades and new grounding. We write an electrical allowance into every Antelope estimate so this doesn’t blindside you. Call (279) 254-1808 for a free walkthrough.
Yes. Tile roofs are heavy and require careful structural tie-ins, partial removal, and sometimes new framing at the intersection of old and new roofing. It’s not a reason to avoid a second story; it’s just a line item that must appear in the written quote. We’ve done this on dozens of Antelope homes and price it accurately up front. Call (279) 254-1808 to get your number.
Antelope homes on groundwater wells have hard water that accelerates scale buildup in tankless water heaters and new fixtures. We address it by specifying scale-resistant fixtures, accessible shutoffs, and in some cases a water softener loop in the addition. It’s a small design decision now that saves service calls later. Call (279) 254-1808 and we’ll look at your water report together.
Only if the foundation and roofline sit outside the protected root zone as defined by Sacramento County’s tree ordinance. Mature oaks and redwoods in Antelope require an arborist report before permits are issued, and encroaching on the root zone can trigger costly root-pruning permits or a stop-work order. We map root zones before we ever stake a foundation. Call (279) 254-1808 for a site review.
We stop, photograph it, document the scope, and hand you a written change order with the exact cost before we touch the rotted material. No surprises added to your bill at the end. On a 1989 stucco home off Walerga Road, we found undersized 2×4 framing and corroded aluminum wiring when we opened a load-bearing wall. We re-framed to current shear-wall standards, upgraded the panel to AFCI breakers, and wrote the change order before doing the work. Final inspection passed without a correction notice. That’s our standard on every Antelope job. Call (279) 254-1808 for your free estimate.
Ready to start planning? Call Benson ADU Sacramento at (279) 254-1808 and we’ll schedule a walkthrough, map your site, and hand you a written price before any work begins.
Written by Troy Eastman, Owner at Benson ADU Sacramento, serving Antelope and surrounding communities.
