Comparable technical offers
A low quotation can leave material grade, accessories, sheet geometry, packaging or delivery basis unclear. We organise those variables side by side so you compare what is actually offered.
Architect-Led Buying Office & Sourcing in Türkiye
Your B2B Sourcing Agent and Buying Office on the Ground in Türkiye
Compare offers on a consistent technical basis, document agreed factory checks in Türkiye and keep purchasing decisions under your control. SerSourcing prioritises steel houses, steel villas, prefabricated homes, steel warehouses, factory buildings, hangars and complete structural, sandwich-panel, board and envelope materials from initial brief to dispatch preparation.
Need suitable manufacturers for a defined specification? Start with a sourcing brief. Already talking to a Turkish factory? Scope a desk review, factory visit, quotation comparison or pre-shipment check before committing the next payment or shipment.
€190 – €790
13 Published Fixed Scopes
7 Districts
Core Corridor (€0 Extra Travel)
30 Days
Buying-Office Plans (No Auto-Renew)
100% Direct
Supplier Goods Contract & Payment
Structured Purchasing Control
Support built around your purchasing decisions
Scoped on-site observations
Once access and timing are confirmed, we attend the facility to address your agreed checklist, separating direct observations from reviewed documents and supplier statements.
Defined tasks & EUR tariff
Start with one €190 desk check, a €490 core-area factory visit or a €690 supplier shortlist, and add follow-up stages only when your purchase requires them.
Clear commercial role
Under buyer representation, goods contracts and goods payments stay directly between you and the supplier. Any direct supply offered by CFY is quoted separately as a seller offer.
Field & Desk Verification in Practice
Every control gate from supplier shortlist to container dispatch
On-Site Factory Review
Physical site attendance, accessible production observation, spot dimensional checks and permitted photo records (SS-VISIT €490 / SS-TECH €790).
Normalised Quote Matrix
Apples-to-apples technical comparison across m², thickness, steel gauge, export packing and Incoterms® (SS-COMPARE €290).
Pre-Shipment & Loading QC
Pallet protection, batch label verification and container/truck loading sequence recorded before dispatch (SS-PRE €490 / SS-LOAD €390).
Scoped Support Stages
Our core services across the purchasing cycle
Supplier sourcing
Build a shortlist against your product brief, specification and commercial requirements.
View scope & pricingSupplier verification
Review available company information and up to 5 documents with a clear record of what is established.
View scope & pricingFactory visits
Arrange a scoped visit to discuss the production route, observe relevant activities and document agreed points.
View scope & pricingQuotation comparison
Compare dimensions, materials, quantities, inclusions, documentation and delivery assumptions consistently.
View scope & pricingOrder follow-up
Track agreed milestones, organise supplier updates and surface open issues that need your decision.
View scope & pricingPre-shipment & loading checks
Review agreed product, quantity, packing and loading points before the shipment moves to its next stage.
View scope & pricing
Fixed-Scope EUR Services
Start with a service that fits your purchase
You can begin with one defined task and add further support when the next purchasing decision requires it.
SS-DESK
per company
Supplier Desk Check
€190
Review one supplier’s available company information and up to 5 documents (max 25 pages) remotely. No site visit.
Select this service
SS-VISIT
per site visit
Factory Visit
€490
Arrange one core-area visit, up to four on-site hours, with local travel and an English photo report.
Select this service
SS-SOURCE
per product family
Supplier Shortlist
€690
Research one defined product family (up to 10 line items; up to 5 candidates researched, targeting up to 3 suitable options).
Select this serviceNeed a coordinated programme or ongoing support?
Source & Visit combines a shortlist, quotation comparison and one selected factory visit for €1,290. Ongoing remote buying-office support starts at €1,250 per 30 calendar days, with 15 included hours.
Core field-service area: Maltepe, Kartal, Pendik, Tuzla, Gebze, Çayırova, Darıca.
Prices exclude any applicable VAT. Field prices apply to the defined core area and scope; other travel and third-party costs are agreed in your written quotation. Reports are delivered in English by default. Selecting a service in the form does not confirm an appointment or paid booking.
