Struggling to Price Your Tender? Get Fast, Accurate Cost Support, Without Risking Your Margin.

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Why Contractors Choose Costable

A team of cost experts dedicated to protecting your margins — without the cost of full‑time staff.

At Costable, we know how competitive tenders are. That’s why we provide contractors and subcontractors with fast, accurate costings — from full BOQs to labour, materials, prelims, and overheads, all delivered in days, not weeks.

We don’t just send you numbers. Before submission, we walk through the full breakdown with you, highlighting risks, omissions, and opportunities to strengthen your bid. The result: tenders that are competitive, realistic, and profitable.

The Costable way: faster pricing, clearer margins, stronger tenders.

Request a Free Tender Review

For Contractors Under Tender Pressure

Contractors don’t lose tenders because they can’t build, they lose them because pricing is rushed, unclear, or based on guesswork. If you’re under pressure to submit a competitive, realistic tender quickly, this is where we help.

Common challenges we solve:

  • Struggling to price a tender accurately

  • Worried about underpricing and losing margin

  • Need a BOQ or cost breakdown fast

  • Want a second pair of eyes before submitting

  • Need commercial support but not a full‑time QS

Choose the package that fits your project and get pricing support within days, giving you professional tender support without the overhead of permanent staff.

Essentials

For projects up to £100k
£ 499
  • Full cost breakdown tailored to your project
  • Bills of Quantities (BOQ) included
  • Risk notes highlighting omissions & potential overspends
  • Standard 3–5 day turnaround
  • Optional fast-track (48h): +£300
Request This Package

Standard

For projects £200k–£600k
£ 599–999
  • Everything in Essentials, plus:
  • Adjusted scope to match medium-sized projects
  • Detailed materials & labour breakdown
  • Clear reporting ready to submit with your tender
  • Standard 3–5 day turnaround
  • Optional fast-track (48h): +£300
Request This Package
Popular

Comprehensive

For projects up to £1m
£ 1,199
  • Full service for larger, more complex projects
  • Detailed BOQ + full costed breakdowns
  • Preliminaries & overheads included
  • Highlighted risk register for commercial clarity
  • Standard 3–5 day turnaround
  • Optional fast-track (48h): +£300
Request This Package
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

  • Want the benefits of an in‑house QS without hiring full‑time staff

With a retainer, you’ll save time, reduce stress, and increase your win rate with consistent, professional pricing support. We’ll review your pipeline and confirm the best fit — no obligation

Starter

£ 699 /Month
  • For contractors with smaller, less frequent tenders
  • Up to 2 tender submissions (projects up to £250k each)
  • Standard 3–5 day turnaround
  • Remote delivery, UK-wide
  • Email support included
Get Started with Monthly Support

Pro

£ 1,499 /Month
  • For contractors pricing tenders regularly each month
  • Up to 3 tender submissions (projects up to £500k each)
  • Priority 2–3 day turnaround
  • Dedicated remote QS contact
  • Support with clarifications & queries
Get Started with Monthly Support
Most Popular

Elite

£ 2,499 /Month
  • For busy contractors working on larger or complex projects
  • Up to 3 tender submissions (projects up to £1m each)
  • Fast-Track 48h turnaround (when needed)
  • Pre- and post-tender consultation
  • Dedicated account manager & QS support team
Get Started with Monthly Support

Add-ons (any tier):

Extra tender: £400 each (up to £250k)

Fast-Track 48h delivery: +£300 per job

Featured video

Want to see more?

Explore our YouTube channel for other Costable services — from quote reviews to full feasibility checks.

Contact Us

Send Your Tender or Drawings for Review
What Happens Next

  1. We review the information you send and confirm the scope.

  2. You receive a clear fee proposal based on your project size and requirements.

  3. Once the fee is approved and payment is made, we begin the full cost breakdown.

  4. You receive a detailed, tender‑ready costing with risks, omissions, and margin exposures highlighted.

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