The hardest hire in a boiler company is the second technician. Before that hire, the owner does everything. After it, the owner has to manage, train and trust someone else with customers they built personally. This guide covers when to make that hire, who to look for, how to recruit them, and how to keep them past the first winter.
It is a business guide, not legal advice. For employment standards, contracts and workplace safety obligations, check with your provincial authorities and an employment lawyer.
When to hire: use a trigger, not a feeling
Most owners hire when they are already exhausted, which means they hire in a rush, in winter, and train badly. Set a trigger in advance. Examples that work:
- You have pushed calls past 48 hours, or turned them away, for four weeks in a row.
- Your billable hours have been above 45 a week for two months.
- You have a backlog of maintenance visits for care-plan customers.
The arithmetic of waiting. Suppose you turn away 6 calls a week for 12 weeks of heating season, and an average first call bills $280. That is $20,160 of first-visit revenue lost, before counting the repairs, care plans and installs some of those customers would have bought. Many of them will now call a competitor first next year as well.
Experienced technician or apprentice?
Both can be right. The choice depends on what is limiting you.
| Experienced technician | Apprentice | |
|---|---|---|
| Pays back | Quickly, if work is waiting | Slowly, over two to four years |
| Cost | Higher wage, harder to find | Lower wage, training time from you |
| Risk | May leave for a bigger firm | May leave before fully trained |
| Best when | You are turning away paid work | You have steady maintenance work and time to mentor |
A practical pattern for many small companies: hire one experienced technician first to relieve the pressure, then add an apprentice who learns from both of you.
Certification: link to the source and let candidates check
Hydronic work spans several trades, and provinces set their own rules about which trades are compulsory. As of October 2026, the Red Seal trades list includes trades that boiler companies commonly hire from, such as Plumber, Steamfitter/Pipefitter, Gasfitter Class A and Class B, and Oil Heat System Technician. The Red Seal Program sets an interprovincial standard, while each province or territory runs its own apprenticeship system.
For example, Alberta's Tradesecrets list of compulsory certification trades includes Gasfitter Class A and Class B and Steamfitter-Pipefitter. In Ontario, Skilled Trades Ontario is the body for apprenticeship and certification. Our region pages link to the authority in each province and territory.
We do not interpret certification or scope-of-practice rules. In your job ads and careers page, link the official body and describe how your company supports the path: time off for school, who signs hours, and any help with exam costs you choose to offer.
Writing a job ad a good technician will read
Good technicians scan job ads in seconds. They are looking for answers to five questions:
- What will I work on? "Residential and light commercial hydronic systems, mostly gas-fired boilers and combis, some indirect water heaters" beats "HVAC service".
- Where? Name the towns. Drive time matters to them as much as to you.
- What does a week look like? Hours, on-call rotation, overtime, and whether the van goes home.
- Who will I learn from? Name the owner or lead technician and their background.
- What happens in three years? Show the training ladder.
Publish a pay range if you can. Ads with a range tend to attract candidates who already know the job fits.
A short template to adapt:
[Company name] is a [number]-person boiler and hydronic service company in [City]. We are hiring a [role] to service and repair [system types] across [towns]. You will work alongside [Name, role]. Schedule: [hours]; on-call [frequency]. You get [van, tools, training support]. Pay: [range]. Text [number] or email [address] with a few lines about your experience.
Where to find candidates
- Your own customers and suppliers. Supply-house counter staff know who is unhappy where they work.
- Referral program. Pay your current team a bonus when someone they refer stays past a set date, such as six months.
- Trade schools and apprenticeship programs. Build a relationship with instructors before you need someone.
- Job boards and social platforms used by trades in your region, with a tracked link back to your careers page.
- Your careers page. It is where every other channel sends people, so it has to be specific and current.
A training ladder that keeps people
People leave small companies when they cannot see a future there. A written ladder fixes that. A simple version:
| Level | What they do | What moves them up |
|---|---|---|
| Helper or first-year apprentice | Assists on maintenance and installs | Completes a set list of supervised tasks |
| Maintenance technician | Runs care-plan visits alone | Clean visit records and customer feedback for a set period |
| Service technician | Diagnoses and repairs no-heat calls | First-visit completion rate and callback rate targets |
| Lead technician | Handles complex systems and trains others | Mentors an apprentice successfully |
Tie each step to certification milestones where your province requires them, and to a pay step you set in advance. Show the ladder in every interview.
The first 90 days
- Week 1. Ride-alongs. The new hire watches how you talk to customers as much as how you work.
- Weeks 2 to 4. Supervised maintenance visits, then solo maintenance with a check-in call after each one.
- Months 2 and 3. Solo service calls in a defined area, with a weekly review of callbacks and parts used.
Measure two things: callback rate and customer feedback. They tell you whether the person is ready for more responsibility, and whether your training is working.
What a bad hire costs
Suppose you spend $2,000 on recruiting, pay $14,000 in wages over three months, and lose two care-plan customers and a few reviews before the person leaves. The direct cost is easily over $16,000, plus the time you spent training. That is why a clearer ad that attracts fewer, better applicants is worth more than a vague one that attracts many.
Recruiting is marketing
A boiler company competes for technicians the same way it competes for customers: by being specific, credible and easy to contact. If you would like help building the careers page, ads and training ladder, see technician recruiting. For broader HVAC recruiting marketing, our sister site HVACJobs.ca goes deeper. If you are still deciding when to hire, the business plan guide shows how to set the trigger.
Frequently asked questions
Should my first hire be experienced or an apprentice?
If you are turning away paid work now, an experienced technician pays back faster. If you have time to mentor and a steady base of maintenance work, an apprentice is often the more reliable long-term hire for a small company.
What should a hydronic technician job ad include?
The kind of systems you service, the area, the schedule including on-call, the van and tools, the training path, and a pay range if you are willing to publish one. Vague ads attract vague applicants.
Which certification does a hydronic technician need?
It depends on the province and the work. Gas, pressure-equipment and plumbing rules vary. Check your provincial apprenticeship authority and safety regulator; our region pages link to each one.
When should we start recruiting for winter?
Late spring and early summer, so the new person is trained and trusted before the heating season. Recruiting in December means training during your busiest weeks.
Sources
- Red Seal Program (2026-10-23)
- Red Seal Program: Red Seal trades list (2026-10-23)
- Tradesecrets (Alberta): Compulsory Certification Trades (2026-10-23)
- Skilled Trades Ontario (2026-10-23)