Terrace gardening 2020 – Advantages, disadvantages and cost?

terrace gardening
terrace gardening

Terrace gardening | Why do we need it? How much will it cost? What are the advantages & disadvantages?

disadvantages of terrace gardening

Terrace / roof gardening is a booming concept in all metropolitan cities across the country. In this blog, we are going to detailly explain why do we need a terrace garden? Is it complicated to set it up? How much is it going to cost? What are its advantages and disadvantages?

disadvantages of terrace gardening


disadvantages of terrace gardening

The following blog will be providing answers to the above mentioned questions in detail. You can also directly skip to a particular question by clicking on it, however we recommend you to read the entire blog to have in depth knowledge about the terrace gardening

1. What is terrace / roof gardening?

disadvantages of terrace gardening

5. What will be terrace gardening cost in Chennai?

Setting up a garden in a building’s roof or terrace instead of the ground is known as terrace gardening. It can be either functional with plants that grow vegetables and fruits or for decorative purposes with plants that look attractive and grow flowers. It has become very famous in metropolitan cities as there is not enough space in the ground to set up a garden.

Are You Ready to hire a contractor? Check out our list of services and pricing

disadvantages of terrace gardening

benefits of terrace gardening

2. Why do we need terrace / roof gardening?

5. What will be terrace gardening cost in Chennai?

” To save our lives and money”

Price of 1 kg tomato was around Rs.5 before 15-20 years. Now its Rs.50/kg. In the next 10 years, it will go up to Rs.500/kg. In that case, an average family of 4 will be spending Rs.50,000/month just for buying vegetables. We can set up a terrace gardening for as low as Rs.5000 today. Not just saving money but there are various other benefits in having our terrace garden

  • You get fresh and pesticide-free vegetables/fruits
  • Keeps the building cooler
  • Helps in harvesting rainwater
  • Keeps us close to nature
  • Spending 15-20 mins in the terrace garden can help reduce your stress levels
  • Helps in reducing pollution
  • You can grow medicinal plants and herbs too
  • Makes the house look visually appealing

Do you remember people standing in long queues to buy vegetable during corona lockdown and paying a premium price for vegetables? You can avoid that to an extent with terrace gardening.

Know more about benefits of terrace gardening here.

disadvantages of terrace gardening

3. How to set it up and maintain it?

5. What will be terrace gardening cost in Chennai?

The first step in setting up a terrace garden is to finalise the layout.
How much space do you have?
How many plants do you require?
What kind of plants?
How are you going to place it?

Preparing a layout by yourselves answers all these questions. Once the layout is prepared you will have crossed halfway in setting up the garden. Based on the layout you can approach a terrace gardening expert you may find online (you get a ton of terrace garden dealers through google search). You can talk with them, check out their previous work, talk with their existing customers to verify their work. You can also seek expert advice to the dealers, some of them does this work out of sheer passion rather than doing it just for money. You may identify people like them just by talking with them. Finally, you can set up the garden using expert help. Some of the contractors like cityrene builders provide terrace gardening as complimentary to their customers while building homes with them. You can find them at hire and build.

disadvantages of terrace gardening

4. What kind of plants, vegetables or fruits can we grow in Chennai?

5. What will be terrace gardening cost in Chennai?

Vegetables Herbs Fruits Flowers
Bottle gourd
Passion fruit
Egg Plant
Curry Leaves
Holy Basil
Lemon Grass
Indian Sorrel
terrace gardening cost in chennai

5. What will be terrace gardening cost in Chennai?

5. What will be terrace gardening cost in Chennai?

Approximately it might cost Rs.100-150/sft. But it depends on various other factors too which are listed below

  1. The type of plants you are going to grow
  2. The type of containers you are choosing to grow your plants i.e. grow bags, pots, plastic cans etc.
  3. The type of watering system you are going to use, is it going to be manual or automated
  4. Type of surface, if the building is new the terrace would be in good condition it doesn’t need to be waterproofed if it’s an old building it needs to be waterproofed.

5. What will be terrace gardening cost in Chennai?

6. Disadvantages of terrace gardening

  • There are very little disadvantages in terrace gardening when compared with the advantages however there are some challenges in setting up a terrace garden. Some of them are listed below

    1. The terrace has to be properly waterproofed before setting up the terrace garden or else there may be leaks in the roof
    2. If there is no proper slope provided in the terrace the water may be stagnant in between the plants during rains
    3. The wind speed will be high in the terrace when compared with the ground level, hence proper protection must be given to the plants to prevent it from getting damaged.
    4. Frequent maintenance and cleaning might be required as there will be shedding of dry leaves.
    5. There are high chances of pests and insects to be present in the terrace garden which might require frequent attention

You could get more detailed information about terrace / roof gardening in this post

Waste water recycling for your home-2020|Cost effective method

water recycling
water recycling

Waste water recycling for your home-2020|Cost effective method

In this blog we are going to see in detail about the waste water recycling, its uses, advantages, disadvantages and the cost involved in it. 


