One of the biggest challenges landlords face is finding reliable contractors. A botched repair, a missed appointment, or an inflated invoice can cost you time, money, and tenant satisfaction. Here’s how to build a network of contractors you can trust.
If you’re also worried about how the cost of poor maintenance adds up across your portfolio, read alongside this guide our breakdown of the true cost of delayed maintenance.
Why Contractor Quality Matters
The difference between a reliable contractor and an unreliable one is dramatic:
- Response time: Reliable contractors respond within 24 hours; unreliable ones take days
- Quality: Good work lasts years; poor work creates repeat issues within months
- Cost: Fair pricing vs inflated emergency rates
- Professionalism: On-time arrivals vs wasted tenant vacation days
A solid contractor network is one of the most valuable assets a landlord can build, especially when you combine it with structured maintenance tracking and preventive planning using checklists like our preventive maintenance guide.
Finding Quality Contractors
1. Start With Recommendations
The best contractors rarely advertise. They work on referrals:
- Ask other landlords in local property investor groups
- Request recommendations from letting agents
- Check with local property management companies
- Ask trusted contractors for referrals to other trades
Red flag: Contractors who rely heavily on paid advertising often struggle to retain clients.
2. Verify Qualifications
Before hiring, always verify:
- Gas Safe registration (for gas work. legally required)
- Part P certification (for electrical work)
- Public liability insurance (minimum £2 million coverage)
- Professional memberships (e.g., NICEIC, CIPHE, FMB)
- DBS checks (for contractors accessing occupied properties)
Pro tip: Keep digital copies of all certificates and update them annually. This also helps you stay on the right side of the new documentation standards explained in New Regulations: What Landlords Must Track in 2026.
3. Start Small
Never give a new contractor a major job first:
- Start with a small, straightforward repair (£100-300 range)
- Assess quality, communication, and pricing
- Gradually increase job complexity and value
- After 3-5 successful jobs, add to your core network
This approach limits your downside risk while identifying top performers.
Evaluating Contractor Performance
Track these metrics for every contractor:
Response Time
- How quickly do they respond to initial contact?
- How soon can they schedule work?
- Do they meet agreed timelines?
Quality of Work
- Does the repair last, or does the issue recur?
- Is the work site left clean?
- Do tenants complain about the contractor’s conduct?
Communication
- Do they update you proactively?
- Are they reachable when issues arise?
- Do they explain problems clearly to tenants?
Pricing
- Are quotes accurate to final invoices?
- Are prices competitive for the market?
- Do they try to upsell unnecessarily?
Pro tip: Use a simple 1-5 rating system after every job. Drop contractors who consistently score below 3. Over time, these scores become powerful when combined with maintenance data from tools like those discussed in 5 Signs You Need Maintenance Management Software.
Building Long-Term Relationships
The best contractor relationships are built on mutual respect and fair dealing:
Pay Promptly
- Pay within 7 days of invoice
- Don’t haggle on agreed prices
- Pay small invoices (under £200) immediately
Contractors prioritize landlords who pay on time.
Provide Consistent Work
Once you find a reliable contractor:
- Give them first right of refusal on new jobs
- Batch small jobs together for efficiency
- Provide advance notice of upcoming seasonal work
Consistent work earns you priority scheduling.
Communicate Clearly
- Provide detailed job descriptions upfront
- Include photos and tenant contact info
- Set clear expectations on timeline and budget
- Ask for photos of completed work
Good communication prevents misunderstandings.
Respect Their Expertise
- Ask for their professional opinion
- Don’t micromanage the approach
- Listen when they suggest preventive work
- Be flexible on minor scheduling changes
Contractors appreciate landlords who value their expertise.
Managing Multiple Contractors
For a portfolio of 5+ properties, you’ll need multiple contractors across different trades:
Core Team Structure
Build redundancy in critical trades:
- Plumbing: 2 primary contractors
- Electrical: 2 primary contractors
- General maintenance: 2-3 handymen
- HVAC: 1-2 specialists
- Specialist trades: On-demand (roofing, plastering, etc.)
Multiple contractors prevent bottlenecks and provide competitive pricing options.
Contractor Tiers
Organize contractors into tiers:
Tier 1 (Go-To Team):
- Proven track record of 10+ jobs
- Priority for all standard work
- 24-hour emergency response available
- Preferential payment terms
Tier 2 (Backup Team):
- Solid performers with 3-5 jobs completed
- Use when Tier 1 is unavailable
- Standard payment terms
Tier 3 (Probation):
- New contractors being evaluated
- Small jobs only
- Strict evaluation criteria
This system ensures you always have options while maintaining quality standards.
Red Flags to Watch For
Drop contractors who exhibit these warning signs:
- Inconsistent availability: Frequently “too busy” or unresponsive
- Quality issues: Multiple callbacks for the same problem
- Invoice padding: Charges don’t match quoted scope
- Tenant complaints: Multiple reports of unprofessional conduct
- Cutting corners: Using substandard materials or skipping steps
- Excuses: Always has reasons for delays or mistakes
Trust your instincts. if something feels off, it usually is.
Emergency Contractor Protocol
For urgent Category 1 issues (no heating, water leaks, electrical hazards):
- Primary emergency contractor: Available 24/7, premium rates accepted
- Secondary emergency contractor: Backup if primary unavailable
- National service: Last resort for true emergencies
Have these contacts saved and tested before you need them.
The Digital Advantage
Modern maintenance management software helps you:
- Track performance metrics automatically
- Store qualifications and insurance in one place
- Compare costs across contractors for similar jobs
- Automate job assignments based on availability
- Maintain communication history for accountability
With regulations moving towards mandatory digital records and SLAs, as outlined in New Regulations: What Landlords Must Track in 2026, digital tools turn your contractor network into a measurable, compliant asset rather than a collection of phone numbers.
This data-driven approach removes guesswork from contractor selection.
Your Contractor Network Checklist
✓ At least 2 plumbers with verified qualifications
✓ At least 2 electricians with Part P certification
✓ 2-3 general handymen for routine repairs
✓ All insurance certificates current and filed
✓ Emergency contacts tested and responsive
✓ Performance tracking system in place
✓ Payment processes streamlined
✓ Regular relationship maintenance (quarterly check-ins)
For a wider perspective on where contractor management fits into the bigger picture, read UK Property Maintenance Trends 2025 and see how professionalising maintenance can support your long-term strategy.
The Long-Term Payoff
A strong contractor network delivers compounding benefits:
- Faster repairs: Priority scheduling reduces tenant downtime
- Lower costs: Preferential pricing and reduced emergency callouts
- Better quality: Contractors who know your properties work more efficiently
- Compliance confidence: Qualified contractors reduce legal risks
- Tenant satisfaction: Professional service increases retention
Building this network takes time, but it’s one of the smartest investments a landlord can make. Start small, track performance, and gradually build a team you can trust.
If you want your contractor network plugged into a single source of truth for requests, SLAs, and documents, you can also join the Maintaro waitlist and be first in line when we launch.