What payment methods do you accept?

We accept credit card payments from Visa, Mastercard and American Express. Credit card payments are securely processed through Stripe. Apple users on Safari may also quickly check out using Apple Pay.

Is climate an issue?

YES. Do you live in a snow belt or perhaps in a rainy zone? Climate can make a difference when choosing the right hot tub cover. Generally speaking the colder the climate, the more protection the hot tub will need. The denser the foam, and thicker the cover, the better protection against the elements.

For example, if you live is a part of Canada that gets lots of snow, we would recommend The 4-Season with a 2lb. Foam Density upgrade. The 4-Season is our thickest cover with a 6″ to 4″ foam taper. The 2lb. Foam Density upgrade (also know as a walk-on option) will allow for extra weight.

What do I need to look for when buying a cover?

Buying a replacement hot tub cover should be functional, properly fitted, properly constructed for best insulation, easy to use, and value priced.

It should also come in an assortment of colours and material choices.

Any maintenance tips?

Sometimes, it’s the simple things:

  1. Tilt or remove your cover weekly to drain any absorbs moisture from the cover.
  2. Depending on the climate, using a cover-cap acts like a shower-cap to your cover for added protection.
  3. Remove any snow from building up on the cover to prevent sagging or possible water saturation.

Is mildew a potential problem?

Don’t panic !

It can be a common issue. The key to preventing mildew is keeping the chemicals properly balanced in the hot tub water.

If mildew does occur, mix warm water and mild dishwashing soap and with a soft brush, scrub the area to remove any mold or mildew. 

If the mildew is on the inside of the vinyl cover, apply the same cleaning method but make sure to place the vinyl in the sun to dry. If the inside foam core news attention, clean and dry in the shade. Make sure everything is dry before reassembling your cover.

What do I do if I get a puddle on the hot tub cover?

A puddle means the foam core is damaged or broken. This is important to know because it could mean your cover is taking on moisture. If you get a puddle on your spa cover, unzip the vinyl covering and turn over the foam core. That will probably take care of it. If not, check to see if your spa is level.

If there is a puddle on top of your cover, unzip the vinyl cover and remove the inner foam core. Simply turn it over and re-insert the foam core. If the core is actually broken, it may be time for a new foam core or a complete new cover.

How long should my hot tub cover last?

There are many factors when determining the life-span of your hot tub. It depends on sunlight exposure, level of care, weather conditions, and water chemistry of the hot tub. 

Generally speaking, proper and routine maintenance for your cover can make the difference between your cover lasting 3-4 years instead of 5-7 years. 

Should I inspect the core?

Remove the inner foam cores and flip them over at least once a year. The core is vacuum sealed but flipping the core can prevent sagging and reduce the absorption factor of water vapour.

How should I clean and maintain my cover?

Cleaning and maintaining our hot tub covers is very straight forward. Keep it clean and inspecting it often can go a long way.

Keep the cover clean. The vinyl needs to stay clean and conditioned. Use a mild soap and water solution to clean the vinyl of the cover at least twice per month.

Clean off any chemical film from the underside (liner) of the cover. This film or residue can break down the material causing water vapours to penetrate the core.

Unzip and clean the inside the zipper areas. This area can be a zone for mold and mildew to accumulate. Use a mild cleaning solution to clean this zipper area.

Clean and moisturize your hot tub cover ever 2-3 months. Once per season is a good idea. Do not use petroleum based products or cleaners with silicone as they may dehydrate the vinyl and degrade it quicker that usual. 

Will maintaining chemical balance help my hot tub cover?

YES ! Proper and routine maintenance for your hot tub chemicals can make the difference between your cover lasting 3-4 years instead of 5-7 years. 


It’s very important to maintain your hot tub chemistry. Vapours from the water will be less harmful to your cover if they are balanced.

Remove the cover after treating your hot tub water to avoid corrosive vapours deteriorating the underside or liner of your cover.

A thermal blanket can reduce harmful chemical vapours from seeping into the cover and drastically cut down on evaporation.

How do I clean the underside or liner to the cover?

A sponge and soft liquid wash and warm water. Make sure no soap gets into the actual hot tub. Flip the cover to once side to clean side A, then flip it over to clean the other side. Most hot tub covers are very well made. 

It’s always a good idea to remove your cover when adding chemicals. Over sanitizing the water can actually harm the materials of the cover. Avoid using petroleum based cleaners that can be  harmful to the vinyl surface.

The inside zipper and fold should be cleaned as needed to prevent any mold or mildew from accumulating.

How often should I clean my hot tub cover?

Cleaning your hot tub is a really good idea for several reasons.

It does depend however on the amount of use, but usually once a month is the recommended cleaning.

Vinyl can dry out and show signs of cracking and wear & tear. Treating the vinyl with cleaner with UV protection will help protect it from the UV & precipitation. The vinyl cover should be cleaned with a mild soap solution and not a detergent. Petroleum based products tend to deteriorate the vinyl and do more harm than good.

If possible, avoid direct sun light.

What material is the core made from?

