Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Remodeling Across Los Serranos
A full home remodel in Los Serranos typically runs $45,000 – $130,000 for an addition and $14,000 – $45,000 for a kitchen, but the number that matters on your lot is the one we scope before you sign anything. Los Serranos isn’t Chino Hills. It’s unincorporated county land, which means your remodel goes through San Bernardino County Fire’s high-fire-severity WUI plan check and Chino Valley Unified facility-fee coordination instead of a city building department. That double layer changes what gets built, what it costs, and who has to sign off. We’ve done this enough times on the large lots and ranch homes off Butterfield Ranch Road to know exactly where the county will push back and where it won’t. Call (833) 467-7020 for a free estimate that accounts for all of it.
Why Alder Contractors Is Los Serranos’s Preferred Home Remodeling Company
We work on the homes Los Serranos actually has: older ranch-style and equestrian properties near Los Serranos Country Club, newer master-planned tracts, and everything in between. That mix means a crew has to be comfortable moving between wood-frame tract methods and custom block-and-stucco or barn-and-outbuilding work on the same street. Our crews are. Nelson Ibarra has run Alder Contractors with one rule: scope the job before you price it. On acreage lots with septic and well systems, that rule saves homeowners from redesigns and variance fights mid-build. We quote what the county will actually approve, not what a flat-lot template says.
When you call us for a remodel in the 91709 zip code, we’re not a sales team reading from a script. We’re a licensed general contractor who has already dealt with the County Fire plan check comments that come back on nearly every addition in the Los Serranos hills. Non-combustible siding, ember-resistant vents, defensible-space setbacks. We build those into the number up front. That’s why homeowners here keep our name in the drawer for the next project.
Styles & brands we work with







Whole House Remodel in Los Serranos
A Whole House Remodel on a Los Serranos property means more than gutting a kitchen and swapping finishes. It usually means reworking an older ranch home’s entire footprint, often with an addition, while the county reviews the fire-safety scope separately from the structural scope. You’re replacing roofing, siding, windows, doors, plumbing, electrical, and interior finishes, and you’re doing it on a lot where septic and well setbacks may limit where new square footage can go. That’s the part a city remodeler misses. We don’t.
Septic, Well, and Setback Scope
On acreage lots along Butterfield Ranch Road and around the country club, the county checks where your septic leach field sits before it approves any new foundation. Push a bath addition too close and you’re redesigning. We pull the septic records and mark the setbacks before we quote, not after. For a whole house remodel that includes moving or adding bathrooms, that pre-check alone can save $5,000 – $15,000 in redesign and delay.
Fire-Resistant Envelope Upgrades
County Fire’s WUI review on whole home remodels in this foothill corridor frequently comes back requiring non-combustible siding and ember-resistant vents on any new or re-roofed section. We plan for brands like James Hardie siding and GAF or CertainTeed roofing from the first drawing. You still get the look you want, but the material spec matches what the county will stamp, so your punch list clears on the first inspection.
Luxury Home Remodeling in Los Serranos
Luxury Home Remodeling in Los Serranos is different from doing it down in Chino. You’re working with larger floorplans, wider lots, and usually an indoor-outdoor expectation that demands seamless transitions from kitchen to covered patio to hardscape. The budget runs higher because the materials run higher: Cambria or Caesarstone countertops, Kohler or Grohe fixtures, Techo-Bloc or Unilock pavers for the outdoor spaces. But the real cost driver on your property is still the site itself: grades that drop toward a wash, Santa Ana wind exposure on the hillside, and county fire requirements that apply to the whole envelope, not just the house.
Outdoor Living and Hardscape Tie-Ins
Luxury remodels here almost always spill outside. Paver patios, outdoor kitchens, pergolas, and driveway work get scoped in the same contract as the interior so the grading and drainage make sense as one system. We carry Belgard, Techo-Bloc, and Unilock pavers, and we plan the patio elevation against the house slab before we pour anything. On a sloped Los Serranos lot, that coordination is the difference between a patio that drains and one that pushes water back at the foundation.
Single-Contract Accountability
When you spend $60,000, $100,000, or more on a luxury remodel, the last thing you want is four vendors pointing at each other when a detail goes wrong. Alder holds one contract. From the roofline to the backyard, one crew relationship, one schedule, one point of accountability. Our Home Remodeling team manages every trade under that single agreement, including the ADU and prefab options most local remodelers won’t touch.
