How to Choose a Flat Roof Contractor: 10 Questions That Matter

When it comes to roofing, choosing the right flat roof contractor is crucial. Rubber roofing systems like EPDM are durable and long-lasting, with a 50-year service life expectancy and making sure they are installed correctly is key to optimal performance.

Whether you’re replacing an old roof or starting fresh with new deck, here are the essential questions to ask your roofing contractor before you commit to the project.

1. What Roofing Materials Do You Recommend and Why?

Not all flat roofing materials are created equal. Ask your contractor which materials they specialise in and why they believe those options are best for your project. For rubber roofs for instance, EPDM (Ethylene Propylene Diene Monomer) is a popular choice due to its flexibility, weather resistance, and long lifespan. It is also extremely time-efficient to install and, as one of the best performers, EPDM should be on their list of options. Make sure a roof contractor explains the benefits and potential downsides of the materials they recommend.

2. Are You Experienced in Installing Rubber Roofing Systems?

Specialised expertise matters. Not all flat roof contractors are equally experienced in rubber systems. Make sure your contractor has a solid track record of installing EPDM or other rubber-based systems. Ask for examples of similar projects they’ve completed and see if they can provide references from satisfied clients.

3. Can You Provide a Detailed Estimate?

Cost is an essential factor in any roofing project. Get a detailed breakdown of all costs, including labour, materials, and any potential extras, such as removing the old roof and correct disposal or addressing structural issues. A thorough estimate could prevent surprises later on. If the contractor wants to carry out a structural survey of the roof deck before the estimate, this may be chargeable, but could prove extremely worthwhile.

4. What is Your Timeline for Completion?

Flat roof installations can be affected by weather and availability of materials. Be sure to ask your contractor for a realistic timeline, factoring in potential delays. This is particularly important if you’re working on a tight schedule or if weather conditions might affect the installation of your rubber roof.

5. What Warranty Do You Offer?

A reliable contractor should stand by their work. Ask about the warranty on both materials and workmanship. RubberCover EPDM rubber roofs, for example, often come with manufacturer warranties that can last up to 30 years. Ensure the contractor’s workmanship warranty aligns with the durability of the materials. It will also be important that the roofing contractor provides the product certificates, which demonstrates performance and assures genuine products.

6. How Will You Prepare the Surface for the New Roof?

Proper surface preparation is key to ensuring a long-lasting flat roof. Your flat roof contractor should be able to explain their process for cleaning, repairing, and prepping the surface to ensure the rubber roofing adheres correctly. Skipping this step can lead to issues down the road, like leaks or poor adhesion.

7. How Will You Ensure Proper Drainage?

Flat roofs require proper drainage to prevent water buildup, which can lead to ponding, leaks and damage. Ask your contractor how they plan to address drainage issues, whether it’s installing new drains, gutter trims or ensuring that water will flow off the roof efficiently.

8. What Safety Measures Will You Take?

Roofing projects can be dangerous, so it’s essential to ensure your contractor takes safety seriously. Inquire about the safety procedures they follow, including any relevant certifications, and make sure they are fully insured to cover potential accidents or damages.

9. Do You Have References or Reviews?

A reputable contractor should have no problem providing references or directing you to customer reviews. Look for clients who have completed similar flat roof projects, especially those using rubber materials, so you can get an idea of the contractor’s quality of work and professionalism.

10. Do You Provide Post-Installation Support?

Rubber roofs are low-maintenance, but it’s still important to ask about long-term care. Will your contractor provide advice or offer services for inspections, repairs or upkeep? Knowing how to maintain your flat roof will ensure it lasts for decades to come.

By asking these key questions, you’ll ensure your flat roof project is in good hands. Whether you’re opting for an EPDM rubber roof or another flat roofing system, a well-prepared contractor will make all the difference in the longevity and success of your roof.

We can help you find a reliable roofing contractor

The PermaRoof EPDM Installer Network is UK-wide. Through our industry training, supplier, stockist and partner network, we can connect you with trained and vetted, reliable trade roofers and roofing contractors to handle your jobs. Visit the installer page here or give us a call.

If you’re looking for top quality, long-lasting rubber roof systems, try the PermaRoof way. For more information about flat roof quotes, please visit our guide here or get in touch today.

Want to do your own quote?

At PermaRoof, we support trade and DIY roofing projects and can provide fast materials quotes via our free Kit Builder App. Enter project dimensions and details to build your automated EPDM kit list. Submit to PermaRoof with a single click and we’ll provide a competitive, no-obligation quote.

PermaGroup has established links with some of the biggest names in our industry thanks to our reputation of excellence. Read more about becoming a supplier or stockist here.