French drain cost in San Luis Obispo, CA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (60 linear ft)
- $720 – $2,550
- Per linear ft
- $12 – $42
- before permit
- Versus US midpoint
- +21%
- US $1,350
- Rank of 300 metros
- #20
- 1 = most expensive
San Luis Obispo homeowners pay roughly $720 to $2,550 to install a French drain at 60 linear ft, or $12 to $42 per linear ft (permit not included). Against the US midpoint, San Luis Obispo is 21% higher. Construction laborers earn a median of $28.92 an hour in the San Luis Obispo area, 28% above the US median of $22.66.
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Estimated cost for 60 linear ft in San Luis Obispo, CA, standard level
$1,250 to $2,000
About $21 to $33 per linear ft before permits. Labor is about 58% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $530 | $830 |
| Labor | $740 | $1,150 |
| Permits and fees | $0 | $0 |
| Total | $1,250 | $2,000 |
Cost breakdown for 60 linear ft in San Luis Obispo, CA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $300 | $680 | $1,050 | 42% |
| Labor | $420 | $950 | $1,450 | 58% |
| Permits and fees | $0 | $0 | $0 | 0% |
| Total | $720 | $1,650 | $2,550 | 100% |
What is behind the San Luis Obispo number
Labor is 58% of the midpoint bill here, against 52% nationally. The mix of trades behind this job is construction laborers (50%), operating engineers and other construction equipment operators (30%), pipelayers (20%). We weight each trade's local median wage by that share and compare it with the national median. In San Luis Obispo the blended ratio comes out at 1.35.
On the materials line, the BEA goods price index for the San Luis Obispo metro is 105.2 (US = 100). The midpoint materials bill for 60 linear ft comes to $680, compared with $650 at national prices. Permit and inspection fees are scaled by the broader index (108.6) and land at $0 to $0.
Data note: 20% of the labor weighting for this project uses a statewide median because BLS has no published metro figure for that trade in San Luis Obispo. The wage table below marks each row.
Cost by quality level and size in San Luis Obispo
Three bands are cut from the same cited range and localized for San Luis Obispo wages and prices. They overlap on purpose: a good standard job and a modest premium job can cost the same. The grid below prices the same bands at 3 common sizes.
Basic
$720 to $1,450
Shallow yard drain, easy digging
Standard
$1,250 to $2,000
Standard drain with fabric, gravel and a pop-up outlet
Premium
$1,800 to $2,550
Deep or long drain, hard soil, dry well or sump discharge
| Size | Basic | Standard | Premium |
|---|---|---|---|
| short run (30 linear ft) | $360 – $720 | $630 – $990 | $900 – $1,250 |
| side yard (60 linear ft) | $720 – $1,450 | $1,250 – $2,000 | $1,800 – $2,550 |
| long run (120 linear ft) | $1,450 – $2,900 | $2,550 – $4,000 | $3,600 – $5,050 |
Local wages behind the labor line
Wages are the part of this estimate that changes most from town to town. 3 trades carry the job here, and each is compared with its US median. The weighted result for San Luis Obispo is 1.35 times the national level.
Construction laborers (47-2061), 50% of the weighting: a median of $28.92 an hour, 28% above the US median of $22.66. The middle half of them earn between $23.31 and $36.80 an hour. About 1,030 work in the metro. That is 84.4 per 10,000 jobs, compared with 70.5 nationally, which suggests plenty of local crews to bid.
For operating engineers and other construction equipment operators (47-2073, weighted 30%) the local median is $38.14 an hour, which is 33% above the national $28.78. The middle half of them earn between $30.15 and $56.13 an hour. BLS counts 530 of them working in the area, 43.4 for every 10,000 jobs (US: 30.7), so the local bench is deeper than average.
Pipelayers (47-2151) carry 20% of the labor weighting. BLS does not publish this trade for the San Luis Obispo metro, so we used the California statewide median: $36.63 an hour against $23.56 for the US. The middle half of them earn between $29.74 and $45.46 an hour.
