--- title: "Mahan Slate Roofing Co." description: "Slate and copper are Mahan Slate Roofing’s focus. The Agawam company says on its BuildZoom profile that its employees are trained in those materials, and i" doc_version: "2026-10-01" last_updated: "2026-10-01" --- # Mahan Slate Roofing Co. **Trade:** Roofing · **Address:** 699 Silver St, Agawam, MA 01001 · **Phone:** (800) 347-9529 · **Website:** http://www.mahanslate.com/ · **Languages:** English **Rating: 3.4/5** (low confidence) — from 2 reviews across 6 sources. ## The honest read Slate and copper are Mahan Slate Roofing’s focus. The Agawam company says on its BuildZoom profile that its employees are trained in those materials, and it draws a specific boundary around its work: it does not install asphalt shingle roofing or commercial flat roofing. BusinessWest also describes the company as specializing in slate and copper roofs for residential, institutional and commercial structures. The company’s website says it has been in business for 47 years and that its employees receive customer-service training. In an April 2025 Google review, someone who said they had worked with Mahan for many years described it as a multigenerational family company and praised its craftsmanship, honesty and commitment to doing the job right. Its Massachusetts home improvement contractor registration, number 161091, is active. BBB gives the company an A+ grade, while Google shows a 4.2-star average from five ratings. BuildZoom lists Connecticut home improvement contractor number HIC.0628970 for the company and shows 19 projects. **Strengths:** - Slate and copper — company describes employee training in both roofing materials - Long working relationship — April 2025 reviewer praised craftsmanship and honesty over many years - BBB grade — A+ from the Better Business Bureau **Concerns:** - Roofing exclusions — company excludes asphalt shingle roofing and commercial flat roofing ## Claims & citations Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication. - The company says its employees are trained in slate and copper roofing. _(confidence: medium)_ - [BuildZoom](https://www.buildzoom.com/contractor/mahan-slate-roofing-co-west-hartford) — “About (BuildZoom profile, verbatim): This is not just an advertising claim or motto. This is how we do business every day. People are often …” - The company says it does not install asphalt shingle roofing or commercial flat roofing. _(confidence: high)_ - [BuildZoom](https://www.buildzoom.com/contractor/mahan-slate-roofing-co-west-hartford) — “About (BuildZoom profile, verbatim): This is not just an advertising claim or motto. This is how we do business every day. People are often …” - BusinessWest describes Mahan as specializing in slate and copper roofing for residential, institutional and commercial structures. _(confidence: medium)_ - [Local News](https://businesswest.com/blog/the-super-60-2/) — “businesswest.com — Topping the revenue-growth category (where there are actually 31 winners) is Mahan Slate Roofing Co. Inc., which speciali…” - The company reports 47 years in business on its website. _(confidence: medium)_ - [Official Website](http://www.mahanslate.com) — “Self-reported 47 years in business” - An April 2025 Google reviewer who had worked with Mahan for many years praised its craftsmanship, honesty and commitment to doing the job right. _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnTURvaThtWFBBEAE!2m1!1s0x0:0xe85b304b64d0435!3m1!1s2@1:CIHM0ogKEICAgMDoi8mXPA%7C%7C?hl=en-US) — “5★ I’ve had the privilege of working with Mahan Slate Roofing for many years, and I can confidently say they are among the best in the busin…” - An April 2025 Google reviewer described Mahan as a multigenerational family company. _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnTURvaThtWFBBEAE!2m1!1s0x0:0xe85b304b64d0435!3m1!1s2@1:CIHM0ogKEICAgMDoi8mXPA%7C%7C?hl=en-US) — “5★ I’ve had the privilege of working with Mahan Slate Roofing for many years, and I can confidently say they are among the best in the busin…” - Mahan Slate Roofing Co., Inc.’s Massachusetts home improvement contractor registration 161091 is active. _(confidence: high)_ - [State License Registry](https://contractorhub.mass.gov/s/hic-contractor-search) — “MA hic license 161091 registry-verified active — registry holder of record: MAHAN SLATE ROOFING CO., INC.” - BBB gives the company an A+ grade. _(confidence: high)_ - [Better Business Bureau](https://www.bbb.org/us/ma/agawam/profile/roofing-contractors/mahan-slate-roofing-co-inc-0261-201287) — “Better Business Bureau grade: A+” - Google shows a 4.2-star average from five ratings. _(confidence: high)_ - [Google](https://www.google.com/maps/search/?api=1&query=Mahan%20Slate%20Roofing%20Co.