Greenhouse Assembly Cost Estimator
This tool is here to help you budget. It gives you a rough idea of what it could cost to hire someone to assemble your greenhouse. Pick your greenhouse by brand and model, or enter a size, and we will show an estimate based on average U.S. assembly prices from Exaco for its Riga, Janssens and specialty models.
- your city and state, and local labor rates
- the installer's experience and how busy they are
- site preparation, leveling and the foundation (not included)
- how easy it is to reach the site, slopes and obstacles
- travel, hotel and fuel if the crew comes from out of town
- accessories, extra doors, weather, permits and taxes
Price list
Average U.S. greenhouse assembly prices
These are Exaco's average U.S. starting prices for a crew to build each greenhouse from the ground up on a prepared site. They do not include site preparation, the foundation, travel or accessories.
| Model | Size | Crew and time | Assembly |
|---|---|---|---|
| Hoklartherm Riga (polycarbonate) | |||
| Riga 2s | 8 x 7 ft | 2 people, about 1 day | From $1,100 |
| Riga 3s | 8 x 11 ft | 2 people, about 1 day | From $1,200 |
| Riga 3 | 10 x 11 ft | 2 people, about 1 day | From $1,530 |
| Riga 4s | 8 x 14 ft | 2 people, about 1 day | From $1,600 |
| Riga 4 | 10 x 14 ft | 2 people, about 1 day | From $1,750 |
| Riga 5 | 10 x 18 ft | 2 people, about 1 day | From $1,800 |
| Hoklartherm Riga XL (polycarbonate) | |||
| Riga XL 5 | 14 x 16 ft | 2 people, 1 to 2 days | From $2,500 |
| Riga XL 6 | 14 x 19 ft | 2 people, 1 to 2 days | From $2,500 |
| Riga XL 7 | 14 x 23 ft | 2 people, about 2 days | From $3,000 |
| Riga XL 8 | 14 x 26 ft | 2 people, about 2 days | From $3,000 |
| Riga XL 9 | 14 x 30 ft | 2 to 3 people, 2 to 3 days (kits can add a 3rd day) | From $4,000 |
| Janssens Junior Victorian (glass) | |||
| Junior Victorian J-VIC 23 | 8 x 10 ft | 2 people, about 1 day | From $1,500 |
| Junior Victorian J-VIC 24 | 8 x 13 ft | 2 people, about 1 day | From $1,600 |
| Janssens Royal Victorian (glass) | |||
| Royal Victorian VI23 | 8 x 10 ft | 2 people, about 1 day | From $1,400 |
| Royal Victorian VI34 | 10 x 15 ft | 2 people, about 1 day | From $2,000 |
| Royal Victorian VI36 | 10 x 20 ft | 2 people, 10 to 12 hours | From $2,250 |
| Royal Victorian VI46 | 13 x 20 ft | 2 people, 12 to 16 hours | From $2,750 |
| Janssens Retro Royal Victorian (glass) | |||
| Retro Royal Victorian VI34 | 10 x 15 ft | 2 people, 2 to 3 days | $3,500 to $4,500 |
| Retro Royal Victorian VI46 | 13 x 20 ft | 2 people, 2 to 3 days | $3,500 to $4,500 |
| Janssens Orangeries (glass, T-shaped) | |||
| Junior Victorian Orangerie | 10 x 13 ft | 2 people, about 1 day | From $2,150 |
| Royal Victorian Orangerie | 13 x 16 ft | 2 people, about 2 days | From $3,500 |
| Royal Antique Orangerie | 13 x 16 ft | 2 people, about 2 days | From $3,500 |
| EOS Royal T Orangerie (hinged doors) | 13 x 13 ft | 2 people, about 2 days | From $3,500 |
| EOS Royal T Orangerie against a wall (hinged doors) | 13 x 13 ft | 2 people, about 2 days | From $4,000 |
| Pavilions and gazebos (special quote) | |||
| Hoklartherm Rondo Pavilion | 2 people, about 2 days | From $3,000 | |
| Janssens Cathedral Victorian Orangerie | 15 x 20 ft | 3 people, 3 to 4 days | $4,000 to $5,000 |
| Bali Gazebo | 2 to 3 people, about 1 day | From $3,000 | |
Exaco asks customers to call for a special quote on Retro Royal Victorian, pavilion and gazebo models. Out-of-town crews: about $0.50 per mile plus $150 per night.
