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Planning Service Access: Front Aprons, Access Panels, and Why You Must Not Insulate Around the Tub

Updated September 2026

▶Glossary8
  1. Where the Access Panels Are
  2. What Is Behind the Panels
  3. Alcove Installations and Wall Access Panels
  4. Keep the Apron Clear of Tile and Flooring
  5. Do Not Insulate Around the Tub
  6. Where to Place the Outlets
  7. Related Guides
  8. Common Questions

Planning service access for a walk-in tub is simple: every Ella walk-in tub is built so the pumps, heater, control boxes, and plumbing can be reached through the removable front apron access panels without pulling the tub out. The front apron typically has two access panels, and the end panel and extension panel come off as well. Whatever you build around the tub must keep that access open. Do not tile in front of the apron, plan a wall access panel when the ends will be enclosed in an alcove, place the outlets where the cords reach, and never pack insulation around the equipment.

Diagram of an Ella walk-in tub with the two removable front apron access panels highlighted
The two removable access panels on the front apron give service access to the pumps, heater, and plumbing.

Where the Access Panels Are

Service Panel Access on Walk In Bathtubs - Organized Piping

The video above tours the service panels and the organized piping behind them. On most models the front apron has two easily removable panels for service access to the plumbing and other components, and the method of attaching the apron, with clips, screws, velcro tape, or even magnets, varies by model. A few model notes: Watch: Ella's Bubbles: Service Panel Access on Walk In Bathtubs - Organized Piping for Easy Maintenance on its own page.

  • Standard and Zen platform: two panels, held with screws under screw caps; the side panel attaches with magnets against tabs inside the panel. The front legs on this platform are screwed into the subfloor, so plan the floor finish accordingly.
  • Ultra: four magnetic access panels, all removed before the tub is carried.
  • Ultimate and Zen60: two access panels on the side the door is on, so a 60 inch tub in an alcove can still be serviced from the front.
  • Serial number label: on many models it sits behind the magnetic access panel next to the door, which simply pulls away from the frame. Our model and serial number guide shows where to look on each family.
  • LayDown: the motor is on the backrest side and the faucet is on the drain side; the side panels are removable, and the front apron is removable as long as nothing is tiled in front of it.

What Is Behind the Panels

Inside the Build: Under-the-Deck Piping
Chapters in this video
  1. 0:00 Behind the Bathtub Tour A technician provides a detailed tour of the neat and tidy piping behind an Ella's Bubbles walk-in tub.
  2. 0:27 Grounding Straps and Lines The technician highlights the consistent grounding straps and the numerous lines within the bathtub's system.
  3. 0:39 Auto Purge System Benefits The auto purge system is explained, detailing how it cleans lines to prevent mold, mildew, and bacteria.
  4. 1:02 Clean and Sanitary Lines The technician assures customers that the lines will be completely clean and sanitary for every use.

This dealer tour behind the tub shows why the panels matter: the air and water lines are bundled neatly, the glue joints are consistent, and grounding straps from the manufacturer bond every component. It also shows how many lines the auto purge system clears after each bath to keep them dry and clean. When something does need attention years later, all of this is reachable through the front, which is exactly what you want to preserve. Watch: Inside the Build: Under-the-Deck Piping of Our Walk-In Tubs | Voted Safest 2020 with chapters and a full transcript.

Alcove Installations and Wall Access Panels

Placing the tub snugly into a three-wall opening limits access for maintenance, since both ends of the tub are enclosed. The removable front apron still gives access to the equipment, and on many models the plumbing can be run under the tub from either side, so an end that is against a wall is not a problem for the drain (see drain configurations and the house drain). Even so, talk to your installer about installing a wall access panel behind the tub's plumbing end for easy servicing, to avoid future costs for drywall removal, repair, and painting. The installer or owner is responsible for providing the service access required by code, at their own cost, and because the warranty covers parts only, any future labor to reach the equipment is at the owner's expense. Design access panels into your remodel and you will never think about it again.

Keep the Apron Clear of Tile and Flooring

The front apron and its access panels stay removable only if nothing is built in front of them. Keep tile, trim, and flooring clear of the apron line, and run your wall finish over the tile flange and deck instead, as described in our tile flange and wall finishing guide. Extension panels and end panels are removable too, so treat them the same way; our extension panel guide explains which panels your model includes.

Do Not Insulate Around the Tub

Please do not pack insulation around the tub equipment. The frame and components are engineered for ventilation, and blocking that airflow can overheat the pumps and electronics. Overheating damage caused by insulation is treated as misuse and is not covered. If sound or warmth is the concern, talk to your installer about insulating the surrounding walls rather than the compartment.

