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Assembly of greenhouses, sheds and gazebos!
Assembly Services

We can assemble a rocket and send it to Mars if need be!

+1 425 364 0733
GREAT PRICES
Our advantages
We assemble and install simple structures—greenhouses, gazebos, sheds, and carports—reliably and with lasting quality.
Our work combines solid craftsmanship with fair pricing, delivering real value every time.
We focus on long-lasting, precise results — not rushing the job.
Every project is built strong — engineered for durability and everyday use.
We tailor practical, efficient solutions to fit each client’s needs and space.

Sunjoy Pavilion & Pergola Assembly

Sunjoy sells hardtop gazebos, pavilions and pergolas with steel, aluminum or cedar frames and steel roofs, and the same size can come in different constructions. The 11×13 is listed as a galvanized steel frame, as a cedar frame with a black steel roof and as a metal frame with a pitched roof, at about 11.2 by 13.1 ft and 9.4 ft tall. Reviewers say the instructions are hard to follow in places and that the roof frame has many bolts and bars.

Anton Assembler builds Sunjoy pavilions and pergolas for homeowners in Seattle, Tacoma, Everett, Bellevue, Kirkland and Redmond. We confirm which construction you have, then build it from the manual.

Quick facts

  • Service area: Seattle, Tacoma, Everett, Bellevue, Kirkland, Redmond
  • Sizes we build: 11×13, 12×16 and other Sunjoy gazebos and pergolas
  • Sold at: Tractor Supply, Lowe’s, Walmart, Best Buy
  • Typical timing: 1 to 2 days
  • Price: Individual quote, payment after the work is done
If there is something that we have not assembled so far, this does not mean that we cannot do it – everything lends itself to logic!

Sunjoy sizes we assemble

Retailer listings sometimes mix model numbers, so send the model number from the box and a photo of the label.

Size Footprint What to expect
11×13 ft 143 sq ft Listed with steel, cedar and aluminum frames and a two-tier steel roof. A reviewer of the cedar model says the pillars and main roof frame need two to four people.
12×16 ft 192 sq ft A listing describes a gray cedar frame with a matte black steel two-tier roof rated at 3,500 lb. A large lift for the roof.
Other Sunjoy models varies Send the model name. We confirm the frame material and crew before the visit.

What makes a Sunjoy gazebo hard to build

Many bolts and bars. Reviewers describe the roof framing as tedious, with many bolts and bars. We sort and count hardware first.

Instructions. Owners say the directions are hard to follow in places. We build from the manual for your exact model and check each step.

Several people. One reviewer reports two to four people for the pillars and main roof frame. We send a crew sized to the model.

Different constructions. A steel frame, a cedar frame and an aluminum frame go together differently. We confirm which one you have first.

How the assembly day goes

  1. Unbox the kit and sort the hardware against the manual.
  2. Mark the footprint and level the post feet.
  3. Build the frame and check that it is square.
  4. Lift and fasten the two-tier roof.
  5. Install netting, curtains or planters if included.
  6. Anchor the structure to the base and do a final inspection.

Base and anchoring

A Sunjoy structure needs a level, firm base: a concrete slab, compacted gravel with pavers or a treated-lumber deck. A steel roof catches wind, so we anchor every structure with fasteners that match your surface. If you are unsure about your spot, send a photo and we will tell you what to change.

Get a quote for your Sunjoy pavilion

Every job is quoted individually, because the price depends on the model, the size, the site and any delivery. Send us:

  • the model name and size from the box label
  • a photo of the spot where it will stand
  • your address
  • whether you want pickup and delivery

Payment is made only after the work is completed.

Call +1 425 364 0733Email a request

Related pages

Purple Leaf gazebo assemblySojag gazebo assemblyBackyard Discovery pavilion assemblyAll pavilion assembly services

Anton Assembler is an independent assembly service and is not affiliated with Sunjoy. Brand names are used only to identify the products we assemble.

Projects

We work in all 50 states
Our headquarters is located in Washington State

If you would like a price quote for the assembly of your product please send us a request!

