Rubber Roof Cost Guide

In this rubber roof cost guide we explore how much it costs to install a new rubber roof, as well as provide suggestions for other expenses you might want to consider and change the final rubber flat roof quotation prices. We’ll also give advice on the queries you ought to put to a rubber roof installer and demonstrate how to employ one.

Rubber Roof Cost

We’ll conclude by responding to some frequently asked questions.

How much does a rubber roof cost?

Single garage

Rubber roofing for a single garage typically costs £940. Material and labour expenditures are usually split 55% to 45%. Two installers working a full day is the basis for the labour charges for this project.

Installation on an existing roof with decking boards in good condition will cost the amount listed below. If new roof boards are required, the cost will go up. The price to replace each board will be about £50. 

The cost to replace the whole roof decking will be between £300 and £400.

Double garage

A double garage rubber roof replacement typically costs £1,500. Materials and labour costs are roughly divided by 60% to 40%. Based on two tradesmen working for around a day and a half, the labour expenses.

Installation on an existing roof with decking boards in good condition will cost the amount listed below. You’ll spend more if roof planks need to be replaced. The price to replace each board will be about £50.

The entire roof decking replacement cost will range between £600 and £800.

Why install rubber roofing?

Although there are many different styles and textures that may be used to make residential roofs, funcrtionality is far more crucial than aesthetics. 

Although they are sometimes disregarded, roofs shield our homes from the elements, wild animals, and other dangers. As a result, they are an essential component of any building. 

Rubber roofs may not be the most appealing option, but the variety of advantages they offer more than makes up for this. 

Rubber roofing, which is frequently used on flat roofs, requires little maintenance and, with proper care, can endure for more than 50 years. Rubber roofs are an excellent substitute for felt roofing since they are watertight, moss and algae proof, and they are simple to fix. 

A rubber roof has another significant advantage over other solutions in that it is produced in an extremely environmentally friendly manner. 

In fact, your rubber roof can even be recycled once you’re done with it! Rubber roofs are a smart choice for any home when you consider its ability to withstand fire and lightning.

Factors affecting rubber roof cost

The Condition of the Sub-base

Before installing the rubber, the sub-base must be flat and smooth. It will need to be fixed if it isn’t in good shape. This could take a half-day and cost about £100.

Type of Rubber Roof

There are two different kinds of EPDM rubber roofing: the conventional type and a more contemporary self-adhesive membrane.

The Size of the Roof

The cost of installation will increase if you have a bigger roof. Additionally, you will use less material if a rubber roof is installed on just one garage. You’ll also work less than you would on a double garage with a bigger roof.

Height of the Roof

If you need scaffolding, the height of the roof might increase the rubber roofs cost. The majority of roofers install rubber roofs on flat roofs using ladders. Higher roofs will cost more to work on as well because there is more danger and risk of injury.

Skip Hire

There will probably be trash that you need to dispose of if you are removing an old roof and repairing your wooden joists. The trash will be in one location if you rent a skip, so you won’t have to worry about getting rid of it. A skip will cost between £150 and £200 for a skip hire.


As discussed above, you might need scaffolding or a scaffolding tower if the roof is high. A scaffolding tower costs about £45 per day.

Adding Guttering and a Downpipe

Rainwater will drain from your roof through the gutters and into the downpipes, keeping your roof dry. Unless you have cast iron, both components run about £30 per metre, with cast iron running about £65 per metre.


To make your house more energy-efficient, it is a good idea to make sure your roof is properly insulated. Additionally, insulation will keep your garage dry because it lowers the chance of condensation. Deck insulation, whether warm or cold, costs about £34 per square metre. This implies that the cost of insulation for a single garage will be around £612.

Repairs to the Joists and Boarding

You might want to think about replacing your wood joists and boarding if they’re in poor shape. The cost to replace the timber joists and boarding in a garage ranges from £600 to £750. Prior to installing your rubber roof, you must repair any damage to the roof’s timber caused by moisture or flying objects.

