# OAM Plumbing

**Trade:** Plumbing · **Phone:** (774) 778-4965 · **Website:** https://www.oamplumbing.com/ · **Languages:** English

**Rating: 3.9/5** (medium confidence) — from 22 reviews across 3 sources.
100% of sentiment-scored reviews read net-positive. Last 6 months: 0 reviews, 0 negative.

## The honest read

OAM Plumbing is a Massachusetts plumbing, heating and gas company led by a technician customers call Olsi, whose Massachusetts plumber license is registered but currently shows as expired in the state registry.

All 22 reviews on file are from 2025, and nearly every one is five stars. In a November 2025 review, a Saturday-night boiler heating emergency had Olsi on-site within an hour after several other companies couldn't help; in a December 2025 review, a customer described a fast, calm response to a plumbing emergency, with everything under control within minutes. Several November 2025 reviews describe water heater and boiler installations completed quickly and cleanly, and a December 2025 review described an oil tank issue diagnosed and repaired, with the system confirmed safe before Olsi left. A number of reviewers specifically praised fair, transparent pricing with no surprise charges.

One thing worth confirming directly: the state's plumbing license registry shows OAM Plumbing Gas Heating LLC's license as expired, even though the company's website describes its lead technician as a Master Plumber with over 20 years of experience, and multiple reviewers refer to him the same way. A homeowner should ask to see current, active licensing before hiring for licensed plumbing or gas work.

For plumbing repairs, water heater and boiler installation, and gas or heating-system work, OAM has a deep and specific run of positive 2025 reviews. Given the license status shown in the state registry, confirming current licensing directly is worth doing before booking, especially for gas or heating-system work that requires an active credential.

**Strengths:**
- Fast emergency response — on-site within an hour, even late at night
- Broad heating scope — water heaters, boilers and gas systems installed
- Fair, transparent pricing — reviewers repeatedly cite no surprise charges

**Concerns:**
- Expired license — state registry shows the plumbing license as expired

## Claims & citations

Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication.

