A garage converted into a bright studio apartment
Garage Conversion Contractor · Montebello, CA

Garage Conversion Contractor in Montebello - Plans, Permits & Build, One Fixed Price

We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.

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An attached garage converted into living space
A kitchenette inside a converted garage
A second-story addition that matches the existing roofline
A new modern ADU with wood cladding
The bedroom inside a new ADU
The bathroom inside a new ADU
A small deck outside a new ADU
A second-story addition with a balcony, matched to the original house
Every project starts with

A free site visit, a check of what your lot allows and a written, line-item price.

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Fast, Reliable Garage Conversion Contractor Across Montebello

Garage conversions in Montebello typically cost between $85,000 and $145,000 before permit fees, depending on whether you’re adding a bedroom with a bath or building a full ADU with its own kitchen. That’s the honest range we quote most often, and we put it in writing before any work starts. Fielding ADU Builders knows Montebello’s housing stock well enough to tell you upfront whether your garage is a candidate for conversion or a teardown waiting to happen. Call (361) 315-4177 and we’ll walk the site, check the structure, and give you a written price.

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Why Fielding ADU Builders Is Montebello’s Preferred Garage Conversion Contractor Company

A former garage converted into a guest house

We’re not the contractor who quotes off a phone photo. Montebello’s pre-1960 garages demand a site visit before any number means anything. Our crews know the difference between a garage that was properly permitted in 1958 and one that was framed on a handshake deal. That knowledge keeps your budget from blowing up mid-project.

Reed Calloway leads our team, and he’s built the company around one rule: the price you approve on day one is the price on the final invoice. No change orders because someone “discovered” something at the framing stage. We check the structure, the slab, the panel, and the city’s records before we hand you a written number. Montebello homeowners call us because they’ve already been burned once by a contractor who moved the price at the door.

Every crew member on a Montebello job is background-checked and arrives in uniform. You know exactly who’s on your property. And when you call Fielding ADU Builders, a live person picks up, whether it’s noon or midnight. No voicemail, no callback queue.

Garage to Bedroom Conversion in Montebello

A Garage to Bedroom Conversion in Montebello turns an existing attached or detached garage into a permitted sleeping room, usually with a closet and an egress window. Most homeowners pursue this when a family member needs a first-floor room or when a home office outgrows the spare bedroom. A straightforward garage-to-bedroom conversion in Montebello generally runs $45,000 to $70,000, assuming the structure passes its footing and wall inspection without a full rebuild.

What a Bedroom Conversion Actually Involves

We don’t put down drywall over old garage framing and call it a day. A real conversion means verifying the slab is deep enough, the ceiling height meets current code, and the walls can hold insulation to Title 24 standards. On pre-1960 Montebello garages, that check usually turns up at least one deficiency. We correct it before framing, not after.

Permits and Egress

Montebello’s building department treats a garage-to-bedroom as a change of occupancy, not a cosmetic upgrade. That triggers egress requirements: a proper window opening, a smoke and carbon monoxide system tied to the main house, and fire separation where the wall meets the existing structure. We pull the permits ourselves and schedule the inspections so you don’t stand in line at City Hall.

Garage Conversion ADU in Montebello

A bedroom and desk inside a converted garage

A Garage Conversion ADU in Montebello converts your existing garage footprint into a fully independent dwelling with its own entrance, bath, kitchen, and utility connections. This is the route most Montebello homeowners take when they want rental income or a place for aging parents that’s close but not under the same roof. A full garage ADU in Montebello typically costs $110,000 to $145,000 before permit fees.

Utility Connections and Service Capacity

Most pre-1960 Montebello garages were built with a single 60-amp subpanel or no panel at all. An ADU needs its own electrical service, a dedicated water line, and often a gas line run back to the main house. On a corner lot off Whittier Boulevard, we ran a new subpanel and gas line back to a 1954 main house for a homeowner whose parents were moving in. That work added real cost, but it was in the written price before the first day of demolition.

Prefab vs. Conventional Build

We work with Abodu, Cover, and Dvele for homeowners who want a faster framing schedule, and we also build conventionally with James Hardie siding when the lot or the existing structure calls for it. Montebello’s older garages often need conventional framing because the slab and wall conditions don’t match a prefab module’s assumptions. We’ll tell you which route fits your lot and your budget, and we’ll tell you why.

