9 Best Plumbers in Honolulu for 2026

Plumbing in Honolulu comes with its own set of challenges that mainland homeowners rarely deal with. The island's humid, salt-heavy air accelerates corrosion on exposed pipes, and older neighborhoods like Kaimuki, Manoa, and Palolo still have plenty of homes with original galvanized steel supply lines that are well past their useful life. Hard water is a real issue across Oahu, and mineral buildup in fixtures, water heaters, and supply lines is a routine complaint. Many properties also sit on compact lots with aging slab foundations, which makes leak detection and under-slab repair more involved than a standard above-ground fix. Add in the fact that volcanic basalt soil can shift enough to stress buried drain lines, and it's clear that hiring a plumber who knows the local housing stock matters.

Every business on this page was drawn from third-party public business listings and ranked by review rating and review count, with a small lift applied to businesses that show a working website and a reachable phone number. From there, we check each business's homepage to confirm that plumbing is what they primarily do, which keeps unrelated trades off the page. Any listing flagged as permanently closed is removed automatically. Where you see a Trust Verified badge next to a business name, that business has gone further and passed our full independent verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information. You can see exactly what that process involves on our How We Verify page. Businesses without the badge have not been independently verified by us, so those checks are on you before you book.

Before you call anyone, it's worth spending five minutes on a few practical steps. Ask every plumber for a written estimate that breaks out parts and labor separately, not just a single lump-sum figure. A straightforward toilet replacement or shut-off valve swap might run $150 to $350 in Honolulu, while a full water heater replacement with a 50-gallon tank can land between $900 and $1,800 depending on the unit and access. Repiping a mid-sized home from galvanized to copper or PEX can start around $4,000 and climb from there. Get at least two or three quotes, especially for bigger jobs. Check that whoever you hire carries a current Hawaii plumber's license, either a journeyman or master classification, and ask to see proof of general liability insurance before any work starts. Don't skip the final walkthrough before you sign off on the job.

How We Select & Rate The Best Plumbers in Honolulu, HI

Rankings on this page are driven by public review rating and review count pulled from third-party business listings, with a small lift for businesses that have a working website and a reachable phone number. We check each business's homepage to confirm that plumbing is their primary trade, which keeps unrelated businesses off the page. Listings flagged as permanently closed are removed automatically. Where a Trust Verified badge appears, that business has additionally passed our full verification covering qualifications, insurance, trading history, customer review history, and registered company information. See our How We Verify page for the full list. All other businesses on this page have not been independently verified by us, and inclusion is not an endorsement. Always do your own checks before hiring.

Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →

Quick Comparison — Plumbers in Honolulu, HI

#	Business	Rating	Reviews	Phone
1	535 Plumbing LLC	⭐ 4.9	695	(808) 300-0535	View →
2	Allens Plumbing	⭐ 4.7	949	(808) 599-5511	View →
3	Rock-O-Rooter, LLC	⭐ 4.9	307	(808) 217-9453	View →
4	Pipe Masters	⭐ 4.9	282	(808) 396-7473	View →
5	Waialae Plumbing & Construction	⭐ 4.9	266	(808) 735-8595	View →
6	P & S Plumbing Honolulu	⭐ 5.0	158	(808) 842-0345	View →
7	Alpha Omega Plumbing Inc	⭐ 4.9	74	(808) 847-5414	View →
8	EverTrust Plumbing	⭐ 4.7	59	(808) 841-9649	View →
9	Point Plumbing	⭐ 5.0	8	(808) 848-8821	View →

Our Top Picks

535 Plumbing LLC

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★★★★★ 4.9 (695 reviews)

Honolulu, HI (808) 300-0535

Rated 4.9 stars across nearly 700 Google reviews, 535 Plumbing LLC has built a strong reputation among Honolulu homeowners and businesses. The company handles residential and commercial plumbing work in the 96817 area and surrounding neighborhoods. That volume of consistent customer feedback points to reliable service delivery rather than the occasional standout job.

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Allens Plumbing

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★★★★★ 4.7 (949 reviews)

Honolulu, HI (808) 599-5511

Fixture installation and repair work sits at the core of Allens Plumbing, a Honolulu-based outfit serving residential and commercial customers across Oahu. With a 4.7-star rating drawn from nearly 950 reviews, the company has built a consistent record across the island's varied neighborhoods. Allens Plumbing covers the 96819 corridor and surrounding zip codes, making it a practical option for customers outside central Honolulu.

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Rock-O-Rooter, LLC

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★★★★★ 4.9 (307 reviews)

Honolulu, HI (808) 217-9453

Rated 4.9 stars across 307 Google reviews, Rock-O-Rooter, LLC has built a consistent record among Honolulu residents seeking reliable plumbing service. The company handles drain clearing, pipe repair, and related plumbing work for residential and commercial customers across the island. That rating, drawn from a substantial review base, points to results rather than reputation alone.

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Pipe Masters

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★★★★★ 4.9 (282 reviews)

Honolulu, HI (808) 396-7473

Pipe Masters is a plumbing contractor serving Honolulu, with a 4.9-star rating across 282 Google reviews pointing to consistent work quality. The company handles residential and commercial plumbing needs across the island, from leak repairs and pipe replacements to water heater installations. Its service area centers on the 96824 zip code and surrounding Oahu communities.

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Waialae Plumbing & Construction

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★★★★★ 4.9 (266 reviews)

Honolulu, HI (808) 735-8595

Combining plumbing and general construction under one contractor, Waialae Plumbing & Construction serves Honolulu residents with repairs and installations that cross trade lines. The dual-scope model suits remodel projects where plumbing and structural work overlap. A 4.9-star rating drawn from 266 Google reviews points to consistent results across both sides of the business.

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P & S Plumbing Honolulu

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★★★★★ 5.0 (158 reviews)

Honolulu, HI (808) 842-0345

Water heater installation and repair is a core focus at P & S Plumbing Honolulu, a plumbing service operating out of the 96819 area. The company holds a five-star rating across 158 Google reviews, a consistent record that points to reliable work rather than occasional good luck. Residential and commercial customers in Honolulu call on them for everything from fixture replacements to diagnosing mineral buildup in aging pipe systems.

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Alpha Omega Plumbing Inc

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★★★★★ 4.9 (74 reviews)

Honolulu, HI (808) 847-5414

Honolulu residents and commercial property owners rely on Alpha Omega Plumbing Inc for water heater installs, leak repairs, and general pipe work across the 96819 area. A 4.9-star rating across 74 Google reviews reflects consistent results for local clients. The company operates throughout the city, handling jobs for both homeowners and businesses.

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EverTrust Plumbing

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★★★★★ 4.7 (59 reviews)

Honolulu, HI (808) 841-9649

Honolulu residents and businesses in the 96817 area rely on EverTrust Plumbing for repairs, installations, and routine maintenance. The company holds a 4.7-star rating across 59 Google reviews, reflecting consistent work across a range of residential and commercial jobs. EverTrust Plumbing covers water heater service, fixture replacement, and leak repair without subcontracting the core work out.

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Point Plumbing

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★★★★★ 5.0 (8 reviews)

Honolulu, HI (808) 848-8821

Fixture installation and repair work forms the core of what Point Plumbing offers residents across Honolulu. The company holds a perfect 5-star rating across its Google reviews, reflecting consistent results on residential jobs. Locally owned and focused on the Oahu market, it handles everything from minor leaks to full bathroom plumbing setups.

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Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →

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Frequently Asked Questions

How much does a plumber cost in Honolulu?

