Replacement hot tub covers

Replacement hot tub covers — DELUXE as standard, Proline ULTRA as premium

Two covers, both normally held in our UK warehouse and both with a 2-year pro-rata warranty. The DELUXE 5″→3″ tapered cover is our standard choice: marine-grade vinyl in grey or brown, in every 2″ size from 78″ to 92″ square plus 78″ and 80″ round — the same spec we fit to our own acrylic spas. The Proline ULTRA is the premium option: black Oxford 600D fabric that is water-resistant and UV-treated, about 30% lighter to lift than an equivalent vinyl cover, with foam tapering from 12cm to 7cm. In-stock covers reach your driveway in around 10 working days, often sooner. They fit hard-shell hot tubs from Canadian Spa, Jacuzzi, Hotspring, Arctic Spas and most other major brands. Not compatible with inflatable spas.

Choose your cover

Choose your cover

DELUXE or Proline ULTRA

Both come in every standard square size from 198 to 233cm (78″–92″). Pick your cover here, then choose your size on the next page.

Our standard cover

DELUXE 5″→3″ tapered

From £399.00

  • Marine-grade vinyl in grey or brown
  • 5″ thick at the centre fold, 3″ at the edge
  • R 18.5 foam core sealed in a 6mil vapour barrier
  • 2-year pro-rata warranty
Choose your size

Premium

Proline ULTRA

From £599.00

  • Black Oxford 600D fabric, about 30% lighter to lift
  • Foam tapers from 12cm at the fold to 7cm at the edge
  • 20-gauge steel reinforcement
  • 2-year pro-rata warranty
Choose your size

Got a Canadian Spa model, a round hot tub or a swim spa? Its exact-fit cover is in the full list below. See every cover

Two covers, every standard size, normally in UK stock

If your old cover is sagging, waterlogged or letting your bills creep up — here's how ours are built differently, and how to pick the right one.

  • DELUXE 5″→3″ — our standard cover, as fitted to our own spas

    Marine-grade vinyl in grey or brown over a 1.5 LB Type II expanded polystyrene core (R 18.5), sealed in a 6mil vapour barrier. It is 5″ thick at the centre fold and tapers to 3″ at the edge, so rain runs off instead of pooling. The same spec we ship as standard on our acrylic hot tubs, with a 2-year pro-rata warranty.

  • Proline ULTRA — premium black Oxford fabric, about 30% lighter

    The vinyl skin is replaced by black Oxford 600D fabric, treated for UV and weather resistance and made to shed water rather than hold it. About 30% lighter to lift than an equivalent vinyl cover, with foam tapering from 12cm at the centre fold to 7cm at the edge, a 1.5 lb virgin EPS core, 20-gauge C-profile steel reinforcement, a thermal seal and a reinforced skirt. 2-year pro-rata warranty.

  • Every standard size, normally in UK stock

    DELUXE comes in grey or brown in every 2″ size from 78″ to 92″ square (198–233cm), plus 78″ and 80″ round and a 60″ × 80″ rectangle. Proline ULTRA comes in black, 198–233cm square and 198cm or 203cm round. Both are held in our UK warehouse, and each product page shows live stock by size. We advise 10 working days from order to driveway because of the bulk and weight, but most in-stock covers go out faster.

  • Fits most hard-shell spa brands — go one size up from your spa

    Our covers fit hard-shell hot tubs from Canadian Spa, Jacuzzi, Hotspring, Arctic Spas, Aegean, Clearwater and most other brands. Not compatible with inflatable spas. Sizing rule: choose the next size up from your measurement. A cover the same size as your spa, or smaller, sits on the skirting flaps and breaks the insulation seal. Check the corner radius and fold direction too.

38 products

Replacement Hot Tub Covers: UK Buying Guide

This collection is part of the Canadian Spa Company UK range of hot tubs, swim spas, saunas and spa essentials. Compare options by fit for your space, running costs, insulation, warranty and ongoing maintenance requirements to make a better long-term choice.

If you need help choosing the right model or part, our support team can guide you on compatibility, delivery and aftercare.

