self build waterproof basement formwork membrane concrete

These are the products I supply because they make basement building easier. Easier is the secret of success. I have plenty of stock. You can buy them from me.

This page is just an introduction. Please follow the links in the Procurement column of the menu for more information.
  self build basement

  1. Limitless advice answering your questions by email.

  2. Slab levelling system helps you achieve a flatter slab.

  3. Training, supervision and my personal guarantee that I will repair any visible leak. So effective I haven't had a leak to repair in my work for 7 years or so.

  4. Powerful plasticiser to make the prescribed concrete mix completely waterproof.

  5. Fibre glass threaded rods, nuts and steel waler plates to avoid the holes other specialists leave in otherwise waterproof concrete.

  6. External drainage membrane. Stronger and tougher than all the brands yet about as cheap as any on the market.
The fibreglass threaded rods are used to support the two sides of wall formwork as well as provide a levelling guide to top of slab concrete.

They also glue into concrete underpinning and concrete piles instead of hiring huge single sided formwork.

They replace the usual steel threaded bar in walls that are always withdrawn leaving holes that need repairing. The fibreglass rods are cut off flush. No holes. No repairs. No mistakes. No leaks.

The waterproofing admixture for concrete is actually just a very powerful water reducer added to an already waterproof concrete mix (that would be too stiff to compact without it).

There are several brands of admixture, such as Caltite, Pudlo, Sika and Xypex, and they all include a powerful water reducer and they are all added to an already waterproof concrete mix. They just cost a lot more.

I am selling you the same science for less money, because I add my powder to exactly the same already-waterproof concrete mix they do.

You need an admixture or else the waterproof concrete mix would be too stiff to compact properly. What you don't need is the bull from sales people.

Some of you are lucky enough to be able to drain the outside of your basement to a soakaway or ditch.

Where the outside of the basement could always be drained free of water you could never have a leak.

My external drainage membrane is made of exactly the same stuff as everyone else's. It is just stronger for less money.

Also, you buy your non woven geotextile filter membrane separately on a long roll and you will find it much easier to install than plastic with filter already attached because with a big sheet you have fewer joints.
threaded basement FRP rods

waterproof concrete basement

external drainage membrane

My rods are cast in so you have no holes to repair or worry you.

My admixture is added to the same mix as the others, for a lot less money, and testing to BS EN 12390 part 8 proves that your concrete is waterproof.

External drainage membrane. Tougher and cheaper than the famous brands. Simply HDPE with 8mm deep bobbles, as are all the others.

The first big difference is cost.

The second big difference is my guarantee. If you buy all relevant products and supervision from me, I personally guarantee your workmanship. That means, if you did as I tell you and you have any visible ingress of water through concrete, joints, cracks or voids I will repair them free of charge. Even if you actually did the work.

And 7?

When the Covid lockdown started I decided to take on two big basement projects built by others that went horribly wrong or leaked badly everywhere.

It made me appreciate my value a lot more. Firms are charging 50% more than I think a basement should cost and the client still has 20% more to pay to sort them out and another 10% for internal drainage that will break down if it has too much work to do.

I can avoid all that cost and all that stress and upset as well.

But I am semi-retired already receiving the state pension.

For me to manage your basement build I want £500 a day plus decent accommodation. And I need to want to do it as well.

If I gave you a budget I would still expect to come in within that budget if you pay me to manage.

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