A new rear addition with a vaulted beamed ceiling and tall windows
Room Addition Contractor · Bell Gardens, CA

Room Addition Contractor in Bell Gardens - 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.

Call to schedule your free estimate

282+
Cities Served
Free
Written Quotes
Licensed & Insured Written Quotes Free Estimates All Brands Satisfaction Guarantee
Free Estimate on SiteCalls Answered by a Live Person, 24/7Background-Checked TechniciansProudly serving local communities 20+ years
A single-story rear room addition with tall windows and a new patio
A new sunroom addition with three walls of windows
A bedroom and desk inside a converted garage
A new two-story ADU over a garage
An attached garage converted into living space
A compact kitchen inside a new ADU
A kitchenette inside a converted garage
A new modern ADU with wood cladding
Every project starts with

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

Get your free estimate

Fast, Reliable Room Addition Contractor Across Bell Gardens

A room addition in Bell Gardens is reviewed by the city’s own planning counter, not the LA County One-Stop, which changes the permit path, the inspection cadence, and the way your plans need to be drawn from day one. Most additions here run $180 to $310 per square foot depending on whether we’re tying into a 1950s stucco-and-slab original or working with a newer lot, and the written price you approve before the first inspection is the number on the final invoice. We know the homes, the setback rules, and the inspectors here because we frame and finish additions on Bell Gardens lots every month. If you’re trying to scope a bedroom bump-out, a primary suite, or a sunroom and want a real number instead of a sales pitch, call (361) 315-4177.

Call (361) 315-4177

Why Fielding ADU Builders Is Bell Gardens’s Preferred Room Addition Contractor Company

A second-story addition that matches the existing roofline

Our team is part of the Garrison Partners family, which has been building to The Garrison Standard since 2006. That standard is simple enough to write on a job board: show up in the window, price in writing, build by the book, leave it clean, and stand behind it for a year. Bell Gardens homeowners have already been through the other version of that story. They call us because Reed Calloway runs our jobs the same way on a 1950s slab home near Garfield Avenue as he does on a newer addition off Eastern Avenue: plans first, price second, then the work.

Every crew member who steps onto a Bell Gardens property is background-checked and in uniform, so you know exactly who’s on site and why. Our Room Addition Contractor team handles the permit set, the structural calcs, the tie-in, and the finish work as one scope. And when you call our office, a live person answers. No voicemail, no callback queue, no matter the hour.

We don’t ask Bell Gardens homeowners to trust us on personality. We hand them a written price, a written one-year guarantee, and a direct line to reach us if something fails inside that year. That’s the difference between a bid and a commitment.

Sunroom Builders in Bell Gardens

Sunroom Builders in Bell Gardens work on a specific problem: adding a light-filled room to a house on a lot where a full foundation addition is either too expensive or too close to the property line to permit comfortably. A sunroom here is often a slab-on-grade structure with large glazing, built as an attached addition off the back or side of a 1950s stucco home, and it still goes through the same city counter and framing inspection as any other conditioned space. In Bell Gardens, a permitted sunroom addition typically runs $145 to $220 per square foot depending on glazing package, roof tie-in, and whether the existing slab can be reused.

Attached sunrooms on existing slabs

The most common sunroom we frame in Bell Gardens ties into the back wall of a home where the patio slab is already there. We verify the slab thickness and rebar before we commit to the design. If the slab won’t carry the load, we cut and pour new footings at the tie-in points, which the city inspector checks before we frame.

Sunroom-to-garden transitions

Bell Gardens lots run small, which means the sunroom usually becomes the new back wall of the yard. We set the finished floor height to work with the existing grade and keep the door swing and step-down simple. These are the details that keep water out and keep the final inspection clean.

Room Additions in Bell Gardens

A second-story addition with a balcony, matched to the original house

Room Additions in Bell Gardens are not the same scope as a standalone ADU, and they shouldn’t be bid that way. A room addition here means a structural tie-in to the existing house, a shared firewall where required, a new roof plane or ledger connection, and a separate plan-check path through the city’s own counter. On small R-1 lots around Bell Gardens, a room addition also means watching the side and rear setbacks carefully, because older homes often sit closer to the line than the current code allows. A standard attached bedroom or primary-suite addition here runs $190 to $280 per square foot, with the price moving on roof structure, electrical panel capacity, and whether we’re sistering existing rafters.

Primary suite additions on 1950s originals

We recently framed a 320 sq ft primary-suite addition on a 1950s stucco-and-slab home near Garfield Avenue and Florence Place, where the existing roof was 2×4 rafters on 24-inch centers and needed a new ledger and sistered rafters before the tie-in could pass. Because the property sits in Bell Gardens’ R-1 zone with an older 5-foot side setback, we had to shift the wall line to hold the required separation and still keep the egress window on the plan. The framed shell, tie-in, and rough-in passed plan-check and framing inspection in one cycle because the local inspector worked from the same set of sheets we submitted at the counter.

Kitchen-adjacent bump-outs

A kitchen bump-out on a Bell Gardens home is usually the fastest way to add real usable square footage without a full second-story commitment. The scope is smaller, but the permit path is identical. We submit for the counter review, pull the rough inspections, and schedule the final the same way we would on a 400 sq ft addition.

