TURNKEY PROJECTS
Turnkey greenhouse projects: scope, tendering and comparable offers
Turnkey means different things to different contractors, and the gap is where budgets break. Define the scope split before tendering, then compare offers that all answer the same question about who delivers civil works, utilities, commissioning and training.
SeedMatchGroup helps buyers source greenhouse equipment, agricultural seeds, fertilizers, irrigation systems, pumps, solar systems, drones, cooling systems and complete agriculture project suppliers worldwide.
SeedMatchGroup is supplier-neutral and helps buyers compare greenhouse, seed, fertilizer, irrigation and agriculture project suppliers worldwide. It does not manufacture, distribute or sell equipment or inputs.
What is included in a turnkey greenhouse project?
A turnkey greenhouse project typically covers design and structural calculation, the structure and covering, climate and irrigation systems, growing system, electrical and control installation, installation supervision or full installation, commissioning and operator training. What is frequently excluded — and must be checked in writing — is land preparation, foundations, water source development, grid connection, import duties, local permits and post-harvest facilities.
What should a commercial greenhouse project include? — scope checklist
- Site and design
Survey, layout, structural design and permits basis.
- Structure and covering
Frame type (polytunnel, multi-span, Venlo), glazing or film, gutters, foundations.
- Climate
Ventilation, heating and/or cooling, screens, climate computer.
- Water, irrigation and fertigation
Source, storage, treatment, pumping, drip or substrate system, nutrient dosing, drain handling.
- Energy and utilities
Grid connection, backup power, fuel or heat source, electrical distribution.
- Post-harvest
Packhouse, grading, cold storage, loading — when the business model needs them.
- Delivery services
Installation, commissioning, operator training, warranty, service and spare parts.
What the right choice depends on
| Factor | What it changes |
|---|---|
| Crop | Structure height, climate targets, growing system and post-harvest needs. |
| Climate zone | Whether cooling, heating or both dominate the climate and energy scope. |
| Water quality | Treatment equipment and fertigation design. |
| Site and utilities | Foundations, power backup and logistics. |
| Target market and budget | Technology level and how much automation is justified. |
Key terms
- Turnkey:
- One contract covers design, supply, installation and commissioning, handed over ready to operate.
- EPC:
- Engineering, procurement and construction — a contracting model where one party is responsible for delivery.
- Commissioning:
- Testing that installed systems work as specified before handover.
General planning guidance only — not an engineering design, supplier quote or investment advice. Final specifications need engineering review and supplier confirmation.
Sources
- Good Agricultural Practices for greenhouse vegetable production — Food and Agriculture Organization of the United Nations (FAO)
- Greenhouse Horticulture research programme — Wageningen University & Research
- FAO Irrigation and Drainage Paper 29 — Water quality for agriculture — Food and Agriculture Organization of the United Nations (FAO)
Published by SeedMatchGroup · Last reviewed
Product and supplier categories
Design & engineering
Layout, structural calculation, climate design and utility load definition.
Civil & foundations
Levelling, drainage, concrete works and access — often excluded from supplier scope.
Structure & systems
Frame, covering, climate, irrigation, growing system and electrical installation.
Utilities
Water source, storage, power supply, generators and solar hybrid options.
Commissioning
Testing, calibration, handover documentation and operator training.
Post-harvest
Packhouse, cold room and grading capacity planned with the production build.
Greenhouse construction companies: manufacturer, integrator or EPC contractor?
Companies that build commercial greenhouses take on different amounts of responsibility. Decide which one you are tendering for before you ask for quotes; otherwise offers cannot be compared.
| Contractor type | Usually delivers | Interface risk stays with | Fits when |
|---|---|---|---|
| Structure manufacturer | Frame, covering and its own design, with installation supervision or installation | Buyer, who coordinates climate, irrigation, electrical and civil works | You have an in-house or engineer-led project team |
| Systems integrator | Structure plus climate, irrigation, fertigation and controls from several manufacturers | Integrator for the systems it supplies; buyer for civil works and utilities | You want one technical package but will manage site works |
| EPC / turnkey contractor | Design, procurement, construction and commissioning under one contract, including agreed civil and utility works | Contractor, within the written scope and exclusions | Lenders or boards need a single point of responsibility |
See also: manufacturer vs integrator vs EPC, and EPC vs package procurement, in Procurement answers.
