Best plumbers in Perth metro for new builds & construction
This list ranks Perth metro plumbers on their track record with new build and construction work, using our methodology to score real review evidence for site work, staged inspections, and builder-facing jobs.
For a broader view across all job types, not just construction, see the overall Perth plumbers ranking. The order here reflects construction-specific evidence: reviewers mentioning new builds, renovations, granny flats, and builder relationships weigh more heavily than general repair praise.
Every business on this list has review evidence for new builds & construction. The full field is ranked in the overall ranking.
Picks are ranked by score and relevance to plumber, so a lower overall score can rank higher here.
At a glance
| # | Business | Score | Rating | From | Best for |
|---|---|---|---|---|---|
| 1 | The Plumbing & Electrical Co. | 92 | 5 (110) | — | Full-scope construction plumbing |
| 2 | Superior Plumbing Drainage & Gas | 91 | 4.9 (145) | — | Water main & sewer work on site |
| 3 | Fremantle Plumbing Service | 88 | 4.8 (85) | — | Documented, staged builds |
| 4 | Gun Barrel Plumbing & Gas | 88 | 5 (50) | — | Northern suburbs new build projects |
| 5 | Valentini Plumbing And Gas | 86 | 5 (29) | — | Long-term builder relationships |
| 6 | West Coast Plumbing & Gas | 82 | 4.9 (40) | — | Honest quoting on renovation-scale jobs |
| 7 | Sexton Plumbing and Gas | 81 | 5 (24) | — | Copper work & new build fit-outs |
| 8 | Majestic Plumbing | 80 | 4.6 (50) | — | Diagnosing issues left by other trades |
| 9 | DDW Plumbing and Gas | 79 | 5 (18) | — | Commercial-ready admin & granny flats |
| 10 | MI Plumbers | 77 | 4.9 (12) | — | Commercial & industrial new builds |
| 11 | Newland Plumbing & Gas Pty Ltd | 76 | 5 (21) | — | Clear communication on multi-stage jobs |
| 12 | ProPlumbWA | 74 | 5 (21) | — | On-time, on-budget renovations |
| 13 | Kingdom Upgrades | 73 | 5 (6) | — | Combined tiling & plumbing on renovations |
| 14 | Routy's Plumbing and Gas Pty Ltd | 72 | 4.6 (30) | — | Deadline-driven renovation delivery |
| 15 | Plum Plumbing and Gas | 69 | 4.7 (22) | — | Builder-trusted fast callouts |
Ranked picks

The Plumbing & Electrical Co.
Why it ranks first
With over a hundred five-star reviews and named technicians covering everything from tap swaps to full bathroom renovations, this is a team that can carry a construction job from rough-in to final fixtures without dropping the ball. Reviewers specifically call out willingness to tackle awkward, non-standard work, which matters when a build throws up surprises.
Pros
- 100% five-star rating across 110 reviews
- Named technicians praised individually for construction and renovation work
- Transparent upfront pricing with no surprises on site
- Handles emergency callouts within 4 hours if a build hits a snag
Services: hot water systems, drain blockage, new home construction plumbing, emergency plumbing

Superior Plumbing Drainage & Gas
Why it ranks second
Staff named repeatedly for handling drainage, water main, and sewer issues make this a strong pick for the underground and civil-adjacent work that new builds require. Reviewers highlight careful site restoration, reinstating pavers and surfaces without a trace, which is exactly the finish quality a build site needs.
Pros
- Named technicians with strong reputations across construction-relevant jobs
- Quick turnaround even on urgent underground issues
- Transparent quoting before work starts
- Careful attention to restoring the site afterward
Services: drain blockage, new home construction plumbing, bathroom renovation plumbing, emergency plumbing

