Will commercial roofing contractors Liverpool repair or replace my roof?

When deciding whether your commercial roof in Liverpool needs replacing or repairing, you’ll need to factor in the extent of any damage to your roof and figure out the most cost-effective solution. This is not a decision you should make alone – you’ll need to call a trusted commercial roofing contractors in Liverpool like us here at NWIR. We’ll conduct a commercial roof survey to get to the root of the problem. Once we’ve located the problem area, we’ll be able to provide you with a no-obligation quote for both options, so you can decide whether to repair or replace your commercial roof. It's frequently the case that general wear and tear issues can be rectified with a simple roof repair or some basic commercial roof maintenance. This could be as straightforward as replacing your leaf guards and removing any debris. However, if the problem is large scale damage, then commercial roof repair could be a better option. As a leading commercial roofing contractors in Liverpool, we have over 100 years of experience in the repair and replacement of commercial roofs. So, if you require ‘industrial roofing contractors Liverpool’ for any roof-related problems, give us a call on 0800 046 1500 to book an appointment for a commercial roof survey today.

How much do commercial roofing contractors Liverpool charge for a new roof?

As one of the largest and most important elements of your building, it’s understandable that commercial roofs can be costly. However, if the roof of your building has reached the end of its life and repair is no longer an option, you’ll need to be aware of the costs involved in hiring commercial roofing contractors in Liverpool for a roof replacement. Since there are many considerations when replacing a commercial roof, there is no set cost. To obtain an accurate quote, you can contact us to conduct a commercial roof survey. During the survey, we’ll assess the scale of the damage to see whether a full commercial roof replacement is necessary, or if a repair would be more cost effective. If replacement is the only option, we’ll take the following factors into account when calculating the cost of the work: • The size of the commercial roof • Accessibility of the roof • The materials that will be used • How long the work is likely to take • The complexity of the roof layout If you’d like a free, no-obligation quote from a leading commercial roofing contractors in Liverpool, give us a call today on 0800 046 1500. Alternatively, send us a message using the online contact form and we’ll be in touch as soon as possible.

What are the signs of damage to a commercial roof?

There are several signs that your commercial roof may be damaged. If you’re experiencing any of these issues, the best place to start is to call a reliable commercial roofing contractors in Liverpool like us here at NWIR. We’ll be able to give you some advice on what to look for when it comes to signs of damage to your roof. Some things to look out for include: Feeling a draught – If your workplace is feeling draughty, it could be a sign of lifting and damage to your roof tiles. Stains on the walls, ceilings, or floors of your commercial premises – These are often caused by damp permeating through the roof. Any obvious leaks – This is a clear sign of damage to your commercial roof and can lead to further problems like mould if not dealt with quickly. Issues with guttering – If your gutters are blocked or broken, this can cause problems with ponding water on your roof. An unpleasant smell – If you’ve noticed a bad smell in your premises, and you can’t locate the source, contact a commercial roofing contractors in Liverpool to take a look at your roof. This is because mould and damp insulation can frequently be the cause of odours. Damage to commercial roof flashing – If your flashing is damaged, it won’t provide your premises with protection from water damage. It’s important to check for any peeling or rusting, and if you do spot any problems, don’t hesitate to give us a call. Our commercial roofing contractors in Liverpool are more than equipped to not only give you advice, but also repair or replace your commercial roof. If you’re experiencing any of these problems with your roof, contact the team at NWIR today. As a leading commercial and industrial roofing contractors in Liverpool with over 100 years’ experience, we are the go-to solution for any of your roof-related concerns – no matter how big or small.

Commercial Roofing Contractors Liverpool

Survey-led roof repairs, refurbishment and replacement for commercial and industrial buildings across Liverpool and Merseyside, carried out by NFRC members accredited under CHAS and Constructionline.

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Expert commercial roofing in Liverpool

If your roof has been patched more than once and still leaks, the repair has probably treated the symptom rather than the cause. On a large commercial or industrial roof, water can get in at one point and track through the build-up before it appears as a stain somewhere else.