How a turnkey greenhouse RFQ works with SeedMatch Group
- Step 1
Describe the project
Site, crop, area, climate targets, utilities and budget band in the greenhouse RFQ.
- Step 2
Qualification review
A sourcing specialist checks scope and value; commercial projects start at USD 250,000. Buyers pay nothing for the review.
- Step 3
Scope split and exclusions
Civil works, utilities, permits and post-harvest are assigned before outreach, so offers answer the same scope.
- Step 4
Private supplier outreach
Suitable independent contractors are approached by SeedMatch; your contact details are not shared without your approval.
- Step 5
Comparable offers
Responses are set out on one basis — scope, exclusions, milestones and validity. The number of offers is not guaranteed.
- Step 6
You decide and contract
The contract is between buyer and contractor; SeedMatch does not build, install or sign on your behalf.
Who buys through this route
- Project developers and investors building from scratch
- Governments and development agencies running agri programmes
- EPC firms assembling multi-lot agriculture packages
- Corporate farms adding a new production site
Typical use cases
- Single-contract delivery of a 2–20 ha production site
- Splitting the build into lots to improve price transparency
- Aligning construction milestones with a financing drawdown schedule
- Comparing turnkey against separate supply-and-install tendering
Regions served
- Sub-Saharan and North Africa — Kenya, Nigeria, Ghana, Ethiopia, Morocco, Egypt
- Middle East and the Gulf — UAE, Saudi Arabia, Qatar, Oman, Jordan
- Central and South-East Asia — Uzbekistan, Kazakhstan, Thailand, Vietnam, Philippines
- Latin America — Mexico, Colombia, Peru, Chile, Brazil
- Mediterranean and Eastern Europe — Spain, Turkey, Greece, Romania, Azerbaijan
Why buyers use SeedMatchGroup
- Scope split written before tender so exclusions surface early.
- Milestone and payment structures compared alongside price.
- Financing routes coordinated with independent institutions in parallel.
- Buyer keeps every contractual decision — SeedMatchGroup signs nothing.
For consultants and advisors
Specifying a greenhouse for a client project?
Greenhouse consultants, horticultural engineers and agriculture EPC advisors use us to shortlist structure, climate-control and irrigation suppliers, prepare the RFQ pack and normalise the quotes that come back. You stay client-facing throughout.
Scoping a turnkey greenhouse project
A turnkey greenhouse contract bundles design, structure, climate, irrigation, controls, installation and commissioning into one accountable scope. The specification below is what a turnkey contract has to fix before a price means anything.
Structure and covering
- Multi-span polyhouse, Venlo glass or semi-closed structure — chosen from climate, crop and target production window
- Gutter height (4–7 m), bay width and span layout drive climate buffer and internal transport
- Glazing: single or double PE film, polycarbonate or 4 mm horticultural glass with diffusion
- Design wind, snow and seismic loads per local code — the single most common source of quote gaps
Climate, cooling, heating and ventilation
- Roof vents, side vents or forced ventilation with insect netting
- Pad-and-fan, high-pressure fogging or mechanical cooling in hot and arid climates
- Hot water heating, air heaters or geothermal for cold seasons and night setpoints
- Energy and shade screens, dehumidification, and CO₂ enrichment where the crop justifies it
Water, irrigation and fertigation
- Water source, storage volume, filtration and treatment specified before the dosing unit
- Drip lines or drippers per plant, zoning by crop stage and orientation
- Fertigation head with EC/pH control, dosing channels and recipes per growth stage
- Drain water collection, disinfection and recirculation for hydroponic layouts
Controls, energy and handover
- Climate computer with sensors, alarms, logging and remote access
- Connected load, transformer capacity, backup generation and solar option
- Installation, supervision, commissioning, FAT/SAT tests and operator training
- Spare parts pack, warranty terms and a defined maintenance interval
What affects project cost
- Technology level — structure and glazing typically carry 60–70% of hardware cost
- Climate uplift: heating and snow load in cold sites, cooling and shading in hot arid sites
- Site preparation, foundations, access roads and utility connections
- Supplemental lighting, screens and CO₂ where the production plan requires them
- Freight, import duty, local installation labour and currency terms
Information needed to quote
- Site country, coordinates or nearest town, and available land area
- Covered area target (m² or ha) and crop or production model
- Water source, quality analysis if available, and daily availability
- Available electrical capacity and grid reliability
- Target automation level, project stage and budget band
- Required completion date and financing status
What information is required for a greenhouse project quotation?
