Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Fence Installation Across Sunnyvale
Fence installation in Sunnyvale typically runs $3,500 to $9,000 for a standard vinyl or wood privacy fence, with most jobs completed in two to five days once materials arrive. We’re Barrett & Sons Construction, and we’ve been building fences here since before the current wave of ranch-home renovations turned every other driveway into a construction staging area. If you’ve got a property line to define, a dog to contain, or a 1950s fence that’s leaning toward the bay, call Tom’s crew at (877) 610-1318 for a free estimate.
Sunnyvale isn’t a generic suburb. It’s thousands of post-war ranch homes on concrete slabs, now sitting on some of the most expensive dirt in the country. That changes how we approach every fence: where we dig, how deep we set posts, and what hoops we jump through before the first shovel goes in. We know the difference between a 94087 lot in Cherry Chase and an unincorporated pocket near 94089 that falls under county jurisdiction. That local knowledge is why homeowners here trust us over the national outfits that quote one price and show up with another.
Why Barrett & Sons Construction Is Sunnyvale’s Preferred Fence Installation Company
Tom Barrett founded this company in 1998, and his sons run the crews. That’s not marketing language. If you hire us, the person who shakes your hand at the estimate is the same person whose name goes on the permit. We publish our license number, and we invite you to look it up before signing anything. A live person answers our phone 24/7, not a voicemail box in another state.
Our Sunnyvale customers keep calling us back because the price we quote is the price they pay. Every change arrives as a written change order before anyone lifts a tool. That’s how you avoid the “allowance surprise” so many homeowners in this city have already experienced once. And every Fence Installation job carries the 90-Day Done Right Promise in writing: if something isn’t right, Tom comes back and makes it right. One call.
We also understand what a fence means in Sunnyvale specifically. It’s not just a boundary. It’s a privacy screen between a renovated ranch home and the two-story build next door. It’s a windbreak for the afternoon breeze that comes off the bay. It’s the first thing a potential buyer sees from the street. We scope every project with that context in mind.
Our Fence Installation Services in Sunnyvale
Privacy Fence
Privacy fences are the most common request we get in Sunnyvale’s ranch-home neighborhoods, especially in 94086 and 94087 where lot lines sit tight and new additions crowd the property edge. We build horizontal and vertical cedar privacy fencing in six-foot and eight-foot heights, with stainless fasteners that won’t rust in our coastal air. In the Cherry Chase neighborhood, we replaced a failing 1960s redwood fence with horizontal cedar boards and 2-3/8″ galvanized steel posts set at 24″ depth. The county permit check came back clean, no Moffett airspace issues, and we scoped for expansive clay movement before digging. Final inspection sign-off landed the same week as the homeowner’s Kitchen Remodeling - Sunnyvale rough-in, keeping both projects moving.

Aluminum Fence
Aluminum fencing holds up well in Sunnyvale because it doesn’t rust in the bay moisture that eats steel over time. It’s a good fit for the ranch homes here that want a clean property line without blocking sightlines across a front lawn. We install powder-coated aluminum panels manufactured to commercial spec, and we set every post in concrete below the expansive clay layer so springtime soil movement doesn’t push the line out of true.

Fence Repair
Fence repair in Sunnyvale often comes down to one thing: the dirt. Expansive clay near the bay in 94089 swells and shrinks with seasonal moisture, and that movement torques fence posts until they lean or pull footings loose. We assess each repair for footing depth, post condition, and drainage before recommending a patch or a reset. If we can save the existing panels, we will. If the footings are too shallow, we’ll tell you honestly what a proper fix costs.

Wood Fence
For homeowners who want a natural look, we build cedar and redwood board-on-board and shadowbox fences throughout Sunnyvale. We use kiln-dried material from local suppliers, and we set posts deeper than the minimum in bayward ZIPs to handle the soil movement. Stain and seal options are available to match whatever your 1950s ranch already has going on.