Transparent Model Comparison
How SerSourcing compares with commission agents, inspection-only firms and trading portals
International buyers in Türkiye typically encounter three incomplete models: commission intermediaries, post-order-only inspection firms, or resellers who hide the real manufacturer. SerSourcing combines technical sourcing, factory verification and shipment control under published fixed EUR fees.
| Criteria | SerSourcing (Architect & Engineer Buying Office) | Commission Sourcing Agents | Inspection-Only Agencies (PSI / CLS) | Trading Portals & Resellers |
|---|---|---|---|---|
| Factory Identity & Goods Contract | Open-book: you see the real manufacturer, contract directly and pay the factory directly | Often masked or restricted to protect ongoing commission | Cannot find or shortlist manufacturers (you must already have a PO) | Hidden: portal invoices as seller and conceals the underlying plant |
| Fee Structure & Cost Alignment | Published fixed EUR fees (€190–€3,950) — fee does not inflate when order value grows | Percentage of order value — higher factory prices increase agent commission | Per man-day inspection fee only; no commercial quote normalisation | Undisclosed trader margin embedded inside unit product prices |
| CAD / BOQ & Unit Normalisation | Led by Architect, Civil Engineer & Interior Architect co-founders (€/m², LME + conversion, gauge/coating) | Generalist sales brokers across unrelated consumer goods | Checklist-only visual inspection; no pre-contract BOQ comparison | Limited to items the trader chooses to resell |
| On-Site Factory Audit, PSI & CLS | End-to-end: pre-deposit audit (SS-VISIT €490 / SS-TECH €790), PSI (€490) and container loading (€390) | Informal uncalibrated visits or outsourced without technical scope | Strong on PSI/CLS, but zero pre-deposit supplier search or commercial follow-up | Self-inspected by the seller (not independent buyer representation) |
| Multi-Supplier Consolidation & Retainer | Multi-plant readiness alignment (SS-MULTI €790) & 30-day Buying Office plans (BO-15/30/55) | Ad-hoc coordination tied to commission volume | Single-day, single-site dispatch tickets only | Bundled under opaque single-reseller invoicing |
| European Language Architecture | Full 406-page technical architecture across 7 languages (EN, TR, DE, FR, BG, RO, IT) | Typically 1–2 languages with thin landing pages | Global corporate templates not tailored to Turkish industrial zones | Catalogue grids with minimal technical specification depth |
Commercial role disclosure: Under SerSourcing buyer representation, goods contracts and payments remain directly between you and the manufacturer, and our remuneration is the agreed fixed EUR fee. Any separate direct supply offered by CFY Mühendislik Mimarlık is always quoted explicitly as a seller offer—never mixed with representation.
Transparent Evidence Workflow
From your brief to the next purchasing decision
1. Tell us what you need
Provide the product, quantity, destination, supplier details if known and the stage of your purchase.
2. Agree the work
We confirm feasibility, factory access requirements, scope limits, deliverables and written EUR terms before work starts.
3. Receive documented follow-up
We carry out the agreed checks and explain direct observations, document references, open points and decisions that remain with you.
Architect-Led Sector Focus
16 building sectors led by steel houses, villas, prefab homes, warehouses & hangars
Our #1 priority covers steel houses, steel villas, prefabricated homes, steel warehouses, industrial factory buildings and hangars—backed by structural steel & purlins, PIR/mineral-wool sandwich panels, fibercement/OSB/drywall boards, insulation, villa/industrial doors & windows, aluminum facades, anchors, marble/ceramics, sanitaryware, custom millwork, HVAC/lighting and villa/hotel FF&E.
SerSourcing is operated by CFY Mühendislik Mim. Dan. Yapı Malz. İnş. San. ve Tic. Ltd. Şti. in Maltepe, İstanbul, founded by Architect İdris YAĞMAHAN, Civil Engineer Celalettin YAĞMAHAN and Interior Architect M. Furkan YAĞMAHAN. Where accredited laboratory testing, statutory engineering sign-off or formal certification are needed, we identify and coordinate them separately.
Priority Sectors · Steel Houses, Villas, Prefab Homes, Warehouses & Hangars
Steel Houses & Villas (LGS)
LGSF Villas, Houses & Kits
Prefab Homes & Site Cabins
Prefab Houses, Camps & Cabins
Steel Warehouses & Hangars
Warehouses, Factories & Hangars
Structural Steel & Purlins
Z/C Purlins, Tubes & Steelwork
Sandwich Panels & Cladding
PIR/Rockwool Panels & Sheets
Fibercement, OSB & Drywall
Fibercement, Gypsum & Studs
Insulation & Membranes
Stone Wool, XPS & Membranes
Windows, Doors & Hardware
Villa Windows & Hangar Doors
Aluminum & Curtain Walls
EN 755 Profiles & Facades
Anchors, Sealants & Mortars
Anchors, Sealants & Adhesives
Marble, Travertine & Tiles
Marble, Travertine & Porcelain
Sanitaryware & Tapware
Ceramics, Mixers & Cisterns
Kitchens, Doors & Millwork
Kitchens, Wardrobes & Doors
Interior Panels & Hardware
Wall Panels, Trims & Fittings
HVAC, Plumbing & Lighting
Ducts, Pipes, Radiators & LED
Villa & Hotel FF&E Sourcing
Villa, Resort & Hotel FF&E
Türkiye Nearshoring & Export Corridor
Built for European, UK, Balkan & MENA construction supply chains
Sourcing from Türkiye combines heavy industrial capacity in the Marmara corridor with flexible road, Ro-Ro and short-sea transit—provided factory readiness and export paperwork are verified before dispatch.
