Custom Hot Tub Thermal Covers

Custom-Fit Hot Tub Covers - Made to Measure

Can your current hot tub cover keep the heat and debris out when it matters most? If it’s starting to sag, soak up water, or crack around the edges, you’re literally throwing energy (and pounds) down the drain, all while battling soggy, grimy panels.

Our Pure-Spa made-to-measure Hot Tub covers solves that for good: With a tapered core, steel reinforcing and heat-sealed vapour barrier to lock in warmth and keep moisture out, delivering lower bills, cleaner water, and unmatched durability, no matter how wild the UK weather.

Crafted from premium outdoor-grade vinyl treated with mildew and UV inhibitors, these covers are built to stay looking great and performing flawlessly no matter the season.

Why Fit Matters

A hot tub cover that gaps or sags doesn’t just look shabby, it lets precious heat escape and invites debris and moisture under the lid. Here’s why getting the fit spot-on makes all the difference.

Secure Fit, Secure Heat – Even a small opening is a thermal shortcut. A custom fit ensures you’re not heating the garden
Optimised Insulation – The tapered foam core puts thick insulation at the centre of the tub, where heat pressure is highest, tapering toward the edges to aid in water runoff.
Dry Under the Lid – A factory head-sealed vapour barrier stops moisture ingress, so you avoid soaked foam panels, mouldy skirt edges, and the maintenance headache that comes with them.
Fits Most Family Tubs – Bespoke sizing up to 2.5m x 2.44m, covering the vast majority of square or rectangular spas with custom corner radius options to match your spa’s rounded edges

Built for UK Weather

Your hot tub sees it all: driving rain, biting frost, and the occasional scorching sun. The Pure-Spa cover is engineered to shrug off Britain’s toughest elements.

Marine-Grade Vinyl – UV-resistant topcoat and weatherproof underside prevents cracking or fading.
Weathershield Fabric Options also available –3x Stronger, 50% lighter.
Steel Reinforced U-Channel – We install a 'non-corrosive steel 'C' channel on all of our spa covers. This provides strong support across the centre of the spa cover, giving extra support in areas that experience extreme weather
UV-Treated Polyester Stitching – Lon-lasting seams won’t fray under intense sunlight.
Outdoor-Grade Vinyl – Treated with mildew and UV inhibitors for fade-free durability, season after season.
Colour Options – Choose from Brown, Grey, Black or Tan, all formulated to resist discolouration and blend seamlessly into any garden.

How to Order your Hot Tub Cover– 5 Simple Steps

Download the Measuring Guide
Access our downloadable measurement guide showing you how to measure the essentials and keep it handy.
Take your Measurements (mm)
For each dimension, we recommend taking the measurements at three points to ensure precision. Round up to the nearest cm if in doubt.
Fill in the Details
On the order form (.PDF, .DOC), or directly on the product page, choose your corner radius (R), skirt length (S), strap length (C), and pick your colour from Brown, Grey, Black, or Tan. Other colour options can be found by talking to a member of our sales team.
Submit Your Order
Double check your measurements and options. Then, either attach and email your completed form to our team or fill out the options directly on the product listing itself and pay through our secure checkout page.
Relax
Your custom cover ships within 3-5 weeks, ready to install straight on your hot tub. No hidden fees, no compromise on quality.

Care for your Hot Tub Cover & maximise the lifespan

Keep your cover in top shape with a few simple steps:

Clean Quarterly – Rinse with mild detergent or use Pure-Spa Vinyl Cleaner & Preserver to remove grime and chemicals.
Nourish & Protect – Every two months, apply a quality vinyl protectant (such as 303 Protectant) to maintain flexibility. Avoid silicone-based products, which can leach moisture from the vinyl and cause premature cracking.
Remove Residue – Wipe chemical build-up from the underside after each spa session to prevent material breakdown.
Use a Cover Lifter – Prevent dragging and reduce stress on straps.
Rotate & Flip – Rotate end-to-end every six months; remove and flip the EPS cores annually for balanced wear.
Balance Water Chemistry – Maintain proper chemistry (chlorine below 5 ppm) to protect vinyl, foam, and vapour barrier.
Use a Floating Blanket – Add a Spa Cover Protector & Heat Saver floating blanket to shield the cover from moisture and vapour.
Cover Clips, Storm Straps & Caps – Essential for winter protection
Spa Chemicals & Test Strips – Keep water balanced with Pure-Spa formulas
Spa Cover Protector & Heat Saver – A floating blanket for extra insulation and moisture control

Don’t forget:

Cover Clips, Storm Straps & Caps – Essential for winter protection
Spa Chemicals & Test Strips – Keep water balanced with Pure-Spa formulas
Spa Cover Protector & Heat Saver – A floating blanket for extra insulation and moisture control

Ready to upgrade?

Download the measuring guide, order form, or visit the product page to enter your dimensions now. Questions? Call us on 01326 371 488, email us, or shoot us a message on WhatsApp. Our team is here to clear any confusion and help ensure a perfect fit every time.