# Blue Hills Mechanical

**Trade:** HVAC / Heating & Cooling · **Address:** 907 North St Ste 105, Randolph, MA 02368, USA · **Phone:** (617) 828-9020 · **Website:** https://www.bluehillsmechanical.com/ · **Languages:** English

**Rating: 2.2/5** (low confidence) — from 4 reviews across 4 sources.

## The honest read

Blue Hills Mechanical is a Randolph-based residential and commercial HVAC contractor that also offers electrical services, operating as part of the Cape Cod Mechanical Systems family of companies. The company says that group dates to 1989 with over 37 years of HVAC and electrical experience, and lists itself as a Diamond Fujitsu dealer and an Elite Heil dealer. Its stated service area stretches across a wide swath of eastern Massachusetts, from Randolph and Milton to Braintree, Hingham, Canton, and Plymouth.

The written record is small — just four Google reviews — and split. Two five-star reviews, both from late 2025, are positive: one comes from someone whose property management company uses Blue Hills regularly, calling them knowledgeable with no complaints after repairs; the other calls the company service-oriented, flexible, and affordable, without describing a specific job.

The two most recent reviews, both from February 2026, describe real problems. One customer says they paid a 'final' invoice for an oil-to-gas boiler conversion in full, only to be billed an additional $4,000 months later over a subcontractor payment — a charge the customer says they confirmed directly with the subcontractors had already been paid. Another customer says they were told a water heater's warranty had expired, and only discovered after calling the manufacturer themselves that roughly two years of coverage remained, avoiding an unnecessary full replacement; the same visit included about $1,300 in furnace repairs.

For a routine service call arranged through a property manager, the record here has been fine. But the two most recent, most detailed reviews raise real billing and disclosure concerns. Anyone hiring Blue Hills directly should get every cost in writing up front and independently verify any warranty or parts information before agreeing to a repair or replacement.

**Strengths:**
- Property-manager trusted — a reviewer's management company uses them regularly with no complaints

**Concerns:**
- Billing dispute — a Feb. 2026 review alleges a $4K charge after a paid invoice
- Incorrect warranty info — a Feb. 2026 review says an expired-warranty claim was false

