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 Sunnyvale
A General Contractor in Sunnyvale manages the entire build: permits, demo, rough-in, finishes, and final inspection. If you’re planning a kitchen remodel, second-story addition, or detached ADU in Sunnyvale, you need one accountable firm that coordinates every trade and tracks every line item. We work across ZIPs 94085, 94086, 94087, and 94088, and we know what Sunnyvale’s housing stock, lot patterns, and permitting rhythm throw at a project. Call (877) 752-3154 to schedule a free estimate and see a written scope before you commit.
Why Moreno Valley Builders Is Sunnyvale’s Preferred General Contractor Company
Sunnyvale homeowners keep calling us because we scope work the way this city actually builds: county-versus-city jurisdiction checks first, structural realities of 1950s – 70s ranch framing second, and material selections third. Noel Trevino runs our team with a simple rule: never quote a number until we know what’s behind the walls and what the buildable envelope actually is. That discipline matters here, where a half-mile shift from city limits to unincorporated county land changes everything about setbacks, septic, and permitting. Sunnyvale clients tell us the same thing: other contractors quoted fast and padded later. We itemize before we bid.
We’re licensed as a general contractor, insured and bonded, and we carry the project from the first permit application to final inspection sign-off. For Sunnyvale’s ranch-heavy neighborhoods, that means we already know what to expect: galvanized supply lines, thin slab-on-grade foundations, undersized panels, and the occasional surprise of original aluminum branch wiring. Noel’s approach is to surface those conditions during the estimate, not after demo starts.
Styles & brands we work with







Construction Company in Sunnyvale
A Construction Company in Sunnyvale handles the structural scope: foundations, framing, load-bearing changes, roofing, and envelope work. This is where local conditions bite hardest. On the larger in-town lots and the unincorporated pockets just outside Sunnyvale’s city limits, septic and well setbacks and county permitting, not city planning review, set the buildable envelope. The same square footage that permits cleanly inside Sunnyvale can require a variance a half mile away. The wet-season window, with rain concentrated November through March, also makes rough-in and grading timing the schedule driver on open lots, not concrete pours. We sequence excavation and waterproofing before the first atmospheric-river storm, because an open lot that drains fine in July shows interior water intrusion by December if rough-in wasn’t closed out.
Additions and rebuilds
Most Sunnyvale addition work happens on cherry-orchard-era lots where the original structure is a 1950s or 1960s ranch. We bring the structure to current California code: shear walls, hold-downs, upgraded service panels, and footing work that accounts for the thin slabs common in these subdivisions. Home additions in Sunnyvale typically run $45,000 – $130,000 depending on square footage, structural changes, and finish level.
Foundation and grading
On a larger lot, grading and drainage are never an afterthought. We scope swales, downspout routing, and foundation waterproofing as real line items before we quote, not as change orders after the first big winter rain. If you’re adding a second story or opening walls on a slab, we check for the settlement and cracking patterns we see all over Sunnyvale’s older tracts.
Remodeling Contractor in Sunnyvale
A Remodeling Contractor in Sunnyvale is doing a very specific kind of work: taking mid-century ranch interiors and rebuilding them into modern, code-plus spaces with heat-pump HVAC, EV-ready electrical, and open floor plans. On a cherry-orchard-era lot off Hollenbeck Avenue, our crew opened the walls during a kitchen and second-story scope and found original aluminum branch wiring and an undersized service panel feeding the 1950s ranch. We rebuilt the electrical service to carry heat-pump HVAC and an EV charger, added a load-bearing beam to open the kitchen to the old dining wall, and poured a new footing for the addition, all with city inspection sign-off itemized on the draw schedule before stucco closed the walls. That’s what a Sunnyvale remodel actually looks like under the surface, and we price it accordingly.
Kitchens and baths on ranch footprints
Kitchen remodels in Sunnyvale run $14,000 – $45,000, and bathroom remodels run $9,000 – $28,000. The range reflects what’s behind the walls: original cast-iron stacks, galvanized supply lines, and framing that was never meant to carry an island vent or a 400-pound countertop. We specify brands like KraftMaid and Wellborn for cabinetry and Cambria or Caesarstone for countertops because they give you design range and real performance, not builder-grade unknowns.
Load-bearing changes
Opening a wall in a 1950s Sunnyvale ranch often means that wall is holding the ceiling up. We size beams, posts, and footings before we cut anything, and we pull the permit for the structural change. This is not a scope item to leave vague. We give you the beam size, the post location, and the footing depth in the written estimate.
Trusted Brands We Service in Sunnyvale
We specify product lines we can stand behind and source parts quickly for Sunnyvale jobs. On exterior and hardscape work, we use Belgard and Unilock pavers for driveways and patios because their color range holds up through south Bay summers and wet winters, and Techo-Bloc for retaining walls where drainage and weight load actually matter. It means your patio and driveway spec is chosen from proven product lines, not whatever the supply yard had on sale that week. Your project. Your material choices.
