# MassTech Roofing & Building

**Trade:** Roofing · **Address:** 260 Washington St, Pembroke, MA 02359, USA · **Phone:** (781) 232-3585 · **Website:** http://masstechroofing.com/ · **Languages:** English

**Rating: 4.0/5** (medium confidence) — from 25 reviews across 6 sources. A 0–5 star rating built from what customers and the public say (every review and mention weighted by where it was posted, how old, how detailed and how credible it is, shrunk toward a 3.5★ baseline when evidence is thin) plus what the record shows (Reddit recommendations or warnings, a registry-verified licence, how recently they were reviewed, customer work photos, BBB grade, negative news, a revoked licence). Positive record counts only as far as the reviews have earned it; penalties count in full. Confidence describes how much weighted evidence stands behind the number, never the number itself: low when fewer than about five normal reviews' worth of weight (or mentions only) support it, medium up to about twenty, high beyond that across at least two sources. An operator flag for a suspicious review pattern caps a rating at 3.5★ and marks it low.
92% of sentiment-scored reviews read net-positive. Last 6 months: 2 reviews, 0 negative.

## The honest read

MassTech Roofing & Building is a Pembroke-based roofing and home-addition contractor that says it serves Greater Boston and the South Shore, including Marshfield, Plymouth and Truro. BBB's profile puts the company in business since 2009, 17 years, under owner Costi Serban — the company's own website instead claims over 30 years in business, and Angi lists 24 years of experience; the three sources don't agree on how long it's actually been operating.

What repeats across 25 Google reviews from 2021 through mid-2026 is speed on emergencies and a hands-on owner. A chimney cap that blew off got a same-day fix, a raccoon-damaged roof vent was repaired the next day, and in a 2023 review one homeowner described Costi finding a ceiling leak within minutes after several other roofers couldn't locate it. Full roof replacements come up again and again, including matching details like reshingling a shed to match the house and cedar shingle and skylight work. The company has also taken on larger projects — one reviewer describes a bedroom and accessible bathroom addition with a ramp. Google shows a 4.9-star average across 65 ratings, and BBB lists the business as accredited with an A+ grade.

It isn't spotless. One customer says the estimator never showed for a scheduled appointment, arrived 45 minutes late to the rescheduled one, and then left items off the written estimate. Another, in a 2021 review, described a job that started well and "ended in a fizzle," without saying what went wrong.

MassTech looks like the call for roof replacement and repair, especially anything urgent. Given the one no-show complaint, it's worth confirming an estimate appointment a day ahead and getting the full scope of work in writing before signing off.

**Strengths:**
- Roof replacements — full re-roofs including matching shed shingle work
- Emergency response — same-day fixes for chimney and storm damage
- Leak repairs — finds leaks other roofers couldn't locate
- Owner involvement — Costi hands-on and detailed on every job
- Home additions — bedroom and accessible bathroom build-outs

**Concerns:**
- Estimate scheduling — one customer reported a missed appointment
- Mixed outcome — one 2021 review described a job ending poorly

**Where sources disagree:**
- BBB lists the business as operating since 2009 (17 years); the company's own website claims over 30 years in business; Angi lists 24 years of experience — the three sources disagree on the company's actual length of operation.

