Drilling in an old home may be necessary for renovations, installing new pipes, or hanging heavy objects. Although it seems like a routine job, older homes present specific risks that modern houses often do not have. From asbestos to outdated pipes and weaker structures, there are various dangers you need to take into account.

It is important to know these risks before you start drilling, so that you can take the proper precautions and know when it is better to call in a professional.

What are the structural risks when drilling in an old house?

Older homes often have weaker structures and different building materials than modern houses, meaning drilling can cause structural damage. The main risks are hitting load-bearing elements, weakening old masonry, and damaging aging concrete structures.

In homes built before 1960, different construction methods were often used. Walls may be made of softer material or be thinner than expected. The masonry may be more porous, causing cracks to form more quickly during concrete drillingThere may also be hidden hollow spaces that you cannot see.

Load-bearing beams and pillars are sometimes located in unexpected places in old homes. Drilling through them can compromise the stability of the building. Be especially careful when drilling into walls between rooms or near windows and doors, where load-bearing structures are often located.

How do you recognize asbestos before you start drilling?

Asbestos is visually difficult to recognize without professional testing, but homes built between 1945 and 1993 have an increased risk. Suspicious materials include corrugated sheets, floor tiles, insulation material, and some wall coverings. If in doubt, you should always have an asbestos survey carried out.

Some signs that may indicate asbestos include grey or white fibrous materials, especially around pipes and heating systems. Old 30 x 30 centimeter floor tiles often contain asbestos. Insulation material that looks fluffy may also contain asbestos.

The most important thing is that you never drill yourself if you suspect the presence of asbestos. Asbestos fibers are microscopic and very dangerous to your health. A certified company can perform an asbestos survey to obtain certainty.

What happens if you accidentally hit pipes while drilling?

Hitting pipes while drilling can lead to water damage, gas leaks, or power outages, depending on the type of pipe hit. Water and gas pipes cause immediately dangerous situations, while electrical lines pose a risk of electrocution and fire.

With a water pipe, a leak occurs immediately that can cause water damage to floors, walls, and your belongings. You must then quickly turn off the main valve and call a plumber. With gas pipes, the situation is more serious because gas can explode. Ventilate the room immediately, do not use electrical appliances, and call the gas company.

Electrical wires are perhaps the most dangerous, because you can get an electric shock. Immediately switch off the power via the fuse box if you touch an electrical wire. Also check whether a short circuit has occurred before turning the power back on.

How do you prevent damage to hidden installations?

You can locate hidden installations with a pipe locator or detector before you start drilling. Always check where water, gas, and electrical lines run first by consulting the building plans or using a detector. Also, pay attention to patterns in sockets and light switches that indicate where lines might run.

Good preparation begins with inspecting the fuse box to see where the main lines enter the house. Follow this route visually through the house. Sockets and switches usually indicate where electrical lines run, often vertically upwards and downwards.

For water pipes, you can check the location of taps, radiators, and toilets. These are usually connected to each other via the shortest route. Gas pipes often run from the meter cupboard to the kitchen and the central heating boiler. Always use a detector to be sure before you start drilling.

When should you hire a professional for drilling work?

You must always hire a professional for drilling in load-bearing walls, if asbestos is suspected, for holes larger than 10 centimeters, or if you have any doubts about safety. Professional help is also necessary for drilling in reinforced concrete or natural stone due to the required specialized equipment.

Professional help is especially important if you have no experience recognizing different materials and structures. A professional has the right detection equipment to locate pipes and knows how different materials react to drilling.

A professional is also recommended for large projects where multiple holes need to be drilled. They work faster and more efficiently, ultimately saving you time and potentially money. Moreover, they have insurance that covers any potential damage.

How De Betonboorder helps with safe drilling in old homes

We understand the challenges of drilling in old homes and have the expertise to carry out these jobs safely. Our team works with professional detection equipment to locate hidden pipes and uses specialized techniques for various old building materials.

Our services for old homes include:

Preliminary investigation with pipe detection
Dust-free drilling with diamond core drills
Expertise in various old building materials
Neat finish without damage to surrounding structures

We ensure that your drilling job is carried out professionally from start to finish and that we leave the workplace tidy. Contact us for the safe and professional execution of your drilling work in an old house.

What are the risks of drilling in an old house?