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Best Plumbers in Washington, IA (2026)

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

The short answer

  1. 1

    Best overall in Washington: Hawkeye Sewer & Drain, CR Score 60/100; 4.5★ from 112 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): A1 Sewer Service LLC, posts 24/7 hours; ranked #2 of 19.

  3. 5

    Most-reviewed: Streit's Maintenance, 68 Google reviews at 4.9★, the most of 19 ranked after Hawkeye Sewer & Drain; ranked #5.

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

19 Washington plumbers are ranked here by CR Score, from ten published factors. 3 are open 24/7, 6 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.5★ across 19 rated businesses.

Top 10 plumbers in Washington at a glance

Top 10 plumbers in Washington at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Hawkeye Sewer & Drain604.5★ (112)Iowa City, 23 mi away24/7Overall
2A1 Sewer Service LLC575.0★ (30)Iowa City, 23 mi away24/7Emergencies
3Nelson & Sons Plumbing & Heating554.2★ (17)Iowa City, 23 mi away24/7—
4City Sewer Service544.9★ (39)Iowa City, 18 mi away——
5Streit's Maintenance544.9★ (68)Iowa City, 24 mi away—Most reviews
6Parker plumbing and mobile home repair524.6★ (19)Iowa City, 24 mi awaySat—
7Carson Plumbing & Heating Services Inc525.0★ (12)Washington——
8Muller Plumbing & Heating514.3★ (31)Iowa City, 25 mi away——
9M&P Mechanical HVAC And Plumbing505.0★ (8)Washington——
10Buchmayer Plumbing & Home Repair503.4★ (21)Iowa City, 23 mi away——

The 19 best plumbers in Washington, ranked

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

  1. Ranked #1 in Washington

    Based in Iowa City, 23 mi away

    60/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.5★ from 112 Google reviews, the most in Washington.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.5★ from 112 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4532 Oak Crest Hill Rd SE, Iowa City, IA 52240
  2. Based in Iowa City, 23 mi away

    57/100CR Score

    Ranked #2 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 30 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
  3. Based in Iowa City, 18 mi away

    54/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 39 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 39 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
  4. Based in Iowa City, 24 mi away

    54/100CR Score

    Ranked #5 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 68 Google reviews
    Hours
    Mon–Fri 8:30 AM–3 PM · Sat–Sun closed
  5. Based in Iowa City, 25 mi away

    51/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.3★ from 31 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.3★ from 31 Google reviews
    Hours
    Mon–Fri 7 AM–3:30 PM · Sat–Sun closed
    Address
    97 Commercial Dr, Iowa City, IA 52246
  6. Based in Fairfield, 25 mi away

    50/100CR Score

    Ranked #11 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Plumber”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Sat 8 AM–5 PM · Sun closed
    Address
    807 W Stone Ave, Fairfield, IA 52556
  7. Based in Mount Pleasant, 24 mi away

    49/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.6★ from 11 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat 7 AM–6 PM · Sun 7 AM–5 PM
    Address
    300 N Rose St, Mt Pleasant, IA 52641
  8. Based in Fairfield, 24 mi away

    45/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 4.4★ from 7 Google reviews
    Address
    410 N 2nd St, Fairfield, IA 52556
  9. Based in Mount Pleasant, 24 mi away

    41/100CR Score

    Ranked #19 because of its Google rating and trade focus: 3.9★ from 9 Google reviews, listed on Google as “Excavating contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 3.9★ from 9 Google reviews
    Hours
    Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
    Address
    1105 W Washington St Suite 102, Mt Pleasant, IA 52641

Also serving Washington

6 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 Washington
BusinessGoogle ratingDistance
Fogle Basement RepairIn Washington
George Kondora Plumbing & Heating25 mi
Kowalke Plumbing Inc25 mi
South East Iowa PlumbingIn Washington
V & F Plumbing & Heating Co25 mi
Zager Plumbing-Heating & Bath5.0★ (1)In Washington

How much do plumbers cost in Washington?

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

How much do plumbers cost in Washington?
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 Iowa

In Iowa, Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals and Licensing) 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 Washington plumbers

We scored 19 Washington 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 Washington 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 Washington: frequently asked questions

Who is the best plumber in Washington?

By CR Score, the highest-ranked plumber in Washington, IA is Hawkeye Sewer & Drain with a CR Score of 60/100. It has 4.5★ from 112 Google reviews. It is open 24/7. A1 Sewer Service LLC (#2) and Nelson & Sons Plumbing & Heating (#3) follow. We ranked 19 plumbers on ten factors, last updated October 22, 2026.

How many plumbers are there in Washington?

ContractorsRanked ranks 19 plumbers serving Washington, IA. 2 of them are based in Washington; the rest serve it from nearby towns. Another 6 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which plumbers in Washington are open 24/7?

3 ranked plumbers in Washington post 24/7 hours. The highest-ranked are Hawkeye Sewer & Drain (#1), A1 Sewer Service LLC (#2) and Nelson & Sons Plumbing & Heating (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in Washington work on weekends?

6 of 19 ranked plumbers post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are Hawkeye Sewer & Drain (#1), A1 Sewer Service LLC (#2) and Nelson & Sons Plumbing & Heating (#3). Posted hours are office hours; crews may book weekend jobs separately.

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

In Iowa, Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals and Licensing) handles licensing and covers Plumbing work: water supply, drain, waste and vent piping and fixtures.

How much does water heater replacement cost in Washington?

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

What Google rating do Washington plumbers have?

The median Google rating among 19 rated plumbers in Washington is 4.5★, with a median of 17 reviews. Hawkeye Sewer & Drain has the most, 112 reviews, and ranks #1. 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 Washington

  1. October 2026: CR Scores recalculated for 19 plumbers serving Washington.