## Claims & citations

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

- BBB profile lists the business as operating since 2009 (17 years), owned by Costi Serban _(confidence: medium)_
  - [Better Business Bureau](https://www.bbb.org/us/ma/pembroke/profile/roofing-contractors/mass-tech-roofing-and-building-co-0021-131042) — “BBB profile confirms Mass-Tech Roofing and Building Co. is a BBB-accredited business with an A+ rating, in business since 2009 (17 years), o…”
- BBB-accredited business with an A+ rating _(confidence: high)_
  - [Better Business Bureau](https://www.bbb.org/us/ma/pembroke/profile/roofing-contractors/mass-tech-roofing-and-building-co-0021-131042) — “Better Business Bureau grade: A+”
  - [Better Business Bureau](https://www.bbb.org/us/ma/pembroke/profile/roofing-contractors/mass-tech-roofing-and-building-co-0021-131042) — “Better Business Bureau: accredited / certified / member”
- Google rating of 4.9 stars across 65 ratings _(confidence: high)_
  - [Google](https://maps.google.com/?cid=9114828789781367767&g_mp=CiVnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLkdldFBsYWNlEAIYBCAA) — “Google: 4.9★ from 65 ratings”
- Same-day repair of a fallen chimney cap with a quick, well-communicated fix _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnTURBc3BlcXVnRRAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgMDAspequgE%7C%7C?hl=en) — “5★ I had a text from my neighbor that my chimney cap fell over.  I reached out to MassTech and they got in touch right away and gave me a re…”
- Repaired raccoon-caused roof vent damage the day after being contacted _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNqaC1uS1NBEAE!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgICjh-nKSA%7C%7C?hl=en) — “5★ We were out of town and a neighbor sent us a picture of our roof showing a gaping hole where we think a raccoon removed the roof vent to …”
- In a 2023 review, located a ceiling leak within minutes after other roofers could not find it _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURweXJQb0tBEAE!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgIDpyrPoKA%7C%7C?hl=en) — “5★ I had a leak in my ceiling in which several roofers were unable to locate or fix. I reached out to Mass-Tech and they returned my call al…”
- Completed a bedroom and accessible-bathroom addition, including a ramp _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25ObFRISkRWVlZtVjJ4S1RFZzBjMGM1WkRCRGFuYxAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CAIQACodChtycF9oOnNlTHJDVVVmV2xKTEg0c0c5ZDBDanc%7C%7C?hl=en) — “5★ Did wonderful job by adding 1 bedroom and bath and a half all handicapped accessible including ramp.  They even did all extras like plowi…”
- Full roof replacements including matching detail work like reshingling a shed to match the house _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGYVR6Qm9ObXA2YkdFM04xaFBWbkEzUms5NldsRRAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CAIQACodChtycF9oOjFaTzBoNmp6bGE3N1hPVnA3Rk96WlE%7C%7C?hl=en) — “5★ Great job from Costi, Rob, and their team! They replaced my roof on a 2 story cape house. Replaced the wood all around and reinforced the…”
- A customer reported the estimator no-showed a scheduled appointment, arrived 45 minutes late to the reschedule, and left items off the written estimate _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNMbHBHeC1RRRAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgICLlpGx-QE%7C%7C?hl=en) — “1★ I can't speak for their work because I never got that far. I had several repairs that I needed done and had an appointment to meet with s…”
- One 2021 reviewer described a job that started well and ended poorly, without explaining what went wrong _(confidence: low)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNHdU0tMHVRRRAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgICGuM-0uQE%7C%7C?hl=en) — “2★ Very disappointed.  Started off with bang ended in a fizzle
Not sure really what happened”
- Skylight installation alongside roof replacement and cedar shingle work _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUM3NTV5cW9BRRAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgIC755yqoAE%7C%7C?hl=en) — “5★ Costi was great to work with. He’s very responsive and very detailed. He provided guidance on color which he was absolutely correct. They…”
- Self-reported service area covering Boston, Marshfield, Plymouth, Pembroke and Truro _(confidence: low)_