Before you book
What changes the price of greenhouse assembly?
| Factor | Why it matters |
|---|---|
| Where you live | Labor rates differ a lot between cities and states. Rural areas may need a crew to travel. |
| Installer experience | A crew that has built the same model before works faster. A general handyman may take longer or charge more. |
| Site preparation | The prices assume a level, ready site. Clearing, grading and leveling are extra. |
| Foundation | Glass greenhouses need a level, square, solid base. Building it is a separate job. |
| Access | Long carries, stairs, gates, slopes and tight spaces add hours. |
| Accessories and doors | Shelves, vents, fans, extra doors and drop-down door kits add install time. |
| Weather and season | Spring is the busiest time. Rain and wind can push a build to another day. |
Ready to find an installer? See crews our customers have used and tips for hiring the right one.
Questions
Greenhouse assembly cost FAQ
How much does it cost to have a greenhouse assembled?
Based on average U.S. starting prices from Exaco, professional assembly of a hobby greenhouse starts at about $1,100 for a small Riga 2s and $1,400 to $2,750 for a Royal Victorian. Large models such as the Riga XL 9 start around $4,000, and pavilions and orangeries can reach $5,000 or more. Your real price depends on your city and state, the installer, site preparation, the foundation, access to the site and travel.
How long does it take to assemble a greenhouse?
Most Riga and Royal Victorian greenhouses take a crew of 2 about one day. A Royal Victorian VI46 takes about 12 to 16 hours, Riga XL models take 1 to 3 days, and orangeries and pavilions take 2 to 4 days. Ground preparation, weather and accessories can add time.
Does the assembly price include the foundation?
No. Exaco's assembly prices are for building the greenhouse from the ground up on a site that is already prepared. Leveling the ground, building a foundation or base, permits, travel and taxes are extra. Use our foundation calculator to plan the base.
Does Mulberry Greenhouses assemble greenhouses?
No. Mulberry Greenhouses does not assemble or install greenhouses and is not affiliated with any assembly crew. This estimator uses average U.S. starting prices from Exaco to help you budget. Our Assembly Crews page lists crews our customers have used, and you agree the price and work directly with the installer.
Can I assemble a greenhouse myself?
Yes. Many of our kits are designed for DIY assembly by 2 or more people with basic tools, and each kit includes the manufacturer's instructions. Glass greenhouses need a perfectly level, square base, so take extra care with the foundation.
More tools
Other greenhouse calculators
- Foundation CalculatorHow much concrete, gravel, pavers or lumber your greenhouse base needs.
- Heater Size CalculatorHow many BTUs it takes to keep your greenhouse warm on the coldest night.
- Heating Cost CalculatorWhat a winter of heating will cost with electric, propane or natural gas.
- Fan and Ventilation CalculatorThe exhaust fan CFM and vent openings that keep summer heat down.
- Snow Load CalculatorHow much the snow on your roof weighs and when to brush it off.
- Greenhouse Size CalculatorHow big a greenhouse you need for the plants you want to grow.
- Shade Cloth CalculatorThe right shade percentage and cloth size for your greenhouse.
- Grow Light CalculatorHow many grow lights it takes to give your plants enough light in winter.
- Rainwater CalculatorHow much water your greenhouse roof can collect for your plants.
Not sure what your greenhouse will need?
Tell us which greenhouse you are looking at and where you live, and we will help you plan the build.
Call 678-408-8222Find an assembly crewThis estimator is only to help you budget. Mulberry Greenhouses does not assemble or install greenhouses and is not affiliated with any installer. Prices shown are average U.S. starting prices from Exaco as of November 2026 and may change. They are estimates only, not a quote or a guarantee.