Contractor Services
Why Contractors Trust Us
A team of cost experts dedicated to protecting your margins and winning more work.
At Costable, we know how competitive tenders can be. That’s why we provide contractors and subcontractors with fast, accurate costings — from full Bills of Quantities (BOQs) to labour, materials, prelims, and overheads, all delivered in days, not weeks.
We don’t just send you the numbers. Before submission, we talk through the full breakdown with you, highlighting risks, omissions, and opportunities to strengthen your bid. Our goal is to make sure your tender is competitive, realistic, and profitable, giving you the confidence to submit knowing nothing has been missed.
The Costable way: faster pricing, clearer margins, stronger tenders.
Which Option Is Right for You?
One-off Pricing
Best if you:
- Only need support on the occasional tender
- Want to test our service before committing
- Work on smaller projects or ad-hoc bids
With one-off pricing, you’ll always know your cost upfront, with full breakdowns and standard 3–5 day delivery.
Essentials
For projects up to £100k-
Full cost breakdown tailored to your project
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Bills of Quantities (BOQ) included
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Risk notes highlighting omissions & potential overspends
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Standard 3–5 day turnaround
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Optional fast-track (48h): +£300
Standard
For projects £200k–£600k-
Everything in Essentials, plus:
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Adjusted scope to match medium-sized projects
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Detailed materials & labour breakdown
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Clear reporting ready to submit with your tender
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Standard 3–5 day turnaround
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Optional fast-track (48h): +£300
Comprehensive
For projects up to £1m-
Full service for larger, more complex projects
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Detailed BOQ + full costed breakdowns
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Preliminaries & overheads included
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Highlighted risk register for commercial clarity
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Standard 3–5 day turnaround
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Optional fast-track (48h): +£300
Scope & Pricing Notice:
All prices are based on standard drawings and documentation typically required for the stated project size. If additional, complex, or bespoke requirements are provided — such as detailed specifications, multiple design options, or advanced schedules — we’ll review these and offer a bespoke quotation to reflect the expanded scope. Any change in fee or turnaround time will always be confirmed before work begins.
Retainer packages
Best if you:
- Regularly submit tenders each month
- Need faster turnaround and priority support
- Want predictable monthly costs to manage cash flow
- Prefer having a dedicated QS contact
With a retainer, you’ll save time, reduce stress, and increase your win rate with consistent, professional pricing support.
Starter
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For contractors with smaller, less frequent tenders
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Up to 2 tender submissions (projects up to £250k each)
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Standard 3–5 day turnaround
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Remote delivery, UK-wide
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Email support included
Pro
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For contractors pricing tenders regularly each month
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Up to 5 tender submissions (projects up to £500k each)
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Priority 2–3 day turnaround
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Dedicated remote QS contact
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Support with clarifications & queries
Elite
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For busy contractors working on larger or complex projects
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Up to 8 tender submissions (projects up to £1m each)
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Fast-Track 48h turnaround (when needed)
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Pre- and post-tender consultation
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Dedicated account manager & QS support team
Add-ons (any tier):
Extra tender: £400 each (up to £250k)
Fast-Track 48h delivery: +£300 per job
Want to see more?
Explore our YouTube channel for other Costable services — from quote reviews to full feasibility checks.
Contact us to get started
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