  - [Official Website](http://masstechroofing.com) — “Stated service area (self-reported): Boston, Marshfield, Plymouth, Pembroke, Truro”
- Specializes in Roofing _(confidence: high)_
  - [Official Website](http://masstechroofing.com) — “MassTech Roofing & Building is a Pembroke, MA-based roofing and home addition contractor serving Greater Boston, the South Shore and surroun…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2pGYVR6Qm9ObXA2YkdFM04xaFBWbkEzUms5NldsRRAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CAIQACodChtycF9oOjFaTzBoNmp6bGE3N1hPVnA3Rk96WlE%7C%7C?hl=en) — “5★ Great job from Costi, Rob, and their team! They replaced my roof on a 2 story cape house. Replaced the wood all around and reinforced the…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnTUNnaUlyUUtREAE!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgMCgiIrQKQ%7C%7C?hl=en) — “5★ I couldn't be more pleased with the exceptional service provided by Mass Tech Roofing and Rob! From start to finish, the entire process w…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUM3NTV5cW9BRRAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgIC755yqoAE%7C%7C?hl=en) — “5★ Costi was great to work with. He’s very responsive and very detailed. He provided guidance on color which he was absolutely correct. They…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNqaC1uS1NBEAE!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgICjh-nKSA%7C%7C?hl=en) — “5★ We were out of town and a neighbor sent us a picture of our roof showing a gaping hole where we think a raccoon removed the roof vent to …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURweXJQb0tBEAE!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgIDpyrPoKA%7C%7C?hl=en) — “5★ I had a leak in my ceiling in which several roofers were unable to locate or fix. I reached out to Mass-Tech and they returned my call al…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNwdWVEVU5nEAE!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgICpueDUNg%7C%7C?hl=en) — “5★ Mass-Tech Roofing installed a new roof on my home.  Costi was great with communication, and was very thorough when explaining details of …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURKOHIyOWlBRRAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgIDJ8r29iAE%7C%7C?hl=en) — “5★ I used them to fix roof leaks take out vents and install a skylight and bath vents. They are excellent and reasonable”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUMybmN1emRnEAE!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgIC2ncuzdg%7C%7C?hl=en) — “5★ Mass Tech Roofing is an awesome company. One phone call and they were here the next day to patch my roof after the October 2021 storm. Sh…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUMyeXVYclVREAE!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgIC2yuXrUQ%7C%7C?hl=en) — “5★ I found this company to be  extremely knowledgeable on the roofing materials they were installing. Highly recommend to anyone needing a n…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUM2NjlXbFdnEAE!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CIHM0ogKEICAgIC669WlWg%7C%7C?hl=en) — “5★ Had leak in portico roof section...techs stripped old membrane..removed railing system on that side of leak and re wrapped posts .....was…”
- Also offers General Contractor / Remodeling _(confidence: medium)_
  - [Official Website](http://masstechroofing.com) — “MassTech Roofing & Building is a Pembroke, MA-based roofing and home addition contractor serving Greater Boston, the South Shore and surroun…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25ObFRISkRWVlZtVjJ4S1RFZzBjMGM1WkRCRGFuYxAB!2m1!1s0x0:0x7e7e607deb6c0bd7!3m1!1s2@1:CAIQACodChtycF9oOnNlTHJDVVVmV2xKTEg0c0c5ZDBDanc%7C%7C?hl=en) — “5★ Did wonderful job by adding 1 bedroom and bath and a half all handicapped accessible including ramp.  They even did all extras like plowi…”
- Also offers Carpentry _(confidence: low)_
  - [Angi](https://www.angi.com/companylist/us/ma/pembroke/mass-tech-roofing-and-building-co-reviews-85441775.htm) — “Angi profile shows Mass-Tech Roofing and Building Co. as new to the platform with no reviews yet ("Be the first to write them a review!"), t…”
- Also offers Windows / Siding / Gutters _(confidence: low)_
  - [Angi](https://www.angi.com/companylist/us/ma/pembroke/mass-tech-roofing-and-building-co-reviews-85441775.htm) — “Angi profile shows Mass-Tech Roofing and Building Co. as new to the platform with no reviews yet ("Be the first to write them a review!"), t…”

