The moment when a roofing business transitions from one person to two is one of the most important and most anxiety-inducing decisions a sole trader makes. Hire too early and you're paying a wage out of reserves when there isn't enough consistent work to justify it. Hire too late and you're exhausted, declining good jobs, and leaving money on the table every week.
Most roofing contractors feel the pull to hire long before the numbers actually support it — and most wait longer than they should out of fear of the responsibility that comes with employing someone. This guide cuts through both tendencies and gives you a clear, numbers-based framework for deciding when to hire, what it will actually cost, what your legal obligations are, and what the alternative of using subcontractors looks like in practice.
The Signals That Tell You It's Time
The decision to hire should be driven by evidence, not anxiety or ambition. Here are the clear signals that indicate genuine readiness — and the signals that suggest you're not there yet.
You're turning away good work regularly
If you're declining two or more jobs per week because you simply don't have the capacity to attend or complete them, and those jobs would be profitable — you have a demand problem that only capacity solves. Every declined job is revenue going to a competitor.
Your diary is consistently booked 4+ weeks ahead — not just in peak season, but year-round across multiple consecutive months. This indicates structural demand rather than a seasonal spike.
Diary consistently 4+ weeks booked ahead
Your revenue has been stable for 12+ months
A single good quarter doesn't justify hiring. Twelve consecutive months of consistent turnover above £100,000–£120,000 indicates the business can support a first employee with margin remaining for the business owner.
Customers are waiting too long — and saying so
When you're losing customers to competitors not because of price or quality but purely because of wait times, and when customers are explicitly saying "I'd have used you but you couldn't fit me in," capacity is your binding constraint.
You can't take emergency or time-sensitive jobs
Emergency roof repairs are often the highest-margin jobs and the best-reviewed customers (they're grateful). If you're always too booked to attend emergencies, you're missing a disproportionate share of value — and your Google profile misses those glowing reviews.
You're physically and mentally exhausted
Running at 100% capacity on the tools every day, managing all the quoting, invoicing, and customer communication yourself, and having no capacity to work on the business (marketing, planning, pricing) is a sign that the business is running you — not the other way around. That trajectory leads to poor decisions and burnout.
It's been a good few months but revenue is unpredictable
Three good months do not justify a permanent hire. If you can't forecast consistent revenue for the next 12 months with reasonable confidence, the cashflow risk of a wage commitment is too high. Consider subcontractors for the current busy period instead.
You want to hire to grow — before you have the work
Hiring speculatively to "grow into" the capacity is high risk in a small roofing business. Demand should lead supply, not the other way round. Build the work volume first, then hire to service it.
You're turning away work only in peak season
Summer peak demand does not justify a year-round employment cost. If the busy period is 3–4 months and the rest of the year is quieter, subcontractors during the peak period are the appropriate solution — not a permanent hire that creates a winter wage burden.
Your net profit margin is under 20%
A hire adds £32,000–£45,000 in annual employment costs. If your net margin is already thin, absorbing this without a corresponding revenue increase will put you in loss. Get your own pricing and margin right before adding headcount.
What a First Employee Actually Costs: The Full Picture
Most roofing contractors significantly underestimate what an employee costs. The salary figure is just the beginning — the true employment cost includes several additional obligations that are mandatory and non-negotiable.
True Annual Cost of Employing a Roofer in 2026 — Example
This means your first employee needs to generate approximately £85,000–£110,000+ in additional revenue (at a 35–40% gross margin) before they're adding net profit to the business rather than just covering their own cost. That's the financial hurdle that must be cleared.
Employee vs Subcontractor: Which Is Right for Your Stage?
Before committing to a permanent hire, most roofing businesses benefit from a transitional period using trusted subcontractors. Understanding the genuine trade-offs helps you choose the right arrangement for your current stage.
⚒️ Subcontractor arrangement
- No PAYE, no pension, no employment rights obligations
- Only pay when there's work — no cost in quiet periods
- Lower financial risk — test demand before committing
- May not be available when you need them urgently
- Quality consistency harder to maintain
- They're building their own business, not yours
- CIS (Construction Industry Scheme) deduction obligations if paying gross above threshold
👷 Permanent employee
- Reliability — they show up, full stop
- Invested in your brand, quality, and reputation
- Can be trained to your exact standards and methods
- Available for emergency call-outs and short-notice jobs
- Builds your capacity in a sustainable, scalable way
- Full employment cost regardless of business volume
- Legal obligations: PAYE, pension, statutory rights, contracts
The typical progression for a growing roofing business looks like this: sole trader working alone → using occasional subcontractors for large jobs → consistent subcontractor relationship with one or two trusted subbies → permanent first employee hire when the numbers support it. Most businesses spend 12–24 months in the subcontractor phase before the first permanent hire makes financial sense.
Your Legal Obligations When You Hire Your First Employee
Becoming an employer for the first time triggers a set of mandatory legal obligations. These are not optional — failure to comply carries financial penalties and in some cases criminal liability.
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1Register as an employer with HMRC
Do this at gov.uk/register-employer before your employee's first payday — not after. You'll receive a PAYE reference number and an Accounts Office reference that you'll use for all payroll submissions.
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2Check your employee's right to work in the UK
Before employment begins, check and retain a copy of documents confirming the employee's right to work in the UK (passport, visa, biometric card). This is a legal requirement — failure to comply can result in a civil penalty of up to £60,000 per illegal worker.
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3Provide a written statement of employment particulars
A written employment contract (or statement of written particulars) must be provided on or before the first day of work. This must cover at minimum: job title, pay, hours, holiday entitlement, notice period, and sick pay terms. Templates are available from ACAS and the CIPD.
