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
Remodeling Company in Rancho Santa Margarita, CA
Home renovation in Rancho Santa Margarita means working on houses built almost entirely in the 1980s and 1990s, when the Santa Margarita Company developed this master-planned community. Most of the work we do here involves updating original tract homes and townhomes: re-roofing aging Spanish clay tile, replacing builder-grade windows, gutting original kitchens and baths, and correcting plumbing and electrical systems that were installed before current code. The city’s HOA and architectural review process adds a layer to exterior work that doesn’t exist in most other Orange County cities. San Mateo Construction handles the full scope, from roofline to foundation, under one contract. Call (855) 901-7266 for a free estimate.
Why Rancho Santa Margarita Homes Are Different
Rancho Santa Margarita was built as a master-planned community in a compressed window of time, which means entire neighborhoods share the same construction era, the same original materials, and the same failure points. The early phases around Rancho Santa Margarita Parkway and Antonio Parkway are now 30 to 40 years old. Original clay tile roofs are reaching the end of their underlayment life, and the Santa Ana winds that sweep through the foothills don’t help: loose tiles, lifted flashing, and wind-driven debris are common call reasons. Stucco exteriors crack with the temperature swings between hot inland summers and cool nights, and original single-pane windows struggle with the heat.
The lake-area townhomes and condos present a specific set of issues. Many still have original polybutylene plumbing and aluminum wiring, both of which fail during remodels and both of which need full replacement once walls are opened. The strict HOA rules require exterior stucco and tile to match exactly, so we source or custom-match materials that are no longer standard production items. That’s a procurement problem most contractors in other cities never face. This is a place where renovation planning has to account for architectural review timelines and material-matching before a single wall is opened.
Styles & brands we work with







Our Main Rancho Santa Margarita Services
The two services Rancho Santa Margarita homeowners ask about most are full general contracting for multi-trade projects and complete home remodeling. Here’s what each one looks like in this city.
General Contractor in Rancho Santa Margarita
A general contractor in Rancho Santa Margarita has to coordinate more than just subs. Exterior changes run through the HOA’s architectural review committee, which can take weeks and requires specific material submittals. Interior work often uncovers original 1980s and 1990s building practices that need correction. San Mateo Construction manages each phase – permits, HOA applications, material procurement, subcontractor scheduling, and inspection sign-off – so the homeowner deals with one point of contact from start to finish. If you’re planning a multi-trade project, see our General Contractor in Rancho Santa Margarita page for the full picture.

Home Remodeling in Rancho Santa Margarita
Home remodeling in Rancho Santa Margarita usually means updating a 1980s or 1990s home without disturbing the Mediterranean or Spanish Revival character the HOA protects. Kitchens, bathrooms, flooring, windows, and exterior stucco are the most common scopes. We help homeowners select from a curated range of brand-name materials – Cambria or Caesarstone countertops, KraftMaid or Wellborn cabinetry, Kohler or Grohe fixtures – rather than whatever happens to be on a supplier’s shelf that week. For details on how we approach a full-home remodel here, visit our Home Remodeling in Rancho Santa Margarita page.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Home Renovation in Rancho Santa Margarita

