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5.0
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Project Spotlights, Residential Plumbing Guidance

High-Efficiency Boiler Replacement

Contact Optimal Plumbing today at (414) 387-2332 to schedule a consultation or learn more about our boiler replacement services.

Recent Job by Optimal Plumbing: Boiler Replacement

When an aging boiler begins to lose efficiency or reliability, replacing it with a modern, high-performance system can make a significant difference in comfort, safety, and energy savings. Recently, Optimal Plumbing completed a full boiler replacement project that showcases our detailed process, technical expertise, and commitment to doing the job right the first time.

Project Overview

For this project, our goal was to safely remove an existing boiler and install a new high-efficiency MODCON ELX-800FBN boiler, seamlessly integrating it with the building’s existing infrastructure. Every step was planned to ensure safe operation, code compliance, and long-term reliability.

Safe Decommissioning & Removal

Safety always comes first. Our team carefully locked out and tagged out all electrical and fuel sources before beginning work. The existing boiler was isolated from the hydronic heating system, fully drained, and disconnected from all associated components, including gas piping, water lines, electrical connections, controls, and venting. Once disconnected, the old unit was removed from the site for proper disposal.

Installation of the New High-Efficiency Boiler

The new MODCON ELX-800FBN boiler was set and secured in the location of the previous unit. Our plumbers reconnected all critical systems, including:

  • Natural gas piping, modified as needed for a secure and safe fit

  • Supply and return water piping aligned to the new boiler’s specifications

  • Venting and air intake adjusted to meet manufacturer requirements and local codes

  • Electrical supply and controls integrated with the existing system

Every connection was completed with precision to ensure safe and efficient operation.

System Commissioning & Testing

Once installed, the hydronic system was refilled, purged of air, and thoroughly checked for leaks. We then performed a complete system startup following manufacturer specifications, testing all safety controls and performance metrics to confirm the boiler was operating efficiently and correctly.

Clean Jobsite & Responsible Disposal

Throughout the project, we maintained a clean and organized work area. All debris and materials were removed, and the old boiler was disposed of in an environmentally responsible manner—leaving the site clean and orderly upon completion.

Permits & Warranty

Optimal Plumbing handled all required municipal and state permits for this boiler replacement. The new MODCON ELX-800FBN boiler is backed by a one-year parts and labor warranty, providing added peace of mind for the property owner.

Why Choose Optimal Plumbing?

  • Fully licensed, bonded, and insured

  • Honest, upfront pricing

  • Convenient scheduling and text updates

  • Clean, professional work from start to finish

We treat your home like our own—cleaning up after ourselves and ensuring everything works perfectly before we leave.

Need a Boiler Replacement?

Whether you’re dealing with an outdated boiler, rising energy costs, or system reliability concerns, Optimal Plumbing is here to help. Our licensed, insured, and experienced team manages every step—from permits to final testing—so you can trust the job is done correctly and up to code.

Contact Optimal Plumbing today to schedule a consultation or learn more about our boiler replacement services.

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Karen Wahlberg profile picture
Karen Wahlberg
9 September 2026
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Miltos was so pleasant and professional. He connected and moved our laundryroom water lines and washing machine expel behind the wall to our basement. He installed levers on our main water lines. He was very neat and conscientious. Would give Optomal Plumbing 10 stars! The owner and office staff were excellent. We will continue to use this company.
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Jerel Sehloff profile picture
Jerel Sehloff
6 September 2026
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Friendly and helpful. Replaced broken sump pump with new pump and back up. Explained the process and how the system worked. Very satisfied.
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paul woodley
3 September 2026
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One call and they are there,whenever i call. The crew, and office staff are the greatest. What ever home renovation im working on i make sure i call them...Thank you guys and I appreciate you all
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Tad Jameyfield profile picture
Tad Jameyfield
1 September 2026
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Great Service, communication, and work performed. very organized and thorough. Highly Recommend!
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Misha AC profile picture
Misha AC
28 August 2026
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Second experience with them 10/10. Had 2 leaky sinks that they repaired very quickly and we have not had issues since. We appreciated them coming so quickly. Will definitely continue to reach out for future needs
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Andrew Wilson profile picture
Andrew Wilson
27 August 2026
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Excellent service, got the back up sump pump installed quickly and properly, even have me a few tips on general plumbing maintenance. I would absolutely use them again. Clear pricing and different options based on my needs we're provided.
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Eileen Panacek profile picture
Eileen Panacek
25 August 2026
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Tyler did an outstanding job with installation of a new toilet and faucet. Would definitely hire Optimal Plumbing again.
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A M
25 August 2026
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Tyler did a great job replacing my laundry tub! I recommend this company for any plumbing job.
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Robert McElroy
21 August 2026
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Grateful for these guys! Honest work at a good price.
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David Gableman profile picture
David Gableman
21 August 2026
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Arrived promptly, explained everything very clearly. Addressed several issues, was very nice to get numerous annoyances repaired. Very pleased with my experience. NOTE: No compensation was provided for this review. UPDATED: I used Optimal for a second job. This time, I asked for a high quality outdoor faucet. I am annoyed with the cheap versions that always fail. Miltos researched some options, and eventually we agreed on a the product that seemed the best for me. I now regret not updating all my outdoor faucets! It is so nice having a high quality outdoor faucet. It seems like something minor, but every time I use the new faucet I am thankful for the work Optimal provided. If you are tired of outdoor faucets that are a nuisance to turn on and off, turning the faucet forever, and feel like they will cr;umble in your hand, I fully recommend upgrading to the faucet that Optimal recommended. Well worth the money.

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