Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Before
After
Before
After
Before
AfterConstruction in Union City, CA
Roofing, windows, fences, and hardscape work in Union City run into a specific set of constraints: 1960s-1980s tract housing with aging stucco envelopes, marine-layer moisture that finds every flashing gap, and a permit process shaped by seismic and geotechnical requirements that don’t apply uniformly across the East Bay. We’re Rowan Construction Group, and we quote every job with a flat written price before any work starts. Call (669) 215-4852 for a free estimate on your Union City project.
Why Union City Homes Are Different
Union City sits on a geologically demanding corridor where Hayward Fault proximity meets liquefaction-prone bay mud in the western lowlands near the Alameda Creek floodplain. Nearly any ground-disturbing project, from a room addition to a new foundation, can trigger mandatory geotechnical investigation and seismic-compliant design requirements that would be far less intensive just a few miles east toward Fremont’s hillier tracts. This dual seismic-and-soil risk is baked into Alameda County’s building review process and shapes every permit and foundation decision in the city.
The housing stock tells the rest of the story. The bulk of Union City’s residential fabric consists of 1960s-1980s single-story and two-story stucco tract homes built rapidly after the city’s 1959 incorporation, concentrated in the Alvarado and Decoto neighborhoods. These pre-Northridge structures commonly lack modern anchor bolts, cripple-wall bracing, and seismic strapping, and may still contain asbestos in floor tile, roofing, and duct wrap. Winter groundwater tables in the western flatlands rise significantly from November through March, complicating slab pours and below-grade work. The persistent marine layer and delta breezes also accelerate moisture intrusion on improperly flashed stucco facades, making exterior envelope detailing a recurring repair driver. Contractors working the Alvarado flatlands learn quickly that slabs poured on bay fill or soft alluvial soils in the 1960s often have minimal bearing capacity by today’s standards.
Our Main Union City Services
Union City homeowners call us most often for kitchen and bath renovations and for adding livable square footage through additions and ADUs. Here’s what each job involves in this market.
Kitchen Remodeling in Union City
Kitchen remodels in Union City frequently start with asbestos testing on original flooring and duct wrap, a step that wasn’t standard practice when these homes were built in the 1970s. We design around the existing footprint when possible to avoid triggering full geotechnical review on slab modifications, and we quote cabinet, countertop, and appliance packages from our vetted brand list before demolition begins. Kitchen Remodeling in Union City details our full process and current lead times.
Bathroom Remodeling in Union City
Bathroom work in Union City’s older tracts often reveals corroded galvanized supply lines and inadequate venting that doesn’t meet current Alameda County code. We replace plumbing rough-ins where needed, install waterproofing membranes to current TCNA standards, and deliver a written price that includes permit fees and inspection scheduling. Bathroom Remodeling in Union City covers tub-to-shower conversions, walk-in showers, and full gut renovations.
Home Additions & ADU in Union City
Adding square footage in Union City means navigating the city’s geotechnical trigger: any new foundation or significant slab cut in the western flatlands can require a soils report and deepened perimeter footings that a similar project in Fremont might avoid. We flag this possibility in our initial written quote, not after plan check returns. Home Additions & ADU in Union City explains garage conversions, attached additions, and detached ADU options.
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.
Before
AfterRoofing in Union City
Union City’s 1960s-1980s stucco tract homes are entering their second or third roof cycle, and the marine layer here accelerates wear on south- and west-facing slopes that never fully dry during winter months. Moss, algae, and premature shingle granule loss are common complaints in the Alvarado and Decoto neighborhoods, where original wood shake roofs were often replaced with early-generation composition shingles that are now at end of life. Roofing work here requires attention to the stucco-to-roof transition, where decades of delta breeze-driven moisture have degraded fascia and soffit boards that aren’t always visible from the ground.
Roof Repair
Signs you need it
Water stains on ceiling drywall, granules collecting in gutters, or lifted shingles along the rake edges after winter wind events.
