Should you hire a link building agency or build an in-house team? This guide compares both approaches across key factors to help you make the right decision for your business.
The Three Options#
Agency Partnership#
An external company handles your link building.
What they provide:
- Strategy and planning
- Prospecting and outreach
- Content creation (often)
- Execution and management
- Reporting and analysis
Engagement models:
- Monthly retainer
- Per-link pricing
- Project-based
- Hybrid arrangements
In-House Team#
Your own employees manage link building.
Team structures:
- Dedicated link builder(s)
- Part of SEO team responsibilities
- Content team handling outreach
- Combination of roles
What you need:
- Hiring and training
- Tools and subscriptions
- Management oversight
- Process development
Hybrid Approach#
Combining agency and in-house capabilities.
Common arrangements:
- In-house strategy, agency execution
- In-house content, agency outreach
- Agency for specific tactics, in-house for others
- Agency for scale, in-house for relationships
Comparing Approaches#
Cost Comparison#
Agency costs:
| Service Level | Monthly Cost | Expected Links | |---------------|--------------|----------------| | Basic | £2,000-5,000 | 5-15 | | Standard | £5,000-10,000 | 15-30 | | Premium | £10,000-25,000 | 25-60 | | Enterprise | £25,000+ | 50+ |
In-house costs:
| Component | Annual Cost | |-----------|-------------| | Junior hire (salary) | £30,000-40,000 | | Senior hire (salary) | £45,000-70,000 | | Benefits/overhead (20-30%) | +£6,000-21,000 | | Tools (Ahrefs, outreach, etc.) | £5,000-15,000 | | Training | £1,000-5,000 | | Management time | Variable |
Total in-house: £42,000-110,000/year for one person
Break-even analysis:
At similar total cost (£5,000-8,000/month):
- Agency might deliver: 15-30 links
- In-house might deliver: 15-40 links
In-house becomes more cost-effective at higher volumes, but requires successful hiring and management.
Quality Considerations#
Agency quality factors:
✓ Established processes and playbooks ✓ Diverse team expertise ✓ Experience across industries ✓ Existing relationships with publishers ✗ May use templatised approaches ✗ Less industry-specific knowledge ✗ You're one of many clients
In-house quality factors:
✓ Deep industry and brand knowledge ✓ Dedicated focus on your success ✓ Can build genuine relationships ✓ Direct quality control ✗ Limited by individual capabilities ✗ Smaller network initially ✗ Depends heavily on hire quality
Control and Transparency#
With agencies:
- Varying transparency levels
- May not see exact methods
- Reporting can be surface-level
- Less direct control of tactics
- Contracts and communication overhead
With in-house:
- Complete visibility
- Direct oversight of methods
- Real-time adjustments
- Full control of approach
- Part of your company culture
Speed and Scale#
Agency advantages:
- Start immediately (no hiring delay)
- Scale up/down quickly
- Handle volume more easily
- Cover multiple tactics simultaneously
In-house advantages:
- Faster iteration once established
- No communication lag
- Immediate priority shifts
- No contract limitations
Risk Factors#
Agency risks:
- Vendor dependency
- Knowledge leaves with agency
- Quality varies across team members
- Potential conflicts of interest
- Less control over methods
In-house risks:
- Single point of failure
- Hiring mistakes costly
- Employee turnover
- Limited experience/perspective
- Internal bias and blindspots
When Agency Makes Sense#
Best Fit Scenarios#
You're just starting:
- Need expertise you don't have internally
- Want to test link building before hiring
- Need to move quickly
- Don't have management capacity
You need specialised tactics:
- Digital PR requiring media relationships
- Technical link building expertise
- Tactics outside your team's skills
- Access to established networks
You need scale quickly:
- Aggressive growth targets
- Competitive catch-up required
- Limited time to build team
- Need surge capacity
Resources are constrained:
- Can't justify full-time hire
- Management bandwidth limited
- Prefer variable to fixed costs
- Need predictable outcomes
What to Look For#
Agency selection criteria:
- Transparency: Will they explain methods clearly?
- Track record: Can they show relevant case studies?
- Specialisation: Do they have expertise in your space?
- Communication: Are they responsive and clear?
- Fit: Do you work well together?
Questions to ask:
- What tactics do you use specifically?
- Can I see examples of links you've built?
- How do you vet link opportunities?
- What does your reporting include?
- Who will work on my account?
- What happens if you underperform?
