Seamaster 20 Boat Covers
Bespoke Canopies, Tonneau Covers & Hoods for Seamaster 20 Boats
✓ No VAT Charges • ✓ 6-Day Turnaround • ✓ Postal Copy Service
Quick Answers: Seamaster 20 Covers
Seamaster 20 covers start from £979 for canopies and £389 for tonneau covers. No VAT charged - save 20%. Post your old Seamaster 20 cover for an exact copy in 6 working days.
We make covers for Seamaster 20 owners across the UK. Popular on Thames, Grand Union Canal, Broads. Family-run specialists since 2015.
Also known as: Seamaster 20, Seamaster Boats 20, Seamaster 20 Cruiser, Seamaster boat covers.
How much is a Seamaster 20 cover?
Seamaster 20 covers cost £979-£1089. Tonneau covers from £389, canopies from £979. No VAT - save 20%.
Where to buy Seamaster 20 covers?
UK Boat Covers makes bespoke Seamaster 20 covers. Post your old cover to us - we'll make an exact copy. UK-wide postal service from Oxfordshire.
Replacement Seamaster 20 canopy?
Order a replacement Seamaster 20 canopy made to your exact specifications. UV-resistant marine canvas, waterproof, 6-day turnaround.
Seamaster 20 tonneau cover?
Heavy-duty tonneau covers for Seamaster 20. Post your old cover - we copy it exactly. PVC or acrylic canvas options available.
Bespoke Seamaster boat covers?
Every Seamaster cover is made to measure. We copy your old cover exactly - zips, windows, custom features included. 6-day turnaround.
Seamaster 20 cover UK postal service?
Post your old Seamaster 20 cover from anywhere in the UK. We serve Seamaster owners nationwide. Family-run business in Oxfordshire.
Custom Covers for Your Seamaster 20
At UK Boat Covers, we specialize in creating bespoke marine canvas covers specifically designed for Seamaster 20 boats. Protect your classic Seamaster 20 with our custom-fit boat covers. This iconic 20ft cruiser, with its 7ft 6in beam, is perfectly suited for idyllic journeys along the Thames, navigating the historic Grand Union Canal, or exploring the picturesque Norfolk Broads. Renowned for its comfortable cockpit and robust design, the Seamaster 20 offers a stable platform for leisure boating. Our covers are designed to safeguard its unique charm and ensure it remains pristine for countless UK adventures, keeping it ready for your next inland waterway exploration.
Our unique postal copy service makes it easy: simply send us your existing cover, and we'll create an exact replica with improved materials. No need for on-site visits or complex measurements – we copy your old cover with precision accuracy.
About the Seamaster 20
| Brand | Seamaster |
| Length | 20ft |
| Beam | 7ft 6in |
| Cover service | Postal copy — post your old cover, we replicate it exactly |
These dimensions help confirm cover compatibility. Our postal copying service means we replicate from your actual cover — not from generic dimensions — so every cover fits perfectly regardless of build year or variant.
What We Offer for Seamaster 20 Boats
⛵ Boat Canopies
Full overhead covers with standing headroom. Perfect for year-round protection on UK inland waterways.
🛥️ Tonneau Covers
Waterproof cockpit covers for when your Seamaster 20 is moored or in storage. Keeps rain, leaves, and debris out.
🌊 Spray Hoods
Forward-facing protection for helm areas. Shields from wind and spray while maintaining visibility.
☂️ Bimini Tops
Collapsible sun shades for summer cruising. Provides shade and light rain protection.
Marine-Grade Materials
We use only premium marine canvas materials designed to withstand the UK climate:
- Marine-Grade Acrylic (Sunbrella): Superior UV resistance, breathable, excellent color retention. Ideal for canopies and bimini tops. 7-10 year lifespan.
- PVC-Coated Polyester: Completely waterproof, durable, easy to clean. Perfect for tonneau covers and winter storage. 5-7 year lifespan.
- Heavy-Duty PVC: Maximum weather protection for harsh conditions. Best for long-term outdoor storage.
All materials include UV inhibitors, waterproofing, and are designed specifically for marine environments.
Why Choose Our Postal Service?
- No Site Visits Required: Send your old cover by post – no need to coordinate appointments
- Perfect Fit Guaranteed: We copy your existing cover exactly, ensuring precision fit
- Fast 6-Day Turnaround: From receiving your old cover to delivering the new one
- UK & Europe Delivery: We serve boats across the UK and European waterways
- No VAT Charges: Transparent pricing with no hidden VAT
- Family-Run Business: Personalized service from marine canvas specialists
Typical Pricing for Seamaster 20 Covers
Prices vary based on size and complexity, but typical costs are:
- Boat Canopy (Acrylic): £450-750
- Cockpit Tonneau (PVC): £300-500
- Spray Hood (Acrylic): £250-450
- Bimini Top (Acrylic): £350-600
All prices include materials, fabrication, and delivery. No VAT charges.
Perfect for Seamaster 20 Waterways
We've outfitted hundreds of Seamaster boats across UK waterways. The Seamaster 20 is commonly found on:
- Thames
- Grand Union Canal
- Broads
Our covers are designed specifically for the UK's damp climate and moderate UV levels, providing the perfect balance of waterproofing, breathability, and durability.
Key Seamaster 20 Features
- Thames & Broads Ready
- Classic Cruiser Safeguard
- Open Cockpit Protection
- Inland Waterway Security
More Seamaster Boat Covers
The Seamaster 20 is part of the Seamaster range. We make bespoke covers for all Seamaster models — explore the full range:
Seamaster Boat Covers — Full Range →
Also see: Popular Boat Models | All Boat Models
Related Boat Models
We also create custom covers for these similar boats:
Seamaster 23
Seamaster • 23ft
The Seamaster 23, with its classic 23ft length and 8ft 6in beam, is perfectly suited for navigating the UK's beloved inland waterways. Its practical d...
Seamaster 25
Seamaster • 25ft
Protect your cherished Seamaster 25, a classic 25ft cruiser with a generous 9ft beam, perfect for exploring the UK's iconic waterways. Renowned for it...
Seamaster 25 Cadet
Seamaster • 25ft
The Seamaster 25 Cadet is a cherished 25ft inland cruiser, ideally suited for navigating the UK's picturesque waterways, including the Thames, Norfolk...
Seamaster 26 Commander
Seamaster • 26ft
The Seamaster 26 Commander, a classic 26ft cruiser with a generous 9ft beam, is perfectly suited for exploring the diverse UK waterways. Its sturdy de...
Seamaster 27
Seamaster • 27ft
The Seamaster 27, a classic 27ft inland cruiser with a generous 9ft 6in beam, offers comfortable cruising for UK waterways. Renowned for its robust bu...
Seamaster 27 Dory
Seamaster • 27ft
Protect your classic Seamaster 27 Dory with a custom-fit boat cover. This versatile 27ft vessel, with its stable 9ft 6in beam, is a popular choice for...
Helpful Guides for Seamaster 20 Owners
Read our expert guides relevant to your Seamaster boat:
Areas We Cover
We make bespoke Seamaster 20 covers for boat owners across the UK. Waterways we regularly serve:
Key towns and locations we serve:
Cover Services Across the UK
We make Seamaster 20 covers for boat owners across the UK inland waterways. Browse our service pages:
Explore Our Canal Boat Cover Range
In addition to Seamaster 20 covers, we make bespoke covers for all types of canal boats:
Ready to Protect Your Seamaster 20?
Get a free quote for your bespoke boat cover. Our marine canvas specialists will recommend the perfect materials and design for your Seamaster 20.
No VAT charges • 6-day turnaround • UK & Europe delivery
Get a Free Quote