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4Set up PAYE payroll
Use HMRC-compatible payroll software (many free options exist including HMRC's Basic PAYE Tools) to calculate and deduct income tax and National Insurance from wages each pay period. Submissions must be made to HMRC in real time (RTI) on or before each payday. Alternatively, an accountant or payroll bureau can manage this for £20–£50 per month.
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5Auto-enrol eligible employees into a workplace pension
Workers aged 22–66 earning above £10,000/year must be auto-enrolled in a qualifying workplace pension. You must contribute a minimum of 3% of qualifying earnings; the employee contributes 5%. NEST is the government-backed provider and is free for small employers to use.
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6Update your employer's liability insurance
Employer's liability insurance is a legal requirement the moment you have any employee. Minimum cover is £5m. Notify your insurer before the employee starts. The fine for operating without EL insurance starts at £2,500 per day.
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7Carry out a health and safety induction
As an employer you have a duty of care for your employee's health and safety at work. Conduct a formal induction covering: working at height procedures, PPE requirements, RAMS for standard jobs, emergency procedures, and first aid arrangements. Keep a written record that this was completed.
How to Find and Recruit the Right Person
Hiring the wrong person in a small roofing business is significantly more damaging than hiring no one. A poor-quality hire affects every job they touch, your customer reviews, and your own time — as you end up managing and correcting their work instead of gaining capacity.
| Recruitment Route | Cost | Best For |
|---|---|---|
| Word of mouth / personal network | £0 | Best results — you already know their character and work quality |
| Indeed.co.uk job posting | £0–£150 (sponsored) | Volume of applicants — good for filtering to find the right person |
| Local Facebook trades groups | £0 | Good for finding local tradespeople — post in regional trade groups |
| NFRC job board | Member rate (~£50) | Candidates who are already in the professional roofing community |
| Local college / training provider | £0 | Apprentices — longer runway but lower cost and high loyalty |
| Recruitment agency (trades specialist) | 10–15% of first year salary (£3,000–£5,000) | When speed is critical and budget allows — reduces your screening burden |
When interviewing candidates, practical demonstration matters far more than CV credentials in roofing. Consider asking candidates to complete a half-day trial on a real job (paid at day rate) before committing to a contract. This reveals work rate, attitude, quality, and how they interact with customers in a way no interview question can match.
Making the Hire Work: The First 90 Days
Hiring someone is just the beginning. The first three months determine whether the hire succeeds or fails — and the responsibility for making it work lies almost entirely with you as the business owner.
- ✓ Set clear expectations from day one — your standards for quality, timekeeping, customer communication, and site cleanliness
- ✓ Work alongside them on the first few jobs — show, don't just tell, how you want things done
- ✓ Give regular feedback in the first month — quick, specific, real-time feedback beds in standards faster than annual reviews
- ✓ Make them feel invested in the business — share context on the business, how it's growing, what you're building
- ✓ Build their route to growth — what does progression look like for them in your business? People who can see a future stay longer
- ✓ Check in on wellbeing — roofing is physically demanding work. A new employee who feels seen and valued will outperform one who feels like just a pair of hands
- ✓ Address performance issues early and in writing — if standards slip, deal with it promptly and document the conversation. Ignoring performance issues makes them harder to resolve legally if they escalate
Frequently Asked Questions
When should a roofing contractor hire their first employee?
The clearest signal is consistent demand that exceeds your capacity — you're turning away good jobs regularly, your diary is consistently booked 4+ weeks ahead, and your revenue has been stable above £100,000–£120,000 for at least 12 months. The right time is when your revenue can comfortably cover the full employment cost (typically £34,000–£45,000 per year including all on-costs) with margin remaining, and when you have enough work visibility to be confident the volume will sustain through quiet periods.
How much does it cost to employ a roofer in the UK?
Employing a qualified roofer typically costs £34,000–£45,000 per year in total employment costs — covering salary, employer's National Insurance (13.8% on earnings above the threshold), pension contributions (minimum 3% employer contribution), employer's liability insurance uplift, and payroll administration. This is significantly more than the gross salary figure, which is why the true employment cost must be carefully modelled before hiring.
Should a roofing contractor hire an employee or use a subcontractor?
This depends on the nature and consistency of the work. A trusted subcontractor is lower risk — no employment obligations, no PAYE, and you only use them when needed. The disadvantage is availability, variable quality, and the fact they're building their own business rather than yours. Most roofing businesses use subcontractors for 12–24 months before making a first permanent hire, transitioning to employment when the consistent volume justifies the ongoing cost commitment.
What legal obligations does a roofing contractor have when hiring their first employee?
When you hire your first employee in the UK you must: register as an employer with HMRC and set up PAYE; confirm their right to work in the UK; provide a written statement of employment particulars on or before their first day; auto-enrol eligible employees in a workplace pension; hold employer's liability insurance (legally required, minimum £5m); comply with the National Minimum Wage; and provide at least 5.6 weeks statutory paid holiday per year.
What is the difference between an employee and a subcontractor for tax purposes?
HMRC applies specific tests to determine whether a working arrangement is genuinely self-employed or is employment in disguise. Key factors include: whether the worker must personally carry out the work; whether you control how, when, and where they work; whether they take financial risk; and whether they work exclusively for you. Misclassifying an employee as a subcontractor carries significant HMRC penalties including backdated PAYE and NI contributions. Take proper legal advice if uncertain about the status of someone working regularly with you.
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