Quotes come from real crews, not medians. If the construction laborers on your job are paid at the 75th percentile ($36.80 an hour) instead of the median, the labor line grows by about $120. At the 25th percentile ($23.31) it shrinks by about $85. The total moves by 7.5% or 5.3%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 122,020 jobs in the San Luis Obispo-Paso Robles area. That makes it the 178th largest of the 300 metros we cover, with 0.08% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Construction laborers (47-2061) | 50% | $23.31 | $28.92 | $36.80 | $22.66 | 1.28 | metro |
| Operating engineers and other construction equipment operators (47-2073) | 30% | $30.15 | $38.14 | $56.13 | $28.78 | 1.33 | metro |
| Pipelayers (47-2151) | 20% | $29.74 | $36.63 | $45.46 | $23.56 | 1.55 | state |
| Blended | 100% | 1.35 | |||||
What nearby projects cost in San Luis Obispo
Because every project leans on different trades, San Luis Obispo's wage level does not move all prices equally. Against the US midpoint, gravel driveway runs +18% and concrete slab +11%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Retaining wall | 200 sq ft of wall face | $8,050 – $15,000 | +12% |
| Gravel driveway | 1,000 sq ft | $2,950 – $12,000 | +18% |
| Sod installation | 1,500 sq ft | $1,700 – $3,700 | +12% |
| Concrete slab | 400 sq ft | $2,750 – $5,750 | +11% |
| Sprinkler system | 4,000 sq ft of lawn | $4,450 – $11,100 | +11% |
| Inground pool | 450 sq ft | $41,300 – $129,000 | +14% |
How San Luis Obispo compares
Contractors rarely work more than an hour or two from home, so the neighboring metros set a rough ceiling and floor for your quotes. Midpoints for 60 linear ft range from $1,450 to $1,650 across San Luis Obispo and its five closest metros.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| San Luis Obispo, CAthis page | $720 – $2,550 | $1,650 | |
| Santa Maria, CA65 miles | $710 – $2,500 | $1,600 | −1% |
| Salinas, CA75 miles | $730 – $2,550 | $1,650 | +1% |
| Bakersfield, CA95 miles | $710 – $2,450 | $1,600 | −2% |
| Oxnard, CA105 miles | $710 – $2,450 | $1,600 | −2% |
| Visalia, CA110 miles | $650 – $2,300 | $1,450 | −10% |
| California (statewide) | $740 – $2,600 | $1,650 | +2% |
| United States | $600 – $2,100 | $1,350 | −17% |
Across 300 US metros, San Luis Obispo comes in at #20 from the top. The priciest is San Francisco, CA at $1,900; the cheapest is McAllen, TX at $1,100 (midpoints, 60 linear ft). Statewide, San Luis Obispo is 2% below the California figure.
Other California metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Los Angeles, CA | 6,271,560 jobs | $750 – $2,600 | $1,700 | +4% |
| San Francisco, CA | 2,373,920 jobs | $840 – $2,950 | $1,900 | +17% |
| Riverside, CA | 1,716,760 jobs | $710 – $2,500 | $1,600 | −2% |
| San Diego, CA | 1,538,060 jobs | $710 – $2,500 | $1,600 | −1% |
| San Jose, CA | 1,134,970 jobs | $820 – $2,850 | $1,850 | +14% |
| Sacramento, CA | 1,080,590 jobs | $740 – $2,600 | $1,650 | +2% |
Cities with a workforce like San Luis Obispo's
Big cities and small ones price differently, so here is San Luis Obispo against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Midland, TX | 122,180 jobs | $550 – $1,900 | $1,250 | −24% |
| Kalamazoo, MI | 121,790 jobs | $610 – $2,150 | $1,400 | −15% |
| Rochester, MN | 122,980 jobs | $700 – $2,450 | $1,600 | −3% |
| Ocala, FL | 120,980 jobs | $530 – $1,850 | $1,200 | −26% |
Specs and site conditions that change a San Luis Obispo bid
Depth and soil
Rocky or clay soil and long trenches raise excavation time.
Crawl space drains
A crawl space French drain is $2,000-$8,000 installed.
Exterior versus interior
A shallow exterior French drain is $10-$35 per linear foot; an interior basement drain is $40-$85 per foot, or $4,000-$17,000 installed (HomeGuide).
When to schedule French drain in San Luis Obispo
We use NOAA's 1991-2020 climate normals for San Luis Obispo Ap (5 miles from the city center). These are 30-year monthly averages, not forecasts.