&query_place_id=ChIJJ9Kcr3zj5okRNQRNtgSzhQ4) — “Google: 4.2★ from 5 ratings” - BuildZoom lists Connecticut home improvement contractor number HIC.0628970 for the company. _(confidence: medium)_ - [BuildZoom](https://www.buildzoom.com/contractor/mahan-slate-roofing-co-west-hartford) — “Licence listed on BuildZoom: HIC.0628970 (Home Improvement Contractor, Connecticut; BuildZoom lists it Active, issued 04-01-2026 — BuildZoom…” - BuildZoom shows 19 projects for the company. _(confidence: medium)_ - [BuildZoom](https://www.buildzoom.com/contractor/mahan-slate-roofing-co-west-hartford) — “19 project(s) shown on BuildZoom” - Specializes in Roofing _(confidence: high)_ - [BuildZoom](https://www.buildzoom.com/contractor/mahan-slate-roofing-co-west-hartford) — “About (BuildZoom profile, verbatim): This is not just an advertising claim or motto. This is how we do business every day. People are often …” - [Local News](https://businesswest.com/blog/the-super-60-2/) — “businesswest.com — Topping the revenue-growth category (where there are actually 31 winners) is Mahan Slate Roofing Co. Inc., which speciali…” ## License Status: **active** (#161091, hic) — verified against the official MA state registry on 2026-09-29, never self-reported. Re-check at the official registry: https://contractorhub.mass.gov/s/hic-contractor-search ## Sources - [Local News](https://www.roofingcontractor.com/articles/93470-roofing-alliance-announces-award-winners-at-nrca-industry-awards-ceremony): Listed on this source - [Google](https://www.google.com/maps/search/?api=1&query=Mahan%20Slate%20Roofing%20Co.&query_place_id=ChIJJ9Kcr3zj5okRNQRNtgSzhQ4): 4.2★ from 5 ratings - [Google Reviews](https://www.google.com/maps/search/?api=1&query=Mahan%20Slate%20Roofing%20Co.&query_place_id=ChIJJ9Kcr3zj5okRNQRNtgSzhQ4): Listed on this source - [Better Business Bureau](https://www.bbb.org/us/ma/agawam/profile/roofing-contractors/mahan-slate-roofing-co-inc-0261-201287): Listed on this source - [Official Website](http://www.mahanslate.com): 47 yrs in business · Self-reported profile and service details - [BuildZoom](https://www.buildzoom.com/contractor/mahan-slate-roofing-co-west-hartford): Listed on this source ## Mentions Unverified third-party mentions found on the open web — relay with attribution ("a Reddit commenter said…"), never as Tavlee's own finding. - “Topping the revenue-growth category (where there are actually 31 winners) is Mahan Slate Roofing Co. Inc., which specializes in slate and copper roofing for residential, institutional, and commercial …” — businesswest.com — https://businesswest.com/blog/the-super-60-2/ - “John Mahan, of Mahan Slate Roofing, right, and John Lavoie, of Miller Crane, guide the 600-pound copper weather vane removed from atop the Baker Library tower in Hanover, N.H., on June 25, 2020.” — vtdigger.org — https://vtdigger.org/2021/05/25/dartmouth-working-group-to-assess-iconography-on-campus/ - “Mahan Slate Roofing Co. Inc., Agawam, Mass. with the Dartmouth College Baker Tower Renovation project in Hanover, N.H.” — roofingcontractor.com — https://www.roofingcontractor.com/articles/93470-roofing-alliance-announces-award-winners-at-nrca-industry-awards-ceremony ## Recent reviews - **5/5 · Google Reviews · Daniel Godin · 2025-04-28**: I’ve had the privilege of working with Mahan Slate Roofing for many years, and I can confidently say they are among the best in the business. A multi-generational family company, they bring a level of expertise, craftsmanship, and integrity that’s increasingly rare to find. Every interaction with th… - **5/5 · Google Reviews · Marko Dekic · 2022-05-26**: Nice company --- Data freshness: last scanned 2026-10-01T00:13:06.744Z. Cite as: Mahan Slate Roofing Co. — Tavlee (https://tavlee.com/contractor/mahan-slate-roofing-co-agawam) Source: https://tavlee.com/contractor/mahan-slate-roofing-co-agawam ## Sitemap [Full site index](https://tavlee.com/sitemap.md)