Home Addition Contractor in Highland - Design, Permits and Build Under One Contract

Fast, Reliable Home Addition Contractor Across Highland

Home additions in Highland run anywhere from $95,000 for a simple bump-out to $320,000+ for a full second-story build, and the single biggest variable is what’s hiding inside your existing walls and what zone your parcel sits in. We’ve worked the Highland foothills long enough to know that a 1970s ranch off Greenspot Road and a 1990s tract home near East Highlands Ranch will hand you completely different scope realities once framing starts. Our crews coordinate from the Inland Empire office and serve Highland directly, so you’ll get a contractor who knows the local permit desk, the FHSZ maps, and the housing stock. If you’re pricing an addition, call (254) 602-5618 and we’ll walk the property first, before any number gets written.

Call (254) 602-5618

What a Highland Addition Really Costs

A detached room addition in Highland typically lands between $115,000 and $240,000 depending on square footage, and that’s the honest range before we open a single wall. Bathroom additions run $45,000 to $95,000. Garage additions start around $70,000 and climb once Chapter 7A materials enter the conversation on foothill parcels. Second-story work, because you’re lifting the roof and re-engineering load paths, runs $200,000 to $320,000 on most Highland lots.

What moves those numbers more than anything is the age of your existing home. Highland’s core is 1960s through 1980s ranch construction, and those houses routinely carry 100-amp panels, galvanized or early-copper plumbing, and framing that hasn’t seen daylight since the Carter administration. We price those realities into the quote up front. If you’d rather get a real number than a vague ballpark, call (254) 602-5618 and schedule a property walk.

Why Lodgewick ADU Builders Is Highland’s Preferred Home Addition Contractor Company

Lodgewick ADU Builders is the ADU and home addition company of the Kingswell family, and we operate under a rule that most Highland homeowners tell us they’ve never seen before: written price first, real arrival window, clean job site, and a written guarantee on every project before we swing a hammer. Our Home Addition Contractor team has walked enough Highland parcels to know that the zone map matters as much as the floor plan. Pull the CAL FIRE FHSZ lookup on a street north of Base Line and you might find your project just got $15,000 to $25,000 more expensive. Skip that lookup and you’ll find out at permit intake, after the plans are already drawn. That’s the kind of thing that separates a Highland specialist from a generic contractor working off a template.

Every project carries the 365-Day Done Right Promise. If the work isn’t right, we come back and make it right. That’s in writing, not a handshake. Russ Delmar, who leads our team, signs off on every Highland scope before it reaches your kitchen table. A live person answers our phones 24 hours a day, seven days a week, not a voicemail tree. When you call about your guarantee or your build, you’ll get a human being who knows your project.

Garage Addition Contractors in Highland

Garage Addition Contractors in Highland have to plan around two things most out-of-town builders miss: the CAL FIRE Very High Fire Hazard Severity Zones that run up the northern foothills, and the older electrical infrastructure inside the average 1960s-80s Highland ranch home. A garage addition here means tying new living space onto an existing structure that may predate modern panel sizing by four decades. It’s not just framing and drywall; it’s load path verification, panel load calculation, and often a Chapter 7A materials review before the permit gets issued. Garage additions in Highland typically run $70,000 to $160,000, with the upper end reflecting fire-rated cladding and ember-resistant vent upgrades on parcels mapped VHFHSZ.

What Actually Happens When We Open the Wall

On a 1972 ranch off Panorama Drive north of Base Line, our crew opened a wall for a bathroom-and-garage addition and found cloth-wrapped wiring, a 100-amp panel already at capacity, and a shower pan that had been leaking into the framing for years. We pulled the FHSZ map before demo and confirmed the parcel was in a Very High zone, so the revised scope included a 200-amp panel, a partial re-pipe, sistered joists, and Chapter 7A ember-resistant vents and Class A roofing on the new roof plane. Every one of those items was priced and signed off before we touched the framing. The homeowner never saw a surprise change order.

Allowing for What’s Behind the Drywall

We write allowances into every Highland contract for exactly these discoveries. Cloth-wrapped wiring behind a 1970s garage wall is not a rare find here. When we open the envelope, code triggers kick in, and we price those upgrades as line items before demo starts, not as change orders after the fact. That’s The Kingswell Way: say the price before the work, leave the place cleaner than found, and put the guarantee in writing.