Where to Place the Outlets

The dedicated GFCI outlets should be located where the power cords from the pumps and heating element can reach them without extension cords, which must never be used; our team suggests under the seat area inside the tub compartment. Your electrician can confirm cord reach against the component diagram for your package before the tub is set, and our electrical requirements article lists the circuit count per model. Accessible shut-off valves for the supply lines should also be placed close to the tub for easy maintenance.

Common Questions

Where are the access panels on my tub?
Ella walk-in tubs typically have two removable access panels on the front apron, plus removable end and extension panels, to reach the pumps, heater, control boxes, and plumbing. The Ultra model features four magnetic access panels, while the Ultimate and Zen60 models have two access panels located on the side where the door is. On Standard and Zen platform models, the two front panels are held with screws under screw caps, and the side panel attaches with magnets against tabs inside the panel.
Do I need a wall access panel in an alcove?
A wall access panel is strongly recommended when installing a walk-in tub in a three-wall alcove, even though the front apron provides access to the equipment. This additional panel, placed behind the tub's plumbing end, can save future costs for drywall removal, repair, and painting if maintenance is needed for connections behind the tub. The installer or owner is responsible for providing any code-required service access at their own cost, as the warranty covers parts only, and future labor to reach equipment is at the owner's expense.
How is the apron attached on my model?
The method of attaching the front apron varies by model, using clips, screws, velcro tape, or even magnets. On Standard and Zen platform models, the front panels are held with screws under screw caps, and the side panel attaches with magnets. For models with magnetic access panels, such as the Ultra, you can simply pull gently on the panel to remove it. If you are unsure about your specific model, open a support ticket with your model name, and the technical support team will provide the steps.
Can I tile in front of the front apron?
Please do not tile in front of the front apron or its access panels, as this will trap them and require tile removal for future service. To maintain service access, keep tile, trim, and flooring clear of the apron line. Instead, run your wall finish over the tile flange and deck, as described in the tile flange and wall finishing guide. Removable extension panels and end panels should also be treated the same way to ensure they remain accessible.
Can I insulate around the tub for sound or warmth?
No, you must not pack insulation around the tub equipment, as this blocks the engineered ventilation and can cause the pumps and electronics to overheat. Overheating damage resulting from insulation is considered misuse and is not covered under warranty. If your concern is sound or warmth, discuss insulating the surrounding walls with your installer instead of the tub compartment.
Where should the outlets be placed?
Dedicated GFCI outlets should be placed where the power cords from the pumps and heating element can reach them without the use of extension cords, which are never to be used. The Ella's Bubbles team suggests locating these outlets under the seat area inside the tub compartment. Your electrician can confirm cord reach against the component diagram for your specific package before the tub is set, and our electrical requirements article lists the circuit count per model. Accessible shut-off valves for the supply lines should also be placed close to the tub for easy maintenance.
Who pays if the equipment needs service years from now?
If equipment needs service years from now, the Ella's Bubbles warranty covers replacement parts. However, any labor required to reach and replace those parts is the owner's responsibility. Planning for good service access, such as keeping the front apron clear of tile and installing a wall access panel in an alcove, helps keep future labor costs small.
Can a tub in a three-wall alcove still be serviced?
Yes. The front apron panels reach the pumps and controls on every model, and the Ultimate and Zen60 are designed with their panels on the door side for exactly this reason. Add a wall access panel at the plumbing end for the connections behind the tub.
Do we need access to the end of the tub, or is everything reachable from the long side?
Everything is on the long side. The large magnetic panel by the seat covers the pumps, heater and control box, and a smaller panel at the faucet end reaches the supply lines and faucet valves. The ends can be closed in, and an optional extra access panel for the short end exists but is rarely needed.
How does the front apron stay on, screws or plastic clips?
Both: screws at several points plus plastic clips, with the front access panel itself held by magnets and pulled off by hand. Reinstall the apron with its screws; broken clips are replaced if you send a photo. The apron is not airtight, so heat escapes and nothing needs to be packed around the pumps for sound.

Have a question that depends on your exact model or configuration? Open a ticket at ellasbubbles.com/support or call (800) 480-6850 and our technical support team will be glad to help you and your installer.

About this guide. Answers in the Ella’s Bubbles Support Center are compiled from real conversations with tub owners, our technicians’ notes and the product documentation, then reviewed by our team. Tub models and options have evolved over the years, so a detail here may differ slightly from your exact tub. If something looks different on yours, send us your serial number and a specialist will confirm it for your model.

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