Custom MT5 EA Development
Production-grade MQL5 Expert Advisors built from your strategy — with clean architecture, prop-firm-compliant risk controls, and full source code ownership.
Years MQL5 Experience
EAs & Indicators Built
Source Code Included
Countries Served
Why Most MT5 EAs Fail After the Demo
A backtest that looks perfect in the strategy tester often falls apart in live trading. The reasons are predictable — and preventable.
Common Failure Modes
- Backtest overfitting — optimized to noise, not signal. Looks great historically, fails forward.
- No risk layer — no daily loss limit, no drawdown guard, no spread filter.
- Broker mismatch — hedging vs netting, symbol suffixes, stop-level distances differ.
- Poor execution handling — no retry logic for TRADE_CONTEXT_BUSY, no requite protection.
- Prop firm rule violations — exceeding max daily loss, trading during news blackouts.
What We Do Differently
- Walk-forward validation — out-of-sample testing, not single-curve optimization.
- Risk-first architecture — hard stops, daily locks, spread gates built before signal logic.
- Broker-calibrated execution — we model your broker's fill policy, slippage, and symbol specs.
- Structured MQL5 code — signal, execution, risk, and logging separated into modules.
- Prop rules encoded — FTMO, FundedNext, The5ers rules as configurable parameters.
MT5 EA Development Services
Every project starts with a written specification. You approve the plan before we write a single line of code.
Expert Advisors
Single-symbol to multi-asset portfolio EAs. Signal engines, execution layers, trade management — each isolated and independently testable.
Custom Indicators
Buffered indicators, multi-timeframe panels, market structure tools, and dashboard systems. Optimised for both the tester and live charts.
Risk Engines
Fractional sizing, daily loss locks, trailing equity stops, correlation-aware exposure caps. Prop-firm compliance built into every build.
MQL4 to MQL5 Conversion
Full architectural migration — not a line-by-line port. Your MT4 EA rebuilt to exploit MT5's event model, position management, and tester.
PineScript to MQL5 Conversion
TradingView strategies become MT5 EAs with proper execution logic. Indicators become buffered custom indicators. No functionality lost.
EA Audit & Optimisation
Existing EA underperforming? We audit the logic, identify weaknesses, add filters, and optimise parameters using proper walk-forward methodology.
MT5 EA Development Process
From strategy idea to a deployed, live-trading EA in 5 structured phases.
Strategy Spec
We document your entry/exit rules, risk limits, broker details, and prop constraints into a written specification.
Architecture & Code
Clean MQL5 with separated signal, execution, risk, and logging modules. Code you can maintain or hand off.
Backtest & Validate
Tick-data backtests, walk-forward analysis, and Monte Carlo simulation. We model realistic spreads and slippage.
Forward Test
Demo forward run on your broker. We monitor fill quality, verify risk controls, and make final adjustments.
Deploy & Support
VPS setup, operator checklist, and 14-day post-delivery support. You receive full source code and documentation.
Who This Is For
Good Fit
- Prop firm traders who need hard risk controls and compliance
- Strategy owners with defined rules and realistic expectations
- Funds and trading desks scaling multi-pair automation
- Vendors commercialising EAs with licensing hooks
- Traders who value source ownership and maintainable code
Not a Good Fit
- Anyone seeking guaranteed profit claims or get-rich-quick systems
- Projects without a written strategy or risk model
- Requests requiring broker rule manipulation or cheating
- Ultra-low budgets that cannot accommodate testing and support
MT5 EA Development Pricing
Fixed-price quotes based on complexity. No hourly billing. No surprises.
Simple EA
- Single symbol/strategy
- 2–5 indicators
- Basic risk management
- Standard backtesting
- Delivery: 5–7 days
Complex EA
- Multi-symbol / multi-TF
- Advanced rules engine
- Prop-firm compliance layer
- News filter + session controls
- Walk-forward optimisation
- Delivery: 10–14 days
Portfolio / Enterprise
- Multi-asset portfolio EAs
- Licensing & white-label
- Custom dashboard panels
- VPS deployment & monitoring
- Ongoing support retainer
Every quote is fixed price. You approve before we code.