About Replacement Hot Tub Covers

Choose a replacement hot tub cover by its documented fit and specification. Check the spa's cover seating area, length, width, corner radius, skirt length, hinge direction and strap positions before ordering. A model name or the size of an old, distorted cover is not enough to confirm compatibility.

Two covers come in standard sizes. DELUXE is our standard 5″→3″ tapered cover in grey or brown marine-grade vinyl. Proline ULTRA is the premium option in black Oxford 600D fabric, about 30% lighter than an equivalent vinyl cover. Compare thickness, material, warranty and sizes on each product listing, and check the selected size and colour for the current price, availability and delivery information.

Know the type you need? See our original replacement covers for Canadian Spa models, in-stock insulating covers and rolling covers.

Signs that a cover needs attention include increased weight, damaged seams, a torn hinge, sagging, gaps around the edge or damaged straps. Cover lifters and weather guards are also available; check their compatibility and required clearance.

Use our replacement hot tub cover buying guide for measuring checks. If any dimension or compatibility detail is unclear, send measurements and photos to our team before buying.

Add-ons

Add to your cover

A Spa Jacket goes over the whole spa, like a barbecue cover, to keep it clean under trees or when it isn't used for a while. A cover lifter makes the cover easier to open and close.

Canadian Spa hot tub with an insulated cover fitted

Why replace

Six reasons your old cover is worth replacing

If you bought your hot tub more than three or four winters ago, the cover is almost certainly the weakest link in your insulation. Here's what a fresh replacement gives you.

  • Cut your monthly running cost

    A waterlogged or sagging cover can double your spa's heating bill. A fresh tapered cover with intact insulation pays for itself fast — particularly in winter, when the temperature delta is biggest.

  • Tapered, not flat — rainwater runs off

    Both covers taper, so rainwater drains off rather than pooling: DELUXE is 5″ thick at the centre fold and 3″ at the outer edge, Proline ULTRA 12cm and 7cm. Pooled water on a flat cover is the #1 cause of foam waterlogging and premature cover failure.

  • Sealed vapour barrier

    Each foam panel is sealed inside a poly vapour barrier — 6mil on DELUXE, 3mil on Proline ULTRA. That stops moisture creeping into the foam, which is what makes old covers heavy, saggy and useless within 18 months.

  • Locking straps for child safety

    Our square covers have eight locking straps and our round covers four, to keep the cover secured to the spa body (Proline ULTRA straps lock with a key). DELUXE covers include both halves of each buckle, so you can fit them in the right position on your spa — essential if you have children, dogs or a windy garden.

  • Built to live outdoors in British weather

    DELUXE: UV-stable marine-grade vinyl on top and mildew-inhibiting vinyl underneath. Proline ULTRA: black Oxford 600D fabric, treated for UV and weather resistance and made not to hold water. Both are designed to stay outside all year.

  • Easy to open, with or without a lifter

    DELUXE covers work with standard top-mount and bottom-mount cover lifters, ours included, and have reinforced triple-folded vinyl handles for lifting by hand (six on square covers, two on round). Proline ULTRA is about 30% lighter than an equivalent vinyl cover, with six reinforced handles on square sizes and two on round.

Browse covers

Common questions

Replacement cover FAQ

DELUXE or Proline ULTRA — which should I buy?

DELUXE is our standard replacement cover. It is the 5″→3″ tapered marine-vinyl cover we fit to our own acrylic spas, in grey or brown.

Proline ULTRA is the premium option. It uses black Oxford 600D fabric instead of vinyl: water-resistant, UV-treated and about 30% lighter to lift than an equivalent vinyl cover, with foam tapering from 12cm to 7cm and 20-gauge steel reinforcement. Choose it if you want a black fabric finish or a lighter cover to lift by hand.

Both carry the same 2-year pro-rata warranty. Our old PROLINE 4″/3″ cover has been discontinued; Proline ULTRA is a different, premium cover.

How do I measure my hot tub cover?

Easiest method: measure across the centre fold of your existing cover, edge to edge. Do this in both directions for a square cover.

