At Indoor Air Quality Testing, we provide professional indoor air quality (IAQ) assessments for workplaces, schools, healthcare facilities, residential properties, and commercial buildings across the UK.

Since most people spend over 90% of their time indoors, maintaining clean air is critical for occupant health and comfort.

As regulatory bodies increasingly require IAQ assessments in sensitive environments, testing ensures you stay compliant and proactive.

Book your indoor air quality test with our experts today.

What Is Indoor Air Quality Testing?

Indoor air quality testing uses specialist equipment to measure the concentration of airborne contaminants and assess ventilation effectiveness.

Common pollutants monitored include carbon dioxide (CO₂), carbon monoxide (CO), volatile organic compounds (VOCs), particulate matter (PM2.5 and PM10), formaldehyde, nitrogen dioxide (NO₂), and ozone.

The assessment includes on-site data collection, typically over a period of hours or days, and a detailed report comparing results to UK regulatory standards such as Building Regulations Part F and Workplace Exposure Limits (WELs).

As indoor environments vary depending on occupancy and usage, data is collected under typical operating conditions for accurate results.

When Is Indoor Air Quality Testing Required?

Indoor air quality testing is required when a space must meet specific regulatory or health and safety standards.

Indoor air testing supports compliance with Building Regulations, COSHH guidelines, and BREEAM or WELL Building certifications.

It is required during building handover, after refurbishment, or when investigating occupant health complaints 

It is also recommended in schools, hospitals, laboratories, and commercial workplaces where ventilation performance and pollutant exposure directly affect wellbeing.

Since air quality issues are often invisible, testing provides essential data to maintain safe and productive indoor environments.

What Is Included in Indoor Air Quality Testing?

Indoor air quality testing includes the setup and use of digital instruments to monitor pollutant levels, temperature, humidity, and airflow.

Technicians install calibrated equipment to gather data on CO₂, particulates, VOCs, and other harmful substances.

The testing process may also include the assessment of ventilation rates and airflow patterns.

A comprehensive report is provided with results, interpretation, and clear recommendations for remedial action where necessary.

As different buildings present different risks, the scope of testing is tailored to the type of space and its occupants.

What Are the Benefits of Indoor Air Quality Testing?

Indoor air quality testing helps improve comfort, safety, and building performance for property owners and occupants.

Key benefits include:

• Verifies compliance with UK regulations and building standards
• Detects pollutants that may cause illness or reduced concentration
• Supports maintenance planning and HVAC system upgrades
• Helps fulfil planning, warranty, or BREEAM assessment requirements
• Provides evidence for resolving occupant complaints
• Enhances building reputation through documented safety practices

How Much Does Indoor Air Quality Testing Cost?

The cost of indoor air quality testing is from £350 to £1,000.

The cost depends on building size, number of sampling locations, and duration of monitoring.

Small office units or individual classrooms may fall at the lower end, while large multi-zone buildings with high occupancy may require extended testing and reporting.

As each space presents unique challenges, we provide fixed-price quotes after an initial consultation.

How Long Does Indoor Air Quality Testing Take?

Most assessments can be completed in one to three days.

The time frame depends on the scope and depth of testing required.

Short-term monitoring captures general trends, while longer testing may be recommended in environments with fluctuating occupancy or inconsistent HVAC performance.

Since indoor air quality affects ongoing comfort and compliance, timely testing ensures early issue identification and resolution.

Is Indoor Air Quality Testing a Legal Requirement?

Indoor air quality testing is not legally required in every building, but it is often necessary to meet Building Regulations Part F, COSHH requirements, or planning conditions.

Indoor air testing demonstrates compliance with ventilation and pollutant thresholds in schools, offices, healthcare facilities, and workplaces.

Since poor air quality can breach health and safety obligations, testing is a recognised way to fulfil a duty of care to occupants.

What Pollutants Are Measured During Indoor Air Quality Testing?

Indoor air quality assessments measure common contaminants such as carbon dioxide (CO₂), carbon monoxide (CO), volatile organic compounds (VOCs), particulate matter (PM2.5 and PM10), formaldehyde, and sometimes ozone or nitrogen dioxide (NO₂).

The selection of pollutants depends on the building use, risk profile, and client requirements.

As different spaces carry different risks, we tailor the testing plan accordingly.

Can Testing Be Carried Out While the Building Is in Use?

Testing is most effective when the building is occupied, as this provides realistic data based on normal activity, occupancy, and ventilation use.

Indoor air quality varies with use, so live testing offers a more accurate picture of actual conditions.

Since disruption is minimal, assessments can be completed during working hours without affecting operations.

What Happens If the Results Show Poor Air Quality

If pollutant levels exceed safe thresholds, the final report will include practical recommendations to resolve the issue.

This may include adjustments to ventilation systems, filtration upgrades, changes in cleaning products, or improvements to airflow design.

Since long-term exposure to indoor pollutants can impact health, we prioritise fast, cost-effective solutions.

Do You Provide Reports for BREEAM, WELL, or Planning Conditions?

We provide full documentation suitable for submission under BREEAM HEA 02, WELL Building Standard, and local authority planning conditions.

Our reports include pollutant readings, comparison with regulatory limits, and expert commentary on how results align with compliance targets.

As indoor air quality is a growing focus in sustainable design, we ensure all reporting meets recognised frameworks.

Can You Monitor Over Time or Provide Ongoing Testing?

We offer both short-term and long-term monitoring solutions.

This includes real-time sensor installation for continuous air quality logging or scheduled periodic assessments throughout the year.

As conditions can change seasonally or with building use, ongoing monitoring provides more detailed trend analysis and management insight.

How Do I Schedule Indoor Air Quality Testing?

For clear, compliant, and professionally reported indoor air quality testing across all sectors, contact Indoor Air Quality Testing. 

We deliver tailored assessments that help safeguard occupant wellbeing and building performance.

Indoor air affects daily comfort and long-term health, testing is a proactive investment in building quality.

Request your indoor air quality consultation today.

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