Climate action at home

A home energy retrofit involves making changes at home to reduce the amount of energy your household uses. This could also include potentially changing the sources of energy used in the home to lower-emission ones. By investing in retrofits that make your home more energy efficient, you will lower your energy costs, reduce your maintenance requirements,  reduce your carbon emissions, and support the local economy and local jobs. The costs and savings associated with home energy retrofits is largely dependent on the age, condition and size of the house, with older homes generally having greater potential for savings. Renovating existing homes with energy-saving improvements is a priority included in London’s Climate Emergency Action Plan.

Minor retrofits could include:

• Caulking and adding weather strips around windows and doors to eliminate drafts.
• Installing low-flow faucets
• Upgrading lighting systems
• Installing a smart thermostat

Major retrofits could include:

• Replacing windows and doors
• Updating inefficient heating and cooling systems
• Adding Insulation
• Installing net-metered solar power

For Londoners in rented homes, the measures above would need to be undertaken by property owners. However, tenants can make some draft-proofing improvements such as:

• Temporary window film for draft-proofing and insulation
• Electrical outlet foam gaskets for exterior walls
• Draft-proofing tape for exterior doors

A naturalized yard is made up of native plants and designed to support pollinators and the environment. Yard naturalization reduces the amount of turfgrass in a yard and helps create a natural landscape of plants local from the region.

Naturalized yards have many climate and environmental benefits, including:

• providing food and habitat for bird and insect pollinators
• attracting organisms that control unwanted pests like mosquitos and rodents
• absorbing heat during extreme weather
• allowing water to better infiltrate into the ground reducing the chance of basement and yard flooding
• improving soil health for plants and trees
• reducing water, chemical, and energy usage that would have been used to maintain turfgrass yards

Requirements for maintaining yards and lots 

Information on community by-law regulations regarding yard maintenance can be found at: 

Municipal Compliance | City of London

Tips for naturalizing your yard 

Naturalizing your yard can help your home take climate action. To establish a thriving naturalized yard, use native plant species that are adapted to your region (Winter hardiness zone 6A-6B, Ecoregion 7E). 

Many native plants species have specific environmental requirements for growth such as light, temperature, water, nutrients, and soil type. An ideal pollinator friendly yard will include:

• food sources, such as pollen and nectar from native flowering plants
• nesting and overwintering sites, such as hollow stems, dead wood, and fallen leaves

Some plants you may wish to use include: 

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Spring

• Wild strawberry (Fragaria virginiana)
• Canadian columbine (Aquilegia canadensis)
• Blue violet (Viola soraria)
• Garden phlox (Phlox paniculata)
• Foamflower (Tiarella species) 

Summer

• Butterfly milkweed (Asclepias tuberosa)
• Blazing star (Liatris aspera)
• Purple coneflower (Echinacea pallida)
• Black-eyed susan (Rudbeckia hirtaa)
• Bee balm (Monarda fistuloda)

Autumn

• Goldenrod (Solidago species)
• Big bluestem (Andropogon gerardii)
• Smooth aster (Symphiotrichum laeve)
• Cardinal flower (Lobelia cardinalis)
• Autumn stonecrop (Sedum species) 

London is home to a wide range of pollinators, including hundreds of species of birds, bees and butterflies. These animals provide important environmental services such as pollination, which allows plants to produce seeds, fruits and new plants. Planting native plants helps pollinators thrive and provides them pollen and nectar.

Learn more about gardening with native plants

Frequently asked questions

Where can I find plants to use for my naturalized lawn?

Visit plant sales and seed exchanges organized by environmental groups and public libraries in London. Many local greenhouses and stores sell native plants. 

Will a naturalized lawn create pest issues?

In general, no. You can help avoid unwanted pests by:

- removing standing water to limit mosquitos

- do not leave out spilled food that attracts rodents, such as birdseed

- checking the exterior of buildings and seal points of entry for rodents

- keeping a cleared path for humans to walk through without entering tall grass

Will lawn naturalization affect my property’s value? 

Naturalization does not mean neglect. Naturalized lawns can potentially increase your property’s value by allowing native plants and trees to establish, improving protection from extreme weather and lowering your energy bill. 

In Ontario, homeowners have two options for using solar power in their homes: 

1. The first option is to use solar power in a “net metering” arrangement where excess solar power generated by your home is credited for use at other times of the year.
2. The second option is to use solar power combined with batteries in a “load displacement” arrangement that has the added benefit of providing emergency power for your home. Ontario’s new Home Renovation Savings program provides up to $10,000 in incentives for solar panels and batteries in this arrangement.

Learn more about your solar energy options with MyHEAT Solar 

Every drop of drinking water used or wasted carries with it an environmental impact. Treating and pumping our water and sewage is responsible for about one-third of the energy use and greenhouse gas emissions from municipal operations in Ontario. Conserving water can limit these impacts.

Every litre of water that does not need to be treated and pumped reduces energy use and emissions.

Showers and baths

In London, the majority of a person’s daily water consumption is used for bathing. Of the water used, almost half is heated.