The following blog will be providing answers to the above mentioned questions in detail. You can also directly skip to a particular question by clicking on it, however we recommend you to read the entire blog to have in depth knowledge about the waste water recycling

Are You Ready to hire a contractor? Check out our list of services and pricing

1. What is waste water recycling?

Everyday 100’s of litres of water used by a family for household usage i.e washing, cooking, bathing, bathroom usage etc. In commercial factories or apartments this usage can go upto multiple times when compared with a regular household usage. This water becomes unclean after usage and it’s sent out of the house as waste water. The process cleaning the waste water and making it fit for direct or indirect usage is known as waste water recycling.

2. What are the types of waste water?

There are two types of waste water that we take into consideration for water recycling

Grey water: 

Grey water is the used water from all the household or commercial usage without the faecal matter or faecal contamination. i.e. Used water from shower, kitchen sink, wash basin, washing machine and used for other purposes except toilet flush tanks. Grey water contributes to 90% of the waste water from a house. It’s easy to treat this unless harsh chemicals like cleaning acids are used.

Black water: 

Black water is the waste water from toilets, primarily from flush tanks. Water contaminated with faecal matter is known as the black water. It is harder to recycle this water when compared with grey water as black water contains more pathogens, germs and bacteria

3. What are the current techniques we are using to handle the waste water?

There are various techniques used to handle waste water across multiple locations. We are going to explain some of the popular methods used in Chennai, their advantages and disadvantages.

Water recycling septic tank

RCC Septic Tank:

It is used in places where there is no central drainage connection. This method involves collection of all the waste water in a house or building i.e. grey and black water inside a concrete tank where the sludge and waste water is allowed to settle down using gravity. The water accumulated will slowly percolate into ground and only the sludge will remain

Advantages of RCC Septic Tank

  • There is chamber to separate sludge from the water hence making it easier to clean

Disadvantages of RCC Septic Tank

  • Has to be cleaned with trucks often. 
  • Since the waste water & sludge is stored underground, after a few months or years the sludge will get deposited on the ground pores and the percolation of water will become less. Due to this, the waste water will become stagnant, once the tank becomes full it will start flowing out.
  • Even though sludge and water are separated in separate chambers the bacteria and pathogens from them will penetrate into the ground and contaminate the existing ground water.
  • Expensive when compared with the other existing methods which are mentioned below.
Water recycling septic tank rings

Septic Tank Rings:

It is also used in places where there is no central drainage connection. It’s very similar to RCC septic tank except the water is collected inside a ring without a separation chamber

Advantages of septic Tank Rings

  • The most cheapest method and takes less amount of time to install.

Disadvantages of septic Tank Rings

  • Same disadvantages as RCC septic tank except the cost.
  • The surface area of this method is very less when compared with RCC septic tank,  so the chances of sludge getting deposited in the ground and decreasing the percolation capacity will be much higher.
  • Not easy to clean since there is no separation chamber

Drainage system:

This is a central drainage system either provided by government or developed inside a community. The entire wastewater would be collected and either dumped in rivers, seas or cleaned using cleaning trucks.

Advantages of drainage system

  • The house owner doesn’t have to maintain it or clean it unless there is a blockage

Disadvantages of drainage system:

  • It’s available only in prime locations of a city or inside a gated community.
  • If there is a blockage its not easy to find and rectify.

In all the current techniques of handling wastewater there is one common problem "Zero water savings"

4. What are the technologies used for waste water recycling?

Once again there are multiple technologies used for waste water recycling across the world. We are going to explain some of the most commonly used water recycling technologies

sewage treatment plant

Sewage treatment plant (STP):

STP’s are commonly used in large apartments where the number of residents are more than 100. It involves the process of collecting all the waste water and separating the sludge from them using filters and treating the water with chemical or electrical process. There are different kinds of STP’s based on the purpose and budget.

Advantages of STP:

  • Recycles the water so that it can be reused.
  • It reduces the amount of waste generated by us and contributes to the environment

Disadvantages of STP:

  • It is very expensive
  • High maintenance cost
  • Requires a skilled person to maintain it
  • Requires chemicals and electricity to operate. High operational cost too.
cement recycling tank

Bio cleanser septic tank:

These kinds of septic tanks use bacteria to recycle the waste water. There are different varieties in this type of recycling tank. Some of these tanks can recycle both grey water and black water, some of them can only recycle black water as it needs organic material to feed the bacteria which helps in recycling the waste water. The bacteria which is present inside the septic tank will eat the sludge and remove some pathogens and bacterias from the waste water. Harmful chemicals and cleaning acids should not be used as it will kill the live bacteria inside the tank. It has one large tank to collect the waste water and treat it with live bacteria, the treated water is sent to various small tanks which will percolate the treated water into the ground.