At NWIR, we are commercial roofing contractors and industrial roofing contractors working across Liverpool and Merseyside from our base in Warrington. Every job starts with a survey, so the repair, refurbishment or replacement we recommend is based on what is actually wrong with your roof.

Our surveyors use electronic leak detection, moisture scanning and core sampling to find the fault.

Sectors we work in across Liverpool and Merseyside

Different buildings fail in different ways, and the work has to fit around whatever happens underneath the roof. These are the sectors we work with most often.

Warehousing and logistics. Wide-span roofs with long gutter runs and ageing rooflights, where a leak can damage stock long before anyone sees it. Read more about our warehouse roofing work.
Manufacturing and production. Roofs over live production lines, where the work has to be planned around shifts and kept clear of the operation below, as on our Halewood International project in Merseyside.
Retail. Store and retail park roofs that need repairing without closing to customers. See our retail roofing page and the Wickes case study.
Education. School and college roofs, where noisy or disruptive work often has to fit around term times. See our education roofing page and the Home Farm School project.
Commercial property and offices. Planned refurbishment for landlords and estates teams managing several buildings, such as our work for Bruntwood Estates.
Data centres and public sector buildings. Projects where downtime is not an option, including a data centre roof refurbishment and a local authority housing project.

Commercial and industrial roofing services in Liverpool

The right work depends on what has gone wrong, how much life your roof has left and whether your building needs to stay open while we complete the work. Here is how we work and what we do in different situations:

Finding out what is wrong

A commercial roof survey gives you the condition of your roof and a cost recommendation for putting it right. Where the source of a leak is unclear, electronic leak detection and moisture scanning show where water is getting in and how far it has spread into the insulation, and a moisture probe survey confirms the readings. Because we run our own fleet of high-level access equipment, a MEWP roof survey lets us assess most roofs without putting up scaffolding.

Repairing what has failed

Flat roofing repairs deal with splits, blistering and failed seams in felt and single ply membranes. On profiled metal roofs, cut edge corrosion is treated before the rust spreads further along your sheet laps. Corroded valley gutters that have already been patched several times can be relined with a gutter lining system rather than repaired again.

Extending the life of an existing roof

If the structure is sound but the covering is worn, you do not always need a full strip and re-roof. Liquid-applied roofing seals a whole flat roof in one continuous membrane, and cladding coatings restore weathered metal sheets on roofs and walls. Older asbestos cement sheet roofs can often be over-clad with a new roof cladding system, and our asbestos overcladding page explains how that keeps the existing sheets sealed in place rather than disturbed.

Replacing a roof that has reached the end of its life

When your survey shows the covering is beyond saving, we install felt roofing systems, single ply membranes and metal roofing, along with metal cladding and wall cladding where the walls need replacing too. Because we’re approved by the manufacturers of these systems, a new roof can carry a single point guarantee.

Keeping your roof watertight afterwards

Planned roof maintenance picks up blocked gutters, ponding water and failing seals while they’re still cheap to fix, and a planned maintenance programme lets you budget for roof work instead of reacting to leaks. For clients with several buildings in Liverpool and beyond, we also provide reactive maintenance to agreed SLA response levels. We can install safety lines too, so anyone who needs to work on your roof in future can do so safely.

When to book a roof moisture scan

Most clients come to us at one of four points, when the cost of guessing what is wrong with the roof starts to outweigh the cost of finding out.

A leak keeps coming back after repair. The scan shows how far the water has travelled, so the next repair deals with all of the wet area rather than just the visible one.
Your roof is due for refurbishment. Knowing which areas are wet tells you whether parts of the existing roof can stay in place or need to be stripped.
You are setting maintenance budgets. Evidence of the roof’s condition lets you plan spending instead of reacting to the next leak.
You are buying, selling or leasing a building. A scan gives you the roof’s real condition before you agree on a price or sign a lease.

From scan to targeted repair

Because we are both a roof surveying company and a roofing contractor, the quote that follows your survey is a full project costing, including the access and health and safety requirements of the job. When only part of your roof is wet, the work can be limited to those areas through flat roofing repairs rather than a full replacement.

