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Best Plumbers in Alexandria, VA (2026)

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

The short answer

  1. 1

    Best overall in Alexandria: Len the Plumber Heating & Air, LLC, CR Score 66/100; 4.7★ from 6,899 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Cardinal Plumbing Heating & Air Inc, posts 24/7 hours; ranked #2 of 732.

  3. 22

    Most-reviewed: Michael & Son Services, 15,537 Google reviews at 4.7★, the most of 732 ranked; ranked #22.

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

732 Alexandria plumbers are ranked here by CR Score, from ten published factors. 281 are open 24/7, 486 open Saturdays and 378 open Sundays, based on posted hours. The median Google rating is 4.9★ across 732 rated businesses.

Most of this list also appears on the Plumbers in Arlington ranking. See Plumbers in Arlington

Top 10 plumbers in Alexandria at a glance

Top 10 plumbers in Alexandria at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Len the Plumber Heating & Air, LLC664.7★ (6,899)Alexandria24/7Overall
2Cardinal Plumbing Heating & Air Inc654.9★ (1,720)Alexandria24/7Emergencies
3Roto-Rooter Plumbing & Water Cleanup654.9★ (1,029)Alexandria24/7—
4The Pipe Doctor Plumbing & Drain Cleaning Services644.9★ (671)Alexandria24/7—
5Roto-Rooter Plumbing & Water Cleanup634.8★ (2,719)Washington, D.C., 9 mi away24/7—
6Roto-Rooter Plumbing & Water Cleanup624.8★ (1,503)Springfield, 9 mi away24/7—
7Roto-Rooter Plumbing & Water Cleanup624.9★ (571)Arlington, 8 mi away24/7—
8O'Neill Plumbing Services L.L.C.624.7★ (256)Alexandria24/7—
9Cherry Blossom Plumbing624.9★ (453)Arlington, 8 mi away24/7—
10District Capital Services LLC614.9★ (269)Washington, D.C., 6 mi away24/7—

The 732 best plumbers in Alexandria, ranked

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

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  13. #13 Home Service Doctors

    Based in Fairfax, 15 mi away

    61/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.8★ from 2,036 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 2,036 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10560 Main St Suite PS 100, Fairfax, VA 22030
    View profile for Home Service Doctors(703) 468-4027

  14. #14 The Secret Plumber

    Based in Alexandria

    61/100CR Score

    Ranked #14 because of its Google rating and trade focus: 5.0★ from 69 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 69 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6726 W Wakefield Dr, Alexandria, VA 22307
    View profile for The Secret Plumber(703) 688-8434

Also serving Alexandria

1 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 Alexandria
BusinessGoogle ratingDistance
ACW Service Inc.5.0★ (491)14 mi

How much do plumbers cost in Alexandria?

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

How much do plumbers cost in Alexandria?
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 Virginia

In Virginia, Virginia Board for Contractors (DPOR) licenses Contractor license with a plumbing specialty; plumbers hold tradesman licenses.

  1. Search the business name or license number on the Virginia Board for Contractors (DPOR) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. 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 Alexandria plumbers

We scored 732 Alexandria plumbers on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Alexandria data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Plumbers in Alexandria: frequently asked questions

Who is the best plumber in Alexandria?

By CR Score, the highest-ranked plumber in Alexandria, VA is Len the Plumber Heating & Air, LLC with a CR Score of 66/100. It has 4.7★ from 6,899 Google reviews. It is open 24/7. Cardinal Plumbing Heating & Air Inc (#2) and Roto-Rooter Plumbing & Water Cleanup (#3) follow. We ranked 732 plumbers on ten factors, last updated October 22, 2026.

How many plumbers are there in Alexandria?

ContractorsRanked ranks 732 plumbers serving Alexandria, VA. 10 of them are based in Alexandria; the rest serve it from nearby towns. Another 1 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which plumbers in Alexandria are open 24/7?

281 ranked plumbers in Alexandria post 24/7 hours. The highest-ranked are Len the Plumber Heating & Air, LLC (#1), Cardinal Plumbing Heating & Air Inc (#2) and Roto-Rooter Plumbing & Water Cleanup (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in Alexandria work on weekends?

486 of 732 ranked plumbers post Saturday hours and 378 post Sunday hours. The highest-ranked open Saturdays are Len the Plumber Heating & Air, LLC (#1), Cardinal Plumbing Heating & Air Inc (#2) and Roto-Rooter Plumbing & Water Cleanup (#3). Posted hours are office hours; crews may book weekend jobs separately.

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

In Virginia, Virginia Board for Contractors (DPOR) handles licensing and covers Contractor license with a plumbing specialty; plumbers hold tradesman licenses. Search the business or license number at https://www.dpor.virginia.gov/LicenseLookup.

How much does water heater replacement cost in Alexandria?

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 Alexandria. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Alexandria plumbers have?

The median Google rating among 732 rated plumbers in Alexandria is 4.9★, with a median of 31 reviews. Michael & Son Services has the most, 15,537 reviews, and ranks #22. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Alexandria

  1. October 2026: CR Scores recalculated for 732 plumbers serving Alexandria.
  2. October 2026: 7 duplicate listings merged.

More plumbers and Alexandria pages

Other trades in Alexandria