Drainage Repair in Bay Point & the East Bay
Golden Hills Landscape, Inc. provides yard drainage repair in Bay Point and throughout Contra Costa and Alameda counties. Water collecting near the house, muddy side yards, patio puddles and downspouts emptying into low spots need a site-specific assessment. Alfonso checks the grade, existing drains and possible discharge points, then recommends drain-line repair or replacement, downspout routing, surface drains or grading as the property requires. Request a free written estimate in English or Spanish.
Licensed #1118886 · Bonded and insured · English and Spanish
Projects we take on
- French drains and subsurface drain lines
- Channel drains at driveways, patios and garage aprons
- Catch basins and area drains in low spots
- Downspout collection and tie-in lines
- Regrading side yards and lawn areas
- Hillside erosion control: fabric, terracing and planting
- Sump systems where gravity outlets are not available
Materials and finishes
- • Perforated and solid PVC or corrugated pipe
- • Clean drain rock and filter fabric
- • Channel drains, catch basins and grates
- • Pop-up emitters and outlet fittings
How the work goes
- 01Walk the siteWe trace the path water takes during a storm and find the low points and entry points.
- 02Set the outletA drain only works if it discharges somewhere legal and lower. We confirm that first.
- 03TrenchingTrenches are cut to a consistent fall toward the outlet.
- 04Pipe, rock and fabricPerforated or solid pipe is bedded in drain rock and wrapped where soil migration is a concern.
- 05Grading and restorationSurfaces are regraded to feed the system and the work area is restored.
Real projects
Replace what’s worn out. Plan what goes underneath.
A new paver patio, driveway replacement or retaining wall starts with the existing surface, the base and a path for water. Alfonso reviews those together and provides a written scope for your property. Start with the area you need most; ask about planning the rest in phases.
Real job footage
Watch our crew build a hillside drain
Filmed on a recent East Bay hillside job. This is the work underground that you never see once it's finished.
- Slope checked with a laser level, so water flows the right way
- Grade readings taken on the hillside before digging
- Trench lined with filter fabric so the drain doesn't clog
- Pipe set on clean gravel, then covered
What a drainage project costs — and why
Two drainage jobs of the same length can be priced very differently. We don't quote from a price list or over the phone; Alfonso walks the yard, finds where the water goes, and gives you a free written estimate. Here is what drives the number:
| Cost factor | Impact | What it means for your yard |
|---|---|---|
| Length and depth of the drain line | Biggest factor | Every foot of trench means digging, pipe, drain rock and fabric. Deeper lines (behind walls or along foundations) take more labor and material. |
| Where the water can go (the outlet) | Biggest factor | A short run to the curb or a lower part of the lot is simplest. If there is no lower point, a sump pump and basin add equipment and electrical work. |
| Soil and digging conditions | Biggest factor | Hard clay, rock, roots and tight side yards slow trenching. Machine access versus hand digging makes a real difference. |
| Surfaces in the way | Moderate factor | Cutting and replacing concrete, pavers or a driveway apron to cross with a pipe or add a channel drain adds demolition and restoration. |
| Type of drain | Moderate factor | French drains, channel drains, catch basins and downspout lines use different parts. Many yards need a combination. |
| Regrading and restoration | Moderate factor | Reshaping soil so it falls away from the house, then putting back lawn, rock or planting over the trench. |
| Permits and haul-off | Smaller factor | City permits when required, and hauling away extra soil from the trench. |
Tip: if you are also planning a patio, driveway or wall, add the drainage at the same time. Putting pipe in before the surface goes down costs far less than cutting it open later.
East Bay soil types and how they drain
The soil under your yard decides which fix actually works. General patterns we see — every lot is checked on site:
Expansive clay (most common here)
Walnut Creek, Concord, Pleasant Hill, San Ramon, Danville, Pittsburg, Antioch
Much of Contra Costa sits on clay that swells when wet and shrinks and cracks when dry. Water soaks in slowly, so it sits on the surface and builds up against foundations. Clay needs a piped drain to a real outlet — a gravel pit alone usually fills and stays full. We wrap the rock in filter fabric so the fine clay does not clog it.
Hillside and adobe soils
Lafayette, Orinda, Moraga, Alamo, Blackhawk
On slopes, water moves downhill under the surface and comes out at the bottom of the yard, behind walls or at the back of the house. These lots usually need an interceptor (cut-off) drain across the slope above the problem area, plus drainage behind any retaining wall.
Sandy and loam soils
Parts of Brentwood, Oakley, Discovery Bay and the valley floor
Water drains faster, but low spots, compacted builder fill and high groundwater near the Delta can still cause pooling. Here, regrading and surface drains often solve more than deep French drains.
