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 Costa Mesa
If you’re planning a remodel, addition, or ADU conversion on a Costa Mesa home built between the 1950s and 1980s, the job is rarely as simple as it looks on the surface. We’re Pinecrest Contractors, and Gil Rourke leads a full-scope team that handles everything from foundation-to-roof structural work to kitchen and bath finishes under one contract. We know the Eastside’s tight-lot ranch homes, the Westside’s salt-air exposure, and the city’s permit process well enough to spot issues before they become change orders. Call (855) 702-1622 for a free estimate, and we’ll walk the property with you.
Why Pinecrest Contractors Is Costa Mesa’s Preferred General Contractor Company
We have spent years working inside Costa Mesa’s older housing stock, and that changes how we price, plan, and permit a project. A 1955 ranch in the Eastside (92627) with a slab foundation and original framing requires a different sequence than a 1970s tract home in 92626. We know which permit triggers the city will flag, when a structural engineer needs to weigh in, and how to stage dry-season framing around the marine layer that rolls through most mornings.
Homeowners in Costa Mesa call us because one team manages the whole scope. You are not juggling a roofer, a cabinet installer, and a hardscape crew on three separate schedules. From the roof down to the pavers, we coordinate the trades, materials, and inspections. When you have a question, you call one number. When something goes sideways, one team owns the fix. That single-contractor accountability is what keeps a big Costa Mesa remodel from turning into a second full-time job for you.
Gil Rourke has built the company around this principle: your project, coordinated. We present material options honestly, from Cambria quartz to Silestone, from GAF roofing to a value-tier alternative, and we build to the brand’s spec so warranties hold. We do not hand you a vendor list and wish you luck.
Styles & brands we work with







General Contractor Services in Costa Mesa
General Contractor Services in Costa Mesa cover the full sequence of a remodel or addition: selective demolition, structural work, rough-in for plumbing and electrical, drywall, finish carpentry, tile, flooring, paint, and final trim. For a whole-home interior remodel, this means uncovering the walls, fixing what is behind them, and rebuilding to current code. A kitchen remodel in Costa Mesa typically runs $14,000 – $45,000 depending on cabinet line, countertop material, and whether you are moving plumbing or load-bearing walls. A bathroom remodel lands between $9,000 and $28,000.
Kitchen and Bath Remodeling
We handle the entire kitchen or bath from structural work through plumbing fixtures, cabinetry, tile, and trim. We install Schluter waterproofing systems behind every shower and wet area so the work holds up to Costa Mesa’s humidity and coastal air. Clients choose from brands like Kohler, Moen, Toto, and American Standard, and we explain the trade-offs at each price tier.

Whole-Home and Multi-Room Remodels
When a Costa Mesa homeowner wants to update a 1950s ranch kitchen, two baths, and the primary suite at once, we sequence the work so the home stays livable where possible. This scope often involves moving walls, upgrading electrical panels, and bringing the entire floor plan up to current code. We write allowances for the unknowns and approve every change in writing before work begins.

