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 Home Remodeling Across Foothill Ranch
Home remodeling in Foothill Ranch runs on two clocks: yours, and the HOA’s. Most homes here went up in the 1990s and now sit at the age where kitchens, bathrooms, roofs, and windows all start asking for attention at the same time. We work inside that reality every week, from Alton Parkway up into the neighborhoods off Towne Centre Drive, and we schedule around architectural review timelines without letting your project stall. If you’re planning a remodel, a home addition, or an ADU, call (877) 688-9930 and we’ll scope it from the ground up.

Why Square One Builders Is Foothill Ranch’s Preferred Home Remodeling Company
Square One Builders has spent years working Foothill Ranch’s specific conditions: HOA-governed tract homes, graded foothill lots, and a wildland fire zone that changes how we detail exterior work. We know what the architectural review committees off Bake Parkway and Portola Parkway flag, what the WUI inspectors want on a deck or roof replacement, and how to price a project so the number you approve is the number you pay. Brent Calloway runs our operation with one rule: scope everything before the first change order has to exist. Foothill Ranch homeowners call us because they want a single contractor accountable for every system, not three subs pointing fingers.
We’re a licensed general contractor based in Westminster, but the Foothill Ranch work we take on gets our full local attention. Our Home Remodeling team handles kitchens, bathrooms, additions, ADUs, roofing, windows, and hardscape under one contract. That matters here because so many projects bundle interior and exterior scope. You replace a 1990s kitchen and discover the patio cover needs ember-resistant detailing. You add a bathroom and the HOA wants the exterior stucco patched to match a 25-year-old color. One contractor, every system. No gap between trades where the finger-pointing usually lives.
Styles & brands we work with







Home Remodeling Contractor in Foothill Ranch
A Home Remodeling Contractor in Foothill Ranch does work that starts with the HOA packet and ends with the WUI inspection. That’s the honest version. Most of our projects here are renovations and additions on homes built between 1994 and 2001, which means we’re dealing with original builder-grade plumbing fixtures, single-pane windows installed before Title 24 tightened, and deck connections that were never detailed for ember resistance. A full kitchen remodel in Foothill Ranch typically lands between $14,000 and $45,000 depending on cabinet grade and whether you’re reconfiguring walls. A bathroom runs $9,000 to $28,000. To get started, call (877) 688-9930.
Kitchens and Baths on 1990s Bones
Most Foothill Ranch kitchens we open up have the original footprint, a soffit above the upper cabinets, and flooring that’s lived through 25 years of family traffic. We spec cabinets and counters to your budget, not ours. Cabinet installation alone runs $4,000 to $13,000 here, and countertops $2,000 to $6,500. We’ll show you KraftMaid against Wellborn, Cambria against Silestone, and let you choose where the money goes.
Additions and ADUs on Graded Lots
Foothill Ranch lots are cut into the Saddleback Valley foothills, so a home addition that looks flat on paper often needs slope stabilization, retaining walls, or drainage correction before framing starts. A home addition here runs $45,000 to $130,000. Detached ADUs run $90,000 to $220,000 and come with a county permitting path that a city-only remodeler may not know how to navigate. Brent Calloway signs off on every scope before we quote, so you’re not surprised later.
Home Remodeling Companies in Foothill Ranch
Home Remodeling Companies that work Foothill Ranch without understanding the dual HOA-plus-WUI review will cost you money. We’ve seen it: a homeowner hires a flat-lot contractor on price, framing goes up, the HOA flags the patio cover detail, and the WUI inspector requires noncombustible fencing near the structure. Now you’re eating a change order on work that’s already installed. Our team pulls both approvals up front. A garage conversion in Foothill Ranch runs $30,000 to $80,000. A roof replacement runs $8,000 to $20,000, and we spec Class A materials like CertainTeed and Owens Corning because the fire zone leaves no room for a cheaper shingle that fails inspection. Call (877) 688-9930 for a straight answer on your project.
The Single-Contract Advantage
You should never have to hire a roofer, then a window company, then a separate kitchen crew. Square One Builders manages the full scope. That means when a Foothill Ranch exterior remodel triggers WUI detailing on the deck, and the interior remodel needs matching stucco, we coordinate both under one schedule and one set of architectural review submittals.
Built Around Foothill Ranch’s Approvals
Every project here runs through the community’s design review process. We prepare submittal packages with paint chips, material specs, and elevation drawings the committee can actually read and approve on the first pass. That’s how you keep a six-month remodel from turning into a nine-month one. Your remodel, fully managed from the ground up.

