Cover Systems

Aluminum Flat Panel Cover Systems

Pleasant Mount Welding, Inc.'s aluminum covers are an attractive and structurally sound alternative to traditional aluminum diamond plate cover systems. Utilizing custom extrusions, we can create either fixed panel cover systems or hinged panel cover systems for many different applications. We create innovative aluminum cover systems that offer cost-effective, long term solutions for architectural, municipal, and industrial storage applications. Our flat panel cover systems are widely used in the water and wastewater industries due to their chemical resistance, minimal lifetime maintenance requirements, and low construction cost. Every PMWI aluminum cover is custom designed to meet the specific requirements of each project and engineering for any snow, wind, and suspended load capacities. Pleasant Mount Welding, Inc.'s competitive advantage is our quality reputation, unmatched experience, and the fact that we are the complete package - we design, engineer, detail, and fabricate all of our covers in-house.

Aluminum Covers

Reservoir tank covers


Sludge holding tanks

Odor control


Storage vessels


Water & Wastewater Applications

  • Great for odor control applications

  • Easily customized to conform around penetrations or equipment

  • Substantially air tight enclosure

  • Reduced air volume for reduced air filtration costs - saving you energy

  • Hinged panels for access to large areas below the covers

  • Flat covers for heavy foot traffic and frequent access to equipment

  • Heavy duty, low deflection, non-skid walking surface

Flat Cover Features

Removable (hinged or fixed) panels

Gasketed panels

Reduce air volume

Slip resistance

Low deflection

Lifting handles

Water & Wastewater Reservoir Covers


The public's growing concern of clean water is pushing governments to implement legislation regarding water quality and municipal practices for protecting our environment. Storage facilities are being required to cover finished water reservoirs to help keep out contaminants. Our team of specialized engineers are experienced in creating custom solutions for covering clarifiers, reservoirs, sludge holding tanks, and many more storage facilities with our innovative aluminum covers. Our custom hinges allow for easy access to weirs, basins, blowers and any other equipment that is below the covers. This provides odor control and a safe working environment for plant operators. PMWI aluminum covers require little to no lifetime maintenance, reducing plant preservation costs and saves energy. Our covers are durable and strong enough to handle large loading requirements, allowing for safe navigation throughout the plant.

Aluminum Flat Panel

Cover System Accessories


Check out our product line for any accessories you need for your project. We are the complete package when it comes to wastewater facility renovations or new plant construction.

Bar Grating - Plank Grating - HandrailsPlatforms & Walkways, Stairs

Heavy Duty Aluminum Covers

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Heavy Duty Cover Features:​

  • Welded Construction

  • Pedestrian Span 5'-8" @ 100 lb/sqft uniform load and 300 lb concentrated load

  • Hinged or Fixed Design

  • Slam Lock w/ Key for Hinged Covers

  • Gaskets for a Substantially Air Tight Cover

  • Lifting Handles


Hartford, CT WPCF Wet Weather Expansion Project

Serving the Water and Wastewater Industry for over 35 years!

Benefits of Aluminum

Ease of maintenance

Corrosive resistance

Aesthetically pleasing

High strength-to-weight ratio



View Our Aluminum Flat Panel Covers Brochure

Aluminum Cover Brochure 08.26.2019.JPG

For more information regarding our design & engineering capabilities, click here.

Product Specifications:

Aluminum Covers Specs (PDF)

Aluminum Covers Specs (Word)


Engineering Load Table:

Plank Covers