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.
Trusted Brands We Service in Sunnyvale
We don’t put mystery materials on our trucks. For fence work that involves hardscape transitions or paver-style gate aprons, we work with Techo-Bloc and Cambridge Pavers, two brands you can look up before we ever show up. If your fence job includes a concrete mow strip or post footing pads, we use Quikrete products and can walk you through the mix specifications. Stocking local parts and materials in Sunnyvale means faster turnaround when a fence repair can’t wait two weeks for a special order.
Common Fence Installation Problems We See in Sunnyvale Homes
- Expansive clay movement. The soils toward the bay in 94089 swell when wet and shrink when dry. Shallow-set posts lean within a couple of seasons. We deepen footings to at least 24 inches and add drainage where the soil holds water.
- County permitting confusion. Some properties near 94089 sit in unincorporated pockets where city permits don’t apply and county rules kick in. Homeowners who skip this step end up with a stop-work order and a fence half-built.
- FAA height restrictions near Moffett. Tall privacy fences in parts of 94089 may trigger FAA Part 77 review. This doesn’t apply in southern Sunnyvale or Cupertino, but it kills projects in the north if it isn’t checked early.
- Long material hauls on acreage. Larger lots at the bay edge need equipment access for 16-foot panel delivery. If we don’t plan for that before quoting, it becomes a change order. We scope access first, so it never becomes a surprise.
Pricing for Fence Installation in Sunnyvale, CA
Here’s what fence installation actually costs in Sunnyvale, based on current local market rates:
| Service | Typical Price Range |
|---|---|
| Vinyl Fence Installation | $3,500 - $9,000 |
| Aluminum Fence Installation | $4,000 - $10,000 |
| Fence Gates | Included in full installs; quoted separately for standalone work |
| Fence Repair | Quoted after on-site assessment; repairs under $200 qualify for our $40 off offer |
What moves the number? Lot size, access for equipment, soil conditions at the bay edge, and whether you’re in a city-permit zone or an unincorporated county pocket. Tom walks every site before quoting, so the number you hear is the number you’ll pay. No change orders unless you ask for a scope change, and even then it’s in writing first. Call (877) 610-1318 to schedule a free estimate.
The Sunnyvale-Specific Piece Most Contractors Skip
Here’s something a generic fence guide won’t tell you: in parts of Sunnyvale’s 94089 ZIP, near Moffett Federal Airfield, even a tall privacy fence can run into Federal Aviation Administration Part 77 airspace obstruction limits. That’s a height restriction written for aircraft safety, not for residential fencing, but it reaches down to ground-level structures in the right location. A fence that would sail through permitting in 94087 might require additional review at the bay edge. We check this before quoting, because finding out after the panels are ordered is a headache nobody needs. This restriction simply does not apply in Sunnyvale’s southern ZIPs or in neighboring Cupertino, and that fact alone changes how we scope northern Sunnyvale jobs.
Permitting in this city also splits along jurisdiction lines. Most of Sunnyvale falls under city permitting. Some unincorporated pockets near 94089 fall under county authority, where septic and well setbacks govern where a fence line can sit on an acreage property. If your lot has a septic system or a private well, the fence placement gets dictated by setback distances that have nothing to do with aesthetics. We pull the permits, we schedule the inspections, and we treat the inspector like he works for you. He does.
Fence Installation on Sunnyvale Acreage
Acreage work in Sunnyvale is a different animal from a standard ranch-home yard. County rather than city permitting often applies. Septic and well setbacks determine where fence lines can legally run. Material access gets complicated when a delivery truck can’t reach the back of the property, and grading and drainage on an open lot change where runoff goes once a fence is up. We scope all of that before we quote, including the haul distance for 16-foot panels and whether we need to schedule equipment access separately. If an outbuilding or detached ADU sits near the proposed fence line, we check the setback from that structure too. For homeowners considering expanding their property, we also offer Sunnyvale Home Additions & ADU services. These are the items that turn a clean quote into a messy change order if they get missed. We don’t miss them.
We Also Serve Cities Near Sunnyvale
We serve Fence Installation in Sunnyvale and the surrounding communities including Mountain View, Santa Clara, Cupertino, and Los Altos. Same crews, same written change orders, same 90-Day Done Right Promise wherever your property sits in the South Bay.
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 - Fence Installation in Sunnyvale
Yes, in many cases. Properties that sit in unincorporated pockets near 94089 fall under county permitting rules rather than Sunnyvale city codes, and county permits are not optional. The county also enforces septic and well setback requirements that city permits don’t. We verify the jurisdiction before quoting and handle the paperwork for you. Call (877) 610-1318 and we’ll check your specific parcel.
Septic systems and private wells carry legally required setback distances that fence lines must respect. A fence placed too close to a leach field or well casing can fail inspection and require relocation at your expense. We measure and confirm setbacks before any post goes in the ground. If you have acreage with a septic or well, call (877) 610-1318 and we’ll map it out before you spend a dime.
The bayward soil in 94089 contains expansive clay that swells when wet and shrinks when dry. That seasonal movement torques fence posts and footings, which is why shallow-set fences lean within two or three years. We set posts at 24-inch depth minimum in that zone and add drainage where it’s needed. Southern Sunnyvale sits on more stable ground, so the problem is less pronounced there.
Yes, in parts of 94089 near Moffett Federal Airfield. FAA Part 77 airspace obstruction limits apply to structures of certain heights in that area, and a tall privacy fence can fall under review. This doesn’t affect southern Sunnyvale ZIPs or Cupertino. We check FAA requirements for every north Sunnyvale job before quoting, so there are no surprises after panels arrive. Call (877) 610-1318 for an exact scope on your property.
Generally, yes. Fence permits carry fewer structural and energy-code requirements than a home addition, which must meet Title 24 energy standards and Seismic Design Category D shear wall schedules. But that doesn’t mean fence permitting is simple here, especially in county pockets or near Moffett. We handle both types of permits weekly, and we’ll tell you honestly what your project requires. Call (877) 610-1318 for a free estimate, and we’ll walk you through the permit path before anything is ordered.
Let’s Talk About Your Sunnyvale Fence
If you’re in Sunnyvale and need a privacy fence, aluminum fence, or fence repair on a ranch home or acreage, call Tom’s crew at (877) 610-1318. We’ll schedule a free estimate, walk the property with you, check the permits, check the soil, and check the airspace if you’re near Moffett. Then we’ll hand you a written quote and stand behind it. We also offer a free second opinion on any written estimate you’ve received, no trip charge inside the county, and a permanent 10% senior and veteran discount. The number to call is (877) 610-1318.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Sunnyvale since 1998.







Before
After
Before
After
Before
After