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ContractorsRanked

Best Plumbers in Olney, MD (2026)

796 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Olney: Roto-Rooter Plumbing & Water Cleanup, CR Score 90/100; 4.8★ from 1,061 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Brian B. Quick Plumbing, posts 24/7 hours; ranked #2 of 796.

  3. 7

    Most-reviewed: Len The Plumber Heating & Air, LLC, 15,911 Google reviews at 4.7★, the most of 796 ranked; ranked #7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

796 Olney plumbers are ranked here by CR Score, from 8 published factors. 260 are open 24/7, 481 open Saturdays and 363 open Sundays, based on posted hours. The median Google rating is 4.8★ across 796 rated businesses.

Top 10 plumbers in Olney at a glance

Top 10 plumbers in Olney at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Roto-Rooter Plumbing & Water Cleanup904.8★ (1,061)Rockville, 7 mi away24/7Overall
2Brian B. Quick Plumbing904.9★ (1,368)Beltsville, 12 mi away24/7Emergencies
3MoCo Plumbing, LLC895.0★ (482)Germantown, 13 mi away24/7—
4Roto-Rooter Plumbing & Water Cleanup894.8★ (2,719)Washington, D.C., 16 mi away24/7—
5Roto-Rooter Plumbing & Water Cleanup894.8★ (1,211)Bethesda, 12 mi away24/7—
6Len The Plumber Heating & Air, LLC894.8★ (1,053)Beltsville, 11 mi away24/7—
7Len The Plumber Heating & Air, LLC894.7★ (15,911)Arbutus, 22 mi away24/7Most reviews
8Big Guy Plumbing885.0★ (71)Catonsville, 2 mi away24/7—
9Handyman At Your Command884.9★ (296)Bethesda, 10 mi away24/7—
10Clarksburg Plumbing LLC884.8★ (452)Clarksburg, 10 mi away24/7—

The 796 best plumbers in Olney, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  19. #19 Service Force Plumbing

    Based in Rockville, 5 mi away

    87/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 652 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 652 Google reviews
    Hours
    Mon–Thu 7 AM–9 PM · Fri 7 AM–5 PM · Sat–Sun 9 AM–5 PM
    Address
    706B E Gude Dr #3, Rockville, MD 20850
    View profile for Service Force Plumbing(301) 255-1821

  21. #21 The Drain Guys

    Based in Gaithersburg, 5 mi away

    87/100CR Score

    Ranked #21 because of its Google rating and availability: 4.7★ from 168 Google reviews, open 24/7.

    • 4.7★ from 168 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8041 Cessna Ave Ste 100, Gaithersburg, MD 20879
    View profile for The Drain Guys(301) 867-7632

Plumbers ranked #26 to #50

#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 796 ranked plumbers here; the rest are on their profiles.

plumbers in Olney, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Roto-Rooter Plumbing & Water Cleanup874.9★ (571)18 mi
27Benjamin Franklin Plumbing of Columbia874.9★ (257)14 mi
28BNH Home Services LLC875.0★ (111)12 mi
29Roto-Rooter Plumbing & Water Cleanup874.9★ (542)19 mi
30Cherry Blossom Plumbing874.9★ (453)18 mi
31Benjamin Franklin Plumbing of Mount Airy874.8★ (461)15 mi
32Catons Plumbing, Drains & Water Cleanup874.8★ (565)17 mi
33Catons Plumbing, Drains & Water Cleanup864.7★ (1,684)19 mi
34Essential Plumbing and Electric865.0★ (121)14 mi
35Straw Hat Plumbers & Drain Services of Germantown865.0★ (87)11 mi
36Prime Plumbing864.8★ (2,323)25 mi
37The Drain Fighter - Jetting & Drain Cleaning864.9★ (484)19 mi
38John C. Flood864.8★ (408)16 mi
39Len The Plumber Heating & Air, LLC864.6★ (8,136)10 mi
40Apple Plumbing, Heating, & Air865.0★ (216)19 mi
41Home Service Doctors864.8★ (2,036)25 mi
42Straw Hat Plumbers & Drain Cleaning of Rockville865.0★ (34)7 mi
43Brian B. Quick Plumbing864.9★ (946)25 mi
44Mayco Andrade Plumbing864.9★ (467)21 mi
45Roto-Rooter Plumbing & Water Cleanup864.8★ (647)20 mi
46Ferris Plumbing & Repair865.0★ (35)8 mi
47Cool Breeze Plumbing, Heating & A/C864.8★ (666)6 mi
48District Capital Services LLC864.9★ (269)19 mi
49Your 1 Plumber854.6★ (314)12 mi
50Another Plumber, Inc.855.0★ (29)8 mi