What You Receive
Full Source Code
Complete MQL5 source with modular architecture. You own it fully.
Backtest Report
Tick-data backtest with walk-forward and Monte Carlo validation.
Parameter Presets
Optimised SET files for different risk profiles and account sizes.
Documentation
Setup guide, parameter reference, and deployment runbook.
14-Day Support
Post-delivery support for installation, configuration, and edge-case fixes.
NDA Available
Your strategy logic is your IP. We sign NDAs on request.
MT5 vs MT4 for Automated Trading
Why serious algo traders choose MT5 for new development.
| Feature | MT5 | MT4 |
|---|---|---|
| Execution Model | Hedging + Netting | Hedging only |
| Strategy Tester | Multi-currency, real ticks, MQL5 cloud | Single pair, 4 modelling modes |
| Order System | Position + Order + Deal separation | Legacy order/position model |
| Timeframes | 21 timeframes (incl. 2H, 3H, 4H, 6H, 8H, 12H) | 9 timeframes |
| Event Model | OnTradeTransaction, OnBookEvent, OnTimer | init(), start(), deinit() only |
| Indicators | 80+ built-in, multi-asset support | 50+ built-in, forex only |
| Market Depth | Full DOM with tick volume | Limited |
Case Study: Prop Firm London Session EA
The Problem: A prop firm trader was missing 30% of valid London session entries due to manual execution. Their daily loss limit was breached twice in one month.
What We Built: A custom MQL5 EA with server-time session filter, spread gate, ATR-based position sizing, and an automatic flat at 80% of the daily loss buffer.
The Result: The client passed their evaluation on the first attempt post-deployment. The EA applied consistent rule application across 90+ trades without manual overrides. Drawdown stayed within prop limits every trading day.
MT5 EA Development — Frequently Asked Questions
How much does MT5 EA development cost?
Fixed pricing based on complexity. Simple EAs range from $300 to $700. Complex multi-symbol or prop-firm-ready EAs range from $700 to $2,500. Enterprise/portfolio systems are quoted per project. All quotes are fixed-price — no hourly billing.
How long does it take to build an MT5 EA?
Simple EAs are delivered in 5–7 business days. Complex multi-symbol systems take 10–14 days. Enterprise portfolio EAs with custom dashboards and licensing may require 3–4 weeks.
Do you provide the MQL5 source code?
Yes. You receive full MQL5 source code with every project unless you specifically request a compiled EX5 build. Source code comes with modular architecture and documentation.
Can you make my EA prop-firm compliant?
Absolutely. We encode daily loss limits, max drawdown cutoffs, consistency score guards, max trades-per-day rules, and news blackout windows. Compatible with FTMO, FundedNext, The5ers, and other major prop firm rules.
Can you convert my TradingView Pine Script to MT5?
Yes. We specialise in PineScript to MQL5 conversion. Your TradingView strategy becomes a fully functional MT5 EA with proper execution logic, retry handling, and broker-aware order management.
What if my EA doesn't work as expected after delivery?
We offer 14 days of post-delivery support for bug fixes and configuration adjustments. If the EA does not behave as specified in the agreed spec, we fix it at no extra cost.
Do you sign NDAs for proprietary strategies?
Yes. Standard for strategy owners and vendors. Your trading logic is your intellectual property. We never share, reuse, or sell client strategies.
Which brokers do you support for MT5 EAs?
Any broker offering MT5. We handle symbol suffix variations (.m, .pro, etc.), hedging vs netting modes, and broker-specific stop-level and freeze-level distances. Common brokers: Exness, IC Markets, Pepperstone, FTMO.
Ready to Build Your MT5 Expert Advisor?
Share your strategy rules, risk preferences, and broker details. We'll reply within 24 hours with a fixed-price quote and timeline.
Your strategy details are confidential. NDA available on request.