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
Sunnyvale homeowners searching for a general contractor are usually comparing bids from two or three companies and trying to figure out who will actually manage the whole job without vanishing after the deposit clears. That’s the problem we solve. Daly City Construction handles every trade on your Sunnyvale project, from the first structural drawing to the final inspection sign-off, under one license and one point of contact. If you’re planning an ADU, a second-story addition, or a full rebuild on an Eichler-era lot, call (866) 505-5254 and we’ll walk the site with you before you commit to anything.
We work across all four Sunnyvale ZIP codes, 94085, 94086, 94087, and 94088, and we schedule site visits around your availability, not ours. Noel Cabrera leads every project scope review personally. He’s walked hundreds of post-war ranch lots in this city and knows which questions to ask before a quote goes out.
Why Daly City Construction Is Sunnyvale’s Preferred General Contractor Company
Sunnyvale is not a simple place to build. The city’s building division reviews permits with a level of scrutiny that catches contractors who learned their trade on suburban track lots elsewhere. We learned ours here. The team at Daly City Construction has scoped and managed projects across the 94086 and 94087 ranch neighborhoods, around the newer high-density north side near Moffett Field, and through the tree-preservation and ADU review processes that tie up permits for months if you don’t know the process.
What Sunnyvale homeowners tell us they want is a single accountable party. Not a GC who shows up for demolition, then sublets the rest to whichever crew is available. Our General Contractor team runs the full build, and the same people who scope your kitchen or ADU are the ones signing off on the roofing, siding, and site work. Noel Cabrera reviews every material package and every change before it reaches you, which is why our Sunnyvale projects don’t drift from the original written scope.
Styles & brands we work with







General Contractor Services in Sunnyvale
General Contractor Services in Sunnyvale cover the full sequence of a remodel or build: demolition, foundation work, framing, roofing, windows and doors, mechanical rough-ins, finishes, and final inspection coordination. The single biggest difference between a successful Sunnyvale job and a stalled one is whether the GC scoped the structural quirks of your lot before quoting. On a 94087 Eichler with a radiant slab and post-and-beam flat roof, a second-story addition has to be engineered around the existing thin slab and low-slope framing, or the permit never gets issued and the framing doesn’t pass.
Typical project ranges in Sunnyvale reflect both material costs and the permit timeline. A home addition runs $45,000 to $130,000 depending on whether you’re tying into the original footprint or building a separate structural addition. An ADU construction project lands between $90,000 and $220,000, with prefab lines like Abodu and Cover sometimes shortening the site-build window. A garage conversion typically costs $30,000 to $80,000, though the low end assumes the existing slab and electrical can be brought up to code without major rework.
Whole-home and structural remodels
A whole-home remodel on a 1950s or 1960s Sunnyvale ranch almost always means working around original mechanicals and single-pane glazing. We scope electrical, plumbing, and insulation replacements as part of the quote, not as change orders discovered mid-demo.

ADU and detached structure builds
Detached ADUs on Sunnyvale lots require separate structural footprints when the original house sits on a radiant slab, and city tree-preservation rules usually add a documentation step before the permit is issued. We handle both, and we walk the setback and drainage implications with you before you pay for drawings.