Trusted Brands We Service in Los Serranos
We carry the material lines that hold up in this climate and pass County Fire review. That means Cambria and Silestone quartz for countertops, Kohler and Moen for fixtures, James Hardie for siding, GAF and CertainTeed for roofing, and Techo-Bloc, Unilock, and Tremron for pavers and hardscape. We stock what makes sense for Los Serranos jobs and order the rest direct through our supplier network, so you’re not waiting on a backordered vanity while the county clock runs on your permit. One contractor. Every phase.
See the difference
Before
After
Before
After
Before
AfterCommon Home Remodeling Problems We See in Los Serranos Homes
- County Fire WUI review surprise: A remodel scoped like a Chino Hills city job misses the non-combustible siding and ember-resistant vent requirements that County Fire stamps on nearly every Los Serranos addition. You sign a bid, then a change order lands before rough-in.
- Septic and well setback conflicts: Adding a bathroom or a master suite on an acreage lot can push your new foundation into the septic leach field setback or too close to the well head. The county catches it, and the addition moves or the design changes.
- Grading and drainage on open foothill lots: Flat-lot drainage templates fail on slopes that shed water fast during winter storms. Without open-lot grading scoped early, a new patio or addition redirects runoff toward the house or the neighbor’s barn.
- Long hauls and equipment access: Some Los Serranos lots sit back from the road with narrow drive aprons or low overhead clearance. Material deliveries and concrete trucks need staged access, and that coordination gets priced and scheduled up front on our jobs, not discovered mid-pour.
Pricing for Home Remodeling in Los Serranos, CA
Here’s what we’re actually quoting on Los Serranos jobs right now. These are market-calibrated ranges for the 91709 area, not national averages from a website.
| Project | Los Serranos Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
What moves your number inside these ranges? Septic and well setback constraints, County Fire WUI scope, the condition of your existing roof and siding, and how far your lot sits from a reasonable material staging area. We give you a written line-item quote before you commit, and we don’t sign change orders without your signature first. Call (833) 467-7020 to schedule a free estimate. We’ll walk the lot, pull the county records that matter, and give you a number you can actually build on.
We Also Serve Cities Near Los Serranos
We work throughout the Chino Valley foothills and the surrounding flatlands, so if you’re in Los Serranos now or planning a project in Chino, Yorba Linda, Montclair, or Pomona, the same licensed crew and the same material network apply. The permitting picture changes at each city line, which is exactly why a contractor with county-level experience beats a flat-lot city outfit every time.
Serving Los Serranos, CA — Our Local Coverage Area
We’re based in the Los Serranos 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 Remodeling in Los Serranos
Because Los Serranos is unincorporated San Bernardino County, not a city, so your remodel goes through County Fire’s high-fire-severity WUI plan check and Chino Valley Unified facility-fee coordination instead of a single city building department. That double review adds plan check time and often requires upgraded fire-resistant materials like non-combustible siding and ember-resistant vents. Call (833) 467-7020 and we’ll walk you through what your specific project triggers before you pay a dollar in fees.
Yes, and we do it through our ADU and prefab partner network, including Abodu, Dvele, and Boxabl. The catch on acreage lots is septic and well setbacks: the county will check where your leach field and well head sit before approving a new structure. We pull those records and design the ADU footprint inside the setback envelope first, so you don’t lose months on a variance.
We schedule deliveries in staged drops and confirm truck access, driveway width, and overhead clearance before materials are ordered. On long driveway lots, we stage materials near the work zone, not at the street, and we keep the county’s required defensible-space access clear while we work. Concrete pours and crane picks get a written access plan ahead of time.
On most additions and whole home remodels in the foothills, County Fire requires non-combustible siding, ember-resistant vents, Class A roofing, and sometimes tempered glass on elevations facing heavy vegetation. We spec these into the quote up front. You still choose your finishes and colors, but the base materials match what the county will stamp, so you’re not filing an appeal mid-build.
Because the county process for Los Serranos remodels generates documented requirements at every stage. Your approval, your change orders, your draw schedule, your material substitutions. When the county stamps something different than the original plan, a written change order protects your budget and timeline. We don’t do verbal handshakes on scope that can cost you five figures. Call (833) 467-7020 for a free estimate and a written quote you can hold us to.
Written by Nelson Ibarra, Owner at Alder Contractors, serving Los Serranos and the Chino Valley foothills since our first county WUI plan check.