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Water pressure

Weak shower pressure: one fixture or the whole home?

Describe where and when the flow changes before agreeing to a large plumbing repair.

Source checked · Oct 15, 2026 · 3 min read
The short answer

Start by comparing the affected fixtures and noting when the change began. Weak flow alone does not establish which part needs repair.

Make a simple symptom list

Is only the shower affected, or also the kitchen faucet? Does it happen with hot water, cold water or both? Did it start suddenly? Write down observations rather than disassembling equipment. This is a description checklist, not a pressure test.

A local source to consult

LADWP provides location-specific water-pressure information. Its page also explains that pressure regulators on the property are installed and maintained by the owner. Utility supply pressure and a diagnosis of your indoor plumbing are different questions.

Ask for evidence before a major repair

Ask what was measured, where it was measured and what the result shows. If a regulator or pipe replacement is proposed, request the reason and a written scope. In a rental, report the symptoms to management through the usual maintenance channel.

Sources & further reading

Educational overview based on the linked sources. It does not diagnose your home.

Find a plumber near you.

Company website facts checked Oct 15, 2026. LA city and LA County service areas are identified. Not an endorsement or a complete directory.

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50 business profiles

24/7 Rooter Service

⌖ Los Angeles · Koreatown · Hollywood

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213-281-4751Public business website ↗
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AAA Total Plumbing Solutions

⌖ Los Angeles · office in Long Beach

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888-557-1255Public business website ↗
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Adeedo Plumbing & Drains

⌖ Los Angeles · Hollywood · Silver Lake

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833-936-1791Public business website ↗
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American Drain Works & Plumbing Company

⌖ West Los Angeles · Culver City

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310-390-3180Public business website ↗
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City Plumbing & Rooter

⌖ Los Angeles area · office in Winnetka

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805-579-7929Public business website ↗
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Downey Plumbing, Heating and Air Conditioning

⌖ Los Angeles County · Downey

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562-646-1221Public business website ↗
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Drain Bros Plumbing and Rooter

⌖ LA County · Norwalk · Downey · Long Beach

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562-916-4106Public business website ↗
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Drain City Plumbing

⌖ South Los Angeles · office in Torrance

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310-982-0539Public business website ↗
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Drain EZ Plumbing

⌖ LA County · Torrance · office in Lomita

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310-340-0128Public business website ↗
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Drainiacs Sewer and Drain

⌖ LA County · West Covina

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626-669-1701Public business website ↗
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DX Plumbing & Hydro Jetting

⌖ Los Angeles

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818-398-3310Public business website ↗
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E.T. Plumbing

⌖ LA County · Pasadena · San Gabriel Valley

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818-266-0213Public business website ↗
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ELBO Plumbing

⌖ Los Angeles · Koreatown · Mid-City

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323-369-4777Public business website ↗
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Enviro Plumbing Inc.

⌖ West Los Angeles · Santa Monica

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310-450-8180Public business website ↗
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Expertise Plumbing & Rooter

⌖ Los Angeles · Arleta · San Fernando Valley

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888-807-7069Public business website ↗
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Extreme Plumbing & Rooter, Inc.

⌖ Los Angeles · San Fernando Valley

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818-631-7296Public business website ↗
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F & M Plumbing

⌖ LA County · Pasadena · San Gabriel Valley

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626-296-1060Public business website ↗
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First Plumbing Construction, Inc.

⌖ Los Angeles

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English한국어Drains & clogsLeaks & water bills
213-505-5234Public business website ↗
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Happy Flushin Plumbing

⌖ Los Angeles · San Fernando Valley

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Language not confirmedDrains & clogs
818-568-7152Public business website ↗
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Hart 2 Hart Plumbing

⌖ LA County · Pasadena · San Gabriel Valley

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626-437-8042Public business website ↗
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HN Harris Plumbing Inc.

⌖ Los Angeles

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323-469-0537Public business website ↗
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JLB Plumbing

⌖ Los Angeles County

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213-570-2686Public business website ↗
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John’s Plumbing & Drain Services

⌖ Los Angeles · Glendale · Burbank

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323-422-7485Public business website ↗
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John’s Plumbing & Rooter

⌖ San Fernando Valley

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818-887-0915Public business website ↗
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Los Angeles Plumbing Company

⌖ Los Angeles · office in North Hollywood

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818-528-4000Public business website ↗
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Maverick Drain Inc.

⌖ Los Angeles County · San Gabriel Valley

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323-742-4665Public business website ↗
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Merry Plumbing

⌖ LA County · Pasadena · office in San Marino

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626-414-5583Public business website ↗
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Mike Diamond Plumbing

⌖ Los Angeles · Koreatown · Silver Lake

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800-446-6453Public business website ↗
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Monkey Wrench Plumbing, Heating, Air & Electric

⌖ Los Angeles area · Santa Monica

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818-213-1773Public business website ↗
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New Pro Plumbing LLC

⌖ West Los Angeles · Mar Vista · Palms

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310-663-7666Public business website ↗
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Over Under Plumbing

⌖ Los Angeles · office in Glendale

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818-937-0060Public business website ↗
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P-Eight Plumbing

⌖ LA County · Pomona · Claremont; office in Montclair

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909-893-4296Public business website ↗
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Papa’s Plumbing Inc.

⌖ Los Angeles

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Language not confirmedDrains & clogs
626-243-3689Public business website ↗
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Pipe It Right Plumbing, Inc.

⌖ Los Angeles · Hollywood · Silver Lake

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951-287-5287Public business website ↗
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Plumbers & Rooters Inc.

⌖ LA County · Pasadena · Altadena

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626-807-7717Public business website ↗
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Power Pro Plumbing, Heating & Air

⌖ Greater Los Angeles

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833-212-2124Public business website ↗
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Premier Flow Plumbing LLC

⌖ Greater Los Angeles · office in Pasadena

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323-591-5773Public business website ↗
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Primetime Plumbing & Rooter

⌖ LA County · Torrance

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Language not confirmedDrains & clogs
310-984-0377Public business website ↗
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Real Plumbers

⌖ Los Angeles · Santa Monica

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323-821-7922Public business website ↗
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Red Lilly Plumbing

⌖ Los Angeles · Echo Park · Silver Lake

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323-319-4102Public business website ↗
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Ritz Plumbing

⌖ Los Angeles · LA County

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888-757-7489Public business website ↗
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Rooter & Plumbing Masters

⌖ LA County · office in Montebello

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888-855-6680Public business website ↗
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Rooter and Beyond Plumbing, Inc.

⌖ Los Angeles area · office in Bellflower

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800-332-9210Public business website ↗
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Rooter-Man · Golden Best Plumbing Inc.

⌖ LA County · Sylmar · Burbank · Covina

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424-279-4945Public business website ↗
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Roto-Rooter · Los Angeles

⌖ Los Angeles · LA County

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661-257-9200Public business website ↗
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T-MAX Plumbing Services

⌖ Los Angeles · Westside · San Fernando Valley

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424-850-0001Public business website ↗
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Team Rooter

⌖ Los Angeles County · office in Sun Valley

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800-818-2397Public business website ↗
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Tony’s Plumbing, Inc.

⌖ LA County · Torrance · Harbor City

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310-905-8484Public business website ↗
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TS Plumbing & Rooter LLC

⌖ Sylmar · San Fernando Valley

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818-818-0898Public business website ↗
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Western Rooter & Plumbing

⌖ LA County · office in Arcadia

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626-448-6455Public business website ↗
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Language tags come only from explicit statements about spoken service on company sites, not names or website language. Businesses may appear in more than one group. Confirm language when calling. This initial directory does not cover every LA business.