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When constructing a new house, understanding the cost of plumbing services is essential for budgeting and planning purposes. In this blog, we’ll delve into the factors that influence plumbing service costs for new homes in Bellevue, WA, and provide you with the latest data from the Bellevue, Redmond, Sammamish region to help you make informed decisions. Additionally, we’ll explain why Green House Plumbing and Heating is your go-to plumbing contractor among plumbing and heating companies in the area.


  1. Cost to Install Plumbing: The cost to install plumbing varies based on factors such as house size, materials, and labor costs. In the Bellevue, Redmond, Sammamish region, the average cost to install new plumbing ranges from $4.50 to $6.50 per square foot. For a typical 2,000-square-foot house in Bellevue, WA, the average cost to install new plumbing is approximately $9,000 to $13,000. This includes materials, labor, and permits. However, individual projects may vary based on the factors mentioned in this blog.


  1. Cost to Plumb a Brand-New House: The cost to plumb a brand-new house depends on the house size, layout, and the complexity of the plumbing system. For example, a 2,000-square-foot house with two bathrooms and a kitchen might cost around $11,000 to $15,000 for the plumbing installation, including fixtures and appliances.


  1. Rough-In Plumbing Costs: Rough-in plumbing is the initial phase of plumbing installation, where pipes are installed without being connected to fixtures or appliances. The average cost for rough-in plumbing in the Bellevue, Redmond, Sammamish region is $3,000 to $8,000, depending on the complexity of the system and the materials used.


  1. Additional Costs to Consider: When budgeting for plumbing services, consider additional costs such as:


  1. Permits and inspections: Depending on your locality, you may need to obtain permits and pass inspections for plumbing work. The cost for these permits and inspections typically ranges from $200 to $500. Keep in mind that some contractors may include permit and inspection fees in their quotes, so it’s essential to clarify this with your plumbing contractor.
  2. Plumbing fixtures and appliances: The cost of plumbing fixtures and appliances can add significantly to your project’s overall cost. Toilets, faucets, and showerheads range from $100 to $1,000 or more, while water heaters can cost anywhere from $800 to $3,000. Upgrading to high-end fixtures and appliances can increase the overall cost of your plumbing project.
  3. Upgrading to energy-efficient systems: Installing energy-efficient plumbing systems can result in long-term energy savings, but they often come with higher upfront costs. For example, upgrading to a tankless water heater can cost an additional $300 to $800 compared to a traditional storage-tank water heater. However, the energy savings over time may offset the initial investment.


  1. Factors That Affect the Cost of Plumbing Installation: Several factors can affect the cost of plumbing installation, including:
    1. House size and layout: The size and layout of your house will significantly impact the amount of materials and labor needed for plumbing installation. Larger homes with multiple stories or more complex layouts will require more piping and labor, resulting in higher costs.
    2. Plumbing materials: The type of materials used in your plumbing system will affect the overall cost. Common materials include PEX, PVC, and copper pipes. PEX and PVC are generally more affordable options, while copper pipes are more expensive but offer increased durability and resistance to corrosion.
    3. Fixtures and appliances: The cost of plumbing fixtures and appliances, such as water heaters, toilets, and faucets, can vary widely based on the brand, style, and quality you choose. Higher-end fixtures and appliances typically come with higher price tags.
    4. Labor costs and regional price variations: Labor costs can vary depending on your location and the specific plumbing contractor you choose. In areas with a higher cost of living or a higher demand for plumbing services, labor costs may be higher. It’s essential to get multiple quotes from different plumbing and heating companies to ensure you’re getting the best value for your money.
    5. Permits and inspections: As mentioned earlier, permits and inspections may be required for plumbing work, adding to the overall cost. Be sure to factor these fees into your budget and clarify with your plumbing contractor whether they are included in their quote.


Frequently Asked Questions (FAQs)

Q: Can I save money by doing some of the plumbing work myself?

A: While it might be tempting to save money by doing some plumbing work yourself, it’s generally best to leave plumbing installation to licensed professionals. Doing so ensures the work is done correctly and safely, and that it complies with local building codes.

