# Formal Oil Co

**Trade:** HVAC / Heating & Cooling · **Address:** 33 Calvary St, Waltham, MA 02453 · **Phone:** (781) 894-2799 · **Languages:** English

**Rating: 3.1/5** (low confidence) — from 1 reviews across 5 sources.

## The honest read

Formal Oil Co is a Waltham oil company that BBB lists with 42 years in business and an A+ grade; it is not BBB-accredited. Google shows a 5★ average across 3 ratings.

Its one written review dates from February 2020. A customer who had been renting a house in Waltham for about six months praised the customer service and the fast oil refills.

**Strengths:**
- Fast oil refills — a February 2020 Google customer's words
- BBB A+ grade — 42 years in business

## Claims & citations

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

- BBB lists the company in Waltham with 42 years in business, an A+ grade and no BBB accreditation _(confidence: high)_
  - [Better Business Bureau](https://www.bbb.org/us/ma/waltham/profile/machinery-repair/formal-oil-co-0021-359670) — “Better Business Bureau grade: A+”
  - [Better Business Bureau](https://www.bbb.org/us/ma/waltham/profile/machinery-repair/formal-oil-co-0021-359670) — “BBB lists Formal Oil Co at a Waltham, Massachusetts mailing address, with an A+ rating, 42 years in business, and no BBB accreditation.”
- 5★ average across 3 Google ratings _(confidence: high)_
  - [Google](https://www.google.com/maps/search/?api=1&query=Formal%20Oil%20Co&query_place_id=ChIJtSvONMWC44kR3NMxpoks9Lw) — “Google: 5★ from 3 ratings”
- A February 2020 Google reviewer renting in Waltham praised the customer service and fast oil refills _(confidence: medium)_
  - [Google Reviews](https://maps.google.com/?cid=13615556543158277084&g_mp=CiVnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLkdldFBsYWNlEAIYBCAA) — “5★ Great customer service and fast oil refills. I've been renting a house in Waltham for about six months now and really appreciate Formal O…”
- Specializes in HVAC / Heating & Cooling _(confidence: low)_
  - [Google Reviews](https://maps.google.com/?cid=13615556543158277084&g_mp=CiVnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLkdldFBsYWNlEAIYBCAA) — “5★ Great customer service and fast oil refills. I've been renting a house in Waltham for about six months now and really appreciate Formal O…”

## 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

- [Yelp](https://www.yelp.com/biz/formal-oil-company-waltham): Listed on this source
- [Google](https://www.google.com/maps/search/?api=1&query=Formal%20Oil%20Co&query_place_id=ChIJtSvONMWC44kR3NMxpoks9Lw): 5.0★ from 3 ratings
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=Formal%20Oil%20Co&query_place_id=ChIJtSvONMWC44kR3NMxpoks9Lw): Listed on this source
- [Angi](https://www.angi.com/companylist/us/ma/medford/bob%27s-magic-broom-reviews-73306.htm): Listed on this source
- [Better Business Bureau](https://www.bbb.org/us/ma/waltham/profile/machinery-repair/formal-oil-co-0021-359670): Listed on this source

## Recent reviews

- **5/5 · Google Reviews · Shoshana Finkel · 2020-02-25**: Great customer service and fast oil refills. I've been renting a house in Waltham for about six months now and really appreciate Formal Oil's service.

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Data freshness: last scanned 2026-09-09T05:23:23.902Z.
Cite as: Formal Oil Co — Tavlee (https://tavlee.com/contractor/formal-oil-co-waltham)
Source: https://tavlee.com/contractor/formal-oil-co-waltham