The Best Plumbing Contractors in Maple Valley, WA

Compare the highest-rated plumbing professionals in Maple Valley, Washington. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Mr. Rooter Plumbing of South King County

4.8
(200 reviews)
Verified

A highly-rated, franchise-based provider known for professional and prompt service, particularly in emergency situations. They offer 24/7 availability and are part of a national network, which often includes rigorous technician training and standardized pricing.

22613 92nd Pl S, Kent, WA 98031 (This is their main office, and they serve Maple Valley)

Specialties & Features

Emergency plumbing repairs
Drain cleaning and sewer services
Water heater installation and repair

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Auburn Plumbing

4.7
(150 reviews)
Verified

A well-established, local family-owned business that has been serving the South King County region for decades. They have a strong reputation for reliability, honest diagnostics, and high-quality workmanship on both residential and commercial projects.

1116 A St NE, Auburn, WA 98002 (Serves the broader area including Maple Valley)

Specialties & Features

Pipe installation and replacement
Residential and commercial plumbing services
Bathroom and kitchen plumbing

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

All Service Plumbing

4.9
(80 reviews)
Verified

A highly-specialized, expert plumbing contractor focusing on complex installations, repipes, and leak detection. They are known for tackling difficult jobs that other plumbers may avoid and have built an exceptional reputation for technical expertise.

They are a mobile service based in Covington, WA, serving Maple Valley and the surrounding communities.

Specialties & Features

Leak detection and repair
Pipe installation and replacement
Water heater installation and repair

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top Plumbing Contractors in Maple Valley

** The plumbing market in Maple Valley is competitive but leans towards quality and reliability over low-cost options. As a community with a mix of newer developments and older homes, there is consistent demand for both emergency repairs and scheduled renovation/installation work. The market is served by a combination of a few highly-rated local independents and larger, established companies from neighboring hubs like Kent, Auburn, and Covington. * **Average Quality:** High. Customers in this area expect professional, licensed, and insured technicians. The top-rated companies consistently have ratings above 4.5 stars. * **Competition Level:** Moderate to High. While there may not be dozens of plumbing companies physically located within Maple Valley's city limits, many highly-qualified providers from the immediate region compete for business there. * **Typical Pricing:** Pricing is generally in line with the broader Puget Sound region, which is above the national average. Factors contributing to this include higher costs of living, business licensing, and insurance. Most reputable companies charge service call fees ranging from $100 - $200, with hourly labor rates between $130 - $200+. It is standard practice for companies to provide upfront, project-based quotes for larger jobs like water heater replacements or re-pipes.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Maple Valley regulations and climate

Frequently Asked Questions About Plumbing in Maple Valley

Get answers to common questions about plumbing services in Maple Valley, Washington.

1What are the most common plumbing issues for Maple Valley homeowners, especially related to our climate?

The most frequent issues are related to our wet, cool climate and clay-rich soil. These include sewer line backups and root intrusion due to trees seeking moisture, as well as frozen pipe risks during our occasional hard freezes in winter. Additionally, water heater strain is common due to our naturally cold groundwater, requiring the unit to work harder to heat your water.

2How do I choose a reputable plumber in Maple Valley, and are there specific local licenses I should verify?

Always verify the plumber holds a valid Washington State Plumbing Contractor (UPC) license, which is required to operate legally. For Maple Valley specifically, choose a provider familiar with local soil conditions and King County codes. Check reviews for promptness, as rural areas can have longer travel times, and ensure they offer emergency services for urgent issues like burst pipes.

3What is the typical cost range for common plumbing services like water heater replacement or drain cleaning in Maple Valley?

Costs vary, but a standard 50-gallon water heater replacement typically ranges from $1,800 to $3,200, factoring in labor, the unit, and any needed code upgrades. Basic drain cleaning can be $150-$350, but sewer line repairs are often more expensive ($3,000-$10,000+) due to challenging soil conditions. Always get a detailed, written estimate that includes all potential fees.

4Are there seasonal plumbing maintenance tasks I should prioritize in Maple Valley?

Yes. Before winter (late fall), it's critical to disconnect garden hoses, insulate exposed pipes in unheated spaces like crawl spaces, and know how to shut off your main water valve to prevent freeze-related bursts. In spring, check for leaks from winter damage and consider having your sewer line inspected via camera to check for root growth before the rainy season subsides.

5Does Maple Valley or King County have any specific plumbing code requirements or rebates I should know about?

King County enforces the Uniform Plumbing Code (UPC) and may have specific requirements for backflow prevention and sewer connections. For water conservation, consider that Washington State offers sales tax exemptions on certain WaterSense-labeled fixtures. Additionally, some local utilities offer rebates for replacing old toilets or installing high-efficiency water heaters, so it's worth checking with the Maple Valley Water District.