Red flags:
- Won't explain methods
- Guarantees rankings or specific results
- Can't provide references
- Prices significantly below market
- Vague about team or process
When In-House Makes Sense#
Best Fit Scenarios#
Link building is core to your strategy:
- SEO is a primary growth channel
- Links are central to competitive advantage
- Ongoing, high-volume needs
- Long-term, sustained effort planned
You have unique assets:
- Strong brand that opens doors
- Industry relationships to leverage
- Expertise worth building on
- Content team to support
Control is important:
- Sensitive industry or brand
- Need full visibility into methods
- Want to build proprietary processes
- Long-term relationship building focus
Economics favour it:
- Volume justifies full-time role
- Multiple uses for the skill set
- Can attract and retain talent
- Management capacity available
Building an In-House Function#
Hiring considerations:
| Role Level | Salary Range (UK) | What You Get | |------------|-------------------|--------------| | Junior/Associate | £28,000-38,000 | Execution, needs direction | | Mid-level | £38,000-50,000 | Some strategy, mostly execution | | Senior | £50,000-70,000 | Strategy + execution | | Lead/Manager | £60,000-85,000 | Team management, strategy |
Skills to look for:
- Outreach and communication
- Content creation/editing
- Research and analysis
- Relationship building
- SEO fundamentals
- Persistence and resilience
Tools needed:
| Category | Examples | Cost/Year | |----------|----------|-----------| | Link research | Ahrefs, Semrush | £2,000-5,000 | | Outreach | Pitchbox, BuzzStream | £1,500-5,000 | | Email finding | Hunter, Snov.io | £500-2,000 | | Monitoring | Mention, Awario | £500-2,000 | | Project management | Asana, Monday | £0-500 |
Ramp-up timeline:
- Month 1-2: Learning, process development
- Month 3-4: Initial outreach, first links
- Month 5-6: Gaining momentum
- Month 6-12: Full productivity
The Hybrid Approach#
When Hybrid Works Best#
Combining strengths:
- In-house strategy, agency execution
- Agency for scale, in-house for quality
- Different tactics handled differently
- Peak periods supplemented by agency
Common hybrid models:
Model 1: In-house oversight, agency execution
- Internal strategist sets direction
- Agency handles volume outreach
- In-house manages high-value relationships
- Best for: Scale with control
Model 2: Tactic-specific split
- In-house handles relationship-based tactics
- Agency handles digital PR
- Each focuses on their strength
- Best for: Diverse tactic needs
Model 3: Base + surge
- In-house handles baseline needs
- Agency provides surge capacity
- Flexible scaling
- Best for: Variable demand
Structuring Hybrid Relationships#
Clear division of responsibilities:
- Who handles which prospect types?
- How is work coordinated?
- Who owns the relationship long-term?
- How is overlap avoided?
Communication protocols:
- Regular syncs (weekly or biweekly)
- Shared tools or systems
- Clear escalation paths
- Unified reporting
Quality consistency:
- Shared quality standards
- Unified brand voice
- Coordinated outreach calendars
- Joint review processes
Decision Framework#
Assessment Checklist#
Budget factors:
| Question | Agency | In-House | |----------|--------|----------| | Budget under £3,000/month? | ✓ | | | Budget £3,000-6,000/month? | Either works | Either works | | Budget over £6,000/month? | | ✓ | | Need predictable costs? | ✓ | | | Can invest in hiring? | | ✓ |
Strategic factors:
| Question | Agency | In-House | |----------|--------|----------| | New to link building? | ✓ | | | Link building is core strategy? | | ✓ | | Need to start immediately? | ✓ | | | Long-term sustained effort? | | ✓ | | Need specialised tactics? | ✓ | |
Operational factors:
| Question | Agency | In-House | |----------|--------|----------| | Limited management capacity? | ✓ | | | Need full control/transparency? | | ✓ | | Want to build internal expertise? | | ✓ | | Need flexibility to scale? | ✓ | | | Have strong brand to leverage? | | ✓ |
Decision Tree#
Start
├── Is link building core to growth strategy?
│ ├── No → Consider agency or limited in-house effort
│ └── Yes → Continue
│ ├── Budget over £5k/month with room to invest?
│ │ ├── No → Agency partnership
│ │ └── Yes → Continue
│ │ ├── Can you hire and manage effectively?
│ │ │ ├── No → Agency with in-house oversight
│ │ │ └── Yes → In-house with agency supplement
│ │ └── Need specialised tactics (PR, etc.)?
│ │ ├── Yes → Hybrid (in-house core + agency specialists)
│ │ └── No → Full in-house team
Transitioning Between Models#
From Agency to In-House#
When to transition:
- Volume justifies full-time role
- Want more control
- Building long-term competitive advantage
- Ready to invest in hiring
How to transition:
- Document current processes with agency help
- Hire and train while agency continues
- Gradual handoff of tactics
- Maintain agency relationship for specialist work
Timeline: Plan 3-6 months for smooth transition
From In-House to Agency#
When to consider:
- Key employee leaving
- Need specialist capabilities
- Scaling beyond current capacity
- Refocusing internal resources
How to transition:
- Document everything before changes
- Select agency carefully based on needs
- Provide thorough onboarding
- Maintain some internal knowledge
Common Transition Mistakes#
Moving too fast:
- Not documenting processes
- Immediate full handoff
- No overlap period
Moving too slow:
- Paying for both without benefit
- Unclear responsibilities
- Inefficient parallel work
Measuring Success by Model#
Agency Performance Metrics#
Quantity metrics:
- Links delivered vs contracted
- Cost per link
- Link velocity trends
Quality metrics:
- Authority of linking sites
- Relevance to your industry
- Traffic to linking pages
- Link sustainability (do they stay?)
Value metrics:
- Ranking improvements
- Organic traffic growth
- Strategic contribution
In-House Performance Metrics#
Efficiency metrics:
- Links per month
- Outreach success rate
- Time per link
Development metrics:
- Relationship database growth
- Process improvements
- Skill development
Business metrics:
- Cost per link over time
- SEO impact
- Cross-functional contribution
Summary#
Choosing between agency and in-house depends on your specific situation:
Choose agency when:
- Just starting or testing
- Need specialised tactics
- Limited management capacity
- Prefer variable costs
- Need to move quickly
Choose in-house when:
- Link building is core to strategy
- Volume justifies full-time role
- Control and transparency critical
- Building long-term advantage
- Can hire and manage effectively
Consider hybrid when:
- Want control with scale
- Need diverse tactics
- Variable demand
- Transitioning between models
There's no universally right answer. Assess your budget, strategy, capabilities, and goals to make the choice that fits your situation—and be prepared to evolve your approach as needs change.