Site country and climate, covered area, crop, water source and quality, available power, required automation level, target start date and budget band. With those seven inputs a supplier can price a comparable scope; without them every quote is written to a different specification.
Frequently asked questions
Rarely cheaper on paper, often lower risk. Turnkey concentrates interface responsibility with one contractor; separate lots usually reveal better unit pricing but transfer coordination risk to the buyer. Which is better depends on the buyer's in-house project capability.
Land levelling and civil works, water source development, grid connection or generation, import duties and clearance, local permits and approvals, and post-harvest facilities. Each should be listed explicitly in the offer as included or excluded.
Commonly an advance, payments against production and shipment, a payment on installation progress and a retention released at commissioning. Exact terms are supplier-specific and negotiated in the contract.
No. SeedMatchGroup is not an EPC contractor and does not build, install or supervise construction. It prepares the tender, matches qualified independent contractors and structures the comparison.
Yes. Multi-lot tenders, public-programme requirements and investor-grade documentation are supported, including value bands, phasing and technical annexes suitable for board or lender review.
Source greenhouses suppliers with one structured request
Share scope, country, volume or capacity and timeline. A sourcing specialist reviews your brief before any supplier is contacted, and supplier identities stay private.
What a turnkey greenhouse project includes — and what it costs by size
A turnkey (EPC) greenhouse project delivers one integrated system under one scope: structure, climate, screens, irrigation, fertigation, water treatment, controls and packhouse. Indicative CAPEX runs from about USD 250K–500K per hectare for multi-span polyhouses to USD 3M–6M per hectare for semi-closed glass, before site works of roughly 15–30%.
Steel, foundations, gutters, film / polycarbonate / glass
Ventilation, pad-and-fan or fogging cooling, heating where needed
Shade, energy and blackout screens matched to latitude
Water intake, filtration, mains, drippers or gutters
Dosing unit, stock tanks, EC/pH control, drain handling
Storage, RO or disinfection where source quality requires it
Climate computer, sensors, irrigation and alarm logic
Grading, packing, cold room sized to peak harvest
| Technology level | 1 ha | 5 ha | 10 ha | 20 ha |
|---|---|---|---|---|
| Multi-span polyhouse / tunnel | 250K–500K | 1.3M–2.5M | 2.5M–5M | 5M–10M |
| Venlo glass | 1.5M–3.5M | 7.5M–17.5M | 15M–35M | 30M–70M |
| Semi-closed high-tech | 3M–6M | 15M–30M | 30M–60M | 60M–120M |
Turnkey company or competitive RFQ — and how to compare companies
Direct turnkey company
Designs, supplies and builds its own solution under one contract. Efficient when you already trust that company's technology stack; the supplier's engineers turn your objective into their standard solution.
Competitive procurement first
You own the specification: crop, climate, production target and technology level become one comparable RFQ, and several qualified turnkey or EPC companies respond to the same scope.
There is no single best turnkey greenhouse company. Suitability depends on crop, climate, project size, growing system, local installation capacity and the technology level you want. Group companies by what they publish — structures, climate systems, irrigation and fertigation, automation, engineering, construction and after-sales — then invite a shortlist to quote one defined specification. We do not rank or score companies; verify capabilities directly for your project.
Request quotes for your turnkey greenhouse in 3 steps
1. Define the project
Site, area in hectares, crop, water source, energy source, budget band and timeline.
2. Submit for review
A sourcing specialist reviews the brief and confirms it fits commercial projects from USD 250,000.
3. Compare like for like
Qualified independent suppliers quote the same specification, so offers can be compared directly. Free for buyers.
Auf Deutsch: Angebote in 3 Schritten anfragen
- 1. Projekt festlegen
Standort, Fläche in Hektar, Kultur, Wasser- und Energiequelle, Budgetrahmen und Zeitplan.
- 2. Zur Prüfung einreichen
Ein Beschaffungsspezialist prüft die Anfrage und bestätigt, dass sie zu kommerziellen Projekten ab 250.000 USD passt.
- 3. Gleiches mit Gleichem vergleichen
Qualifizierte unabhängige Anbieter kalkulieren dieselbe Spezifikation, damit die Angebote direkt vergleichbar sind. Für Käufer kostenlos.