How do I know if I need a new roof?

Posted on 25 April 2022

“How do I know if I need a new roof?” is a very common question, particularly as most people don’t check this part of their home every day. If you’re worried that your roof has reached the end of its life, read on. Here are the biggest signs that your roof needs replacing. 

6 signs your roof needs replacing 

You might assume that your roof takes care of itself over the years, protecting your home from the effects of the Great British weather. However, your roof actually requires regular maintenance to keep it in optimal condition. If minor damage isn’t fixed quickly, it can result in your roofing system failing completely. Keep reading to find out the biggest signs you need a new roof.

Water damageHow do I know if I need a new roof

Water damage is often ignored by homeowners, however, this is a big mistake. Whilst you might assume that damp patches upstairs are simply a result of damp or that watermarks and mildew have come from the window after a recent downpour, they may be due to water seeping in from your roof. Water damage is often one of the biggest signs that your roof needs replacing. As soon as you begin noticing damp or watermarks, call a roofing company right away.


Whilst a small amount of moss on your roof can often be harmless, in some cases it can force the tiles apart, creating a gap that can let in water. Moss typically grows within the cracks in between the shingles. As it grows thicker, it can lift and loosen the shingles, allowing water to leak through. Check your roof for signs of mould, moss, or mildew and deal with it as soon as possible. If you don’t, damage can occur that’s difficult to repair and you may find yourself needing a whole new roof.

Outside light is visible 

When people ask us “How do I know if I need a new roof?”, we always tell them to check if outside light is visible. If after turning out the lights upstairs you can see light coming in through your roof, this is a good sign that there are cracks and holes present. Whilst they can sometimes be fixed by a competent roofer, often an entire roof replacement will be necessary. If you’ve noticed light coming through your roof, call us as soon as possible.

Loose tiles 

Tiles can sometimes become loose on a roof. Whilst a few loose or missing tiles can often be fixed, you should consider replacing the roof if there are many more than this. A roof that has too many broken or missing tiles won’t just leak but it can even fall in on you in the worst cases. Book a roof check and find out if any of the tiles are loose.   


Sagging, which happens where there’s a sag in the middle of the roof, can sometimes indicate that there’s structural damage and that it is in damager of collapsing. The cause is often water damage from rain and snow. Sometimes, design flaws, substandard materials, or poor quality installation are to blame. 

Whilst a little sagging doesn’t always mean your roof is in immediate danger of collapse, it does mean that you need to act quickly to save the structure. Sometimes, a sagging roof can be repaired. Hire an experienced roofer to assess the roof and determine the cause of the sag. They can then take steps to correct it, if possible.  


How do I know if I need a new roofYour roof is more than 20 years old 

If your roof is more than 20 years old, you’re right to wonder if it needs replacing. Since the average lifespan of a roof is 30 years, carrying out repairs to a roof of this age is often a waste of time and money. You may repair one problem only to realise that more repairs are required soon after. The costs of repairs to your roof can quickly begin to mount up. If you have an ageing roof, you should seriously consider having it replaced. Raven Roofing and Repairs is the leading company for new roofs in Grimsby, so don’t hesitate to get in touch to discuss your requirements with the team.

Arrange an annual roof check

An annual roof check can help to identify any problems before they get worse, sometimes removing the need for a full roof replacement. Not only can it give you peace of mind that your property is protected and dry but it can save you money in the long run. Annual roof checks are vital if you want to avoid the hassle and expense of a new roof.  

New roofs in Grimsby 

If the time has come to install a new roof, look no further than Raven Roofing and Repairs. We’ve been installing new roofs in Grimsby and the surrounding areas for over 20 years, building a fantastic reputation throughout the area. Investing in a new roof for your home is a big decision, but it’s one you can make with confidence when you hire our services. Using the best methods and techniques and top quality materials, you can expect us to carry out our work to the highest possible standards.  

Contact us 

Now you know the answer to the question “How do I know if I need a new roof?”, you may be looking for a local roofing company. At Raven Roofing and Repairs, we’re on hand to assist you with all your roofing needs. Call us on 01472 565 084 (Grimsby) or 01507 640 072 (Louth) to discuss your requirements with one of our friendly team. You can also request a callback via the website if you prefer and we’ll get back to you right away.

Customer Reviews

Had a skylight fitted. Excellent service, fitted my job in even though extremely busy. Was absolutely delighted the attention to detail was perfect. Made sure everything was tidied up and taken away. Thank you again. Would highly recommend.

Sally Melton

Fantastic professional and friendly service. Used Raven roofing for a full new roof. Very happy and extremely satisfied with the work that has been carried out. Would definitely use again and also highly recommend :)

Cobie Drinkell

After Recent Storm damage, I gave Raven Roofing a call to give me a price for some repair work I needed in the aftermath of the storm, Nothing seemed to be too much trouble for these guys and the work ...

Mike Prior

These guys did a great job repointing my roof gulleys

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Rang raven to come and fix my roof after last months storm, came next day and repaired, very happy with service and price, will definitely use again.

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