The Best General Contractors in Boston, MA

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1AJH Construction Ma★ 5.00 on this job15 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “General construction”:Stars on this job 55%5.00★Number of such jobs 25%15Overall Experts Score 20%99Job match= 95Stars are pulled toward the category average (4.88★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.95

2Abacus★ 4.94 on this job18 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “General construction”:Stars on this job 55%4.94★Number of such jobs 25%18Overall Experts Score 20%95Job match= 93Stars are pulled toward the category average (4.88★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.93

3Alcantara Contractor★ 5.00 on this job17 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “General construction”:Stars on this job 55%5.00★Number of such jobs 25%17Overall Experts Score 20%80Job match= 93Stars are pulled toward the category average (4.88★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.93

4ACS Group Inc - General contractor★ 5.00 on this job14 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “General construction”:Stars on this job 55%5.00★Number of such jobs 25%14Overall Experts Score 20%89Job match= 92Stars are pulled toward the category average (4.88★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.92

5Simba General Contractors★ 5.00 on this job11 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “General construction”:Stars on this job 55%5.00★Number of such jobs 25%11Overall Experts Score 20%87Job match= 90Stars are pulled toward the category average (4.88★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.90

6Boston 5 Star Contractors★ 5.00 on this job3 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “General construction”:Stars on this job 55%5.00★Number of such jobs 25%3Overall Experts Score 20%67Job match= 73Stars are pulled toward the category average (4.88★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.73

7All Matters Construction★ 4.29 on this job7 jobs reviewediHow Job match is calculatedBuilt only from reviews Google tagged “General construction”:Stars on this job 55%4.29★Number of such jobs 25%7Overall Experts Score 20%58Job match= 53Stars are pulled toward the category average (4.88★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.53

Job match = this company’s ★ on reviews Google tagged “General construction” (shrunk toward the category average when there are few), how many such jobs it has done, and its overall Experts Score.

What customers said about general construction

MarioLocal Guide · 57 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 5 days ago★★★★★

Boston 5 Star Contractors

First job with Boston 5, there were quick to quote and communicated well with the scope of work to be done. Small 8x10 office buildout. The crew was polite and efficient and detail oriented. They took pride in their work, nice fit and clean finish. Nice to have a another contractor to call. Before and After photos

Reasonable priceGeneral construction

JLocal Guide · 13 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 6 days ago★★★★★

Simba General Contractors

Simba provided masonry and carpentry services to support a garage door repair/replacement. Their work was terrific from start to finish. Felix was curtious and professional in quoting the job, explaining their work plan, and answering all of my questions. And Ricardo, the lead craftsman, was meticulous. The job site… Read full review

General construction

Debra8 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 6 days ago★★★★★

Abacus

The whole Abacus team worked with us and responded to our specific requests during the project. They build a solid deck for us and we are quite pleased with the result. This was a tricky project, but Abacus was able to give us exactly what we wanted/needed. I recommend Abacus very highly.

Not sureGeneral constructionDeck installationDeck remodeling

Sean4 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

Alcantara Contractor

Cant say enough about Carlos and Andrea. I called Carlos late at night before a gig we were playing in Boston. We arrived and one of our instruments was damaged on the flight. Carlos managed to not only fix it, but also ensure that it was ready in time for us to play our show the very next day. Very skilled… Read full review

Great priceGeneral construction

AprilLocal Guide · 31 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited a month ago★

All Matters Construction

Sorry we went with this contractor. They installed a new bulkhead door and it’s leaking badly less than 3 years later. Ugly installation. Definitely not recommended. *Edited to add: they have seen this review, Johnathan reached out, came and saw the bad work, said they would fix it, and then ghosted. I guess they… Read full review

General construction

Andrea4 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

ACS Group Inc - General contractor

I have worked with this construction team for years. They consistently exceed my expectations. They go above and beyond, paying close attention to detail, while being professional and efficient. I am a perfectionist and their quality of work and commitment to making my vision a reality is unparalleled. I highly… Read full review

Great priceConstruction managementGeneral constructionTile work installation

Overall ratings

Experts Score 0–100iExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. and a letter grade per factor (A = top 20% of general contractors).

#	Company	ScoreiExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown.	FactorsiFactor grades, in orderSatisfaction (54%): Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Reliability (24%): How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Craft & service (0%): Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Value (14%): Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Momentum (0%): Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Replies to reviews (7%): How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.One letter per factor score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = below 20.	★iGoogle star rating as shown on Google Maps.	Typical billiMedian bill customers of this company reported in their reviews (needs 3+ priced reviews).
1	AJH Construction MaBoston, MA	A 99iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%99+58.1Reliability 26%97+25.3Value 15%100+15.2Experts Score= 99Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AA–AA–	5.00	—
2	Mark W. Quigley General ContractingBoston, MA	A 98iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%99+58.1Reliability 26%96+25Value 15%100+15.2Craft & service penalty98−0.2Experts Score= 98Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAA–	5.00	—
3	AbacusBoston, MA	A 95iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%94+51.3Reliability 24%95+23Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty99−0.1Experts Score= 95Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.93	—
4	Greater Boston ContractorsBoston, MA	A 92iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%93+54.6Reliability 26%95+24.8Value 15%84+12.8Experts Score= 92Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AA–AA–	4.94	—
5	ACS Group Inc - General contractorBoston, MA	A 89iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%92+54Reliability 26%78+20.3Value 15%100+15.2Craft & service penalty97−0.3Experts Score= 89Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	ABAAA–	4.93	—
6	Simba General ContractorsBoston, MA	A 87iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%89+52.2Reliability 26%81+21.1Value 15%90+13.7Experts Score= 87Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AA–AA–	4.86	—
7	Massachusetts General ContractorBoston, MA	A 86iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%86+46.9Reliability 24%87+21.1Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty67−3.3Experts Score= 86Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AABAAA	4.84	—
8	Alcantara ContractorBoston, MA	A 80iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%82+44.7Reliability 24%73+17.7Value 14%100+14.1Replies to reviews 7%94+6.6Craft & service penalty71−2.9Experts Score= 80Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	ABBAAA	4.79	—
9	Boston 5 Star ContractorsBoston, MA	B 67iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%75+40.9Reliability 24%65+15.8Value 14%97+13.7Replies to reviews 7%72+5.1Craft & service penalty72−2.8Momentum penalty44−5.6Experts Score= 67Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	BBBACB	4.76	—
10	All Matters ConstructionBoston, MA	C 58iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%66+36Reliability 24%51+12.4Value 14%100+14.1Replies to reviews 7%50+3.5Craft & service penalty99−0.1Momentum penalty20−8Experts Score= 58Grade C: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	BCAADC	4.75	—

What jobs cost

What customers paid, from the price Google asks reviewers to report.

General Contractors in Boston, MA at a glance

How the 10 general contractors we rated in Boston, MA compare, and what customers praise most.

How we grade

Satisfaction (54%) — Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.

Reliability (24%) — How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.

Craft & service (penalty, up to −10) — Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.

Value (14%) — Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.

Momentum (penalty, up to −10) — Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.

Replies to reviews (7%) — How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.