191 masonry contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Clarksburg: GiROSS CHIMNEY & DUCT SERVICES, CR Score 88/100; 4.8★ from 267 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Brick Street Plumbing, Water Heaters, AC & Furnace Repair, posts 24/7 hours; ranked #2 of 191.
Most-reviewed: High's Chimney Service, 691 Google reviews at 4.8★, the most of 191 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
191 Clarksburg masonry contractors are ranked here by CR Score, from 8 published factors. 12 are open 24/7, 114 open Saturdays and 40 open Sundays, based on posted hours. The median Google rating is 4.8★ across 191 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | GiROSS CHIMNEY & DUCT SERVICES | 88 | 4.8★ (267) | Gaithersburg, 8 mi away | Sat · Sun · Evenings | Overall |
| 2 | Brick Street Plumbing, Water Heaters, AC & Furnace Repair | 83 | 4.6★ (203) | Leesburg, 17 mi away | 24/7 | Emergencies |
| 3 | High's Chimney Service | 82 | 4.8★ (691) | Gaithersburg, 8 mi away | — | Most reviews |
| 4 | Capitol Improvements - Gaithersburg Roofing Company & Siding Contractors | 82 | 5.0★ (157) | Gaithersburg, 7 mi away | Sat · Sun · Evenings | — |
| 5 | Brick Street Plumbing & HVAC | 82 | 4.2★ (364) | Frederick, 14 mi away | 24/7 | — |
| 6 | NRC Landscape Construction | 81 | 5.0★ (41) | McLean, 22 mi away | Sat · Sun | — |
| 7 | Old World Stone, LLC | 81 | 4.6★ (9) | Germantown, 5 mi away | — | — |
| 8 | Architecture Stones - Veria Marble, Granite & Quartz Countertops | 81 | 4.6★ (225) | Rockville, 13 mi away | Sat · Sun | — |
| 9 | Testa Asphalt Paving, Inc. | 80 | 4.5★ (184) | Frederick, 13 mi away | 24/7 | — |
| 10 | Lifestyle masonry | 80 | 5.0★ (81) | Bethesda, 20 mi away | Sat · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 267 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Leesburg, 17 mi away
Ranked #2 because of its Google rating and availability: 4.6★ from 203 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gaithersburg, 8 mi away
Ranked #3 because of its Google rating and review volume: 4.8★ from 691 Google reviews, the most Google reviews on this list (691).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gaithersburg, 7 mi away
Ranked #4 because of its Google rating and review volume: 5.0★ from 157 Google reviews, 157 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Frederick, 14 mi away
Ranked #5 because of its Google rating and availability: 4.2★ from 364 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in McLean, 22 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Germantown, 5 mi away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Masonry contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Rockville, 13 mi away
Ranked #8 because of its Google rating and review volume: 4.6★ from 225 Google reviews, 225 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Frederick, 13 mi away
Ranked #9 because of its Google rating and availability: 4.5★ from 184 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bethesda, 20 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 81 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gaithersburg, 8 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 9 Google reviews, listed on Google as “Masonry contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Frederick, 13 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 67 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Silver Spring, 20 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Silver Spring, 16 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 52 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gaithersburg, 8 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 29 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Damascus, 7 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 636 Google reviews, 636 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Spring Ridge, 11 mi away
Ranked #17 because of its Google rating and availability: 5.0★ from 22 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Rockville, 12 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 25 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Beltsville, 24 mi away
Ranked #19 because of its Google rating and availability: 4.9★ from 101 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Darnestown, 12 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Rockville, 11 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 83 Google reviews, listed on Google as “Paving contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in East Hanover, 20 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bethesda, 17 mi away
Ranked #23 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Germantown, 7 mi away
Ranked #24 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Merrifield, 24 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 191 ranked masonry contractors here; the rest are on their profiles.
20 more masonry contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
We scored 191 Clarksburg masonry contractors on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Clarksburg data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |