Top Plumbing Companies in Washington
3.Spartan Plumbing, Heating and Air Conditioning
4.0★ (216 reviews)
4.0★ from 216 reviews
6.The Honest Plumbing & Drain Service near Washington, DC
4.8★ (33 reviews)
4.8★ from 33 reviews
Plumbing Cost in Washington
Local ranges, adjusted for area wage and cost-of-living data.
| Service | Typical range in Washington |
|---|---|
| Drain clearing | $169–$394/job |
| Leak repair | $169–$563/job |
| Water heater replacement | $1,351–$2,815/job |
| Repiping | $3,378–$9,008/job |
Plumbing prices in Washington run about 13% above the national average, based on what this trade earns in the metro area — so neighbouring cities in the same metro see similar rates.
Quotes on this page come from 9 companies serving Washington, rated 4.7★ on average across 3,684 customer reviews.
Washington Climate & Seasonal Timing
What Washington's weather means for scheduling plumbing.
- Last spring frost
- April 1
- First fall frost
- November 2
- Annual precipitation
- 43.53"
- Heating degree days
- 4,178
- Cooling degree days
- 1,533
| Month | Low | High | Precip |
|---|---|---|---|
| Jan | 26.7° | 44.3° | 3.09" |
| Feb | 28.8° | 48° | 2.9" |
| Mar | 36° | 56.4° | 3.72" |
| Apr | 45.3° | 67.5° | 3.51" |
| May | 55.1° | 76.7° | 4.28" |
| Jun | 64.7° | 85.6° | 4.08" |
| Jul | 69.6° | 89.6° | 4.32" |
| Aug | 67.7° | 88.3° | 3.41" |
| Sep | 59.4° | 81.1° | 3.76" |
| Oct | 47° | 69.9° | 3.79" |
| Nov | 38.3° | 59.3° | 3.47" |
| Dec | 30.1° | 48.2° | 3.2" |
NOAA station data 2.57 miles from Washington.
Permits & Regulations in DC
Permit typically required
- Plumbers and gasfitters are licensed by the Board of Industrial Trades under the Department of Licensing and Consumer Protection (DLCP)
- A Basic Business License is required alongside the trade license
- Applicants may sit the trade exam before applying for the license
License required: DLCP Board of Industrial Trades plumber and gasfitter license
Sources: dlcp.dc.gov
Plumbing FAQs for Washington
How much does a plumber cost in Washington?
Drain clearing in Washington typically runs $169-$394 per job.
Do I need a licensed plumber in Washington, DC?
In DC, Plumbers and gasfitters are licensed by the Board of Industrial Trades under the Department of Licensing and Consumer Protection (DLCP). Confirm the scope with the Washington building department before work starts.
How many plumbers serve Washington?
We track 9 plumbing professionals serving Washington.
Do pipes freeze in Washington?
Winter lows in Washington average around 27F, which is what decides whether exposed and exterior pipes here need insulating.
Is plumbing work in Washington more expensive than the national average?
Plumbing in Washington runs about +12.6% versus the national average.
Does Washington rainfall affect drains and sewer lines?
At 43.53 inches a year, Washington yards put real load on exterior drains, and heavy rain is usually when a root-blocked sewer line makes itself known.
How much do Washington water heaters have to work?
With 4,178 heating degree days, incoming water in Washington runs cold for a good part of the year, which is why water heater sizing matters more here than the tank label suggests.
When should I winterize plumbing in Washington?
Before the first frost around November 2 in Washington — hose bibs and irrigation lines are the usual first casualties.
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