Stored Product Insect (SPI) Treatment

ThermoPest provides expert Stored Product Insect (SPI) treatments across the UK, using safe and effective methods to protect your food storage and business from costly infestations.

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Stored Product Insects (SPIs) are a major risk to the UK food industry, contaminating products, damaging stock, and threatening compliance with food safety standards. Infestations in flour mills, warehouses, bakeries, and food factories can spread quickly, leading to costly losses and reputational harm.

At ThermoPest, we specialise in professional SPI pest control for food production businesses in London and nationwide. Using advanced heat treatment technology, supported by monitoring and ongoing pest management contracts, we deliver safe and effective control without the need for chemical fumigation.

See our Stored Product Insects information page for details on the most common pests affecting food businesses.

Why Heat Treatment for Stored Product Insects?

Heat treatment is one of the most effective methods of controlling SPIs in food production environments. Unlike chemical fumigation or spraying, heat leaves no toxic residues, making it ideal for use around food storage and processing.

  • Chemical-free – safe for food production and storage facilities.
  • Complete eradication – destroys eggs, larvae, pupae, and adults.
  • Fast turnaround – minimal disruption to production schedules.
  • Environmentally friendly – no harmful chemicals entering the food chain.
  • Audit-friendly – supports BRC, SALSA, and other food industry compliance standards.

Discover more about our wider heat treatment services.

pest control heat treatment

Our SPI Pest Control Programme

At ThermoPest, we don’t just carry out one-off treatments — we provide integrated pest management (IPM) solutions for food manufacturers and storage facilities.

Step 1: Site Survey & Risk Assessment

We inspect your facility to identify the type of stored product insect, the scale of the problem, and high-risk areas.

Step 2: Heat Treatment

Our professional heaters raise the temperature of the environment to lethal levels for insects at all life stages. Sensors ensure even heat penetration into cracks, machinery, and stored products.

Step 3: Monitoring & Prevention

We install and maintain SPI monitoring systems such as traps and detection points to track insect activity and identify risks early.

Step 4: Ongoing Contracts

For businesses under constant pest pressure, we offer regular pest control contracts (monthly, bi-monthly, or quarterly visits). This ensures infestations are managed proactively and compliance is maintained year-round.

Common Stored Product Insects Treated

Our treatments control all major SPIs, including:

  • Indian Meal Moths – common in flour, cereals, dried fruit, and nuts.
  • Warehouse Moths – infest cocoa, tobacco, nuts, and dried products.
  • Grain Weevils – found in wheat, rice, and maize storage.
  • Saw-Toothed Grain Beetles – infest cereals, nuts, and chocolate.
  • Flour Beetles – common in bakeries and flour mills.
  • Biscuit Beetles – infest packaging as well as stored products.

For detailed profiles, visit our SPI information guide.

Industries We Support

Our SPI treatment and monitoring programmes are trusted by:

  • Flour mills & bakeries
  • Grain storage facilities & silos
  • Food manufacturers
  • Warehouses & distribution centres
  • Commercial kitchens & hospitality businesses

If your business is audited under BRC, SALSA, or retailer standards, our services help you maintain compliance and protect your supply chain.

food production pest control for SPIs

Why Choose ThermoPest?

  • London-based team with nationwide coverage
  • Specialists in heat-based pest control for the food industry
  • Safe, chemical-free solutions tailored to sensitive environments
  • Support for audits and compliance in food production
  • Flexible pest control contracts for ongoing management
  • Trusted by leading food manufacturers and distributors

Stored Product Insect Treatment FAQs

Stored product insects (SPIs) are pests such as moths, beetles, and weevils that infest foodstuffs including flour, cereals, grains, nuts, and dried fruit.

The most effective method is heat treatment, which kills insects at all life stages. Long-term control also requires monitoring, cleaning, and regular pest management.

Yes. Heat treatment is chemical-free and leaves no residues, making it safe for use in food storage and processing facilities.

Yes. While we are based in London, ThermoPest provides SPI pest control services across the UK, including Birmingham, Manchester, Leeds, and Glasgow.

Yes. We provide flexible pest control contracts with 8, 12, or 24 visits per year, depending on your site’s needs and risk level.

Protect Your Business from Stored Product Insects

SPI infestations can cause major financial and reputational damage. With ThermoPest’s specialist heat treatments and IPM contracts, you can keep your food business compliant, protect your products, and prevent costly recalls.

Call 0808 189 2310 or contact us today to arrange a survey.

Industry Experts

Leading experts in stored product insects control

Emergency Call-outs

Guaranteed quick and rapid responses to urgent infestations

Contract Work

For ongoing problems, use our preventative contracts

Get a quote

Homeowners and Businesses Trust ThermoPest

Speak to a stored product insects removal expert today!

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