Metal Fabrication For Wastewater Treatment​

Complex wastewater treatment fabrication for contractors and operators

Maplevale Fabrications delivers CWB-certified, NSF 61-certified, and TSSA-registered pipe, structural steel, and custom vessel fabrication for wastewater treatment systems with lead times as short as 2–3 weeks.

Send Your Specs
35+ Years

Decades of experience fabricating for complex industrial and municipal wastewater treatment projects.

108″ Diameter Pipe Capabilities

Pipe fabrication capacity up to 108″ in diameter, including heavy wall and high-pressure wastewater treatment systems.

20 Acres

Facility space built to handle large-scale waste treatment fabrication, staging, and delivery without delays.

Why Maplevale Fabrications?

Why Contractors and Operators Choose Our Waste Treatment Fabrication Services

Wastewater treatment projects are among the most demanding fabrication scopes in the industry. Tight tolerances, aggressive processes, high-pressure systems, and strict regulatory compliance requirements leave no room for a fabricator that can’t keep up.

Maplevale Fabrications specializes in complex pipe and structural fabrication for wastewater treatment systems, including heavy-wall high-pressure piping, incineration duct systems, custom tanks and vessels, aeration piping, and all piping systems associated with typical wastewater treatment. With in-house Revit MEP detailing, NSF 61 certification, CWB Certification, and TSSA registration for pressure vessels and boilers, we’re built for the work other shops turn away.

Shorter Lead Times

With lead times as short as 2–3 weeks, we can take on urgent work and rush jobs when other shops can’t fit you in. For critical situations, we’ll work with your team to turn solutions around as fast as 24 hours.

NSF 61 Certified

We’re certified to fabricate for some of the most sensitive and heavily regulated wastewater treatment applications in the industry, including municipal and industrial scopes.

Sketch to Fabrication

Share your field dimensions or a rough sketch, and we’ll take it from there, developing full Revit drawings and a complete fabrication package in-house.

Field Installation Available

If your project requires it, our team can provide on-site installation support to ensure the work is completed correctly.

How It Works

Our Metal Fabrication for Wastewater Treatment​ Process

01

RFQ Review & Drawings

Send us your drawings and specs, and we’ll get to work on pricing right away. If you’re coming to us without drawings, we’ll use Revit to build out a detailed 3D model and define the scope before we put a number to it.

A person interacts with a computer screen displaying a technical 3D schematic. The background shows a blurred, modern industrial workspace.
02

Quotation & Project Setup

You’ll receive a formal quote with a clear scope and estimated delivery timeline. From there, a purchase order or written authorization gets the project moving — we assign a job number, order materials, and get fabrication drawings in front of you for sign-off.

A person writes on architectural plans with a pen, surrounded by a calculator, rolled blueprints, and a tablet. The scene conveys focus and precision.
03

Material Receiving & Inspection

Nothing hits the shop floor until it’s been checked. All incoming materials are verified against your project specs on arrival.

Industrial workshop with large black pipes and fittings on the floor. Background includes tools, equipment, and machinery, conveying a busy, utilitarian atmosphere.
04

Fit-Up & Welding

Components go through a full fit-up stage before any welding begins, with our fitters and welders working closely together to ensure everything is properly aligned and assembled.

Worker in protective gear uses an angle grinder inside a large metal pipe, producing bright, dynamic sparks. Industrial and skillful atmosphere.
05

Weld Inspection & NDE

A visual inspection is performed on every weld. If your spec calls for it, we bring in a third party to carry out non-destructive examination, including dye penetration and X-Ray.

A hand holds an ultrasonic thickness gauge on a metal pipe, with a blurred screen showing readings in the background. The scene conveys precision and technology.
06

Post-Fabrication Processing

Stainless steel gets pickled, passivated, and washed before it goes anywhere. Carbon steel is checked and moved to the delivery staging area. All individual spool pieces receive unique identifying tags that match your fabrication drawings to make on-site installation and inventory seamless.

A worker in a yellow hard hat and overalls uses a tool to handle metal near a molten zinc bath in an industrial setting. Another worker watches nearby.
07

Final Quality Check

Before anything is loaded for shipping, each component goes through a final inspection. Identification stickers are applied so your crew on site knows exactly what they’re working with.

A worker in a blue jacket and yellow hard hat inspects large metal coils in a warehouse. He is crouched down, focusing intently on the materials.
08

Shipping & Invoicing

Delivery timing is confirmed with you throughout the fabrication process, so there are no surprises when your order is ready to ship. A detailed packing slip accompanies your shipment, followed by an invoice on agreed terms.

A blue semi-truck transports a large, silver cylindrical tank on a flatbed trailer down a highway at sunset, with mountains in the background.

Maplevale consistently demonstrates strong technical capability, dependable delivery, and a commitment to fabricating piping systems that meet demanding project specifications and construction schedules. Their high-quality shop fabrication, attention to detail, and accuracy support efficient field installation while minimizing on-site modifications. Their team is responsive and collaborative, and W.A. Stephenson Mechanical Contractors Ltd. confidently recommends Maplevale as a reliable fabrication partner.


