Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Rialto
If you’re planning a kitchen remodel, room addition, or garage conversion in Rialto, you need one team that handles the full scope under a single contract. Polaris Contractors does exactly that: structural work, roofing, windows, doors, kitchens, baths, hardscaping, and even prefab ADUs, managed by us start to finish. We’re not a patchwork of subs. We own the outcome. Call (855) 473-6535 to schedule a free estimate, and we’ll walk your property in Rialto before we ever put a number in front of you.
Why Polaris Contractors Is Rialto’s Preferred General Contractor Company
Rialto homeowners keep calling us for the same reason: one call gets the whole job done. Our General Contractor team has walked enough 1950s-1980s Rialto tracts to know what’s behind the drywall before we open it. When a homeowner in the 92376 flats tells us they want to convert the garage, we pull the as-built records first. That’s the Rialto difference. Half those conversions were never permitted, and the footing doesn’t exist. We handle the legalization, the structural correction, and the finish work without making the homeowner chase three different companies.
Rick Sondermann runs Polaris Contractors with a simple rule: write the scope after we see the conditions, not before. That’s why Rialto customers trust our fixed written line-item quotes. You’ll know the material cost, the labor, and the permit path before you sign. We carry insurance and we’re licensed to operate as a full-scope general contractor across San Bernardino County.
Styles & brands we work with
Remodeling Contractor in Rialto
A Remodeling Contractor in Rialto wears a different hat than in newer exurban cities. Here, the job frequently starts with investigating what a prior owner already did. A 92376 kitchen remodel might mean opening the wall and finding wiring that was never inspected. A bathroom in a 1970s ranch might sit on subfloor that’s been patched twice. We scope for that from the first visit. A typical kitchen remodel in Rialto runs $14,000 – $45,000 depending on cabinet line, countertop material, and whether we’re moving plumbing. A bathroom remodel runs $9,000 – $28,000. Every quote accounts for the real condition of the house, not an idealized version of it.
What Actually Gets Inspected in Older Rialto Homes
Before we quote a remodel in Rialto, we check the footing, the roof framing, the panel, and the venting. Not because we’re looking to upsell, but because the house will be opened anyway. Finding the issue before demo costs less than finding it after. On a recent acreage parcel off the hillside side in 92377, our crew scoped a detached shop and ADU where the real cost drivers were equipment access, a long material haul, and well and septic setbacks set by county review rather than city counter hours. We pulled the as-builts first, confirmed load-bearing and footing conditions, then wrote the scope of work with a draw schedule tied to each inspection sign-off so the owner never paid ahead of a passed inspection on the grading and drainage work.
Material Selection Without the Showroom Runaround
We guide Rialto homeowners to the right material for their budget, not a catalog of everything. Want a mid-market kitchen? We’ll spec KraftMaid cabinetry, Moen fixtures, and Silestone quartz. Want design-forward? We’ll show you Cambria, Grohe, and Toto. You get curated access to 50+ vetted brands without spending four weekends driving to showrooms in Fontana and Ontario. Built to the brand’s specification, installed to ours.
Licensed General Contractor in Rialto
A Licensed General Contractor in Rialto has to understand something most homeowners don’t: the permitting path changes depending on which side of the city line you’re on. Inside the city, a garage conversion in the 92376 tracts almost always means San Bernardino County records kick back an unpermitted addition from the 1970s or 1980s. The ‘bedroom’ has no permitted footing. That changes the entire project: we pull as-built plans, legalize the space, then remodel. On acreage parcels outside city limits near the 92377 hillside, the whole legalization question shifts to San Bernardino County permitting, not City of Rialto. County review means septic and well setbacks, grading and drainage mandates, and longer plan check times. We navigate all of it. A garage conversion in Rialto typically runs $30,000 – $80,000. An ADU construction runs $90,000 – $220,000. We’ll tell you which number applies to your parcel before you spend anything.
The Permit Legalization Path
When we discover an unpermitted addition on your Rialto property, we don’t stall the job. We pull the original parcel records, bring in a structural engineer if the footing is missing or undersized, and submit as-built drawings to the correct agency. The goal is a closed permit and a legal square-footage count on your property record, not a hidden liability when you eventually sell. This is a specialty, not a sideline. We’ve done enough of these across Rialto to know how the city and the county each respond.
Grading and Drainage, Not Just Concrete
Rialto sits in the hot, dry Inland Empire with intense summer sun and Santa Ana wind events. UV degrades shingles and exterior paint fast, and wind-driven dust penetrates older wood-framed homes. Any addition or ADU we scope includes a real grading and drainage plan for the open lot. Otherwise, unmanaged runoff undermines the slab and subfloor long after the punch list is closed. That’s not optional on Rialto acreage. It’s the difference between a building that lasts and one that fails slowly.
