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Replace drainage pipework.
Open-cut or no-dig replacement — cast iron, clay or pitch fibre swapped for modern uPVC drainage.
✓ Updated May 2026✓ Free quotes✓ Vetted pros
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Costs, timelines, pitfalls and the right questions to ask before any drain specialist starts on drainage Pipe Replacement.
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Surface reinstatement costs
Driveway/garden recovery costs £30-£100/m extra. Always confirm scope.
Disposal of old pipe
Clay pipe and bedding need waste contractor. Add to cost.
Tree roots in adjacent pipes
Roots remain even after replacement. Address surrounding pipes too.
Inadequate fall
Old pipe had wrong fall. New pipe must drain correctly. 1:80 minimum for foul.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and what affects price.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
PVC drain pipe per metreMaterial only
£20–£50
Excavation per metrePlus disposal
£60–£150
Replacement per metre fittedIncluding reinstatement
£100–£250
Deeper than 1.5m per metrePremium for depth
£200–£400
Standard 10m replacement totalIncluding reinstatement
£1k–£3.5k
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
Infographic · VideoThe Drain Specialist briefing.
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Drain Specialist explained
Old clay pipes crack and collapse. Replacement may be needed when lining isn't viable. Expect to pay £100–£400 per metre for UK drainage pipe replacement, depending on depth and surface reinstatement.
What Does the Work Involve?
Drainage contractor digs trench above pipe (1m+ deep typically). Old pipe removed. New PVC or HDPE pipe laid. Bedded in gravel/sand. Connections to manholes and existing pipes formed. Trench backfilled. Surface reinstated (concrete, tarmac, paving).
Typical Costs
| Item | Low (£) | High (£) | Notes |
|---|---|---|---|
| PVC drain pipe per metre | 20 | 50 | Material only |
| Excavation per metre | 60 | 150 | Plus disposal |
| Replacement per metre fitted | 100 | 250 | Including reinstatement |
| Deeper than 1.5m per metre | 200 | 400 | Premium for depth |
| Concrete driveway reinstatement | +£40 | +£100 | Per metre surface |
| Tarmac reinstatement per metre | +£30 | +£80 | Driveway |
| Standard 10m replacement total | 1,000 | 3,500 | Including reinstatement |
How Long Does It Take?
10m pipe replacement: 2-4 days. Larger projects: 1-2 weeks.
DIY or Professional?
Specialist drainage contractor only. NADC member. Insurance-backed warranty.
Choosing the Right Tradesperson
NADC member. Excavation and drainage specialist. 10-year warranty on workmanship.
UK Regulations
Building Regs Part H. Water authority approval for sewer connections. Excavation safety. CDM 2015 for larger projects.
Common Problems
- Surface reinstatement costs: Driveway/garden recovery costs £30-£100/m extra. Always confirm scope.
- Disposal of old pipe: Clay pipe and bedding need waste contractor. Add to cost.
- Tree roots in adjacent pipes: Roots remain even after replacement. Address surrounding pipes too.
- Inadequate fall: Old pipe had wrong fall. New pipe must drain correctly. 1:80 minimum for foul.
Frequently Asked Questions
Replacement vs lining?
Lining for cracked but intact pipe. Replacement for collapsed, severely damaged, displaced. Get options compared.
How long do PVC drains last?
50+ years for quality PVC. Lasts longer than original clay (which was 50-100 years).
Disruption to garden/driveway?
Significant — excavation digs up surface. Reinstatement adds to cost. Lining avoids this if applicable.
Cost of including manhole replacement?
+£500-£2,500 per manhole. Brick manholes expensive; plastic chambers cheaper.
Will insurance pay?
Sometimes — if damage caused by insured event (subsidence, storm). Maintenance issues: rarely.
How deep is typical drain?
Domestic: 600-900mm. Below frost line for UK. Industrial deeper.
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
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