Trusted Brands We Service in Bell Gardens

For Bell Gardens homeowners, the build method matters as much as the price. We work with James Hardie siding for conventional room additions and sunrooms because it holds up to the sun exposure and occasional heavy rain we see across southeast LA County without the paint cycles stucco demands. When a homeowner wants the addition framed off site and set in place faster, we’re fluent with Abodu and Cover for prefab and modular room structures, which can change the schedule and the inspection sequence on a tight Bell Gardens lot. We stock the common tie-in hardware, flashing, and Hardie trim locally so a materials run to Bell Gardens is not a week-long delay.

Common Room Addition Contractor Problems We See in Bell Gardens Homes

  • Designing off an old survey or assessor’s map. On small R-1 lots in Bell Gardens, an assessor’s parcel line is not the same thing as a field-surveyed building line. We’ve seen plans get red-tagged because the actual side setback was 18 inches off from what the hand-drawn site plan showed.
  • Assuming the 1950s slab or roof can carry the new room. A lot of Bell Gardens originals went up with 2×4 rafters on wide centers and a slab with no rebar documentation. The city inspector will catch a missing structural or electrical load calculation, and the fix is expensive once framing has started.
  • Bidding a room addition as a standalone ADU. The extra firewall, the tie-in, and the separate plan-check and inspection path for an attached addition in Bell Gardens is a different scope. A contractor who prices it like a detached unit is guessing, and the change order lands on the homeowner.
  • Missing the panel upgrade in the first quote. A 1950s Bell Gardens original usually has a 100-amp panel or smaller. Add a bedroom and a bath with its own circuit needs, and the panel goes over. We put the panel upgrade in writing before work starts so there’s no surprise at rough-in.

Pricing for Room Addition Contractor in Bell Gardens, CA

A basic attached room addition in Bell Gardens, with a simple roof tie-in and no panel upgrade, runs $190 to $260 per square foot in permits-ready condition. A primary suite with a bath and a heavier structural fix runs $260 to $310. Sunrooms run $145 to $220. Permit fees are a separate line item you’ll pay to the city, and we itemize them on the written estimate so you see the full picture before you approve anything. What moves the price is the existing roof structure, the slab condition, the panel capacity, and whether the inspector requires engineered calcs on the tie-in. We hand you the full written price before work starts, and the number on day one is the number on the final invoice. Call (361) 315-4177 and we’ll walk the job with you, no estimate fee.

We Also Serve Cities Near Bell Gardens

We run room addition and sunroom permits through the same disciplined process in the neighboring cities, so if you’re across the line in Downey, Bell, Maywood, or South Gate, the standards don’t change. Our crews serve the whole southeast LA County corridor. Read more about how we work across the region at our Bell Gardens page, or call the office directly at (361) 315-4177.

Serving Bell Gardens, CA - Our Local Coverage Area

We’re based in the Bell Gardens 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 Room Addition Contractor in Bell Gardens

Contact Fielding ADU Builders

A framer checking new wall framing on a home addition

If you’re planning a room addition or sunroom in Bell Gardens, get a written price before you commit to anything. Reed Calloway runs our Bell Gardens jobs personally, and he’ll tell you straight what the city will require, what the existing structure can carry, and what it will cost. Call (361) 315-4177 to schedule your free estimate. A live person answers, day or night.

Written by Reed Calloway, Owner at Fielding ADU Builders, serving Bell Gardens, CA.

Why Bell Gardens Chooses Fielding ADU Builders

We set the standard for room addition contractor in Bell Gardens.

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 Bell Gardens

Getting your room addition contractor handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your room addition 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 Bell Gardens - 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 room addition 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 Bell Gardens Customers Say

Trusted by homeowners across Bell Gardens and surrounding areas.

★★★★★

"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
★★★★★

"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. · Verified customer

Small homes that live large

Vaulted ceilings, compact kitchens and private decks: the details that make an ADU feel like a home.

Read our ADU guides
A former garage converted into a guest houseThe living room inside a new ADUA new bathroom inside a converted garageThe bedroom inside a new ADUThe bathroom inside a new ADUA small deck outside a new ADU

More ADU services in Bell Gardens

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.

A project lead measuring a backyard ADU site with the homeowner

Free site visit

A project lead walks the lot with you, checks what it allows and hands you a written, line-item price. No obligation.

Book a site visit
A building crew carrying lumber to a backyard ADU site

Find your local team

Each location is independently owned and works to the same written standard. Enter your ZIP code to reach yours.

A worker protecting the lawn before an ADU build starts

Read our written promise

What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise

Current Offers

Bring these savings to your next appointment.

Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

Expires Mar 31, 2027
Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

Expires Mar 31, 2027
Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

Ready for Room Addition Contractor in Bell Gardens?

Call now for a free estimate - or request one below. Licensed, insured, and here with fast after-hours help in Bell Gardens.

(361) 315-4177

Request a Free Estimate in Bell Gardens

Tell us about your room addition contractor needs - we'll respond within the hour.

By sending this request, you acknowledge our Privacy Policy and consent to receive communications by telephone, text message, or email about your request, including by the independent contractors we may refer it to.

Areas We Serve
Call Now - 24/7 Dispatch