Advantages of bio cleanser septic tank:

  • Recycles the water without electricity or chemicals
  • It uses gravity for the flow of water and bacteria to recycle the waste water. Hence very less operating and maintaining cost
  • No maintenance person required
  • Cost effective when compared with STP’s or conventional septic tanks

Disadvantages of bio cleanser septic tank:

  • The treated water cannot be reused directly
  • Recycled water is not fit for skin touch i.e it cannot be touched directly as it might create some allergies
  • Since it has more number of smaller tanks it requires more space and cannot be used in smaller plots inside city limits
  • It cannot be place under car parking without a reinforced concrete flooring as the load of car might break the recycling tanks
bio septic tank

Biofilm septic tank:

This type of septic tank uses aerated filters and aqua septic bio film inside it to recycle the waste water. It relies on microbes to use oxygen and grow inside plastic intermediaries present inside, the microbes form like a mucus inside by feeding off the waste inside the tank and cleans the impurities. These type of tanks can recycle both black and grey water. Harmful chemicals and cleaning acids should not be used as it might damage the filter inside.

Advantages of biofilm septic tank:

  • It has all the advantages similar to bio cleanser septic tank, it occupies much lesser space all other waste water recycling systems.
  • It can be used in small plots inside city limits

Disadvantages of biofilm septic tank:

  • The treated water cannot be reused directly
  • Recycled water is not fit for skin touch i.e it cannot be touched directly as it might create some allergies

5. What is the cost of waste water recycling?

Based on the method of waste water recycling and its capacity the cost may vary. But in residential segment for a family of 4 an average of 10,000 litres capacity – conventional septic tank would cost approximately Rs.1,60,000 – Rs.1,80,000.

Wastewater recycling tanks like biocleanser or biofilm septic tanks would typically cost around Rs.1,25,000 to 1,65,000 depending on the capacity and installation type. This cost includes the cost of water recycling tank and installing it under car parking along with RCC slab. If it’s installed in a open plot where there is no car parking or any other floor area on top of it, the cost will be lesser since it does not require RCC slab.

Sewage treatment plant (STP) can range between Rs.5 lakhs – 12 lakhs for apartments with less than 200 people.

greywater reuse

6. What are the advantages of waste water recycling?

  • Reduces the wastage of water 
  • Prevents the depletion of underground water table and saves water.
  • Grey water can be directly used for gardening purposes like how its shown in the image above. It helps in gardening

Some real life scenarios which can be avoided by waste water recycling

  • We drill a borewell upto 100 feet now, after 5 years time the borewell runs out of water and we will have to have dig another deeper well. This happens because we take the water out of borewell but do not give back. Rain water is also not properly harvested which all contributes in depletion of underground table
  • Cost of water purchased in trucks can go upto 3 times in summer season, most of the time we don’t get water trucks too. There is huge demand for it during summer season. We need not depend on water trucks if only we had recycled the waste water from our house
  • The need for water or the cost of it is not going to get reduced but will increase multiple folds in the future. If we don’t recycle the water we will have to pay a fortune for water in the future

" Our parents generation would have never thought buying drinking water in cans will be the only option for us. Likewise we don't see the fact that our children and grandchildren will be having no water to use"

7. What are the disadvantages of waste water recycling?

  • For people who already have a central drainage system this might be an additional cost 
  • It has to be carefully handled, throwing solid objects or harsh chemicals, acids might damage the recycling tank
  • Since its buried underground the chances of repairing it is very less and will be costly.
  • If not properly installed the chances of it getting damaged is high. It’s better to choose skilled people who does best quality work

8. Waste water volume calculation

This table indicates an average value of water usage for family with 4 people in India. The values in this table are arrived based on the data collected by talking with some of our customers and our own household usage

Wastewater type Wastewater source L/Family/Day
Toilet Flush
Shower & other bathroom use
940 litres/day

On an average day a family of 4 uses close to 1000 litres of water per day for domestic purpose. You can also calculate your usage based on your overhead tank capacity and how long does it last if filled one time.

9. Can we reuse the recycled water?

The most cost efficient and easiest way to reuse the recycled water is to use grey water for gardening purposes and to recharge the ground water.

There is a common expectation that if we can reuse the recycled water in flush tanks to be used in toilets. To do that we will have to install additional underground tank and also an additional overhead tank and a pump so that the recycled water can be pumped into the overhead tank and supplied to flush tanks. So just to reused the recycled water we will have to buy 2 additional tanks and a water pump which altogether might cost close to Rs.30,000 including installation.

The recycled water will not be transparent in color or free from smell, so the flush tanks, overhead tank and plumbing lines will require frequent cleaning and maintenance. The motor pumping that will also require frequent maintenance. Our toilets may also smell bad and stains may be formed on it because of the water.

10. What is the importance of waste water recycling? Is it worth the cost and effort?

The most important reason to recycle the waste water is to save our own money and future.

An average family spends upto Rs.5000 per month in buying drinking water cans. Our parents would have never imagined that their children will be spending that much money for buying drinking water. Their monthly salary itself might have been only Rs.5000 at that time. Likewise our children may spend Rs.1 lakh per month for buying water for domestic usage. 

How many of us have suffered without water in borewells during summer? 

A 9000 litre truck load of water costs around Rs.5000 in summer compared to Rs.2000 in other seasons supplied by private companies. Source: News 18

Based on that cost we will be spending Rs.15000/month if our borewell ran out of water and we are completely dependent on water trucks and they might not be available too at all times. The water cost keeps rising every year.

"Water will be the most valued commodity in the future - not oil or gold"