## Claims & citations

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

- The company's own website says it is part of the Cape Cod Mechanical Systems family, dating to 1989 with over 37 years of HVAC and electrical experience _(confidence: medium)_
  - [Official Website](https://www.bluehillsmechanical.com) — “Company history (self-reported): States it is part of the Cape Cod Mechanical Systems family, a locally owned and operated company establish…”
  - [Official Website](https://www.bluehillsmechanical.com) — “Ownership (self-reported): Operates as part of the Cape Cod Mechanical Systems family of companies.”
- Its website lists it as a Diamond Fujitsu dealer and an Elite Heil dealer _(confidence: medium)_
  - [Official Website](https://www.bluehillsmechanical.com) — “Stated certification/affiliation: Diamond Fujitsu Dealer”
  - [Official Website](https://www.bluehillsmechanical.com) — “Stated certification/affiliation: Elite Heil Dealer”
- A reviewer whose property management company uses Blue Hills regularly calls them knowledgeable with no complaints after repairs _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21aYVIzVmZYM0JpZHpkdVN6TnhaRkpaWW1wT1VtYxAB!2m1!1s0x0:0x8b8e86035be30f6f!3m1!1s2@1:CAIQACodChtycF9oOmZaR3VfX3BidzduSzNxZFJZYmpOUmc%7C%7C?hl=en) — “5★ I work for a property management company who uses Blue Hills all the time. They are very knowledgeable and do a great job. I’ve never had…”
- A February 2026 review alleges the customer paid a 'final' invoice in full for an oil-to-gas boiler conversion, then was billed an additional $4,000 for a subcontractor the customer says was already paid _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tGeU9HWkNRbTl2YVZwRlQwbFZXbXQwTW01MWVXYxAB!2m1!1s0x0:0x8b8e86035be30f6f!3m1!1s2@1:CAIQACodChtycF9oOkFyOGZCQm9vaVpFT0lVWmt0Mm51eWc%7C%7C?hl=en) — “1★ Did an oil to gas boiler conversion over 3 months ago. Received and personally delivered the check in the full amount on the invoice mark…”
- A February 2026 review says the company told the customer a water heater's warranty had expired, but the manufacturer confirmed roughly two years of coverage remained _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21oaU1VRlNUSGhSUjI1b1VISkhhVTE0UTNOa2FtYxAB!2m1!1s0x0:0x8b8e86035be30f6f!3m1!1s2@1:CAIQACodChtycF9oOmhiMUFSTHhRR25oUHJHaU14Q3Nkamc%7C%7C?hl=en) — “1★ We had Blue Hills Mechanical come out for HVAC service and later for issues involving our water heater. During the visit, we were told th…”
- HVAC installation and repair _(confidence: high)_
  - [Official Website](https://www.bluehillsmechanical.com) — “Blue Hills Mechanical is a residential and commercial HVAC contractor (also offering electrical services) based in Randolph, MA, serving Gre…”
- electrical services _(confidence: medium)_
  - [Official Website](https://www.bluehillsmechanical.com) — “Blue Hills Mechanical is a residential and commercial HVAC contractor (also offering electrical services) based in Randolph, MA, serving Gre…”
- boiler conversion _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tGeU9HWkNRbTl2YVZwRlQwbFZXbXQwTW01MWVXYxAB!2m1!1s0x0:0x8b8e86035be30f6f!3m1!1s2@1:CAIQACodChtycF9oOkFyOGZCQm9vaVpFT0lVWmt0Mm51eWc%7C%7C?hl=en) — “1★ Did an oil to gas boiler conversion over 3 months ago. Received and personally delivered the check in the full amount on the invoice mark…”
- Specializes in HVAC / Heating & Cooling _(confidence: high)_
  - [Google](https://maps.google.com/?cid=10056122366949527407&g_mp=CiVnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLkdldFBsYWNlEAIYBCAA) — “Google: 3★ from 4 ratings”
  - [Official Website](https://www.bluehillsmechanical.com) — “Blue Hills Mechanical is a residential and commercial HVAC contractor (also offering electrical services) based in Randolph, MA, serving Gre…”
- Also offers Electrical _(confidence: medium)_
  - [Official Website](https://www.bluehillsmechanical.com) — “Blue Hills Mechanical is a residential and commercial HVAC contractor (also offering electrical services) based in Randolph, MA, serving Gre…”

## License

Status: **not_found** — verified against the official MA state registry, 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=Blue%20Hills%20Mechanical&query_place_id=ChIJzSjLcM2D5IkRbw_jWwOGjos): 3.0★ from 4 ratings
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=Blue%20Hills%20Mechanical&query_place_id=ChIJzSjLcM2D5IkRbw_jWwOGjos): Listed on this source
- [Official Website](https://www.bluehillsmechanical.com): Self-reported profile and service details
- [Exa](https://hvacservice.io/ma/randolph): 5 web mentions across the open web (each linked to its source)

## Recent reviews

- **1/5 · Google Reviews · T O · 2026-02-21**: Did an oil to gas boiler conversion over 3 months ago. Received and personally delivered the check in the full amount on the invoice marked "final". Yesterday I get a bill for $4K with an explanation of "sub-contractor". I called the sub contractors and they were all paid in full. DO NOT BUSINESS WI…
- **1/5 · Google Reviews · Miriam Unaegbu · 2026-02-20**: We had Blue Hills Mechanical come out for HVAC service and later for issues involving our water heater. During the visit, we were told that our water heater warranty was expired. After contacting the manufacturer ourselves, we discovered there were still approximately two years remaining on the warr…
- **5/5 · Google Reviews · Charlie Sorge · 2025-11-05**: I work for a property management company who uses Blue Hills all the time. They are very knowledgeable and do a great job. I’ve never had any complaints after they’ve fixed something.
- **5/5 · Google Reviews · Jennifer OC · 2025-11-01**: Extremely service oriented, flexible and affordable! So fortunate I found this company !! A++

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Data freshness: last scanned 2026-07-02T11:38:17.426Z.
Cite as: Blue Hills Mechanical — Tavlee (https://tavlee.com/contractor/blue-hills-mechanical-randolph)
Source: https://tavlee.com/contractor/blue-hills-mechanical-randolph