Stain testing on polished marble


After polishing marble, using the grinding and honing method, a sealer can be applied to protect the Marble. Marble is a soft stone resulting from metamorphism of sedimentary carbonate rocks, most commonly limestone or dolomite. Given the nature of the stone, it can react with substances that fall on it, causing a chemical reaction, which can stain the Marble. Sealers help to protect the Marble against the same.
There are several sealers available in the market. Before a applying a sealer, one should test a small area with different sealers to check which one is best absorbed by the stone. Since Marble is cut from a natural rock, chemical composition is different in every stone, hence sealers can react differently on different types of Marble.
R&D is important on sealers. One such testing happening at our office on Saturday using DuPont sealer on which has been spilled tea, coffee, water, ketchup and mustard.


Washroom Cleaning Tips


Bathrooms often get the dirtiest and are home to many kinds of bacteria and germs. Special care must be taken to keep the area clean and sparkling! GroupL have put together some useful bathroom cleaning tips, which you can try at home using only natural products.


Your mirrors will look brand new if you sprinkle a mixture of vinegar and water on old newspaper and use it to scrub your mirrors.


Close the water faucet/tap to the WC and flush to drain all the water. Pour a bottle of vinegar into the WC tank, squeeze a lemon if desired. Scrub the insides of the tank with a brush. Let the vinegar sit in the tank and bowl for as long as possible (overnight or a couple of hours). Thereafter, open the water faucet/tap to the WC and flush twice.


Grout in the bathroom is porous and could lead to the growth of bacteria. Mix water and bleach in the ratio of 10:1. Dip an old toothbrush in the mixture and scrub the grout to remove any mildew. Rinse well once completed.

Sink / Wash Basin

To clean the drain of your sink, pour ½ cup baking soda followed by ½ cup of vinegar down the drain. Let it stand for a few minutes, then pour boiling hot water to clear the drain. The sink can be scrubbed with a mixture of vinegar and water. Sprinkle vinegar on a microfiber cloth to polish bathroom fittings.

Shower Cubicle

Hard water deposits on shower cubicle can be hard to remove if you don’t do a regular deep clean. Prepare a paste of vinegar and baking soda. Apply the paste to the hard water stains using a scrubbing sponge or toothbrush in a circular motion. Leave the paste for 15 minutes. Remove the paste with a damp cloth. If the stain persists, spray a mixture of vinegar and water on the glass and wipe off with newspaper.

Shower Nozzle

Hard water often builds up in the shower nozzle. To remove, fill a packet of white vinegar, tie it to your shower submerging the nozzle in it. Leave it overnight and rinse well in the morning.

If you are looking for a professional, hassle free deep cleaning service contact GroupL on 9811934471 or email us at

Cleansweep is a division of GroupL Services.


Fire Safety in Public Places


Last month’s terrible fire that ripped through two upscale restaurants in Mumbai’s Kamala Mills has come as a shocking wake up call. Fourteen people lost their lives. Most were young people in their twenties and thirties whose bodies were found piled up in the toilet, where they retreated hoping to escape the fire. This could have been any of us, who visit restaurants, bars, clubs to enjoy a night out!!

To prevent such incidents repeating themselves, we have compiled a few useful fire safety tips to keep in mind when enjoying yourselves at a public place.

  • Know your exits. Wherever you are, you must take a moment to mentally note where the different exits are. These signs are usually lit up and easy to find. Most of the people who died in the Kamal Mills fire tragedy had trapped themselves in an un-ventilated bathroom with no escape and they suffocation to death.
  • Be aware of location of fire extinguisher and / or water hose. Observe as if your life depends on it. It does.
  • Our fire safety norms are followed rarely in public places. Therefore, avoid shows where the performers use fire as a prop.
  • Heat and therefore smoke rises, staying low, as low as you can get, helps. If there is smoke in the room it is advisable to crawl on your belly. Almost all deaths from fire arise from suffocation caused by smoke and not from the actual fire.
  • If you are trapped in a room with no exit the best thing you can do is stay low to the ground, breathe through a cloth or clothing over your mouth and nose, and make some kind of a signal to the outside (example hanging any garment, even a tablecloth out of a window). If windows are locked, break them and try to signal for help.

