A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Citrus, CA
Fielding ADU Builders handles ADUs, garage conversions, and room additions in Citrus, CA, where the housing stock creates a specific set of challenges. Most Citrus homes are single-story ranchers built between 1950 and 1980 on lots of 5,000 to 7,500 square feet. That means original 100-amp electrical panels, cast-iron waste lines, and detached garages that often sit too close to the property line under current county rules. We write the price before any work starts and back every build with a written one-year guarantee. Call (559) 238-9583 for a free estimate.
Why Citrus Homes Are Different
Citrus sits in unincorporated Los Angeles County, which changes how ADU work gets permitted and built. The city’s older homes were framed and wired for a different era: single-story, wood-frame ranchers with original 100-amp panels that cannot carry a new dwelling unit without an upgrade. Many lots run 5,000 to 7,500 square feet, and the homes sit within the county’s standard 5-foot side and 10-foot rear yard setbacks. That leaves little room for a detached ADU unless the design works around the setback rules or uses the existing garage footprint.
Climate works against you here too. Citrus gets hot, dry summers with intense UV exposure, which shortens the life of siding and roofing materials. Hard water from imported supplies eats at new plumbing components faster than homeowners expect. Mini-split cooling is the standard answer for a Citrus ADU, and we spec moisture management into every build. Cast-iron waste lines under these homes are often near the end of their service life, which means a garage conversion or ADU can require sewer line replacement before inspections pass.
The local knowledge that matters in Citrus is knowing which lots can support a legal ADU without a variance, and which ones need a junior ADU inside the existing home to avoid triggering the higher bar. We walk each property before quoting so there are no surprises at the permit counter.
Our Main Citrus Services
Citrus homeowners call us most about two projects: adding square footage to an existing home, and converting a garage or building a backyard unit. Each service has its own detailed page.
Room Addition Contractor in Citrus
A room addition on a Citrus rancher means matching the existing roofline, footing depth, and framing style so the new space doesn’t look bolted on. Most of these homes sit on post-tension slabs or raised foundations with original 100-amp panels, so we coordinate electrical service upgrades where needed. Permits go through unincorporated Los Angeles County, and the county checks setbacks, lot coverage, and fire-safety hardening. For the full breakdown, see our Room Addition Contractor in Citrus page.
Garage Conversion Contractor in Citrus
Detached garages and carports are common in Citrus, and many are the simplest path to added living space because the footprint already exists. The catch: these structures were rarely built to current habitable standards. Floor slabs are often uninsulated, rooflines lack proper ventilation, and the electrical feed was sized for a door opener, not a living space. We handle the structural and utility upgrades that make a conversion pass county inspection. Details are on the Garage Conversion Contractor in Citrus page.
ADU Builders in Citrus
Backyard ADUs in Citrus usually fall into two categories: a detached unit built within the county’s 5-foot side and 10-foot rear setbacks, or a junior ADU carved out of the primary home to avoid triggering those setbacks entirely. We work with prefab platforms like Abodu and Dvele where the lot allows crane delivery and conventional builds for tight access streets. Every ADU gets its own written price before work starts. Read more on the ADU Builders in Citrus page.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Citrus
We work with James Hardie siding on conventional builds and Abodu and Dvele for prefab ADUs where the lot and access work. Our mechanics handle these systems daily, which keeps turnaround tight. See our brands for the full list.
Pricing for ADU Company in Citrus, CA
The ranges below reflect typical Citrus jobs before permit fees. Your written quote will be specific to your lot, your existing utilities, and the building method you choose.
| Service | Typical range in Citrus |
|---|---|
| Garage conversion (attached, basic) | $85,000 – $140,000 |
| Garage conversion (full utility upgrade) | $120,000 – $190,000 |
| Detached ADU (1 bed / 1 bath, prefab) | $180,000 – $260,000 |
| Detached ADU (2 bed / 1 bath, conventional) | $240,000 – $340,000 |
| Junior ADU (within primary home) | $90,000 – $150,000 |
| Room addition (300-400 sq ft, single story) | $120,000 – $180,000 |
| Room addition (500-700 sq ft, with bathroom) | $180,000 – $260,000 |
| Electrical service upgrade (100A to 200A) | $4,000 – $7,000 |
| Sewer line replacement (cast iron to ABS) | $6,000 – $14,000 |
| Site work and foundation (detached ADU) | $15,000 – $30,000 |
In Citrus, the cost drivers are usually the existing panel capacity, cast-iron waste lines, and whether the lot needs a setback variance from the county. The price we put in writing before work starts is the price on the final invoice; the only legitimate change is if you change scope.
Neighborhoods We Serve in Citrus
We work across Citrus and the surrounding unincorporated pockets. Response time for a property walk and estimate is usually within a few business days, depending on our current schedule and the project size.
- Citrus (central, near Citrus Ave and D St)
- Unincorporated West Covina border
- Valinda area (north of Valley Blvd)
- South Hills adjacent
- Charter Oak border
Service Area – Cities Near Citrus
We serve Citrus and the surrounding communities, including West Covina, CA, Diamond Bar, CA, Covina, CA, and Hacienda Heights, CA. If you’re in one of these areas, call us for the same written-price promise and one-year guarantee we give Citrus homeowners.
Serving Citrus, CA - Our Local Coverage Area
We’re based in the Citrus 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 ADU Company in Citrus
We typically schedule a property walk in Citrus within a few business days of your call. Call (559) 238-9583 and a live person answers, not a voicemail queue. We’ll confirm a time that works for you.
They make setbacks and lot coverage the central constraint. A legal ADU is absolutely doable, but the design has to work inside the county’s standard setbacks or use the existing garage footprint. We check this before quoting so you’re not surprised at permit time.
No, unless you change the scope. The number on your written quote is the number on the final invoice. Every project also carries our written one-year guarantee; if workmanship fails within that time, we come back and correct it at no charge. Call (559) 238-9583 to schedule your free estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Citrus Customers Say
"Built a detached ADU behind our house. The builder is a veteran and runs the site like a platoon: schedule posted, crew on time, everything labeled. Finished within a few days of the date."
- Ken W."Honest feedback on what the lot could fit. Told me up front what would fit on the lot and what the setbacks would allow."
- Rita C."Room addition over the back patio. Framing is square, windows are tight, and the roofline matches."
- Danny L.
