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Abodu Construction in Bloomington, CA | Square One Builders
Square One Builders provides independent Abodu construction, placement, and finishing services across Bloomington. We’re not a factory rep or an authorized dealer. We’re a licensed general contractor who has actually set and finished Abodu backyard units on county-island lots here, and that hands-on install experience is what lets us handle the site work, permits, utilities, and punch lists that Abodu’s factory doesn’t touch. Call Brent Calloway and the team at (877) 688-9930 for a free estimate on your Bloomington Abodu project.

Why Bloomington Residents Choose Us for Abodu Service
Most remodelers in the Inland Empire have never laid hands on an Abodu unit. We have. Brent Calloway grew up in the Midway City pocket of Orange County and learned the trade through Golden West College’s Construction Technology program, then spent thirty years doing ground-level work on homes throughout the region. That’s the kind of background you want when a factory-built backyard home arrives on a truck and needs to be set, tied in, and made right on Bloomington’s specific soil. We know how Abodu’s panel connections, roof flashing, and foundation interfaces behave once installed, because we’ve fixed them after they’ve been through a couple of Bloomington summers and at least one good Santa Ana wind season. We match factory components where they’re structural and use quality aftermarket equivalents where it makes sense, so you’re not paying factory markup on a cabinet pull. One contractor, every system, from the ground up.
Styles & brands we work with







Common Abodu Construction Problems We Solve in Bloomington
Abodu builds a solid shell. Bloomington’s climate and county-island realities still create predictable problems. Here’s what we handle regularly:
- Foundation and grading shifts on sandy alluvial soil. Bloomington sits on loose, sandy soil that drains fast but moves when seasonal downpours hit the wash areas. Abodu units set on post-and-pier or slab systems will heave or settle if the drainage wasn’t graded away from the unit correctly. We regrade, add surface drainage, and re-level piers so the unit stays square.
- Lifted roof edges and wind-driven water after pass wind events. Bloomington sits at the base of the Cajon Pass, and those winds find every factory seam. We routinely see Abodu roof edge flashing lifted and water pushed into the panel envelope. Correct re-flashing beats replacement every time, unless the storm actually compromised the shell.
- Heat cycling damage on trim, caulk, and single-zone HVAC. Inland summer heat here is relentless. Exterior trim warps, caulk joints dry out and crack, and the compact unit’s HVAC struggles to keep a small space even. We replace trim with heat-appropriate material, re-seal joints properly, and reconcile the mechanicals so the unit cools evenly.
- Utility tie-ins that don’t meet San Bernardino County review. Bloomington is unincorporated, so your Abodu’s electrical, plumbing, and any septic or well connection goes through the county, not a city counter. We see undersized service panels and incomplete as-built documentation all the time. We pull the county permits, upgrade what needs upgrading, and get the paperwork right.
- Legacy site conflicts on older Bloomington lots. Much of Bloomington’s housing stock has had owner-built additions and detached shops added over the years. When a new Abodu lands on a lot with unpermitted legacy structures, the county sometimes flags the whole scope. We sort out what must be legalized and what can stay separate from the ADU permit path.
Abodu Service in Bloomington: What Local Conditions Mean for Your Equipment
Here’s the thing about Bloomington that nobody from a generic factory spec sheet understands. This is an unincorporated county island wedged between Fontana, Rialto, and Colton. That means your Abodu placement routes through San Bernardino County planning and building, not a city hall. It also means most lots are zoned rural-residential with the kind of depth you just don’t get in a neighboring incorporated city. On those deep lots off the 92316 corridor, we’ve set Abodu units clear of seasonal washes, away from the property line setbacks that would choke an Abodu repair in Fontana project, and with room for a detached shop or garage conversion that city zoning would never allow. That extra room changes the whole conversation about where a unit goes and how site work gets built around it. What it doesn’t change is the soil. Bloomington’s alluvial ground moves, and any Abodu foundation has to be graded and drained with that specific reality in mind. Start from square one, build it right.
Abodu Models & Products We Service in Bloomington
We work on every Abodu product line you’re likely to see in Bloomington: the Abodu ONE studio and one-bedroom, the Abodu TWO two-bedroom, the standard compact Accessory Dwelling Unit series, and the detached home-office and studio configurations. For structural and envelope-critical components like panel connections, flashing, and glazing hardware, we match Abodu’s factory components. For interior finishes, cabinetry, and site-built utility connections, we use quality aftermarket or locally sourced equivalents. This keeps your unit correct where it matters and sensible where factory-spec would just cost you more. If you’re considering an Abodu unit, see our full Abodu sales & service page for what we cover.
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AfterAbodu Service Pricing in Bloomington
What you’ll pay depends on whether we’re placing and finishing a new unit, converting an existing structure, or repairing a unit that’s already on your lot. Here are the ranges we work within in the Bloomington market:
| Service | Typical Range |
|---|---|
| ADU Construction (Abodu unit placement, site work, finishes, utility tie-in) | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Home Addition | $45,000 – $130,000 |
| Walk-In Shower Installation (ADU bathroom) | $4,500 – $12,000 |
Your site conditions drive a lot of the variance. A flat, well-drained lot with an easy utility run costs less than a deep lot with grade issues and an undersized panel. Our free estimate walks the site with you, checks what the county will want to see, and gives you a written line-item quote. Call (877) 688-9930 to set that up.

