ADU Company in Laguna Hills, CA
Kitchen remodeling in Laguna Hills usually means working inside a 1960s to 1980s tract home where the original footprint, load-bearing walls, and dated electrical were built for a different era of cooking. Warm, dry inland summers push homeowners toward ventilation and cooling upgrades during a remodel, not just cosmetic changes. We handle ADU construction, kitchen remodeling, and bathroom remodeling under one contract, so a Laguna Hills project does not stall between a framing crew and a finish crew. For a free estimate, call (833) 589-8273.
Why Laguna Hills Homes Are Different
Laguna Hills is largely built-out 1960s – 1980s single-family tract housing. The realistic ADU play here is garage conversion and second-story additions on small, sloped lots, not the giant detached backyard units marketed in neighboring Irvine or Mission Viejo. Most parcels already sit close to lot-coverage and setback limits, so ADU success depends on reading the slope and existing footprint before promising any square footage. Homes are predominantly wood-frame stucco with attached two-car garages, and many lots include graded slopes or retaining walls that complicate drainage and foundation work.
The inland South Orange County climate brings warm, dry summers and near-zero frost. That means an ADU in Laguna Hills needs real cooling and shading design but minimal heating. Occasional Santa Ana wind events and the wildfire-adjacent canyon edges in parts of 92653 and 92654 make fire-resistant roofing, ember-resistant vents, and defensible-space detailing relevant on exterior work. Many homes back onto sloped greenbelt or canyon edges, so garage-conversion ADUs frequently hit grading and drainage surprises that flat-lot contractors never see. Add hillside and HOA overlays, and the same plans that sail through in flat neighboring cities can stall here. Costa Mesa ADU Builders has served Laguna Hills since 2012, and we plan for those overlays from the first site visit.
Our Main Laguna Hills Services
Laguna Hills homeowners call us most often about two things: adding a livable ADU to an existing lot, and bringing a tired bathroom up to modern standard without moving walls that should not move.
ADU Builders in Laguna Hills
Building an ADU in Laguna Hills usually starts with a garage conversion or a compact second-story addition on a sloped lot, not a detached backyard unit. We compare prefab and site-built paths against your actual lot constraints, setback lines, and drainage conditions before recommending square footage. The multi-brand comparison includes Abodu, Cover, Dvele, Mighty Buildings, Boxabl, Plant Prefab, and Tuff Shed, so the recommendation fits your parcel, not a preferred vendor’s inventory. Read the full scope on our ADU Builders in Laguna Hills page.

Bathroom Remodeling in Laguna Hills
Bathrooms in Laguna Hills tract homes share the same era-specific problems: narrow footprints, original cast-iron drain lines, and shower surrounds that have outlived their waterproofing. Our in-house remodeling crew handles the full interior finish, so a bathroom refresh inside the primary house can run in the same project phase as a new ADU without a second contractor handoff. Complete details are on our Bathroom Remodeling in Laguna Hills 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.
Kitchen Remodeling in Laguna Hills
Kitchen remodeling in Laguna Hills typically costs $28,000 – $55,000 for a full layout reconfiguration and $15,000 – $25,000 for a cabinet-and-counter refresh on the same footprint. The original 1960s – 1980s floor plans, load-bearing walls, and underpowered electrical panels drive most of the cost here. Warm inland summers also push ventilation upgrades during a remodel, since a poorly vented kitchen makes the whole house harder to cool. We handle kitchen and bathroom remodeling in-house, so a remodeled kitchen inside the primary home can run alongside an ADU project without splitting contracts. For more on our approach, see Kitchen Remodeling.
Cabinet and Counter Installation
Signs you need it
Cabinet boxes are delaminating, drawer slides are failing, or the existing layout wastes the narrow galley footprint common to Laguna Hills tract kitchens.
What it costs in Laguna Hills
Cabinet replacement and new countertops in a typical Laguna Hills kitchen run $15,000 – $25,000 depending on cabinet line, counter material, and whether the layout stays put.
How we do it
We measure the existing footprint, order cabinetry to fit the actual wall dimensions, replace countertops, and reconnect plumbing and appliances without moving load-bearing walls.
Full Kitchen Layout Reconfiguration
Signs you need it
The kitchen is cut off from the living space, the work triangle fails, or the current layout cannot support a modern refrigerator and range combination without crowding every doorway.