Also serving Olney

20 more plumbers within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked plumbers serving Olney
BusinessGoogle ratingDistance
AAB Drain Cleaning5.0★ (2)11 mi
All Clear Plumbing & Drain Service, LLC4.8★ (547)13 mi
Chuck The Plumber4.6★ (55)In Olney
Conrod's Plumbing Heating and A/C5.0★ (2)11 mi
Coutts Plumbing, Inc5.0★ (2)4 mi
Davis Plumbing & Heating Inc5.0★ (2)6 mi
DMV Plumbing Services5.0★ (2)6 mi
Ecker Plumbing5.0★ (2)7 mi
H Plumbing Inc.5.0★ (2)3 mi
Home Services at The Home Depot3.5★ (2)10 mi
Myers Plumbing Services Germantown MD5.0★ (2)11 mi
Nolan Home Improvement5.0★ (20)In Olney
Northeastern Supply4.0★ (2)11 mi
P W Scholl Plumbing & Heating Inc5.0★ (2)11 mi
R D Springer Plumbing & Heating5.0★ (2)11 mi
Rocket Rooter Plumbing3.0★ (2)9 mi
Rogers Plumbing3.0★ (2)6 mi
TechStar Services5.0★ (2)2 mi
WH Professional Plumbing Services5.0★ (2)11 mi
Your 1 Plumber3.0★ (2)11 mi

How much do plumbers cost in Olney?

National price ranges in USD, not adjusted for Olney. Each row names its basis and the month we checked it.

How much do plumbers cost in Olney?
JobLowTypicalHighBasisChecked
Water heater replacement$882$1,348$1,826Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026

How to check a plumber's license in Maryland

In Maryland, Maryland State Board of Plumbing licenses Plumbing work: water supply, drain, waste and vent piping and fixtures.

  1. Check that the status is active and the name matches the contract or truck.
  2. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

How we ranked Olney plumbers

We scored 796 Olney plumbers 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Olney data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Plumbers in Olney: frequently asked questions

Who is the best plumber in Olney?

By CR Score, the highest-ranked plumber in Olney, MD is Roto-Rooter Plumbing & Water Cleanup with a CR Score of 90/100. It has 4.8★ from 1,061 Google reviews. It is open 24/7. Brian B. Quick Plumbing (#2) and MoCo Plumbing, LLC (#3) follow. We ranked 796 plumbers on 8 factors, last updated October 22, 2026.

How many plumbers are there in Olney?

ContractorsRanked ranks 796 plumbers serving Olney, MD. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which plumbers in Olney are open 24/7?

260 ranked plumbers in Olney post 24/7 hours. The highest-ranked are Roto-Rooter Plumbing & Water Cleanup (#1), Brian B. Quick Plumbing (#2) and MoCo Plumbing, LLC (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in Olney work on weekends?

481 of 796 ranked plumbers post Saturday hours and 363 post Sunday hours. The highest-ranked open Saturdays are Roto-Rooter Plumbing & Water Cleanup (#1), Brian B. Quick Plumbing (#2) and MoCo Plumbing, LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check a plumber's license in Maryland?

In Maryland, Maryland State Board of Plumbing handles licensing and covers Plumbing work: water supply, drain, waste and vent piping and fixtures.

How much does water heater replacement cost in Olney?

Water heater replacement typically costs $882 to $1,826, with $1,348 typical (Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Olney. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Olney plumbers have?

The median Google rating among 796 rated plumbers in Olney is 4.8★, with a median of 29 reviews. Len The Plumber Heating & Air, LLC has the most, 15,911 reviews, and ranks #7. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank plumbers?

Each plumber gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Olney

  1. October 2026: CR Scores recalculated for 796 plumbers serving Olney.
  2. October 2026: 5 duplicate listings merged.

More plumbers and Olney pages

Other trades in Olney