Honolulu's Licensed Plumber

HI GRADE
Quality.
Every Job.

HI Grade Plumbing is built on one thing: doing the work right. Licensed, experienced, and trusted by Honolulu homeowners and contractors -- from quick repairs to full remodels, every job gets the same commitment to quality.

Get a Free Estimate (808) 393-0015
Licensed & Insured
Same-Day Response
Free Estimates
5-Star Yelp
Work Done Right
8+
Years in Honolulu
5.0
Yelp Rating
24/7
Always Reachable
LIC
Hawaii Licensed · PJ-13579
Free Estimate

No spam. No sales pitch. We'll get back to you fast.

Licensed & Insured
Same-Day Response
Quality Guaranteed
Free Estimates
5-Star Yelp Rated
The HI Grade Standard

Honolulu's Standard
for Quality Work.

The big plumbing companies run volume. Dispatch a tech, close the ticket, move on. You don't always know who's showing up or whether they actually care about the outcome.

HI Grade is different. When you call us, the owner answers. The same person who picked up the phone does the work -- and their name is on every job.

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No dispatch roulette

We're available 24/7 and respond fast. When we show up, it's a licensed contractor doing the work -- not a helper, not a sub. If something's not right, the buck stops with us.

Flat-rate pricing, no surprises

We price by the job, not the hour. You get a flat rate upfront before anything starts -- no diagnostic fees to walk in the door, no invoice that looks nothing like the quote.

We don't move on until it's right

One sloppy job travels fast on this island. Every job gets treated like the next customer is watching -- because in Honolulu, they probably are.

Hawaii Licensed & Insured
State license PJ-13579. Fully insured on every job. Not a helper, not a sub -- a licensed contractor who's accountable for the work.
Built on Results
Strong Yelp ratings and repeat customers aren't a marketing strategy -- they're what happens when the work is done right. We stay busy because people come back and send their neighbors.
Fast, Reliable Response
Reach us 24/7 by call or text at (808) 393-0015. We respond fast, follow through on estimates, and keep you updated -- no chasing us down required.
Flat-Rate Pricing
We price by the job, not the hour. You get a flat rate before anything starts -- no upselling, no "diagnostic fees," no invoice that looks nothing like the quote.
Hawaii-Specific Expertise
Oahu's aging cast-iron sewer lines, the local water chemistry, the quirks of older Honolulu construction -- we know this island's plumbing inside out.
What we do

Our Services

Residential and light commercial plumbing across Oahu. Every job staffed by licensed, experienced plumbers who take pride in getting it right.

Toilets & Faucets

Running, leaking, or clogged -- we repair or replace fast. Quality fixtures installed to last, not just to pass a checklist.

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Water Heaters

Gas, electric, solar and tankless. Same-day installs and replacements available. We carry common units and get most jobs done in one visit.

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Drain Cleaning

Hawaii's aging cast-iron lines clog differently than PVC. We diagnose the actual problem and fix it properly -- not a quick snake that buys you three months.

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Gas Piping

New gas line installs, appliance hookups, old line repairs and safety inspections. Everything done to Hawaii code by a licensed contractor.

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Sewer Repair

If your drains back up every few months, you likely have a broken sewer line -- not a clog. We find it, diagnose it, and fix it for good. No more recurring visits.

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Remodels

Full bathroom and kitchen plumbing for renovations. We coordinate with your GC or work independently -- whatever keeps your project on schedule.

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5★
Yelp Rated
About HI Grade

Local Craft.
Real Results.

HI Grade Plumbing LLC is a Hawaii-licensed, fully insured plumbing company based in Honolulu. We handle everything from routine repairs to large-scale remodels -- residential and light commercial.

Backed by five-star Yelp reviews and repeat customers across Oahu, we've built a reputation for showing up on time, communicating clearly, and getting it right the first time. No runaround, no surprises on the invoice -- just quality work backed by a state license and a team that takes pride in it.