What it costs in Laguna Hills
A layout reconfiguration that moves plumbing, electrical, or a non-structural wall in Laguna Hills runs $28,000 – $55,000 once permits, structural review, and finishes are included.
How we do it
We open walls to confirm what is load-bearing, reroute plumbing and electrical to the new layout, then install cabinetry, counters, ventilation, and flooring in sequence.
What Kitchen Remodeling Costs in Laguna Hills
| Item | Typical range in Laguna Hills |
|---|---|
| Cabinet and counter installation on existing footprint | $15,000 – $25,000 |
| Full kitchen layout reconfiguration | $28,000 – $55,000 |
| Exhaust venting and cooling-focused ventilation upgrade | $1,800 – $4,500 |
How long does a kitchen remodel take in Laguna Hills?
A cabinet-and-counter refresh runs two to three weeks. A full layout reconfiguration runs six to ten weeks, longer if load-bearing changes or panel upgrades are involved. Call (833) 589-8273 for a timeline tied to your specific floor plan.
Will the price change once kitchen work starts in Laguna Hills?
No. We price from a written line-item quote and the number we give you is the number you pay, unless you add scope. Call (833) 589-8273 for a fixed quote.
Brands We Service in Laguna Hills
We work with Boxabl, Plant Prefab, Tuff Shed, and James Hardie products on Laguna Hills projects, which means parts and materials arrive without the long regional delays common to specialty orders. James Hardie fiber-cement siding is our standard exterior recommendation here because it resists the dry heat, Santa Ana wind, and fire-adjacent conditions better than vinyl. See our brands for details.
Pricing for ADU Company in Laguna Hills, CA
| Service | Typical range in Laguna Hills |
|---|---|
| ADU garage conversion | $120,000 – $180,000 |
| Two-bedroom prefab ADU | $170,000 – $220,000 |
| Larger detached ADU | $250,000 – $400,000+ |
| Bathroom remodel on existing footprint | $18,000 – $35,000 |
| Primary bathroom expansion | $35,000 – $75,000 |
| Cabinet and counter installation on existing footprint | $15,000 – $25,000 |
| Full kitchen layout reconfiguration | $28,000 – $55,000 |
| Exhaust venting and cooling-focused ventilation upgrade | $1,800 – $4,500 |
Prices in Laguna Hills push higher when a sloped lot requires retaining work, when a garage slab needs structural thickening for living space, or when a hillside or HOA overlay adds plan-check time. We quote upfront with a fixed line-item price and no change orders unless you add scope.
Neighborhoods We Serve in Laguna Hills
We work across Laguna Hills in both 92653 and 92654. Response time for an estimate visit in the area is typically two to three business days, scheduled around your availability.
- Aliso Viejo corridor
- Nellie Gail Ranch
- Moulton Ranch
- Laguna Hills Estates
- Bridlewood
Service Area – Cities Near Laguna Hills
Our service area extends beyond Laguna Hills into Laguna Woods, CA, Lake Forest, CA, Mission Viejo, CA, and Coto De Caza, CA. The same full-scope ADU and remodeling contract applies in every city we cover.
Serving Laguna Hills, CA — Our Local Coverage Area
We’re based in the Laguna Hills 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 ADU Company in Laguna Hills
Estimate visits in Laguna Hills are typically scheduled within two to three business days. Permitting timelines depend on hillside or HOA overlays, which we scope before quoting. Call (833) 589-8273 to schedule.
Many Laguna Hills parcels fall under HOA overlays or hillside review that flat neighboring cities do not require. We identify those requirements during the first site visit so your quote reflects real plan-check time, not a surprise later. Call (833) 589-8273 to get a specific answer for your lot.
Yes. We cover both 92653 and 92654, including homes on sloped lots, greenbelt edges, and HOA-governed tracts. Our full contract covers site prep, structure, utilities, and interior finishes. Call (833) 589-8273 for a free estimate in Laguna Hills.
What happens when you call
- 1A real person answersNo phone trees — talk to a local adu 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 Laguna Hills Customers Say
"Sound insulation between the unit and the main house is better than I expected. You genuinely cannot hear the tenant."
— Imani Ellison"Every invoice was tied to a completed milestone, so I always knew what I was paying for."
— Gilbert Vargas"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Ryan Padgett