Company Facts
Diamondback Plumbing at a Glance
The work
- Best for
- property managers and commercial clients needing plumbing and HVAC on multi-tenant buildings
- Primary service
- Plumbing
Where
- Headquarters
- Phoenix, AZ
- Service area
- Phoenix
- Emergency service
- Business hours only
Money and guarantees
- Free estimates
- Not advertised
- Financing
- Not advertised
Editorial Review
Our Take on Diamondback Plumbing
A clear specialist, and specialists are usually easier to judge than generalists. The 4.5 from 702 reviews on the Google profile is a healthy signal, and the dual Plumbing and Mechanical branding is the only thing likely to confuse a first-time caller. Property managers should ask about maintenance contract structure early, since that appears to be where the company does its best work.
Best for: property managers and commercial clients needing plumbing and HVAC on multi-tenant buildings
What We Like
- 4.5 rating from 702 reviews on its Google Business Profile, read September 27, 2026
- Focused on multi-family and commercial work rather than one-off residential calls
- Plumbing and HVAC under one contractor, useful for apartment and condo portfolios
- Company states 24/7 emergency service across the metro area
- Separate projects division for large-scale replacements and capital work
- States over 30 years serving Phoenix and surrounding Maricopa County
Things to Consider
- Positioned for commercial and multi-family clients, so single-family homeowners may fit better elsewhere
- Operates under both Diamondback Plumbing and Diamondback Mechanical branding, which can confuse first-time callers
- No pricing is published, so after-hours and emergency rates need confirming before dispatch
- Licensing, bonding and insurance are company claims and should be verified against current ROC records
Google Reviews for Diamondback Plumbing
Customer ratings shown here come from Google. They are separate from our editorial review above.
Google rating
4.5
Based on 702 Google reviews
Review data updated September 27, 2026
Rating Distribution
- 5 stars82%
- 4 stars5%
- 3 stars2%
- 2 stars2%
- 1 star10%
iAbout this distribution
The distribution reflects the 702 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.
Services Offered
Areas Served
Based in Phoenix, AZ.
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 Diamondback Plumbing
Most plumbing companies in the Valley chase homeowners. This one has pointed itself somewhere else. The published service list is built around commercial plumbing for restaurants, retail, offices and warehouses, multi-family plumbing for apartment and townhome communities, multi-family HVAC covering split systems and PTAC units, and preventative maintenance programs designed to cut down on emergency call-outs. The branding sits across two names, Diamondback Plumbing and Diamondback Mechanical, with a shared address at 17423 N 25th Ave in North Phoenix and shared contact details. If you call, do not be thrown by hearing the mechanical name.
Work on occupied multi-family property is a different discipline from a house call. A water heater swap in a 200 unit complex means coordinating shutoffs, posting notice, working through a stack of units in sequence and getting water back on before residents come home. The company's own material talks about minimizing downtime and communicating with property managers, which is the right emphasis. Restaurants bring their own problems: grease-laden waste lines, grease interceptor service, back-to-back health inspections and a service window that usually falls between close and open. Warehouses and offices tend toward backflow assemblies, water heaters, restroom fixture groups and the occasional main line repair under slab.
Phoenix plumbing has local character worth understanding before you sign anything. Municipal water here is hard, and scale builds fast in water heaters, tankless units, fixture cartridges and anything with a small orifice, which is why a maintenance program on a large property can genuinely pay for itself. Soil movement across parts of the Valley puts stress on underground drainage, and older commercial buildings in central and south Phoenix still have cast iron waste lines reaching the end of their service life. Summer is the pressure test. When ambient temperatures run past 110 degrees, cold water lines are not cold, HVAC and plumbing failures cluster in the same weeks, and every contractor in Maricopa County is running short-staffed. That is the season when a standing relationship with a contractor matters more than a low bid.
The Google Business Profile shows 4.5 from 702 reviews as of September 27, 2026. That is a substantial volume for a contractor whose main clients are commercial rather than residential, and a 4.5 average over that many reviews suggests consistency with a normal share of dissatisfied callers rather than a curated set. Hours are published as open 24 hours, seven days, and the website repeats a 24/7 emergency line. Social presence runs through LinkedIn, Facebook and YouTube under the Diamondback Mechanical name.