We urge you to take a few minutes to be aware of your surroundings and stay safe!

At GroupL Services, we provide fire safety training at our clients’ sites. Please email us on to schedule a fire safety training. Cleansweep is a division of GroupL Services.


Marble Polishing and Restoration

Cleansweep provides marble polishing and restoration services in NCR region. We understand that our clients may want to see samples of our work and question what we can do for them.

Put your mind at rest and be satisfied knowing that we provide quality diamond polishing services for marble.

Click here to see samples of our work.



The harmful effects of dust on the health and performance of office workers

It goes without saying that India has turned into a huge construction site. There are numerous road repairs works being carried out, construction of new underground metro, several residential and commercial projects being developed, expansion of roadways etc. The unavoidable consequence of these necessary development activities is – DUST! Unimaginable quantities of dust have been released into the air, which is settling in our homes and offices.  There are countless offices and work spaces in India that literally bath in dust causing health concerns to their employees.

Science confirms health concerns caused by dust

According to the findings of a study conducted in Oslo, Norway almost 20 years ago, it has been proved that office employees are very likely to experience symptoms directly associated with harmful dust exposure. Two groups of employees were tested, although only one was exposed to indoor polluted air. As expected, the group who worked in an office that was thoroughly cleaned and maintained didn’t experience any health issues. On the other side, the group forced to work in an office that lacked proper cleaning ended up with serious respiratory infections and health issues. The conclusion was inevitable, thorough professional office cleaning can significantly reduce the quantity of airborne dust that can harm your office employees. 

The dust is harmful to both humans and machines

According to the findings of another study, the lifespan and proper functionality of computers were significantly reduced as a result of the dust exposure. The computer vents don’t have the capacity to operate if office cleaning fails to remove the dust. Before you know it, your computers, covered in dust will make you spend much more than expected and planned for in terms of constant repairs and servicing. What’s even worse, you will be forced to acquire new machines much earlier than planned. All of these problems and costs can be avoided if routine office cleaning is carried out thoroughly by professionals.

What can GroupL do for the well-being of your office workers and computers?

We have been successfully providing office cleaning and maintenance services since 1973. The best thing you can do for both your employees and machines is to absorb air borne dust on a regular basis. Outsource all of your cleaning requirements to our experienced and motivated team. This important task will be conducted by our professional cleaners as many times as required and according to your requirements and budget expectations. We will use best in class machinery and cleaning chemicals to give you a sparkling clean office. Get in touch with us in the most suitable way for you by paying us a visit to one of our branches all over India, calling us, or sending an email. Together, we will discuss the most suitable cleaning solutions for your specific business needs.

Our contact details:


Email: /

Contact Number: 7506644528 / 9811934471

Diwali Home Cleaning

Despite cleaning our homes on a regular basis, there are some areas that get missed. Read through the link mentioned below to see some common areas where germs collect, which our daily cleaning schedule may not cover.

Here is where you can benefit from professional home cleaning service. This festive season, go ahead and contact Cleansweep to have all the nooks and covers of your home sanitized.

Cleansweep – or call 9811934471.

Areas: New Delhi, Gurgaon, Noida and Faridabad

GroupL Newsletter

With the festive season drawing close, we would like to remind you’ll of some useful safety tips to keep in mind while celebrating. Read this and more in our October newsletter.

Click here to read our quarterly newsletter.

Cleansweep is a division of GroupL.

Monthly Training

At Cleansweep, we endeavour to provide our clients a seamless cleaning experience. To achieve this, we must ensure we have a team of well trained professionals who understand not only how to fulfill their jobs efficiently but who also appreciate the importance of customer service.

Training is held regularly at our office and covers all deep cleaning techniques and marble floor polishing procedures.

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