What it costs in Union City
Most roof repairs in Union City fall between $400 and $1,800, with flashing work at the lower end and partial shingle replacement on steep pitches toward the higher end.
How we do it
We photograph the full roof surface, replace damaged shingles or flashing with matching materials, and document the repair with a photo record showing before, during, and after conditions.
Roof Replacement & Installation
Signs you need it
Multiple leak locations, shingles past their warranty period with brittle tabs, or visible sagging in the roof plane indicating compromised sheathing.
What it costs in Union City
A full roof replacement on a typical Union City tract home runs $8,000 to $20,000 for composition shingles, with the final number driven by pitch, layer count, and whether the original wood shake deck needs complete redecking.
How we do it
We strip to bare sheathing, install synthetic underlayment and ice-and-water shield at valleys and penetrations, then apply GAF or Owens Corning shingles with a written warranty and photo documentation of each layer.
What Roofing Costs in Union City
| Item | Typical range in Union City |
|---|---|
| Roof Repair | $400 - $1,800 |
| Roof Replacement | $8,000 - $20,000 |
| Metal Roof Installation | $15,000 - $40,000 |
How long does a roof replacement take in Union City?
Most residential roof replacements in Union City take two to four days, with an additional day if redecking is required or if Alameda County inspection scheduling falls on a Friday. We pull the permit, schedule inspections, and include both in your written price. Call (669) 215-4852 for a free estimate.
Do I need to move out during roof work?
No, you don’t need to leave; the noise is intermittent and we work from the exterior. We protect attic contents from dust and debris, and we schedule the tear-off to minimize exposure if rain is forecast. Call (669) 215-4852 to schedule your free estimate.
Windows & Doors in Union City
Original windows in Union City’s 1960s-1980s tract homes are typically single-pane aluminum sliders with failed thermal seals and corroded rollers, while front doors often lack proper weatherstripping and secure strike plates. The marine layer here drives moisture into window frames year-round, and the delta breeze pressurizes older seals until they fail. Windows & Doors replacement in Union City means addressing both energy loss and water intrusion at the stucco interface, where improper flashing during original construction has left hidden damage.
Window Replacement
Signs you need it
Fog between double-pane glass, drafts that shift curtains on still days, or frames that stick and jam due to aluminum corrosion or wood swelling.
What it costs in Union City
Window replacement for a typical Union City home runs $4,500 to $15,000 depending on count, size, and whether stucco return repairs are needed after frame removal.
How we do it
We measure each opening, order vinyl or fiberglass units with nailing flanges, remove old frames without damaging stucco returns, install pan flashing integrated with weather-resistant barrier, and foam-seal the perimeter before trim.
Impact Windows & Doors
Signs you need it
Large west-facing glass areas vulnerable to wind-borne debris, or homeowner’s insurance requiring impact-rated openings for policy compliance.
What it costs in Union City
Impact window and door installation ranges from $8,000 to $25,000 in Union City, with the premium over standard units reflecting laminated glass and reinforced frame hardware.
How we do it
We specify laminated impact-rated units with Miami-Dade or AAMA certification, install with structural anchoring to meet shear requirements, and provide documentation for insurance and permit closeout.
What Windows & Doors Costs in Union City
| Item | Typical range in Union City |
|---|---|
| Window Replacement | $4,500 - $15,000 |
| Impact Window Installation | $8,000 - $25,000 |
Will replacing windows damage my stucco?
It shouldn’t if done properly; we cut at the frame edge, preserve the stucco return, and repair only where necessary with matching texture. In Union City’s older tracts, we sometimes find prior water damage hidden behind the frame that requires substrate repair. Call (669) 215-4852 for a free estimate.
Do new windows require a permit in Union City?
Yes, Alameda County requires permits for window replacement when the opening size changes or when the work is part of a larger renovation; same-size replacement in kind may qualify for an over-the-counter permit. We handle permit submittal and inspection as part of our written price. Call (669) 215-4852 for details.