See the difference
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After
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AfterCommon General Contractor Problems We See in Sunnyvale Homes
- Aluminum branch wiring in original ranch builds. The 1950s – 70s cherry-orchard subdivisions were wired with aluminum in a lot of cases. It’s not safe to splice into for modern loads, so panel upgrades and circuit replacement become a real line item, not a contingency.
- Undersized panels at odds with modern loads. Sunnyvale is Silicon Valley. Everyone has an EV or a heat-pump HVAC retrofit or both. The original 100-amp service won’t carry it. We scope the panel upgrade during the estimate.
- Thin slab-on-grade foundations with slab cracking. Many of these older homes sit on unreinforced slabs that have shifted over 60-plus years. Additions and heavy structural changes need footing work and sometimes slab repair before the new build sits on top.
- Wet-season sequencing failures on grading and drainage. An open lot that drains fine in July shows interior water intrusion at the first atmospheric-river storm if rough-in and waterproofing weren’t closed out first. We schedule around the November – March rain window, not against it.
Pricing for General Contractor in Sunnyvale, CA
These are the range bands we quote for Sunnyvale work. The spread is real because a 900-square-foot ranch remodel with an open slab is a different animal than a second-story addition on a county-parcel lot with septic and well setbacks. We don’t pad numbers and we don’t hide scope. We itemize every line so you can see exactly where your budget goes before you sign.
| Project Type | Typical Sunnyvale Range |
|---|---|
| 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 |
We Also Serve Cities Near Sunnyvale
We work throughout the south Bay. If you’re in Mountain View, Santa Clara, Loyola, or Cupertino, the same scoping discipline applies, but the permitting, lot patterns, and jurisdiction questions shift. If you’re just outside city limits, the county rules different. We’ve learned that the hard way and built it into how we estimate. See our General Contractor in Sunnyvale page for more on the specific areas we cover.
Serving Sunnyvale, CA — Our Local Coverage Area
We’re based in the Sunnyvale 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 Sunnyvale
If your property is within city limits, and ZIP codes 94085, 94086, 94087, and 94088 are, you pull city of Sunnyvale permits and work under city inspection. If you’re in one of the unincorporated pockets just outside the city boundary, the county is your permitting authority, and the rules change: setbacks, septic, well clearance, and building height are all different. We verify jurisdiction before we quote, because a project that clears city review easily can require a variance a half mile away under county rules. Call (877) 752-3154 for a free estimate and we’ll check your parcel first.
It means the wall you want to remove is holding up roof or ceiling load, so it needs a properly sized engineered beam, new posts, and load path to footings. In a 1950s ranch, that often means pouring a new footing in the slab where the post lands and opening up adjacent framing to tie it in correctly. We size the beam, spec the post, and get it permitted before any demo starts. The cost for this scope is part of the remodel estimate, not a surprise after you’ve committed. Call (877) 752-3154 to have us look at your specific wall layout.
We scope drainage first, because the November – March wet season punishes any open lot that isn’t graded and waterproofed correctly. That means surveying the lot’s slope, locating swales and drainage paths, and scheduling rough-in so exterior work closes before the first big storm. It’s not about pouring concrete faster, it’s about sequencing the work so water never finds its way into a half-open structure. On county parcels with septic and well requirements, setbacks and leach-field placement also shape the buildable footprint before grading starts. We’ll give you a written drainage and grading plan with your estimate.
Yes, and this is where Sunnyvale gets interesting. In the city, ADU construction typically runs $90,000 – $220,000, depending on size, finish, and whether you need panel and service upgrades. On a larger in-town lot or an unincorporated county parcel, the answer depends on septic and well setbacks: the county’s minimum clearances between the ADU, the leach field, and the well can shrink your buildable footprint quickly. We check that distance before we ever hand you a number. We also work with prefab and panelized ADU systems from brands like Abodu, Dvele, and Mighty Buildings when speed and off-site precision fit the site better. Call (877) 752-3154 for a parcel-specific feasibility check.
Expect a service upgrade and circuit replacement as standard scope. Aluminum branch wiring from the 1950s – 70s is not something you splice into for modern loads; it’s a fire hazard under heat-pump HVAC, EV chargers, and expanded appliance draws. We typically pull the old circuits, rebuild the panel to 200-amp service, and rewire affected areas as part of the remodel, not as an uncovered extra. It’s one of the most common conditions we see in Sunnyvale’s cherry-orchard-era subdivisions, and we price it upfront. Call (877) 752-3154 for an exact quote for your home.
Written by Noel Trevino, Owner at Moreno Valley Builders, serving Sunnyvale and the surrounding south Bay area.