If your existing cover has gone misshapen or you're starting fresh, measure the spa itself — furthest point to furthest point, edge to edge, in both directions. Then pick a cover size that's bigger than that measurement (see next question).

What if my measurement falls between two of your sizes?

Go up to the next size. A cover slightly bigger than your spa sits on the rim and seals; a small overhang is normal. A cover the same size as your spa, or smaller, sits on the skirting flaps rather than the rim, which breaks the insulation seal and lets heat escape from the sides. If you're unsure, check the corner radius on the product page or send us your measurements before ordering.

Will this fit my Jacuzzi / Hotspring / Arctic / other brand?

Yes — our replacement covers fit any major hard-shell spa brand, including Jacuzzi, Hotspring, Arctic Spas, Aegean, Clearwater and most others. The cover doesn't need to match the brand of the spa — it just needs to be the right shape (square with rounded corners, or round) and slightly bigger than the spa itself. Measure across the existing cover or across the spa, then pick the next size up from our range. Not compatible with inflatable spas — those need a fitted inflatable lid, not a rigid foam cover.

What about corner radius — do you offer different ones?

We make our square covers with a 4" / 10cm corner radius, which is cross-compatible with any larger corner radius without any loss of insulation. A larger corner radius is just a more swooping curve at the corner — the cover still seals correctly. If your spa has a corner radius of 4" or larger, our cover will fit.

How long does delivery take?

We advise 10 working days from order to your driveway because of the bulk and weight of the cover, but in practice most orders go out faster than that. Our covers are held in UK stock, so in-stock sizes aren't waiting on overseas shipping — each product page shows live stock by size.

Delivery is included as kerb-side. Some Highland and Island postcodes carry a surcharge — please call or email for a quote in those areas.

How long does a hot tub cover last?

A well-looked-after cover should last 4-7 years in UK conditions. Signs it's time to replace: the cover feels heavy when you lift it (the foam has waterlogged), the centre is sagging or pooling water, the vinyl is splitting or fading, your monthly running cost has crept up, or the locking straps no longer hold properly. A wash with mild soap and water once a year, plus brushing off snow and leaves, dramatically extends cover life.

What's the warranty?

DELUXE and Proline ULTRA covers carry a 2-year pro-rata warranty against faults in materials and workmanship. A fault in the first 3 months is covered in full. After that, our share of the cost falls steadily as the cover ages, from 95% in month 4 to 15% in month 21, and it is 10% in months 22–24. That reflects normal wear and tear; delivery both ways is paid by the customer. Original PROLINE (classic vinyl) covers, now discontinued, have a 12-month warranty. Full terms are on our cover warranty page.

UK buying guide

Replacement Hot Tub Covers UK — buying guide

Replacing a hot tub cover is one of the highest-return upgrades you can make to an older spa. The cover is the single biggest factor in how much heat your spa loses overnight — once the foam waterlogs or the seal goes, your running cost climbs. We stock two covers in our UK warehouse: the DELUXE in every 2″ size from 78″ to 92″ in grey or brown, and the premium Proline ULTRA in black from 198 to 233cm — so most owners can get a like-for-like replacement on their driveway in around 10 working days.

DELUXE or Proline ULTRA — picking your cover

  • DELUXE 5″→3″ tapered — our standard cover and the same one we fit to our own acrylic spas. Marine-grade vinyl in grey or brown, R 18.5 foam core, 6mil vapour barrier, 2-year pro-rata warranty.
  • Proline ULTRA — the premium option in black Oxford 600D fabric. Water-resistant and UV-treated, about 30% lighter to lift than an equivalent vinyl cover, 12cm→7cm tapered foam, steel-reinforced, 2-year pro-rata warranty.

How to measure your hot tub cover

  • Measure across the centre fold of your existing cover, edge to edge, in both directions
  • If the cover is misshapen, measure the spa itself — furthest point to furthest point, edge to edge
  • Pick the next size up from your measurement — not the same or smaller — and check the corner radius

Why we recommend one size up

A cover slightly bigger than your spa sits on the rim and seals the insulation; a small overhang is normal. A cover the same size as the spa, or smaller, sits on the skirting flaps rather than the rim — that breaks the insulation seal and lets heat escape from all four sides.

