ndoor Air Quality Specialists in Salisbury, Wiltshire & across the UK.

We are ARM Environments, specialists in indoor air quality (IAQ), ventilation and HVAC compliance. Established in 2018, we help businesses assess, improve and maintain building air quality through testing, technical advice, system upgrades and planned maintenance. We work with building owners, facilities managers and contractors.

We are based in Salisbury near Southampton, with our wider operating base across Dorset, Somerset, Hampshire and Surrey. We also provide UK-wide availability for selected services, including IAQ testing and workplace exposure testing.

Our Assess, Remediate, Maintain Approach
Our name reflects the three stages that guide our work: assess indoor air quality and ventilation systems; remediate issues through targeted improvements, repairs or upgrades; and maintain results through monitoring, servicing, cleaning and filter management.

Indoor Air Quality Testing and Monitoring
We use active and passive sampling and digital monitors selected for each building and concern. Assessments can cover mould, VOCs, formaldehyde, CO2, carbon monoxide, PM2.5 and PM10, nitrogen dioxide, radon and other contaminants. We report measurements, likely causes and recommendations.

Indoor Air Quality Testing
We investigate indoor pollutants and ventilation concerns in non-residential buildings, helping clients understand exposure, occupant concerns and compliance issues.

Indoor Air Quality Monitoring
We deploy Aranet and Awair sensors for short-term surveys or longer-term monitoring, identifying pollutant trends and opportunities to improve ventilation.

Ventilation Validation and Testing
We assess non-residential ventilation through airflow and pressure measurements, system checks and reporting, identifying performance issues and improvements.

Certification and Specialist Surveys
We support building projects with BREEAM indoor air quality plans and post-construction measurement, WELL and Fitwel testing, TM44 inspections, LEV Testing, mould surveys and temperature mapping.

HVAC Remediation and Air Handling Units
We improve systems through AHU servicing and refurbishment, component upgrades, new AHU sourcing and installation, smart filtration management, UV-C/UVGI technologies and bipolar ionisation. Where suitable, we work with existing infrastructure rather than defaulting to full replacement.

Air Handling Unit (AHU) Servicing
We inspect, clean and maintain AHU filters, coils, fans and controls, using system condition and actual usage to inform servicing.

MaintainAway Smart AHU Upgrades
We developed MaintainAway to modernise AHUs with EC fans, long-life filters, automated monitoring and UVGI coil cleaning, supporting indoor air quality and reducing routine maintenance needs.

Ventilation Hygiene and Maintenance
We clean, inspect and maintain ventilation systems through ductwork cleaning, fire damper testing, kitchen extract cleaning, healthcare ventilation maintenance and filter replacement. We provide inspection records and compliance documentation.

Ductwork Cleaning and Ventilation Hygiene
We remove dust, debris and contaminants from ductwork using methods including robotic inspection, mechanical brushing, air whipping and HEPA-filtered extraction, followed by verification and documentation.

Fire Damper Testing and Inspection
We inspect and functionally test fire and smoke dampers, recording condition, accessibility and operation. We provide photographic evidence, compliance reports and remedial recommendations, with reference to BS 9999 and DW145.

Industries and Project Experience
We support education, healthcare, offices, industrial facilities, hospitality, leisure, laboratories, food businesses, retail and high-end residential developments. Industrial work includes investigating fumes, dusts and vapours from metalworking, woodworking, plastics and food production. Our case studies include school IAQ assessments, monitoring across Co-op retail stores, HVAC maintenance at a Hampshire leisure club and AHU and fire damper improvements at South Downs Planetarium in Chichester. We also publish BREEAM, hotel maintenance and industrial air quality projects.

Our Technical Approach and Credentials
We combine measurement, technical interpretation and building-services knowledge. Our website identifies BESA and SafeContractor accreditation and industry involvement with CIBSE and BESA. Published recognition includes the ASHRAE Technology Awards 2023 and HVR Awards 2023 for MaintainAway.

Discuss Your Building's Air Quality Requirements
Whether you need IAQ testing, a ventilation assessment, HVAC upgrades or planned hygiene maintenance, we discuss your building and requirements before recommending a practical scope of work.