## License

Status: **not_found** — verified against the official MA state registry, never self-reported.
Re-check at the official registry: https://contractorhub.mass.gov/s/hic-contractor-search

## Sources

- [Google](https://www.google.com/maps/search/?api=1&query=MassTech%20Roofing%20%26%20Building&query_place_id=ChIJ8219lOmh5IkR1wts631gfn4): 4.9★ from 65 ratings
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=MassTech%20Roofing%20%26%20Building&query_place_id=ChIJ8219lOmh5IkR1wts631gfn4): Listed on this source
- [Better Business Bureau](https://www.bbb.org/us/ma/pembroke/profile/roofing-contractors/mass-tech-roofing-and-building-co-0021-131042): Listed on this source
- [Official Website](http://masstechroofing.com): 30 yrs in business · Self-reported profile and service details
- [Angi](https://www.angi.com/companylist/us/ma/pembroke/mass-tech-roofing-and-building-co-reviews-85441775.htm): Listed on this source
- [Exa](https://reviews.birdeye.com/mass-tech-roofing-and-building-co-166329521752445): 7 web mentions across the open web (each linked to its source)

## Recent reviews

- **5/5 · Google Reviews · Joshua Schultz · 2026-06-25**: Great job from Costi, Rob, and their team! They replaced my roof on a 2 story cape house. Replaced the wood all around and reinforced the ridge lines. They even replaced the shingles on the shed to match, which was a nice touch. In and out in 1 day,  cleaned up nicely, and affordable. I definitely r…
- **5/5 · Google Reviews · Scott Carey · 2026-05-20**: Did wonderful job by adding 1 bedroom and bath and a half all handicapped accessible including ramp.  They even did all extras like plowing the driveway during snow.  Including the blizzard of 26
- **5/5 · Google Reviews · Avram Lavinsky · 2025-03-03**: I can't say enough about Rob and MassTech Roofing & Building. They communicated well through every phase of the job, delivered critical work on time, stayed within estimates, and achieved beautiful results. I will definitely use MassTech Roofing & Building again.
- **5/5 · Google Reviews · D Lamare · 2025-02-13**: I couldn't be more pleased with the exceptional service provided by Mass Tech Roofing and Rob! From start to finish, the entire process was seamless and professional. Rob and his team were communicative, timely, and highly skilled. They completed my new roof with amazing efficiency- the crew was har…
- **5/5 · Google Reviews · Johnny Thach · 2025-02-08**: I had a text from my neighbor that my chimney cap fell over.  I reached out to MassTech and they got in touch right away and gave me a reasonable quote.  The amazing thing was they were able to come same day/on-time and resolve the problem very quickly.  They were very responsive and communicated th…
- **5/5 · Google Reviews · Zack Brousseau · 2025-02-04**: The Free estimate was great and Rob did an amazing job coordinating and keeping in contact. Very rare when a contractor has great communication skills, but Rob goes above and beyond! Thank you MassTech!
- **5/5 · Google Reviews · isuboiler18 · 2024-08-18**: Costi was great to work with. He’s very responsive and very detailed. He provided guidance on color which he was absolutely correct. They installed three skylights, roof replacement and cedar shingles on part of our house. So far so good. Would highly recommend Mass Tech to anyone.
- **1/5 · Google Reviews · Lisa Manoli · 2024-06-18**: I can't speak for their work because I never got that far. I had several repairs that I needed done and had an appointment to meet with someone that would look over the work and email an estimate. He never showed. I called when he was 45 minutes late and was told he was stuck at a job. This is compl…
- **5/5 · Google Reviews · John C. Vickers · 2024-05-21**: On a challenging job they offered a reasonable quote, stuck to it and exceeded our high expectations. They are friendly, expert and devoted to customer satisfaction. The workers are amazing people, and we feel lucky to have found this outfit!
- **5/5 · Google Reviews · Julie Sullivan · 2024-04-26**: We were out of town and a neighbor sent us a picture of our roof showing a gaping hole where we think a raccoon removed the roof vent to gain access.  There was also damage.  MassTech answered my call and completed the repair the very next day.  They went above and beyond and inspected the interior …

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Data freshness: last scanned 2026-07-03T00:59:36.293Z.
Cite as: MassTech Roofing & Building — Tavlee (https://tavlee.com/contractor/masstech-roofing-and-building-pembroke)
Source: https://tavlee.com/contractor/masstech-roofing-and-building-pembroke