- Source reference
- NAT-100521-3
- Valid through
- May 2029
- Source checked
- Jul 11, 2026
Public evidence profile
Herman's Plumbing Inc
Credentials & registries
US EPA Lead Renovation Repair and Painting Program
No Trust Score yet
- Rated 4.8 from 765 reviews
- 1 credential shown
Based on rating, review volume, independent sources and credential evidence. Evidence context, not a guarantee of workmanship.
Reviews · public evidence
What customers say
These review totals are published independently on the named public source below, not testimonials this business chose to show. We show the aggregate rating, review volume, and source attribution we hold so you can weigh the evidence yourself.
4.8out of 5
Where these reviews are published
- Porch765 reviews · 4.8 avg
Local context
Rated 4.8, above the local average for plumbers in Oklahoma City
Across 10 plumbers in Oklahoma City, the typical rating is 4.5 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
Credentials and associations
1Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
Sources
2 named public sourcesWhere this information comes from
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Review sources
Registers and membership directories
Check dates vary by source. Where we hold a date, the check shows it.
About
We are a family-owned and operated business that has been successfully passed on for three generations! We strongly believe in the principles of hard work, combined with a customer service policy that is second to none.
Your own checks
What to check before you hire
Worth checking yourself
Always confirm credentials and quotes with the business directly before hiring.
Agree the callout fee, the hourly or fixed rate, and whether parts are charged on top, in writing, before an emergency plumber starts. Out-of-hours overcharging and 'while I'm here' add-ons are common complaints.
Be wary of a plumber who, on a first visit, says your whole system or boiler must be replaced. Get a second opinion and an itemized quote (parts and labor separately) before agreeing to major work.
Gas work is licensed separately from general plumbing in most states. Make sure anyone working on a gas appliance or gas line is licensed for gas work under your state's rules, and ask for proof of that license before they start.
Want an extra legitimacy check? Run the Rogue Contractor Check on Herman's Plumbing Inc before you contact them.
Run Rogue Contractor Check →Good to know
Common questions about Herman's Plumbing Inc
Is Herman's Plumbing Inc a legitimate business?
Herman's Plumbing Inc has 765 independent public reviews, rated 4.8 out of 5. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about Herman's Plumbing Inc?
Herman's Plumbing Inc has 765 public reviews, averaging 4.8 out of 5. The reviews section shows the aggregate rating, review volume, and review source information we hold.
How do I know Herman's Plumbing Inc's reviews are genuine?
Herman's Plumbing Inc's 765 public reviews come from a named public review source. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show the review source information and aggregate rating we hold rather than selling rankings, so you can weigh the evidence for yourself.
Is Herman's Plumbing Inc qualified and accredited?
We hold 1 independently sourced credential for Herman's Plumbing Inc, including US EPA Lead Renovation Repair and Painting Program. Each is attributed to the body that issued it in the credentials section. For example, US EPA Lead Renovation Repair and Painting Program is the US EPA's Lead-Safe certification: required for firms that disturb paint in homes built before 1978, to guard against lead exposure.