Permits and rules for drainage work
Most simple yard drains do not need a permit
A French drain or downspout line that stays on your property and discharges to a lower spot on your own lot is usually treated as landscape work. Your city has the final say, so we confirm before we start.
Curb outlets and work in the sidewalk
Running a pipe through the curb or under the sidewalk is work in the public right-of-way. Most cities require an encroachment permit for this, and some have rules on outlet size and where it can go.
Larger grading
Moving a significant amount of soil, changing grades on a slope, or work near a creek can trigger a grading permit. The amount that triggers it differs by city and county.
Where water is allowed to go
You cannot redirect runoff onto a neighbor's lot, and only rainwater should reach the street — East Bay storm drains flow to creeks and the Bay. We plan the outlet around that.
HOA approval
In HOA communities like Blackhawk, Rossmoor or Dougherty Valley, visible changes (grates, curb outlets, regrading) may need architectural review. We can prepare the drawings and notes for your submission.
Rules change by city. This is general information, not legal advice — we check your city's requirements as part of the estimate.
Preparation, drainage and durability
Drainage gets designed with hardscape, not after it. When a patio, driveway or wall is going in, the drain lines go in first so the finished surface never has to be opened up again.
Why hire Golden Hills
- More than 20 years of hands-on experience
- Licensed California contractor #1118886
- Bonded and insured, owner-led crews
- Clear written estimates before work starts
- Organized job sites and full cleanup
- English and Spanish communication
Reputation
Customer feedback
“Had a great experience with Golden Hills Landscape. They installed pavers, irrigation, rocks, and sod in my backyard and did a fantastic job. Super professional, great prep work, and everything was done in a timely manner. Pricing was very fair. The yard looks amazing--would definitely use them again and highly recommend.”
“Viktor listened to my concerns about my cracked driveway and came up with a creative, cost-effective solution that worked perfectly. The team worked tirelessly from morning until night and never skipped a day, staying on schedule and completing the job within the proposed time period. The quality of the work was outstanding--my driveway looks beautiful now, and the entire process was seamless.”
Google reviews above are pulled live from our Google Business Profile and shown unedited. Every quote links to the original review.
Drainage & Grading questions we get
- Do you repair yard drainage in Bay Point?
- Yes. Golden Hills is based in Bay Point and assesses standing water, downspout discharge, patio puddles and existing yard drains. Alfonso checks the water path and outlet before recommending repair, replacement or grading. The on-site estimate is free, in English or Spanish.
- Can you repair an existing drain instead of installing a new one?
- Sometimes. Alfonso first checks the existing line, connections, slope and outlet. A disconnected or damaged section may be repaired; a failed line or unsuitable outlet may need replacement or a different drainage plan. The recommendation and scope are explained in the written estimate.
- Should I fix drainage before the rainy season?
- Yes, if you can. October and November are the best time to add French drains, downspout lines or regrading, before the winter storms bring standing water, wet foundations and soggy side yards.
- Do you install downspout drainage?
- Yes. We connect downspouts to buried lines that carry roof water away from the foundation to a proper outlet, often together with a French drain.
- Why is water pooling next to my house?
- Usually the grade falls toward the structure or a downspout dumps at the foundation. Both are fixable, often together.
- What is a French drain?
- A perforated pipe bedded in drain rock that collects subsurface water and carries it to an outlet. It is the standard fix for a soggy lawn or a wet side yard.
- Who installs French drains near me?
- Golden Hills installs French drains across Contra Costa and Alameda counties, including Walnut Creek, Danville, San Ramon, Lafayette, Concord and Pleasanton. Alfonso comes out, looks at where the water collects, and gives you a free written estimate.
- How much does it cost to install a French drain?
- It depends on how long and deep the drain runs, where the water can go, how hard the soil is to dig, and any concrete or landscaping in the way. The cost section above explains each factor. We give a free written estimate after seeing the yard.
- Can you fix a hillside that is washing out?
- Yes. Erosion control usually combines grading, erosion-control fabric, terracing or a wall, and planting that holds the soil.
- Where does the water go?
- To a lower point on the property, a street curb outlet or an approved discharge, depending on your lot and city rules.
- Can drainage be added under an existing patio?
- Sometimes along the edges. Running a line under an existing slab usually means cutting it, which is why we install drainage during construction.
- Will a dry creek bed solve it?
- It helps with surface flow and looks good, but it is not a substitute for a piped system when water needs to travel.
- Do you handle sump pumps?
- Yes, where there is no gravity outlet available.
Related services
Where we work
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Whether you’re planning a new driveway, patio, walkway, retaining wall, drainage system or complete outdoor renovation, Golden Hills can help you understand the right next step.