Hawaii Licensed · PJ-13579
Fully Insured
Honolulu-Based & Operated
5-Star Yelp Rating
Residential & Light Commercial
Free Estimates Always
Embed Google Map -- All of Oahu
Where We Work

Serving All
of Oahu

Based in Honolulu, we serve the entire island of Oahu. If you're on Oahu, we can get to you.

Honolulu Kaimuki Manoa Hawaii Kai Kailua Kaneohe Pearl City Aiea Ewa Beach Mililani Kapolei Salt Lake Makiki Nuuanu Palolo Waikiki
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Easy Payment

Flexible Ways
to Pay

We keep payment simple and stress-free. No surprises on the invoice -- your estimate is what you pay.

Credit & Debit
Visa, Mastercard, Amex accepted on all jobs.
Venmo & Zelle
Fast and easy digital transfers accepted.
Check & Cash
Traditional payment always welcome.
Upfront Pricing
Your estimate is your price. No hidden fees added at the end.
Instant AI Estimate

Get a Ballpark
Before You Call.

Describe your plumbing issue, upload a photo if you have one, and our AI will give you a rough cost range based on typical Honolulu pricing -- instantly, no contact info required.

Disclaimer

This estimate is generated by AI for budgeting purposes only. It is not a quote or contract. Final pricing depends on actual site conditions, materials, and scope of work. A licensed HI Grade plumber will provide your official estimate after inspection.

Works best with a clear description -- "water heater not heating," "toilet runs constantly," "kitchen drain slow"

Adding a photo helps the AI identify fixtures, pipe types, and access conditions

Ranges reflect typical Honolulu labor and materials -- Hawaii costs run higher than mainland averages

Describe Your Job

Click or drag a photo here

JPG, PNG, HEIC up to 10MB

Your Contact Info -- so we can follow up
What Honolulu homeowners say

Reviews

5.0 on Yelp

"Jake came out same day and had our water heater fixed before dinner. Super professional, walked us through everything, and the price was exactly what he quoted. Won't call anyone else on Oahu."

Maria T.
Kaimuki · Water Heater Repair

"Had a major sewer backup on a Sunday. Two other plumbers just wanted to snake it again. Jake actually diagnosed the broken line and fixed it properly. Finally done with the problem for good."

David K.
Manoa · Sewer Line Repair

"Full bathroom remodel -- the plumbing was flawless. Showed up when he said he would, kept things clean, passed inspection first try. You can tell he actually cares about the work. Rare to find on Oahu."

Lani M.
Hawaii Kai · Bathroom Remodel
Got questions

We've Got
Answers.

Can't find what you need? Call or text -- our team responds fast.

(808) 393-0015
Yes -- always. Call, text (808) 393-0015, or fill out the form. No obligation, no pressure -- we'll come take a look and give you a straight answer.
No -- never. When you hire HI Grade, the licensed owner shows up and does the work. From first call to final inspection, you're dealing with one person who's accountable for everything.
All of Oahu. Honolulu, Kaimuki, Manoa, Hawaii Kai, Kailua, Kaneohe, Pearl City, Aiea, Ewa Beach, Mililani, Kapolei, Waikiki and everywhere in between. If you're on the island, we can get to you.
Most inquiries get a same-day response. For urgent issues -- active leaks, sewer backups, water heater failures -- call or text directly at (808) 393-0015 for the fastest turnaround.
Yes. HI Grade Plumbing LLC is Hawaii state licensed (PJ-13579) and carries full liability insurance. We can provide proof of both on request -- no problem.
For urgent situations -- burst pipes, major leaks, sewer backups -- call (808) 393-0015 directly. We respond same day for emergencies and keep you updated every step of the way.
If your drain keeps backing up a few months after being snaked, you likely have a broken or collapsed sewer line -- especially common in Honolulu's older homes with cast-iron pipes. Snaking clears the clog temporarily, but doesn't fix the underlying problem. We can diagnose the actual issue and fix it for good.

Ready to Get
It Fixed Right?

Licensed, experienced, and trusted by Honolulu homeowners and contractors. Call or text for a fast response and a free estimate -- serving all of Oahu.

Call or text anytime (808) 393-0015
or
Get a free estimate online