Bed bug treatment

Bed bugs are the pest that upsets people most, and the one where doing it yourself most reliably makes things worse. Health Canada is blunt about it: bed bugs are very hard to get rid of, and it recommends hiring a licensed professional pest control operator (Health Canada, bedbugs: how do I get rid of them). Ottawa Public Health gives the same advice.

Step one: confirm before you spend anything. Look for live insects in the folds and seams of sheets, mattresses and box springs, reddish or rust-coloured staining on bedding, shed skins, and a sweet musty odour. Bites alone prove nothing, because people react very differently and other things bite. Catch a specimen in a sealed bag if you can, or photograph one, and have it identified. Treating for bed bugs you do not have is expensive and pointless.

Step two: do the preparation, properly. This is where most treatment failures begin. Launder fabrics in hot water and dry them on the hottest setting for at least 30 minutes, which kills bugs and eggs. Vacuum daily with a HEPA vacuum, using a back-and-forth scraping motion along mattress seams and crevices, then dispose of the bag sealed in white plastic and wash the attachments in hot water. Reduce clutter, which is where they hide. Follow the operator's written preparation sheet exactly, because a partially prepared home gets a partial result.

Step three: choose the treatment approach. Whole-room heat treatment raises the space above the temperature at which bed bugs die, which Health Canada gives as 50 degrees Celsius, and it treats all life stages in a single session. It is expensive, it needs heat-sensitive items removed, and it offers no residual protection afterwards. Chemical treatment uses registered residual products applied to harbourage sites, typically in two or three rounds spaced about two weeks apart to catch newly hatched insects. Many operators use both together.

Step four: encase and monitor. Mattress and box spring encasements trap anything remaining inside and make future inspection straightforward. Interceptor cups under bed legs both monitor and reduce climbing. Steam is useful on seams and edges, since domestic steam cleaners emit at least 100 degrees Celsius.

Step five: follow-up, which is not optional. Eggs hatch after the first treatment. A programme without at least one follow-up inspection is not a programme. Expect the operator to return two or three times over four to six weeks before declaring the job done.

How long it takes. Preparation is one to three days of your own work. A heat treatment is typically six to ten hours in one day. A chemical programme is two to three visits over four to six weeks. Total time to clearance is commonly a month to six weeks, and longer in a multi-unit building where neighbouring units may also be involved.

What it costs in Ottawa in 2026. Indicative ranges, matching this site's price guide. Chemical treatment of a small unit over two to three visits generally runs $300 to $900. A house, with more rooms and more harbourage, costs more. Whole-home heat treatment generally runs $1,000 to $3,000 or more. What moves the price: square footage, the number of rooms involved, clutter, whether adjoining units need treating at the same time, and how many visits the programme includes. Be cautious of any quote that includes only one visit, because eggs hatch after the first round.

Warnings worth taking seriously. Health Canada cautions against unregistered pesticides, homemade treatments and ozone generators, which are not approved and can cause respiratory problems, and advises never applying pesticides to bedding unless the label specifically permits it. Rubbing alcohol and other flammable liquids used against bed bugs have started apartment fires. Throwing out a mattress without sealing and labelling it simply passes the problem to whoever takes it.

What makes Ottawa different. Two local factors. First, the rental stock: Ottawa has a large student and government rental population with high turnover through Sandy Hill, Centretown, Vanier and Lowertown, and turnover is how bed bugs travel. Second, the by-law. Ottawa's Property Standards By-law defines an infestation as including one or more bedbugs, requires dwellings to be kept reasonably free of pests, and requires that pest control methods comply with provincial and federal law (City of Ottawa, Property Standards By-law 2013-416, section 13). That definition matters for tenants, because it sets a low threshold. Report in writing to your landlord, keep a copy, and contact City of Ottawa By-law Services if nothing is done.

Who should do the work, and the licence. In Ontario a pesticide exterminator licence is required to apply pesticides commercially on property you or your employer do not own, the class that applies here is structural extermination, and the business needs a pesticide operator licence, all regulated by the Ministry of the Environment, Conservation and Parks under O. Reg. 63/09 (Ontario, pesticide licences and permits). Ask which class the technician holds. Heat treatment on its own may not involve pesticides, but almost every real programme does.

What to ask before you hire. How many visits are in the price and over what period. Heat, chemical or both, and why for my situation. Will you give me a written preparation sheet in advance. Are encasements and interceptors included. Do you inspect adjoining rooms or units. What is your guarantee, how long does it run, and what voids it. Will you confirm identification before treating.