Cost across rubber roofing types

Rubber roofs cost per square foot

The size of your rubber roof has an impact on the cost, as was already mentioned. The more materials and labor hours needed for installation depend on the square footage of your roof. It might be helpful to request a quote per square foot for smaller roofs. The typical price per square foot for rubber roofing is £7.

EPDM rubber roofing cost

With its durability and additional features, this kind of rubber roofing can be a fantastic choice. It might be a little more expensive than other roofing types, but it is well worth the price. The average price per square meter for EPDM rubber roofing is £70.

Cost of rubber roofing membrane

In order to protect any belongings under your roof as well as the structure of your home, it is crucial to build a watertight roof. Roofing membranes are useful in this situation. Rubber roofing membranes typically cost £220.

Rubber roof replacement cost

It might be time to replace your rubber roof if it already has seen better days. Remember that minor tears can probably be patched, but if the damage is more severe, a replacement might be the best option. For a double garage, the typical replacement rubber roof cost is £1,100.

Process of Installing a Rubber Roof

Though it may seem straightforward since it’s laid out here, it’s always a good idea to consult a professional roofer when embarking on a project such as this. 

An asphalt or timber base bond, as well as an older rubber roof, can be covered with rubber roofing.

Below you will find the process of installing a rubber roof:

  • Verify the joists and boarding on the roof to make sure they’re in good shape.
  • Get them fixed or replaced if they are damaged or in poor shape. Make sure to thoroughly dry the roof after cleaning it.
  • Lay the rubber membrane out and give it at least 40 minutes to settle—more time is preferable in colder climates.
  • Fold the membrane back once it has settled to expose the top half of the roof.
  • Using a roller, spread the water-based adhesive over the exposed portion of the roof.
  • Apply the rubber membrane to the adhesive right away after taking it out and rolling it back. Any air bubbles should be eliminated with a broom and a small roller.
  • Repeat this process for the other side of the roof. 
  • Next, apply adhesive to the upstands and the membrane, then attach the membrane to the upstand.
  • Then apply a long bar and attach your lead flashing. If you want a nice finish, put in coping stones.

How to look for a professional roofer to install rubber roofs

Watch out for construction in your neighborhood. It’s likel that you will see company vans or individuals working on sheds or garages nearby. 

Alternatively, check out roofers who are certified by trade associations such as CHAS and SMAS.

Any roofers that are a part of this generally adhere to strict work standards, follow Health and Safety guidelines, and have positive trading histories.

Finally, you can also ask for personal recommendations from friends, family, and work colleagues.

Choosing the right flat rubber roofing specialist for your project

Write down the questions you want to ask a roofer before they come to give you a quote. Include your desired items in the quotations as well. 

Ask the same questions to all roofers. Make sure they provide you with a written quotation so that you can easily compare them. 

Here are some of the questions you should cinder asking:

  • What kind of experience do you have and how long have you been in the roofing business? Don’t discount someone just starting out in the industry. There is no reason not to use them if they have the required education and work experience. 
  • Do you have a portfolio that includes images of your prior work and client testimonials? A roofer may have a physical portfolio on hand for you to peruse, or they may direct you to their website.
  • Do you belong to any organisations like the CHAS or SMAS? If they are a member of an association, you can be sure they value their reputation and work standards.
  • Do you have trade insurances? Not all roofers are members of an association, and they’ll no doubt tell you why. For tradespeople, public liability insurance is crucial.
  • Do you arrange scaffolding and waste removal? It safeguards them and you from any injury claims if workers, you, or anyone else visiting your home is hurt because of the building work.
  • Do you offer a guarantee on the roofing work?

Our roofers at LD Roofing Services Ltd qualify for all of the questions mentioned above. We also have plenty of experience (over 30 years) working on multiple flat roofing projects across multiple domains.

Click here to request a free quotation and consultation today!



LD Roofing Services Ltd is a highly rated and roofing company in Northampton with over 25 years experience offering all types of roofing services across Northamptonshire and NN postcodes.