Who is this a poor fit for? A homeowner in Ahwatukee with a running toilet is probably better served by a residential outfit with flat-rate pricing and a marked van in the neighbourhood every day. Diamondback Plumbing describes its work in terms of portfolios, capital projects and long-term partnership, and the structure of a company like that, with a projects division and a dispatch team, is built for repeat volume.
Before hiring, ask for the ROC licence number and confirm it is current and classified for the work in question, since Arizona tracks commercial and residential plumbing classifications separately. Ask how after-hours calls are billed, whether that is an overtime rate, a trip charge or a flat emergency fee, and get it in writing rather than over the phone. On larger jobs, ask who pulls the permit with the City of Phoenix or the relevant municipality, and who handles inspection scheduling. For multi-family clients, ask about tenant notification procedure and what happens if a unit is inaccessible on the scheduled day. For anything involving a repipe or a sewer replacement, ask for scope in writing with line items, a warranty term on both parts and labour, and clarity on whether that warranty transfers if the property is sold. Camera footage before and after a sewer job is reasonable to request.
Compared with the broader Phoenix market, where dozens of firms compete on residential drain cleaning and water heater replacement, the commercial and multi-family focus here narrows the field considerably. Fewer contractors in the Valley are set up to hold a maintenance contract across a portfolio and also mobilise for a capital replacement. That specialisation is the main reason to call, and the main reason a single-family homeowner might look elsewhere.
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.
Reputation by Source
We show each source separately rather than blending them into a single score, because they measure different things.
Google
4.5/ 5
702 customer reviews
Project Photos
Business-submitted, reviewed by our editors
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Diamondback Plumbing FAQs
Does Diamondback Plumbing work on single-family homes?
The company positions itself around multi-family and commercial property, so a single-family call may not be its core work. Its published services cover apartment complexes, townhome communities, restaurants, retail, offices and warehouses. If you own a house and need a repair, it is worth asking directly whether they take residential calls before booking.
Is emergency service really available 24 hours?
Published hours list open 24 hours every day, and the website advertises a 24/7 emergency line for the metro area. What is not published is how after-hours work is billed. Ask whether there is an overtime rate, a trip charge or a flat emergency fee, and confirm it before a technician is dispatched.
What areas does the company cover?
Phoenix, Scottsdale, Mesa, Tempe and surrounding communities within Maricopa County, according to its own coverage page. The office sits at 17423 N 25th Ave in North Phoenix, near the I-17 corridor, which makes north and central Valley response reasonably quick. For properties on the outer edges of the county, confirm coverage when you call.
How is Diamondback Plumbing rated?
Its Google Business Profile shows 4.5 out of 5 from 702 reviews, read on September 27, 2026. That review volume is high for a contractor whose work skews commercial. As always, read the one and two star reviews as well as the top ones, since they tell you how the company handles things when a job goes sideways.
Why does the website say Diamondback Mechanical?
The company appears to use both names for the same operation, with the same North Phoenix address and the same contact details. Mechanical reflects the combined plumbing and HVAC offering. If you reach someone answering as Diamondback Mechanical, you have the right business.
What should I ask before signing a maintenance agreement?
Ask what is included per visit, how often technicians attend, and what falls outside the agreement and gets billed separately. For Phoenix properties, hard water scale in water heaters and fixtures is a recurring issue, so check whether descaling and flushing are covered. Also clarify response time commitments for emergency calls under the agreement, and the term and cancellation terms.
Do they handle permits on larger jobs?
Permits are standard on repipes, sewer replacements and most water heater installations in Phoenix, but the profile does not state who files them. Confirm in writing whether the contractor pulls the permit with the relevant municipality and schedules inspections, or whether that responsibility sits with the property owner.
Is Diamondback Plumbing licensed and insured?
We have no credential records on file for this company yet. Ask for the certificate directly from the insurer before booking work.
What areas does Diamondback Plumbing serve?
Phoenix. 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 Diamondback 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.
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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
- Profile last updated
- September 27, 2026
- Google review data updated
- September 27, 2026
- Sources checked
- Google Business Profile, Company website
- Sponsorship status
- No commercial relationship