- Massachusetts plumber license registry-verified expired, held by OAM Plumbing Gas Heating LLC _(confidence: high)_
  - [State License Registry](https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page) — “MA plumber license 5249-PL-C registry-verified expired — registry holder of record: OAM Plumbing Gas Heating LLC”
- The license shows as expired in the state registry despite the company describing its lead technician as a Master Plumber with over 20 years of experience _(confidence: high)_
  - [Official Website](https://www.oamplumbing.com) — “OAM Plumbing offers plumbing, boiler, water-heater, gas, and heating-system installation and repair services, with a Master Plumber describe…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xSdWVrdExVMVpIVVdKT2JXcFhSa2t6UkRCT2RHYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOlRuektLU1ZHUWJObWpXRkkzRDBOdGc%7C%7C?hl=en) — “5★ On a Saturday night, I had an emergency and needed a plumber due to a heating issue with my boiler.  After contacting several companies w…”
- In a November 2025 review, responded to a Saturday-night boiler emergency within an hour after other companies could not help _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xSdWVrdExVMVpIVVdKT2JXcFhSa2t6UkRCT2RHYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOlRuektLU1ZHUWJObWpXRkkzRDBOdGc%7C%7C?hl=en) — “5★ On a Saturday night, I had an emergency and needed a plumber due to a heating issue with my boiler.  After contacting several companies w…”
- In a December 2025 review, responded quickly and calmly to a plumbing emergency, controlling the situation within minutes _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tGZlNtNXZaMUJMUkhKQlMwNVVUSFkwZFVweGQwRRAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOkFfSm5vZ1BLRHJBS05UTHY0dUpxd0E%7C%7C?hl=en) — “5★ I can’t say enough good things about OAM Plumbing.
We had a plumbing emergency at our home, and Olsi showed up extremely fast. He handled…”
- In a December 2025 review, diagnosed and repaired an oil tank issue and confirmed the system was running safely before leaving _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25aUlUycEZOa3QxYzFob1IzcEhTRGhvY214c2RGRRAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOnZRU2pFNkt1c1hoR3pHSDhocmxsdFE%7C%7C?hl=en) — “5★ I recently had an issue with my oil tank, and Olsi did an outstanding job fixing it. He was punctual, professional, and clearly knowledge…”
- In November 2025 reviews, installed multiple water heaters and a boiler _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2psNFZXOXZPR3hNUm5aSk1WcDNRMU5qTlROTFRWRRAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOjl4VW9vOGxMRnZJMVp3Q1NjNTNLTVE%7C%7C?hl=en) — “5★ Great service! They installed our new water heater quickly and professionally. Friendly and efficient. Highly recommend!”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tKSFdUQmFhVmhVY0RGaVoyZFdURXBOUzNZelJuYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOkJHWTBaaVhUcDFiZ2dWTEpNS3YzRnc%7C%7C?hl=en) — “5★ Olsi responded right away. He professionally installed three water heaters at my house. I would recommend OAM for your future plumbing pr…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21VeVMzRm1aR3AwUkY5M1EyMXRaRGxMZFRac1pYYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOmUyS3FmZGp0RF93Q21tZDlLdTZsZXc%7C%7C?hl=en) — “5★ Excellent job installing boiler! Clean and professional work.”
- Reviewers repeatedly cite fair, transparent pricing with no surprise charges _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2twTWNuWmtUVkZPYkRSS2JuaDFSMUJZYjNZM2RWRRAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOkpMcnZkTVFObDRKbnh1R1BYb3Y3dVE%7C%7C?hl=en) — “5★ After years of trying to find a solid and reliable plumber for my properties, I am so glad I was referred to OAM. They went above and bey…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21WRlpEVmhRamhCTmxsMFFrZEdiVzR5UTJFeVEyYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOmVFZDVhQjhBNll0QkdGbW4yQ2EyQ2c%7C%7C?hl=en) — “5★ OAM Plumbing did an outstanding job. They were professional, arrived on time, and explained everything clearly before starting. The price…”
- Water heater and boiler installation _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2psNFZXOXZPR3hNUm5aSk1WcDNRMU5qTlROTFRWRRAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOjl4VW9vOGxMRnZJMVp3Q1NjNTNLTVE%7C%7C?hl=en) — “5★ Great service! They installed our new water heater quickly and professionally. Friendly and efficient. Highly recommend!”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tKSFdUQmFhVmhVY0RGaVoyZFdURXBOUzNZelJuYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOkJHWTBaaVhUcDFiZ2dWTEpNS3YzRnc%7C%7C?hl=en) — “5★ Olsi responded right away. He professionally installed three water heaters at my house. I would recommend OAM for your future plumbing pr…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21VeVMzRm1aR3AwUkY5M1EyMXRaRGxMZFRac1pYYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOmUyS3FmZGp0RF93Q21tZDlLdTZsZXc%7C%7C?hl=en) — “5★ Excellent job installing boiler! Clean and professional work.”
- Emergency plumbing and heating repair _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tGZlNtNXZaMUJMUkhKQlMwNVVUSFkwZFVweGQwRRAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOkFfSm5vZ1BLRHJBS05UTHY0dUpxd0E%7C%7C?hl=en) — “5★ I can’t say enough good things about OAM Plumbing.
We had a plumbing emergency at our home, and Olsi showed up extremely fast. He handled…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xSdWVrdExVMVpIVVdKT2JXcFhSa2t6UkRCT2RHYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOlRuektLU1ZHUWJObWpXRkkzRDBOdGc%7C%7C?hl=en) — “5★ On a Saturday night, I had an emergency and needed a plumber due to a heating issue with my boiler.  After contacting several companies w…”
- Specializes in Plumbing _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xKTlVVMWpaVTlqYkdKc1JXeDZaMnRHU0VOTVJGRRAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOlJNUU1jZU9jbGJsRWx6Z2tGSENMRFE%7C%7C?hl=en) — “5★ OAM Plumbing did an excellent job on all the plumbing work for two bathrooms in my rental property. Professional, reliable, and high-qual…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tGZlNtNXZaMUJMUkhKQlMwNVVUSFkwZFVweGQwRRAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOkFfSm5vZ1BLRHJBS05UTHY0dUpxd0E%7C%7C?hl=en) — “5★ I can’t say enough good things about OAM Plumbing.
We had a plumbing emergency at our home, and Olsi showed up extremely fast. He handled…”
  - [State License Registry](https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page) — “MA plumber license 5249-PL-C registry-verified expired — registry holder of record: OAM Plumbing Gas Heating LLC”
- Specializes in HVAC / Heating & Cooling _(confidence: high)_
  - [Official Website](https://www.oamplumbing.com) — “OAM Plumbing offers plumbing, boiler, water-heater, gas, and heating-system installation and repair services, with a Master Plumber describe…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21VeVMzRm1aR3AwUkY5M1EyMXRaRGxMZFRac1pYYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOmUyS3FmZGp0RF93Q21tZDlLdTZsZXc%7C%7C?hl=en) — “5★ Excellent job installing boiler! Clean and professional work.”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xSdWVrdExVMVpIVVdKT2JXcFhSa2t6UkRCT2RHYxAB!2m1!1s0x0:0xb18dbd236bd3eb0e!3m1!1s2@1:CAIQACodChtycF9oOlRuektLU1ZHUWJObWpXRkkzRDBOdGc%7C%7C?hl=en) — “5★ On a Saturday night, I had an emergency and needed a plumber due to a heating issue with my boiler.  After contacting several companies w…”

