Water infiltration isn’t good news for any structure. With that in mind, here’s all you need to know about structural waterproofing near you – from what it involves to how much it costs.
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Your questions answered about structural waterproofing
What is structural waterproofing?
Structural waterproofing is a term that refers to the act of waterproofing any structure – from bridges to buildings and infrastructure.
However, when you hear someone talk about structural waterproofing in construction, they’re usually referring to waterproofing below ground level. Any waterproofing above ground level is usually referred to as ‘damp-proofing’ instead.
How do you waterproof concrete structures?
There are three types of structural waterproofing for concrete structures.
Type A
Type A refers to barrier protection, also known as tanking.
In this case, a waterproof solution is sprayed or applied to the structure, either internally or externally. This stops moisture from travelling through and entering the property.
Type B
Type B involves using waterproof materials in the construction of the building itself.
This ensures a watertight, reinforced concrete structure. However, as it’s the building materials themselves that are providing the waterproofing, this method isn’t generally suited to retrospective applications.
Type C
Type C is all about drainage.
Instead of stopping water from entering a building, the focus is on channelling water elsewhere before it reaches the interior. This is achieved using a cavity drainage membrane. The membrane collects the water and then directs it to a sump pump, which pumps the water away from the building.
Which type of waterproofing is best?
There’s no ‘one size fits all’ when it comes to the best type of waterproofing. Instead, the answer will depend on several factors, including the type of concrete structure, its method of construction, and the desired use.
That said, professional waterproof designers will often use more than one type of waterproofing, as this tends to provide the best protection overall.
Does waterproofing stop rising damp?
No. Waterproofing and damp-proofing are two different things.
While waterproofing protects a building from water ingress, damp proofing prevents ground moisture from rising through a building’s walls or floor.
Why hire a professional for structural waterproofing?
Water ingress is never good news. Hiring a professional to carry out structural waterproofing comes with tons of benefits. Here are just a few.
High standard
A specialist will have the tools, skills, and experience needed to waterproof your basement or structure to a high standard. This way, you can be sure of a long-lasting and effective result.
Expertise
A structural waterproofing company in your area will be able to advise you on the best method for waterproofing your property. They’ll also be able to give you tips on how to maintain it and what to look out for. This advice and guidance can be priceless.
Regulations
A professional will have a thorough knowledge of British Standard 8102:2022 – the ‘Code of Practice for Protection of Below Ground Structures Against Water Ingress’. In this way, you can be confident that the job will meet regulations and provide the necessary level of waterproofing for your structure and needs.
On Checkatrade, you'll only find trades who meet our high standards and pass up to 12 checks.
How much does structural waterproofing cost?
How much structural waterproofing costs will depend on various factors – such as the type of structure, the method used, and whether you’re waterproofing during the construction phase or retrospectively.
It’s worth noting that preventative waterproofing is likely to cost significantly less than waterproofing as part of a repair job. For instance, if water has infiltrated into your interiors, your foundations could be drenched, which will lead to more costly work.
As a general guide, basement waterproofing costs can range from around £40–£250 per m². However, the average cost is £120 per m².
Head over to our basement waterproofing cost guide to learn more.
How do I find reputable specialists in structural waterproofing near me?
Wondering how to find reliable professionals for structural waterproofing near you? Here’s how to hire right, the first time.
Read reviews
Always check to see what other homeowners have to say about any structural waterproofing specialists in your area.
That way, you can make sure to choose someone that others rate.
Get multiple quotes
It’s best to get at least three quotes for structural waterproofing.
This will allow you to get a feel for a range of different professionals. Plus, you’ll be able to check that you’re getting a fair and competitive price for the work.
Ask about insurance
Check that the companies you’re considering have the right insurance in place. This will give you confidence that you’re protected in case things go wrong.
You’ll be pleased to hear that all our tradespeople must have up-to-date public liability insurance to be listed on the Checkatrade directory.
Get recommendations
Know someone who’s recently had structural waterproofing completed? Why not ask if they would recommend the specialist they used?
Make sure to cross-reference any recommendations on Checkatrade, so you know we’ve checked and vetted them too!
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