Company Facts
Black Mountain Plumbing at a Glance
The work
- Best for
- round-the-clock plumbing and water heater work across inland San Diego
- Primary service
- Plumbing
Where
- Headquarters
- San Diego, CA
- Service area
- San Diego
- Emergency service
- Business hours only
Money and guarantees
- Free estimates
- Not advertised
- Financing
- Not advertised
Editorial Review
Our Take on Black Mountain Plumbing
A 4.8 average across 1,674 Google reviews, read in late September 2026, is a lot of consistency to accumulate, and a 1993 start date in a market with as much plumbing churn as San Diego counts for something. The breadth is the appeal and also the caution: a shop that does remodels, commercial kitchens and 2am burst lines is useful, but you should pin the scope and the price down in writing before anyone starts cutting drywall.
Best for: round-the-clock plumbing and water heater work across inland San Diego
What We Like
- 4.8 rating from 1,674 Google reviews as of September 27, 2026, an unusually large sample locally
- Trading since 1993 with California licence 782799 published on its own site
- Published hours of 24 hours a day, seven days a week, with emergency and holiday calls advertised
- Covers both residential and commercial work, including commercial kitchens and bathrooms
- Handles remodel plumbing as well as repairs, so one contractor can carry a bathroom or kitchen project
- States upfront pricing with repair options and a 100% workmanship guarantee
Things to Consider
- A larger operation with 24/7 staffing is rarely the lowest bid on simple repairs
- The claim of 4,000-plus five-star reviews spans multiple platforms and cannot be checked in one place
- The quoting contact and the attending technician may be different people, so keep the written scope
- Guarantee duration and exactly what it covers are not spelled out in the published material
Google Reviews for Black Mountain Plumbing
Customer ratings shown here come from Google. They are separate from our editorial review above.
Google rating
4.8
Based on 1674 Google reviews
Review data updated September 27, 2026
Rating Distribution
- 5 stars93%
- 4 stars3%
- 3 stars1%
- 2 stars1%
- 1 star2%
iAbout this distribution
The distribution reflects the 1674 Google reviews available when this profile's review data was last refreshed on September 27, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.
Editorial Ranking
Why Black Mountain Plumbing Made Our Top 10
It holds position 6 in 10 Best Plumbers in San Diego, CA.
Services Offered
Areas Served
Based in San Diego, CA.
iAbout service coverage
Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.
About Black Mountain Plumbing
The service list here stretches from a dripping tap to a replaced sewer lateral, and that breadth is worth understanding before you call. On the residential side the company lists repairs and installations, drain and sewer cleaning and replacement, water heaters, water line installation, and sump and sewage pumps. On the commercial side it lists kitchens, bathrooms, water and sewer lines, leak detection, and industrial plumbing. Emergency work is described separately: sewer stoppages, burst washing machine hoses, clogged kitchen and bath drains, leaking pipes, overflowing toilets. Add bathroom and kitchen remodeling, tankless conversions, water filtration and gas fitting, and you have a general plumbing contractor rather than a specialist.
Age matters in this trade, and black mountain plumbing says it has been working San Diego since 1993, which puts it past three decades. The Google Business Profile carried a 4.8 rating from 1,674 reviews when checked on September 27, 2026. That volume is unusual locally and generally signals a company running several trucks and closing a lot of tickets, not a one-van operation. The site also claims more than 4,000 five-star reviews across platforms, which is a company claim rather than something a reader can verify in one place, though Yelp and BBB profiles are linked from the site.
Location shapes the work in San Diego more than people expect. Scripps Ranch, Rancho Penasquito and Mira Mesa are largely 1970s through 1990s tract housing, which means copper supply lines reaching the age where pinhole leaks start appearing in slab and wall runs, original ABS drain systems, and first or second generation water heaters in garage closets or exterior enclosures. Closer to the coast and in the older neighbourhoods, cast iron and clay sewer laterals are common, and root intrusion from mature landscaping is a recurring cause of stoppages. San Diego water is hard, which is the practical reason water filtration and softening come up so often on local plumbing menus, and it shortens the life of water heater anode rods and tankless heat exchangers unless the unit is flushed on a schedule. If you are considering a tankless conversion, ask specifically about descaling intervals and whether gas line and venting upgrades are included in the quote, because on many San Diego homes they are not optional.
Who this suits: homeowners in the northern inland suburbs and across the county who want an established licensed contractor available at odd hours, people replacing a water heater or dealing with a recurring drain problem, and small commercial operators such as restaurants and offices who need a plumber who already works in commercial kitchens. Who it suits less well: anyone hunting the lowest possible price on a simple repair. A firm with this many trucks, this much overhead and a round-the-clock roster is rarely the cheapest bid, and the company's own emphasis on upfront flat pricing rather than hourly rates reflects that model.