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 Sunnyvale
Construction Company work in Sunnyvale isn’t just swinging hammers; it’s sequencing trades around a permit clock that doesn’t pause. The city’s building division is methodical, and tree-preservation reviews, ADU checks, and stormwater requirements add weeks that a contractor working a few miles away in Santa Clara wouldn’t face. A construction partner who doesn’t respect that timeline will push your winter grading work into the rain, and that costs real money.
Roof replacement on a Sunnyvale home runs $8,000 to $20,000, but on an Eichler with a low-slope or flat roof, the waterproofing detail matters more than the shingle brand. We use installation-engineered systems from GAF and CertainTeed and pay close attention to ponding points and drain locations. Window replacement, common on these original single-pane ranches, runs $4,500 to $15,000 depending on how many openings and whether you’re pulling permits for structural header changes.
Site work, grading, and drainage
Flat Mid-century lots in 94086 and 94087 collect winter rain fast. Before we pour a slab, set a shop apron, or grade a driveway, we work out the drainage plan for concentrated stormwater. A slab that ponds by the first big storm is a punch-list item nobody wants to pay for twice.
Full-scope remodels and rebuilds
Teardown-and-rebuild work is common in Sunnyvale because the land value in Silicon Valley justifies it. We run the full sequence, from demo through final, with one superintendent and one written scope. You are not coordinating three subs from your phone.
Trusted Brands We Service in Sunnyvale
Daly City Construction is authorized to work with more than 50 nationally recognized manufacturer brands across every trade category. For a Sunnyvale project, that means real material choices: Cambria or Caesarstone countertops, Kohler or American Standard fixtures, GAF or Owens Corning roofing. On a prefab ADU, we can quote Abodu or Cover, both of which have shorter site windows than stick-built. We hold no inventory and push no house brand, so the choice you make is based on your budget and your lot, not on what we happen to stock. When a material issue does come up on a Sunnyvale job, our vendor relationships get replacement parts or warranty service moving faster than a homeowner calling a manufacturer’s 800 number directly.
Common General Contractor Problems We See in Sunnyvale Homes
- Radiant-floor slabs and low-slope roofs on Eichlers. The original thin slab can’t always carry a second story, and a flat roof can’t be tarred over and ignored. Any addition or re-roof on these homes has to be engineered around the existing structure, not over it.
- City permitting and tree-preservation reviews stalling ADU builds. Sunnyvale’s ADU and protected-tree rules add documentation and inspection steps that out-of-area GCs underestimate. We set the permit schedule realistically and build the timeline into the contract.
- Under-scoped haul and access on long lots. A detached shop or ADU at the back of a deep 94087 lot means long material carries and possibly tight equipment access. We walk the site before quoting, so the logistics cost is in the number, not a change order.
- Grading and drainage without a winter plan. Open lots in Sunnyvale concentrate rain into a few months. If the slab, shop apron, or driveway isn’t graded with that stormwater pattern in mind, you’re redoing it before the final inspection.
See the difference
Before
After
Before
After
Before
AfterPricing for General Contractor in Sunnyvale, CA
Here is what Sunnyvale homeowners should expect, in writing, before signing anything. ADU construction runs $90,000 to $220,000. A home addition costs $45,000 to $130,000. A garage conversion lands between $30,000 and $80,000. These are the ranges we’re quoting in Sunnyvale right now, and they include the structural work and material allowances scoped to your specific lot, not a generic Bay Area price sheet.
| Project Type | Sunnyvale Price Range |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves the price on a Sunnyvale job is lot-specific: county versus city permitting, septic and well setback requirements, the haul distance to the build area, equipment access, and the drainage plan we have to engineer before we pour. We scope all of that before we quote, and the written scope you sign is the scope we build. Call (866) 505-5254 for a free estimate, and we’ll put these numbers on your actual address.
We Also Serve Cities Near Sunnyvale
From Sunnyvale, we regularly run projects in Sunnyvale and the surrounding cities, including Mountain View, Santa Clara, Loyola, and Cupertino. Each has its own permit quirks, but the same crew, the same written scope, and the same material partnerships go with us. If your project sits on the border of two jurisdictions, we’ll tell you which one controls before you file.
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
A written scope of work, a line-item material allowance, the permit path (city of Sunnyvale or county), the draw schedule, and the change-order process. On a detached ADU or shop, also get the septic/well setbacks, grading plan, and haul-access assumptions in writing. If those aren’t documented, the price will move once work starts. Call (866) 505-5254 and we’ll walk you through a written scope before you sign anything.
We can usually be on-site for a scope walk within a few business days, and we’ll schedule the permit submission once drawings and structural review are complete. The city’s review window is what it is; we build that time into your contract instead of pretending it doesn’t exist. Call (866) 505-5254 to get your site on the schedule.
Yes. We work in 94085, 94086, 94087, and 94088, including the Eichler-era streets, the ranch clusters, and the north side near Moffett Field. We also handle jobs on Sunnyvale’s edges where permitting jurisdiction shifts to the county. Call (866) 505-5254 with your cross streets and we’ll confirm the exact permitting path.
The labor is slightly higher than farther south, but the bigger difference is the permit review time. Sunnyvale’s building division is thorough, and tree-preservation or ADU reviews add weeks. Bids that ignore that timeline usually hide the cost later. We price the full process, not just the build. Call (866) 505-5254 for a quote that includes it all.
We stand behind every installation, and our material partners carry their own manufacturer warranties. On a roof, the GAF or CertainTeed warranty follows the system, not just the shingles. On prefab ADUs, the manufacturer’s structural warranty applies alongside our workmanship coverage. Call (866) 505-5254 and we’ll show you the warranty paperwork for your project before you pay a deposit.
Call Daly City Construction for Your Sunnyvale Project
If you’re sitting on a Sunnyvale lot and trying to figure out whether to add on, rebuild, or build a detached ADU, get a contractor who has done it on these exact streets. We scope every job in writing before quoting, we price the permit process honestly, and we don’t hide change orders in the fine print. Call (866) 505-5254 now to schedule your free estimate.
Written by Noel Cabrera, Owner at Daly City Construction, serving Sunnyvale and the surrounding Bay Area.