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Drain reliningYour sewer pipe as good as new, with no digging

With drain relining, your existing sewer pipe gets a new, seamless wall from the inside. Your garden, driveway and bathroom floor stay where they are, the work is usually done within a day and you get a 10-year guarantee on the relining.

Usually on site within 30 to 90 minutes
Available 24/7, including weekends
To industry standards, 2-year guarantee
Rate known in advance

+31 85 200 93 27 Request an appointment

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14+ years in business

24/7 emergency service

On site in 30 to 90 min.

42 certified engineers

Drain relining

Drain relining by certified drain engineers

Relining is the modern way to renew a sewer pipe without digging. The engineer pulls a flexible liner through the existing pipe. The liner is saturated with resin and cures inside the old pipe into a strong, smooth new inner pipe. Cracks, loose joints and light root ingress are sealed in one go. The result is a sewer that drains freely again, without a single paving slab or shrub having to move.

Bosmans works to KIWA BRL K10014 and always starts with a CCTV drain survey. That way you know exactly which sections of the pipe will be relined and why. Based on that footage you hear the price in advance, so there are never any surprises. Relining is suitable for house connections, soil stacks and horizontal pipes under floors, in homes, owners' association buildings and commercial premises. Bosmans gives a 10-year guarantee on every relining job.

+31 85 200 93 27

When to call us

Familiar situations

Recurring blockages

Does the same blockage keep coming back, even after drain jetting? There is often a crack, displaced joint or root ingress in the pipe. Relining makes the inner wall smooth again, so waste and paper flow through freely and your drain stays clear for good.

Cracks or loose joints on CCTV

Has a CCTV drain survey shown cracking, slight deformation or leaking joints? As long as the pipe is still in line, relining is the fastest route to a sealed, seamless pipe without a single spade in the ground.

Pipe under a floor, driveway or extension

Does the sewer pipe run under a paved driveway, a kitchen floor or an extension? With no-dig repair by relining, everything stays in place. Your garden, paving and interior stay intact and your home remains usable during the work.

Ageing clay or concrete pipe

Do you live in a home with an old clay or concrete house connection? Relining gives that pipe a new inner pipe with a smooth wall, so you can use your drains with peace of mind for years to come.

Our approach

How the engineer works

We work with an inspection camera, leak detection, spring cable and high-pressure equipment, in line with KIWA BRL K10014. You know in advance where you stand.

Rate

For drain relining you hear the price in advance, once the CCTV survey has shown which length and which approach are needed. For the survey, Bosmans charges a call-out from 45 euros and then work per hour, and you hear that rate before the engineer sets off too. You get a 10-year guarantee on relining and 2 years on other work.

+31 85 200 93 27

1
CCTV survey and measuring
The engineer surveys the pipe with a CCTV camera and codes the findings to NEN-EN 13508-2. He measures the diameter, length and bends, so the liner is made exactly to size.
2
Cleaning and cutting
The pipe is thoroughly cleaned with high-pressure jetting. The engineer cuts away roots, deposits and protruding parts, so the liner will sit tightly against a clean, smooth surface with no irregularities.
3
Impregnating the liner
The liner is saturated with resin on site. Its length and wall thickness are matched to the pipe, so the new inner pipe is strong enough for the load at that spot.
4
Inserting and curing
The liner is inserted through an inspection chamber or existing opening and pressed against the pipe wall. The resin then cures, depending on the system with heat, steam or UV light, into a strong, seamless pipe.
5
Reopening and final check
Side connections are reopened with a robotic cutter. Finally a second CCTV survey follows, so you can see with your own eyes that your sewer is seamless and clear. You receive this footage for your own records.

How drain relining works

With relining, no new pipe is laid in the ground; instead a new pipe is formed inside the old one. The liner usually consists of a felt or glass fibre tube with a layer of resin. Once the resin cures, a self-supporting inner pipe is created that uses the old pipe as a mould. Because there are no more joints, roots and debris have nothing to cling to. The diameter shrinks by only a few millimetres, which in practice makes no noticeable difference to drainage capacity. The wall thickness of the liner is also matched to the depth and load on the pipe.

There are several curing methods. Hot water and steam curing are widely used for longer runs, while UV curing is fast and easy to monitor. For short runs or a single crack, a patch repair with a short liner, known as a sleeve, may be enough. The engineer chooses the method based on the CCTV footage, the pipe material and access. That way every pipe gets the method that best suits the situation on site.