Trusted Brands We Service in Foothill Ranch
We don’t spec materials from whoever has the best regional rep that week. We pull from a portfolio of more than 50 nationally recognized brands so the product fits the project, the fire code, and your budget. On Foothill Ranch roofs we lean on CertainTeed and Owens Corning Class A systems because the wildland-urban interface here demands ember resistance that a mid-grade shingle does not give. IKO and Atlas options come into play when a homeowner wants a different look or a tighter material budget. For ES Windows repair in Foothill Ranch, cabinetry, countertops, and plumbing fixtures, we spec the right material for your project, not the one with the biggest margin. We keep regular communication with local suppliers so materials arrive before the crew is standing around waiting.
See the difference
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After
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After
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AfterCommon Home Remodeling Problems We See in Foothill Ranch Homes
- Skipping HOA architectural review until after framing. We’ve taken over projects where the homeowner, or a prior contractor, built a patio cover or fence without committee sign-off. The HOA has real enforcement power here, and a correction notice mid-project costs more than the review would have.
- Treating a graded hillside lot like it’s flat. Homes off Bake Parkway and the surrounding Saddleback foothills sit on engineered pads that have settled, shifted, and shed water for 25-plus years. Slab cracks, retaining wall lean, and drainage that channels runoff toward the foundation show up on almost every larger remodel we scope.
- WUI fire-code details missed on exterior work. Decks, fences, patio covers, and roof replacements all carry ember-resistant vent, noncombustible cladding, and Class A roofing requirements in this fire zone. A contractor who does not pre-detail these items will hand you a change order when inspection fails.
- Original builder-grade systems still running. Many 1990s Foothill Ranch homes still have their first water heater, original single-pane windows, and builder-grade cabinets that are delaminating. We plan for these discoveries during scope, not as a surprise line item after demo.
Pricing for Home Remodeling in Foothill Ranch, CA
Foothill Ranch pricing is shaped by two forces that do not exist in most Orange County cities: HOA architectural review and WUI fire-code compliance. Both add scope, time, and a little money, but they also protect your home’s value in a way that matters here. The table below gives you real ranges for the most common Foothill Ranch remodels. A kitchen lands between $14,000 and $45,000. A bathroom runs $9,000 to $28,000. An addition runs $45,000 to $130,000. These are market-calibrated numbers, not averages pulled from a national site. The free estimate is how we turn a range into a fixed number for your house.
| Project | Foothill Ranch Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
If a quote comes in well under these numbers from a contractor who does not mention HOA review or WUI detailing, ask hard questions. What sounds like a deal in Foothill Ranch is often a scope that has not been built yet. Call (877) 688-9930 to schedule a free estimate and we will put everything in writing before you sign.
We Also Serve Cities Near Foothill Ranch
Square One Builders works across the Saddleback Valley, so if you’re in Portola Hills, Lake Forest, Mission Viejo, or Trabuco Canyon, the same full-scope team is available. These neighboring communities share similar 1990s housing stock and foothill fire-code conditions, but each has its own HOA quirks and permitting path. For service in this area, reach our team through our Home Remodeling in Foothill Ranch team and we’ll point the right crew your way.
Serving Foothill Ranch, CA — Our Local Coverage Area
We’re based in the Foothill Ranch 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 Home Remodeling in Foothill Ranch
Yes, for many Foothill Ranch remodels and additions the permitting path runs through Orange County rather than a city building department, especially on larger lots, detached structures, and ADUs. Foothill Ranch sits in unincorporated Orange County territory in ZIP 92610, so additions, detached ADUs, shops, and some exterior scope are reviewed by county plans examiners. We prepare county-ready submittals and know where the county process differs from city permitting, which keeps permits moving instead of stalling on resubmittals. Call (877) 688-9930 and we’ll tell you which path applies to your project.
Because graded foothill lots need slope and drainage engineering before you ever frame an addition or ADU, and that work costs real money in Foothill Ranch. Lots cut into the Saddleback Valley foothills carry retaining walls, soil movement, and runoff patterns that a flat tract lot in Lake Forest or Mission Viejo does not. We bring in geotechnical input when needed, include retaining wall and drainage scope in the quote up front, and never price a foothill lot like it’s flat. Call (877) 688-9930 for a site-specific estimate that accounts for your lot’s actual grade.
In most cases yes, but on Foothill Ranch acreage a detached ADU or shop runs through county permitting, septic and well setbacks if they apply, and HOA design review all at once. That combination changes the price and the timeline. A detached ADU here typically runs $90,000 to $220,000 depending on size, site access, utility runs, and slope work. We are authorized to work with Abodu, Dvele, Boxabl, Mighty Buildings, and Plant Prefab when a prefabricated structure makes more sense than stick-built. Call (877) 688-9930 to talk through which option fits your lot.
Yes, and this is the single biggest difference between Foothill Ranch and most other Orange County cities. Decks, patio covers, fences, and roof replacements here sit in a wildland-urban interface zone against the Cleveland National Forest foothills, so inspectors require Class A roofing, ember-resistant vents, and noncombustible fencing near the structure, on top of whatever the HOA architectural committee mandates. We pre-detail all of that before quoting so you’re not paying a change order after framing. Call (877) 688-9930 and we’ll walk your project through both approvals.
By scoping the HOA review, WUI detailing, slope and drainage work, and existing-condition discovery before we ever write the contract. A few years ago on a graded hillside lot off Bake Parkway, we opened a 1990s Mediterranean kitchen planned for Wellborn cabinetry and a Cambria island, but before the first cabinet went in we had to rework the exterior wall rough-in for an ember-resistant vent detail the WUI inspector flagged and get the HOA sign-off on file. Our team also caught a soft subfloor section left by the original builder-grade install, which became a written change order before we closed out the punch list. That is how we prevent disputes: find it early, put it in writing, and keep the homeowner in the loop. Call (877) 688-9930 for a free estimate from a team that works Foothill Ranch conditions every week.
Written by Brent Calloway, Owner at Square One Builders, serving Foothill Ranch and the Saddleback Valley from the ground up.