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Find out what customers think about our work
E
Emily R.
2 weeks ago
Seattle, WA
Gazebo 12x14 Yardistry (Costco)
Anton installed our Yardistry gazebo from Costco, and we couldn't be happier with the result. He handled everything professionally and made the whole process stress-free. The gazebo looks beautiful, feels incredibly sturdy, and has completely changed our backyard. I highly recommend Anton if you want the job done right.
J
Jessica M.
1 month ago
Lakewood, WA
Purple Leaf Gazebo 12x24
We hired Anton to build our Purple Leaf 12x24 gazebo, and he did an amazing job. It was a large project, but he stayed organized, worked efficiently, and paid attention to every detail. The finished gazebo looks fantastic, and we're already spending so much more time outside. Great experience from start to finish.
M
Michael T.
2 months ago
Colorado Springs, CO
Titan 12x28 Climate Pod Greenhouse
Anton assembled my Titan ClimaPod greenhouse, and I couldn't be more satisfied. It's a big structure, but he handled the entire installation with confidence and precision. Everything is perfectly aligned, solid, and ready to use. He's reliable, hardworking, and clearly knows what he's doing.
S
Sarah L.
3 months ago
Gig Harbor, WA
Yardistry 10x8 Greenhouse (Costco)
Anton built our Yardistry greenhouse from Costco, and the quality of his work really impressed me. He was punctual, professional, and made sure every detail was done properly. The greenhouse looks great, feels very solid, and I'm so glad we chose him for the installation. I'd definitely recommend Anton to anyone.
S
Sarah M.
4 months ago
Garden Enthusiast · Billings, MT
Greenhouse Climapod Virtue Black 9 by 21 Installation
Anton installed a beautiful greenhouse Climapod for me, and I'm beyond impressed! He worked mostly on his own and handled everything with such precision and care. It's clear he's very experienced. The whole process was smooth, and the greenhouse turned out even better than I hoped. Thank you, Anton!
J
James T.
5 months ago
Retired Engineer · Bothel, WA
Gazebo Yardistry (Costco) 12 by 14 Installation
I hired Anton and his team to build a gazebo Yardistry in my backyard. The project was a bit complex, so he brought in a few crew members, and they worked together seamlessly. The result? A solid, elegant structure that completely transformed my space. Anton is organized, professional, and easy to work with.
K
Karen L.
6 months ago
Homeowner · Seattle, WA
Shed Lifetime 8 by 15 Installation
Anton built a garden shed Lifetime for me and did most of the work by himself — and did it perfectly! He's punctual, polite, and clearly takes pride in what he does. The shed is sturdy and looks fantastic in my yard. I'm so happy I chose him for this project.
M
Mike R.
7 months ago
Contractor · Vancouver, WA
Carport Installation
I needed a carport for my driveway, and Anton handled the whole thing from start to finish. Since it was a larger job, he brought a small team with him. They worked efficiently, kept everything tidy, and the structure turned out solid and stylish. Anton clearly knows his trade — highly recommended.
E
Emily W.
8 months ago
Landscape Designer
Greenhouse Yardistry (Costco) 6,7 by 7,8 & Pergola PURPLE LEAF 11 by 18
Working with Anton was an absolute pleasure. As a landscape designer, I've collaborated with many installers, but Anton stands out. He handled the greenhouse installation solo and brought in a team for the pergola due to its complexity. Everything was done professionally and on time. I'll be recommending Anton to all my clients!
Send us a request
* Required: your name and either phone or email
FAQ
How much does Sunjoy assembly cost?

Every job is quoted individually, because the price depends on the model, the size and the site. Send the model, a photo of the spot and your address. Payment is made only after the work is completed.

How many people does a Sunjoy gazebo need?

One reviewer of the 11x13 cedar model reports two to four people for the pillars and main roof frame. We send a crew sized to your model.

How long does it take to assemble a Sunjoy gazebo?

Our crew usually finishes a project in 1 to 2 days, and we confirm the timing when we quote the job.

Do you assemble Sunjoy pergolas as well as gazebos?

Yes, and pavilions.

What base does it need?

A level, firm base such as a concrete slab, compacted gravel with pavers or a treated-lumber deck. We anchor the structure to it.

Can you assemble a Sunjoy kit bought at Tractor Supply, Lowe's or Walmart?

Yes. The store does not matter.

Send us a request
* Required: your name and either phone or email
GREAT PRICES

Full All-in Assembly of:

  • Plastic sheds (Costco, LifeTime) starting from $250 + tax
  • Greenhouse kits starting from $600 + tax
  • Gazebo, Carports starting from $700 + tax
  • We also offer pick up and delivery services for your structure items (sheds, gazebos, or greenhouse kits)
  • Service, repair, and maintenance of existing structures
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