When relining is and is not the best choice

Relining is ideal when the pipe is still largely in line and mainly shows cracks, leaking joints, slight deformation or root ingress. It also works well for soil stacks in apartment buildings, because residents can stay in their homes during the work. The same goes for restaurants and commercial premises, which can simply stay open during the work. What decides it is what the camera shows: the condition of the pipe, the degree of deformation and whether the pipe still has the correct fall.

Suitable: cracking, loose or leaking joints, light root ingress, a rough or worn inner wall
Suitable: pipes under floors, driveways, extensions and in service shafts
Less suitable: a fully collapsed pipe or severe sagging with a backfall
Less suitable: a pipe so deformed that a liner can no longer pass through

With significant sagging or a collapsed pipe, replacement is usually the better choice. The engineer discusses this honestly with you after the survey. Sometimes a combination is the smartest choice: replacing a short section locally where the pipe has sagged and relining the rest of the run. That keeps digging limited to a single spot. Read more under sewer repair and replacement.

Relining costs: what the price depends on

The price of relining depends on the length of the run, the diameter, the number of bends and side connections, and how accessible the pipe is. A short house connection with a single crack calls for a different approach than a soil stack spanning several floors. That is why Bosmans only gives a price once the CCTV drain survey has shown what is needed. You get to see that footage too, so you understand what you are paying for.

Do not compare relining only with the price of a new pipe, but with the total. Breaking open adds the cost of restoring paving, garden, floor or tiling. With relining those costs fall away and the job is often done within a day. For an owners' association it also means residents can simply stay at home. On top of that comes the 10-year guarantee Bosmans gives on relining, so you know where you stand in the long term too.

Relining for owners' associations and businesses

In apartment buildings, soil stacks often run through every home. Replacing them means breaking open shafts and bathrooms. With relining, the engineer works from rodding eyes and the basement or crawl space, keeping disruption for residents to a minimum. The same applies to restaurants and commercial premises: business carries on. Bosmans coordinates the planning with the managing agent or board and supplies the CCTV footage afterwards for your records.

Related services

Also useful to know

CCTV drain surveySewer pipe repair and replacementSoil stack unblocking

Good to know

Frequently asked questions about drain relining

Is your question not listed? Feel free to call us, we will think along with you straight away.

+31 85 200 93 27

What does relining my sewer cost?

That depends on the length, diameter, bends and access. Bosmans first carries out a CCTV drain survey and then gives a fixed price in advance. You know exactly where you stand, including the saving on digging and restoration work that relining makes unnecessary.

How long does relining take?

An average house connection is often done within a day, including cleaning, inserting, curing and the final check. Longer runs or soil stacks spanning several floors may take more time. After the survey, the engineer gives you a realistic schedule.

Can I stay at home during relining?

Yes, you can. Nothing is demolished or dug up, so your home stays usable. Only during inserting and curing can you not use the drains on that run for a while. The engineer tells you in advance when that will be.

What guarantee do I get on relining?

Bosmans gives a 10-year guarantee on relining. Other work, such as unblocking or a repair, carries a 2-year guarantee. Afterwards you receive the CCTV footage of the final check, so you can show later on what condition the pipe was handed over in.

Is relining suitable for a cast iron soil stack?

In many cases, yes. Cast iron soil stacks in older apartments can become rough and worn on the inside. After thorough cleaning, a liner can form a new, smooth inner wall. The CCTV survey shows whether the pipe is still suitable for it.

Service area

Drain relining in your city

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Contact

A drain engineer straight away

For emergencies, call our 24/7 emergency line directly. For a non-urgent appointment, such as a CCTV drain survey or preventive jetting, you can also fill in the form. We will get back to you quickly.

+31 85 200 93 27

Emergency line available now

Drain reliningYour sewer pipe as good as new, with no digging

Drain relining by certified drain engineers

Familiar situations

Recurring blockages

Cracks or loose joints on CCTV

Pipe under a floor, driveway or extension

Ageing clay or concrete pipe

How the engineer works

CCTV survey and measuring

Cleaning and cutting

Impregnating the liner

Inserting and curing

Reopening and final check

How drain relining works

When relining is and is not the best choice

Relining costs: what the price depends on

Relining for owners' associations and businesses

Also useful to know

Frequently asked questions about drain relining

Drain relining in your city

A drain engineer straight away