Road Truck, Ro-Ro & Container Flexibility
Ship full curtain-side trucks (FTL), partial groupage pallets (LTL) or 20'/40' HC containers to Europe, the Balkans, the UK and MENA on far shorter replenishment cycles than long-haul Asian sea freight.
A.TR, EUR.1, DoP/CE & Packing List Alignment
Before dispatch (SS-DOCS €240 / SS-LOAD €390), we cross-check commercial invoice, packing list weights, A.TR / EUR.1 movement certificates, mill test reports and DoP/CE declarations against physical cargo.
€0 Extra Travel in Core Marmara Corridor
Standard field fees already include road travel across Maltepe, Kartal, Pendik, Tuzla, Gebze, Çayırova and Darıca—covering Istanbul Asian-side and Kocaeli industrial zones.
Multi-Factory Groupage & Project Sequencing
Purchasing steel, boards, aluminum facades, stone and FF&E from 2–4 Turkish plants? SS-MULTI (€790) synchronises production cut-offs, pallet dimensions and loading sequence before booking transport.
Multidisciplinary Founding Partnership · CFY
Founding Partners & Technical Leadership
SerSourcing is operated by CFY in Maltepe, İstanbul, bringing together architectural, civil engineering and interior architectural discipline for structured building-material purchasing.
İdris YAĞMAHAN
Architect · Co-FounderPrimary buyer contact leading architectural specification reviews, drawing interfaces, supplier shortlisting and scoped factory visit reporting.
Celalettin YAĞMAHAN
Civil Engineer · Co-FounderSupports structural steel profile, cold-formed framing, tolerance and industrial construction-component questions across purchasing briefs and technical reviews.
M. Furkan YAĞMAHAN
Interior Architect · Co-FounderFocuses on interior boards, acoustic & surface finishes, architectural fittings, sample alignment, export packaging details and multi-supplier order coordination.
Continue Exploring
Related Scoped Services, Sectors & Guides
Scoped Service
Services
Explore supplier sourcing, verification, scoped factory visits, quotation comparison, sample coordination, order follow-up and shipment checks in Türkiye.
Pricing & Scope
Prices & Packages
Published EUR tariff for all 13 standard services, 3 combined packages, 30-day buying-office plans, core-area travel rules and payment terms.
From €190 / company
View scope & pricing
Pricing & Scope
Fee Calculator
Estimate your EUR service subtotal from the verified EUR tariff with automatic bundle deduplication, travel checks and WhatsApp transfer.
From €190 / company
View scope & pricing
Report Standard
Sample Report
Inspect the structure of a SerSourcing report—including the editable template and three fictional training examples separating observations from statements.
Clear Boundaries & Scope Answers
Frequently Asked Questions
Yes. Many assignments cover a single supplier you already identified—such as a Supplier Desk Check (€190), a standard Factory Visit (€490 in our core area), a Quotation Comparison (€290) or pre-shipment and loading checks.
In a buyer-representation assignment, you contract with and pay the manufacturer directly for the goods; our agreement covers only the scoped SerSourcing service fee. If CFY offers direct supply of goods, it is issued as a separate seller quotation.
Standard field fees (€490 Factory Visit, €790 Technical Factory Review, €490 Pre-shipment Check, €390 Loading Observation) include local road travel within Maltepe, Kartal, Pendik, Tuzla, Gebze, Çayırova and Darıca. Other cities in Türkiye are quoted with explicit travel before you commit.
No. Reports record agreed observations, documents reviewed, supplier statements and open questions at the time of attendance. Accredited laboratory testing, structural engineering sign-off and formal product certification require separate qualified providers.
No. Our published EUR tariff uses fixed EUR fees for defined scopes and 30-day remote buying-office plans, excluding applicable VAT. Any known supplier relationships or fee arrangements are disclosed before engagement or purchasing decisions.
No. Submitting a brief opens the scope review at no charge. Paid work and factory appointments start only after access, schedule and written quotation terms are mutually confirmed.