Brand compatibility

Our replacement covers fit Canadian Spa, Jacuzzi, Hotspring, Arctic Spas, Aegean, Clearwater and most other popular hard-shell spa brands. The cover doesn't need to match the brand of the spa. Not compatible with inflatable spas — those use a fitted inflatable lid rather than a rigid foam cover.

What's in a DELUXE cover

  • Marine-grade vinyl top, mildew-inhibiting vinyl bottom
  • 1.5 LB Type II expanded polystyrene foam core (R 18.5)
  • 6mil poly vapour barrier sealed around the foam
  • Full-length steam seal inside the centre fold
  • 5" skirt to trap escaping heat at the sides
  • Aluminium reinforcement channel down the centre
  • 8 locking straps on square covers (4 on round) for child safety
  • 6 reinforced triple-folded vinyl handles on square covers (2 on round)
  • Compatible with standard top-mount and bottom-mount cover lifters

What's in a Proline ULTRA cover

  • Black Oxford 600D fabric outer, treated for UV and weather resistance
  • Foam tapered from 12cm at the centre fold to 7cm at the edge
  • 1.5 lb density virgin expanded polystyrene (EPS) foam core
  • 20-gauge C-profile steel reinforcement beams
  • 3mil vapour barrier around the foam
  • Thermal seal and reinforced skirt
  • Square sizes: 6 reinforced handles and 8 lockable safety straps with key; round sizes: 2 handles and 4 straps

Frequently asked

When should I replace my hot tub cover?

Replace when the cover feels heavy (waterlogged foam), sags in the middle, splits or fades, no longer seals properly at the edges, or when your running cost has crept up. Most covers last 4-7 years in UK conditions with light annual cleaning.

What sizes of replacement hot tub cover do you stock UK?

DELUXE covers come in every 2″ size from 78″ × 78″ (198cm) to 92″ × 92″ (233cm) with rounded corners, plus 78″ and 80″ round and a 60″ × 80″ rectangle, in grey or brown. Proline ULTRA covers come in black in the same square range (198–233cm) and in 198cm or 203cm round. Both are held in our UK warehouse, and each product page shows live stock by size. If your measurement falls between two sizes, choose the larger.

How thick should a replacement hot tub cover be?

Avoid flat 3″ covers — they hold rainwater and waterlog quickly. Our DELUXE is 5″→3″ tapered: 5″ thick at the centre fold, tapering to 3″ at the outer edge — the same spec we fit to our own acrylic spas. Proline ULTRA tapers from 12cm to 7cm (about 4.7″ to 2.8″). The taper sheds rainwater; the extra thickness holds the heat in.

What is Oxford 600D fabric?

Oxford is a tough woven outdoor fabric, and 600D (600 denier) describes how heavy the yarn is. On the Proline ULTRA it replaces the usual vinyl skin: it is treated for UV and weather resistance, sheds water rather than holding it, and makes the cover about 30% lighter than an equivalent vinyl cover.

What happened to the PROLINE 4″/3″ cover?

It has been discontinued. DELUXE is now our standard replacement cover, and Proline ULTRA, in black Oxford fabric, is the premium option. If you bought an original PROLINE (classic vinyl) cover, its 12-month warranty still applies from the date of purchase.

Will a Canadian Spa cover fit my Jacuzzi, Hotspring or Arctic hot tub?

Yes. Our covers fit any brand of hard-shell square (rounded-corner) or round hot tub at the right size. Measure across the existing cover, or measure the spa itself edge to edge, then pick the next size up from our range. The cover needs to be slightly bigger than the spa so it seals on the rim. Not compatible with inflatable spas — those need a fitted inflatable lid rather than a rigid foam cover.

How quickly can you deliver a replacement cover in the UK?

We advise 10 working days from order, but most go out faster — our covers are held in UK stock, so in-stock sizes are not waiting on overseas freight. Delivery is included as kerb-side to UK mainland; Highland and Island postcodes may carry a surcharge.