Gutters overflow in heavy rain for several reasons. The main reasons why your gutters could be overflowing in heavy rain include:

• Not enough downspouts to effectively remove water from your gutters

• Too small of a gutter width—the average gutter size is four to six inches

• Clogged gutters

• Incorrect slope

If you believe your gutters were installed incorrectly, it’s a good idea to know who to call for gutter leaks. Speak with a local gutter specialist to get to the bottom of your gutter system to stop water from flooding your property or yard ASAP.

Walking on the roof to clean gutters is unsafe and not recommended due to significant safety risks. It is especially dangerous on steep or slippery roofs, or if the roof is wet or covered in leaves, which increases the chance of a fall. In addition to personal injury, walking on the roof can damage shingles, potentially leading to water leaks. Instead of walking on the roof, use a sturdy ladder positioned on a stable surface to access the gutters. Be aware that using a ladder also carries risks, as it can be difficult to maintain balance while performing the work. You can also use ground-based cleaning tools. For safety reasons and to prevent damage to your roof, hiring a professional to clean your gutters is the best and safest option.

Yes, it is generally considered safe to use a leaf blower to clear debris from gutters as long as you are wearing safety goggles and gloves. It's also necessary to have a gutter extension tool. In cases of severe clogs, it's necessary to manually clear debris that cannot be removed by the pressure of the leaf blower. Homeowners should be aware that the incredible power and speed of the output of a leaf blower can blow debris into downspouts. When this happens, water won't be able to flow through the gutters properly. For this reason, many homeowners hire professional gutter cleaners.

Underground downspouts refer to the sections of downspout extensions that lead away from your home and gutter system. While they cost more than traditional extensions, they can provide several benefits, such as less frequent damage and no need to move them for lawn care tasks. Whether they're worth it or not depends on your budget at installation time and how much convenience they'll add to your situation.