Mark Thomas
Project Manager
W.A. Stephenson Mechanical Contractors Ltd.
A worker in protective gear welds a large metal duct in an industrial workshop. The setting appears busy with tools and equipment in the background.

For more than 20 years, Maplevale Fabrications has been a leader in Pipe Fabrication and has always been an important contributor to our project’s successes.

Maplevale Fabrications seems to find a way to be a supportive, key contributor to each and every project they execute, providing me with exceptional service, quality product, and very competitive pricing.


Bill Myslow
Purchasing Manager
Alberici Constructors, Ltd.
A worker in protective gear welds a large metal duct in an industrial workshop. The setting appears busy with tools and equipment in the background.

We have been partnering with Maplevale since 2024.
From tight deadlines to large scale projects, they have consistently accommodated our needs and met our expectations. Their reliability, responsiveness, and quality of work make them a trusted partner.


Joander Ogando
Plant Manager
Landmark Structures
A worker in protective gear welds a large metal duct in an industrial workshop. The setting appears busy with tools and equipment in the background.
Our Wastewater Treatment Fabrication Services

Certified Fabrication Services for the Wastewater Industry

Whatever your wastewater project calls for, our certified team has the equipment, credentials, and experience to fabricate it to spec.

Heavy Wall & High-Pressure Piping

Schedule 80 high-pressure piping systems fabricated in carbon and stainless steel, with diameter capacity up to 108″.

Structural Steel Fabrication

Structural members and support steel fabricated to integrate with your piping runs, equipment mounts, and mechanical layouts.

Pressure Vessels & Custom Tanks

TSSA-registered fabrication of pressure vessels, boilers, and custom tanks, including scum hoppers, UV tanks, and sand filters.

Incineration Piping

Full incineration piping systems fabricated in-house, including refractory lining and dryout, so your components arrive site-ready.

Custom Air Headers

Custom air headers for mixing and aeration systems, fabricated to your exact process and installation requirements.

Pipe Supports

Engineered and made to suit your piping system.

In-House Revit Detailing

Detailed 3D Revit MEP drawings developed in-house to define scope, catch interferences early, and generate accurate cut lists before fabrication begins.

Recent Projects

What We’ve Built

By: maplevalefab | January 2, 2025 | Uncategorized

Lakeview Village Sewage Pumping Station

This project involves  fabricating piping for the Valve Chamber / Forcemain Gallery at the Lakeview Village Sewage Pumping Station in the Region of Peel. This project involves fabricating 316 Stainless Steel – Schedule 40 piping for four 16″Ø wet well discharge pumps and two 20″Ø forcemains. The scope includes pipe sizes ranging from 3″ to  … Read more

Read More
By: maplevalefab | December 9, 2024 | Current Projects

G. E BOOTH WRRF – TOX 3 – DUCTS

This project involves the fabrication of stainless steel and carbon steel ducts, with diameters ranging from 56″ to 72″. All components, including 90° miters, will be custom-designed and fabricated in-house to ensure quality and precision. The ducts will be bolted to existing pieces, making accuracy critical for seamless integration.  

Read More
By: maplevalefab | | Current Projects

TOX 3 AND ANCILLARY SYSTEM REFURBISHMENT – EFFLUENT WATER PIPING

NEW 316 SS – SCH 40 – 16″, 12″, 8″ & 4″  EFFLUENT WATER PIPING.  

Read More
Accreditations

Equipped to Deliver

Badge NSF
Badge CWB
Badge TSSA
Badge Proudly Canadian

Frequently Asked Questions

What types of wastewater treatment systems do you fabricate components for?

We fabricate for a broad range of wastewater treatment systems from primary treatment to tertiary treatment. Whether your facility is processing organic matter, fine particulates, slurry, or industrial liquids, our team has the capability to fabricate components that support reliable separation, sludge recycling, and more.

What NDE testing do you offer for?

Every weld receives a visual inspection as standard. Where your specifications require it, we coordinate third-party non-destructive examination, including radiographic testing, magnetic particle inspection, and dye penetrant testing. These methods help maintain the structural integrity of clarifiers, dewatering system components, and high-pressure piping where contaminants, sludge, and solids put constant stress on fabricated assemblies.

Are your welders certified?

The welders working on metal fabrication for waste management​ are CWB-certified and TSSA-certified, which is essential for projects where corrosion resistance and weld integrity directly affect the longevity and performance of your wastewater treatment operations.

What types of contaminants and wastewater streams can your fabricated systems handle?

We fabricate for a wide range of waste streams, including systems handling heavy metals such as chromium, copper, and aluminum, as well as oils, suspended solids, and other contaminants common in metal finishing operations and manufacturing. Our certified fabrication ensures components perform reliably in demanding chemical environments where pH, corrosion, and flow rates are critical to safe separation, recovery, and ensuring treated water can be safely discharged to waterways.

Let’s Get Started

Ready to Get Your Project Moving?

Get in touch today to discuss your upcoming project and see how our speed, quality, and compliance expertise can keep you on schedule and under budget.