Materials are installed by manufacturer-approved operatives, and new roofing can carry a single point guarantee of between 10 and 25 years, depending on the project.

Accredited roof surveyors and contractors

We are members of the National Federation of Roofing Contractors (NFRC) and accredited under CHAS and Constructionline. You can see the full list on our awards and accreditations page.

Other roof surveys and diagnostics

A moisture scan tells you where your roof is wet, but it is not always the best tool for finding where water gets in. Electronic leak detection locates leaks in most types of waterproofing membrane, while a commercial roof survey assesses the overall condition of your roof. You can see every method we offer on our roof surveys and diagnostics page.

Book a free roof survey

If you suspect water is trapped in your roof, finding out how far it has spread is the first step towards fixing only what needs fixing. Book your free site survey, and we will recommend the right scan for your building.

Call us on 0800 046 1500, Monday to Friday, 9am to 5pm.

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Roof moisture scan FAQs

Does infrared detect moisture in a flat roof?

Infrared doesn’t detect moisture directly, but it does detect the temperature differences that moisture creates. On many flat roofs, wet areas hold heat for longer than dry ones and show up clearly on a thermal camera. Where heat sources or a chipping finish could distort those readings, we use capacitance scanning instead.
How accurate is a roof moisture scan?
What is roof moisture mapping?
Can a moisture scan find where a roof is leaking?
When is capacitance scanning used instead of infrared?
Will a scan disrupt our building?

Roofing contractors for Liverpool, Merseyside and the North West

As commercial and industrial roofing contractors, we work on roofs across Liverpool and the wider Merseyside area, including Knowsley, Sefton, St Helens and the Wirral, from our base on Taylor Business Park in Warrington. That covers city centre offices and retail units as well as warehouses, factories and industrial units on the estates around Speke, Kirkby and Bootle.

If you manage buildings outside Merseyside as well, we work UK-wide from offices in Warrington, Glasgow, Newcastle, Birmingham, London and Anglesey, so one contractor can look after your whole estate. For specific services in the city, see our pages on metal cladding in Liverpool, roof maintenance in Liverpool and asbestos overcladding in Liverpool.

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Should I repair or replace my commercial roof?

It depends on how much of the roof has failed and how much life the rest of it has left, which is what a survey establishes. A roof with localised damage and a sound covering is usually best repaired or coated. If the damage is widespread, the roof keeps leaking after repair, or the covering is past its service life, a full roof replacement or over-cladding is normally the more economical choice. After your commercial roof survey, we can quote for both so you can compare them.
How much does a commercial roof cost in Liverpool?

There is no fixed price, because the cost depends on the size of the roof, the system being installed, how easy it is to access and how much of the existing roof has to be stripped. Whether your building needs to stay open during the work also affects how it is phased. A free survey gives you an accurate, cost recommendation for your specific roof rather than an estimate per square metre.
What are the signs that a commercial roof is failing?

The obvious one is water coming through, but on a commercial or industrial roof you will often see other warning signs first. Look for staining on ceilings and walls, standing water on flat roofs after rain, rust along the edges of metal roof sheets, cracked rooflights, gutters that overflow inside the building and damp or musty smells. Staining often appears some distance from where the water actually enters, which is why electronic leak detection is useful before any repair is specified.
Can you work on our roof while the building stays open?

Repairs, coatings and gutter work can usually go ahead while your building operates as normal, and our own high-level access means many surveys and repairs need no scaffolding at all. Larger replacements can be phased so that only part of the building is affected at a time.
Our roof is asbestos cement. What are our options?

Do not disturb it or go up to inspect it yourself, because asbestos cement roofs must be managed under the Control of Asbestos Regulations 2012. In many cases, the safest and most cost-effective option is asbestos overcladding, which seals the existing sheets under a new roof rather than removing them. Where removal is needed, it is carried out by appropriately qualified specialists before the new roof goes on.
Do you offer free roof surveys in Liverpool?