Home renovation in Rancho Santa Margarita frequently means opening walls in a 30-year-old house and finding what’s behind them: polybutylene plumbing, aluminum wiring, and builder-grade everything. The homes here were built quickly, in planned phases, and many systems are now at the end of their service life. Renovating properly means replacing those systems rather than patching them, all while matching the exterior aesthetic the HOA enforces. Our Home Renovation approach covers structural, mechanical, and finish work under one contract, so the same team correcting your wiring is also choosing your kitchen tile.
Home Renovation Contractors
Signs you need it
Multiple systems failing at once – a roof leak, a cracked stucco wall, original windows that fog or stick, and plumbing that rumbles or leaks – usually means it’s time to call renovation contractors rather than patching one issue at a time.
What it costs in Rancho Santa Margarita
A whole-home renovation in Rancho Santa Margarita typically falls between $45,000 and $130,000 depending on square footage, system replacement scope, and finish selections.
How we do it
We assess the existing systems first, identify what must be replaced versus what can be repaired, then sequence the work so structural and mechanical trades happen before finishes, with one contract covering every trade.
Home Renovators
Signs you need it
If you’re planning to sell, renting out, or simply tired of living with original 1980s cabinets, laminate counters, and fluorescent kitchen lighting, home renovators can bring the whole interior up to current standards in one pass.
What it costs in Rancho Santa Margarita
Interior-focused renovation work in Rancho Santa Margarita typically runs $14,000 to $45,000 for a kitchen, $9,000 to $28,000 for a bathroom, or more when the scope includes multiple rooms and system upgrades.
How we do it
We consolidate demolition, electrical, plumbing, drywall, and finish work into a single schedule with one accountable team, so you’re not juggling separate trades or waiting on mismatched lead times.
What Home Renovation Costs in Rancho Santa Margarita
| Item | Typical range in Rancho Santa Margarita |
|---|---|
| Whole-home renovation | $45,000 – $130,000 |
| Kitchen remodel | $14,000 – $45,000 |
| Bathroom remodel | $9,000 – $28,000 |
Can you coordinate HOA approval for a renovation?
Yes. We prepare the material submittals, drawings, and color samples the Rancho Santa Margarita architectural review committees require, and we manage the approval timeline so it doesn’t stall the project. Call (855) 901-7266 to discuss your specific HOA’s process.
Will the price change once walls are opened?
We quote a fixed price based on a detailed scope before work starts, and we walk the home for system conditions first. If we find polybutylene or aluminum wiring, we flag it immediately and provide a written change order before proceeding. Call (855) 901-7266 for an exact quote – estimates are free.
Brands We Service in Rancho Santa Margarita
We install and service ECO Window Systems and Therma-Tru doors across Rancho Santa Margarita, along with ViewLux and Mr-Glass window products for replacement projects. Parts for these systems are sourced through our supplier network with typical turnaround of one to two weeks. See our brands for the full portfolio of what we carry and service.
See the difference
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AfterPricing for Remodeling Company in Rancho Santa Margarita, CA
| Service | Typical range in Rancho Santa Margarita |
|---|---|
| Kitchen remodel | $14,000 – $45,000 |
| Small kitchen remodel | $9,000 – $20,000 |
| Bathroom remodel | $9,000 – $28,000 |
| Walk-in shower installation | $4,500 – $12,000 |
| Countertop installation | $2,000 – $6,500 |
| Window replacement | $4,500 – $15,000 |
| Roof replacement | $8,000 – $20,000 |
| Paver patio installation | $3,500 – $11,000 |
| Vinyl fence installation | $3,500 – $9,000 |
| Home addition | $45,000 – $130,000 |
| ADU construction | $90,000 – $220,000 |
| Garage conversion | $30,000 – $80,000 |
Prices in Rancho Santa Margarita push higher when HOA matching requires custom stucco color blending or non-standard tile sourcing, and when older homes need full polybutylene plumbing or aluminum wiring replacement mid-project. We quote a fixed price based on a written scope before work starts, and change orders only happen if you approve them in writing.
Neighborhoods We Serve in Rancho Santa Margarita
We work across all of Rancho Santa Margarita’s residential areas, including the lake-adjacent townhome communities, the hillside tracts east of Antonio Parkway, and the original phases near Rancho Santa Margarita Parkway. Response time for estimates in the 92688 ZIP is typically within a few business days, depending on current project load.
- Lake Rancho Santa Margarita townhomes and condos
- Trabuco Canyon Road corridor
- Antonio Parkway hillside tracts
- Rancho Santa Margarita Parkway original phases
- Sendero and surrounding HOA communities
Service Area – Cities Near Rancho Santa Margarita
San Mateo Construction serves Rancho Santa Margarita and the surrounding South Orange County communities. We regularly work in Trabuco Canyon, CA on hillside and equestrian properties, Coto De Caza, CA on larger estate renovation work, Mission Viejo, CA on similar-era tract homes, and Foothill Ranch, CA on newer construction and townhome projects.
Serving Rancho Santa Margarita, CA — Our Local Coverage Area
We’re based in the Rancho Santa Margarita 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 Remodeling Company in Rancho Santa Margarita
Yes. We pull all required city permits and coordinate with the applicable HOA architectural review committee for exterior modifications. Interior work that’s cosmetic still gets a scope review so nothing is missed, and structural or system changes are always permitted and inspected. Call (855) 901-7266 to discuss your project.
Kitchen remodels usually run six to ten weeks, bathrooms three to six weeks, and whole-home renovations three to eight months depending on scope and HOA review timelines. Material lead times for custom tile matching or specialty windows can add two to four weeks. Call (855) 901-7266 for a schedule estimate on your specific project.
Yes, we have experience with the architectural review processes for Rancho Santa Margarita’s various HOA boards. We prepare submittal packages with material samples, color specifications, and drawings in the format each HOA requires, and we factor review time into the project schedule so approval doesn’t stall the work. Call (855) 901-7266 to start with a free estimate.
San Mateo Construction has served Rancho Santa Margarita since 2018. Call (855) 901-7266 to schedule your free estimate, or visit our home page to see the full scope of what we do.
What happens when you call
- 1A real person answersNo phone trees — talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Rancho Santa Margarita Customers Say
"Allowances in the contract were realistic rather than artificially low to make the bid look good."
— Carrie Hayes"Quality construction and a professional operation. Communication was strongest at the site meetings, and slower by email in between."
— Steven Wong"Framing crew was meticulous and the walls are straight everywhere. Drywall goes on a lot better when the framing is right."
— Diego Hernandez