Heating water for bathing requires a lot of natural gas and can account for approximately 25% of the energy consumed in your home. A five-minute shower with a standard showerhead uses 100 litres of water.  The same length of shower with an ultra low-flow showerhead uses only 35 litres of water.

How you can lower your water and energy use:

• Reduce your shower time
• Install a high efficiency showerhead with a WaterSense label

Hot water recirculation units

If you find yourself running the tap for more than 30 seconds while waiting for hot water, you may want to install a hot water recirculation unit to help save money on your water bill and limit wasted water. A hot water recirculation unit works by circulating water through the pipes so that room temperature water can return to be reheated, rather than go down the drain. When you want hot water, it's there instantly.  As every property is unique, please contact a professional for more information on whether this system can help you save money and water in your home.

Toilets

There are many ways to save water through your home's toilet. including reducing the number of times you flush per day, finding and repairing any leaks you have and retrofitting your home and toilets to be more water efficient.

20% of an average Londoner’s daily water use is flushed down the toilet. One toilet flush can use up to 18 litres of water. Ultra-low flush toilets can use up to 12 litres less water per flush while maintaining the same flushing power.

How you can lower your water and energy use:

• Install a low-flow toilet WaterSense label.
• Avoid unnecessary flushing.
• Never flush wipes down the toilet. Even if a product states it is “flushable”, these items do not readily decompose in the sewers and lead to major problems in wastewater pumping stations and treatment plants. They can even negatively impact your home's plumbing.
• Check for any leaks in your toilet by adding food colouring to your water tank and waiting 15-30 minutes to see if the colour spreads to the bowl without flushing. If there is any colour in the bowl, then you have a leak, and your toilet needs to be repaired.
• Check your toilets for worn out, corroded or bent parts.
• Replace or adjust the toilet flush handle if it is sticking regularly as this causes water to flow constantly.
• For toilets larger than 6 litres, place a water-filled plastic bottle or commercial toilet insert into the tank. This reduces the volume of water needed to fill the tank, but still provides enough for flushing.

Washing machines

A traditional washing machine uses approximately 190 litres of water to wash a large load. A high efficiency washing machine can save you up to 100 litres of water per large load of laundry.

How you can lower your water and energy use:

• If you can, wear your clothes more than once to avoid unnecessary loads of laundry.
• Select the correct load sizes and cycles on your machine when doing laundry.
• Wash full loads of laundry to save money, water, energy and detergent.
• When buying new washing machine, consider purchasing a front-loading model.  These machines use less water, reduce energy costs, require less soap and are gentler on your clothes. If you can't select a top-load washer, choose one that is high efficiency.
• Wash in cold water to save money and conserve hot water for other uses. Washing in cold water also reduces damage to clothes.
• Check for and repair any leaks around the washing machine taps and hoses.
• Use environmentally friendly detergents that have no phosphate and are biodegradable.

The kitchen

While preparing dinner or doing dishes, look for ways your family can reduce its water use in the kitchen. 

How you can lower your water and energy use:

• Soak your pots and pans instead of letting the water run while you scrape them clean.
• Keep a container of drinking water in the refrigerator to reduce the wasteful habit of running tap water to cool it before drinking.
• Do not use running water to thaw meat or other frozen foods.  Instead, defrost foods overnight in your refrigerator or use the microwave’s defrost settings.
• Save water from cooking vegetables and use it for soups and gravies or use it to give your houseplants a drink once the water is cool.
• Boil vegetables using just enough water to cover them.  Steaming vegetables not only uses less water, it conserves more nutrients.
• Install an instant water heater in your kitchen so you don't have to run water for it to heat up. This also can reduce heating costs in your home.
• Collect fats, oils, and grease (FOG) in a cup and keep it from going down the drain. FOG can block London's sewer system when it's poured down your sink or into your toilet.  When FOG hardens, you could end up flooding your basement. Free FOG Cups can be picked up at City of London EnviroDepots and at London Public Library locations. 

Outdoor water use

The way in which you water your lawn is just as important as how often and how much water you use.  It is important to choose the right irrigation system for the landscape.

How you can lower your water and energy use:

• The best time to water your lawn or garden is the early morning.  Avoid watering in the late evening which can cause long periods of dampness increasing the risk of disease and fungus.
• Be mindful of municipal water alerts. Lawn and garden watering may be limited to certain dates to conserve water during the warmer months.
• Rain barrels are an excellent way to conserve water and save money on your water bills. They collect rain water that can be used for your lawn and garden.
• Avoid using a lawn sprinkler.  If you must use a sprinkler, install a water efficient component such as a low-rise sprinkler head, soaker hoses, or a drip irrigation system and use a timer.  Make sure you are not watering sidewalks and driveways.
• Purchase a rain gauge to determine how much rain or irrigation your yard has already received each week.
• Water your plants deeply but less frequently to create healthier and stronger landscapes.
• Adjust your lawn watering schedule and method so that it is specific to your lawn’s soil condition.
• Avoid overwatering.  Watering your lawn too much and too often will cause shorter root systems to develop making it susceptible to dry conditions.  Overwatering indicators include yellowing or lighter green leaves, or algae and fungi growth. One inch of water per week is enough.
• When selecting plants and grass to reseed your landscape, consider drought-resistant grasses and plants. Group plants with the same watering needs together to get the most out of your watering time.
• Outfit your hose with a shut-off nozzle which can adjust the water flow rate.
• Eliminate hose and tap leaks by using hose washers between the spigot and the water hose.