Fence Installation in Union City
Union City’s flat lots and 1960s-1980s tract layouts make fence installation straightforward in plan but complex in execution, as many property lines lack modern surveys and original corner pins are often lost. The marine layer accelerates rot on wood posts set in concrete, while the western flatlands’ high winter water table can heave post footings from November through March. Fence Installation in Union City requires verifying utility locations and, on corner lots, confirming sight-line requirements with Alameda County before digging.
Vinyl Fence
Signs you need it
Wood fence posts rotted at grade, repeated repainting cycles, or HOA requirements specifying low-maintenance materials.
What it costs in Union City
Vinyl fence installation in Union City typically runs $3,500 to $9,000 for a standard residential lot, with price driven by height, panel style, and whether existing posts require complete removal.
How we do it
We locate utilities, set steel-reinforced vinyl posts in concrete below frost line, hang tongue-and-groove panels with thermal expansion gaps, and cap posts to prevent water intrusion.
Aluminum Fence
Signs you need it
Pool enclosure requirements, desire for ornamental styling without iron maintenance, or need for a non-combustible perimeter in wildland-urban interface zones.
What it costs in Union City
Aluminum fence installation ranges from $4,000 to $10,000 in Union City, with ornamental styles and rackable panels for sloped lots toward the upper end.
How we do it
We powder-coated aluminum posts in concrete or surface-mount on existing hardscape, hang welded panels with concealed fasteners, and verify gate swing clearances against site surveys.
What Fence Installation Costs in Union City
| Item | Typical range in Union City |
|---|---|
| Vinyl Fence Installation | $3,500 - $9,000 |
| Aluminum Fence Installation | $4,000 - $10,000 |
Do I need a survey before fence installation in Union City?
Not always, but we recommend one if corner pins are missing or if the neighbor disputes the line; we can install on your described boundary but require a signed acknowledgment if you decline a survey. Call (669) 215-4852 for a free estimate and site evaluation.
How deep do fence posts need to be set in Union City’s soil?
We set posts 24 to 30 inches deep in concrete, but in the western flatlands where winter groundwater rises, we sometimes extend depth or switch to gravel drainage to prevent frost heave and rot. Call (669) 215-4852 to schedule your free estimate.
Driveway & Pavers in Union City
Union City’s 1960s-1980s tract homes were built with thin concrete driveways over bay fill and soft alluvial soils that have settled differentially over decades, creating cracks, trip hazards, and poor drainage toward garages. The marine layer and winter groundwater rise in the Alvarado flatlands accelerate spalling and rebar corrosion on slabs poured without adequate vapor barriers. Driveway & Pavers work here means assessing whether the substrate can support replacement or whether geotechnical conditions require deeper excavation and engineered base.
Paver Driveways
Signs you need it
Concrete driveway cracked beyond repair, desire for permeable surface to manage runoff, or aesthetic upgrade to match updated home exterior.
What it costs in Union City
Paver driveway installation in Union City runs $7,000 to $18,000, with permeable systems and Belgard or Techo-Bloc premium lines toward the higher end.
How we do it
We excavate to stable subgrade or specified depth, install geotextile and aggregate base in lifts, screed bedding sand, lay pavers in pattern with edge restraint, and compact with polymeric sand joint fill.
Concrete Driveways & Concrete Work
Signs you need it
Surface spalling deeper than half an inch, widespread cracking with vertical displacement, or pooling water indicating reversed slope from settlement.
What it costs in Union City
Concrete driveway installation ranges from $4,500 to $12,000 in Union City, with the final number depending on whether the existing base can be reused or requires full removal and recompaction.
How we do it
We saw-cut and remove failed concrete, assess and recompact base, form with proper slope for drainage, pour with fiber or wire reinforcement, control-joint at calculated spacing, and cure with moisture retention.
What Driveway & Pavers Costs in Union City
| Item | Typical range in Union City |
|---|---|
| Paver Driveway Installation | $7,000 - $18,000 |
| Concrete Driveway Installation | $4,500 - $12,000 |
| Asphalt Driveway Paving | $3,500 - $9,000 |
Can pavers be installed over my existing concrete driveway?
