Plumbers often struggle to win tenders, even when they submit multiple quotes. You spend time preparing estimates, but the job goes to someone else—again and again. So, what can you do differently?
Winning plumbing tenders isn’t just about price. Builders and contractors look for reliable pricing, professionalism, and confidence in your ability to deliver the job. Here’s how you can stand out and increase your success rate.
Avoid Underquoting – It Can Cost You the Job
Many plumbers think a lower price wins tenders, but this isn’t always true. If your quote is too low, builders might assume:
🚩 You don’t understand the job and will need variations later.
🚩 Your pricing isn’t realistic, and you may struggle to complete the work.
🚩 You’ll cut corners, leading to potential delays and quality issues.
Instead of just going low, focus on accurate pricing—a price that is competitive but realistic. Builders want a plumber they can trust, not just the cheapest option.
Submit a Well-Structured, Professional Estimate
A messy or vague estimate reduces your chances of winning. Builders want clarity and transparency. A strong estimate should include:
✅ Clear breakdowns of material, labor, plant, and subcontractors
✅ Contingencies for unknown factors (e.g., difficult excavation conditions)
✅ Inclusions & exclusions, so there’s no confusion later
✅ A professional format, making it easy to read and compare
A detailed, well-structured quote increases trust and shows you know what you’re doing.
Build Strong Relationships with Builders & Contractors
Many tenders are awarded based on trust and past performance. If a builder has worked with you before and knows you deliver, you’ll have an advantage over competitors.
🔹 Follow up on past quotes – Ask for feedback, even if you didn’t win.
🔹 Keep in touch with builders – Show interest in future projects.
🔹 Deliver quality work – A good reputation leads to repeat business.
Winning tenders isn’t just about pricing—it’s about building a name that contractors trust.
Pay Attention to Tender Details – Don’t Miss Key Items
One reason plumbers lose tenders is because they miss important details in the scope of work. Builders want to avoid variation claims later, so they prefer estimates that are thorough and well-thought-out.
Before submitting a price, always check:
✅ Does the scope include excavation, backfilling, and reinstatement?
✅ Have you allowed for fire collars, core drilling, and elevated work platforms?
✅ Are you using the correct pipe sizes for fire services and water mains?
✅ Did you include all required fixtures and trade waste items?
When your estimate covers everything clearly, you reduce the risk of losing out to a more detailed competitor.
Follow Up on Every Tender – Don’t Just Submit & Wait
After sending your estimate, don’t sit back and hope—follow up! A simple phone call or email can make a big difference.
☎️ “Hi [John], just checking in on the tender for [Project Name]. Let me know if you have any questions or need any clarifications on my estimate.”
By following up, you:
✔️ Show that you’re proactive and professional
✔️ Get a chance to clarify any doubts they might have
✔️ Stay on their radar for future opportunities
Many plumbers lose jobs simply because someone else followed up first.
Final Thoughts
Winning plumbing tenders isn’t just about having the lowest price. Accurate pricing, a professional estimate, strong relationships, and good follow-up are what truly make a difference.
🟡 Need help preparing a detailed, competitive estimate? SNZ Plumbing Estimating provides accurate estimates to help you win more tenders without underquoting.