A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Montebello, CA
Fielding ADU Builders handles accessory dwelling units, garage conversions, and room additions in Montebello, where the housing stock runs older, lots are tight, and the city’s building department asks real questions before anything gets framed. If you’re weighing a backyard ADU against a garage conversion on a 5,000-square-foot Montebello lot, we’ll walk you through both numbers before you commit to either. Call (361) 315-4177 and we’ll put a written price in your hand before any work starts.
Why Montebello Homes Are Different
Montebello’s housing was largely built between the 1920s and 1960s, which means most lots measure 5,000 to 6,500 square feet with homes set close to the property line. That changes the ADU conversation. A detached unit that fits comfortably in a newer subdivision often needs a setback variance here, the city’s written permission to build closer to a property line than the standard rule allows. We handle that paperwork as part of the job, not as an afterthought.
The soil under much of Montebello is a sandy loam over alluvial deposits from the Rio Hondo and San Gabriel River. Foundation work for a backyard ADU or a room addition usually requires slightly deeper footings than a homeowner might assume, and the city’s inspectors expect to see the engineer’s stamp on that plan. Older homes also carry the usual surprises: galvanized plumbing that predates modern code, electrical panels at capacity, and garage slabs poured without rebar. None of it is a dealbreaker. All of it shows up in the written estimate, because we price what we can see and name what we’ll verify during the permit phase.
Our Main Montebello Services
Most Montebello homeowners call us for one of three things: more square footage on the existing house, a converted garage, or a detached ADU in the backyard. Here’s what each one looks like here.
Room Addition Contractor in Montebello
A room addition in Montebello usually means expanding out the back of a 1940s or 1950s ranch, which brings the roofline, the foundation, and the existing electrical load into the same conversation. Many of these homes have already been through one remodel, so we’re often matching framing to work someone did twenty years ago. The city reviews the structural drawings closely, and we carry that plan through inspection without improvising halfway. Room Addition Contractor in Montebello
Garage Conversion Contractor in Montebello
Montebello garages in the older neighborhoods tend to be detached or set back on a long driveway, which actually helps a conversion go cleaner than an attached garage would. The trade-off is that the city’s building code still needs the finished unit to meet ceiling height, ventilation, and emergency egress standards, and some older garages fall short on all three. We measure first and price what it actually takes. Garage Conversion Contractor in Montebello
ADU Builders in Montebello
Detached ADUs in Montebello are most practical on lots with a usable rear yard, which often means a 800- to 1,000-square-foot unit behind a home that already covers a good share of its parcel. The city’s accessory dwelling unit rules follow California state law, so parking and setback relief apply, but utility connections still depend on where the existing sewer and electric lines sit. We map that before we commit to a layout. ADU Builders in Montebello
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 Montebello
We build with the platforms Montebello homeowners already research: Abodu, Cover, Dvele, Mighty Buildings, and the like, plus conventional framing with James Hardie siding. Our brands page runs through what each option costs and how it holds up. The brand you pick changes the schedule and the price more than the quality of the finish.
Pricing for ADU Company in Montebello, CA
| Service | Typical range in Montebello |
|---|---|
| Detached ADU (prefab, 400 – 600 sq ft) | $140,000 – $210,000 |
| Detached ADU (conventional, 800 – 1,000 sq ft) | $230,000 – $340,000 |
| Garage conversion (attached or detached) | $85,000 – $130,000 |
| Room addition (400 – 600 sq ft) | $110,000 – $180,000 |
What pushes the number up in Montebello is usually the foundation: older garages with slabs that need cutting for plumbing, or backyard ADUs requiring deeper footings because of the soil. Whatever the conditions, the price goes in writing before any work starts, and that number is what you pay at the end.
Neighborhoods We Serve in Montebello
We work across Montebello from the hillside streets north of Beverly Boulevard down through the grid around Montebello Boulevard and Whittier Boulevard. Response time for estimates runs about one to two business days depending on how many active jobs are in the queue.
- North Montebello, including the streets above Lincoln Avenue
- The area around Grant Rea Park and Montebello City Park
- South Montebello, near the Shops at Montebello and the 60 Freeway
- East Montebello along San Gabriel Boulevard and the Rio Hondo edge
Service Area – Cities Near Montebello
We take jobs in the cities bordering Montebello when the property sits close enough for our crews to run permits and inspections without losing half a day in traffic. Fielding ADU Builders also covers Pico Rivera, CA, Monterey Park, CA, Rosemead, CA, and Bell Gardens, CA.
Serving Montebello, CA - Our Local Coverage Area
We’re based in the Montebello 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 Montebello
Most detached ADUs in Montebello run four to seven months from signed contract to final inspection, with prefab units on the shorter end. The city’s plan review usually takes four to eight weeks depending on the workload at the building counter. Call (361) 315-4177 and we’ll give you a schedule tied to your specific lot, not a generic timeline.
Yes. Montebello enforces California building code for any garage conversion, which means plans, inspections, and a final sign-off. Skipping permits is a fast way to get a red tag and a lien problem when you sell. We pull every permit and handle every inspection for the projects we build.
We cover the entire city, from the hills north of Beverly Boulevard down to the 60 Freeway. Dispatch and scheduling run from our Los Angeles office, and crews live and work in the Montebello area, so estimates and inspections are scheduled on local time. Call (361) 315-4177 for a 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 Montebello Customers Say
"Room addition over the back patio. Framing is square, windows are tight, and the roofline matches."
- Danny L."Foundation and slab poured on schedule. Crew kept the yard orderly."
- Marian J."Garage conversion with a new bath and kitchenette. Permit was handled by them. Inspection passed first time."
- Sheila B.