Trusted Brands We Service in Rialto
Rialto homeowners who want impact-rated windows ask about PGT and CGI. Those who want a front door that actually seals the dust out ask about Therma-Tru. We install them all. On the window replacement side, we carry ECO Window Systems as a strong mid-tier option that handles Inland Empire sun well. For design-driven projects, ES Windows gives us a clean aluminum line for larger openings and modern ranch updates. And for glass-focused repairs and retrofits, Mr-Glass keeps our supply chain tight when a Rialto project needs fast turnaround on custom panes. We don’t stock every brand in a warehouse in Rialto, but we have direct local supplier relationships that cut lead time to days, not weeks.
Common General Contractor Problems We See in Rialto Homes
- Unpermitted garage conversions with no footing. Prior owners in the 1970s-90s boom built ‘bedrooms’ without permits, and the slab wasn’t engineered for living space. We pull records, legalize what’s salvageable, and rebuild what isn’t.
- Roof failures from Inland Empire UV and wind. Older asphalt shingles on Rialto ranch homes break down fast under intense sun and Santa Ana wind-driven dust, and flat or low-slope sections need hot-mop or TPO work. We replace full roof systems when band-aid patches won’t hold.
- County permitting surprises on acreage parcels. A detached shop or ADU outside city limits hits well and septic setbacks that force a redesign after the pad is already graded. We pull county requirements before we grade, not after.
- Grading failures on open lots. Without a drainage plan, rainwater and wind-driven dust undermine slabs and subfloors. We design the drainage and grade at the same time we design the structure, so the two don’t fight each other.
See the difference
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AfterPricing for General Contractor in Rialto, CA
Here’s what Rialto homeowners should expect to pay for the most common full-scope projects. These are real ranges from the Rialto market, not national averages.
| Service | Typical Rialto Range |
|---|---|
| Garage Conversion | $30,000 – $80,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
What pushes a Rialto remodel from the low end to the high end: whether the space is currently legal, whether county review applies, what the roof and footing actually look like, and the material tier you choose. We write fixed line-item quotes after we walk the property, so the number doesn’t move mid-job unless you change the scope. Call (855) 473-6535 to schedule a free estimate and get your real number.
We Also Serve Cities Near Rialto
Our General Contractor in Rialto work regularly takes us into the surrounding communities. We serve Bloomington, Fontana, Muscoy, and San Bernardino with the same single-source approach and county awareness we bring to every Rialto job. If you’re on the edge of one of these cities, call us and we’ll confirm coverage for your specific address.
Serving Rialto, CA — Our Local Coverage Area
We’re based in the Rialto 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 General Contractor in Rialto
We schedule free estimates in Rialto within a few days of your call. For structural or safety issues like a failed roof section or a compromised footing, we prioritize the visit and give you a written line-item quote the same week. Call (855) 473-6535 and we’ll get you on the schedule.
Yes. We work both ZIP codes regularly, from the older 92376 ranch tracts near Rialto Avenue to the 92377 hillside side where acreage parcels and county permitting rules change the scope. Your address tells us which permitting authority applies before we quote.
We tie draws to inspection sign-offs, not arbitrary calendar dates. On a larger addition or ADU, you pay in phases as each stage passes inspection: grading and foundation, framing and rough-in, then finish work. That way you’re never paying ahead of verified progress on your Rialto parcel. Call (855) 473-6535 for an exact draw schedule on your project.
Not meaningfully. Rialto’s cost drivers are the age of the housing stock and the permitting path, not the city name. A ranch home from 1972 with an unpermitted garage conversion will cost more to remodel than a clean 1990s home in Fontana. We’ll tell you where your project lands on that spectrum before you commit.
We back our workmanship with a written warranty tied to the specific scope we install. The specific warranty term depends on the project type, and we spell it out line by line in your contract. We also honor the manufacturer warranties on every brand we install, from Therma-Tru doors to ECO Window Systems glass. Call (855) 473-6535 for details on your Rialto project.
Get Your Rialto Project Scoped the Right Way
If you’re in Rialto and planning a remodel, addition, ADU, or full exterior update, call Polaris Contractors at (855) 473-6535 for a free estimate. We’ll walk your property, pull the records, check the footing, and tell you what it actually takes to build what you’re picturing. One team, full scope, from the roof down to the pavers.
Written by Rick Sondermann, Owner at Polaris Contractors, serving Rialto and the Inland Empire with full-scope general contracting.