Mountain Covers uses environmentally friendly material called CFC (Chlorofluorocarbon)-free foam. The manufacturing process uses steam rather than ozone depleting freon agents thus protecting the ozone layer. The foam has minimal water absorption characteristics.

Marine grade top vinyl with U.V and mildew inhibitors

Reinforced handles, aluminium channel down the centre of each cover for added strength.

What are typical hot tub cover R-Values?

R-Value is mainly determined by the thickness and density of the core material. Other factors that contribute to the R-Value are the vinyl used and the poly wrap material that seals the foam core.

The core is made up of a Chlorofluorocarbon (CFC)-free foam that is moisture resistant, chemical resistant, and carries an insulation and compressive strength.

Examples of R-Value are:

1lb density tapered by 4” to 2” has an R-Value of 10.74. 2lb density tapered by 4” to 2” has an R-Value of 13.05

The vinyl and sealed core can typically add a R-2 value bringing the total R-Value of a 2 lb foam density to R-15

Don’t forget, a waterlogged hot tub cover can reduce the R-Value by up to 75%

What is R-Value and why is it important on your cover?

R-Value or thermal resistance indicates the resistance to heat flow. The higher the R-value, the greater the capacity for your hot tub cover to insulate from heat loss.

Also, the greater the r-value, the more energy efficient.

Why is the cover tapered?

A hot tub cover is protection to your hot tub or spa. A tapered cover allows rain, snow and debris to drain off the cover.

Depending on the overall dimensions of the hot tub cover, tapers range from 3”-2”, 4”-3”, 5”-4”, and 6”-4” for more harsh climates.

Is heat sealing the inner wrapping important?

One of the most common cover fails is when the foam core absorbs too much moisture. It caused the cover to become much heavier plus reduces the cover’s ability to insulate. The inner foam is wrapped in heat-sealed plastic (usually 4mm-10mm) to protect against moisture absorption. It’s very important that this foam core is sealed properly.

What’s a lifter and why do I need it?

A lifter is a very useful accessory (necessity) that will preserve your cover from wear and tear. The lifter makes it easier to lift and fold out of the way for easy access and storage while in your hot tub.

Why does my hot tub cover get heavy?

When the vapour barrier fails, the inner foam begins to absorb more and more moisture. This absorption is a perfect breeding ground for bacteria and mildew. Not only is it a health hazard consideration, but the waterlogged hot tub cover greatly affects the other components of the cover and the lifter. Waterlogged covers begin to lose their ability to insulate and become less energy efficient. 

A waterlogged hot tub cover can lose up to 75% of it’s original R-Value or insulating capacity. Ouch ! 

Waterlogged or heavy covers also put stress on the lifters of your hot tub cover. It’s a waterlogged hot tub cover that should be replaced sooner that later.

What can I expect from the ordering process?

Start by placing your order online at mountaincovers.com. You will receive an email confirmation of your order once the order is placed.

You will then receive an email notification that your product is ready for shipment along with a tracking number. Once you receive your order, we strongly recommend that you or someone you trust be at the delivery address to sign for the delivery.

Contact Mountain Covers (888)-970-0532 at any time during the ordering process so we may serve you better.

How do I measure the skirt length for my replacement hot tub cover?

Measuring Hot Tub Cover Skirt Length

The Skirt Length is the length of the flap that extends below the foam on your spa cover. The purpose of this flap is to protect the acrylic lip of your spa from weather damage.  It also helps to prevent wind debris from getting under your cover. As a rule of thumb, the skirt should by 0.5 inches longer than the acrylic rim of your spa to protect it. Do not include the foam in your measurement.

Our covers come in skirt lengths ranging from 0” (no skirt) to 7”.  Measure from the bottom of the foam (or rim of your spa) to the bottom of the flap. Round up to the nearest half inch.

What should I consider when selecting my spa fold?

The fold or hinge on a spa cover determines what side you will open the spa cover from.  Even if your spa is circle or square, the fold direction can matter.  You will want to consider things like where deck railings or buildings are in relation to the spa, where the control panel for your spa is located, and if you will be using a cover lifter.

All of these considerations come down to making sure you can easily access opening and closing your cover.  We recommend standing in front of your spa where you want it to open. Think of the fold like a finish line right in front of you.

When should I replace my hot tub cover?

There are several signs when your hot tub cover may need to be replaced. The most obvious one is weight. If you are finding your cover is difficult to lift, it has most-likely become water logged and it is time to replace it. Water-logging means that moisture has become trapped inside the cover. This can also cause an odour, which can be an indication of mold or bacteria growth inside the cover. If you notice any odour, the cover should be replaced right away.

Also watch for any type of material damage or tears. If the material is beginning to deteriorate or show signs of wear, this is how water will get inside the cover and it should be replaced.

Should I measure my old cover or the hot tub itself?

If you currently have a cover and are happy with the way it fits, you can measure your old cover for size. If the cover has warped or changed size in any way since you purchased it, it is recommended to measure the spa as this will provide a more accurate measurement.