## License

Status: **expired** (#5249-PL-C, plumber) — verified against the official MA state registry on 2026-08-24, never self-reported.
Re-check at the official registry: https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page

## Sources

- [Google](https://www.google.com/maps/search/?api=1&query=OAM%20Plumbing&query_place_id=ChIJ8cYdVqQcEUcRDuvTayO9jbE): 5.0★ from 26 ratings
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=OAM%20Plumbing&query_place_id=ChIJ8cYdVqQcEUcRDuvTayO9jbE): Listed on this source
- [Official Website](https://www.oamplumbing.com): Self-reported profile and service details

## Recent reviews

- **5/5 · Google Reviews · Alma Richards · 2025-12-25**: I recently had an issue with my oil tank, and Olsi did an outstanding job fixing it. He was punctual, professional, and clearly knowledgeable about his work. He explained the problem in simple terms, worked efficiently, and made sure everything was running safely before he left. The quality of his r…
- **5/5 · Google Reviews · Igli Zyryku · 2025-12-15**: OAM Plumbing did an excellent job on all the plumbing work for two bathrooms in my rental property. Professional, reliable, and high-quality workmanship from start to finish. Everything was completed efficiently and with great attention to detail. I will definitely recommend OAM Plumbing to friends …
- **5/5 · Google Reviews · kristi proko · 2025-11-30**: I can’t say enough good things about OAM Plumbing.
We had a plumbing emergency at our home, and Olsi showed up extremely fast. He handled the situation calmly, explained what was happening, and got everything under control within minutes. His work was clean, efficient, and thorough. He also checked …
- **5/5 · Google Reviews · Jonilda Sako · 2025-11-20**: Amazing! Great work and good communication!
- **5/5 · Google Reviews · Iris GH · 2025-11-19**: Great service! They installed our new water heater quickly and professionally. Friendly and efficient. Highly recommend!
- **5/5 · Google Reviews · Bledi Demirazi · 2025-11-18**: Olsi responded right away. He professionally installed three water heaters at my house. I would recommend OAM for your future plumbing projects.
- **5/5 · Google Reviews · David Foster · 2025-11-15**: Excellent job installing boiler! Clean and professional work.
- **5/5 · Google Reviews · Kelvin Stajko · 2025-11-12**: OAM Plumbing provided excellent service. Olsi was punctual, professional, and explained everything clearly. The work was done efficiently and with great attention to detail. Highly recommend!
- **5/5 · Google Reviews · Monish Naicker · 2025-11-10**: Fair prices and great work. I'll definitely use them again.
- **5/5 · Google Reviews · hai lam · 2025-11-10**: Olsi is amazing!, very fast and sufficient with his work. highly recommend him to anyone.

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Data freshness: last scanned 2026-08-24T14:30:27.938Z.
Cite as: OAM Plumbing — Tavlee (https://tavlee.com/contractor/oam-plumbing)
Source: https://tavlee.com/contractor/oam-plumbing