Fremantle Plumbing Service
Why it ranks third
Detailed photo updates during underground work and clear before-and-after documentation make this team a good match for builds where staged sign-off matters. Multiple named technicians, including Tom Kennedy for perseverance on tricky problems, back up a consistently clean and professional record with no complaints in the review set.
Pros
- Same-day and emergency response when a build schedule slips
- Named technicians with strong track records on complex jobs
- Photo documentation during underground and staged work
- Clean, tidy site management throughout
Services: emergency plumbing, roofing and gutters, plumber, gas installation service

Gun Barrel Plumbing & Gas
Why it ranks fourth
Over 23 years operating and Type B certified, Gary covers both scheduled renovation work and crisis call-outs with the same professionalism, which suits builders juggling multiple site timelines. Reviewers note honest pricing and technical skill across routine maintenance and more complex jobs.
Pros
- 24/7 emergency availability if a build runs into issues after hours
- Honest, transparent pricing
- Over 23 years of experience
- Type B certified for gas and specialised work
Services: new home construction plumbing, bathroom renovation plumbing, emergency plumbing, plumber

Valentini Plumbing And Gas
Why it ranks fifth
Luke's team gets called out specifically for new build work alongside renovations and emergencies, with reviewers citing decade-plus relationships that speak to reliability over repeat projects. First-time fixes and same-day availability matter when a build can't afford delays waiting on a second visit.
Pros
- Consistently first-time fixes reported
- Same-day emergency response
- Long-term customer retention, including repeat builder relationships
- Strong attention to detail from a professional crew
Watch out: Review volume is moderate (29 reviews), so the track record, while strong, is based on a smaller sample.
Services: emergency plumbing, gas fitting, plumber, gas installation service

West Coast Plumbing & Gas
Why it ranks sixth
Over 50 years operating with both plumbing and gas fitting licenses, this team is known for refusing to oversell work and spotting real problems before recommending fixes, a useful trait when scoping construction jobs. Darryl is named repeatedly for transparent communication that contrasts with inflated quotes from bigger firms.
Pros
- Over 50 years in operation
- Licensed for both plumbing and gas fitting
- Often waive call-out fees for diagnosis
- Honest about what genuinely needs fixing
Watch out: One complaint about a staff member's honesty with rental tenants and some unclear invoice itemisation.
Services: gas fitting, gas installation service, plumber, emergency plumbing

Sexton Plumbing and Gas
Why it ranks seventh
Oliver and his team have handled new builds alongside bathroom renovations and complex copper work on difficult bends, all under a perfect five-star record. Fast turnaround, often same-day, is a real asset when a build schedule is tight.
Pros
- Same-day or next-day turnaround on most jobs
- Owner Oliver Sexton responds personally
- Specialist copper work for demanding fit-outs
- Clean, tidy job sites consistently
Watch out: Review count (24) is on the smaller side, though sentiment is uniformly positive.
Services: emergency plumbing, gas fitting, plumber, gas installation service

Majestic Plumbing
Why it ranks eighth
Over 40 years in business with both gas fitting and plumbing contractor licenses, this team is repeatedly credited with finding problems other tradespeople missed, using acoustic and tracer gas leak detection. That diagnostic strength is valuable on construction sites where hidden issues can otherwise surface after handover.
Pros
- Advanced leak detection technology for tricky sites
- Named technicians praised individually
- Over 40 years of licensed experience
- Track record fixing other trades' mistakes
Watch out: A minority of reviewers report surprise bills above the quoted price and some access/parking planning issues.
Services: emergency plumbing, plumber, drain blockage, hot water systems

DDW Plumbing and Gas
Why it ranks ninth
Dan's willingness to handle purchase orders and correct invoicing without fuss makes him a practical choice for builder-facing jobs, and reviewers specifically mention granny flat builds and multi-day renovation projects. Perseverance on tough physical work, like jackhammering through limestone, backs up the problem-solving reputation.
Pros
- Same-day and next-day response
- Refuses unnecessary upselling
- Handles complex ground conditions like limestone
- Commercial-ready invoicing and PO handling
Watch out: Based on 18 reviews, so it's a smaller sample despite the perfect rating.
Services: emergency plumbing, gas fitting, plumber, gas installation service