Before booking, get the scope in writing. For a sewer problem, ask whether a camera inspection is included or billed separately, and ask for the video and the footage marks so you can compare a spot repair against a full lateral replacement. For a water heater, confirm whether the price covers permit, expansion tank, seismic strapping and disposal of the old unit, since San Diego permit and code requirements often add line items that a phone quote leaves out. For remodel plumbing, ask who pulls the permit and how inspections are coordinated with your other trades. And clarify what the stated 100% workmanship guarantee actually covers in duration and scope, because parts warranties and labour warranties are usually different lengths.
Compared with the alternatives in this market, black mountain plumbing sits between the national franchise operations that advertise heavily and the small independents who answer their own phones. You get after-hours availability and a deep service list, with licence 782799 published openly, which is a reasonable thing to verify against the California CSLB record yourself. The trade-off is the one you would expect from a larger shop: the plumber who arrives may not be the person who quoted, so ask for the technician's name and keep the written scope handy when they show up.
iWhere this information comes from
Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.
Credentials
- Plumbing licence782799Reported
iWhat verified means here
Verified means we checked the credential against the authority that issues it and recorded the date. Reported means the business told us and we could not independently confirm it. We publish both, labelled, rather than dropping what we could not check.
Reputation by Source
We show each source separately rather than blending them into a single score, because they measure different things.
Google
4.8/ 5
1674 customer reviews
TenBestFind
Editorially reviewed
Ranked #6 in San Diego plumbers, September 2026
Project Photos
Business-submitted, reviewed by our editors
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Black Mountain Plumbing FAQs
Is Black Mountain Plumbing open 24 hours?
Published hours list open 24 hours, every day of the week, and the company advertises emergency calls seven days a week including holidays. For a burst line or an overflowing toilet at night, call the listed number, (858) 536-4161. As with most plumbers, expect after-hours work to be priced differently from a scheduled daytime visit, so ask what the call-out covers before the truck rolls.
What areas of San Diego does it cover?
The business operates from Hibert Street in the Scripps Ranch area of San Diego and says it serves San Diego County, from the inland neighbourhoods out to the coast. Nearby communities such as Mira Mesa, Rancho Penasquitos and Poway are the closest to the shop. If you are further out, confirm coverage and any travel charge when you book.
Is it licensed?
Yes, California licence 782799 is published on the company's own website. You can check that number against the California Contractors State License Board record yourself to confirm the status, classification and whether workers' compensation and bond are current. The company also links to a Better Business Bureau profile.
How good are the reviews?
The Google Business Profile showed 4.8 stars from 1,674 reviews when read on September 27, 2026. That is a large review count for a local plumbing contractor and suggests a steady volume of completed jobs over many years. The company separately claims more than 4,000 five-star reviews across platforms, which combines several sites rather than Google alone.
Do they install tankless water heaters?
Yes, tankless installation is listed alongside conventional tank water heater repair and replacement. On San Diego homes a tankless conversion often needs a larger gas line, new venting and sometimes an electrical outlet, so ask whether those items are inside the quoted price. Hard water in the region also makes annual descaling important for tankless longevity, and worth asking about as a maintenance plan.
Do they handle sewer line problems, not just clogs?
Yes. The service list includes drain cleaning and rooter work, sewer line repair and sewer replacement, which is the relevant range for older San Diego laterals in cast iron or clay. For a recurring stoppage, ask for a camera inspection with the footage marks recorded so you can weigh a spot repair against replacing the run.
Is it a good fit for commercial work?
It presents commercial plumbing as a core part of the business, listing commercial kitchens and bathrooms, water and sewer lines, leak detection and industrial plumbing. Restaurants and small offices needing after-hours work to avoid disrupting trading hours are the natural fit, given the round-the-clock hours. For larger scheduled projects, ask about preventive maintenance agreements, which the site also lists.
Is Black Mountain Plumbing licensed and insured?
We checked 0 of 1 credentials against the issuing authority. Verified items carry the date we checked; reported items are what the business told us and we could not independently confirm.
What areas does Black Mountain Plumbing serve?
San Diego. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.
Does Black Mountain Plumbing offer emergency service?
Emergency availability is not listed for this company. If you need an urgent call-out, check the ranking for companies that do list it.
What warranty do they offer?
Warranty terms are not on file. Ask for them in writing before work starts.
How was this profile built?
Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.
Can a business pay to improve its profile?
A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.
Is Something Incorrect?
Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.
Suggest an UpdateOwn Black Mountain Plumbing?
Claim your profile to verify and maintain your business information, services and service area.
iWhat claiming does
Claiming lets you correct and maintain the factual information on this profile. Claiming or upgrading a profile does not guarantee inclusion in a TenBestFind ranking and never affects ranking position, which is decided editorially.
About This Business Profile
- Last reviewed
- September 2026
- Profile last updated
- September 27, 2026
- Google review data updated
- September 27, 2026
- Reviewed by
- Dana Whitfield, Senior editor, home services
- Sources checked
- Issuing authorities, Google Business Profile, Company website
- Sponsorship status
- No commercial relationship
Dana runs the editorial side of TenBestFind. She built the research process, decides which markets get covered next, and writes the plumbing and chimney rankings herself. Before this she spent eleven years as a consumer reporter covering contractor licensing and home improvement fraud.