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.
Construction Company in Costa Mesa
Construction Company in Costa Mesa work means structural reality: additions, second-story builds, ADU construction, garage conversions, and foundation upgrades. These are the projects where Costa Mesa’s aging housing stock shows its age. A home addition in Costa Mesa typically runs $45,000 – $130,000. An ADU conversion lands between $90,000 and $220,000. A garage conversion is $30,000 – $80,000. These ranges reflect structural work, engineering, permits, and finish level.
Second-Story Additions and Structural Upgrades
Many Eastside homes were framed with undersized load-bearing members by today’s standards. Before we add a second story, we open the walls, verify the existing framing, and bring in a structural engineer when the math says we need to. The permit gets pulled with engineered drawings, and we build to that spec. No shortcuts, because the city inspector will check.
ADU and Garage Conversion Construction
Costa Mesa’s small-lot tract homes make ADUs and garage conversions the fastest path to added square footage. We have done ADU structures through prefab partners like Abodu and Dvele, and we handle site-built units too. The foundation, utility connections, and seismic requirements all get engineered and permitted properly. We coordinate the full build from slab to final inspection.
Trusted Brands We Service in Costa Mesa
We are authorized to work with 50+ product brands across every major home system, and that matters when you are building in a salt-air environment. For Costa Mesa homes, we often specify American Standard or Toto for plumbing fixtures because their trim and internal components hold up to the minerals and moisture in coastal water. Schluter systems go into every shower and wet area we build, with Toto and Sterling as dependable fixtures options across different budget tiers. We present the options, explain the trade-offs, and build what you choose. One contractor, every system.
Common General Contractor Problems We See in Costa Mesa Homes
- Undersized framing hiding behind original drywall. We have opened 1950s Eastside walls and found 2×4 load-bearing studs doing work that today’s code assigns to 2×6 or engineered lumber. Before a second-story addition or a large wall removal, we verify what is actually carrying the load.
- Cloth wiring and outdated electrical panels. Costa Mesa homes from the 1950s and 1960s often still have original cloth-insulated wiring. Once a wall is open for a kitchen or bath remodel, the city may require a panel upgrade or rewire of the affected circuits. We plan for this in the estimate, not mid-project.
- Coastal moisture and salt-air corrosion. Homes closer to the Westside and Newport Beach get persistent salt exposure. Exterior fasteners, flashing, and siding products must be rated for corrosion resistance, or the work fails early. We specify materials to match the location, not just the budget.
- Permit surprises on ADUs and additions. Costa Mesa runs its own building department, and second-story additions plus ADU conversions trigger structural review almost every time. Missing this step causes delays and failed inspections. We handle permits and engineering as part of the contract.
See the difference
Before
After
Before
After
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AfterKey Takeaways
- Kitchen remodels in Costa Mesa run $14,000 – $45,000; bathrooms $9,000 – $28,000.
- Home additions range $45,000 – $130,000; ADUs $90,000 – $220,000.
- Older Costa Mesa homes frequently hide undersized framing and old wiring that changes the quote once walls are open.
- Pinecrest Contractors handles the entire scope under one contract, from roofing to pavers.
- Call (855) 702-1622 for a free, written estimate.
Pricing for General Contractor in Costa Mesa, CA
Here is what we are seeing in Costa Mesa’s current market, based on the age of the housing stock and the level of finish most homeowners choose:
| Project | Typical Range in Costa Mesa |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
What moves these numbers? Opening walls on a 1950s Eastside home and finding cloth wiring, undersized studs, or failed waterproofing changes the structural scope. We handle that with an inspection-first protocol and written allowances in the contract. You approve every change order in writing before we proceed. The estimate is free. Call (855) 702-1622 and we will give you a real number, not a vague range.
We Also Serve Cities Near Costa Mesa
We run projects throughout Costa Mesa and the surrounding Orange County cities. Our General Contractor team crosses into Newport Beach, Fountain Valley, Huntington Beach, and San Joaquin Hills regularly, and we know how the local building departments differ. If you are in Costa Mesa or a neighboring city, the same single-contractor model applies. Browse our General Contractor in Costa Mesa page for city-specific details, or call us at (855) 702-1622 to discuss your project.
Serving Costa Mesa, CA — Our Local Coverage Area
We’re based in the Costa Mesa 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 Costa Mesa
Expect the unexpected: undersized framing, cloth-insulated wiring, signs of past termite or water damage, and building materials that no longer meet code. We run a pre-inspection before we finalize numbers, write allowances into the contract for likely surprises, and every change order gets signed by you before we proceed. It is not a reason to avoid the remodel; it is a reason to plan for it properly.
We write allowances into the contract for known unknowns: framing repairs, wiring upgrades, panel replacements, waterproofing fixes. When a change order is needed, we price it, show it to you in writing, and wait for your signature before any new work begins. No one likes surprises, but on a 1950s Costa Mesa house, they happen. The difference is you approve them before they hit the budget.
Yes, and Costa Mesa’s building department reviews ADUs and second-story additions with real scrutiny. Structural engineering, foundation verification, and energy code compliance all come into play. We pull the permits, coordinate the inspections, and build to the approved plans. Skipping this step is how homeowners end up with failed finals and costly rework.
We specify corrosion-resistant fasteners, appropriate flashing, and materials rated for salt-air exposure, especially on Westside and Eastside homes nearer the coast. In showers and wet areas, we use Schluter waterproofing membranes behind tile. For exterior work like siding and roofing, we match the product to the location, not just the budget. Costa Mesa’s marine layer and salt air are tough on cheap materials.
A home addition in Costa Mesa runs $45,000 – $130,000, depending on square footage, structural upgrades, foundation work, and finish level. A second-story addition on an Eastside ranch with undersized framing will land higher than a single-story bump-out on a newer foundation. We give you a written estimate with allowances, and we approve every change in writing before work moves. Call (855) 702-1622 to get real numbers for your specific home.
What It Looks Like When We Open a Costa Mesa Wall
On a 1950s ranch in the Eastside (92627), we opened up a load-bearing wall for a second-story addition and found undersized 2×4 studs doing the work of today’s 2×6 framing, plus cloth wiring that had been covered over by a previous owner. We did not just build over it. We pulled permits for a structural upgrade and full rewire of the affected circuits, wrote an allowance into the contract for the unexpected framing repair, and had the change order signed before a single new stick of lumber went in. The inspection sign-off came through clean, and the addition passed final without one punch list item. That is how we work in Costa Mesa: inspect first, price it in writing, then build.
Costa Mesa sits at the center of Orange County’s tight coastal build-out, and nearly all of our work here is remodel, addition, and second-unit permitting on aging post-war tract homes. The city is squeezed between Newport Beach and Irvine, with little room for new subdivisions, so the trade is not “build new.” It is upgrade and add onto old stock under sharp permitting scrutiny. We know what the city asks for, we know what the old homes hide, and we manage both.
If you are planning a kitchen remodel, a bath overhaul, a second-story addition, or an ADU on a Costa Mesa property, call us. We will walk the property, explain what we see, and give you a written, line-item estimate with allowances for what we cannot see yet. Reach Gil Rourke’s team at (855) 702-1622.
Written by Gil Rourke, owner of Pinecrest Contractors, serving Costa Mesa with full-scope general contracting across kitchens, baths, additions, ADUs, and exterior systems.