Bathroom Addition Contractor in Highland

Bathroom Addition Contractor work in Highland frequently starts with a failed shower pan or a 1.6-gallon fixture that has been leaking into the subfloor for a decade, especially in the ranch homes that dominate streets east of Webster and south of the 210. A bathroom addition here typically runs $45,000 to $95,000 depending on whether we’re bumping out an exterior wall or converting existing closet and hallway space. What drives the cost higher isn’t tile selection. It’s the condition of the plumbing and framing we find once the walls are open, plus any Chapter 7A exterior upgrades if the addition touches an outside wall on a foothill parcel.

Why We Inspect Before We Quote

We won’t hand you a number over the phone for a bathroom addition in Highland. The reason is simple: two identical-looking 1970s ranch homes on the same street can have completely different realities behind the drywall. One might have copper supply lines that are fine, the other might have galvanized pipes that are rusting from the inside out. One might have a shower pan that never leaked, the other might have rot spreading into the joists. A property walk lets us see the panel, the crawlspace, and the existing plumbing before we commit to a figure.

Bathroom Work That Holds Up to Highland’s Climate

Highland’s foothill elevation gives it a wider temperature swing than the valley floor, including hard freezes that can stress exposed utility connections. We run bathroom supply lines and vents with that freeze cycle in mind, not the way you’d plumb a Redlands house down in the flatlands. The same goes for ventilation: a bathroom addition that isn’t vented properly will grow mold behind the drywall in two years, and on an older Highland ranch with original wood framing, that’s a warranty claim waiting to happen. We’d rather build it right the first time and back it with the 365-Day Done Right Promise.

Trusted Brands We Service in Highland

We work directly with established ADU and addition materials suppliers including Cover, Dvele, and Mighty Buildings, and we know which of their systems make sense on a Highland lot and which don’t. A prefab panel system that works beautifully in a flat Redlands yard can hit real wind-load and fire-zone complications up against the San Bernardino Mountain foothills. Because we coordinate from the Inland Empire office and dispatch locally, we can get the right materials staged for your Highland project without long waits at the supply desk. Matching the right system to your parcel’s FHSZ status is part of the quote, not an afterthought. Russ Delmar’s team has hands-on time with these systems and can tell you honestly which one fits your budget and timeline.

Common Home Addition Contractor Problems We See in Highland Homes

• Skipping the CAL FIRE FHSZ map lookup before design. We’ve seen too many Highland homeowners get plans drawn, submit for permit, and only then learn their parcel is mapped Very High Fire Hazard Severity Zone. The redesign for Chapter 7A materials adds $15,000 to $25,000 and weeks of delay. We pull the map before we draw a single line.
• Fixed-price contracts with no allowance for 1960s-80s housing realities. Highland’s ranch stock carries 100-amp panels, galvanized or early-copper plumbing, and failed shower-pan waterproofing that only surfaces once walls are open. A fixed-price contract that doesn’t allow for those discoveries is a contract built to break. We write allowances into ours, in writing, before demo.
• Treating opened-wall code upgrades as optional extras. Once we open a wall in a Highland home, the inspector will require current code on framing, wiring, ventilation, and egress. Contractors who call these “extras” and price them as change orders are either naive or dishonest. We price them in writing and get your approval before covering anything back up.
• Underestimating freeze-and-wind stress on exposed utility runs. Highland’s periodic hard freezes and Santa Ana wind events are harder on exterior connections than a lot of flat-valley builders expect. Exposed mini-split lines, exterior vents, and rooftop equipment need more careful detailing here than they do four miles south in Loma Linda. We spec for it.

Pricing for Home Addition Contractor in Highland, CA

We Also Serve Cities Near Highland

We run crews from the Inland Empire office into Highland regularly, and the same team covers San Bernardino, Loma Linda, Redlands, and Mentone. If you’re east of the 210 or up toward the foothills, we can likely reach you as quickly as we would a street off Greenspot Road. The FHSZ and older-ranch housing realities we described for Highland apply to a lot of the surrounding foothill streets too.

FAQs About Home Addition Contractor in Highland