4+ years of perfection in every project.
With a presence in 50+ global locations.
Plumbing systems are a vital building service requiring precision planning, regulatory compliance, and disciplined cost management. From domestic plumbing layouts to complex commercial and industrial systems, reliable estimating is essential to avoid costly surprises, inspection failures, and schedule delays.
COMET Estimating provides end to end plumbing estimating services throughout the UK, supporting contractors and developers at every project stage. Our estimators analyse drawings, layouts, riser diagrams, specifications, fixtures, testing requirements, and installation methods to produce realistic, buildable plumbing cost plans.
Our approach helps you maintain cost certainty, protect profit margins, and deliver plumbing works safely, efficiently, and on programme.
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Years of
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Partner with a team committed to delivering accurate, on time plumbing estimates you can trust.
Best Rating in your town in estimating business
Whether your project involves a small residential installation or a complex industrial plumbing system, COMET Estimating provides fully detailed plumbing cost estimates that support financial control from planning to completion.
Cost estimates for residential properties including water supply, drainage, vent systems, fixtures, and internal plumbing connections, with clear labour and material breakdowns.
Accurate estimates for offices, retail premises, and multi storey buildings, accounting for coordination requirements, fixture counts, and compliance obligations.
Detailed estimates for factories, warehouses, and industrial plants, including process piping, heavy duty fixtures, and system complexity.
Estimates for renovations, rerouting, fixture replacements, and system upgrades while minimizing disruption to existing structures.
Cost planning for below ground services such as water mains, sewer lines, sleeves, and penetrations, including excavation considerations.
Estimates covering pressure testing, inspections, approvals, and commissioning to ensure fully compliant plumbing systems.
Our plumbing estimating services support a wide range of construction professionals involved in projects of all sizes.
We follow a structured process to deliver fast and dependable plumbing cost estimates.
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Share plumbing drawings, layouts, specifications, riser diagrams, and scope notes.
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Our estimators prepare an initial cost assessment covering materials, labour, fixtures, installation methods, and testing.
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We revise the estimate based on feedback, ensuring complete alignment with your scope.
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Receive a detailed, line by line plumbing estimate ready for tendering, budgeting, or client submission.
COMET Estimating supports plumbing contractors and developers with accurate, transparent, and dependable cost estimates that enable confident budgeting and tendering.
Hands-on expertise across residential, commercial, and industrial plumbing systems.
Clear communication, revisions, and guidance throughout the estimating process.
Itemised estimates with precise quantities and no hidden assumptions.
Estimates delivered within agreed timeframes to meet tender deadlines.
Let COMET Estimating bring structure, clarity, and control to your plumbing project. Our detailed take offs and cost evaluations support smarter planning, stronger bids, and improved profitability across UK construction projects. Whether you are pricing a small residential scheme or a complex commercial or industrial development, our estimating team ensures you start with accurate data and realistic cost expectations.



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Missing labour allowances, fittings, or materials can quickly push plumbing costs beyond budget.
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Material shortages and incorrect scheduling slow down plumbing works and disrupt overall site progress.
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Incorrect sizing or incomplete planning affects water pressure, drainage efficiency, and long term system reliability.
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Over ordering increases waste, while under ordering causes delays and emergency purchases at higher rates.
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Missed inspections or regulatory requirements may result in rework, failed approvals, and additional costs.
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Budget overruns and missed deadlines damage professional credibility and future opportunities.
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Delivered
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Projects
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of Experience
COMET Estimating is trusted by contractors and developers across the UK for accurate, transparent, and cost effective plumbing estimating services. Our consistent focus on precision helps clients control budgets, reduce risk, and deliver plumbing projects with confidence.
If you need dependable plumbing cost estimates in the UK, COMET Estimating is ready to support you. Contact us today and receive 30% off your first order. Our experienced estimators help you plan better, bid smarter, and deliver plumbing projects with confidence.
30 Riverhead Close, London, Walthamstow, England, E17 5PY
Monday - Friday
09:00 Am Until 05:00 PM