Water conservation while you are away from home

Going away for a trip or vacation? Set your water heater to vacation mode or lower the temperature a few degrees.

Turning off the main water supply to your home is also the best defense against flooding caused by a burst pipe or other plumbing failure.

First, locate the main water supply valve in your home. The valve should have a wheel control or lever handle to open and close it. It is perfectly safe to turn it off by either turning the wheel clockwise or closing the lever. If you don’t know where to locate the valve, you may find it in the basement, in the crawl space, or outside your home.

Flooding has been identified as one of the highest risks in London caused by climate change. Sump pumps, sump pits, and backwater valves can help prevent flooding. Basement window well covers, downspout extensions, downspout splash blocks, and landscaping to maintain or create surface swales can also help water flow away from homes.

The City's Basement Flooding Grant Program is designed to provide financial assistance to property owners to disconnect their weeping tiles from the City’s sewer systems and to install a sump pit and sump pump, and backwater valve.  

Standing water in your yard can also occur for several different reasons such as soil type, lot grading, time of year, intensity of the rain event and any changes that have occurred on the property that have reduced green space.  Lot grading helps ensure that rain and snow melt flow away your home. Proper lot grading can prevent ponding of stormwater and reduce the likelihood of flooded basements and damp yards.

Learn more about flood Prevention

Planting native trees around you house will provide shade and can act as a wind break reducing the energy your home needs for both summer cooling and winter heating. Trees also help absorb heavy rainfall and reduce stormwater flows.

Learn more about tree planting

Prepare a 72-hour emergency kit to use in the event of a power outage, neighbourhood disaster or any emergency that requires Londoners to shelter-in-place. Typical items contained in a 72-hour emergency kit include bottled water, medications, food for 3 days, first aid kit, wind-up flashlight and radio, external battery pack or wind-up phone charger, dust mask and duct tape, whistle, personal sanitation items, important documents, cash in small bills and coins, warm clothing, and blankets or sleeping bags.

Learn more about emergency preparedness 

Find your outdoor faucets

It is important to winterize your outdoor faucets to prevent them from freezing as freeze damage can destroy the faucet or lead to a burst pipe. Check to see if you have a frost-free faucet. Unsure if it’s frost free? Look at the knob. If the faucet has a knob that’s perpendicular (sticks straight out) to the house, it’s frost free. 

Don’t have a frost-free faucet? Take these steps: turn off your outdoor water, drain the tap, and then close the tap for the season. It is good practice to shut your outdoor water off during the winter regardless of tap type.

Haul away your hoses

Disconnect all garden hoses from any outdoor faucets, if you leave your garden hose attached to the faucet all winter, your faucet and hose can freeze causing damage and may even lead to a burst pipe.

Prepare your pumps

Pools often require pumps to operate, so it’s important to ensure you’ve closed all parts of your pool.  Outdoor pumps should be winterized to prevent damage from freezing water. Be sure to drain outdoor pumps of water and store them in a dry place for the winter.

Shut off your sprinkler

To prevent frozen pipes or leaks it is important to winterize your irrigation system. Check your systems manual for specific details about your irrigation system or consult with your irrigation company for more information.

Evacuate your eaves

Clean your eaves troughs from any debris such as leaves, twigs, and bird nests which could cause water to collect, freeze, and eventually damage your eaves or roof. To clean your eaves, use a ladder safely to simply sweep the debris out of the trough with your hands or a small broom.

Batten down your barrels

If you have a rain barrel, it is important that you disconnect it from your eaves trough system in the winter to prevent freezing in your eaves trough and in your rain barrel. Rain barrel freezing can often lead to the barrel expanding too far and breaking. If you do not have an indoor or covered area to store your barrels for the winter, simply flip them upside down to ensure no water will be held inside of them. Once you disconnect your rain barrel don’t forget to reconnect your downspouts to ensure winter precipitation flows away from your foundation.

Test your smoke alarms and carbon monoxide detectors

This is critical. It’s always good practice to test smoke alarms monthly and replace old devices after 10 years.

Effective January 1, 2026, new CO alarm requirements apply to homes that have:

• A fuel-burning appliance (furnace, gas stove, etc.)
• A fireplace
• An attached garage
• (New) Heated air that comes from a fuel-burning appliance outside the home (e.g., an appliance in a utility shed).

CO Alarms will now be required on every floor, not just near sleeping areas.

When the snow flies, keep the vents clean to prevent carbon monoxide from building up inside your home.

The first step you can take to lower your environmental impact is to measure your household's carbon footprint. More than 1,000 London households have already used Project Neutral’s carbon calculator to create a personalized action plan, and start making a positive impact. Use the calculator and discover your carbon footprint in five minutes.

Project Neutral