Seamaster 820 Boat Cover Guide: Sizes, Materials & Prices

Introduction: Why Your Seamaster 820 Deserves a Bespoke Cover

Welcome, Seamaster 820 owners! You cherish your 27ft vessel with its comfortable 9ft 2in beam, whether navigating the tranquil Lancaster Canal, connecting via the Ribble Link, or mooring at Preston Marina. Protecting your boat from the elements is paramount, and a custom-fitted cover from UK Boat Covers offers the ultimate safeguard, ensuring longevity and preserving its pristine condition. Unlike generic options, our bespoke covers are designed to perfectly complement your Seamaster 820's unique lines, offering superior protection against rain, sun, and debris. Discover how our tailor-made solutions keep your pride and joy looking its best for years to come. Our high-quality covers start at just £1,089 for robust PVC and £1,199 for premium Acrylic fabric.

Why Choose a Bespoke Cover for the Seamaster 820?

For a distinctive cruiser like the Seamaster 820, a bespoke boat cover is not merely a luxury; it’s an absolute necessity. Its specific 27ft length and generous 9ft 2in beam mean off-the-shelf universal covers will inevitably fit poorly, creating baggy areas that collect water, flap in the wind, and ultimately offer inadequate protection. Our custom approach accounts for every curve of your Seamaster 820’s hull, the precise contours of its deck layout, and the exact dimensions, ensuring a snug, drum-tight fit. This eliminates water pooling and wind abrasion, significantly extending the life of your cover and the condition of your boat. Our innovative postal copy service guarantees this precision, replicating your old cover’s exact fit onto new, durable marine-grade material.

See our Seamaster 820 model page for full specifications and cover options.

Cover Types Available for the Seamaster 820

UK Boat Covers provides a comprehensive range of cover types perfectly suited for your Seamaster 820, catering to its diverse uses on waterways like the Lancaster Canal and Preston Marina. Our canopy covers provide full enclosure for extended stays, offering living space and protection from the elements. Tonneau covers are ideal for securing the cockpit when docked or not in use, offering robust protection. We also craft custom cockpit covers and spray hoods, designed to integrate seamlessly with your boat's existing structure, shielding the helm and seating areas. For winter storage, our heavy-duty winter covers offer maximum protection against frost, snow, and damp, ensuring your Seamaster 820 remains pristine throughout the off-season.

• Full Boat Canopy - Complete weather protection
• Tonneau Cover - Cockpit and deck coverage
• Cockpit Cover - Targeted cockpit protection
• Spray Hood - Windscreen and helm shield
• - Seasonal protection

Best Materials for Seamaster 820 Covers

Choosing the right material for your Seamaster 820's cover is vital for its performance and longevity. We offer two primary options: hard-wearing PVC marine fabric and premium Acrylic canvas. PVC, starting from £1,089, is exceptionally waterproof and incredibly durable, making it an excellent choice for inland waterways like the Lancaster Canal where robust, all-weather protection against rain and debris is crucial. Acrylic fabric, from £1,199, offers superior breathability, excellent UV resistance, and a more textile-like feel, preventing condensation and mildew – ideal for boats moored in varied conditions. Both materials are marine-grade, providing outstanding protection, but Acrylic tends to have a longer lifespan in direct sunlight and maintains its aesthetic appeal for longer.

Compare materials in detail: Our fabrics page | Material comparison guide

Measuring Your Seamaster 820 for a New Cover

Accurate measurement is the cornerstone of a perfect bespoke cover for your Seamaster 820. While we specialise in copying existing covers, if you’re starting fresh, it’s crucial to precisely capture your boat’s 27ft length and 9ft 2in beam. Measure from the very tip of the bow to the stern, and for the beam, measure the widest point across the hull. Also, consider any specific features like windscreen height, grab rails, or mast positions that the cover will need to accommodate. However, the simplest and most accurate method is utilising our postal copy service; by sending us your old cover, we eliminate all potential measuring errors, guaranteeing a perfect, tailor-made fit without you needing to take a single measurement.

Need help? See our size guide or use our postal copy service to skip measuring entirely.

Seamaster 820 Cover Prices

Investing in a bespoke cover for your Seamaster 820 is an investment in its future, with transparent and competitive pricing from UK Boat Covers. Our PVC covers start from just £1,089, offering exceptional durability and waterproofing, while our premium Acrylic covers begin at £1,199, providing enhanced breathability and UV resistance. The final price depends on your chosen material and any bespoke features like windows or zips, but importantly, as a family-run business, we operate without VAT. This means you save a significant 20% compared to many competitors, offering incredible value. A custom-fit cover far surpasses generic alternatives in terms of protection and longevity, preventing costly damage and repairs in the long run.

View full price list | Request a personalised quote

How to Fit a Cover on Your Seamaster 820

Correctly fitting your new Seamaster 820 cover is crucial for its effectiveness and lifespan. Begin by ensuring the cover is correctly aligned, typically with a designated bow point. Carefully drape it over the boat, paying close attention to specific features like the windscreen position, grab rails, and the unique cockpit layout of your 820. Secure all fastenings, bungees, or straps evenly to achieve a taut, wrinkle-free fit. It's essential to prevent any areas where water might pool; consider using support poles or frames to create a peak, allowing rainwater to run off easily. Ensure there's adequate ventilation to prevent condensation, especially vital for boats moored on the Lancaster Canal, to keep the interior dry and prevent mildew.

Caring for Your Seamaster 820 Cover

To maximise the lifespan and performance of your Seamaster 820 boat cover, regular maintenance is essential. Periodically clean your cover with a soft brush and mild, non-detergent soap, rinsing thoroughly to prevent the build-up of dirt, algae, and mildew – common issues on inland waterways like the Lancaster Canal. Allow it to air dry completely before storing or refitting. Inspect the cover regularly for any small tears, loose stitching, or developing weak spots and address them promptly to prevent larger damage. During winter storage, ensure the cover is completely dry before folding neatly and storing in a cool, dry place. Proper care ensures your cover will protect your Seamaster 820 for many seasons.

More tips: Cleaning guide |

Our Postal Copy Service for Seamaster 820 Owners

Our unique postal copy service is specifically designed to provide Seamaster 820 owners with a perfectly fitting cover, effortlessly. The process is straightforward: simply send your old Seamaster 820 cover to our workshop in Carterton, Oxfordshire. Our skilled team will then meticulously use your existing cover as a precise template, replicating every detail and dimension onto your chosen new, marine-grade PVC or Acrylic fabric. This method guarantees an exact, bespoke fit, tailored specifically to your boat's unique features, without the need for you to transport your boat to us or struggle with complex measurements. We pride ourselves on efficiency, with your brand-new, custom cover typically dispatched within just 6 working days.

1. Post your old cover to UK Boat Covers, Carterton, Oxfordshire
2. We create a perfect copy using your old cover as a template
3. Choose PVC or Acrylic marine-grade fabric
4. Receive within 6 days via tracked UK delivery

Learn more about our postal service