Neilson Roy Plumbing
Licensed plumber in Northridge, Los Angeles, California
Neilson Roy Plumbing holds CSLB licence 874056, active, licensed since 8 Mar 2006, rated 4.2 from 21 Google reviews. Bonded for $25,000 with Western Surety Company. Clean CSLB record, with no citations, complaints or legal actions disclosed.
Report card
- Licence activeCSLB #874056, class C36. Issued 8 Mar 2006, expires 31 Mar 2028.
- Licensed 21 yrsSince 8 Mar 2006.
- Bonded$25,000 with Western Surety Company, since 1 Jan 2025. California requires the same $25,000 bond of every contractor.
- Clean CSLB recordNo citations, complaints or legal actions disclosed.CSLB record
- EPA Lead-Safe certifiedFirm NAT-126609-3, valid to 3 Jul 2027. Required for work disturbing paint in pre-1978 homes.
- Website shows the licenceTheir own site displays licence #874056.
- 27 building permits since 2020Pulled under this licence (City of Los Angeles, LADBS), most recently 15 May 2023.
Checked against the Contractors State License Board (CSLB) register on 3 Nov 2026.
About Neilson Roy Plumbing
Roy Neilson Plumbing provides residential and commercial plumbing services in Los Angeles and nearby Southern California areas.
- Founded
- 1973
- Serves
- Los Angeles, San Fernando Valley, Simi Valley, Conejo Valley, Moorpark, Thousand Oaks, Westlake, West Hollywood, Hollywood, Santa Clarita Valley
- Estimates
- Free estimates
- People on the licence
- Diane Marie Delaplane (officer), Francisco Olvera (qualifier, CEO and president)
From Neilson Roy Plumbing's own website, read 3 Nov 2026. We only show what the site states.
Google reviews
4.2(21 reviews)Paul★★★★★ a month ago
I have used Roy Neilson Plumbing for over 20 years, and I have decided to finally take the opportunity to provide it with some much-deserved praise and appreciation for the expert work it has consistently performed for me. First, I have found its office personnel to be very helpful in making appointments and providing me with initial repair assessments and estimates. Secondly, I would note that the plumbers at Roy Ne…
Jenine Flora★★★★★ 7 months ago
We had a blockage in our pipes and reached out to Roy Neilson Plumbing. They responded immediately and got the clog cleared without any hassle. The team was prompt, professional, and made sure everything was spotless before they left. Their pricing was fair as well. Definitely recommend them!
H McCants★★★★★ a year ago
Excellent service. When I called, the person I spoke with was completely up front about their rates and charges. They scheduled me a few days out, but then reached out to let me know they can come earlier due to a cancellation, which was great. The technician, Armando was professional and quick and just like that, our drains are draining again! We will definitely be using them again in the future when the need arises…
Leticia Salazar★★★★★ 7 months ago
, I had a plumbing leak I called another plumbing company to came out and they wanted to charge me a ridiculous amount to fix a small leak . I called Roy Nielsen plumbing , they came out fixed my leak asap reasonably priced not overpriced I will definitely use them again . Thank you Happy customer
Wanda McDaniel★★★★★ 2 years ago
Decades of great service from owner Jerry and his office chief Frank. Reliable and super fair with pricing. They never oversell. Once tried another recommendation and the company tore my kitchen apart with ridiculous updates. Shut them down mid-job. Back to Roy Neilson who couldn’t believe that they installed all new pipes for a clogged drain. Five stars and class act team on the ground. Not a better company in the L…
Read all 21 reviews on Google Reviews and photos from Google, refreshed every 30 days.
Recent permits
Building permits pulled under licence #874056, from City of Los Angeles, LADBS open data. Locations are shown to ZIP code only.
- 15 May 2023 · Plumbing · ZIP 91324Commercial
- 3 Apr 2023 · Plumbing · ZIP 91324Commercial
- 28 Mar 2023 · Plumbing · ZIP 91324Commercial
- 25 Oct 2022 · Plumbing · ZIP 91345Commercial
- 18 Jul 2022 · Plumbing · ZIP 910401 or 2 Family Dwelling
Why it ranks #182 of 1,934 plumbers in Los Angeles
Score 79.9 / 100. Claiming this listing or using Theo never changes it. How we rank
Other top plumbers in Los Angeles
See all 1,934- 1
Liberty Plumbing & Heating
- Licence active
- Bonded
- Workers' comp
- 2
Van Allen Plumbing
- Licence active
- Bonded
- Works alone
- 3
Bryco Plumbing
- Licence active
- Bonded
- Workers' comp
- 4
Water Heater Pro the Inc
- Licence active
- Bonded
- Works alone
- 5
Curtis Plumbing
- Licence active
- Bonded
- Workers' comp
- 6
Jon's Plumbing and Rooter
- Licence active
- Bonded
- Works alone