Sometimes, if the concrete is structurally sound with minimal cracking and adequate slope; we bond a thin overlay system or use adjustable pedestals for elevated pavers. In Union City’s older tracts with settled slabs, full removal is usually the better long-term value. Call (669) 215-4852 for a free estimate.
Will driveway replacement trigger a soils report in Union City?
It can in the western flatlands if the project expands the footprint or adds significant load; we flag this possibility in our written quote based on your address and Alameda County’s geotechnical trigger map. Call (669) 215-4852 to schedule your free estimate.
Brands We Service in Union City
We source from fifty-plus vetted brands including KraftMaid and Wellborn cabinets, Cambria and Caesarstone countertops, GAF and Owens Corning roofing, Kohler and Toto fixtures, and Belgard and Techo-Bloc pavers. Parts are stocked through Bay Area distributors with typical turnaround of three to five business days. See our brands for the full list.
Pricing for Construction in Union City, CA
| Service | Typical range in Union City |
|---|---|
| Kitchen Remodel | $14,000 - $45,000 |
| Bathroom Remodel | $9,000 - $28,000 |
| Roof Replacement | $8,000 - $20,000 |
| Roof Repair | $400 - $1,800 |
| Metal Roof Installation | $15,000 - $40,000 |
| Window Replacement | $4,500 - $15,000 |
| Impact Window Installation | $8,000 - $25,000 |
| Vinyl Fence Installation | $3,500 - $9,000 |
| Aluminum Fence Installation | $4,000 - $10,000 |
| Paver Driveway Installation | $7,000 - $18,000 |
| Concrete Driveway Installation | $4,500 - $12,000 |
| Asphalt Driveway Paving | $3,500 - $9,000 |
Prices in Union City move upward when geotechnical requirements, asbestos abatement, or stucco repair scope emerge after demolition; our written quote includes contingency language so you’re not surprised. Under Clause 1 of The Haven Standard, the price is written before anyone starts, and no change proceeds without a signed change order.
Neighborhoods We Serve in Union City
We work across Union City’s residential areas, with crews dispatched from our San Francisco Bay Area office. Typical response for estimate scheduling is within 48 hours.
- Alvarado
- Decoto
- New Haven
- Union Landing
- Pacific Park
Service Area - Cities Near Union City
Our crews serve the broader East Bay and Peninsula from the same dispatch base, including Fremont, CA to the east, Newark, CA adjacent to the west, Palo Alto, CA to the south, and Atherton, CA on the Peninsula. Each city has its own permit environment and soil conditions, and we adjust our quotes accordingly.
Serving Union City, CA - Our Local Coverage Area
We’re based in the Union City 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 Construction in Union City
Projects in the western flatlands near Alameda Creek that involve new foundations, significant slab cuts, or added load often trigger Alameda County’s geotechnical review; we check your address against the county’s trigger map during our initial site visit and include the finding in your written quote. Call (669) 215-4852 for a free estimate.
Many Union City tracts have active HOAs with design review committees; we request your HOA guidelines before quoting and include any required submittal drawings in our scope. Permit and HOA approval are separate tracks, and we manage both. Call (669) 215-4852 to schedule your free estimate.
Once the written quote is accepted and permits are issued, typical lead time is two to four weeks depending on trade and material availability; we do not promise same-day or emergency dispatch for planned construction work. Our live answering service is available 24/7 to schedule your free estimate at (669) 215-4852.
Call (669) 215-4852 to schedule your free estimate. Every project receives a flat written price, a written scope, and a documented photo record as standard. Our 365-Day Done Right Promise applies to all work, and we offer a Free Second Opinion on any competitor’s written estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local construction 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 Union City Customers Say
"Final invoice was within two percent of the contract. Every change was priced and signed before anyone picked up a tool."
- Malcolm T."Solid work, decent crew, and the site was left tidy every evening."
- Pearl A."Driveway replaced properly with a base that will actually last. They explained why the cheaper quote was cheaper."
- Reggie O.