Q: What are some tips for Choosing a Plumber Service for Your New House

When looking for plumbing and heating companies, consider the following factors to ensure you choose a reliable and competent plumber service:

  • Experience: Opt for a plumbing contractor with a proven track record and experience in new construction projects.
  • Licensing and Insurance: Make sure the plumber service is fully licensed and insured, protecting you from potential liabilities.
  • Referrals and Reviews: Check online reviews and ask for referrals from friends or family members who have had positive experiences with plumbing and heating companies in the area. Check our 300+ Google reviews to learn about out commitment to customers
  • Communication: A reputable plumber service will be responsive, willing to address your concerns, and provide clear explanations about their services and pricing.


Q: How can I reduce the cost of plumbing installation?

A: To reduce the cost of plumbing installation, you can:

  • Compare quotes from multiple plumbing contractors to find the best value.
  • Choose more affordable plumbing materials, such as PEX or PVC pipes instead of copper.
  • Opt for standard fixtures and appliances rather than high-end options.
  • Consider scheduling your plumbing work during the off-season when demand for plumbing services might be lower, potentially leading to discounted rates.

Q: How do I choose the right plumbing materials for my new house?

A: When choosing plumbing materials, consider factors such as cost, durability, and ease of installation. PEX and PVC pipes are generally more affordable and easier to install, while copper pipes offer increased durability and resistance to corrosion. Consulting with a professional plumber, like those at Green House Plumbing and Heating, can help you make the best choice for your specific needs and budget.


Q: How long does it take for a plumbing contractor to complete a new construction plumbing project?

A: The duration of a new construction plumbing project depends on the size and complexity of the house and the plumbing system. For an average-sized house, the plumbing work may take anywhere from a couple of weeks to a few months. This includes rough-in plumbing, fixture and appliance installation, and any necessary inspections.


Q: Is it necessary to hire a plumbing contractor, or can I rely on a general contractor for my new house’s plumbing work?

A: While some general contractors may have experience with plumbing work, it’s generally best to hire a specialized plumbing contractor for your new house’s plumbing system. Plumbing contractors have the necessary expertise, tools, and licensing to ensure that your plumbing system is installed correctly, safely, and in compliance with local building codes.



The cost of plumbing services for a new house in Bellevue, WA, can vary depending on several factors. By keeping these factors in mind and choosing a reliable plumbing contractor like Green House Plumbing and Heating, you can ensure a seamless and stress-free experience for your new home’s plumbing system. Contact us today to discuss your new construction project and receive a customized quote for our exceptional plumber service. At Green House Plumbing and Heating, we pride ourselves on being a top plumbing contractor in Bellevue, WA. Here’s why we’re your go-to choice for plumbing services:

  • Transparent Pricing: We offer competitive and transparent pricing, ensuring you have a clear understanding of the costs associated with your new home’s plumbing system.
  • Expertise: Our team of skilled and experienced plumbers can handle any plumbing project, ensuring that your new home’s plumbing system is installed and functions optimally.
  • Comprehensive Services: We provide a full range of plumbing and heating services, including installation, repair, and maintenance for new construction projects.



Table 1: Average Cost to Install Plumbing in a New House (Bellevue, Sammamish, Redmond, Issaquah)

Size of House (Square Feet) Cost Range
1,000 – 1,500 $8,000 – $12,000
1,500 – 2,000 $12,000 – $18,000
2,000 – 2,500 $18,000 – $24,000
2,500 – 3,000 $24,000 – $30,000
3,000+ $30,000+


Table 2: Rough-In Plumbing Costs

Type of Fixture Cost Range
Toilet $500 – $1,000
Sink $500 – $1,000
Bathtub/Shower $1,000 – $2,000
Water Heater $1,000 – $3,000


Table 3: Additional Costs to Consider

Additional Cost Cost Range
Pipe Insulation $1 – $3 per linear foot
Water Treatment System $500 – $3,000
Sewer Line Installation/Replacement $50 – $250 per linear foot


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