Trusted Brands We Service in Montebello

If you’ve been researching garage conversions, you’ve probably come across Abodu, Cover, Dvele, and Mighty Buildings. We install and service all of them, and we stock common replacement parts locally so turnaround on Montebello jobs doesn’t stall waiting on a shipment. Whether you want a Tuff Shed-style structure finished as a bedroom or a full prefab ADU from Abodu, we match the build method to your lot and your budget. One honest conversation about your garage will tell us which system actually fits, and which one will fight the existing structure from day one.

Common Garage Conversion Contractor Problems We See in Montebello Homes

  • Unpermitted original construction. Most detached garages in Montebello were built before modern setback rules and many were never permitted at all. Scoping the job off a photo and quoting a flat number before checking the city’s records is the fastest way to blow up a budget. We pull the as-built status at Montebello City Hall before any design work begins.
  • Slab and ceiling height failures. Pre-1960 garages were not built for habitation. The slab is often too shallow, the ceiling too low, and the walls lack the structural bracing current code requires. Correcting the original slab’s slope and reframing a proper roof assembly is a real cost, and it belongs in the written estimate, not a surprise change order.
  • Electrical and gas service gaps. A garage built in 1955 has a light bulb and a door opener. An ADU needs a full subpanel, a water heater, a kitchen circuit, and often a new gas line run back to the main house. We include that scope in the written price on day one.
  • Title 24 and fire separation surprises. A change of occupancy triggers energy, egress, and fire-separation requirements the homeowner never sees coming. We’ve corrected enough Montebello garages to know where the fire-rated drywall goes and where the egress window must sit. We build it right the first time and the final inspection passes on the first walk-through.

Pricing for Garage Conversion Contractor in Montebello, CA

Here’s what moves the number on a Montebello garage conversion. A basic garage-to-bedroom runs $45,000 to $70,000. A full ADU with kitchen and bath runs $110,000 to $145,000 before city permit fees. The three biggest cost drivers are utility service upgrades, foundation and slab corrections, and the structural work required to bring pre-1960 framing up to current seismic and Title 24 standards. We don’t hand you a range and hope for the best. We walk the structure, check the records, and put the exact price in writing before a single nail is driven. Call (361) 315-4177 and schedule a free estimate. The number you approve is the number on the final invoice.

We Also Serve Cities Near Montebello

Fielding ADU Builders serves Garage Conversion Contractor in Montebello and the surrounding communities, including Pico Rivera, Monterey Park, Rosemead, and Bell Gardens. If your home sits just outside the Montebello city line, we cover the same territory and pull permits from the same regional building departments. Our Garage Conversion Contractor team handles the full scope from first site visit to final inspection across the area.

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 Garage Conversion Contractor in Montebello

Get Your Written Price Before Any Work Starts

If you own a garage in Montebello and you’re weighing a bedroom conversion or a full ADU, the first step is a site visit that checks the structure, the slab, the panel, and the city’s records. We’ll hand you a written price you can hold us to, backed by The Garrison Standard: a one-year written guarantee on every project. If the work fails inside that year, we come back and correct it at no charge. Call (361) 315-4177 today and schedule your free estimate. You’ll speak to a live person, and you’ll get a straight answer about your garage.

Why Montebello Chooses Fielding ADU Builders

We set the standard for garage conversion contractor in Montebello.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Montebello

Getting your garage conversion contractor handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your garage conversion contractor needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Montebello - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local garage conversion contractor pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Montebello Customers Say

Trusted by homeowners across Montebello and surrounding areas.

★★★★★

"Room addition over the back patio. Framing is square, windows are tight, and the roofline matches."

Danny L. · Verified customer
★★★★★

"Foundation and slab poured on schedule. Crew kept the yard orderly."

Marian J. · Verified customer
★★★★★

"Garage conversion with a new bath and kitchenette. Permit was handled by them. Inspection passed first time."

Sheila B. · Verified customer

More ADU services in Montebello

Every build below starts the same way: a free site visit and a written price.

Getting started with Fielding

Every project starts with a conversation and a written price. Here is how to take the first step.

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