Serving Bloomington, CA — Our Local Coverage Area
We’re based in the Bloomington 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 – Abodu Construction in Bloomington
Yes. We handle the site work, foundation, permit path through San Bernardino County, utility tie-ins, interior finishes, and the final punch list. We’re an independent general contractor, not an Abodu-authorized installer, but we’ve completed full placements on Bloomington lots and we know the product as installed, not just as spec’d. Call (877) 688-9930 for a free site walk.
San Bernardino County. Bloomington is unincorporated, so there’s no city building counter to walk into. Plans, permits, and inspections all route through the county. That’s a slower, more detail-heavy process than a neighboring incorporated city like Abodu service in Rialto or Fontana would run, and that’s exactly why you want a contractor who’s already navigated it. We have.
Almost always a repair. Lifted flashing at the roof edge looks alarming, and Cajon Pass winds are genuinely rough on factory seams, but a re-flash and reseal fixes the issue in most cases. We only recommend replacing a unit when the envelope itself is compromised beyond watertight repair. Call (877) 688-9930 and we’ll assess it honestly.
The big two are sandy alluvial soil and seasonal wash downpours. Bloomington’s ground drains fast but it also shifts, especially where drainage wasn’t graded away from the unit. Post-and-pier systems heave, slabs settle at the edges, and if your lot sits anywhere near a wash, surface water becomes the main threat. We always regrade and add drainage before setting a unit here.
With site work, county permits, utility tie-ins, and finishes, plan on $90,000 to $220,000 depending on your lot and your finish level. A garage conversion runs $30,000 to $80,000. Your exact number depends on grade work, panel upgrades, and what San Bernardino County requires on your specific parcel. Estimates are free. Call (877) 688-9930 to get a real number for your lot.
Service Areas Near Bloomington
We also provide Abodu construction and ADU service in nearby communities including Corona, Norco, Montclair, Claremont, and La Verne. Many of these areas are incorporated, which changes the permit path significantly from what Bloomington owners face. If you’re in Mead Valley, see our Abodu service in Mead Valley page. If you’re closer to Meadowbrook, view Abodu service in Meadowbrook for details there. You can also visit our Bloomington service area page for the full scope of what we do across the region.
Book Your Abodu Service in Bloomington Today
If you’ve got an Abodu unit coming, an existing one that needs work, or a lot you’re still figuring out, call Square One Builders at (877) 688-9930. We’ll walk the site, talk through what the county will want, and give you a straight number. Your remodel, fully managed.
Written by Brent Calloway, Owner at Square One Builders, serving Bloomington and the Inland Empire for over 25 years.