MI Plumbers
Why it ranks tenth
Licensed for commercial and industrial work with a track record dating back to 2004, this outfit is named directly for new build projects by at least one reviewer who switched from a cheaper provider. That's a meaningful signal for anyone weighing cost against reliability on a build.
Pros
- Established since 2004
- 24/7 emergency availability
- Licensed for commercial and industrial work
- Reviewer-cited track record on new build projects
Watch out: Review volume is low (12 reviews), so treat the record as promising but still thin.
Services: new home construction plumbing, emergency plumbing, plumber, gas installation service

Newland Plumbing & Gas Pty Ltd
Why it ranks #11
Nick's habit of sending photos and ETA updates suits construction jobs where builders need to track progress without being on site constantly. All 21 reviews are five-star, spanning everything from hot water systems to bathroom plumbing, with no complaints recorded.
Pros
- Named technician known for responsiveness
- Transparent quoting
- Tidy work across job types
- Handles full range from emergencies to new-build work
Watch out: Confidence is rated low given the review volume, though sentiment is consistently strong.
Services: new home construction plumbing, emergency plumbing, roofing and gutters, gas fitting

ProPlumbWA
Why it ranks #12
Oliver personally handles the work and has built a consistent five-star history over ten years, with reviewers noting jobs completed on time and on budget, a key concern for any construction schedule. Transparency about material costs and options adds confidence when scoping a build.
Pros
- Owner directly handles the work
- Consistent five-star history over 10 years
- Transparent about material costs and options
- Completes jobs on time and on budget
Watch out: Based on 21 reviews, so the sample is modest despite the long track record.
Services: hot water systems, new home construction plumbing, emergency plumbing, bathroom renovation plumbing

Kingdom Upgrades
Why it ranks #13
Zac and Caleb handle tiling and plumbing in-house, which keeps quality consistent across trades on a renovation or build-out, and reviewers specifically praise their handling of mid-project changes without friction. This suits smaller construction jobs in older homes where scope shifts once walls come open.
Pros
- Tiling and plumbing done in-house for consistent quality
- Handles mid-project changes with professionalism
Watch out: Only 6 reviews recorded, so this is an early-stage track record worth confirming directly.
Services: new home construction plumbing, emergency plumbing, bathroom renovation plumbing, plumber

Routy's Plumbing and Gas Pty Ltd
Why it ranks #14
Tom and Lucas earn repeated praise for finishing renovation and maintenance jobs ahead of schedule and within budget, which is exactly what a construction timeline needs. The team's tidy site work and weekend availability add flexibility for builders working around tight windows.
Pros
- Named plumbers with repeat client loyalty
- Emergency and weekend availability with same-day quotes
- Finishes ahead of schedule and within budget
- Tidy sites and professional cleanup
Watch out: A GST omission on one quote and separate driving conduct complaints have been noted, though they don't reflect on-site plumbing quality.
Services: drain blockage, new home construction plumbing, gas installation service, emergency plumbing

Plum Plumbing and Gas
Why it ranks #15
Carl is specifically noted as trusted by builders and repeat homeowners, with a reported 30-minute callout response that's useful when a build hits an unexpected snag. Decades of largely five-star feedback back up the honesty and cost transparency reviewers describe.
Pros
- Fast response to emergencies, around 30 minutes reported
- Clear upfront pricing
- Trusted by builders and repeat homeowners
- Owner-operator personally handles jobs
Watch out: One vague complaint about substandard work exists against an otherwise strong record.
Services: emergency plumbing, gas fitting, plumber, gas installation service
How was this ranking calculated?
| Signal | Weight |
|---|---|
| Review sentiment | 28% |
| Google rating | 26% |
| Review volume | 20% |
| Profile completeness | 16% |
| Review recency | 10% |
Ranking data checked 2026-09-05 · Full methodology ›
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