Most Honolulu plumbers charge a service call fee in the range of $75 to $150 just to show up, and that's before any work begins. Hourly labor typically runs $90 to $160 per hour depending on the job type and the company. For common repairs, a leaky faucet fix might come to $100 to $250 all in, while clearing a blocked drain usually costs $150 to $350. A water heater replacement with a standard 40- or 50-gallon tank, including labor and disposal of the old unit, generally falls between $900 and $1,800. Larger projects like repiping a house from old galvanized lines to copper or PEX can start around $4,000 for a smaller home and go well above $10,000 for a larger property with difficult access. Island shipping costs push up the price of parts compared to the mainland, so factor that in. Getting two or three written quotes is the normal way to avoid overpaying.

Do plumbers in Honolulu need to be licensed?

Yes. Hawaii requires plumbers to hold a state-issued license, and the Hawaii Department of Commerce and Consumer Affairs handles this. There are journeyman and master plumber classifications. A licensed master plumber can pull permits and take on full plumbing contracts, while journeyman plumbers typically work under a master's supervision. Before any work starts, ask to see the plumber's license number and verify it on the DCCA's online license search. Don't just take someone's word for it, especially for permit-required work like water heater replacements or new fixture installations. Hiring an unlicensed contractor can leave you liable if something goes wrong, and it may also create problems when you sell the property.

What plumbing problems are most common in Honolulu homes?

A few issues come up again and again here. Older homes in neighborhoods like Kaimuki, Nuuanu, and Moiliili frequently have galvanized steel supply pipes that are corroding from the inside out, reducing water pressure and eventually failing. Mineral buildup from Oahu's hard water is a regular nuisance, clogging showerheads, aerators, and water heater elements faster than in softer-water areas. Salt air accelerates corrosion on any exposed metal fittings, particularly in homes close to the coast in places like Hawaii Kai or Kaneohe. Sewer line problems are also fairly common, partly because older clay or cast iron drain lines degrade over time and tree roots find their way in. Water heater failures are frequent, partly because the mineral content speeds up element and anode rod wear.

How long does a typical plumbing job take in Honolulu?

Simple jobs like fixing a running toilet, replacing a faucet, or swapping out a shut-off valve usually take one to three hours. A water heater replacement generally takes two to four hours for a straightforward swap, though if the space is tight or the unit needs a permit inspection, add time for that. Drain cleaning with a snake or hydro-jetting typically takes one to two hours. More involved work like repiping a whole house can take several days, and jobs that require permit inspections will have gaps built in for the inspector to visit before walls get closed up. Parts availability can occasionally be a factor on Oahu since specialty items sometimes have to be shipped from the mainland, so for complex jobs it's worth asking upfront about lead times.

Should I get a permit for plumbing work in Honolulu?

For most significant plumbing work, yes, a permit is required under the Honolulu City and County building code. This includes water heater replacements, new fixture installations, any work that touches the drain-waste-vent system, and repiping projects. Minor repairs like fixing a leaking faucet or replacing an exposed shut-off valve typically don't need a permit, but if you're unsure, ask your plumber before work starts. A licensed plumber in Honolulu will know what triggers a permit requirement and should be willing to pull one. Don't let anyone talk you out of a permit on a job that needs one. Unpermitted work can cause real headaches when you sell the property or make an insurance claim, and it means the work never got a proper inspection.

How do I choose between plumbers in Honolulu?

Start by confirming the plumber's Hawaii state license number through the DCCA's online lookup before you call anyone back. Then ask each company directly whether they carry general liability insurance, and request a certificate of insurance rather than just a verbal confirmation. Read through recent reviews on public business listings, paying attention to comments about showing up on time, communicating clearly about pricing, and fixing things right the first time. Ask for a written, itemized estimate that separates parts from labor, and be cautious of any contractor who quotes only a single number with no breakdown. For bigger jobs, get at least three quotes so you have a realistic sense of market rates. Ask specifically whether the plumber has handled similar work in Honolulu, since local experience with older housing stock, island-specific materials, and the permit process here genuinely matters. If a business has a Trust Verified badge on this page, you can have more confidence that their credentials have been checked independently, but for any business without that badge, those checks are your responsibility.

9 Best Plumbers in Honolulu for 2026

Quick Comparison — Plumbers in Honolulu, HI

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