Weather is not a serious constraint for digging, grading and setting material in the ground in San Luis Obispo: no month in the averages is cold enough (an average overnight low at or below freezing (32°F)) or hot enough (an average daytime high of 90°F or more) to rule it out, so the workable window is all year.
San Luis Obispo gets about 18 inches of precipitation in a normal year. The wettest months are January, February and December (3.9 inches in January). The station averages about 15 days a year at 90°F or above.
Does the season change the price? Probably, but we do not have a sourced seasonal price curve, so the estimator shows a year-round figure and does not adjust by month. When you collect quotes, ask whether scheduling in a slower month gets a better rate.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 65 | 41 | 3.9 | Workable |
| Feb | 65 | 42 | 3.5 | Workable |
| Mar | 67 | 45 | 3.2 | Workable |
| Apr | 69 | 46 | 1.1 | Workable |
| May | 72 | 48 | 0.5 | Workable |
| Jun | 75 | 51 | 0.1 | Workable |
| Jul | 78 | 54 | 0.1 | Workable |
| Aug | 79 | 55 | 0.0 | Workable |
| Sep | 80 | 53 | 0.0 | Workable |
| Oct | 77 | 50 | 0.9 | Workable |
| Nov | 71 | 45 | 1.4 | Workable |
| Dec | 65 | 40 | 3.3 | Workable |
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French drain in San Luis Obispo: your questions
+How much does it cost to install a French drain in San Luis Obispo?
For 60 linear ft, expect $720 to $2,550 in the San Luis Obispo area. A standard-spec job lands at $1,250 to $2,000. Small jobs usually cost more per linear ft and large ones less.
+What is the price per linear ft for French drain in San Luis Obispo?
About $12 to $42 per linear ft for materials and labor, plus $0 to $0 for the permit if one is needed. The US range is $10 to $35.
+Is French drain cheaper in San Luis Obispo or Santa Maria?
Santa Maria is 65 miles away. The midpoint for 60 linear ft there is $1,600, which is 1% less than San Luis Obispo ($1,650). Wage and materials indexes both feed that gap.
+How much of the bill is labor in San Luis Obispo?
About 58% at the midpoint, or $950 out of $1,650. Materials are 42% and permits 0%. Nationally, labor is 52%.
+What would side yard (60 linear ft) cost in San Luis Obispo?
$720 to $2,550. Pick a different size in the estimator above to get your own number.
+Does French drain need a permit in San Luis Obispo?
Often, but rules are set by your city or county building office, so call before you hire. Budget $0 to $0 for fees in the San Luis Obispo area (our national range of $0 to $0 scaled by the local price level).
+Is San Luis Obispo expensive for French drain compared with the rest of California?
San Luis Obispo is 2% below the California statewide estimate ($1,650 at the midpoint). We cover 23 metros in California; see the state page to compare them.
+What do construction laborers earn in San Luis Obispo?
The BLS median is $28.92 an hour in the San Luis Obispo area, compared with $22.66 nationally. The 25th to 75th percentile range is $23.31 to $36.80.
+What do basic and premium French drain work cost in San Luis Obispo?
For 60 linear ft, basic work runs $720 to $1,450 and premium work $1,800 to $2,550. Basic means: shallow yard drain, easy digging. Premium means: deep or long drain, hard soil, dry well or sump discharge.
+Is there a bad season to install a French drain in San Luis Obispo?
Not from a temperature point of view. NOAA's 1991-2020 normals show no month with a freezing-level overnight low or a 90°F-plus average high, so timing is mostly about contractor availability and rain.
French drain near San Luis Obispo
Where these numbers come from
Base prices are national ranges from the sources below. We scale labor by local BLS wages, materials by BEA goods prices and permits by the BEA all-items price level. Full method on the methodology page.
- HomeGuide: How Much Does a French Drain Cost? (2026) (accessed November 4, 2026)
- Cost to Renovate: Renovation Labor Report 2026: Where the Money Goes (accessed November 4, 2026)
- BLS Occupational Employment and Wage Statistics, May 2025
- BEA Regional Price Parities, 2024
- NOAA NCEI U.S. Climate Normals, 1991-2020
Note on derived figures: Materials = 48% of the installed price, from Cost to Renovate's mid-range 'Outdoor Living' category split (44% labor, 48% materials). It is a category average, not a French-drain figure, so the materials line here is a rough one.