13600 NE Spring Blvd. Bellevue
Open Weekdays 7:30 to 5 | Closed Weekends | 425-821-2400


Seattle Customers Contact Mac's Upholstery

5015 15th Avenue NW Seattle, WA 98107 | 206-783-1696

35 years of service

Boat & Yacht Canvas

Sunmark manufactures the finest custom canvas tops, boat enclosures, bimini tops, slant back covers, tonneau covers, bridge covers and dodgers for demanding Eastside boat owners. We don't staff production lines or hire unskilled workers. Our experienced craftsmen strive for perfection one project at a time.

canvas repair

Fine craftsmanship is all-important because Eastside yacht owners don't cut corners on yacht canvas and yacht enclosures.

  • boat canvas bow cover
  • boat canvas
  • boat canvas frame

Our commitment to quality in both materials and workmanship is the reason customers keep coming back. It's also why they recommend Sunmark when friends or family ask for the best canvas shop on the Eastside.

We deliver on our promise of superior products at a fair price. Why risk the aggravation of substandard canvas upholstery when Sunmark is a phone call away?

Canvas Repair & Cleaning

In addition to fabricating custom canvas boat tops, enclosures, bimini tops, dodgers, cockpit covers, camper back covers, and bridge covers, Sunmark is the place to go for a boat canvas refit. Why purchase brand new canvas if your old set can be repaired?

In some cases, a boat enclosure is too far gone for a canvas rebuild. For example, if you can tear the canvas with your hands, there's not much we can do short of building a new enclosure. But, if all you need is a new set of snaps, a new plastic window or somebody to resew a zipper or patch a hole, give us a call.

Sunbrella Fabrics

We recommend Sunbrella marine fabrics because they hold their vibrant color even with constant exposure to the sun, salt and chlorine of harsh marine environments.

All Sunbrella fabrics resist mold and mildew. Should exposure to dirt, debris and the elements cause mold and mildew to occur, Sunbrella marine canvas can be quickly and easily cleaned with a simple bleach solution.

Clean & Treat Boat Canvas

Sunmark also cleans and treats boat canvas. Ask about our mildew removal and canvas waterproofing services. Extend the life of your dodger, bimini top or boat enclosure with a thorough cleaning.

sunbrella canvas sunbrella canvas
boat canvas boat canvas boat canvas boat canvas

canvas boat cover

canvas boat cover

Custom Marine Tubing

marine tubing

The first step in fabricating a custom boat enclosure is building a strong, aesthetically pleasing frame. The enclosure isn't going to look good or work properly unless the frame is right.

After a few years on the water, no two boats are precisely the same. That's why we bend our own stainless steel tubing at Sunmark. Bending the steel "in house" allows us to craft a rust-free frame that perfectly fits your boat or yacht. It also allows us to personalize your enclosure.